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WHITNEY  LIBRARY, 
HARVARD   UNIVERSITY 


THE  GIFT  OF 

J.    D.    WHITNEY, 

Stu)\ijis  Hooper  Professor 


MUSEUM  OF  COMPARATIVE  ZOOLOGY 


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PKOCEEDINGS 


AMERICAN    PHILOSOPinCAL   SOCIETY 


HELD  AT  PHILADELPHIA 


PROMOTING  USEFUL  KNOWLEDGE 


Vol.  XV. 
DECEMBER  mQ. 

No.  96. 


PHILADELPHIA: 
PRINTED   FOR  THE   SOCIETY 

BY  M'GALIiA  &  STAVELY. 
<fl)'^  1876. 


THE 

EHYN  CHOPHORA 

OF 

AMERICA 
NORTH  OF  MEXICO 


BY  JOHN   L.    LeCONTE 

ASSISTED    BY 

GEORGE   H.    HORN. 


Proceedings  of  the  American  Philosophical  Society 

Vol.  XV.    No.  96. 


PHILADELPHIA 

1876. 


TABLE  OF  CONTENTS. 


Page. 

Pkeface •       •       •  "^'ii 

INTRODXTCTION ^i 

I.  Rhinomacerid^ 1 

II.  Rhynchitid.e '^ 

1.  Rhynchitidse ^ 

ii.  Pterocolidse ^ 

III.  Attelabid.e •' 

IV.  Byrsopid^ 11^ 

V.  Otiorhynchid^,  by  Dr.  G.  H.  Horn 13 

VI.  CURCULIONID.B 112 

i.  Sitonidse 113 

ii.  Alophidse 115 

ii).  Ithyceridse 120 

iv.  Curculionidse 112 

V.  Balaninidse 322 

VII.  Brenthid^ 323 

i.  Brenthidfe 325  ' 

ii.  Cyladidee 327 

VIII.  Calandrid^e 328 

i.  Calandridse 330 

ii.  Rhinidse 333 

iii.  Cossonidse •       .       .  331 

IX.  SCOLYTID2E 341 

i.  Platypodidse • 342 

ii.  Scolytida; 345 

X.  AnThribidje 391 

XI.  AproNiD.E 409 

Appendix  : 

1.  Corrections  and  New  Species 412 

ii.  Unrecognized  Species 428 

iii.  Corrections  to  the  Munich  Catalogue 437 

iv.  Economic  bibliography,  by  B.  Piciinian  Mann       .....  438 

Index 443 


PROCEEDINGS 


america:n^  philosophical  society. 


YoL.  XY.  DECEMBER,  18t6.  No.  96. 

THE  RHYNCHOPHOEA  OF  AMERICA,  NORTH  OF  MEXICO. 
By  John  L.  LeConte,  assisted  by  George  H.  Horn.* 

PREFACE. 

The  task  that  I  have  attempted  to  perform  in  the  present  memoir,  is  a 
very  difficult  one,  and  I  feel  that  it  has  been  accomplished  very  imperfectly. 

It  is,  namely,  from  the  study  of  the  very  small  material  represented  in 
the  fauna  of  temperate  North  America,  to  induce  entomologists  to  investi- 
gate those  Coleoptera,  which  have  been  heretofore  classed  as  Curculionidce 
and  some  allied,  but  ill-defined  families,  from  a  completely  new  standpoint; 
whei'eby  they  become  isolated  from  all  other  Coleoptera. 

The  characters  which  render  necessary  this  isolation  of  the  Rhyncho- 
phora  have  been  already  exposed  by  me  in  some  short  memoirs,  f  and 
their  value  has  been  recognized  by  several  systematists  of  excellent  ability, 
although  not  to  the  extent  to  which  I  hope  the  present  effort  will  render 
them  acceptable.  These  characters  are  mainly  to  be  found  in  the  form  of 
the  basi-lateral  elements  of  the  head  and  prothorax  on  the  under  surface  of 
the  body,  and  will  be  detailed  in  the  Introduction. 

By  these  peculiarities  of  structure,  as  well  as  by  their  food,  the  Rhyn- 
chophora  are  restricted  to  a  more  uniform  type  of  organization  than  is  exhi- 
bited in  the  normal  Coleoptera;  but  at  the  same  time  being  represented  by 
an  immense  number  of  species,  the  generic  modifications  are  very  varied. 
The  difliculty  of  tabulating  these  generic  forms  in  a  manner  to  exhibit  their 
relations  to  each  other  is  therefore  greatly  increased. 

I  have  previously  expressed  my  opinion  that  the  Rhynchophora,  being 
the  lowest  type  of  Coleoptera,  are  therefore  geologically  the  oldest.  Re- 
garding then  the  fixity  of  insect  types,  as  shown  by  the  resemblance  of  an- 
cient forms  to  those  of  the  present  time,  the  uniformity  in  food  and  manner 

*See  Proceedings,  1875,  649  (Nov.  I9th) ;  662  (Dec.  17th). 

t  Vide  infra,  Introduction,  p.  ix. 


Vlll  PREFACE. 

of  life,  and  the  immense  number  of  genera  in  this  complex,  with  which  we 
are  dealing,  we  have  a  right  to  expect  that  there  will  be  a  proportionally 
larger  survival  of  unchanged  descendants  of  those  species  or  genera  which 
were  first  introduced.  We  will,  therefore,  have  a  more  perfect  series  of 
connecting  forms  than  can  be  found  in  other  orders  of  insects,  whose 
methods  of  life  expose  them  to  the  influences  of  destruction  or  modification 
by  external  circumstances. 

Nevertheless,  the  arrangement  which  I  have  adopted,  will  show  in  the 
larger  groups  or  tribes,  a  dominance  within  the  limits  of  each  tribe  of  one 
typical  modification  of  structure,  with  variations  in  the  direction  of  modi- 
fications which  become  dominant,  and  definitive  in  other  tribes. 

It  thus  comes  to  pass  that,  neglecting  the  essential  characters  of  the  tribe, 
to  which  the  species  may  properly  belong,  the  definition  of  the  genus  will 
approximate  in  langttage  very  closely  to  that  of  some  other  gentts,  belong- 
ing to  a  very  distinct  part  of  the  series. 

In  other  words,  the  genera  belonging  to  several  tribes  will  agree  with 
each  other  in  similar  characters  of  less  value  than  the  tribal  characters. 

What  I  have  just  said  regarding  genera  is  equally  true  in  respect  to 
species.  The  form,  color  and  scttlpture  in  many  instances  are  repeated  in 
tribes  which  from  their  geographical  distribution  and  method  of  life  can- 
not be  sttpposed  to  have  any  immediate  genetic  derivation.  Instances  of 
this  kind  of  resemblance  will  be  mentioned  both  in  the  Introduction,  and 
in  the  body  of  the  memoir. 

I  have  no  theory  to  propound  regarding  this  very  complex  system  of 
cross  i-esemblances.  They  are  certainly  not  the  result  of  mimicrj^  and  pro- 
bably not  of  natural  selection,  or  any  other  name  of  an  idea  which  has  yet 
been  suggested.  A  deeper  insight  into  the  phenomena  of  organic  nature, 
which  maj%  perhaps,  be  acquired  by  our  successors  would  give  us  a  more 
reasonable  explanation  of  these  resemblances.* 

My  best  thanks  are  due  to  my  excellent  collaborator.  Dr.  G.  H.  Horn, 
for  his  careful  study  and  classification  of  the  family  Otiorlcyneliidm,  cer- 
tainly one  of  the  most  difiicult  among  the  Rhynchophora,  and  next  to  the 
genuine  Curculioniclm,  the  largest.  I  also  owe  my  kindest  acknowledg- 
ment to  Mr.  G.  W.  Belfrage,  for  a  large  series  of  specimens  from  Texas;  to 
Messrs.  H.  G.  Hubbard  and  E.  A.  Schwarz,  for  very  full  series  from  Michi- 
gan and  Florida;  to  the  Museum  of  Comparative  Zoology  of  Cambridge  for 
the  loan  of  the  Zimmermann  collection,  mostly  from  the  Southern  States ' 
and  to  Messrs.  E.  P.  Austin,  W.  Jiilich,  and  Prof.  C.  V.  Riley  for  large 
sets  of  specimens  from  various  parts  of  the  country.     Other  friends  have 

*  Mr.  A.  R.  Wallace  in  his  suggestive  address  to  the  Biological  Section  of  the 
British  Association  for  the  Advancement  of  Science,  held  at  Glasgow,  187G,  has 
expressed  himself  quite  clearly  concerning  the  inadequate  explanation  of  the 
resemblances  between  objects  of  diverse  genera,  tribes  and  families,  which  has 
thus  far  been  oflfered.  He  comments  at  length  on  a  certain  relation  between 
color  and  locality,  not  dependent  on  protective  tendencies.  This,  however,  is 
only  one  of  several  groups  of  curious  facts  which  will  be  developed  by  more  pro- 
longed and  minute  observation.     Vide  Nature,  Sept.  7th,  1876,  p.  404. 


PKEFACE.  IX 

also  assisted  Bie  in  proportion  to  the  extent  of  tlieir  respective  collections, 
and  to  them  also  I  return  thanks. 

It  is  only  justice  to  a  master  spirit  in  Zoology,  who,  with  more  imperfect 
knowledge  of  facts  than  we  possess,  was  endowed  with  deeper  intuition 
than  is  usually  given  to  man,  that  I  should  conclude  this  preface  with  the 
following  quotation  from  Oken's  Physiophilosophy  3526.*  What  he  dis- 
cerned, I  have  endeavored  to  demonstrate. 

"I  have  also  declared  the Rhynchophora  to  be  the  lowest  and  the  Lamel- 
licornes  the  uppermost  in  rank,  A  view,  which  at  present  apj^ears  to  be 
generally  adopted." 

PMladelpliia,  December  2M,  1876. 

*  Elements  of  Physiophilosophy,  by  Lorenz  Oken,  M.D.,  from  the  German,  by 
Alfred  Tulk,  London,  Ray  Society,  1847.  The  remainder  of  the  section  cited  may 
be  read  with  profit  by  all  students  disposed  to  accept  words  of  advice  from  one 
who  was  well  qualified  to  give  instruction;  but  it  is  too  long  to  be  quoted  on 
the  present  occasion,  though  teeming  with  thoughts  suggestive  of  much  that 
has  since  been  adopted,  without  due  reference  to  the  original  source. 


introductio:n'. 


Rhj'nchophorous  Coleoptera  are  those  in  which  tlie  posterior  hitcral 
elements  of  tlie  head*  and  prothoraxf  coalesce  on  the  median  line  of  the 
under  surface  of  the  body,  so  as  to  unite  by  a  single  suture. 

To  the  first  of  these  characters  there  is  no  exception  in  the  wide  range 
of  the  existing  Coleopterous  insects  ;  to  the  second  there  are  two  notable 
discrepancies.  The  first  is  Nematidium,X  commonly  classed  Avith  the 
Colydiidce,  the  other  is  the  genus  Cossyplms,l  which  has  been  considered 
as  belonging  to  the  Tenehrionida;  from  the  other  members  of  which  it 
differs,  not  only  by  the  structure  of  the  under  surface  of  the  prosternum, 
but  by  other  characters,  which  require  future  study  for  a  proper  api)recia. 
tion  of  their  importance. 

I  might  rest  the  definition  of  the  Rhynchophora  at  this  point,  and  pro- 
ceed to  indicate  the  different  series  and  families  into  wdiich,  according  to  the 
system  I  have  developed,  these  insects  should  be  divided,  but  before  doing 
so,  there  appear  to  me  certain  relations  between  the  members  of  this  sub- 
order, which  are  well  worthj^  of  attention;  and  certain  characters  which  I 
have  not  had  time  to  investigate  fully,  but  which  are  indicated  for  the 
guidance  of  those,  who  will  in  future  adopt  the  views  herein  set  forth. 

There  are  also  certain  characters  common  to  all,  or  nearly  all  Rhynchoph- 
ora, most  of  which  I  have  mentioned  in  the  two  essays  cited  lielow,  || 
but  which  for  convenience  may  be  here  briefly  recapitulated  : 

1st.  There  are  no  soft,  larval,  or  imperfectly  chitinized  forms,  or  forms 
with  short  elytra,  exposed  wings,  or  greatly  multiplied  antennal  joints, 
such  as  are  of  frequent  occurrence  among  the  normal  Coleoptera. 

2d.  There  are  none  in  which  the  side  pieces  of  the  protliorax  are  separated 
by  suture  from  the  pronotum,  and  very  few  in  Avhich  even  the  lateral 
margin  is  indicated ;  in  many  the  prosternal  sutures  are  distinct,  but  in 
some  even  these  are  obliterated. 

3d.  In  none  are  the  front  coxal  cavities  open  posteriorly,  though  in  some 

*  Le  Conte,  American  Naturalist,  Feb.,  187-5,  ix,  112. 

t  Le  Conte,  American  Journal  of  Science  and  Arts,  July,  1867. 

%  This  genus  has  been  recently  described  by  Reitter,  Verhandl.  naturforsch. 
Vereines  in  Brunn,  1876,  as  belonging  to  the  Trogositidce,  under  the  name 
Filuniis. 

§  Horn,  Tr.  Am.  Ent.  Soc.  1S6S,  p.  x. 

II  Am.  Journ.  Sc.  and  Arts,  July,  1867;  American  Naturalist,  July,  1871. 

xi 


Xll  INTRODUCTIOlSr. 

the  corneous  plate  formed  by  the  coalescence  of  the  posterior  lateral 
elements  (epimera)  is  very  narrow  ;  and  in  other  cases  (Barh,  »&c.  )the 
posterior  part  of  the  prosteruum  is  thickened  and  overlies  the  suture  on  the 
median  line,  but  without  coming  into  contact  with  the  mesosternum. 

4th.  The  ventral  segments  never  exceed  five  in  number,  and  the  first 
and  second  are  usually  larger  and  more  closely  connected,  frequently  even 
connate,  with  partially  obliterated  suture ;  the  fifth  is  sometimes  longer 
than  the  fourth,  sometimes  about  equal  to  it. 

5th.  When  there  is  any  appreciable  difference  between  the  sexes,  it  is 
usually  manifested  by  a  greater  elongation  of  the  beak  of  the  $  9  >  indi- 
cating its  use  as  an  accessory  organ  of  generation,  for  making  the  perfora- 
tion in  Avhich  the  egg  is  subsequently  placed  by  the  soft  ovipositor,  and 
pushed  down  by  the  beak. 

Gth.  The  other  sexual  difference  is  in  the  addition  of  a  small  dorsal  (or 
anal)  segment  to  the  (^(^;  this  character  is,  however,  not  obvious  in 
several  families,  the  morphological  representative  of  this  anal  segment 
being  completely  retracted  and  covered  by  the  pygidium.  In  others  this 
segment  is  visible  only  from  beneath,  simulating,  therefore,  a  sixth  ven- 
tral. 

Ttli.  The  very  rare  occurrence  of  articulated  movable  spurs  at  the  end 
of  the  tibite;  it  is  seldom,  indeed,  that  more  than  one  fixed  mucro  occurs, 
and  in  the  species  in  which  the  tarsi  are  inserted  laterally  near  the  tip,  this 
mucro  becomes  frequently  elongated  and  curved  ;  the  outer  angle  of  the 
tip  is  in  these  instances  quite  often  prolonged  into  a  curved  digitation,  like 
the  terminal  tooth  of  the  front  tibite  of  some  Scaritini,  of  the  family 
Carabidm. 

8th.  The  head  is  most  frequently  prolonged  in  front  of  the  eyes,  forming 
a  beak,  which  is  usually  narrower  than  the  front,  and  frequently  very 
slender.  A  flattened  prolongation,  similar  to  a  beak,  occurs  in  some  genera 
of  CuGujidcB,  PythklcB  and  (Edemeridm,  but  not  elsewhere  in  the  normal 
Coleoptera. 

9th.  In  the  vast  majority  of  species  the  labrum  is  wanting;  in  some 
Scolytidm  it  is  feebly  developed,  but  is  present  in  normal  form  only  in 
Bhinomaceridm  and  Antliribldo}. 

10th.  Except  in  Bhinomaceridce  and  Antlirihidce  the  palpi  arc  short  and 
rigid,  with  the  joints  diminishing  in  size;  in  those  families  they  are  slender 
and  flexible,  as  in  normal  Coleoptera. 

llth.  In  those  genera  in  which  the  hind  tibise  are  truncate  and  margined 
at  tip,  forming  a  surface  called  a  corbel,  this  surface  may  be  glabrous  or 
scaly.  In  normal  Coleoptera  they  are  always  glabrous,  and  in  ITypocepli- 
alihs  alone  they  are  densely  clothed  with  hair.* 

12th.  A  peculiar  ridge  on  the  inner  surface  of  the  elytra,  into  which  the 
ascending  margin  of  the  metathoracic  epimera  and  ventral  segments  fit, 
giving  great  firmness  and  solidity  to  tlic  hinder  part  of  the  body.     This 

*  LeConte,  Trans.  Am.  Ent.  Soc.  v,  209. 


INTItODUOTIOJ^^.  XI  a 

ridge  is  rarely  wanting;  and  is  represented  among  normal  Coleoptera,  so 
far  as  I  have  examined,  only  in  certain  Buprestkke. 

These  characters  taken  collectively,  in  addition  to  the  two  fundamental 
defining  characters  first  mentioned,  indicate  a  profound  diflerence  in  or- 
ganization, which  isolates  the  Ilhynchophora  from  all  other  Coleoptera. 
From  this  isolation  results  the  necessity  of  classifying  them  upon  other 
characters  than  those  which  are  found  useful  in  defining  series  and  fami- 
lies in  the  normal  Coleoptera.  The  great  resemblance  in  general  appear- 
ance of  the  insects  of  this  type,  and  the  endeavor  to  consider  them  as  only 
a  family  in  the  whole  series  of  Coleoptera,  has  caused  the  characters  used  in 
tills  memoir  to  be  either  undervalued  or  overlooked.  I  believe,  however, 
that  when  attention  is  directed  to  them,  and  to  certain  other  characters, 
which  I  have  not  had  time  to  fully  investigate,  the  arrangement  of  these  in- 
sects into  natural  groups  will  be  found  as  simple  and  intelligible  as  that  of 
the  normal  Coleoptera. 

Among  the  investigations  which  j^et  remain  imperfect,  I  would  mention 
as  specially  deserving  of  attention,  the  stridulating  organs.  There  are  in 
some  genera  spaces  on  the  inner  surface  of  the  elytra,  which  have  a  pearly 
lustre,  and  which  are  probably  capable,  by  friction  against  the  ascend- 
ing margin  of  the  ventral  segments,  of  producing  a  sound.  I  have  men- 
tioned these  under  the  genus  Listronotus,  of  the  Phytonomini,  but  they  are 
present  in  many  genera  of  other  tribes,  and  in  fact,  the  Gonotracheli  and 
many  others  are  known  to  emit  a  squeaking  sound. 

The  homologies  of  the  parts  of  the  head,  by  reason  of  which  the  front  por- 
tion becomes  extended  into  a  beak,  and  the  basal  piece  on  the  under  surface 
(which  separates  the  gular  sutures  in  normal  Coleoptera)  disappears,  are  also 
worthy  of  attention;  so  too  are  the  larvie,  with  the  view  of  discovering 
some  general  characters  in  which  they  difler  from  those  of  other  Coleoptera. 

A  more  careful  study  should  also  be  made  of  the  antennae  of  the  Scoly- 
iidcB,  by  specimens  mounted  in  Canada  balsam,  so  that  the  homologies  of 
the  joints  of  the  funicle,  when  they  disappear  may  be  ascertained.  The 
subject,  as  treated  in  this  memoir,  is,  I  may  say,  barely  sketched,  and  will 
yield  to  others,  who  may  devote  labor  to  it,  not  only  the  correction  of  errors 
I  have  made,  but  many  new  truths  and  generalizations  greater  in  value 
than  those  to  which  I  have  attained. 

The  affinities  of  the  families  of  Ilh3'ncliophora  among  themselves,  and 
their  resemblances  to  various  series  or  families  of  the  normal  Coleoptera 
remain  to  be  indicated. 

The  typical  Rhyuchophora,  Curcullonidm,  while  exhibiting  in  the  dif- 
ferent tribes  characters  which  are  more  individualized  and  combined  with 
special  structures  in  the  other  families,  occupy  a  central  position  around 
which  the  latter  may  be  grouped. 

The  Rhinoviacerida',  by  the  presence  of  a  labrum  and  flexible  palpi,  as 
well  as  by  the  general  form  of  b()dy,and  11-joiuted,  nou  geniculate  antennre, 
indicate  a  resemblance  to  Rhiuosiiuus,  &c.,  of  the  PytliidcB.  The  Otio- 
rhy7ic7iidm,  in  the  tribes  with  large  mentum,  and  the  Br  achy  cer  Ida  show 


XIV  INTRODUCTIOIS^ 

strong  analogy  with  the  higher  Tenebrionid(e,  in  which  the  buccal  cavitj" 
is  entirely  closed  by  the  mentum. 

B}^  the  gradual  obsolescence  of  the  deciduous  mandibular  appendage,  and 
tlie  scar,  which  is  its  natural  consequent,  the  OtiorhyncMdce  pass  almost  in- 
sensibly into  the  CurGulionid(P.  The  last  named  family  through  the  Eri- 
rlvnini  is  affiliated  with  the  Bhyncliitidce,  and  through  the  Barini  with  the 
CalandridcB  and  CossonidcB. 

The  Hylastes  group  of  the  Scolytidm  shows  strong  affinities  with  the  Cos- 
sonidce,  and  a  slight  reversion  towards  the  CryptorhyncMni  of  the  Curcu- 
lionidce. 

The  Brentliidoi  are  isolated,  and  indicate  a  relationship  which  is  neither 
of  affinity  or  analogy,  but  rather  of  contemporaneous  origin  with  Hypoceph- 
alidw,  Rhysodidm,  Gupesidm,  and  perhaps  some  other  families  of  normal 
Ooleoptera,  which  have  been  yet  imperfectly  studied.  Nevertheless,  by 
certain  abnormal  genera,  not  occurring  in  our  fauna,  they  exhibit  a  re- 
semblance in  some  characters  to  the  sub-family  Platypodidce  of  the  Scoly- 
tidce,  and  connect  both,  by  their  resemblances  with  the  ColydiidcB  of  the 
Clavicorn  series  of  normal  Coleoptera.* 

Some  of  the  Scolytidm  in  form  and  general  appearance  resemble  the  feebler 
groups  (Choragus,  &c.)  of  the  Anthribidce,  but  the  characters  of  the  latter 
are  so  peculiar,  that  they  must  be  viewed  as  a  synthetic  type,  combining 
resemblances  to  very  diverse  series.  The  form  of  the  mentum,  if  I  have 
interpreted  it  correctly,  is  found  only  in  the  Adephaga  {Ampldzoa),  Avhile 
the  great  sexual  dift'erences  in  the  length  of  the  antenna?  occur  only  in  the 
Gerambycidcc,  The  well  developed  labrum,  filiform  flexible  palpi,  straight, 
11-jointed  antenntc,  and  epipleurte  indicate  a  higher  organization  than  is 
found  in  other  Rhynchophora.  Tlie  complete  consolidation,  without  su- 
tures, of  the  elements  of  the  under  surface  of  the  head  and  prothorax,  indi- 
cate a  progress  along  the  line  of  true  Rhynchophorous  development,  upon 
which  I  have  based  the  two  fundamental  defining  characters.  The  pro- 
gress in  this  instance  has  been  carried  so  far  as  to  cause  the  disappear- 
ance of  these  very  characters.  If  any  resemblance  to  the  normal  Coleop- 
tera could  be  seen  to  replace  them,  the  Antliribidw  would  be  removed,  as 
has  been  done  with  tlie  BrucMdm,  to  some  other  part  of  the  system.  But 
this  is  not  the  case,  and  they  must  remain,  therefore,  as  the  expression  of 
the  most  perfect  development  thus  far  attained  in  the  Rliynchophorous 
type.f 

The  classification  here  adopted  is  simpl}^  that  set  forth  by  me  in  the 
memoir:j;  above  cited,  which  was  read  before  the  National  Academy  of 

*It  will  be  here  remembered  that  Nematidium  has  the  median  suture  behind 
the  point  of  the  prosternum  precisely  as  in  Rhynchophora. 

t  In  this  connection  it  is  important  to  remark,  that  while  the  food  of  the 
Rhynchophora  is  almost  univcrsallj*  vegetable  tissues,  either  living  or  dead, 
Brachytarsus  is  a  parasite  upon  a  Hemipteron,  of  the  genus  Coccus,  as  narrated 
by  Nccrdlinger,  Stettin  Ent.  Zeitung,  1818,  p.  230;  Lacord.,  Gen.  Col.  vii,  481. 

X  American  Naturalist,  July,  1874. 


Il^TRODUCTION.  XV 

Sciences,  at  tlie  session  held  at  "Washington,  April,  1874;  I  have,  however, 
left  out  the  families  BraGliyceridcB,  Amycteridce  and  Belidce,  defined  in 
that  essay,  but  which  are  not  represented  in  our  fauna. 

There  are  three  series,  composed  of  eleven  families,  represented  in  Tem- 
perate and  Arctic  North  America,  which  may  be  diagnosed  as  follows  : 

I.  Abdomen  (j^  9  f^like  ;   pygidium  small,  elytra  without  lateral  fold  on 

inner  surface HAPLOGASTRA. 

Labrum  distinct,  mandibles  flat,  simple Rhinomaceridae. 

Labrum  wanting  : 
Mandibles  flat,  toothed  on  outer  and  inner  edge  Rhynchitidae. 

"         stout,  pincer-shaped Attelabidse. 

II.  Abdomen  (J'  9  dissimilar  ;  (^  with  an  additional  anal  segment ;  pygid- 

ium large  ;  elytra  with  acute  lateral  fold  on  in- 
ner surface ALLOGASTRA. 

A.  Antenuaj  with  annulated  or  solid  club. 
Tarsi  narrow,  setose. 

Gular  margin  prominent,  presternum  exca- 
vated   Byrsopidae. 

Tarsi  dilated,  usually  with  a  brush  of  hair  beneath. 

Mandibles  with  deciduous  tip,  leaving  a  scar  Otiorhynchidse. 
Mandibles   without  scar,    usually   pincer- 
shaped  Curculionidse. 

B.  Antennse  with  ten  or  eleven  distinct  joints Brenthidae. 

III.  Abdomen  (^  9  alike  ;  elytra  with  a  distinct  lateral  fold  on  the  inner 

surface HETEROGASTRA. 

A.  Pygidium  vertical  or  declivous  : 

Antennae  geniculate,  clubbed  ;  labrum  want- 
ing ;  last  spiracle  covered  by  ventral  seg- 
ments    Calandridae. 

Antennse  straight ;  labrum  distinct ;  last  spir- 
acle not  covered  by  ventral  segments  ;  py- 
gidium deeply  notched  to  receive  sutural 
apex  of  elytra Anthribidae. 

B.  Pygidium  horizontal,  smaller  : 

Antennse  geniculate,  clubbed  ;  terminal  edge 

of  last  ventral  segment  acute,  surrounding 

the  last  dorsal ;  tibiaj  generally  compressed 

and  serrate Scolytidae. 

Antennse  straight,  with  annulated  club  ;  max- 

illse  very  large,  palpi  and  ligula  feeble Apionidae. 

Among  the  genera  and  species  described  in  the  present  memoir,  there 
will  doubtless  be  many  which,  with  more  extended  comparisons,  will  be 
found  identical  with  those  which  occur  in  other  regions.     It  will  be  a  just 


XVI  rt^TRODUCTION. 

criticism,  that  I  have  failed  to  identify  them  with  those  ah'eady  in  the  books. 
In  explanation  of  this,  I  would  say  that  I  have  defined  the  tribes,  genera 
and  species,  in  many  instances,  by  characters,  which. have  been  unnoticed 
or  neglected  bj^  previous  investigators  ;  and  finding  that  quite  frequently, 
species,  having  a  strong  external  resemblance,  differed  by  structural  charac- 
ters of  great  moment,  I  did  not  feel  warranted  in  applying  to  them  names 
given  to  species,  which  agreed  with  them  in  the  outline,  vestiture  and 
sculpture  of  the  larger  parts  of  the  body,  but  which  have  been  described 
from  other  zoological  districts.  It  will  be  easy,  by  the  aid  of  the  structural 
characters  which  I  have  given,  to  identify  my  species  with  the  types  exist- 
ing in  European  cabinets.  I  would  rather  that  those  I  have  named  would 
sink  into  synonymy,  than  that,  in  the  present  condition  of  science,  I  should 
appear  to  teach  false  ideas  regarding  geographical  distribution,  which,  Avhen 
carefully  studied,  must  give  us  important  aid  in  attaining  a  knowledge  of 
the  causes  and  develoijment  of  the  existing  order  of  things. 


LeConte.]  KHINOMACERIDJE. 


Family  I.      RHIl^OMACERID^. 

Mentum  transverse,  small,  emarginate  in  front,  supported  on  a  very 
broad  gular  peduncle  ;  ligula  and  palpi  small . 

Maxillae  exposed,  lobes  short,  ciliate  at  tip,  inner  one  very  siiort  ;  palpi 
4-jointed,  cylindrical,  well  developed.  Mandibles  flat,  curved,  acute, 
toothed  on  the  inner  side. 

Antennae  inserted  at  the  side  of  the  beak  near  the  end,  11-jointed,  straight, 
first  joint  a  little  stouter  than  the  second,  but  not  longer,  joints  2 — 6  nearly 
equal,  7  and  8  a  little  shorter  and  broader,  9 — 11  forming  an  elongate  loose 
club,  the  last  joint  oval,  pointed,  divided  transversely  near  the  tip.  All 
the  joints  are  sparsely  pilose,  and  those  of  the  club  are  covered  with  sensi- 
tive surface. 

Head  prominent  notdeflexed,  eyes  convex,  prominent,  rounded,  not  very 
finely  granulated  ;  beak  as  long  as  the  prothorax,  rather  flat,  nari'owest 
about  the  middle,  wider  at  base  and  tip;  without  antennal  grooves.  La- 
brum  distinct. 

Prothorax  truncate  before  and  behind,  sides  convex,  prosternal  sutures 
distinct,  widely  separated,  parallel  in  front,  then  curving  inwards,  and  at- 
taining the  coxal  cavity  about  the  middle  of  its  outer  margin  ;  coxal  cavi- 
ties rounded,  confluent. 

Mesosternum  flat,  pointed  behind  at  the  middle,  coxal  cavities  rounded, 
confluent ;  trochantin  large ;  epimera  transverse,  oblique,  attaining  the 
trochantin . 

Metasternum  rather  long,  side  pieces  narrow,  slightly  dilated  externally 
in  front.  , 

Elytra  covering  the  pygidiura,  rounded  at  tip,  without  epipleurae,  and 
without  fold  on  the  inner  surface  near  the  side. 

Abdomen  with  five  free  ventral  segments  nearly  equal  in  length, 
separated  by  straight  sutures,  intercoxal  process  acute  ;  dorsal  segments 
coriaceous,  nearly  equal  in  length,  the  last  more  corneous,  articulating  with 
the  last  ventral  ;  anal  segment  of  (J*  convex,  not  very  prominent  ;  side  mar- 
gin of  abdomen  acute,  but  not  fitting  into  an  elytral  groove. 

Anterior  coxae  prominent,  contiguous  ;  middle  coxae  rounded,  contiguous  ; 
hind  coxae  transverse,  slightly  separated  by  the  acute  intercoxal  process, 
and  extending  to  the  side  of  the  abdomen. 

Legs  slender,  not  elongated,  tibiae  truncate  at  tip,  middle  and  hind  pair 
with  small  tei-minal  spurs  ;  tarsi  brush-like  beneath,  4-jointed,  third  joint 
broad  deeply  bilobed,  claws  divergent,  simple  or  slightly  broader  at  base 
(in  our  species). 

This  family  contains  a  few  species  inhabiting  the  northern  temperate 
zone,  and  depredating  on  the  male  flowers  of  coniferous  trees  ;  in  which 
the  eggs  are  deposited.  As  I  have  observed  on  a  former  occasion,  this 
family  ia  a  synthetic  or  undifferentiated  type  in  which  the  Rhynchophora 
make  the  nearest  approach  to  the  lower  Heteromera  ;  it  is  therefore  infcer- 

PROC.  AMER.  PHILOS.  SOC.  XT.  96.  A 


2  '       EHINOMACEKID^.  [i.eConte. 

esting  to  see  that  it  clings  to  a  very  ancient  and  synthetic  type  of  vege- 
tation 
Our  species  all  belong  to  one  genus. 

RHINOMACER  Fabr. 

Pubescence  long  and  coarse : 

Prothorax  not  longer  than  wide 1.  pilosus. 

Prothorax  longer  than  wide 2.  elongatus. 

Pubescence  short  and  fine 3.  comptus. 

The  (J'  difiers  from  the  9  by  the  front  tibiae  being  longer  and  slightly 
curved  inwards,  and  the  beak  longer,  more  slender,  and  less  dilated,  at  the 
tip.  The  tufts  of  hair  at  the  middle  of  the  third  and  fourth  ventral  seg- 
ments of  the  9  are  also  present  in  our  species. 

The  anal  segment  characteristic  of  the  (^  of  the  second  series  of  Rhyn- 
chophora  also  exists  in  Rhinomacer,  but  is  not  prominent,  and  is  almost 
concealed  by  the  last  dorsal  segment,  which  is  rounded  at  tip. 

1.  R.  pilosus,  n.  sp. 

Brown  or  blackish  ;  antennae  and  legs  paler  ;  pubescence  long  and  coarse. 
Beak  punctured  and  substriate,  head  densely  punctured.  Prothorax  as 
wide  as  long,  densely  and  strongly  punctured,  sides  rounded.  Elytra  con- 
vex, parallel,  elongate,  coarsely  punctured.     Length  3.6  mm's  ;  .15  inch. 

Lake  Superior,  Virginia,  California  ;  four  specimens. 

3.  E.  elongatus,  n.  sp. 

Blackish  with  a  slight  brassy  tinge  ;  antennae  and  legs  brown  ;  pubescence 
pale  brown,  long  and  coafse.  Beak  with  the  outer  half  pale  ;  sculptured 
as  in  the  preceding.  Prothorax  a  little  longer  than  wide,  very  densely 
liunctured,  sides  very  slightly  rounded.  Elytra  rather  narrower  than  in 
the  preceding.    Length  3.6  mm's,  .15  inch. 

Pennsylvania  four  specimens.  Two  are  dark  colored  ;  one  dark  with 
pale  elytra,  and  one  entirely  pale  brown. 

One  9  from  Canada,  with  pale  brown  elytra  has  the  form  and  sculpture 
of  the  other  four,  except  that  the  prothorax  is  scarcely  at  all  rounded  on 
the  sides,  and  is  less  densely  punctured,  and  the  elytra  still  more  elongated. 
It  may  indicate  another  species,  but  I  am  unwilling  to  designate  it  as  such 
without  more  specimens. 

8.  R.  comptus,  n.  sp. 

Form  and  size  of  B.  pilosus  ;  blackish  with  a  distinct  brassy  tint,  clothed 
with  short  whitish  hair.  Head  and  beak  as  in  the  other  species.  Pro- 
thorax as  wide  as  long,  rounded  on  the  sides,  more  finely  and  densely  punc- 
tured. Elytra  more  densely  and  rugosely  punctured.  Stem  of  antenna? 
pale  brown.    Length  3.6  mm's  ;    15  inch. 

One  9,  Lake  Tahoe,  California;  Mr.  Crotch.  Quite  distinct  by  the 
shorter  pubescence  and  finer  and  denser  punctuation. 


LeOonte.] 


EHYNCIIITIDJE. 


Family  IT.     RHYIS^CHITID^. 

Mentum  small,  subquadrate,  supported  upon  a  long  narrow  gular  pedun- 
cle ;  ligula  prominent,  small,  palpi  short. 

Maxilkie  exposed,  palpi  short,  rigid,  as  in  Curculionida?,  4-joiuted. 

Mandibles  toothed  on  the  outer  and  inner  side  ;  capable  of  great  lateral 
extension  ;  in  repose  the  outer  apical  tooth  on  each  projects  forwards,  so 
that  two  small  acute  teeth  seem  to  project  from  the  mouth. 

AntennfB  inserted  at  the  sides  of  the  beak,  in  position  varying  according 
to  the  genus  ;  11-jointed  straight,  tirst  joint  not  elongated,  and  scarcely 
stouter,  2 — 8  slender,  9 — 11  broader,  forming  a  loose  club,  and  covered  with 
sensitive  surface. 

Head  prominent,  not  deflexed,  eyes  rounded  finely  granulated  ;  beak 
slender,  varying  somewhat  in  form  according  to  the  genus. 

Prothorax  truncate  before  and  behind,  convex,  prosternal  sutures  not 
visible,  coxal  cavities  rounded,  somewhat  transverse,  with  a  distinct  fissure 
at  the  outer  side  margin  :  distant  in  Pterocolus,  confluent  in  other  genera. 

Mesosternum  flat,  acute  behind  in  all  but  Pterocolus,  and  with  the  side 
pieces  normal  inform  and  diagonally  divided  ;  in  that  genus  they  are  trans- 
verse, prominent,  apparently  undivided,  and  ascend  between  the  prothorax 
and  humeral  angle  of  the  elytra,  suddenly  declivous  and  excavated  in  front 
for  the  protection  of  the  legs  ;  coxal  cavities  approximate,  except  in  Ptero- 
colus. 

Metasternum  rather  long,  with  narrow  side  pieces  ;  shorter  with  wide 
side  pieces  in  Pterocolus. 

Elytra  separately  rounded  behind,  exposing  the  pygidium  in  some  genera  ; 
conjointly  rounded,  and  covering  the  pygidium  in  others,  epipleuraj  dis- 
tinct ;  submarginal  fold  on  inner  face  short  and  straight. 

Abdomen  Avith  five  free  ventral  segments,  nearly  equal  in  length,  sepa- 
rated by  straight  sutures,  intercoxal  process  acute  except  in  Pterocolus  ; 
(J^  without  additional  anal  segment,  pygidium  in  both  sexes  triangular,  de- 
flexed  ;  sides  of  segments  not  forming  an  acute  edge,  and  not  fitting  into  a 
lateral  groove  of  the  elytra. 

Anterior  coxae  usually  conical,  contiguous,  and  prominent;  smaller, 
rounded  and  separated  in  Pterocolus. 

Middle  coxae  similar  to  the  front  ones.  - 

Hind  coxge  transverse,  reaching  to  the  margiaof  the  elytra,  or  nearly  so. 

Legs  slender,  rather  long,  tibiae  truncate  at  tip,  with  small  terminal 
spurs  ;  tarsi  brush -like  beneath,  4-jointed,  third  joint  broad  deeply  bilobed; 
claws  bifid,  or  acutely  toothed. 

Though  nearly  related  to  the  preceding  family,  these  species  arc  readily 
distinguished  by  the  absence  of  labrum,  and  the  peculiar  form  of  mandible, 
which  recurs  again  only  in  Desmoris,  an  Erirhine  genus  of  Curculionidai. 

"While  in  Rhinomaceridse  a  relationship  to  normal  Coleoptera  is  seen  in 
the  presence  of  a  labrum,  and  better  development  of  maxillary  palpi,  a 


IIHYNCHITID^. 


[LeOonte. 


similar  tendency  is  evinced  in  the  Rhynchitidse  by  the  distinct  epipleurse. 
In  the  anomalous  genus  Pterocolus  moreover,  the  prothorax  is  distinctly 
and  acutely  margined  at  the  sides,  and  excavated  beneath,  so  as  to  form  a 
large  cavity  for  the  reception  of  the  front  and  middle  legs.  This  character 
is  seen  in  no  other  Rhynchophorous  insect,  and  would  almost  warrant  its 
reception  as  a  distinct  family.  For  the  present  however,  I  prefer  placing 
it  as  a  sub- family. 

/ 
Sub-family  I.    EHYNCHITID^. 

The  distinctive  characters  of  this  sub-family  liave  been  pointed  out,  but 
may  be  Ijriefly  resumed  as  follows  : 

Body  rather  elongate,  or  pyriform,  front  and  middle  coxae  contiguous, 
conical,  prominent.  Prothorax  without  side  margin,  not  excavated  be- 
neath. Mesothorax  with  side  pieces  diagonally  divided,  epimera  not  ascend- 
ing.    Metathorax  with  narrow  parallel  side  pieces. 

Our  genera  are  as  follows  : 
Pygidium  covered  by  elytra. 

Elytra  punctured  irregularly AULETES. 

Elytra  striate ETJGNAMPTUS. 

Pygidium  exposed,  elytra  with  striae  of  punctures,         E.HYNCHITES. 

AULETES  Sch. 

Three  species  are  known  to  me  : 

Antennae  inserted  at  the  middle  of  the  beak. 
Black  coarsely  punctured,  thinly  pubescent 1.  ater. 

Antennae  inserted  near  the  base  of  the  beak. 

Bluish  black,  densely  punctured,  thinly  pubescent 2.  subcoeruleus. 

Vei-y  small,  brown,  irregularly  pubescent 3.  cassandrse. 

1.  A.  ater,  n  sp. 

Robust,  black,  thinly  clothed  with  very  fine  gray  pubescence,  which  is 
easily  rubbed  oft".  Beak  longer  than  the  head  and  prothorax,  nearlj'  straight, 
slightly  flattened  above,  coarsely  punctured  and  slightly  striate  towards  the 
base  ;  head  strongly  punctured,  eyes  small,  very  convex.  Prothorax  as 
long  as  wide,  slightly  narrowed  in  front,  very  little  rounded  on  the  sides, 
strongly  punctured,  with  a  faint  smooth  dorsal  line.  Elytra  twice  as  wide 
as  the  prothorax,  very  convex,  deeply  and  coarsely  punctured.  Antennae 
inserted  about  the  middle  of  the  beak.     Length  3.6  mm's  ;  .15  inch. 

Illinois  and  Maryland  ;  three  specimens. 

2.  A.  subcoeruleus,  n.  sp. 

Less  robust,  blue  black,  thinly  clothed  with  short  suberect  pubescence. 
Beak  slender,  as  long  as  the  head  and  prothorax,  coarsely  punctured,  chan- 
neled towards  the  base  ;  antenjise  inserted  near  the  base,  head  coarsely 
punctured,  eyes  larger  less  prominent.  Prothorax  a  little  wider  than  long, 
rounded  on  the  sides,  strongly  punctured.     Elytra  one-half  wider  than  the 


LeConte]  RHYJfOHITID^.  5 

prothorax,  convex,  less  coarsely  aud  more  densely  punctured.     Length  3.3 
mm's  ;  .13  inch. 
Nebraska  ;  three  specimens  kindly  given  me  by  Mr.  Ulke. 

3.  A.  cassandrse,  n.  sp. 

Very  small,  less  robust,  yellowish  brown,  varied  sometimes  with  fuscous, 
irregularly  clothed  with  rather  coarse  pale  pubescence.  Beak  as  long  as 
the  head  and  prothorax,  coarsely  punctured  ;  head  and  eyes  as  in  A.  sub- 
coeruleus  ;  antenna;  inserted  near  the  base  of  the  beak.  Prothorax  longer 
than  wide,  rounded  on  the  sides,  densely  punctured,  with  a  faint  smooth 
dorsal  line.  Elytra  one-half  wider  than  the  prothorax,  coarsely  punctured, 
punctures  arranged  in  rows  near  the  base.     Length  2  mm's  ;  .08  inch. 

Detroit,  Michigan,  and  Capron,  Florida  ;  collected  by  Messrs.  H.  G. 
Hubbard  and  E.  A.  Schwarz,  on  Cassandra  calyculata. 

EUQNAMPTUS  Sch. 

The  species  of  this  genus  are  more  slender  in  form  than  the  other  mem- 
bers of  the  family,  and  the  legs  are  longer  and  more  feeble.  According  to 
the  punctuation  of  the  head,  prothorax  aud  elytra,  the  species  may  be 
readily  recognized  : 

Elytral  interspaces  very  narrow 1.  striatus. 

•'  "  wider  than  the  striiB. 

Front  not  channeled. 

Head  feebly  punctured,  narrowed  behind.    2.  angustatus. 

"  "  not         "  "       3.  coUaris. 

"     more  strongl}^  punctured,  antenna;  stouter..  .       4.  punctieeps. 
Front  distinctly  channeled , .        5.  sulcifrons. 

1.  Eu.  striatus,  n.  sp. 

Elongate,  black,  clothed  with  erect  black  hairs,  head  and  prothorax  red- 
dish yellow.  Beak  black,  coarsely  punctured,  distinctly  carinate  behind 
the  antennae,  which  are  inserted  about  the  middle  and  are  long  and  slender  ; 
front  sparsely  punctured,  obsoletely  channeled.  Prothorax  longer  than 
wide,  sparsely  coarsely  punctured  ;  dorsal  line  deep,  abbreviated  at  each 
end.  Elytra  with  strise  composed  of  deep  transverse  punctures  closely 
placed  ;  interspaces  narrow,  each  with  a  row  of  distant  but  distinct  punc- 
tures.    Length  4.7   mm's  ;  .19  inch. 

Haulover,  Florida  ;  Messrs.  Hubbard  and  Schwarz. 

I  have  seen  three  9  ;  the  eyes  are  large,  and  the  front  rather  broad  and 
convex,  as  in  the  next  species. 

2.  Eu.  angustatus  Gyll.,  Sch.  Cure,  v,  342  ;  RliyncTiites  ang.  Herbst, 
Kafer,  vii,  140,  Tab.  105,  f.  4;  Anthribus  nigripennis  Fabr.,  Syst.  El.  ii, 
410  ;  Ehinosimus  nigr.  Latr.,  Gen.  Cr.  et  Ins.  ii,  233  ;  Hist.  Nat.  Cr.  et 
Ins.  xi,  27  :  RhyncMtes   nigr.  Oliv.,  Ins.  81,  87,  tab.  2,  f.  39. 

(^  eyes  larger,  front  narrower,  head  gradually  narrowed  behind  ;  middle 
tibia;  longer  and  slightly  bent  inwards  near  the  tip  ;  external  apical  tooth 
of  mandibles  not  prominent. 


6  EHY:N-CniTID^.  [LeUonte. 

9  eyes  less  prominent,  front  wider,  head  broadly  rounded  behind  the 
eyes  and  more  convex  ;  middle  tibiae  straight ;  external  apical  tooth  of 
mandibles  very  prominent. 

Middle,  Southern,  and  Western  States  to  Texas.  Very  variable  in  color, 
but  with  the  legs  usually  yellow,  rarely  varied  with  fuscous. 

3.  Eu.  collaris  Gyll.,  Sch.  Cure,  v,  341;  AntJiribus  coll.,  Foibr.Syst. 
El.  ii,  410  :  Rhynchites  coll.,  Oliv.  Ins.  81,  28,  tab.  2,  f.  40  ;  RMnosimus 
coll.,  Latr.  Hist.  Nat.  Cr.  et  Ins.  xi,  27  ;  RJiyncliites  ruficollis  Germ.,  Ins. 
Nov.  188. 

Middle,  Southern,  and  Western  States,  to  Texas.  Equally  variable  in 
color,  but  the  legs  are  almost  always  black,  rarely  varied  with  testaceous. 

Of  twelve  specimens  before  me  all  seem  to  be  9 .  ^^^  differ  from  those 
of  the  preceding  species  only  by  having  the  head  behind  the  eyes  cylindri- 
cal and  not  narrowed.  It  may  possibly  be  a  dimorphous  form  of  Eu. 
angustatus. 

4.  Eu.  puncticeps,  n.  sp. 

Of  the  same  form  as  collaris,  testaceous  clothed  with  erect  hairs.  Beak 
rather  stouter  less  deeply  scu]i)tured,  front  obsoletely  channeled,  head 
coarsely  and  sparsely  punctured,  cylindrical  not  narrowed  behind.  Pro- 
thorax  coarsely  punctured,  feeblj'  channeled.  Elytra  with  striaj  composed 
of  approximate  punctures,  interspaces  wide  flat,  each  with  a  row  of  very 
small  distant  punctures.  Antennae  extending  to  the  base  of  prothorax, 
stouter  than  in  the  other  species.     Length  3.6  mm's  ;  .15  inch. 

Illinois,  Mr.  B.  D.  Walsh  ;  Georgia.  I  have  seen  but  two  9  of  this 
species  ;  it  is  easily  recognized  by  the  stouter  antennae,  and  more  uni- 
formly sculptured  beak,  which  is  free  from  the  impressions  and  lines  seen 
in  the  two  preceding  species. 

5.  Eu.  sulcifrons  Gyll.,  Sch.  Cure,  v,  343. 

I  refer  to  this  species,  a  (^  from  Texas,  sent  by  Mr.  Belfrage.  It  is  of 
exactly  the  same  form  and  sculpture  as  Eu.  angiiMatus,  but  the  eyes  are 
less  prominent,  more  as  in  the  9  of  that  species,  and  there  is  a  fine  but  dis- 
tinct frontal  channel  ;  the  head  is  gradually  and  distinctly  narrowed  be- 
hind the  eyes.  The  color  is  testaceous,  with  a  lateral  blackish  vitta  on  tlie 
elytra  gradually  becoming  broader  behind  ;  an  extension  of  this  dark  color 
would  give  the  appearance  mentioned  by  Gyllenhal,  in  whose  specimen 
the  elytra  were  black  with  a  blue  reflexion,  and  pale  piceous  towards  the 
base. 

RHYNCHITES  Herbst. 

Pubescent  species 2 

Glabrous  species 7 

2.  Pubescence  long  erect 3 

"         short,  body  red  above 1.  bicolor. 

3.  Beak  bistriate  and  carinate  at  base 4 

"      flattened  not  carinate  at  base 6.  planifron?. 


LeContc  ] 


RHYJ^CHITID^. 


4.  Strise  distant  not  veiy  distinct  5 

"       composed  of  large  deep  punctures 6 

5.  Color  black  bronzed 2.  geneus. 

"     blue 3.  mexicanus. 

6.  Beak  narrow 4.  liirtus. 

"      broad,  dilated  at  tip 5.  glastinus. 

7.  Legs  dark  colored 8 

Legs  yellow,  body  coppery  golden 7.  auretis. 

8.  Bronzed,  frontal  fovea  deep 8.  fossifrons. 

Frontal  fovea  obsolete 9 

9.  Blue  bronzed,  head  strongly  punctured 9.  cyanellus. 

Coppery,  head  feebly  punctured 10.  geratus. 

1.  R.  bieolor  Herbst,  Kiifer,  vii,  131,  tab.  104,  f.  6;  Oliv.,  Ins.  81,  23, 
tab.  2,  f.  31,  GylL,  Sch.  Cure,  i,  212  ;  Attelabus  bic.  Fabr.,  Ent.  Syst.  i,  2, 
888  ;  Syst.  El.  ii,  422  ;  CurcuUo  6ic.,  Fabr.  locis  variis. 

An  abundant  species  found  on  wild  roses  from  the  Atlantic  to  the  Pacific 
coast.  The  head  as  far  as  the  eyes,  the  prothorax  and  elytra  are  red  in  tlie 
specimens  from  the  eastern  part  of  the  continent.  I  have  indicated  in  my 
collection  the  following  races : 

a-  Head  entirely  black.    Oregon  and  California. 

i3.    Head,  stem  of  antennie  and  legs  red.     Colorado. 

y.  Red,  except  the  club  of  the  antennas,  and  sides  of  metathorax,  which 
are  dark.     Colorado. 

The  beak  of  the  9  is  shorter  and  stouter  than  in  ^,  but  I  see  no  other 
sexual  difference. 

2.  R.  seneus  Boh.,  Bull.  Mosc.  vi,  22  ;  Sch.  Cure,  i,  21o  ;  Fahraeus 
Sch.  Cure,  v,  323. 

Middle,  Southern,  and  Western  States  to  Colorado.  A  variety  occurs,  in 
whicli  the  elytra  are  testaceous.  I  observe  no  sexual  differences  in  the 
specimens  before  me. 

3.  R.  mexicanus  Gyll  ,  Sch.  Cure,  i,  237  ;  Chevr.,  Col.  Mex.  108. 

I  refer  to  this  species  one  specimen  from  Arizona,  very  similar  to  R.  hir- 
tiis,  but  of  a  blue  color  ;  the  beak  is  rather  shorter  and  broader,  and  slightly 
dilated  at  tip  ;  the  two  strine  towards  the  base  are  equally  apparent,  and  the 
front  is  similarly  channeled.  The  head  and  prothorax  are  somewhat  less 
coarsely  punctured,  and  the  elytral  strife  are  more  evident,  and  composed 
of  rather  larger  punctures.  The  differences,  except  in  color  and  form  of 
beak,  are  not  obvious  ;  the  former  may  be  variation,  and  the  latter  is, 
perhaps,  sexual. 

4.  R.  hirtus  Oliv.,  Ent.  81,  26,  tab.  2,  f.  36;  GylL,  Sch.  Cure,  i,  231-, 
Attelahus  hirtus  Fabr.,  Syst.  El.  ii,  421. 

Carolina  to  Florida. 

5.  R.  glastinus  Lee,  Pacific  R.R.  Expl.  and  Surv.,  Insects,  52. 

San  Francisco,  California.     Remarkably  different  from  our  other  species 


KHYNCHITID^. 


[LeUonte. 


by  the  broader,  shorter,  and  more  deeply  sculptured  beak.     No  sexual  dif- 
ferences observed. 

6.  R.  planifrons  n.  sp. 

Moderately  elongate,  dark  blue,  clothed  with  long  erect  hair.  Beak 
slender,  as  long  as  the  head  and  protliorax,  sparsely  coarsely  punctured, 
striate  in  front  of  the  antennae,  flattened  behind  them,  and  margined  at  the 
sides.  Head  coarsely  punctured,  frontal  channel  short,  deep.  Protliorax 
slightly  narrowed  in  front,  not  rounded  on  the  sides,  sparsely  punctured, 
feebly  channeled.  Elytra  one-half  wider  than  the  prothorax,  impressed 
behind  the  base,  striae  composed  of  very  large  distant  punctures,  inter- 
spaces rather  wide,  each  with  a  row  of  small  but  deep  punctures.  Length 
;15  mm's  ;  .14  inch. 

Cape  San  Lucas,  Mr.  Xantus.  I  have  seen  but  one  specimen.  It  is  nearly 
of  the  same  form  as  B.  mexicanus  but  a  little  less  robust. 

7.  R.  aureus,  n.  sp. 

Elongate,  glabrous,  bright  coppery  golden.  Beak  rather  slender,  punc- 
tured ;  head  coarsely  and  deeply  punctured,  with  a  narrow  smooth  frontal 
space  which  is  channeled.  Antennae  slender,  testaceous  with  blackish 
club.  Prothorax  longer  than  wide,  sides  very  slightly  rounded,  coarsely 
and  deeply  punctured.  Elytra  one-third  wider  than  prothorax,  impressed 
behind  the  base,  striae  composed  of  deep  close-set  punctures,  interspaces 
narrow,  sparsely  rugose.  Legs  bright  testaceous  yellow.  Length  2.3  mm's; 
.09  inch. 

Santa  Barbara,  California.  Abundant,  Mr.  6.  R.  Crotch.  The  beak 
seems  a  little  shorter  and  broader  in  some  specimens,  which  are  probably 
'^  ;  otherwise  I  perceive  no  sexual  diflferences. 

8.  R.  fossifrons,  n.  sp. 

Elongate,  glabrous,  bronzed  ;  legs  dark.  Beak  slender,  as  long  as  the 
head  and  prothorax,  cylindrical,  shining,  sparsely  punctured  ;  head  coarsely 
but  not  densely  punctured,  with  a  deep  elongate  fovea  on  the  front.  Pro- 
thorax strongly  punctured,  not  narrowed  in  front,  very  slightly  rounded 
on  the  sides.  Elytra  one-third  wider  than  the  prothorax,  impressed  behind 
the  base,  striae  composed  of  deep  approximate  punctures,  interspaces  nar- 
row, rugose.     Length  2.3  mm's  ;  .09  inch. 

One  specimen,  Mariposa  ;  Dr.  A.  Thevenet.  Of  the  same  form  and  size 
as  the  preceding,  but  differing  by  the  beak,  frontal  fovea,  more  rugose  elytra 
and  dark  legs. 

9.  R.  cyanellus,  n.  sp. 

Of  the  same  form,  size  and  sculpture  as  the  two  preceding,  but  of  a  dark 
blackish  blue  color.  Beak  slender  somewhat  flattened,  strongly  punctured  ; 
head  strongly  and  sparsely  punctured,  without  frontal  fovea.  Prothorax 
and  elytra  as  in  E.  fossifrons.     Length  2.1  mm's  ;  .085  inch. 

Massachusetts  and  Illinois  ;  four  specimens.  The  subbasal  impi-ession 
of  the  elytra  is  less  distinct  than  in  the  next  species,  and  the  general  form 
more  elongated. 


IieOonte.] 


EHYInCHITIDJE.  9 


10.  R.  geratus  Say,  Cure.  5  ;  ed.  Lee.  i,  263.  Gyll.,  Sch.  Cure,  i,  216. 

Middle  and  Western  States.  Closely  related  to  the  preceding,  but  the 
color  is  coppery,  and  the  head  is  finely  granulated,  and  less  deeply  punc- 
tured ;  the  beak  is  also  longer  and  more  slender.  I  have  one  specimen  of 
a  dark  blue  color,  resembling  B.  cyanellus,  but  with  the  head  faintly 
punctured. 

Sub-fVimily  II.    PTEROCOLIDJE. 

A  single  species  constitutes  this  sub-family.  On  account  of  the  anomal- 
ous characters  its  place  in  the  series  of  Rhynchophora  has  been  changed  from 
time  to  time,  without  very  satisfactory  results.  The  latest  authoritj^  Lacor- 
daire,  deceived  bj^  the  broad  form  of  body,  and  ascending  side  pieces  of  the 
mesothorax  placed  it  in  the  neighborhood  of  Ceutorhynchus.  A  study  of 
the  mouth  organs,  as  well  as  the  antennae,  shows  that  it  is  allied  to  Auletes 
and  Rhynchites,  while  the  other  differences  require  it  to  be  received  as  a 
very  peculiar  and  distinct  type. 

It  differs  fi'om  the  genuine  Rhyncliitida3  by  the  antennse  inserted  much 
nearer  the  eyes,  w^hicli  are  suddenly  but  not  deeply  emai'ginate  in  front. 
The  side  margin  of  the  prothorax  is  acute  and  well  defined,  and  the  under 
surface,  with  the  anterior  part  of  the  mesothorax,  is  excavated,  forming  a 
large  cavity  for  the  reception  of  the  front  and  middle  legs.  The  elytra  are 
sculptured  with  wide  shallow  grooves,  which  are  confusedly  punctured  ; 
the  epipleurfe  are  distinct ;  the  tips  are  widely  dehiscent  and  separately 
rounded,  exposing  parts  of  three  dorsal  segments,  all  corneous  and  densely 
punctured.  Front  and  middle  coxae  small,  rounded,  widely  separated,  not 
prominent ;  posterior  coxae  separated,  transverse,  intercoxal  process  broad. 
Tibiae  with  two  distinct  apical  spurs,  tarsi  dilated,  claws  appendiculate. 
Ventral  segments  shoi"t ;  pygidium  less  convex  in  the  (^,  and  strongly  in- 
flexed.  Side  pieces  of  mesosternum  transverse,  solid,  ascending  between 
the  prothorax  and  elytra.     Side  pieces  of  metasternum  wide. 

PTEROCOLUS  Sch. 

1.  P.  ovatus  Gyll.,  Sch.  Cure,  i,  240  ;  Labram  &  ImhoflT,  Cure.  70  ; 
Attelabus  ovatus  Fabr.,  Syst.  El.  ii,  426  ;  Oliv.  Ent.  81,  11,  tab.  1,  f.  13  ; 
Apotomus  ovatus  Kirby,  Fauna  Bor.  Am.  iv,  205. 

Michigan  and  Massachusetts  to  Florida.  Easily  known  by  its  robust 
form  and  beautiful  blue  color. 

Family  III.     ATTELABID^. 

Mentum  very  transverse,  short,  trilobed,  supported  on  a  very  large  quad- 
rate gular  peduncle  ;  ligula  and  palpi  small. 

Maxillae  exposed,  lobes  small,  palpi  rigid,  4-jointed. 

Mandibles  flat,  pincer-shaped,  rather  stout,  toothed  on  the  inner  side. 

Antennae  inserted  rather  on  the  upper  surface  than  at  the  sides,  straight, 
11-jointed  ;  first  and  second  joints  stouter,  9 — 11  larger  forming  a  loose 
elongate  club  covered  with  sensitive  surface. 

PROC.  AMEK.  PHILOS.  SOC.  XV.  96.  B 


10  ATTELABID^. 


[IjeConte. 


Head  prominent,  not  deflexed,  eyes  oval,  finely  granulated,  not  promi- 
nent ;  beak  short  and  stout,  thicker  at  the  end  be3^ond  tiie  insertion  of  the 
antennae  ;  antennal  grooves  short  and  broad. 

Prothorax  truncate  before  and  behind,  convex  ;  prosternal  sutures  not 
distinct,  coxal  cavities  confluent,  rounded. 

Mesosternum  flat,  declivous,  triangular,  pointed  behind ;  side  pieces 
short  transverse,  diagonally  divided,  epimera  not  attaining  the  coxae. 

Metasternum  short,  side  pieces  wide. 

Elytra  not  covering  the  pygidium,  separately  rounded  at  tip  ;  epipleurje 
narrow  but  distinct ;  inner  surface  without  lateral  fold. 

Abdomen  with  five  short  ventral  segments  separated  by  deeply  impressed 
straight  sutures,  intercoxal  process  acute  ;  fifth  at  the  middle  very  short, 
being  compressed  by  the  inflexion  of  the  pygidium  ;  side  margin  not  acute 
nor  extended  upwards.  Dorsal  segments  convex,  almost  corneous.  Py- 
gidium small  corneous,  upper  margin  Avith  a  large  deep  marginal  groove. 

Anterior  coxoe  conical,  prominent,  contiguous  ;  middle  coxae  somewhat 
transverse,  and  a  little  prominent ;  hind  coxae  transverse,  nearly  contigu- 
ous. 

Legs  stout,  tibiae  seri'ate  on  the  inner  side,  armed  at  the  tip  with  two 
strong  hooks,  which  represent  the  spurs  in  the  two  preceding  families  ; 
tarsi  dilated,  brush-like  beneath  ;  third  joint  deeply  bilobed  ;  claws  con- 
nate at  base. 

A  family  containing  but  few  genera,  with  less  than  200  species,  distribu- 
ted mostly  in  the  tropics. 

ATTELABUS  Linn. 

The  species  of  this  genus  which  occur  in  our  fauna,  are  divided  by  Mr. 
Jekel  (Ins.  Saundersiana  ii,  186),  into  three  groups: 

I.  Glabrous  ;  front  thighs  less  thick,  not  toothed  :  hom/EOlabus. 
Blue  black  ;  prothorax,  neck,  elytra  and  abdomen  red .. .  1.  analis. 

II.  Glabrous,  front  femora  thick,  strongly  toothed  (in  (^) :    synolabus. 

Red;  legs  usually  black  or  dark 2.  nigripes. 

Black,  elytra  partly  red. 

Apical  angles  of  beak  not  prominent 3.  bipustulatus. 

"  acute,      "        4.  genalis. 

III.  Pubescent,  front  femora  not  toothed,  himatolabus.  5 .  rhois. 
1.  A.  analis  Illiger.,  Schneider's  Mag.  v,  616  ;  Gyll.,  Sch.  Cure,  i,  199  ; 

Harris,  Ins.  Inj.  Veg.  58  ;  A.  similis  Kirby,  Fauna  Bor.  Am.  iv,  204. 

i^.  Ventral  segments  with  two  rows  of  acute  tubercles ;  under  surface 
of  mouth  flat. 

9 .  Ventral  segments  not  tuberculate  ;  under  surface  of  mouth  with  two 
small  acute  teeth  projecting  downwards. 

Abundant  in  the  Atlantic  States.  With  a  large  series  of  specimens  be- 
fore me,  I  cannot  agree  with  Mr.  Jekel,  in  separating  A.  similis  as  distinct 
on  account  of  the  darker  color,  and  less  lustrous  elyti-a. 


JLeConte.] 


ATTELABID^.  11 


I  have  one  specimen  from  New  York  in  which  the  protliorax  is  very  dis- 
tinctly punctured,  but  it  does  not  otherwise  differ. 

2.  A.  nigripes  Lee,  Ann.  Lye.  Nat.  Hist.  (N.  Y.),  i,  171  ;  pi.  11,  f.  6  ; 
Gyll.,  Sch.  Cure,  i,  199. 

9  •  Front  thighs  unarmed. 

(^.  Front  thighs  strongly  toothed. 

Atlantic  States  to  Kansas  ;  abundant.  The  legs  are  usually  black  or 
dark  brown  ;  in  one  specimen  fi'om  Texas  (Belfrage),  they  are  of  the  same 
red  color  as  the  body.  In  other  specimens  the  head  prothorax  and  part  of 
the  under  surface  are  dark  brown. 

3.  A.  bipustulatus  Fabr.,  Mant.  229  ;  Syst.  El.  ii,  418  ;  Gyll.  Sch. 
Cure,  i,  201  ;  Harris,  Ins.  Inj.  Veg.  58. 

Atlantic  States,  not  rare.  The  front  thighs  are  armed  with  a  small  acute 
tooth  in  all  the  specimens  I  have  seen. 

4.  A.  genalis,  n.  sp. 

Of  the  same  form  and  size  as  A.  bipitstulatus,  bi^  with  the  apical  angles 
of  the  beak  acute,  and  projecting  laterally.  The  color  is  black,  not  blue, 
the  eh'tra  are  red  with  a  large  triangular  scutellar  spot,  and  a  large  apical 
blotch  black  ;  the  abdomen  is  red.     Length  3.2  mm's  ;  .125  inch. 

(^.  Front  thighs  armed  with  a  long  slender  tooth. 

9 .   Front  thighs  unarmed. 

New  Mexico.  The  species  in  our  fauna  resemble  each  other  in  form  and 
sculpture  to  such  an  extent,  that  I  have  not  thought  necessary  to  give  a 
more  detailed  description  of  this  very  distinct  species. 

5.  A.  rhois  Boh.,  Bull.  Mosc.  vi,  21 ;  Gyll.,  Sch.  Cure,  i,  202 ;  A.  pubes- 
eens  Say,  J.  Ac.  Nat.  Sc.  Phil,  v,  252  ;  ed.  Lee.  ii,  315. 

Lake  Superior  to  Virginia.     Not  rare  on  hazel  bushes . 
Attelahus  scutellaris  Say  does  not  belong  to  this  family,  and  is  the  type 
of  the  genus  PiazorMnus  Sch. 

Family  lY.    BYRSOPID^. 

Mentum  moderate  in  size,  trapezoidal,  wider  in  front,  concave  in  our 
species  ;  gular  peduncle  very  small ;  ligula  and  palpi  small. 

Maxillae  exposed,  small,  palpi  very  short. 

Mandibles  stout  and  short,  pincer  shaped,  without  apical  scar. 

Antennae  short,  inserted  in  front  of  the  eyes,  sub-geniculate  ;  scape  short, 
funiculus  7-jointed,  the  last  joint  wider  forming  part  of  the  club  in  Thece- 
sternus,  club  annulated,  oval,  pointed,  and  covered  with  sensitive  surface. 

Head  strongly  deflexed,  beak  short,  stout,  not  emarginate  at  tip,  separated 
from  the  head  beneath  by  a  strong  gular  constriction,  for  the  reception  of 
the  antennae.     Eyes  transverse  narrowed  beneath. 

Prothorax  rounded  in  front,  deeply  excavated  beneath  for  the  reception 
of  the  head  and  beak,  coxal  cavities  small,  confluent ;  prosternum  visible  in 
Thecesternus,  as  a  triangular  plate  in  front  of  the  coxae. 


12  BYRSOPID^. 


[LeConte. 


Meso-  and  metasternum  very  short,  side  pieces  of  the  latter  not  separate. 

Elytra  connate,  covering  tlie  pygidium. 

Abdomen  with  the  first  and  second  ventral  segments  very  large,  connate, 
the  suture  effaced  at  the  middle  ;  third  and  fourth  short,  fifth  as  long  as  third 
and  fourth  united  ;  sutures  straight,  very  deeply  impressed  ;  intercoxal 
process  broad.     Anal  segment  of  fj*  small,  rounded  at  tip. 

Anterior  coxae  small,  contiguous,  rounded  somewhat  prominent ;  middle 
coxa?  separated,  small,  rounded  ;  hind  coxoe  small,  oval,  widely  separated, 
distant  from  the  side  of  the  elytra. 

Legs  slender ;  tibiae  sinuate  on  inner  side,  truncate  at  tip,  and  armed 
on  the  inner  side  with  two  small  terminal  anchylosed  spurs.  Tarsi  4- 
jointed,  narrow,  joints  cylindrical,  setose  or  spinose  beneath.  Third  joint 
not  at  all  dilated  or  bilobed  in  Thecestenms.  Claws  slender,  simple,  sepa- 
rate. 

This  family  contains  but  a  small  number  of  genera,  all  confined  to  the 
Eastern  continent,  except  Theceaternus  which  is  restricted  to  the  interior 
parts  of  the  United  Sti^Jes,  extending  into  Texas  and  eastward  to  Illinois. 
It  forms  a  tribe  distinguished  from  other  Bj^-sopid*  by  the  peculiar  con- 
formation of  the  prosternum,  which  forms  a  triangular  plate  in  front  of  the 

COXfE. 

THECESTERNUS  Say. 

I  have  described  (Proc.  Acad.  Nat.  Sc,  1856,  18)  what  I  at  that  time 
believed  to  be  six  species  of  this  genus,  in  addition  to  the  one  described  by 
Say.  Subsequent  investigation  with  more  abundant  material  has  raised 
some  doubt  in  my  mind  as  to  the  validity  of  the  specific  differences  which 
I  then  observed. 

It  is  quite  evident  that  there  are  several  species,  but  it  is  found  quite  im- 
possible to  define  them.  There  are  all  gradations  from  specimens  {T.  hume- 
ralis)  in  which  the  humeral  processes  are  fully  one-third  as  long  as  the 
prothorax,  to  others  (T.  morMUonus)  in  which  the  elytra  are  truncate  at 
base,  and  the  humeral  angles  only  slightly  prolonged. 

It  may  be  regarded  therefore  as  a  genus  in  which  the  originally  distinct 
species  are  becoming  effaced  by  mixture. 

The  specimens  which  I  collected  in  Kansas  were  found  under  dried 
buffalo-dung.  I  have  since  received  several  individuals  from  Illinois, 
Texas,  and  Missouri ;  upon  one  of  the  latter  is  this  note,  made  by  Mr.  C. 
V.  Riley  :  "Cutting  oft'  blossoms  of  grapevines  in  May  ;  also  beaten  from 
Gary  a. ' ' 

Well  preserved  and  clean  specimens  are  mottled  with  a  pale  ochreous  crust 
composed  of  closely  adhering  minute  scales.  The  bibliography  is  as  follows : 

1.  T.  humeralis  Say,  Cure. 8  ;  ed.  Lee.  1  267;  Lacord.,  Gen.  Col.  pi.  67, 
f,  3 ;  Brachycerus  hitmer.  Say,  J.  Ac.  Nat.  Sc.  Phil,  v,  254 ;  ed.  Lee.  ii. 
316  ;  Litliodus  humer.  Germ.,  Sch.  Cure,  ii,  420  ;  Lee.  Pr.  Ac,  Nat.  Sc. 
1856,  18.  Varieties?  LWiodus  rectu.i,  affiiiis,  riidis,  eronts  Lee.  ibid,  18; 
longior  morbillosus  Lee.  ibid.,  19. 


Horn.]  OTIORHYlSrCHID^.  13 

Family  Y.     OTIORHYJ^CHID^. 

Mentum  variable,  sometimes  large,  filling  the  gular  emargination  and 
without  peduncle,  or  small  exposing  the  maxillaj  and  ligula  and  with  dis- 
tinct peduncle. 

Labial  palpi  very  rarely  visible  and  then  very  short. 

Mandibles  short,  stout,  pincer-like,  very  rarely  slightly  scissor-like,  and 
in  one  instance  {Dirotognathus)  slightly  laminiform  and  prominent.  Ante- 
rior face  with  a  distinct  sear  frequently  borne  at  the  tip  of  a  slight  process. 

Antennae  inserted  at  the  sides  or  top  of  rostrum  always  in  front  of  middle 
and  usually  near  the  tip,  geniculate,  11-jointed  (except  in  Agraplms),  the 
last  three  forming  a  compact  club  with  distinct  evidences  of  the  sutures. 

Head  moderately  prominent,  rarely  (Agasphcerops)  deeply  inserted  ; 
beak  variable,  never  long  and  slender.  Scrobes  well  defined,  except  in 
OtiorhyncMni,  and  receiving  the  first  joint  (scape)  of  the  antennae  in  repose. 

Prothorax  of  variable  form,  apex  usually  truncate;  rarely  slightly  pro- 
longed over  the  head,  base  truncate,  arcuate  or  bisinuate,  post  ocular  mar- 
gin either  truncate  or  with  ocular  lobe  more  or  less  developed,  sometimes 
with  stifl' fimbriae.     Antei'ior  coxs  contiguous  (except  in  Pancleletejus) . 

Mesosteruum  short,  oblique  or  horizontal,  rarely  (Goleocerus)  protuber- 
ant ;  middle  coxae  nari'owly  separated  ;  side  pieces  variable,  never  attaining 
the  coxal  cavity. 

Metasternum  variable,  short  in  Division  I,  usually  long  in  Division  II. 

Elytra  concealing  the  abdomen  entirely  from  above,  without  trace  of 
epipleurse  but  with  inflexed  fold  on  their  inner  side. 

Abdomen  with  five  ventral  segments,  the  first  two  connate,  the  others 
free.     Intercoxal  process  variable. 

Legs  moderate  ;  femora  very  rarely  decidedly  clavate ;  tibiae  straight  or 
feebly  arcuate,  usually  mucronate  at  tip  and  rarely  with  small  spur-like 
processes  (certain  OtiorhyncMni).  Claws  fixed  or  moveable,  always  simple, 
never  toothed. 

The  males  of  all  the  species  have  the  pygidium  divided,  so  that  there  are 
eight  dorsal  segments,  while  in  the  female  there  are  but  seven. 

This  family  contains  all  those  genera  in  which  the  mandibles  are  provided 
in  the  pupa  stage  with  a  deciduous  piece  of  varying  form,  usually  elongate 
and  slender,  sometimes  falcate  and  acute  or  short  and  conical.  In  the  early 
life  of  the  imago  these  pieces  are  lost  (although  specimens  occur  in  which 
one,  sometimes  both  are  preserved),  and  the  place  of  their  attachment  is  in- 
dicated by  a  scar  which  is  usually  on  the  face  of  the  mandible  but  frequently 
borne  at  the  tip  of  a  process  of  varying  length.  The  form  of  the  mandible 
itself  without  reference  to  the  scar,  indicates  the  occurrence  of  the  decidu- 
ous piece.  When  the  mandibles  are  acute  at  tip  and  one  overlaps  the 
other  by  an  edge  more  or  less  acute,  no  deciduous  piece  can  be  expected. 
Its  occurrence  may  always  be  looked  for  in  those  in  which  the  mandibles 
meet  with  a  broad  surface  and  whose  function  is  rather  that  of  crushing 
than  cutting,    Bracliycerus,  Sitones,  Alo;phus  aJid  all  the  MecorhyncM  are 


14  OTIORHYXCHID^. 


[Horn. 


instances  of  the  former,  while   CypJiiis,  Entimus,   Leptops,    Ophryastes, 
Tanymecus,  etc.,  illustrate  the  latter  form. 

The  family  OtiorhynchicliB  as  defined  by  Dr.  Leconte  (American  Natu- 
ralist, 1874,  p.  396),  has  but  little  to  do  with  the  tribe  of  the  same  name  as 
restricted  by  Lacordaire  (Genera  vi,  pjj.  20  and  144),  as  it  includes  not 
only  the  greater  portion  of  the  Adelognathes,  but  also  several  tribes  of 
Phanerognathes  in  the  system  of  the  latter  author. 

In  examining  the  under  side  of  the  body  two  forms  of  construction  are 
found,  by  means  of  which  this  large  family  may  be  divided  into  two 
primary  sections. 

First.  Side  pieces  of  mesosternum  very  unequal,  the  episternum 
larger  and  attaining  the  elytral  margin,  epimeron  usually  small, 
sometimes  very  small.  Metasternal  side  pieces  never  very  wide, 
generally  very  narrow  or  entirely  concealed  by  the  elytral  margin, 
anterior  end  never  broadly  dilated  on  both  sides. 

Second.  Side  pieces  of  mesosternum  diagonally  divided  and  equal 
or  very  nearly  so,  episternum  distant  from  the  elytral  margin,  sepa- 
rated by  the  epimeron.  Metasternal  side  piece  moderately  wide, 
dilated  at  its  anterior  end  with  an  acute  process  of  greater  or  less  ex- 
tent projecting  inwards  between  the  mesosternal  epimeron  and  the 
body  of  the  metasternum. 

The  accompanying  wood  cuts  have  been  drawn  natural  size  from 
(1)  Eupagoderes  speciosus  Lee,  and  (3)  Hippoleptops  tribulus  Fab., 
the  latter  from  a  specimen  kindly  sent  by  Mr.  H.  Jekel,  which 
although  foreign  (New  Holland),  was  of  sufficiently  large  size  to  allow  of 
the  drawing  being  made  natural  size.  In  the  cut  the  mesosternal  epimeron 
is  left  entirely  black  that  its  position  as  well  as  the  form  of  the  adjacent 
parts,  might  be  rendered  more  evident. 

An  examination  of  the  foreign  genera  in  the  cabinet  of  the  Academy  of 
Nat.  Sc,  Phila.,  shows  that  the  use  of  the  above  characters  may  be  extend- 
ed to  genera  not  represented  in  our  fauna,  and  by  means  of  them  foreign 
genera,  evidently  allied,  maj"-  be  brought  in  much  closer  proximity  than  by 
the  system  adopted  by  Lacordaire. 

No  genus  in  our  fauna  presents  any  extraordinary  or  anomalous  charac- 
ters. It  may  be  remarked  that  no  native  species  yet  known  is  provided 
with  any  femoral  armature,  and  all  our  genera  with  the  exception  of 
Agraphus  have  seven  joints  in  the  funicle  of  the  antennae 

By  reference  to  the  synoptic  tables,  the  extent  of  variation  in  other  por- 
tions of  the  body  may  be  ascertained. 

In  consequence  of  the  definition  of  the  present  family  by  the  presence  of 
the  mandibular  scar,  the  primary  characters  made  use  of  by  Lacordaire  sink 
into  even  less  than  secondary  importance,  and  as  we  have  in  the  tenebri- 
ONiD^E  parallel  series  each  with  genera  of  maximum  and  minimum  develop- 
ment of  mentum,  so  we  have  in  the  EhyricJiophora  similar  parallels  in  the 
two  divisions  above  indicated. 

In  taking  the  structure  of  the  sternal  side-pieces  as  a  primary  means  of 


Horn.] 


OTIORHYIfCHID^.  15 


dividing  this  family,  I  have  found  that  genera  are  thereby  approximated 
Avhicli  are  now  widely  separated,  and  of  which  the  best  authorities  on  the 
subject  since  Lacordaire  acknowledge  the  afflnities.  I  might  cite  Leptops 
and  Entiiaus  in  their  approximation  to  Gyphus  and  Bhigus,  the  separation 
of  Brachystylus  from  the  Otiorhynchi  and  its  position  near  Cyphus  as  well  as 
Artipus  from  its  present  very  unnatural  position  to  a  place  near  Cyphus. 
The  character  is  therefore  suggested  as  a  better  method  of  subdivision, 
although  it  is  not  claimed  that  it  will  in  all  cases  be  found  infallible.  A 
very  limited  study  of  the  Rhynchophora  will  soon  produce  a  conviction 
that  there  is  on  the  one  hand  a  great  permanency  of  type  of  construction, 
and  when  variation  of  detail  does  occur,  it  is  so  gradual  as  to  leave  no 
abrupt  lines  of  division. 

DIVISION    I. 

This  division  contains  those  genera  in  which  the  mesosternal  epimera  are 
small,  or  at  most  moderate,  the  episterna  in  contact  with  the  elytral  margin, 
the  metasternal  side-pieces  rarely  of  more  than  moderate  width  and  not 
dilated  at  anterior  end,  and  without  the  triangular  process  projecting 
between  the  mes-epimera  and  the  metasternum.  The  other  characters  of 
the  division  are  extremely  variable,  in  all,  however,  the  antennoe  are  strongly 
geniculate.  All  the  genera  of  this  Division  in  our  fauna  have  a  large  men- 
tum  concealing  entirely  the  maxillae,  excepting  in  the  last  tribe. 

The  following  tribes  are  represented  in  our  fauna  : 
Thorax  without  ocular  lobes. 

Antennal  grooves    (scrobes)   lateral   directed 

inferiorly bbachy»ERIMI. 

Antennal  grooves  short,  superior,  rarely  late- 
ral, and  then  directed  toward  the  eyes  OTiORHYBfCHIKI. 

Thorax  with  ocular  lobes  more  or  less  distinct. 
Mentum  at  least  moderate,  concealing  in  great 
part  or  entirely  the  maxillae.     Mandibles  ro- 
bust not  prominent,  scar  very  evident ophryastini. 

Mentum  very  small,  maxillae  exposed,  mandi- 
bles prominent,    free  edge  rather  thin,  scar 

small,  very  narrow DiROroGMATHlNl. 

As  will  be  seen  by  the  above  table  thQ  presence  or  absence  of  ocular 
lobes  affords  the  only  means  of  separating  the  tribes  Brachyderini  and 
Ophryastini,  and  the  character  must  be  strictly  interpreted.  The  latter 
tribe  has  the  ocular  lobes  sometimes  very  feeble  and  almost  wanting,  but 
as  the  lobes  disappear  the  fimbriae  become  more  evident.  In  the  former 
tribe  there  are  no  evidences  whatever  of  either  ocular  lobes  or  fimbria;.  In 
one  genus,  the  prosternum  is  more  emarginate  than  usual,  giving  an 
appearance  of  slight  ocular  lobes,  but  no  traces  whatever  of  fimbriae  are 
seen.  In  some  of  the  genera  of  Ophryastini,  the  metasternal  side  pieces 
become  of  moderate  width,  showing  somewhat  of  an  approximation  to  the 


16 


OTIOEHYNCHID^.  [Horn. 


genera  of  the  second  division.     The  side  pieces  in  the  other  two  tribes  are 
very  narrow  and  the  sutures  nearly  always  obliterated. 

Tribe  I.    brachyi>erini. 

Rostrum  at  least  as  long  as  the  head  and  slightly  dilated  at  tip,  which  is 
more  or  less  emarginate.  Front  flat,  rarely  with  a  slight  depression 
between  the  eyes.  Scrobes  moderately  deep,  usually  distinctly  limited  and 
very  oblique.  Antennne  moderate,  scape  attaining  the  eyes  rarely  (  Trigo- 
noscuta)  passing  them.  Thorax  without  ocular  lobes  or  fimbriae  and  not 
or  very  feebly  emarginate  beneath.  Scutellum  usually  distinct.  Elytra 
oval,  not  wider  than  the  thorax.  Mesosternal  epimeron  small,  episternum 
attaining  the  elytra.  Episternum  of  metasternum  narrow  suture  usually 
distinct  in  its  entire  length.  Abdomen  with  the  first  two  segments  (except 
in  Gr.  iv),  separated  by  an  arcuate  suture,  segments  3-4  short,  conjointly 
not  or  but  little  longer  than  the  second. 

As  thus  constituted,  tlie  tribe  is  widely  different  from  that  defined  by 
Lacordaire  under  the  same  name.  From  it  those  genera  have  been  re- 
moved in  which  the  mesosternal  side  pieces  are  diagonally  divided  and  the 
metasternal  episterna  moderately  wide  and  dilated  in  front.  These  form 
tribes  in  the  next  division.  It  is,  however,  extremely  difficult  to  fix  tribal 
limits  with  any  degree  of  certainty,  as  every  character  upon  which  classifi- 
cation has  been  based,  exhibits  a  degree  of  variability  ailmost  unparalleled 
in  any  otiier  series  of  Ooleoptera.  The  ocular  lobes  of  the  thorax  especially 
exhibit  this  tendency,  and  the  pointed  outline  of  the  eye  which  usually 
accompanies  the  lobe  is  by  no  means  in  better  condition.  The  eye  may  be 
more  nearly  circular  in  outline  with  a  lobe  than  it  is  without  the  lobe. 

As  thus  constituted,  the  ti'ibe  contains  the  following  groups  : 

Third  joint  of  all  the  tarsi  wider  than  the  second  and  deeply  bilobed. 
Tibite  normal,  not  dilated  at  tip.     Scape  not  passing  the  eyes. 

Posterior  coxa3  small,  very  widely  separated Blinyomerl. 

Posterior  coxaj  normal  intercoxal  process  triangu- 
lar or  oval. 
Antennae  scaly,  body  beneath  densely  scaly.    Elytra 

emarginate  at  base,  thorax  closely  aj^plied Epicacrl. 

Antenna;  shining,     sparsely  hairy,  body  beneath 
nearly  naked. 
Tips  of  hind  tibiae  feebly  cavernous,  a  double  row 

of  spinules.     First  abdominal  suture  arcuate...  Barynoti. 

Tips  of  hind  tiba;  open,  a  single  row  of  spinules. 

First  abdominal  suture  straight  or  nearly  so  ..  Hormorl. 

Anterior  tibi*  dilated  at  tip  ;  scape  long,  passing  the 

eyes Trigonoscutie. 

Third  joint  of  tarsi  not  wider  than  second,  and  feebly 
emarginate Calyptiiii. 


Horn.]  BRACHYDERINI.  17 

Group  I.      91inyonieri. 

Rostrum  stout,  cylindrical,  as  long  as  the  head,  and  very  little  narrowed 
to  the  tip.  Scrobes  deep,  well  defined,  suddenly  arcuate  in  front,  gradually 
wider  behind  and  passing  beneath  the  eyes.  Mesosternal  side  pieces 
unequal.  Metasternal  episternum  linear,  suture  distinct.  Intercoxal  pro- 
cess very  broad  and  very  short.  Hind  coxae  very  small.  Corbels  of  hind 
tibiiB  open,  tarsal  claws  free. 

The  form  of  the  head,  rostrum  and  scrobes  resembles  considerably  that  of 
Pandeletejus  of  the  Second  Division,  but  the  structure  of  the  sternal  side 
pieces  excludes  the  present  genus  from  any  such  association.  According  to 
the  system  adopted  by  Lacordaire,  this  genus  would  be  placed  in  the 
Brachyderides  vrais. 

MINYOMERUS  n.  g. 

Rostrum  as  long  as  the  head,  continuous  with  it  and  but  slightly 
narrowed  toward  the  tip,  robust,  slightly  arcuate,  feebly  emarginate  at  tip. 
Head  feebly  ti'ansversely  impressed  behind  the  eyes,  which  are  small, 
round  and  coarsely  granulated,  convex,  but  not  prominent,  scrobes  mode- 
rately well  defined,  deep  and  suddenly  flexed  in  front,  gradually  broader 
behind  and  passing  beneath  the  eyes.  Antennae  moderate  ;  scape  slender 
gradually  clavate,  slightly  passing  the  middle  of  the  eye  ;  funicle  7-jointed. 
first  two  joints  longer,  the  first  longer  than  the  second  and  stouter,  3-7 
short  and  feeblj^  broader  externally  ;  club  elongate,  oval,  pointed.  Thorax 
cylindrical,  truncate  at  apex  and  base,  without  trace  of  ocular  lobes  or 
fimbriae.  Scutellum  invisible.  Elytra  oblong  oval,  base  truncate  at  middle, 
humeri  broadly  rounded.  Middle  coxie  moderately  separated.  Mesoster- 
nal side  pieces  unequally  divided,  elytra  and  episterna  contiguous.  Me- 
tasternal episternum  very  narrow,  linear,  suture  distinct.  Metasternum 
short.  Posterior  coxae  small,  very  widely  distant.  Intercoxal  pro- 
cess very  short.  Second  abdominal  segment  as  long  as  the  two  following 
united,  separated  from  the  first  by  a  suture  arcuate  at  middle.  Front  and 
middle  tibite  feebly  mucronate  at  tip,  corbels  of  hind  tibi;B  open.  Tarsi 
with  coarse  hairs  beneath,  third  joint  feebly  bilobed.  Claws  free.  Body 
densely  scaly. 

The  feeble  transverse  impression  of  the  h^ead  behind  the  eyes  is  a  charac- 
ter of  extremely  rare  occurrence,  which  is  found  also  in  Proictes,  Sch. 
Some  relationship  might  be  expected  between  the  two  genera.  I  have  not 
been  able  to  inspect  many  of  the  genei'a  belonging  to  the  group  Bracliyde- 
rides  vrais,  but  from  those  seen,  I  am  inclined  to  think  that  nearly  all 
should  be  referred  to  the  Second  Division  of  this  memoir. 

Two  species  are  known  to  me  : 

Thorax    slightly  broader    than    long,    sides    moderately 

ai'cuate innocuus. 

Thorax  as  long  as  wide,  slightly  narrower  behind languidus. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  C 


IS  OTIORHYNCHID^.  [Horn. 

M.  innocuus,  n.  sp. 

Form  oblong  oval,  moderately  densely  scaly.  Head  and  rostrum  as  long 
as  the  thorax,  densely  scaly  and  with  very  short  erect  hairs.  Rostrum 
emarginate  at  tip  and  with  small  triangular  depressed  space  ;  slightly 
swollen  in  front  of  the  eyes.  Occiput  with  transverse  impression.  Thorax 
broader  than  long,  sides  moderately  arcuate,  disc  moderately  convex,  sur- 
face rugoso-punctate,  sparsely  scaly  and  with  few  short  erect  hairs.  Elytra 
oblong  oval,  with  rows  of  coarse  shalloAV  punctures  closely  placed,  in- 
tervals feebly  convex  and  at  base  feebly  alternating  ;  surface  densely  scaly 
and  with  indument,  intervals  with  a  row  of  very  indistinct  erect  scale-like 
hairs.  Body  beneath  densely  scaly.  Legs  densely  scaly  and  with  sparsely 
placed  short  erect  setae.     Length  .14  inch  ;  3.5  mm.* 

The  scales  are  of  a  greyish  or  cinereous  color,  those  of  the  thorax 
darker. 

One  spe:imen,  Colorado. 

M.  languidus,  n.  sp.  i 

Form  elongate  oval,  surface  densely  covered  with  cinereous  scales.  Head 
and  rostrum  as  long  as  the  thorax.  Head  transversely  impressed  behind 
the  eyes.  Rostrum  feebly  emarginate  at  tip  and  with  slight  oval  smooth 
space,  surface  densely  scaly  and  with  few  short  scale-like  hairs.  Thorax 
slightly  longer  than  wide  cylindrical,  base  narroM'er  than  the  apex,  sides 
nearly  straight,  apex  and  base  truncate,  disc  regularly  convex,  coarsely, 
deeply  and  densely  punctured,  and  with  a  slight  median  line.  Elytra 
oblong  oval,  disc  obsoletely  striate,  striie  with  rather  large,  closely  placed 
punctures,  intervals  slightly  convex,  densely  scaly  and  each  with  a  single 
row  of  very  short  scale  like  hairs.  Body  beneath  and  legs  as  in  the  pre- 
ceding species.     Length  .14  inch  ;  3.5  mm. 

Two  specimens,  Arizona  and  Fort  Tejon,  Cal. 

In  both  species  the  deciduous  piece  has  left  a  very  inconspicuous  scar, 
transversely  oval  in  form  and  not  prominent  as  in  several  of  the  following 
groups.  I  have  not  seen  specimens  with  the  pieces  remaining.  The  men- 
turn  fills  completely  the  gular  emargination  which  is  nearly  semicircular  in 
form.  The  gense  are  notched  opposite  the  bases  of  the  mandibles.  The 
distance  between  the  posterior  coxae  is  equal  to  the  length  of  the  first  two 
abdominal  segments,  and  the  coxae  are  not  larger  than  those  of  the  middle 
pair. 

Group  II.     Eplcaeri. 

The  species  composing  this  group  are  more  or  less  pyriform,  the  body 
above  and  beneath  densely  scaly,  the  elytra  of  a  pale-brownish  or  luteons 
color  with  the  tip  and  two  sinuous  bands  much  paler.  The  rostrum  is 
rather  stout,  usually  longer  than  the  head,  the  scrobes  deep,  well  defined, 

*  The  measurements  here  given  as  well  as  all  to  follow  in  the  present  paper, 
are  taken  from  the  apical  thoracic  margin  to  tlie  tip  of  the  elytra,  as  this  is 
m.ore  certain  and  invariable  than  if  the  measurements  are  taken  from  the  tip 
of  the  beak,  which  varies  in  length. 


Horn.]  BKACHYDIiiEINI.  19 

and  rapidly  descending.    The  supports  of  the  deciduous  pieces  of  tlie  man- 
dibles are  moderately  or  very  prominent. 

The  genera  knoM^n  to   occur  in  our  fauna  may  be  recognised  by  tlie 
following  table  : 
Articular  face  of  hind  tibiae  glabrous,  support 
of  deciduous  piece  moderately  prominent. 
Antennae  stout,  last  joint  of  funicle  short 
broad,  and  very  close  to  the  club.  Joints 

1-2  of  tarsi,  glabrous GRAPHORHINUS. 

Antennae  more  slender,   joints  of  funicle 
conical,  the  last  distant  from  the  club. 

Tarsi  pubescent EPICJERUS. 

Articular  face  of  hind  tibiae  scaly.  Support 
of  deciduous  piece  very  prominent.  An- 
tennae rather  slender,  club  distinct ANOMADUS. 

The  deciduous  pieces  of  the  mandibles  are  shown  in  one  species  of 
EpicoBrus.  They  are  falciform,  moderately  robust,  obtusely  pointed,  with 
the  upper  inner  side  concave,  smooth  and  shining. 

GRAPHORHINUS  Sch. 

GrapJiorMnus  Schonherr,  Gen.  Cure,  i,  p.  510  ;  indicated  but  not  de- 
scribed by  Say. 

This  genus  has  all  the  essential  characters  of  Epiccerus,  and  differs  only 
in  the  following  particulars  : 

Antennae  shorter,  scape  slightly  clavate,  attaining  the  eyes,  funicle 
7-jointed,  first  two  joints  slightly  larger  than  the  otliers,  3-6  as  broad  as 
long,  the  seventh  broader  than  long,  and  in  close  proximity  to  the  club, . 
the  latter  broadly  oval  and  pointed  at  tip.  Eyes  nearly  round,  slightly 
transverse.  Cotyloid  cavities  of  hind  tibiae  terminal  {corbeilles  ouvertes) 
and  glabrous,  tarsi  beneath  glabrous  slightly  fimbriate  near  the  tips. 

By  the  above  characters  it  will  be  seen  that  the  genus  differs  from 
Epicmrus  in  the  form  of  the  antennae,  the  form  of  the  posterior  cotyloid 
cavities  and  the  vestiture  of  the  tarsi.  The  species  below  being  the  type  of 
the  genus,  and  as  it  diifers  in  several  particulars  from  the  Grapliorliinus  as 
described  by  Lacordaire  from  other  species,  these  should  constitute  another 
genus  differing  in  the  form  of  the  antennas  and  the  vestiture  of  the  tarsi. 

G.  vadosvis  Say,  Curcul.  p.  8 ;  Am.  Ent.,  p.  267 ;  Gyll.  Schonh. 
Gen.  Cure,  i,  p.  511. 

Body  pyriform  robust.  Rostrum  robust,  quadrangular,  slightly  longer 
than  the  head,  tip  feebly  emarginate  and  with  a  smooth  triangular  space 
limited  behind  by  a  chevron-lilve  ridge  behind  which  is  a  groove,  above 
trisulcate  and  a  moderately  deep  transverse  impression  between  the  eyes, 
median  sulcus  broad,  lateral  sulci  short  but  deeper  ;  surface  densely  clothed 
with  cinereous  scales  and  sparsely  punctured.  Thorax  slightly  broader  at 
base  than  long,  sides  arcuate  converging  to  the  apex,  which  is  truncate,. 


20  OTIORHYXCHID.E. 


[Horn. 


base  ai'cuate;  median  line  distinct,  surface  coarsely  punctured  and  irregular, 
densely  clothed  with  cinereous  scales.  Elytra  broadl}^  oval,  very  curved, 
slightly  broader  at  base  than  the  thorax,  indistinctly  striate,  striai  with 
moderately  coarse  punctures,  intervals  alternately  more  convex,  subcosti- 
form,  surface  densely  scaly,  scales  cinereous  with  a  narrow  triangular  basal 
space,  submedian  and  subapical  transverse  bisinuous  fascia  of  darker  color. 
Body  beneath  coarsely  but  sparsely  punctured,  densely  scaly.  Legs 
densely  scaly.     Tarsi  glabrous  beneath.     Length  .28-38  inch  ;  7-10  mm. 

This  species  has  the  same  style  of  coloration  as  is  seen  in  Epiccerus,  but 
the  darker  elytral  fasciae  are  at  times  absent. 

Occurs  in  Kansas  and  Texas,  and  is  not  rare. 

EPICJERUS  Sch. 

Epicmrus  Schonherr,  Gen.  Cure,  ii,  p.  323. 

Rostrum  as  long  or  slightly  longer  than  the  head,  and  nearly  as  broad, 
parallel,  feebly  canaliculate  along  the  middle,  tip  feebly  emarginate  and 
with  a  triangular  smooth  space  limited  by  an  arcuate  groove.  Scrobes 
moderately  deep,  well  defined,  passing  immediately  beneath  the  eye  and 
moderately  arcuate.  Ej^cs  slightly  longitudinally  oval.  Antennaj  mode- 
rately long,  scape  gradually  clavate,  attaining  nearly  the  middle  of  the  eye; 
funicle  7-jointed,  joints  obconical,  1-2  moderately  elongate,  3-4-5  nearly 
equal,  6-7  very  slightly  longer  than  last,  not  close  to  the  mass  which  is 
elongate  oval.  Thorax  variable,  conical  or  cylindrical  and  narrowed  in 
front.  Scutellum  very  small.  Elytra  oval,  broadly  but  feebly  emarginate 
at  base.  Legs  moderate.  Tarsi  spongy  pubescent  beneath.  Body  pyri- 
form  or  elongate,  densely  scaly.  Cotyloid  cavities  of  hind  tibise  internal, 
glabrous,  tip  of  tibise  truncate.  First  suture  of  abdomen  arcuate  at 
middle. 

Two  species  of  Epicserus  occur  in  our  fauna. 

Thorax  not  wider  at  base  than  at  middle,  form  more 
or  less  elongate,  narrowed  at  middle imbrieatus. 

Thorax  conical  widest  at  base,  body  pyriform formidolosiis. 

E.  imbrieatus  Say,  Journ.  Acad.  1824,  p.  317  ;  Germ.  Sch.  Gen. 
Cure,  ii,  p.  267  ;  Bohem.  Sch.  Gen.  Cure,  vi,  2,  p.  280. 

Form  variable.  Rostrum  feebly  sulcate  at  middle  and  with  a  slight  pre- 
ocular  impression,  surface  sparsely  punctured  densely  scaly.  Vertex  with 
impressed  puncture.  Thorax  cylindrical  narrowed  at  anterior  third,  sur- 
face with  deeply  impressed  punctures  in  great  part  concealed  by  densely 
placed  scales,  cinereous  along,  the  middle,  darker  at  the  sides.  Elytra  not 
striate  but  (when  denuded)  Avith  rows  of  large  deep  punctures,  surface 
densely  scaly,  color  cinereous,  with  basal  space,  submedian  irregular,  and 
subapical  sinuous  fasciae  darker  in  color.  Body  beneath  and  legs  densely 
scaly,  scales  nearly  white.     Length  .30-. 46  inch  ;  7.5-11.5  mm. 

This  species  occurs  in  every  portion  of  our  territory  east  of  the  Rocky 
Mountains  and  south  and  west  of  Pennsylvania,  and  exhibits  a  very  great 
variation  in   form   and  coloration.     The  elytra  may  be  elongate  oval  or 


liorn. I 


BKACHYDERIN^r.  21 


broadly  oval,  and  the  tip  vertical  or  inflexed,  sometimes  compressed,  like 
the  prow  of  a  vessel.  In  color  the  surface  may  vary  to  entire  cinereous  or 
even  in  great  part  fuscous. 

E.  formidolosus  Boh.  Schon.  Gen.  Cure,  vi,  2,  p.  284. 

Body  ovate.  Rostrum  feeijly  sulcate  at  middle,  pre-ocular  impressions 
A^ery  faint,  vertex  with  impressed  puncture  ;  surface  sparsely  punctured  and 
densely  clothed  with  pale  cinereous  scales.  Thorax  conical,  sides  feebly 
arcuate,  shorter  than  broad  at  base,  surface  sparsely  punctured,  densely 
scaly.  Elytra  broadly  oval,  sub-inflated,  but  little  longer  than  -wide,  with 
rows  of  moderate  punctures  not  closely  placed,  surface  densely  scaly  with 
very  short  semi-erect  scale-like  hairs  in  the  intervals.  Body  beneath  and 
legs  densely  scaly.     Length  .16-26  inch  ;  4-6.5  mm. 

The  depth  of  the  median  rostral  groove  varies  greatly  in  the  specimens 
before  me.  The  elytra  continue  very  nearly  in  their  curve  the  line  of  the 
sides  of  the  thorax,  and  their  color  above  is  almost  precisely  that  of  the 
preceding  species.  Two  specimens  before  me  are  totally  cinereous,  and 
two  others  fasciate.  The  erect  scale-like  hairs  of  the  intervals  while  very 
distinct  in  the  present  species,  are  very  indistinct  in  the  preceding,  so  thai 
no  special  mention  is  made  of  them. 

The  specimens  before  me  are  from  Georgia  and  Florida, 

ANOMADUS  n.  g. 

Rostrum  as  long  as  the  head  and  not  narrower,  sub-cylindrical,  slightly 
dilated  at  tip  ;  tip  triangularly  emarginate  and  witli  a  smooth  space.  Scrobes 
deep,  arcuate,  passing  slightly  in  front  of  the  eye.  Antennai  sub-terminal, 
long  ;  scape  gradually  clavate  ;  funicle  7-jointed,  joints  1-2  moderately 
long,  nearly  equal,  joints  3-6  short,  equal,  joint  7  slightly  longer  and 
distant  from  the  club  which  is  elongate  oval.  Ej^es  oval,  slightly  longitu 
dinal.  Thorax  cylindrical,  sides  moderately  arcuate.  Scutellum  very 
small.  Elytra  regularly  oval,  conjointly  emarginate  at  base,  not  wider 
than  the  thorax,  humeri  rectangular.  Legs  moderate,  femora  slightly 
clavate,  tibiae  straight.  Cotyloid  cavities  of  hind  tibite  internal,  scaly,  tip 
of  tibia  truncate. 

The  supports  of  the  deciduous  mandibular  pieces  are  much  more  promi- 
nent in  this  than  in  any  other  genus  in  the  tribe.  Following  the  system  of 
Lacordaire  one  would  be  compelled  to  call  this  genus  Artijnts.  This  latter 
cannot  however  be  placed  in  the  present  "tribe,  or  even  in  this  first  division 
as  the  form  of  the  meso-  and  metasternal  side  pieces  agree  with  the  genera 
allied  to  Cyphus  as  will  be  seen  further  on. 

A.  obliquus,  n.  sp. 

Body  oblong,  narrower  at  middle.  Rostrum  very  sparsely  punctured, 
densely  clothed  with  scales  of  pearly  lustre,  darker  at  the  sides,  with  few 
erect  scale-like  hairs.  Thorax  slightly  longer  than  wide,  moderately  convex, 
cylindrical,  truncate  at  apex  and  base,  sides  arcuate,  surface  coarsely  but 
sparsely  punctured  densely  scaly,  at  middle  pearly,  at  sides  fuscous.  Elytra 


22  OTIOKIIYNCIIID^.  [Horn. 

regularly  oval,  convex,  with  rows  of  moderate  punctures  not  closely  placed, 
surface  densely  scaly  with  short  setts  distantly  placed  in  the  intervals, 
scales  pale  cinereous  with  a  common  basal  triangular  space  as  long  as  wide, 
a  very  oblique  fascia  extending  from  behind  the  humeri  to  the  suture,  and 
an  indistinct  transverse  sub  apical  fascia  all  fuscous.  Body  beneath  and 
legs  densely  clothed  with  pearly  scales  with  short  seta?  sparsely  interspersed. 
Length  .20  inch  ;  5  mm. 

This  insect  reproduces  exactly  the  form  or  coloration  of  some  of  the 
smaller  specimens  of  Epiccerus  imbricatus. 

One  specimen  from  the  Peninsula  of  Lower  California, 

Group   III.     Barynotl. 

Rostrum  moderately  stout,  longer  and  slightly  narrower  than  the  head, 
sub-cylindrical,  slightly  dilated  at  tip  which  is  slightly  notched,  upper  side 
finely  sulcate.  Scrobes  deep,  slightly  arcuate  passing  immediately  beneath 
the  eyes,  which  are  large,  oval,  and  slightly  oblique.  Scape  slightly  clavate, 
attaining  the  middle  of  the  eye,  surface  glabrous  and  slightly  ciliate  ;  funi- 
cle  7-jointed,  joints  1-2  longer,  joint  3  conical,  4-7  rounded,  club  elongate 
oval.  Thorax  subquadrate,  slightly  narrower  in  front,  apex  truncate,  base 
slightly  arcuate.  Scutellum  small.  Elytra  moderately  oval,  convex,  base 
broadly  emarginate  and  slightly  wider  than  the  thorax,  humeral  angles  dis- 
tinct in  front.  Thighs  moderately  clavate,  anterior  tibii«  slightly  arcuate, 
middle  and  posterior  slightly  dilated  at  tip,  all  slightly  mucronate.  Hind 
tibiaj  with  a  double  row  of  fimbri*  surrounding  an  oval  smooth  space  (cor- 
beilles  caverneuses).     Tarsi  moderately  dilated,  pubescent  beneath,  claws 

free. 

BARYNOTUS  Germ. 

Barynoius  Germ.  Ins.  Spec.  Nov.  p.  337. 

This  genus  alone  represents  this  group  in  our  fauna  containing  one  spe 
cies  which  occurs  also  in  Europe. 

B.  Sehoenherri  Zetterst.  Ins.  Lapp.  I,  p.  187  ;  Bohem.  Schon.  Gen. 
Cure,  vi,  2,  p.  250. 

Upad  and  rostrum  as  long  as  the  thorax,  rather  coarsely  and  deeply  but 
sparsely  punctured,  sparsely  pubescent  at  sides  and  tip.  Thorax  sub-quad- 
rate, sides  behind  parallel,  anterior  third  convergent,  apex  truncate,  base 
broadly  arcuate  ;  surface  moderately  deeply  punctured,  punctures  mode- 
rately coarse  with  finer  punctures  in  between,  at  sides  punctures  coarser 
and  deeply  circumvallate  ;  median  line  finely  impressed  ;  surface  sparsely 
clothed  with  pearly  scales.  Elytra  slightly  broader  at  base  than  thorax 
oval,  moderately  convex,  base  broadly  emarginate,  surface  clothed  with 
scales  of  pearly  lustre  with  intermixture  of  cupreous  and  greenish  scales, 
and  with  rows  of  moderately  coarse  punctures  ;  intervals  alternately  slightly 
more  convex  and  (where  denuded)  moderately  densely  puuctulate.  Body 
beneath  coarsel3^  densely  aud  deeply  punctured  and  sparsely  pubescent, 
the  pubescence  denser  on  the  metasternal  side  pieces.  Legs  black  sparsely 
punctured.     Length  .33  inch  ;  8.25  mm. 


Horn.] 


BRACHYDEEINI.  23 


One  specimen  from  the  south  of  Newfoundland  given  to  Dr.  LeConte 
by  M.  Putzeys,  of  Brussels.  The  specimen  is  nearly  entirely  deprived  of 
scales  and  black. 

Group  IV       Horinori. 

Rostrum  longer  and  narrower  than  the  head,  subcylindrical  at  base, 
broader  at  tip,  aloe  moderately  divergent,  apex  emarginate  and  with  a  V 
shaped  elevated  line,  median  line  distinctly  impressed.  Scrobes  deep  in 
front,  and  moderately  arcuate,  posteriorly  feebly  marked  and  directed  be- 
neath {Hormorus)  or  toward  the  lower  border  of  the  eye  {Agasphmrops). 
Antennoe  moderately  long,  attaining  the  middle  of  the  eye  in  the  former 
and  barely  reaching  the  eye  in  the  latter.  Eyes  moderately  or  very  promi 
nent.  Metasternal  side  pieces  almost  entirely  concealed  by  the  elytra  ; 
metasternum  short.  Intercoxal  process  broad,  truncate,  second  abdominal 
segment  but  little  longer  tlian  the  third  and  separated  from  the  first  by  a 
straight  suture.     Corbels  ,of  hind  tibife  open,  claws  of  tarsi  free. 

The  supports  of  the  deciduous  pieces  of  the  mandibles  are  very  promi- 
nent, obliquely  truncate  and  pointed  at  tip ;  the  deciduous  pieces  do  not 
exist  on  any  of  the  specimens  before  me.  The  open  posterior  corbels  and 
the  straight  first  abdominal  suture  would  seem  to  place  the  two  genera  here 
included  in  Lacordaire's  Blosyrides  with  which,  however,  they  have  but 
little  in  common. 

Two  genera  are  thus  separated  : 
Scape  attaining  the  middle  of  the  eyes,  the  latter 

moderately  prominent,  without  posterior  orbit.  HORMORUS. 

Scape  barely  attaining  the  anterior  margin  of  the 
eye,  the  latter  spherical,  prominent  and  with 
posterior  orbit AGASPHJEROPS. 

These  two  genera  have  the  elytra  at  base  feebly  emarginate  and  some- 
what broader  than  the  thorax,  the  humeri  being  broadly  rounded  in  the 
latter  and  subrectangular  in  the  former  genus.  There  is  also  a  close  super- 
ficial resemblance  to  Otiorhynclius,  especially  in  the  second,  where  the  sur- 
face is  black  and  with  few  and  inconspicuous  scales.  Hormorun  is  how- 
ever more  ornate  as  will  be  seen  in  the  description.  I  have  endeavored  to 
find  genera  to  which  these  are  allied,  but  with  the  work  of  Lacordaire  and 
the  limited  foreign  collection  at  my  disposal  I  am  entirely  unable  to  do  so, 
I  must  therefore  describe  them  so  far  as  to  make  them  recognizable  in  our 
fauna  and  leave  their  relationships  for  future  determination. 

HORMORUS  n.  g. 

Rostrum  longer  and  narrower  than  the  head,  cylindrical  at  base,  slightly 
dilated  at  apex,  alje  moderately  prominent,  tip  acutely  emarginate  and  with 
a  V-shaped  line  and  on  each  side  a  groove,  median  line  finely  impressed, 
terminating  in  a  broad  shallow  impression  and  between  the  eyes  in  a  slight 
puncture.  Mandibular  processes  prominent,  obliquely  truncate  and  acute 
at  tip.     Mentum  slightly  retracted,  in  great  part  concealing  the  other  oi'al 


24  OTIORHYNCHID^.  ^Ho^n 

organs.  E3'es  round,  moderately  prominent.  Scrobes  moderately  deep  in 
front,  slightly  arcuate  and  well  defined,  posteriorly  vague  and  passing  im- 
mediately beneath  the  lower  margin  of  the  eye.  Antennae  moderately 
long,  scape  gradually  clavate,  attaining  the  middle  of  the  eye  ;  funicle  7 
jointed,  the  first  two  slightly  longer  and  subequal,  3-7  obconical,  the  last 
slightly  broader  but  distant  from  the  club  which  is  oval,  acute  and  dis 
tinctly  articulated.  Thorax  oboval,  without  ocular  lobes  or  fimbriae. 
Scutellum  invisible.  Elytra  oblong  oval,  feebly  emarginate  at  base  and 
slightly  wider  than  the  thorax.  Mososternal  process  nearly  vertical.  Meta 
sternum  short,  side  pieces  with  distinct  suture,  but  almost  entirely  covered 
by  the  elytra.  Intercoxal  process  broad,  truncate,  second  segment  not  as 
long  as  the  two  following  united,  separated  from  the  first  by  a  very  nearly 
straight  suture.  Tibiae  mucronate,  the  anterior  and  middle  denticulate 
within,  corbels  of  hind  tibiae  open,  glabrous,  tarsi  normal,  claws  free, 
Body  above  sparsely  scaly  in  irregular  bands  and  patches. 

H.  undulatus  Uhler  (Ghlorophanus)  Proc.  Acad.,  1855,  p.  416. 

Form  elongate  oval,  dark  brown,  ornate  with  pearly  scales.  Head  and 
rostrum  as  long  as  the  thorax,  moderately  densely  punctured,  sparsely 
covered  with  pearly  scales  and  recumbent  scale-like  hairs.  Thorax  slightly 
longer  than  wide,  broadest  in  front  of  middle,  sides  arcuate  in  front, 
slightly  convergent  towards  the  base,  apex  truncate  and  with  feeble  con- 
striction behind  the  margin,  disc  moderately  convex,  median  line  distinctly 
impressed,  surface  coarsely  and  closely  tuberculate,  each  tubercle  punc- 
tured at  summit  and  with  a  scale-like  hair,  lateral  margin  with  a  narrow 
line  of  pearly  scales.  Elytra  oblong  oval,  narrower  in  the  male,  disc  mode- 
rately convex,  suddenly  declivous  at  apex,  surface  with  striaj  of  large,  deep, 
closely  placed  punctures,  intervals  narrower  and  with  granules  moderately 
elevated ;  surface  ornate  with  pearly  scales,  arranged  in  the  form  of  a  hu- 
meral lunule  and  an  irregular  patch  on  each  side  of  the  declivity.  Body 
beneath  densely  punctured,  sparsely  covered  with  scale-like  hairs  and  with 
a  patch  of  pearly  scales  on  each  side  of  metasternum.  Legs  piceous, 
sparsely  hairy,  femora  with  few  scales  near  the  tip.  Length  .30  inch  ; 
7.5  mm. 

Occurs  in  Canada,  Maryland,  Illinois. 

AGASPHJEROPS    n.  g. 

Rostrum  much  longer  than  the  head,  cj^lindrical  at  base,  dilated  in  front, 
alae  prominent,  above  with  deep  median  groove,  lip  feebly  trisinuate,  a  V- 
shaped  elevated  line  and  on  each  side  a  broad  gi'oove.  Supports  of  decidu- 
ous pieces  prominent,  obliquely  truncate  and  acute  at  tip.  Mentum  filling 
the  gular  emargination.  Scrobes  deep  and  visible  from  above  in  front, 
feebly  arcuate,  gradually  feebler  posteriorly  and  passing  immediately  be- 
neatli  the  eyes.  Antennae  moderate,  scape  short,  moderately  robust,  gradu- 
ally clavate,  nearly  attaining  tlie  anterior  margin  of  the  eye ;  funicle  7- 
jointed,  one  and  a-half  times  the  length  of  the  scape  ;  joints  1-2  sub-equal, 
longer  than  the  others,  3-7  short,   obconical  ;    club  oval.     Eyes  round. 


Horn.] 


BRACHYDKRINI.  25 


prominent,  surrounded  by  a  moderately  deep  orbital  groove.  Head  short, 
deeply  inserted,  hemispherical.  Thorax  without  ocular  lobes  or  flmbriie. 
Scutellum  invisible  Metasternum  short,  side  pieces  nearly  concealed, 
suture  distinctly  visible.  Intercoxal  process  broad,  feebly  arcuate  in  front, 
second  abdominal  segment  as  long  as  the  two  following  united,  separated 
from  the  first  by  a  straight  suture.  Anterior  and  middle  tibiae  feebly  mu- 
cronate,  corbels  of  hind  tibiie  open,  tarsi  normal,  claws  free. 

The  general  aspect  of  the  unique  species  is  such  that,  were  the  scapes  of 
the  antennaj  long,  I  would  have  placed  the  genus  in  Otiorhynchini. 

A.  nigra,  n.  sp. 

Elongate  oval,  Otiorhy nehuH-Yike,  black,  sub-opaque.  Head  and  rostrum 
as  long  as  the  thorax.  Rostrum  deeply  grooved  at  middle,  coai'sely  punc- 
tured and  glabrous.  Antennae  piceous.  Tliorax  cylindrical,  as  long  as 
wide,  sides  moderately  arcuate,  disc  convex,  surface  with  coarse  closely 
placed  tubercles,  each  perforated  at  summit  and  bearing  an  indistinct  scale. 
Elytra  oval,  base  feebly  emarginate  and  wider  than  tlie  thoi'ax,  humeri 
broadly  rounded,  disc  moderately  convex,  surface  with  rows  of  coarse, 
sub-quadrate  punctures,  intervals  with  flattened  tubercles  each  perforated 
and  with  an  indistinct  scale.  Body  beneath  black  glabrous,  coarsely  and 
densely  punctured.  Legs  black,  more  sparsely  punctured.  Length  .30  inch  ; 
7.5  mm. 

Two  specimens.     Mendocino,  Cal. 

Group  V.     Trig:onoscat?e. 

Anterior  tibiae  with  the  outer  apical  angle  prolonged.  Articular  surfaces 
of  liind  tibiae  strongly  cavernous  and  scaly. 

TRIGONOSCUTA    Motsch. 

Trigonoscuta  Motsch.  Etudes  Entomol.  I,  1852,  p.  79. 

Rostrum  sub-cylindrical,  slightly  longer  and  narrower  than  the  head, 
separated  from  the  head  by  a  fine  imi^ressed  line,  above  finely  canaliculate, 
tip  truncate.  Scrobes  deep,  arcuate,  passing  near  the  lower  margin  of  the 
eyes.  Antennae  moderately  long ;  scape  gradually  clavate,  passing  'the 
eyes  posteriorly  ;  funicle  7-jointed,  1-3  longer  sub-equal,  3-7  obconical, 
gradually  shorter  and  broader,  club  oval.  Eyes  oval,  slightly  oblique.  Tlio- 
rax sub-tranverse,  truncate  at  base  and  apex.  Scutellum  small,  triangular. 
Elytra  oval  (^  or  broadly  oval  9>  humeri  rounded.  Legs  moderate, 
femora  moderately  clavate,  anterior  tibiae \lilated  at  tip,  and  with  the  mid- 
dle tibiae  slightly  swollen  at  middle  ;  hind  tibiae  very  obliquely  truncate, 
the  articular  surfaces  cavernous  and  scaly.  Tarsi  spongy  and  villous  be- 
neath, median  line  glabrous  last  joint  long,  claws  moderate,  free.  Inter- 
coxal process  very  broad,  slightly  rounded  in  front.  Second  segment  of 
abdomen  longer  than  the  two  following  united,  separated  from  the  first  by 
an  arcuate  suture.     Body  scaly  and  hairy. 

The  supports  of  the  deciduous  pieces  are  not  prominent.  These  pieces 
are  rather  long,  very  feebly  arcuate  and  obtuse  at  tip.     The  generic  des- 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  D 


26  OTIORHYXCHIDJE.  [Horn. 

cription  given  by  Motscliulsky  is  so  extreme!}'  vague  aud  short  as  to  be 
entirely  valueless,  and  in  strict  justice  the  genus  should  be  credited  to 
Lacordaire. 

T.  pilosa  Motsch.  Etudes  Eatom.  I,  1852,  p.  79 ;  Lacord.  Genera, 
Atlas  pi.  61,  flg.  5,  a-b. 

Form  oval,  robust,  surface  densely  covered  with  cinereous  scales  and 
moderately  long  greyish  hairs  sparsely  placed,  elytra  irregularlj^  varie- 
gated with  fuscous.  Head  and  rostrum  as  long  the  thorax,  densely  scaly 
and  sparsely  pilose.  Antenn*  rufous,  liairy.  Thorax  broader  than  long, 
narrower  in  front,  sides  strongly  arcuate,  disc  convex,  surface  moderately 
densely  scaly.  Elytra  rather  broadly  oval,  humeri  broadly  rounded,  sides 
feebly  arcuate  and  slightly  acuminate  posteriori}',  disc  convex,  with  rows 
of  moderately  fine  punctures,  surface  densely  scaly  and  sparsely  pilose. 
Body  beneath  moderately  densely  scaly  and  with  rather  longer  hairs  than  the 
upper  surface,  last  three  segments  of  ahdomsn  distinctly  pubescent.  Legs 
more  sparsely  scaly  and  with  rather  long  greyish  hairs.  Length  .32 — .36 
inch  ;  5.5 — 9  mm. 

The  males  have  the  metasternum  and  abdomen  broadly  concave.  The 
scales  covering  the  elytra  and,  in  fact,  the  entire  upper  surface  are  very 
variable  in  coloration.  The  ground  color  is  a  cinereous  usually  very  irregu- 
larly mottled  with  fuscous.  Occasionally  specimens  occur  in  which  the 
elytra  are  pale  ochreous  with  an  irregular  band  on  the  middle  of  each  ely 
tron  becoming  gradually  broader  behind,  nearly  uniting  at  the  suture. 

This  species  is  not  rare  on  the  sea-coast  at  San  Francisco,  Cal. 

Group  VI.     Calyptilll. 

Rostrum  not  longer  than  the  head,  sub-quadrangular,  very  slightly  nar- 
rowed toward  the  tip  and  but  little  narrower  than  the  head.  Eyes  round, 
coarsely  granulated  and  almost  entirely  concealed  from  above  by  a  small 
tubercle.  Scrobes  lateral,  arcuate,  deep.  Thorax  without  ocular  lobes  or 
fimbriae.  Scutellum  very  indistinct.  Mesosternal  side  pieces  very  un- 
equal. Metasternum  short,  side  pieces  moderate,  suture  obliterated.  Ab- 
domen normal,  intercoxal  process  broad  truncate  in  front.  Tarsi  with 
coarse  spinous  hairs  beneath,  third  joint  not  wider  than  the  second  and 
feebly  emarginate,  last  joint  moderately  long,  claws  fi'ce.  Anterior  tibiae 
feebly  mucronate  and  digitate  at  ti])  with  four  or  five  coarse  spinules,  articu- 
lar cavities  of  hind  tibine  cavernous. 

The  gular  emargination  is  moderately,  large  and  without  sub-mental 
peduncle.  The  mentum  is  nearly  semicircular  in  shape  and  partially  ex- 
poses the  other  oral  organs,  the  maxilhe  being  slightly  visible  at  the  sides 
and  the  ligula  at  tip. 

The  combination  of  characters  above  given  will  be  found  very  dilUcult 
to  place  in  any  tribe  of  Lacordaire's  system.  The  genus  can  not  be  called 
Phanerognath,  as  the  mentum  conceals  the  greater  portion  of  the  oral  or- 
gans, and  I  am  equally  at  a  loss  for  a  position  in  the  Adelognath  series. 

The  occurrence  of  narrow  tarsi  in  this  portion  of  the  series  is  certainly 


Horn.] 


OPHKTASTIXI.  27 


a  remarkable  circumstance  and  serves  to  illustrate  tlie  almost  utter  impossi 
bility  of  dividing  any  portion  of  the  Rhyncliophoi-us  sub-order  without 
apparently  doing  violence  to  some  important  cliaracter.  As  the  present  is 
the  first  occurrence  of  this  character,  it  might  be  here  observed  that  two 
others  always  accompany  it  (in  our  fauna)  viz. : — The  approximation  of  the 
last  joint  of  the  funicle  to  the  club  and  the  tarsi  more  or  less  spinous  be- 
neath. Ophryastes,  Bhigopsis,  and  Cimbocera,  the  only  genera  of  Otio- 
rhynchidae  in  our  fauna  with  narrowed  tarsi,  all  have  the  other  two  char- 
acters. The  tarsi  may,  however,  be  more  or  less  spinous  in  other  genera, 
but  the  antennal  character  never  occurs  without  narrowed  tarsi. 

CALYPTILLUS    n.  g. 

Rostrum  not  longer  than  the  head,  sub-quadrangular,  slightly  narrower 
in  front,  a  feeble  trace  of  transverse  impression  at  base,  above  flat,  tip 
broadly  emarginate  ;  head  with  a  tuberculiform  process  over  each  eye. 
Scrobes  deep,  arcuate,  well  defined,  passing  beneath  the  eyes.  Eyes 
round,  moderately  convex,  coarsely  granulated.  Antennae  moderate,  scape 
graduallj'  stouter,  slightly  arcuate,  passing  the  eyes  behind  ;  funicle  7- 
jointed,  very  little  longer  than  the  scape,  first  joint  longer  and  stouter, 
second  nearly  as  long  ;  3-7  short  gradually  broader,  the  last  very  close  to 
the  club,  the  latter  oval,  distinctly  articulated.  Thorax  transversely  oval, 
neither  lobed  nor  fimbriate  behind  the  eyes.  Scutellum  scarcely  visible. 
Elytra  broadly  oval,  base  feebly  emarginate,  humeri  broadly  rounded. 
Femora  rather  feeblj-  clavate.  Tibiae  especially  the  anterior  with  coarse 
spinules  at  tip.  Metasternum  short.  Second  segment  of  abdomen  as  long 
as  the  two  following,  first  suture  arcuate  at  middle.  Body  densely  scaly 
and  hispid. 

C.  eryptops,  n.  sp. 

Form  broadl}^  oval,  densely  covered  with  brownish  cinereous  scales, 
irregularly  variegated  with  darker  color.  Head  and  rostrum  as  long  as  the 
thorax,  densely  scaly  and  with  few  short  erect  clavate  hairs.  Thorax  oval, 
broader  than  long,  apex  and  base  truncate,  sides  regularly  arcuate,  disc 
moderately  convex,  surface  granulato  punctate,  sparsely  scaly  near  the 
sides  and  with  short  erect  clavate  hairs.  Elytra  broadlj"  oval,  moderately 
convex,  one-half  wider  than  the  thorax,  humeri  broadly  rounded,  sides 
feebly  arcuate,  apex  obtuse,  surface  faintly  striate,  striae  with  distant  punc- 
tures, intervals  flat,  densely  covered  with  brownish  cinereous  scales,  irreg- 
ularly clouded  with  darker  color  and  each  interval  with  a  row  of  \ery 
short  sub-erect  scale-like  hairs,  slightly  clavate.  Body  beneath  covered  as 
above.     Legs  sparsely  scal\^     Length  .10  inch  ;  2.5  mm. 

The  form  and  general  aspect  of  the  species  is  that  of  a  TracTiypMctus. 
The  surface  color  deprived  of  scales  is  dark  castaneous. 

One  specimen,  New  Mexico. 

Tribe  IL     ophkyastini. 

This  tribe  as  here  interpreted,  corresponds  very  nearly  with  the  Leptops- 
ides  of  Lacordaire,   as  far  as  our  genera  are  concerned.     Lacordaire  in 


28  OTIORHYXCHID^.  ^Hom. 

eludes  very  heterogeneous  material  as  must  be  evident  to  even  a  superficial 
observer.  No  one  can  deny  the  necessity  of  approaching  Entvmus  and  its  ■ 
allies  to  Gyplms,  forming  a  distinct  tribe,  however,  from  the  latter,  and  at 
the  same  time  Leptops  must  be  similarly  dealt  with,  and  should  probably 
be  placed  with  the  Entimides.  As  far  as  I  have  studied  the  majority  of 
the  genera  of  the  group  Leptopsides  vrais,  should  remain  in  the  present 
tribe. 

As  Leptops  belongs  to  my  second  division,  I  have  been  compelled  to 
change  the  name  of  the  tribe,  and  have  adopted  that  of  our  most  prominent 
genus. 

As  interpreted  in  the  present  paper,  this  tribe  has  the  following  charac- 
teristics : 

Rostrum  moderately  or  very  robust,  quadrangular  or  sub-cylindrical. 
Mandibles  robust,  never  prominent  or  laminiform  at  tip,  scar  round,  very 
distinct  and  sometimes  prominent.  Mentum  large  or  at  least  moderate, 
concealing  in  great  part  the  other  oral  organs,  sub-mentum  rarely  feebly 
pedunculate.  Scrobes  lateral,  rarely  (Phyxelis)  visible  from  above,  di- 
rected either  toward  the  middle  of  the  eyes  or  inferiorly.  Antennae  mode- 
rate, scape  always  attaining  at  least  the  eye,  funicle  7-jointed,  the  last 
usually  free,  rarely  (Cimbocera  and  Ophryastes)  contiguous  to  the  mass. 
Thorax  always  with  distinct  ocular  lobes  which  are  frequently  fimbriate. 
Metasternum  usually  very  short,  side  pieces  usually  narrow,  suture  nearly 
always  visible.  Mesosternal  side  pieces  unequally  divided,  episternum 
and  elytral  margin  contiguous.  Intercoxal  process  at  least  moderately, 
sometimes  very  broad  {Rhigopsin).  Abdomen  variable,  second  segment 
longer  than  the  two  following  luiited  (except  in  Ophryastes),  and  with  the 
first  suture  arcuate  (except  in  Ophryastes  and  some  Strangaliodes).  Tarsi 
variable,  usually  pubescent  beneath,  sometimes  spinous  ;  third  joint  usually 
deeply  bilobed  and  broader,  rarely  simply  emarginate  and  not  wider  than 
the  second,  (certain  Ophryastes,  and  in  Cimbocera  and  Bhigopsis).  Claws 
always  free.     Body  always  apterous. 

The  tribe  contains  moderately  homogeneous  material  but  with  evident 
tendencies  in  some  of  the  genera  to  closely  approximate  those  of  neighbor- 
ing tribes,  especially  is  this  the  case  in  those  genera  with  the  feebler  ocular 
lobes.      Thus    Phyxelis  approaches    Trachypliloeus  and    Phymaimus  to 
Otiorhynclius.    There  is  very  little  tendency  to  approch   Division  II, 
Phyinatinus  alone  having  the  mesosternal  side  pieces  nearly  equally  divided 
but  the  metasternal  parapleurae  are  not  at  all  like  those  of  that  division. 
The  genera  of  the  tribe  form  the  following  groups: 
Rostrum  robust,  quadrangular,  more  or  less  distinctly  trisulcate  above. 
Scrobes  rapidly  inferior,  well  defined.     Eyes  always  narrow  and  acute 

below,  partially  concealed  by  the  ocular  lobes. 
Abdomen  with  second  segment  rarely  as  long 

as  the  two  following  together,   first  suture 

straight.       Intercoxal  process    moderately 

wide Ophryastes. 


Horn.] 


OPHRYASTINI.  29 


Abdomen  with  second  segment  longer  than 
the  two  following  together,  first  suture 
strongly  arcuate.     Intercoxal  process  ver}'- 

broad  Rhisropses. 

Kostrum  less  robust,  sub-cylindrical,  never  sul- 
cate  above.  Scrobes  feebly  inferior,  usually 
directed  toward  the  ej^es  or  visible  from 
above  and  badly  defined.  Eyes  oval,  not  acute 
below  and  usually  entirely  free. 

Scrobes  entirely  lateral Stran^aliodes. 

Scrobes  visible  from  above ■  Phyxeies. 

The  groups  as  above  defined  are  very  distinctly  limited  in  our  fauna,  the 
last  group  alone  being  of  doubtful  value. 

In  this  tribe,  occur  genera  with  the  narrow  third  tarsal  joint,  which 
however,  is  not  of  the  form  seen  in  the  Byrsopid^.  This  character  will  be 
spoken  of  at  greater  length  in  the  genera  in  which  it  occurs. 

Group  I.   Ophryastes. 

Rostrum  robust,  angular,  more  or  less  distinctly  trisulcate,   tip   feebly 
emarginate  with  a  small  triangular  smooth  space.     Antennae  moderately 
robust,  scaly,  scape  gradually  thicker,   nearly  attaining  the  eyes,  funicle 
7-jointed,  the  last  joint  contiguous  to  the  club  which  is  oval.  Scrobes  deep, 
passing  obliquely  downwards  in  front  of  the  eyes.    Eyes  oval,  transverse, 
pointed  beneath.     Thorax  variable  in  form,  either  oval  or  transverse,  and 
with  callosities  at  the  sides.     Elytra  oval  or  oblong.     Scutellum  wanting. 
Abdominal  sutures  straight,  second  segment  equal  to,  or  very  little  longer 
than,  the  third.     Tibiae  not  mucronate  at  tip.    Tarsi  variable.     Claws  free. 
The  articular  surfaces  at  the  tips  of  the  hind  tibiae  are  very  nearly  termi- 
nal and  in  great  part  scaly.     Lacordaire  calls  them   " caverneuse,"  hut  I 
think  without  reason  (for  the  majority  of  the  species).     They  are  cavernous 
in  some  Eupagoderes.     The  mesosternal  side  pieces  are  very  unequal,  the 
epimeron  being  very  small.  The  metathoracic  episternum  is  moderately 
broad  and  the  suture  more  or  less  distinct.     In  all  the  species  the  ophthal- 
mic lobes  are  of  moderate  size  and  fimbriate.      The  surface  of  the  body  is 
densel}^  scaly  and  without  any  pubescence. 
Two  genera  appear  to  be  indicated  in  our  fauna. 
Tarsi  slender,  third  joint  not  wider  than  second, 
and  simply  emarginate.     Sides  of  thdVax  with 
tuberosities  more  or  less  marked.  Tips  of  tarsal 

joints  beneath  spiniform OPHRYASTES. 

Tarsi  dilated,  third  joint  usually  wider  than 
second  and  deeply  bilobed.  Thorax  oval 
without  tuberosities,  tarsi  beneath  not  spinous 

at  tip EUPAGODERES. 

In  the  first  genus  the  elytra  are  broadly  oval,  in  the  second  elongate 
oval.     In  the  latter  also,  the  legs  are  longer. 


30  OTrORHYNCHIDJE.  ^Hom. 

OPHRYASTES  Sclionh. 

Ophrt/astes  Schonherr,  Curcul.,  i,  p.  508. 

The  species  of  this  genus  as  restricted  by  the  preceding  table,  are  not 
numerous,  and  have  a  facies  at  once  distinguishing  them  from  the  follow- 
ing genus.  They  are  all  of  robust  form,  elytra  rather  broadly  oval  and 
the  surface  densely  scaly,  either  cinereous  or  whitish,  ornamented  with 
stripes  or  spots  of  a  much  darker  color.  Considerable  variation  within 
specific  limits  is  found,  not  only  in  color  but  also  in  form.  All  the  species 
with  but  one  exception,  have  at  the  base  of  the  rostrum  a  distinctly  marked 
transverse  impression  and  the  vertex  thus  appears  convex.  The  tenth 
elytral  stria  in  the  larger  species  is  very  distinct  at  its  basal  third,  and  as 
distant  from  the  ninth  as  the  latter  is  from  the  eighth,  at  middle  the  stria 
is  not  evident,  and  at  its  apical  third  very  close  to  the  ninth.  In  the  smaller 
species,  in  which  also  the  thoracic  tuberosities  are  very  feeble,  the  tenth 
stria  is  entirely  obliterated.  The  deciduous  mandibular  piece  is  moderately 
long,  acute  at  tip,  slightly  arcuate.  This  piece  when  cast  leaves  merely  a 
a  scar  without  any  process. 

In  accordance  with  the  characters  our  species  may  be  tabulated  in  the 
following  manner: 
Tenth  elytral  stria  distinct  at  basal  third.     Thoracic 

tuberosities  large I 

Tenth    elytral    stria    almost    entirely    obliterated. 

Thoracic  tuberosities  feeble 2 

1-Rostrum  without  transverse  impression.     Median 

groove  attaining  the  occiput vittatus. 

Rostrum  with  feeble  transverse  impression.    Me- 
dian groove  attaining  the  front tuberosus. 

Rostrum  with  very  distinct  impression.     Median 

groove  rostral  only latirostris. 

2-Elytra  produced  at  base,  humeri  very  oblique sulcirostris. 

Elytra  truncate  at  base,  humeri  feebly  prominent  porosus. 

O.  vittatus  Say,  {Liparus)  Journ.  Acad,  iii,  p.  316  ;  Genn.  Sch.  Gen. 
Cure,  i,  p.  509  ;  Lee.  Proc.  Acad,  vi,  p.  443  ;  Lee,  Col.  Kansas,  1859, 
p.  18,  pi.  1,  fig.  IB. 

Rostrum  trisulcate,  lateral  sulci  extending  from  opposite  the  insertion  of 
the  antennae  to  a  point  opposite  the  eye,  deep,  slightly  arcuate  above  ; 
median  sulcus  extending  from  the  tip  nearly  to  the  occiput.  Thorax 
nearly  twice  as  wide  as  long,  sides  strongly  divergent  from  apex  and  near 
base  suddenly  narrowed,  median  line  distinctly  impressed,  surface  deeply 
punctured  and  irregular.  Elytra  regularly  or  oblong  oval,  vaguely  striate 
and  with  rows  of  moderate  punctures,  interspaces  slightly  convex,  surface 
densely  covered  with  cinereous  scales,  the  sutural  and  alternate  interspaces 
black.  Body  beneath  and  legs  densely  covered  with  whitish  scales. 
Length  .34-. 52  inch  ;  9—18  mm. 

This  species  may  be  at  once  distinguished  by  the  sculpture  of  the  head 


Horn. 


OPimYASTLNTI.  31 


and  the  vittate  elytra      It  varies  greatly  in  form  primarily  from  sexual 
differences. 
Occurs  in  Kansas  and  New  Mexico.     Not  rare 

O.  tuberosus  Lee.  Proc  Acad,  vi,  p.  443. 

Rostrum  trisulcate,  sulci  rather  broad  and  shallow,  median  passing 
slightly  on  the  front,  lateral  extending  above  the  eyes,  transverse  impres 
sion  at  base  of  rostrum  feeble.  Thorax  nearly  twice  as  wide  as  long,  con- 
stricted at  apex  and  base,  sides  (tubei'osities)  slightly  divergent  and  notched 
at  middle,  surface  deeply  punctured  and  very  irregular.  Elytra  regularly 
oval  with  rows  of  large,  deeply  impressed  punctures  ;  surface  densely 
covered  with  cinereous  scales  and  maculate  with  black.  Body  beneath  and 
legs  densely  covered  with  whitish  scales,  femora  with  black  spots  near  the 
tip.     Length  .40-.  50  inch  ;  10-12  mm. 

This  species  occurs  rather  abundantly  in  Colorado  and  New  Mexico. 

O.  latirostris  Lee,  Proc.  Acad,  vi,  p.  443;  validus  9  Lee,  Proc.  Acad, 
vii,  p.  225. 

Rostrum  deeply  transversely  impressed  at  base  (front  convex)  trisulcate, 
lateral  sulci  moderately  deep,  median  sulcus  broad,  shallow,  neither  ex- 
tending beyond  the  transverse  impression.  Thorax  nearly  twice  as  wide 
as  long,  anteriorly  moderately  at  base  suddenly  and  strongly  constricted, 
sides  divergent  from  apex  feebly  notched  at  middle  ;  surface  deeply  punc- 
tured and  very  irregular.  Elytra  regularly  oval,  feebly  (^  or  not  9  striate 
with  moderately  impressed  punctures.  Body  beneath  and  legs  densely 
covered  witli  whitish  scales.     Length  .44-.64  inch  ;  11-16  mm. 

The  elytra  are  densely  covered  with  cinereous  scales,  and  with  small 
irregularlj^  interspersed  fuscous  spots,  but  to  a  much  less  extent  than  in 
the  preceding  species.  From  both  the  preceding  species  the  present  differs 
in  the  convex  front,  the  rather  deep  transverse  impression  of  the  base  of 
the  rostrum  as  well  as  the  form  of  the  grooves.  The  thorax  does  not  differ 
greatly  in  form  in  the  three  species,  but  is  much  less  collared  in  this  than 
in  tuberosus.  The  median  line  is  impressed  in  some  and  obliterated  in 
other  specimens. 

Occurs  in  Kansas,  New  Mexico  and  Utah. 

O.  sulcirostris  Say,  (Lipanis)  Journ.  Acad,  iii,  1824,  p.  316  ;  Gyll. 
Sch.Gen.  Cure,  i,  p.  509;  Lee,  Proc.  Acad,  vi,  p.  443;  ligatus  Lee,  loc. 
cit 

Rostrum  deeply  transversely  impressed  at  base,  median  sulcus  moderate, 
lateral  sulci  short.  Front  convex.  Thorax  one-third  wider  than  long,  at 
apex  moderately,  at  base  strongly  constricted,  sides  divergent  from  apex 
moderately  tuberose,  thorax  deeply  punctured  and  irregular.  Elytra  oval, 
humeri  oblique,  surface  not  or  only  obsoletely  striate  and  with  rows  of 
inoderate  punctures,  intervals  feebly  conxex  ;  surface  densely  covered  with 
pale  cinereous  scales  maculate  with  fuscous,  sometimes  entirely  plumbeous. 
Body  beneath  and  legs  densely  covered  with  white  or  plumbeous  scales 
Length  .32-36  inch,  8-9  mm. 


32  OTIORHYXCHID^. 


[Horn. 


The  color  of  the  surface  vestiture  varies  greatly.  In  some  specimens  it  is 
entirely  plumbeous,  in  many  cinereous  obsoletely  fusco- maculate,  while  in 
ligatus  (a  9)  the  fuscous  spots  are  confluent  and  the  elytra  subvittate. 
The  deciduous  mandibular  pieces  are  of  slender  conical  form,  very  feebly 
arcuate  and  not  long. 

Occurs  in  Kansas,  Colorado  and  Utah. 

O.  porosus  Lee,  Proc.  Acad.,  1845,  p.  225. 

Rostrum  moderately  transversely  impressed  at  base,  above  trisulcate, 
median  sulcus  broad  and  shallow,  lateral  sulci  short  and  deep.  Thorax  not 
twice  as  wide  as  long,  sides  with  feeble  tuberosity  moderately  arcuate,  base 
moderately  constricted  ;  surface  coarsely  punctured  and  irregular,  median 
line  moderately  impressed.  Elytra  oval,  base  truncate,  humeri  rectangular 
slightly  broader  than  the  thorax  at  base,  with  striaj  of  moderately  large 
punctures,  surface  with  plumbeous  scales.  Body  beneath  and  legs  covered 
with  plumbeous  scales.     Length  .36  inch  ;  9  mm. 

This  species  and  the  preceding  have  the  tenth  elytral  stria  entirely  ob 
literated,  and  the  tuberosities  of  the  thorax  feeble,  in  both  of  which 
characters  tliey  differ  from  all  the  species  which  precede. 

One  specimen  collected  by  Maj.  Webb  while  on  the  boundary  survey 
between  the  United  States  and  Mexico. 

EUPAGODERES,  n.  g. 

This  genus  contains  those  species,  formerly  placed  in  Ophryastes,  with- 
out lateral  thoracic  tubei'osities.  The  tarsi  are  more  dilated,  the  joints 
proportionately  shorter  and  the  third  more  distinctly  bilobed.  The  distal 
angles  are  not  produced  in  a  spiniform  process,  a  character  by  no  means 
constant,  however,  in  Ophyrastes.  In  this  genus  the  articular  cavities  of 
the  hind  tibiae  become  internal  and  the  tip  of  the  tibia  truncate,  showing 
an  oval  scaly  space.  The  transition  from  the  double  apical  fringe,  which 
is  usual,  to  the  truncate  tip  with  the  two  rows  of  fimbriae  surrounding  an 
oval  space  is  in  this  genus  so  gradual,  even  with  the  limited  number  of 
species,  that  it  seems  to  indicate  the  little  value  of  the  characters  drawn  by 
Lacordaire  from  "  corbeilles  ouvertes"  and  "  corbeilles  caverneuses."  The 
deciduous  mandibular  piece  is  similar  to  that  of  Ophryastes.  As  in  the 
latter  genus  some  species  have  the  rostrum  and  vertex  continuous,  the 
greater  number,  however,  have  a  sinuation  at  the  base  of  the  rostrum.  0. 
Sallei  Sell,  from  Mexico  belongs  here. 

The  following  are  our  species  : 
1 — Vertex  fiat,  rostrum  without  basal  impression. 

Rostrum  sulcate,  thorax  finely  punctured speciosus. 

Rostrum  sulcate,  thorax  coarsely  and  deeply  punc- 
tured   sordidus. 

Rostrum  not  sulcate,  thorax  coarsely  and  deeply 

punctured deeipiens. 

2 — Vertex  convex,  rostrum  with  basal  impression. 

Elytral   striae  broad,    punctui'es  large  and   close. 


Horn.]  OPHRYASTIXr.  33 

Apex  of  hind  tibiae  narrow,  disc  of  tliorax  coarsely 
punctured. 

Rostrum  with  three  sulci,  elytra  oblong argentatus. 

Rostrum    with    median    sulcus    only,    elytra 

broadly  oval lucanus. 

Apex  of   hind  tibiaj    truncate  with    broad    oval 
space. 

Thorax  rather  finely  punctured desertus. 

Elytral  striae  fine,  punctures  coarse,   thorax  very 

coarsely  aiid  deeply  punctured varius. 

Elytral  stride  fine,  punctures  fine. 

Intervals  unequal,  elytra  vittate geminatus. 

Intervals  equal,  elytra  uncolorous plumbeus. 

In  the  species  belonging  to  the  first  group  the  median  sulcus  of  the  ros- 
trum extends  on  the  front.  In  the  second  group  the  sulcus  is  rostral  and 
extends  to  the  transverse  impression  only. 

E.  speciosus  Lee.  {Ophryastes)  Proc.  Acad,  vi,  p.  444. 

Form  oblong,  vertex  flat.  Rostrum  without  transverse  basal  impression, 
trisulcate,  median  sulcus  extending  from  the  tip  to  the  front,  terminating 
in  a  small  fovea,  lateral  sulci  on  the  sides  of  the  rostrum,  deep  and  angula- 
ted;  surface  sparsely  punctured,  densely  scaly  with  white,  middle  and  sides 
plumbeous.  Thorax  broader  than  long,  sides  rather  strongly  arciuite, 
apex  and  base  with  deeply  impressed  line  at  the  sides,  median  line  finely 
impressed ;  surface  rather  finely  punctured,  even,  covered  with  dark 
plumbeous  scales  ;  on  each  side  of  middle  an  irregular  white  vitta.  Elytra 
oblong  oval,  finely  striate,  stria;  serrately  punctured,  intervals  flat,  unequal, 
surface  densely  covered  Avith  dark  plumbeous  scales,  the  narrower  intervals 
and  sides  white.     Body  beneath  and  legs  white.  Length  .74  inch  ;  19  mm. 

One  of  the  most  conspicuous  Rhynchophora  in  our  fauna.  The  tenth 
elytral  stria  is  composed  of  a  few  punctures  close  to  the  margin.  The 
cotyloid  cavities  of  the  hind  tibiae  are  feebly  cavernous  and  scaly. 

Occurs  in  north-western  Texas. 

E.  decipiens  Lee.  {Ophryastes)  Proc.  Acad,  vi,  p.  445. 

Form  oblong.  Vertex  not  more  convex.  Rostrum  without  basal  im- 
pression, median  sulcus  replaced  by  an  obsolete  fovea,  lateral  sulci  very 
short  ;  surface  sparsely  punctured,  densely  covered  with  whitish  scales. 
Thorax  not  broader  than  long,  sides  strongly  arcviate,  apex  and  base  trun- 
cate, surface  deeply  perforato-punctate,  not  uneven.  Elytra  oblong  oval, 
finely  striate,  striae  with  rather  distant  punctures,  intervals  equal,  flat,  sur- 
face densely  covered  with  dark  cinereous  scales.  Botly  beneath  and  legs 
white.     Length  .28-.  44  inch  ;  7-11  mm. 

Posterior  cotyloid  cavities  strongly  cavernous.  This  species  may  be 
easily  known  by  the  sculpture  of  the  rostrum. 

Occurs  in  Texas,  New  Mexico  and  Arizona. 

PROC.  AMER.  PHILOS.  SOC.   XV.  96.  E 


34  OTIOEHY]S'CHID.E. 


[Horn. 


E.  sordidus  Lee.  ( Ophryastes)  Proc.  Acad,  vi,  p.  445. 

Form  oblong  oval.  Rostrum  trisulcate,  median  sulcus  attaining  the  base 
of  the  rostrum,  lateral  sulci  deep  and  straight,  no  transveree  hasal  impres- 
sion. Thorax  slightly  broader  than  long,  sides  moderately  arcuate,  base 
and  apex  truncate,  surface  sparsely  punctured  and  slightly  uneven.  Elytra 
oval,  strife  replaced  by  rows  of  moderate  punctures,  intervals  equal,  sur- 
face densely  covered  with  cinereous  scales  and  obsoletely  maculate.  Body 
beneath  and  legs  nearly  white.     Length  .  36  inch  ;  9  mm. 

This  species  resembles  the  preceding  but  is  less  elongate,  the  elytra  wider 
at  base,  and  the  rostrum  differently  sculptured.  Some  specimens  are  macu- 
late nearly  as  in  Oph.  tuberosus.  The  posterior  cotyloid  cavities  are  dis- 
tinctly cavernous. 

Occurs  in  Kansas  and  New  Mexico. 

E.  argentatus  Lee.  (Ophryastes)  Proc.  Acad,  vi,  p.  444. 

Form  oblong,  surface  covered  with  pearly  white  scales,  vertex  convex. 
Rostrum  with  distinct  basal  impression,  above  trisulcate,  median  sulcus 
fine  and  long,  lateral  sulci  deeper,  shorter  and  arcuate  ;  surface  sparsely 
punctured.  Thorax  broader  than  long,  sides  arcuate,  base  and  apex  trun- 
cate, median  line  distinct,  surface  deeply  perforato -punctate.  Elytra  oval, 
slightly  oblong,  with  broad  shallow  striae  with  large  closely  placed  punc- 
tures ;  intervals  slightly  convex.  Body  beneath  and  legs  silveiy  white. 
Length  .60  inch  ;  15  mm. 

The  cotyloid  cavities  of  hind  tibife  are  scarcely  at  all  cavernous.  This 
is  the  third  species  in  size  of  the  genus  and  may  readily  be  known  by  the 
characters  given  in  the  table. 

Occurs  in  the  desert  regions  of  south-eastern  California. 

E.  lucanus,  n.  sp. 

Form  oblong,  moderately  robust.  Head  and  rostrum  as  long  as  the 
thorax.  Rostrum  Avith  distinct  transvei'se  impression  at  base,  and  with 
fine  median  line  only,  surface  punctured  covered  with  intermixed  cinereous 
and  fuscous  scales.  Thorax  nearly  spherical,  truncate  at  apex  and  base, 
slightly  wider  than  long,  median  line  broad  but  shallow,  surface  coarsely 
punctured  covered  with  cinereous  and  fuscous  scales  with  a  broad,  darker 
line  on  each  side.  Elytra  oval,  slightly  longer  than  twice  the  thorax,  with 
rather  broad  but  very  shallow  striae  with  coarse  distant  punctures,  intervals 
slightly  convex,  surface  with  dark  cinereous  scales  irregularly  marmorate 
with  fuscous.  Body  beneath  and  legs  covered  with  cinereous  scales. 
Length  .28  inch  ;  7  mm. 

The  cotyloid  cavities  of  the  hind  tibice  are  feebly  cavernous  and  the 
oval  space  at  tip  is  very  narrow  and  glabrous. 

One  specimen  from  Cape  San  Lucas,  Peninsula  of  California. 

E.  desertus,  n.  sp. 

Form  oblong,  moderately  robust,  surface  densely  covered  with  silvery 
white  scales.  Rostrum  with  rather  deep  transverse  impression  at  base, 
median  sulcus  shallow,  indistinct,  lateral  sulci  moderate,  not  deep,  surfixce 


Horn.]  OPHRYASTINI.  Oi) 

sparsely  punctured.  Thorax  slightly  wider  than  long,  narrower  in  front, 
sides  feebl}'-  arcuate  from  apex  to  base,  behind  the  apex  a  transverse  im- 
pression moderately  coarsely  jjunctured,  at  sides  near  middle  a  feeble  im- 
pression, median  line  finely  impressed  ;  disc  very  sparsely  and  compara- 
tively finely  punctured,  at  sides  slightly  rugulose  and  more  coarsely  pune 
tured.  Elytra  oblong  oval,  three  times  as  long  as  the  thorax,  one  and 
a-half  times  as  long  as  wide,  strife  broad  and  shallow,  punctures  coarse  and 
serrate,  intervals  feebly  convex.  Body  beneath  and  legs  densely  covered 
with  whitish  scales.     Length  .88  inch  ;  32  mm. 

Posterior  cotyloid  cavities  strongly  cavernous,  tip  of  tibiie  truncate  with 
broad  oval  scaly  space.     This  species  is  the  largest  of  the  genus. 

One  specimen  found  dead  at  Carisa  Creek  on  the  borders  of  the  Colorado 
Desert  of  California. 

E.  varius  Lee.  {Ophryastes)  Proc.  Acad,  vi,  p.  444. 

Form  oblong.  Rostrum  transversely  impressed  at  base,  median  sulcus 
feeble,  lateral  sulci  deep  but  short  and  ai'cuate,  surface  sparsely  punctured 
covered  with  silvery  white  scales.  Thorax  cylindrical,  sides  moderately 
arcuate,  apex  and  base  truncate,  median  line  finely  impressed,  disc  coarselj- 
and  rather  closely  punctured,  surface  covered  with  silvery  white  scales 
with  a  median  and  lateral  plumbeous  stripe.  Elytra  oboval,  broadest  be 
hind  the  middle,  finely  striate  and  with  coarse  punctures  not  closely  placed, 
surface  with  silvery  white  scales  irregularly  marmorate  with  plumbeous 
spots  sometimes  forming  two  vittae.  Body  beneath  and  legs  silvery  white. 
Length  .30-.44  inch  ;  7.5-11  mm. 

The  cotyloid  cavities  of  the  hind  tibite  are  moderately  cavernous,  the 
space  at  the  tip  very  narroAvly  oval  and  scaly.  This  species  in  form  and 
color  resembles  dectpiens,  but  may  be  known  by  the  form  of  the  rostrum. 

Occurs  in  the  desert  regions  of  California  and  Arizona. 

E.  geminatus,  n.  sp. 

Form  oblong  oval,  moderately  robust.  Rostrum  transversely  impressed 
at  base,  above  trisulcate,  median  sulcus  finely  impressed,  lateral  sulci  short 
but  deep,  surface  sparsely  punctured,  covered  with  whitish  scales,  a  plum- 
beous space  in  front  of  each  eye.  Thorax  broadly  oval,  wider  than  long, 
widest  at  base,  sides  strongly  arcuate,  median  line  rather  deeply  impressed, 
disc  coarsely  punctured,  surface  densely  clothed  with  whitish  scales  with  a 
broad  plumbeous  stripe  on  each  side.  Elytra  regularly  oval,  three  times 
as  long  as  thorax  and  a  third  longer  than  wide,  finely  striate,  striaj  obsoletely 
punctured,  intervals  flat,  unequal  ;  surface  densely  covered  with  white 
scales,  strise  narrowly  black,  narrow  intervals  slightly  darker  in  color  than 
the  others.  Body  beneath  and  legs  white.  Length  .30-.  50  inch  ;  7.5- 
12.5  mm. 

The  posterior  cotyloid  cavities  are  strongly  cavernous  and  the  tip  of  the 
tibiae  narrowly  oval,  the  space  scaly.     A  very  distinct  and  striking  species. 

Not  rare  in  Owen's  Valley,  California. 

E.  plumbeus,  n.  sp. 

Oval  moderately  robust,  surfiice  densely  covered  with  cinereous  or  plum- 


36  OTIORHYNCHID^. 


[Horn. 


beous  scales.  Head  and  rostrum  as  \n  geminatus,  scales  unicolorous.  Thorax 
more  than  a-half  broader  than  long,  apex  slightly  narrower,  sides  strongly 
arcuate,  disc  coarsely  but  sparsely  punctured  surface  witli  plumbeous  scales, 
a  darker  vitta  at  the  sides.  Elytra  broadly  oval  moderately  intlated,  finely 
striate,  strife  indistinctly  punctured,  intervals  equal,  flat,  surface  densely 
covered  with  cinereous  or  plumbeous  scales.  Body  beneath  as  above. 
Length  .24-.  36  inch  ;  6-9  mm. 

Cotyloid  cavities  of  hind  tibiae  moderately  cavernous,  tip  of  tibiae  with 
narrow  oval  scaly  space.  This  species  is  of  more  robust  facies  than  any 
other  of  the  genus  and  may  be  known  by  thC/ characters  given  in  the  table. 

Not  rare  in  Owen's  Valley,  California. 

Group  II.     Khlgropses. 

Rostrum  quadrangular,  broader  in  front,  deeply  sulcate  above.  Eyes 
narrow,  acute  beneath.  Tarsi  not  dilated,  beneath  spinulose,  thii"d  joint 
emarginate  but  not  broader  than  the  second.  Corbels  of  hind  tibiae  feebly 
cavernous.  Posterior  coxfe  very  widely  distant.  Intercoxal  process 
broad,  truncate,  second  abdominal  segment  much  longer  than  the  two 
following  united,  separated  from  the  first  by  a  strongly  arcuate  suture. 
Metasternal  side  pieces  connate  with  the  metasternum  without  evidence  of 
sutures.  Seventh  joint  of  the  funicle  of  the  antennaj  very  close  to  the 
club. 

The  form  and  vestiture  of  the  tarsi  separate  this  group  from  the  Stranga- 
liodes  and  the  structure  of  the  abdomen  from  the  Ophryastes.  The  rostrum 
and  the  scrobes  are  not  unlike  those  of  Ophryastes. 

One  genus  occurs  in  our  fauna. 

RHIGOPSIS  Lee. 

RMgopsis  Lee.     American  Naturalist,  1874,  p.  459. 

Rostrum  c^uadrangular,  slightly  longer  than  the  head,  dilated  at  tip  and 
obliquely  truncate  above,  upper  surface  deeply  trisulcate,  tip  feebly  emar- 
ginate. Mentum  slightly  retracted.  Scrobes  deep,  well-defined,  slightly 
arcuate  in  front,  directed  toward  the  lower  border  of  the  eye.  Eyes  nar- 
row, acute  beneath.  Antennae  moderate,  scaly,  scape  gradually  stouter  at- 
taining the  margin  of  the  eye ;  funicle  7-jointed,  first  two  joints  longer, 
stouter  and  nearly  equal,  3-7  short,  gradually  broader,  club  oval,  indis 
tinctly  articulated.  Ocular  lobes  prominent.  Scutellum  indistinct.  Elytra 
oval,  feebly  conjointly  emarginate,  humeri  prominent,  tuberculate.  Meta- 
sternal side  pieces  connate  with  the  body  without  suture.  Hind  coxae  very 
widely  distant,  intercoxal  process  broad,  truncate.  Second  segment  of  ab- 
domen longer  than  the  two  following  united,  separated  from  the  first  by  a 
strongly  arcuate  suture.  Tibiae  not  mucronate  at  tip,  corbels  of  hind  tibiae 
feebly  cavernous.  Tarsi  spinous  beneath  third  joint  feebly  emarginate, 
not  wider  tlian  the  preceding.  Claws  moderate,  free.  Body  densely 
covered  with  scales,  almost  entirely  obscured  by  exudation  coating. 

The  tarsi  of  this  genus  although  narrow  are  by  no  means  of  the  Byrsopide 


Horn.] 


OPHRYASTINI.  37 


type  and  this  character  appears  to  be  of  minor  importance  in  classification 
in  the  present  tribe,  as  two  other  genera  already  mentioned  have  the  third 
joint  feebly  emarginate  and  not  wider  than  the  third. 

Rh.  effracta  Lee.  Amer.  Nat.,  1874,  p.  459. 

Form  oval,  color  piceous  densely  covered  with  cupreous  scales  almost 
entirely  obscured  by  a  dark  brown  exudation.  Head  and  rostrum  as  long 
as  the  thorax.  Rostrum  above  trisulcate,  tip  obliquely  truncate,  front 
slightly  concave  and  with  a  hood-like  tubercle  over  each  eye.  Thorax 
broader  tlian  long,  sides  at  anterior  third  more  rapidly  narrowing,  posterior 
two-thirds  feebly  converging  to  the  base,  surface  tuberculate  and  very 
irregular.  Elytra  oval,  disc  slightly  flattened,  humeri  slightly  oblique  and 
with  moderately  large  tubercle,  from  which  a  ridge  or  costa  arises  forming 
the  lateral  margin ;  disc  bicostate,  the  outer  terminating  in  a  tubercle  at 
the  sides  of  the  declivity,  intervals  with  large  fovese  separated  by  smaller 
ridges  uniting  the  costte  ;  tip  of  elytra  with  smaller  tubercle  on  each  side. 
Body  beneath  scaly  obscured  with  exudation  and  with  short  scale-like 
liairs.  Legs  dark  brown,  sparsely  scaly  and  with  fine  scale-like  hairs. 
Length  .20-.26  ;  5-6.5  mm. 

The  appearance  of  this  insect  is  that  of  a  miniature  Bhigus,  or  of  some 
Leptops.  Its  afiinities  appear  to  be  rather  with  Ophryastes  than  with  any 
other  genus. 

Occurs  in  California  feeding  on  the  Yucca. 

Group  IIL     Strangaliodes. 

The  group  as  made  up  in  the  following  table  is  not  precisely  that  in- 
tended by  Lacordaire.  There  are  without  doubt  several  genera  which 
should  be  placed  in  Iris  Eremnides,  but  with  the  exception  of  PliyxeliH  I 
can  find  no  genus  presenting  such  marked  differences  in  the  form  of  the 
scrobes  as  to  render  it  possible  t'o  draw  the  line  with  any  degree  of  accuracy 
between  those  genera  in  which  the  scrobes  are  strictly  lateral  and  those 
with  the  scrobes  arcuate  and  directed  inferiorly.  , 

The  arrangement  of  the  genera  in  the  following  table  exhibits  a  gradual 
transition  in  the  form  and  length  of  the  rostrum,  from  Diclwxenus  which 
approaches  most  nearly  Ophryastes  in  this  respect  as  well  as  in  the  struc- 
ture of  the  scrobes  and  abdomen,  to  Phymatinus  with  a  long  rostrum 
almost  entirely  lateral  scrobes  and  normal  abdomen.  Cimboeera  by  its 
narrower  tarsi  and  the  structure  of  the  antennae  approaches  OpJiryastes  in 
another  direction.  Melamomplius  resembles  almost  Y)vec\?,e\j  Amomphua 
in  form. 

I  have  not  been  able  to  obtain  anj^  characters  from  the  form  of  the  corbels 
of  the  hind  tibiae,  but  have  been  compelled  to  group  seven  genera  by  a 
character  almost  as  feeble,  the  presence  or  absence  of  mucro  at  the  tip  of 
the  hind  tibiae.  Our  genera  exhibit  sucli  a  similarity  of  structure  that  it 
is  almost  impossible  to  define  tlieir  limits  and  with  the  addition  of  new 
material  generic  definition  will  be  reduced  to  a  work  of  extreme  difliculty. 


o6 


OTIOEHYNCHID^. 


DICHOXENUS. 


ANAMETIS. 


The  following  table  is  the  result  of  a  study  in  which  it  has  been  my  en- 
deavor to  develop  a  serial  arrangement  exhibiting, 

First,  a  gradual  transition  in  the  form  of  the  rostrum,  from  the  more  ro- 
bust to  the  elongate. 

Second,  the  tendency  of  the  scrobes  to  change  from  the  sti'ongly  arcuate 
to  the  nearly  straight  and  shallow  form. 

Third,  the  structure  of  the  abdomen,  with  the  three  segments  nearly 
equal  (as  in  OpJiryastes),  to  those  with  the  abdomen  of  normal  structure. 
First  suture  of  abdomen  straight ;  second  segment 
rarely  as  long  as,  never  longer  than  the  two 
following  united  ;  hind  tibiae  usually  mutic. 
Scrobes  deep,  well  defined,  at  least  moderately 
arcuate,  passing  inferiorly. 
Scrobes  strongly  arcuate,  passing  beneath  at  a 

distance  from  the  eyes 

Scrobes  moderately   arcuate,  passing    imme- 
diately beneath  the  eye 

Scrobes  evanescent   posteriorly,  badly  defined, 

nearly  straight,  directed  toward  the  lower 

angle  of  the  eye. 

Metasternal  side  i)ieces   rather  wide,  suture 

distinct. 

Hind  tibiae  distinctly   mucronate  ;  corlicls 

cavernous 

Hind  tibite  not  mucronate  ;  corbels  open. . . 
Metasternal  side  pieces  indistinct,  suture  ob- 
literated. 
Hind  tibiiB  not  mucronate  ;  corbels  open. . 
First  suture  of  abdomen  arcuate  ;  second  segment 
as  long  as,  and  frequently  longer  than  the  two 
following  united. 
Seventh^oint  of  funicle  distant  from  the  club  ; 
third  joint  of  tarsi  broader  than  the  second, 
tarsi  densely  pubescent  beneath. 
Hind  tibiae  not  mucronate. 
Scrobes  strongly  arcuate,  moderately  deep  ; 
passing  rapidly  beneath  at  a  distance 
from  the  eyes. 
Support  of  deciduous  piece  of  mandible 
not  prominent. 
Anterior  tibiae  denticulate  within  ;  sur- 
face of  body  scaly  without  hairs  ;  cor- 
bels of  hind  tibiae  open 

Anterior  tibi;e  not  denticulate  ;  surface 
scaly  and  hairy ;  corbels  sub-cavern- 
ous   


MELAMOMPHUS. 
DYSLOBUS. 


PANSCOPUS. 


ORIMODEMA. 


MIMETES. 


Horn.] 


OPHRYASTINI. 


39 


Support  of  deciduous  piece  prominent  ; 
anterior  tibiae  not  denticulate.     Sur- 
face scaly  and  with  erect  hairs. 
Corbels  of  hind  tibiaj  cavernous ;  hu- 
meri entirely  obliterated DIAMIMUS. 

Corbels  of  hind  tibiie  open  ;  humeri  rec- 
tangular   PERITAXIA. 

Scrobes  very  feebly  arcuate,  evanescent  pos- 
teriorly, directed  toward  the  lower  an- 
gle of  the  eye,  and  short THRICO  MIGUS. 

Hind  tibife  distinctly,  usually  rather  strongly 

mucronate.  Rostrum  longer  and  narrower 

than  the  head  and  more  or  less  auriculate. 

Front  convex  separated  from  the  rostrum 

by  a  transverse  impression  ;  side  pieces 

of  metasternum  distinct,  suture  entire..  AMNESI.A . 

Front  flat,  rostrum  continuous  on  the  same 
plane    and    usually   flattened    above  ; 
side  pieces  of  metasternum  indistinct, 
suture  in  great  part  obliterated. 
Body  above  finely  tuberculate,  scales  large         PH YMATINUS. 
Body  not  tuberculate,   scales  small  and 

denser NOCHELES. 

Seventh  joint  of  funicle  contiguous  to  the  club, 
third  joint  of  tarsi  feebly  emarginate, 
scarcely  broader  than  the  preceding.  Tarsi 
sparsely  setose  beneath CIMBOCERA. 

DICHOXENUS  n.g. 

Rostrum  larger  and  slightly  narrower  than  the  head,  slightly  transversely 
impressed  at  base,  feebly  convex  above,  sub-quadrangular,  alse  very  feebly 
prominent,  tip  emarginate  and  with  a  small  smooth  space.  Scrobes  lateral 
deep,  well  defined,  arcuate,  passing  rapidly  beneath  the  head  at  a  distance 
in  front  of  the  eyes.  Antennae  moderate,  sub-apical ;  scape  gradually  cla 
vate,  scaly,  scarcely  passing  the  anterior  border  of  the  eyes  ;  funicle  7- 
jointed,  joints  1-2  sub  equal,  the  first  stouter,  3-7  obconical  gradually 
shorter,  club  elongate  oval.  Eyes  oval,  oblique.  Thorax  oval,  broader 
than  long,  truncate  at  apex  and  base,  ocular  lobe  broad  and  moderately 
prominent.  Scutellum  indistinct.  Elytra  oval,  not  wider  at  base  than  the 
thorax.  Metasternal  side  pieces  indistinct.  Intercoxal  process  of  abdomen 
broad,  slightly  arcuate  in  front.  Second  segment  of  abdomen  shorter  than 
the  two  following  united,  separated  from  the  first  by  an  absolutely  straight 
suture.  Anterior  and  middle  tibite  feebly  mucronate,  the  former  feebly 
denticulate  within.  Articular  cavities  (corbels)  of  hind  tibia;  open.  Tarsi 
normal,  densely  pubescent  beneath.  Claws  moderate,  free.  Body  scaly 
and  with  short  erect  setae. 


40  OTIORHYXCHID^. 


[Horn. 


This  genus  should  probably  be  referred  to  the  group  Leptopsides  of  Lacor- 
daire  by  its  rather  quadrangular  rostrum  although  the  lateral  grooves  and 
carina  are  here  entirely  wanting.  Whether  the  genus  be  placed  in  the 
above  group  or  with  the  Strangaliodides,  the  form  of  the  scrobes,  the  short 
scape  and  the  rather  short  second  segment  with  straight  first  suture  charac- 
terize it  as  distinct  from  any  genus  there  described. 

D.  setiger,  n.  sp. 

Oblong  oval,  densely  covered  with  moderately  large,  imbricated,  cine- 
reous scales,  discolored  brownish  by  an  exudation,  and  with  short  ere(;t 
setoe.  Head  and  rostrum  slightly  longer  than  the  thorax,  densely  covered 
with  cinereous  discolored  scales,  with  erect  slightly  clavate  setie  sparsely 
placed.  Thorax  oval,  broader  than  long,  slightly  narrower  in  front,  apex 
and  base  truncate,  sides  moderately  arcuate,  disc  convex,  rugulose,  sub- 
granulose  at  the  sides,  surface  covered  as  the  rostrum.  Elytra  oval,  slightly 
attenuate  at  apex,  base  feebly  emarginate,  humeri  obtuse,  disc  moderately 
convex,  striate,  striae  rather  finely  punctured,  intervals  slightly  convex, 
densely  scaly  and  Avith  a  single  row  of  short  erect  setae  on  each.  Body  be- 
neath less  densely  clothed  than  above,  scales  slightly  pearl)^  setae  very 
siiort  and  recumbent.     Legs  modei'ately  densely  scaly  and  sparsely  setose. 

Length  .24  inch  ;  6  mm. 

Occurs  in  Texas.     Belfrage  747. 

MELAMOMPHUS   n.  g. 

Rostrum  longer  and  narrower  than  the  head,  cylindrical  at  base,  slightly 
broader  at  tip  with  the  alae  moderately  prominent,  tip  feebly  emarginate  and 
with  a  narrow  smooth  space.  Mandibles  moderately  prominent,  supports 
of  deciduous  pieces  also  slightly  prominent.  Mentum  transversely  oval, 
sub-mentum  with  short  peduncle.  Front  convex,  separated  from  rostrum 
by  a  slight  sinuation.  Scrobes  short,  slightly  arcuate,  moderately  deep  in 
front,  rapidly  evanescent  posteriorly,  directed  slightly  beneath  the  eye. 
AntenniC  sub-terminal,  moderate  ;  scape  graduallj^  thicker  to  tip,  passing 
slightly  the  middle  of  the  eye,  setose  ;  funicle  7-jointed,  joints  1-2  longer, 
the  first  longer  than  the  second,  3-7  transverse,  short,  sub-perfoliate,  and 
verticillate  with  moderately  long  sette  :  club  oval,  pointed.  Eyes  trans- 
versely oval,  pointed  beneath.  Thorax  oval,  broader  than  long,  lobes 
moderate  and  with  short  fimbriae.  Scutellum  small,  triangular.  Elytra 
oval,  not  wider  at  base  than  the  thorax,  feebly  emarginate  at  base.  Meta- 
sternum  short,  side  pieces  moderately  wide,  separated  bj'an  arcuate  suture. 
Intercoxal  process  moderate.  Second  abdominal  segment  not  longer  than 
the  two  following  united,  first  suture  straight.  Tibiae  mucronate,  the  an- 
terior feebly  denticulate  within,  articular  surfaces  of  hind  tibiae  cavernous. 
Tarsi  normal.     Body  densely  scaly  and  hairy. 

M.  niger,  n.  sp. 

Form  oblong  oval,  densely  covered  with  brownish  black  scales  and  with 
moderately  long  black  hairs.     Head  and  rostrum  longer  than  the  thorax, 


Horn.] 


OPHKYASTINI.  41 


densely  scaly  and  sparsely  hairy.  Tliorax  transversely  oval,  truncate  at 
base  and  apex,  sides  regularly  arcuate,  disc  convex,  densely  tuberculate, 
each  tubercle  punctured  at  summit,  surfoce  sparsely  hairy.  Elytra  oblong 
oval  and  with  rows  of  moderately  large  punctures  deeply  impressed,  not 
closely  placed,  intervals  flat,  densely  scaly,  each  with  two  rows  of  mode- 
rately long  erect  black  hairs.  Body  beneath  black,  not  scaly,  coarsely  and 
deeply  punctured.  Legs  piceo-rufous  or  black,  sparsely  scaly  and  hairy. 
Length  .32  inch  ;  8  mm. 

Excepting  its  black  color  this  species  resembles  very  closely  Peritaxia 
Impida,  of  the  present  tribe,  in  its  general  form  and  appearance,  the 
generic  characters  are  however  very  different. 

Occurs  in  Nevada. 

DYSLOBUS  Lee. 

Dyslobm  (pars)  Lee.  Ann.  Mag.  Nat.  Hist.,  1869,  p.  380. 

Rostrum  longer  than  the  head  and  slightly  narrower,  slightly  wider  at 
base  and  apex  than  at  middle,  ate  very  feebly  divergent,  base  cylindrical, 
apex  sub-quadrangular  and  feebly  emarginate.  Front  convex  separated 
from  the  rostrum  by  a  feeble  transverse  impression.  Scrobes  deep  in  front, 
rapidly  evanescent  posterioi'ly,  slightly  arcuate  and  directed  toward  the 
middle  of  the  eye.  Eyes  transverse  oval,  obtuse  beneath.  Antennae 
moderate,  scape  feebly  thicker  to  tip,  attaining  the  hinder  margin  of  the 
eye  ;  funicle  7-jointed,  first  joint  slightly  longer,  2-7  obconical  and  gradu- 
ally shorter ;  club  elongate  oval,  pointed.  Thorax  oval,  not  wider  than 
long,  lobes  broad  but  very  short,  fimbriate.  Scutellum  confined  entirely  to 
the  peduncle.  Elytra  oblong  oval,  not  wider  than  the  thorax.  Metasternum 
short,  side  pieces  moderate,  suture  distinct.  Intercoxal  process  quadran 
gular,  arcuate  at  apex.  Second  segment  shorter  than  the  other  two  united, 
iirst  suture  very  nearly  straight.  Anterior  tibite  mucronate,  arcuate  in 
both  sexes,  denticulate  Avithin,  middle  tibia;  straight,  mucronate,  hind 
tibiae  straight  9  or  suddenly  arcuate  near  the  tip  and  furnished  with  a 
brush  of  moderately  long  silken  hairs  (^,  not  mucronate  at  tip*  Articular 
cavities  of  hind  tibiae  open.  Tarsi  normal.  Body  densely  scaly  and  with 
very  short  hairs. 

Having  found  it  necessary  to  separate  the  species  of  Dyslobus  to  form 
two  genera,  I  have  chosen  as  the  type  the  first  species  mentioned  (i>.  segnis) 
especially  as  it  is  the  only  one  in  which  the  second  abdominal  segment  is 
rather  short,  and  the  first  suture  straight.  This  genus  must  be  placed  near 
Panscopus,  which  it  resembles  somewhat  in  form  but  is  rather  more  elon- 
gate. 

D.  segnis  Lee.  {Otiorhynchus)  Pacif.  R.R.  Rep.  App.  1,  p.  56,  1857 

Form  oblong,  surfixce  densely  covered  with  pale  brownish  scales  and  very 
short  hairs.  Head  and  rostrum  as  long  as  the  thorax,  densely  covered  with 
brownish  and  cinereous  scales.  Thorax  broadly  oval,  as  wide  as  long  and 
nearly  as  wide  as  the  elytra  at  their  widest  part,  apex  and  base  truncate, 
sides  regularly  arcuate,  disc  feebly  convex,  densely  covered  with  brownish 

PROC.  AMEK.  PKILOS.  SOC.  XV.  96.  F 


42  OTIOKHYXCHTD^^. 


rHorn. 


scales  with  paler  spaces  near  the  sides.  Elytra  oblong  oval,  twice  as  long 
as  wide,  sides  feebly  arcuate,  apex  feebly  attenuate,  posteriorly  suddenly 
declivous  and  sub-compressed,  disc  feebly  convex,  striate,  striae  with  coarse 
rather  distantly  placed  punctures,  intervals  flat  densely  scaly  and  with  two 
irregular  rows  of  very  short  setiE  on  each.  Body  beneath  not  densely 
covered  with  pearly  w^hite  scales  and  with  very  short  hairs.  Legs  mode- 
rately densely  scaly,  scales  brown  with  whitish  patches  irregularly  inter- 
spersed.    Length  .36-44  inch  ;  9-11  mm. 

The  sexual  distinction  is  found  in  the  rather  sudden  bending  of  the  hind 
tibia?  of  the  male  with  a  brush  of  moderately  long  silken  hairs  near  the 
tip.     Occurs  in  California  and  Oregon. 

PANSCOPUS   Sch. 

Panscopus  Sclionh.  Cure,  vi,  2,  p.  266. 

Rostrum  a  little  longer  and  narrower  than  the  head,  separated  from  the 
latter  by  a  moderately  strong  arcuate  depression,  robust,  rounded  at  base, 
tip  rather  strongly  emarginate,  above  convex  obtusely  carinate.  Front 
flat.  Scrobes  deep,  well  defined,  rather  strongly  arcuate,  directed  toward 
but  not  attaining  the  lower  angle  of  the  eye.  Antennaj  moderate,  scape 
ciavate  attaining  the  middle  of  the  eyes  ;  funicle  7-jointed,  1-2  longer,  the 
first  longer  than  the  second,  joints  3-7  obconical,  gradually  broader,  club 
oval  acute.  Eyes  transversely  oval,  obtusely  pointed  beneath.  Thorax 
broader  than  long,  sides  regularly  arcuate,  lobes  short  but  broad.  Scutel- 
lum  nearly  invisible.  Elytra  oblong  oval,  not  wider  than  the  thorax,  trun- 
cate at  base.  Metasternum  short,  side  pieces  indistinct,  suture  obliterated. 
Intercoxal  process  moderate,  truncate  in  front.  Second  abdominal  segment 
equal  to  the  two  following,  separated  from  the  first  by  a  straight  suture. 
Anterior  tibia;  feebly  denticulate  within.  Articular  surfiices  of  hind  tibiaE! 
open.  Tarsi  normal.  Body  oblong,  surface  densely  scaly,  and  with  short 
setae. 

P.  erinaceus  Say  {Barynotus),  Cure.  N.  A.  p.  12  ;  Am.  Ent.  1,  p.  272; 
Sch.  loc.  cit. 

Form  oblong  moderately  robust,  surtlice  densely  covered  with  brownish 
scales,  with  paler  spots  irregularly  placed  on  the  elytra  and  a  lateral  stripe 
on  the  thorax.  Head  and  rostrum  slightly  longer  than  the  thorax,  densely 
scaly,  scales  distinctly  cupreous.  Thorax  slightly  broader  than  long,  apex 
and  base  truncate,  sides  regularly  and  rather  strongly  arcuate,  disc  mode- 
rately convex,  median  line  distinctly  impressed,  surface  rugulose,  densely 
scaly,  scales  indistinctly  cupreous,  at  the  sides  a  paler  line.  Elytra  oblong 
oval,  striate,  striae  with  moderately  large  distant  punctures,  intervals  feebly 
convex  with  a  single  row  of  short  setae  and  densely  covered  with  brownish 
scales,  sometimes  wnth  a  slight  cupreous  lustre  and  with  small  paler  spots 
irregularly  placed  especially  numerous  near  the  apex.  Body  beneath  and 
legs  similarly  covered  with  scales.     Length  .24-. 32  inch  ;  6-8  mm. 

Occurs  from  Canada  to  Pennsylvania. 

The  large  majority  of  the  specimens  are  uniformly  covered  with  a  brown- 


Horn.  J 


OPHRYASTINI.  43 


ish  coating  the  result  of  an  exudation  and  adliering  argillaceous  material. 
The  above  descrij)tion  has  been  made  from  a  clean  specimen. 

ANAMETIS  u.  g. 

Rostrum  longer  and  narrower  than  the  head,  moderately  robust,  slightly 
broader  in  front,  tip  feebly  emarginate  with  a  small  smooth  space,  limited 
behind  by  an  elevated  line.  Scrobes  moderately  deep,  well  defined, 
arcuate  and  directed  beneath  the  lower  angle  of  the  eye.  Antennse  mode- 
rate, anterior,  scape  gradually  clavate,  attaining  the  middle  of  the  eye  ; 
funicle  7-jointed,  1-3  elongate,  equal,  3-7  obcouical,  the  seventh  free  ;  club 
elongate,  oval.  Eyes  transversely  oval,  obtuse  beneath.  Thorax  trans- 
versely cylindrical,  narrower  in  front,  base  and  apex  truncate,  lobes  short, 
with  slight  fimbrias.  Scutellum  small  triangular.  Elytra  oval,  emarginate 
at  base  and  very  slightly  wider  than  the  thorax.  Metasternum  short,  side 
pieces  indistinct,  suture  obliterated.  Intercoxal  process  moderate,  arcuate 
in  front,  second  segment  of  abdomen  as  long  as  the  the  two  following 
united,  separated  from  the  first  by  a  straight  suture.  Anterior  and  middle 
tibiae  mucronate  at  tip,  the  former  denticulate  within,  hind  tibiae  extremely 
feebly  or  not  mucronate,  the  articular  surfaces  sub-cavernous.  Tarsi  nor- 
mal.    Surface  densely  scaly  and  with  short  setie. 

As  in  all  the  genera  in  this  vicinity  the  front  is  convex  and  the  rostrum 
at  base  transversely  impressed. 

A.  grisea,  n.  sp. 

Form  oval,  surface  densely  and-  uniformly  covered  with  cinereous  scales 
and  short  setae.  Head  and  rostrum  as  long  as  the  thorax,  densely  scaly, 
scales  slightly  pearly.  Rostrum  feebly  convex  along  the  middle,  rarely 
with  a  finely  impressed  longitudinal  line  on  each  side.  Thorax  wider  than 
long,  slightly  narrower  in  front,  disc  moderately  convex,  surface  densely 
scaly  and  sparsely  setose.  Elytra  regularly  oval,  striate,  striae  moderately 
punctured,  intervals. slightly  convex,  densely  scaly  and  irregularly  biseri- 
ately  setulose.  Body  beneath  and  legs  with  similar  vestiture,  but  less 
dense.     Length  .20-. 28  inch  ;  .5-7  mm. 

This  species  resembles  somewhat  Epiccerus  formidolosus  in  form  but  is 
more  elongate. 

Occurs  in  Kansas,  Dacota,  Illinois  and  Georgia,  and  is  common. 

ORIMODEMA  n.  g. 

Rostrum  shorter  but  narrower  than  the  head,  cylindrical  at  base,  sub-quad 
rangular  at  apex,  with  a  transverse  impression  at  some  distance  in  front  of 
the  eyes,  tip  feebly  emarginate,  with  narrow  smooth  space  without  eleva- 
ted line.  Supports  of  mandibular  pieces  not  prominent.  Scrobes  deep, 
well  defined,  arcuate,  passing  rapidly  inferiorly  at  a  distance  from  the 
eyes.  Antennae  moderate  anterior,  scape  gradually  clavate,  scaly,  attain- 
ing the  middle  of  the  eye  ;  funicle  7-jointed,  1-2  large,  equal,  3-7  obcouical 
gradually  shorter,  seventh  not  broader  and  free  ;  club  oval,  acute.  Eyes 
transversely  oval,  pointed  beneath.     Thorax  cylindrical,  truncate  at  apex 


44  OTIOEHYNCHID^.  [Horn. 

and  base,  sides  very  feebly  arcuate,  lobes  prominent  and  fimbriate.  Scutel- 
Inm  short  transverse.  Elytra  elongate  oval,  gradually  attenuate  posteriorly. 
MetSsternum  short,  side  pieces  indistinct,  suture  obliterated.  Intercoxal 
process  moderate  arcuate  in  front,  second  abdominal  segment  longer  than 
the  two  following  united,  separated  from  the  first  by  a  suture  strongly 
arcuate  at  middle.  Anterior  and  middle  tibia;  mucronate  at  tip,  the  former 
denticulate  within.  Articular  surface  of  hind  tibiae  open,  the  tibiae  not 
mucronate  at  tip.     Tarsi  normal,  surface  densely  scaly  and  not  pilose. 

This  genus  appears  from  description  to  be  allied  to  Dasydema  and  Oriinus. 
The  femora  are  sub-pedunculate,  the  anterior  stouter.  The  scutellum  is 
distinct,  the  rostrum  short  and  stout,  and  the  surface  scaly  without  setae. 
In  these  particulars  it  differs  from  one  or  other  of  these  two  genera,  and 
agrees  with  them  in  having  the  corbels  open. 

O.  protracta,  n.  sp. 

Form  elongate  oval,  surface  densely  covered  with  brownish  scales  with 
slight  cupreous  lustre,  elytra  irregularly  variegated  with  paler  patches. 
Head  and  rostrum  as  long  as  the  thorax,  densely  scaly,  scales  brownish  and 
paler  intermixed.  Head  large.  Thorax  cylindrical,  base  and  apex  tinin- 
cate,  equal,  not  wider  than  long,  sides  feebly  arcuate,  disc  regularly  convex, 
surface  densely  covered  with  pale-brownish  scales.  Elytra  elongate  oval, 
regularly  attenuate  behind,  base  not  wider  than  the  thorax,  humeri 
obliquely  rounded,  sides  feebly  arcuate,  disc  feebly  convex,  feebly  striate, 
strife  with  moderate,  not  closely  placed  punctures,  intervals  flat,  densely 
covered  with  pale-brownish  scales  with  distinct  cupreous  lustre,  and  with 
paler  spaces  irregularly  placed.  Under  surface  moderately  densely  scaly, 
scales  paler  than  above.  Tibite  sparsely  fimbriate.  Length  .36  inch  ; 
9  mm. 

Occurs  in  Colorado  and  New  Mexico. 

MIMETES  Sch. 

Mimetes  Schonh.  Mant.  sec.  Cure.  p.  28. 

Rostrum  slightly  longer  and  narrower  than  the  head,  sub-quadrangular, 
slightly  dilated  and  feebly  emarginate  at  tip,  separated  from  the  front  by  a 
distinct,  arcuate  impression.  Sub-mentum  with  a  distinct  peduncle,  not 
inflexed.  Scrobes  deep,  well  defined,  rather  suddenly  arcuate  and  passing 
near  the  lower  border  of  the  ej^e.  Eyes  round,  coarsely  granulated,  feebly 
prominent.  Antennae  moderately  long  ;  scape  gradually  clavate,  attaining 
nearly  the  middle  of  the  e,ye  ;  funicle  7-jointed,  1-3  longer,  the  first  longer 
than  the  second,  5-7  obconical,  gradually  shorter  ;  club  oval,  pointed. 
Thorax  cylindrical,  sides  feeblj^  arcuate,  apex  slightly  narrower  and  with 
the  base  truncate.  Scutellum  small  triangular.  Elytra  oblong  oval,  slightly 
acuminate  posteriorly,  base  not  wider  than  the  thorax  and  broadly  emar- 
ginate, humeri  rounded.  Metasternum  moderate,  side  pieces  narrow,  suture 
distinct  in  its  entire  length.  Intercoxal  process  broad,  rounded  in  front ; 
second  segment  of  abdomen  much  longer  than  the  two  following  united, 
separated  from  the  first  by  very  strongly  arcuate  suture.     Tibiae  (except 


Horn.]  OPHRYASTIXI.  45 

posterior)  distinctly  but  feebly  mucronate.  Articular  surfiices  of  liind 
tibioe  distinctly  cavernous.     Claws  moderate,  free. 

It  is  not  without  doubt  that  I  consider  the  genus  before  me  identical  with 
Mimetes.  The  thorax  is  provided,  in  well  preserved  specimens  with  the 
post-ocular  thoracic  fimbriae  characteristic  of  the  Tanymecides  of  Lacor- 
daire.  These  hairs  are  however  very  easily  removable,  and  it  is  possible  that 
Lacordaire  may  have  had  a  specimen  before  him  similar  to  one  now  at  hand. 
The  present  species  has  been  submitted  to  Mr.  H.  Jekel,  who  agrees  with 
me  in  placing  it  near  Amomphus  and  its  allies.  The  mandibles  have  no 
prominent  support  for  the  deciduous  piece.  In  addition  to  the  characters 
given  in  the  table,  this  genus  has  a  much  less  robust  rostrum  and  the  fron- 
tal impression  is  between  the  eyes  and  not  at  a  distance  in  front  as  in 
Orimodema. 

M.  setulo3US  Lac.  Gen.  Cure,  vi,  p.  40. 

Form  oblong  oval,  surface  densely  covered  with  cinereous  scales,  varie- 
gated in  some  specimens  with  white  and  pale  cupreous.  Head  and  rostrum 
longer  than  the  thorax,  densely  punctured  and  scaly.  Antennse  rufous, 
sparsely  pubescent.  Thorax,  cylindrico-oval,  slightly  narrower  and  feebly 
constricted  in  front,  sides  moderately  arcuate,  base  truncate,  disc  feebly 
convex,  densely  punctured  and  densely  covered  with  cinereous  scales.  Ely- 
tra oblong  oval,  nearly  twice  as  long  as  wide,  sides  moderately  arcuate 
and  feebly  attenuate  behind,  base  broadly  emarginate  ;  disc  feebly  convex, 
finely  striate,  strife  not  closely  punctured,  intervals  at  sides  feebly  convex 
and  at  apex  slightly  alternating,  surface  densely  scaly,  on  each  interval  a 
row  of  short,  distant,  semi-erect  set*.  Body  beneath  densely  scaly  and 
very  sparsely  hairy.  Legs  moderately  densely  scaly,  tibite  more  distinctly 
pilose  especially  on  the  inner  side.     Length  .22  inch  ;  5.5  mm. 

Occurs  at  San  Diego  and  San  Buenaventura,  California. 

M.  seniculus,  n.  sp. 

Form  elongate  oval,  surface  densely  covered  with  intermixed  and  pale- 
brown  scales  very  densely  placed.  Head  and  rostrum  as  long  as  the  thorax, 
densely  scaly  and  with  fine  short  whitish  hairs.  Rostrum  with  feeble 
median  impression  in  front  and  an  angulate  impression  at  base  between  the 
eyes.  Thorax  oval,  longer  than  wide,  sides  moderately  arcuate,  a  slight 
constriction  at  the  sides  behind  the  anterior  margin,  apex  and  base  trun- 
cate, disc  feebly  convex  densely  scaly,  scales  pale -brownish,  a  whitish 
median  line.  Elytra  oblong  oval  nearly- twice  as  long  as  the  thorax,  and 
one-half  wider  at  middle,  moderately  convex,  densely  scaly,  scales  pale- 
brown  and  cinereous  irregularly  clouded,  surface  faintly  striate,  striae  feebly 
punctured,  intervals  flat,  with  a  single  row  of  short  whitish  hairs.  Body 
beneath  similarly  scaly,  scales  decidedly  pearly  and  with  more  evident 
hairs,  especially  at  the  middle  of  the  posterior  portion  of  the  first  ventral 
segment  (^.  Legs  pale-brownish,  similarly  but  more  sparsely  scaly 
Length  .14  inch  ;  3.5  mm. 

One  specimen  California  (Motschulsky)  ditfers  from  the  pr^eding  species 
by  its  smaller  size,  more  slender  form  and  flat  elytral  interstices. 


46  OTIOEHYIS^CHID^. 


[Horn. 


Tnis  species  was  sent  by  Motschulsky  as  Sitones  seniculus,  Maun.,  to  Dr. 
LeConte  ;  another  type  fi'om  the  same  source  sent  to  Allarcl  proved  to  be- 
long to  another  entirely  diiferent  species,  of  which  mention  will  be  made 
by  Dr.  LeConte  in  the  proper  place. 

The  original  description  by  Mannerheim  is  here  appended,  so  that  a  com- 
parison of  descriptions  may  be  readily  made. 

"Oblongus,  subcylindricus,  niger  ci)iereo-tome7itosus  et  setosus,  fronte 
canaliculata,  rostro  excavato,  thoraci  profunde  rugose  punctata,  lateribus 
vix  rotundato,  elytris  profunde  punctato-striatis,  antennarum  basi,  tibiisque 
ferrugineis.     Long.  1|  lin  ;  latit.  ^  lin. 

DIAMIMUS  n.  g. 

Rostrum  longer  and  narrower  than  the  head,  slightly  broader  in  front, 
cylindrical  at  base,  separated  from  the  head  by  a  transverse  impression,  tip 
feebly  emarginate  and  with  very  small  smooth  space.  Scrobes  deep,  well 
defined  arcuate,  directed  beneath  at  a  distance  from  the  eyes.  Antennse 
moderate,  scape  feebly  clavate,  attaining  the  middle  of  the  eye  ;  funicle  7- 
jointed,  1-3  larger,  3-7  obconical,  gradually  decreasing  in  length,  the  last 
distant  from  the  club  which  is  elongate  oval,  acute.  Eyes  broadly  oval. 
Thorax  cylindrical,  sides  feebly  arcuate,  lobes  very  short,  fimbriate. 
Scutellum  distinct.  Elytral  oblong  oval,  humeri  obliterated.  Metasternum 
short,  side  pieces  indistinct  suture  obliterated.  Intercoxal  process  mode- 
rate, truncate  in  front.  Second  segment  longer  than  the  two  following, 
separated  from  the  first  by  an  arcuate  suture.  Anterior  and  middle  tibiae 
mucronate  at  tip,  not  denticulate  within,  hind  tibiae  not  mucronate,  their 
corbels  cavernous.  Tarsi  normal.  Body  oblong  densely  scaly,  sparsely 
pilose. 

D.  subsericeus,  n.  sp. 

Form  oblong,  surface  moderately  densely  covered  with  cinereous  scales 
slightly  cupreous  and  with  micaceous  lustre  and  Avith  erect  hairs  sparsely 
placed.  Head  and  rostrum  not  longer  than  the  thorax,  moderately  densely 
scaly,  sparsely  pilose.  Thorax  cylindrical,  slightly  wider  than  long,  apex 
and  base  truncate,  sides  regularly  and  moderately  arcuate,  disc  moderately 
convex,  sparsely  punctured,  moderately  densely  scaly  and  sparsely  pilose. 
Elj''tra  oblong  oval,  sides  feebly  arcuate,  humeri  obsolete,  surface  mode- 
rately convex  and  with  rows  of  moderate,  not  closely  placed  punctures, 
intervals  flat,  moderately  densely  scaly,  each  with  a  row  of  moderately 
long  erect  hairs.  Body  beheath  less  densely  scaly  and  with  very  few 
hairs.  Legs  sparsely  scaly,  hairs  longer.  Surface  color  less  the  vestiture 
piceous.     Length  .18-.  22  inch  ;  4.5-5.5  mm. 

Occurs  in  New  Mexico  and  Colorado. 

PERITAXIA  n.  g. 

This  genus  differs  from  the  preceding  by  the  following  characters  : 
Sci'obes  more  evanescent  posteriorly,  less  arcuate  and  directed  more  in- 
feriorly.     Corbels  of  hind  tibiae  open.     Humeri  rectangular. 


Horn.] 


OPHEYASTINI.  47 


In  their  form  of  vestiture  the  two  genera  agree.  In  both  the  supports  of 
the  mandibular  pieces  are  moderately  prominent  and  obliquely  truncate  at 
tip. 

Amompliiis  (Cotiyi)  is  also  closely  allied  and  differs  especiallj^n  the  wide 
metasternal  side  pieces  with  the  suture  distinct. 

Two  species  occur  in  our  fauna. 
Ocular  lobes  distinct  but  feeble,  surface  covered 
with  very  dark  piceous  scales  and  short  cine- 
reous hair rugicollis. 

Ocular  lobes  wanting  but  replaced  by  a  decided 
fringe  of  stiff  hairs,  surface  with  cinereous 
scales  and  longer  greyish  hair hispida. 

P.  rugicollis,  n.  sp. 

Form  oblong,  color  piceous,  surface  sparsely  covered  with  inconspicuous 
scales,  not  differing  in  color  from  that  of  the  surface,  and  with  short 
brownish  hairs.  Head  and  rostrum  slightly  longer  than  the  thorax, 
sparsely  scaly  and  with  few  hairs.  Thorax  transversely  oval,  apex  and 
base  truncate,  sides  moderately  arcuate,  disc  moderately  convex,  granulato  ■ 
rugulose,  median  line  obsoletely  impressed,  surface  sparsely  scaly  and 
pilose.  Elytra  oblong  oval,  base  feebly  emarginate,  humeri  sub-rectangular, 
disc  moderately  convex,  feebly  striate  and  with  coarse  i:»unctures  mode- 
rately closely  placed,  intervals  flat,  sparcely  scaly,  bi-seriately  pilose.  Body 
beneath  and  legs  indistinctly  scaly  and  with  short  greyish  hairs.  Length 
.30  inch  ;  7.5  mm. 

Occurs  in  Colorado  and  New  Mexico. 

This  species  bears  considerable  resemblance  superficially  to  Melamoni- 
phus  niger  of  the  present  tribe. 

P.  hispida,  n.  sp. 

Oblong  oval,  piceous,  surface  scaly  and  hispid.  Head  and  rostrum  as 
long  as  the  thorax,  moderately  densely  punctured,  not  densely  scaly  and 
with  numerous,  moderately  long,  erect,  yellowish  hairs.  Thorax  oval, 
slightly  narrower  in  front,  as  broad  as  long,  sides  moderately,  base  feebly 
arcuate,  disc  moderately  convex,  surface  densely  and  rather  coarsely  punc- 
tured and  rugulose,  moderately  densely  scaly  and  hairy.  Elytra  oblong 
oval,  nearly  three  times  as  long  as  the  thorax,  moderately  convex,  surface 
deeply  striate,  striae  with  large  but  not  closely  placed  punctures,  intervals 
flat,  finely  punctured,  sparsely  scaly  and  hairy.  Body  beneath  piceous, 
spai'sely  scaly  and  with  shorter  hairs  than  the  upper  sui'face.  Legs  piceous, 
sparsely  scaly  and  hairy,  the  tibiae  with  longer  hairs.  Length  .36  inch  ; 
9  mm. 

The  scales  covering  the  surface  rather  sparsely  are  of  a  dirty-white  color 
with  a  slight  tinge  of  cupreous.  In  form  this  insect  resembles  Amomphus 
Cotiyi  but  with  the  sides  of  thorax  and  elytra  more  arcuate. 

Occurs  abundantly  in  Colorado. 


48  OTIOEHY]srCHID.^. 


THRICOMIGUS  n. 


[Horn. 


Rostrum  slightly  longer  and  narrower  than  the  head,  feebly  arcuate,  very 
slightly  dilated  at  tip,  base  cylindrioal  and  with  transverse  impression,  tip 
very  feebly  emarginate.  Scrobes  moderately  deep  in  front,  rapidly  evanes- 
cent posteriorly,  very  feebly  arcuate  and  directed  toward  the  lower  portion 
of  the  eye.  Antennae  moderate,  scape  gradually  clavate,  slightly  passing 
the  middle  of  the  eye  ;  funicle  7-jointed,  joints  1-3  longer,  the  first  longer 
than  second,  3-7  moniliform  ;  club  oval,  pointed.  Eyes  broadly  oval. 
Thorax  oval,  slightly  broader  than  long,  apex  and  base  truncate,  sides 
moderately  arcuate,  lobes  very  short,  fimbriate.  Scutellum  short,  broad. 
Elj'tra  regularly  oval.  Metasternum  short,  side  pieces  moderate,  suture 
distinct.  Intercoxal  process  moderate,  truncate  in  front,  second  segment 
longer  than  the  two  following  united,  suture  distinctly  arcuate.  Anterior 
tibiaj  denticulate  within,  this  and  the  middle  tibiaj  mucronate  at  tip.  Artic- 
ular surfaces  of  hind  tibiae  sub-cavernous,  tip  not  mucronate.  Tarsi  normal. 
Body  above  densely  scaly  and  pilose. 

The  unique  species  composing  this  genus  resembles  a  large  Phy.reh'ft 
glomerosus  but  is  relatively  more  elongate.  The  ahe  of  the  rostrum  are 
slightly  prominent,  and  the  scrobes  are  rather  better  visible  from  above 
than  beneath,  but  are  not  superior  as  in  Phyxelis,  and  do  not  difler  notably 
from  those  of  the  genera  placed  by  Lacordaire  in  the  present  tribe. 

T.  luteus,  n.  sp. 

Form  oval,  surface  densely  covered  with  pale  ochreous  scales,  in  some 
specimens  slightly  cupreous,  and  with  short  erect  hairs.  Head  and  rostrum 
as  long  as  the  thorax,  moderately  densely  scaly,  scales  at  the  sides  paler, 
and  with  erect,  short,  brownish  hairs  sparsely  placed.  Thorax  slightly 
broader  than  long,  slightly  narrower  at  apex,  sides  moderately  and  regu- 
larly arcuate,  apex  and  base  truncate,  disc  moderately  convex,  densely 
scaly,  sparsely  hairy.  Elytra  oval,  humeri  broadly  rounded,  disc  mode- 
rately convex,  striate,  strias  with  moderate,  not  densely  placed  punctures, 
intervals  flat  densely  scaly,  scales  paler  at  the  sides,  each  interval  with  two 
rather  irregular  rows  of  erect,  brownish,  short  seta3.  Body  beneath  less 
ileusely  scaly  than  above.  Legs  sparsely  scaly  and  with  longer  hairs  than 
the  body.     Length  .28-30  inch  ;  7-7.5  mm. 

Occurs  in  Bitter  Root  Valley  and  in  Colorado. 

AMISTESIA  n.  g. 

Rostrum  slightly  longer  and  narrower  than  the  head,  cylindrical  at  base 
and  with  transverse  impression,  apex  slightly  broader,  alse  verj^  feeblj- 
prominent,  tip  feebly  emarginate.  Scrobes  moderately  deep  and  Avell  de- 
fined anteriorl}',  feebly  arcuate,  rapidly  evanescent  and  feebly  limited 
posteriorly,  directed  toward  the  lower  portion  of  the  eye.  Antenna- 
moderate,  sub-apical,  scape  gradually  clavate,  attaining  the  middle  or 
posterior  border  of  the  eye,  funicle  7-jointed,  first  two  longer  and  sub-equal, 
3-7  shorter,  usually  obconical,  sometimes  longitudinally  ovate,  club  oval, 


Horn.! 


OPHRYASTINI. 


40 


pointed.  Thorax  oval,  usually  broader  than  long,  sides  moderately  arcuate, 
apex  and  base  truncate,  lobes  very  short  and  slightly  fimbriate.  Scutellum 
small,  scarcely  entering  between  the  elytra.  Elytra  oval  or  oblong  oval, 
base  not  broader  than  the  thorax,  feebly  emarginate,  humeri  feebly  rec- 
tangular or  entirely  obliterated.  Metasternum  short,  side  pieces  moderately 
wide,  suture  distinct  in  its  entire  length.  Intercoxal  process  moderate 
truncate  in  front.  Tibite  mucronate  at  tip,  articular  surfoces  of  hind  tibiae 
feebly  cavernous.  Tarsi  normal.  Body  above  densely  scaly  and  with 
extremely  short  black  setae  in  some  species,  and  moderately  long  hairs  in 
others. 

This  genus  is  a  part  of  that  included  by  Dr.  Leconte  in  DyslobuH,  the 
generic  description  of  which  appears  to  have  been  made  from  D.  segnis  and 
A.  granicollis  of  the  present  genus.  I  have  retained  the  name  Bi/slobus 
for  the  species  with  the  first  abdominal  suture  straight  as  this  character  is 
the  most  important  and  striking  in  the  description.  Regarding  the  position 
the  genus  should  occupy  in  the  groups  indicated  by  Lacordaire,  I  am  in 
some  doubt.  The  scrobes  are  lateral,  feebly  arcuate  and  directed  toward 
the  lower  front  of  the  eye.  They  do  not  become  rapidly  inferior  as  in 
sevei'al  genera  already  noted,  and  are  but  slightly  less  arcuate  and  less  de 
fined  than  in  Panscojnis. 

For  the  present,  I  prefer  to  retain  Amnesia  in  the  present  group  as  one 
of  the  leads  toward  the  PhytoscapM  to  which  the  next  genus  probably 
belongs,  Nodieles  in  turn  being  a  lead  toward  the  Eremnini. 
I  consider  (Byslobus)  granicollis  Lee.  the  type  of  the  genus. 
The  following  table  will  make  our  species  easily  known  : 
Hairs  of   the  surface,    especially  on   the   elytra,  very  short  and  incon- 
spicuous.    Humeri  rectangular,  anterior  tibiae 
moderately  denticulate. 
Body  beneath  rather  sparsely  and  not  coarsely 

punctured granicollis. 

Body  beneath  with  coarse  deep  punctures, 
denser  on  the  intercoxal  process  and  last  ven- 
tral segment decorata. 

Hairs  of  surface  very  distinct,  usiially  rather  long. 
Humeri  rectangular,    anterior    tibiae    moderately 
denticulate. 

Surface  of  thorax  even,  not  granulate ursina. 

Surface  of  thorax  granulate,  each  granule  punc- 
tured   rauca. 

Humeri  obliterated,  anterior  tibiae   feebly  dentic- 
ulate, surface  of  thorax  with  punctured  granules. 
Elytra  oval,  wider  at  middle  than  the  thorax, 
and  not  twice  as  long  as  wide. 
Thorax  not  narrowed  in  front,  granules  incon- 
spicuous, surface  densely  scaly  ;  elytra  with 
cinereous  scales alternata. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  G 


50  OTIORHY^SrCIIID^. 


[Horn. 


Thorax   not   narrowed   in  front,  granules   of 

moderate  size   and  not  very  approximate, 

surfiice  sparsely  scaly;  elytra  with  brownish 

scales sordida. 

Thorax  distinctly  narrowed  in  front,  granules 

small   and  very  indistinct,  surface  sparsely 

scaly;  elytra  with  brownish  scales deeidua. 

Elytra  oblong,  not  or  scarcely  wider  at  middle 
than  the  thorax,  and  twice  as  long  as  wide  ....  elongata. 

A.  granioollis  Lee.  (Dyslobua)  Ann.  Mag.  Nat.  Hist.  1889,  p.  380. 

Form  oval,  above  moderately  densely  covered  with  pale-brownish  scales, 
variegated  with  paler  and  darker  spots,  and  with  extremely  short  and  in- 
conspicuous black  setae.  Head  and  rostrum  as  long  as  the  thorax,  moder- 
ately densely  punctured,  scales  cupreous,  rostrum  with  a  feeble  carina 
terminating  in  a  slight  frontal  puncture.  Thorax  slightly  broader  than 
long,  apex  and  base  truncate  and  nearly  equal,  sides  moderately  ai'cuate, 
lobes  very  feeble,  disc  moderately  convex,  indistinctly  granulate,  granules 
]ninctured  at  summit,  surface  moderately  densely  scaly  and  with  A^ery  short 
setjp,  scales  pale-brownish  with  slight  cupreous  lustre,  paler  at  the  sides. 
Elytra  oval,  conjointly  emarginate  at  base,  humeri  rectangular,  disc  mode- 
rately convex,  apex  rather  suddenly  declivous,  indistinctly  striate,  strias 
with  moderately  large,  not  closely  placed  punctures,  intervals  alternately 
more  convex  especially  toward  the  declivity,  surface  densely  scaly,  scales 
pale-brownish,  variegated  with  darker  and  paler  spots,  especially  on  the 
more  convex  intervals,  each  interA^al  with  numerous  short,  black  seta>, 
very  inconspicuous.  Body  beneath  very  sparsely  scaly  at  the  sides,  and 
with  scale-like  hairs  at  middle,  surface  rather  sparsely  punctured.  Legs 
sparsely  scaly  and  with  short  hairs.     Length  .38-. 40  inch  ;  9.5-10  mm. 

Occurs  in  Vancouver  and  Oregon. 

This  species  has  somewhat  the  facies  of  Tyloderes  clirysops. 

A.  decorataLec.  (Dyslobus)  Ann.  Mag.  Nat.  Hist.  1869,  p.  381. 

Form  oblong  oval,  surface  densely  covered  with  cinereous  scales,  varie 
gated  with  brownish  and  cupreous  spaces.  Head  and  rostrum  nearly  as 
long  as  the  thorax,  surface  rather  coarsely  punctured,  moderately  densely 
scaly,  scales  cupreous  ;  rostrum  above  feebly  subcarinate.  Thorax  oval, 
slightly  broader  than  long,  apex  and  base  truncate,  the  apex  slightly 
narrower,  sides  rather  strongly  arcuate  especially  at  posterior  third,  lobes 
very  feeble  ;  disc  very  feebly  convex,  sub-rugosely  punctate  and  feebly 
granulate,  sparsely  scaly,  scales  silvery  and  cupreous  and  with  extremely 
short  inconspicuous  setge.  Elytra  oblong  oval,  conjointly  emarginate  at 
base,  humeri  rectangular,  sides  moderately  arcuate,  disc  moderately  con- 
vex, apex  rather  suddenly  declivous,  surface  striate,  striae  with  moderate, 
rather  closely  placed  punctures,  intervals  slightly  convex,  and  alternately 
slightly  more  convex  near  the  declivity,  densely  scaly,  scales  cinereous  or 
pale-brownish,  variegated  with  cupreous  and  darker  scales.    Body  beneath 


Horn.] 


OPHRYASTINI.  51 


piceous,  with  sparsely  placed  scale-like  hairs,  intercoxal  process  and  last 
ventral  segment  densely  cribrate  punctate.  Legs  sparsely  scaly  and 
pubescent.     Length  .26  inch  ;  6.5  mm. 

Although  very  different  in  appearance  from  the  preceding  species,  there 
is  some  difficulty  in  finding  characters  expressible  in  words  to  separate  the 
two.  The  thorax  of  the  present  species  is  relatively  much  broader  and  at 
its  widest  part  but  little  narrower  than  the  elytra.  The  alternation  of  eleva- 
tion of  the  intervals  is  very  little  marked  on  the  disc  and  is  but  slightly 
more  evident  near  the  declivity. 

A  variety  ?  occurs  in  Oregon  with  intervals  nearly  flat  and  similar. 

Occurs  in  Oregon  and  Vancouver. 

A.  virsina,  n.  sp. 

Form  oblong  oval,  surface  densely  covered  with  brownish  scales  and 
with  rather  long,  pale-brown  erect  hairs.  Head  and  rostrum  as  long  as  the 
thorax,  rostrum  not  subcarinate  above,  surface  punctured,  densely  covered 
with  brownish  scales  becoming  cinereous  at  the  sides  and  beneath  and 
with  moderately  long  erect  hairs.  Thorax  not  wider  than  long,  apex  and 
base  equal  and  truncate,  sides  evenly  arcuate,  lobes  very  short ;  disc  mode- 
rately convex,  not  granulate,  finely  punctured,  densely  covered  with 
brownish  scales  with  slightly  pearly  lustre,  and  paler  at  the  sides  and  with 
long  erect  hairs.  Elytra  oval,  verj'  slightly  wider  at  middle  than  the 
thorax,  base  feebly  conjointly  emarginate,  humeri  rectangular,  sides  mode- 
rately arcuate,  apex  gradually  declivous,  disc  moderately  convex,  striate, 
stria?  with  rather  coarse  punctures  closely  placed,  intervals  slightly  convex, 
densely  covered  with  brownish  scales  and  with  two  rows  of  closely  placed 
and  rather  long,  pale  brownish  hairs.  Body  beneath  and  legs  sparsely 
scaly,  scales  slightly  silvery,  and  with  moderately  long  hairs.  Abdomen 
sparsely  punctured.     Length  ,28  inch  ;  7  mm. 

One  specimen  (J^,  Oregon. 

A.  rauca,  n.  sp. 

Oblong,  surface  densely  covered  with  brownish  scales,  and  Avith  mode- 
rately long,  pale-brownish  liairs.  Head  and  rostrum  as  long  as  the  thorax, 
densely  cribrate  punctate,  rostrum  subcarinate,  surface  sparsely  scaly  and 
hairy.  Thorax  nearly  globose,  slightly  wider  than  long,  apex  truncate, 
base  slightly  arcuate,  sides  strongly  arcuate,  lobes  very  feeble,  disc  convex, 
moderately  densely  granulate,  granules  punctured  at  summit,  surface 
sparsely  scaly  and  hairy.  Elytra  oblong,  scarcely  wider  at  middle  than  the 
thorax,  base  feebly  emarginate,  humeri  rectangular,  disc  moderately  con- 
vex, obsoletely  broadly  striate,  strife  with  large,  deeply  impressed,  rather 
closely  placed  punctures,  intervals  fiat,  densely  covered  with  brownish 
scales  and  moderate  hairs  placed  in  two  rows  on  each  interval.  Body 
beneath  densely  and  coarsely  punctured  and  with  very  few  short  hairs 
Legs  sparsely  scaly  and  hairy,  hairs  longer  than  on  the  bodJ^  Length 
,22  inch  ;  5.5  mm. 

Differs  from  the  preceding  in  sculpture  and  by  the  much  shorter  hairs  of 
the  upper  surface. 

Two  specimens,  San  Francisco,  Cal. 


52  OTIORTIY^fCHIDJE. 


I  Horn. 


A.  alternata,  n.  sp. 

Oblong  oval,  surface  densely  covered  with  brownish  cinereous  hairs,  the 
alternate  intervals  of  the  elytra  paler.  Head  and  rostrum  as  long  as  the 
thorax,  sparsely  punctured  and  with  erect  yellowish  hairs,  surface  densely 
covered  with  cinereous  scales,  brownish  at  the  sides  ;  rostrum  with  a  short 
median  impression  between  the  insertions  of  the  antennte.  Thorax  cylin- 
drical, very  slightly  broader  than  long,  sides  moderately  arcuate,  surface 
densely  covered  with  cinereous  scales,  slightly  clouded  at  middle,  with  few 
erect  hairs  ;  when  deprived  of  scales  the  surface  consists  of  flattened  punc- 
tured granules,  moderately  densely  placed.  Elytra  oblong  oval,  one-third 
longer  than  wide,  humeri  obtusely  rounded,  surface  striate,  striae  with 
punctures  of  moderate  size,  not  closely  placed,  intervals  flat,  densely 
covered  with  cinereous  scales,  each  alternate  interval  darker  at  basal  half 
and  irregularly  clouded  near  the  apex,  each  interval  with  two  very  irregu- 
lar rows  of  erect  hairs.  Body  beneath  not  very  densely  covered  with 
cinereous  scales  and  with  few  hairs.  Legs  with  densely  placed  scales  and 
sparsely  placed  hairs  longer  than  those  of  the  surface.  Length  .26  inch  ; 
(5.5  mm. 

This  species  from  its  densely  scaly  surface  has  a  greater  superficial  re- 
semblance with  decorata  than  the  species  near  which  it  is  placed,  but  from 
its  having  rather  conspicuous  erect  hairs  on  the  entire  upper  surface  it 
must  be  placed  here. 

Two  specimens,  Montana. 

A.  sordida,  n.  sp. 

Form  oblong  oval,  resembling  granicolUs,  surface  denselj'  covered  with 
brownish  scales,  indistinctly  variegated  with  brownish  spots  and  with 
ratlier  short  hairs.  Head  and  rostrum  as  long  as  the  thorax,  moderately 
densely  and  coarsely  punctured,  rostrum  distinctly  sub-cainnate  above, 
surface  very  sparsely  scaly  and  hairy.  Thorax  nearly  spherical  with  apex 
and  base  truncate,  lobes  extremely  short,  disc  moderately  convex,  finely 
and  not  closely  granulate,  each  granule  punctured  at  summit,  surface 
sparsely  scaly  and  hairy.  Elytra  regularly  oval,  one-half  broader  at  middle 
than  the  thorax,  base  feebly  emarginate,  humeri  entirely  obliterated,  disc 
moderately  convex,  finely  striate,  stria?  with  elongate  punctures,  intervals 
flat,  densely  scaly  and  with  two  rows  of  pale-brownish  hairs  of  moderate 
length.  Body  beneath  moderately  densely  punctured,  sparsely  hairy. 
Legs  with  very  fcM''  scales,  sparsely  hairy.     Length  .34  inch  ;  8.5  mm. 

The  form  of  this  species  is  very  nearly  that  of  granieolUs,  but  M'ith  flat 
elytral  intervals  and  without  rectangular  humeri. 
One  specimen,  California  (or  Oregon). 

A.  decidua..  n.  sp. 

Form  oblong,  surface  moderately  covered  with  pale-brownish,  easily  re- 
moveable  scales  and  with  brownish  erect  hairs.  Head  and  rostrum  slightly 
longer  than  the  thorax,  densely  and  coarsely  punctured,  sparsely  scaly  and 
hairy,  scales  at  sides  and  tip  cupreous,  rostrum  above,  carinate.     Thorax 


Horn.]  OPHRYASTIXI.  53 

oval,  wider  than  long,  slightly  narrower  at  apex  than  base,  sides  mode- 
rately arcuate,  lobes  feeble,  apex  at  base  truncate,  disc  moderately  convex, 
granulato-rugulose,  very  sparsely  scaly  and  hairy.  Elytra  elongate  oval, 
sides  very  feebly  arcuate,  base  feebly  emarginate,  humeri  entirely  oblitera- 
ted, disc  moderately  convex,  obsoletely  striate,  and  with  moderately  coarse 
closely  placed  punctures,  intervals  slightly  convex,  moderately  densely 
covered  with  easily  removable  scales,  and  two  rows  of  irregularly  placed 
erect  brownish  hairs.  Body  beneath  moderately  densely  punctured,  with 
few  elongate  cupreous  scales  and  sparsely  hairy.  Legs  sparsely  scaly  and 
hairy,  hairs  longer  on  the  tibiaj  and  denser  near  the  tip.  Length  .34  inch  ; 
8.5  mm. 

Two  specimens,  Sauzalito,  California. 

A.  elongata,  n.  sp. 

Form  rather  slender,  elongate,  surface  densely  covered  with  brownish 
scales  and  hirsute.  Head  and  rostrum  slightly  longer  than  the  thorax, 
densely  and  coarsely  punctured,  sparsely  scaly  and  hairj',  rostrum  above 
very  feebly  sub-carinate  near  the  base.  Thorax  slightly  broader  than  long, 
apex  and  base  truncate,  sides  rather  strongly  arcuate,  disc  moderately  con- 
vex, densely  granulato-rugulose,  sparsely  scaly  and  hairy.  Elytra  scarcely 
longer  at  middle  than  the  thorax,  form  oblong,  base  feebly  emarginate, 
humeri  entirely  obliterated,  disc  moderately  convex,  feebly  striate,  stripe 
with  elongate  punctures,  intervals  nearly  flat,  moderately  densely  scaly,  and 
with  two  rows  of  erect  brownish  hairs.  Body  beneath  coarsely  and  densely 
cribrate  punctate,  surface  sparsely  hairy.  Legs  sparsely  scaly  and  hairy. 
Length  .26-.  32  inch  ;  6.5-8  mm. 

This  species  is  easily  known  by  its  elongate  form. 

Two  specimens,  California. 

PHYMATINUS    Lee. 

Phymatinus  Lee.  Ann.  Mag.  Nat.  Hist.,  1869,  p.  382. 

Rostrum  oblique,  longer  and  somewhat  narrower  than  the  head  not  sepa- 
rated from  the  head  by  a  transverse  impression,  cylindrical  at  base,  dilated 
at  apex,  al*  moderately  prominent,  tip  not  emarginate.  Scrobes  deep  in 
front,  nearly  straight,  very  rapidly  evanescent  posteriorly  and  badly  de- 
fined, directed  toward  the  lower  margin  of  the  eye.  Antennae  long,  scape 
rather  slender,  feebly  thicker  to  tip,  passing  slightly  the  middle  of  the  eye. 
funicle  7-jointed,  somewhat  longer  than  the  scape,  joints  1-2  longer  and  equal, 
3-7  obconical,  gradually  shorter,  club  oval,  pointed.  Eyes  broadly  oval, 
feebly  prominent.  Thorax  cylindrical,  apex  and  base  truncate,  sides  more 
arcuate  in  front  of  middle,  lobes  feeble.  Scutellum  very  indistinct.  Elytra 
oval,  very  suddenly  declivous  and  slightly  inflexed  posteriorly,  base  con- 
jointly emarginate,  humeri  obtuse.  Metasternum  short,  side  pieces  indis- 
tinct, suture  entirely  obliterated.  Intercoxal  process  broad,  truncate,  sec- 
ond segment  longer  than  the  two  following  united,  first  suture  strongly  ar- 
cuate at  middle.     Tibiae  mucronate  at  tip,  the  anterior  feebly  denticulate 


54  OTIORHYNCHID.^..  [Horn. 

within,  articular  surface  of  hind  tibitxj  cavernous,  tarsi  normal,  (third  joint 
broadly  bilobed)  densely  pubescent  beneath.  Surface  densely  scaly  and 
with  small  granules. 

This  genus,  as  suggested  by  Dr.  LeConte,  should  probably  be  referred 
to  Lacordaire's  group  PhytoscapJiides,  but  if  so,  I  feel  entirely  unwilling 
to  separate  that  group  from  the  present,  the  scrobes  of  the  genera  here  in- 
cluded showing  a  very  gradual  transition  in  form. 

P.  gemmatus  Lee.  {Tyloderes)  Pacif.  R.R.  Rep.  App.  i,  p.  56. 

Elongate  oval,  black,  surfiice  densely  covered  with  cinereous  scales,  with 
cupreous  and  pearly  lustre  at  the  sides,  disc  of  thorax  and  elytra  slightly 
brownish.  Head  and  rostrum  longer  than  the  thorax,  punctured  and  mode- 
rately densely  scaly,  sparsely  setulose,  rostrum  with  finely  elevated  median 
line  terminating  in  a  slight  impression.  Scape  with  scale-like  hairs.  Thorax 
cylindrical,  as  broad  as  long,  apex  and  base  truncate,  sides  arcuate,  more 
strongly  in  front  of  middle,  disc  moderately  convex  and  with  median  sulcus, 
surface  with  moderately  large  granules,  each  punctured  and  with  a  short 
stout  seta,  median  line  and  narrow  space  each  side  not  granulate,  inter- 
granular  spaces  densely  scaly,  scales  darker  on  the  disc,  pearly  and  cupre- 
ous at  the  sides.  Elytra  regularly  oval,  very  suddenly  declivous  posteriorly, 
sutural  region  more  prominent  at  declivity,  disc  feebly  convex,  striae  obso- 
lete, and  with  rows  of  indistinct  punctures,  each  alternate  interval  with 
two  indistinct  rows  of  moderate  granules,  each  punctured  and  bearing  a 
short,  stout,  curved,  black  seta,  interspaces  densely  scaly,  scales  darker  on 
the  disc,  pearly  and  cupreous  at  the  sides.  Body  beneath  and  legs  mode- 
rately densely  scaly,  sparsely  setulose,  scales  pearly  and  cupreous.  Length 
.32-.  40  inch  ;  8-10  mm. 

This  species  has  a  marked  resemblance  to  Tyloderes  chrysops  in  size, 
sculpture  and  general  aspect. 

Occurs  in  California  and  Oregon. 

NOCHELES  n.  g. 

NorJieles  Lee.  mss.  Amer.  Nat.  1874,  p.  453,  without  characters. 

Rostrum  oblique,  longer  and  narrower  than  the  head,  without  transverse 
basal  impression,  above  tlattened,  base  quadrangular,  apex  dilated,  alse 
moderately  prominent,  tip  feebly  emarginate  and  with  small  smooth  space. 
Scrobes  veiy  feebly  arcuate,  deep  in  front,  very  rapidly  evanescent  pos- 
teriorly, directed  toward  the  lower  margin  of  the  eye.  Antennae  moderate, 
scape  very  slightly  passing  the  anterior  margin  of  the  eye,  feebly  stouter  at 
tip  ;  fuuicle  7-jointed,  joints  1-2  longer  and  equal,  3-7  gradually  shorter, 
oboonical  ;  club  oval.  Eyes  oval.  Thorax  oval,  broader  than  long,  apex 
and  base  truncate,  lobes  moderate.  Scutellum  very  small.  Elytra  oval,  base 
very  feebly  emarginate,  apex  declivous.  Metasternum  short,  side  pieces 
indistinct,  sutures  entirely  obliterated,  intercoxal  process  moderate,  trun- 
cate, second  segment  as  long  as  the  two  following  united,  first  suture  arcu- 
ate. Tibiae  mucronate  at  tip,  articular  surfaces  of  hind  tibiae  cavernous, 
tarsi  normal.     Surface  densely  scaly  and  with  very  short  setae. 


Horn.] 


OPHRYASTINI.  55 


Two  species  compose  this  genus. 

Intervals  of  elj'tra  convex,  alternately  more  elevated  ;  hu- 
meri not  prominent torpidus. 

Intervals  convex,  equal ;  humeri  obtuselj^  prominent cinereus. 

N.  torpidus  Lee.  (Hi/lobius)  Pacif.  R.R.  Rep.  App.  1,  p.  55. 

Elongate  oval,  surface  densely  covered  vpith  cinereous  scales  and  with 
very  short  sub-erect  setoe.  Head  and  rostrum  longer  than  the  thorax, 
sparsely  punctured,  densely  pubescent,  and  with  very  few  short  sub-erect 
scale-like  hairs.  Rostrum  flat  above,  tip  with  small  triangular  smooth  space, 
a  fine  median  line  near  the  tip.  Thorax  slightly  broader  than  long,  sides 
in  front  rather  strongly  arcuate,  then  gradually  narrowed  to  base,  disc 
moderately  convex  with  a  rather  broad  median  channel  deeper  in  front, 
surface  sub-granular  and  very  densely  scaly  and  with  few  sub-erect  scale- 
like hairs.  Elytra  oblong  oval,  slightly  wider  at  base  than  the  thorax, 
humeri  rounded,  disc  moderately  convex,  feebly  striate,  striae  with  mode- 
rate, rather  closely  placed,  round  punctures,  each  filled  with  a  large  scale, 
intervals  convex,  the  sutural  2-4-6-8  more  elevated,  surface  densely  scaly, 
each  interval  with  one  row  of  short  scale-like  sub-erect  hairs.  Body  be 
neath  and  legs  very  densely  covered  with  scales  similar  to  those  of  the 
upper  surface.    Length  .26-. 28  inch  ;  6.5-7  mm. 

Old  specimens  of  this  species  are  frequently  brownish.  One  female  iu 
the  cabinet  of  Dr.  LeConte  has  one  of  the  short  abdominal  segments  absent. 

Not  rare  iu  Oregon. 

N.  sequalis,  n.  sp. 

Form  oblong  oval,  surface  densely  covered  with  cinereous  scales,  and 
with  short  erect  setae.  Head  and  rostrum  slightly  longer  than  the  thorax, 
densely  scaly,  sparsely  setose.  Rostrum  slightly  rounded  above,  at  tip  with 
very  small  smooth  space  and  without  median  line.  Thorax  slightly  broader 
than  long,  sides,  moderately  arcuate,  disc  feebly  convex,  median  line  feebly 
impressed,  surface  granulatd-rugulose,  moderately  densely  scaly  and  sparsely 
setose.  Elytra  oval  slightly  broader  than  the  thorax,  humeri  obtusely 
prominent,  disc  moderately  convex,  feebly  striate,  striaj  with  distant  punc- 
tures, intervals  slightly  convex,  with  a  single  row  of  setse  on  each,  surface 
densely  covered  with  cinereous  scales.  Body  beneath  and  legs  densely 
scaly,  sparsely  setulose.     Length  .24-.  26  inch  ;  6-6.5  mm. 

A  specimen  of  this  species  was  sent  to  Lacordaire,  who  pronounced  it  a 
Phyxelis.  This  view  I  cannot  accept  as  the  scrobes  are  not  superior  as  in 
that  genus  and  the  front  is  not  transversely  impressed.  It  is  one  of  those 
forms  (with  the  preceding  species)  which  renders  it  extremely  difficult  at 
times  to  divide  large  masses  of  species  into  groups  higher  than  genera. 

Occurs  from  Kansas  to  British  Columbia. 

CIMBOCERA  n.  g. 

Rostrum  somewhat  narrower  and  slightly  longer  than  the  head,  parallel 
and  sub-cylindrical  at  base,  slightly  dilated  in  front,  tip  sinuate,  at  base 


^6  OTIORHYXCHID^. 


[Horn. 


with  very  slight  transverse  impression,  front  slightly  more  convex,  alfe 
moderately  prominent.  Scrobes  moderately  deep,  short,  arcuate  and  di- 
rected rather  rapidly  inferiorly.  Antennae  moderate,  sub-apical,  scape  cla- 
vate,  passing  slightly  the  anterior  margin  of  the  eye  ;  funicle  7-jointed, 
joints  1-2  longer,  the  first  longer  than  the  second,  3-7  short,  broader  than 
long,  the  last  very  close  to  the  club  and  broader  ;  club  oval.  Eyes  oval, 
slightly  pointed  beneath.  Thorax  cylindrical,  broader  than  long,  apex  and 
base  truncate,  sides  moderately  arcuate,  lobes  feeble,  distinctly  fimbriate. 
Scutellum  invisible.  Elytra  regularly  oval.  Humeri  rounded.  Meta- 
sternum  short,  side  pieces  narrow,  suture  distinct.  Intercoxal  process 
moderate,  arcuate  in  front  ;  second  segment  of  abdomen  as  long  as  the  two 
following  united,  first  suture  strongly  arcuate  at  middle.  Anterior  tibiae 
alone  mucronate,  articular  surfaces  of  hind  tibiae  feebly  cavernous.  Tarsi 
setose  beneath,  third  joint  not  broader  than  the  second  and  very  feebly 
emarginate.     Claws  free.     Surface  scaly  and  hairy. 

The  unique  species  on  which  the  above  genus  is  founded,  resembles  in 
general  aspect  certain  elongate  males  of  Trigono scuta  pilosa.  The  genus 
by  the  form  of  its  tarsi  and  the  seventh  joint  of  funicle,  approaches  Eupa- 
goderes  of  the  group  Ophryastes,  differing  however  in  the  structure  of  the 
abdomen  and  metasternal  side  pieces. 

C.  pauper,  n.  sp. 

Oblong  oval,  piceous,  densely  covered  with  pale  brownish  scales  sparsely 
variegated  with  cinereous  and  with  ei"ect  hairs.  Head  and  rostrum  as  long 
as  the  thorax,  moderately  densely  covered  with  pale  brownish  and  cinere- 
ous scales  intermixed  and  sparsely  hairy,  rostrum  feebly  canaliculate. 
Thorax  cylindrical,  slightly  broader  than  long,  apex  and  base  truncate, 
sides  moderately  arcuate,  disc  convex,  densely  scaly  and  sparsely  hairy. 
Elytra  oval,  finely  striate,  striae  indistinctly  punctured  except  at  the  sides, 
intervals  flat,  densely  scaly,  each  with  two  rows  of  moderately  long  yel- 
lowish hairs.  Body  beneath  and  legs  much  less  densely  scaly  than  above, 
sparsely  hirsute.     Length  .24  inch  ;  6  mm. 

This  species  is  of  the  form  and  size  of  Pentelus  griseus  of  Europe,  and 
resembles  it  somewhat  in  vestiture. 

One  specimen,  Dacota. 

Group   IV.     Phyxcles. 

Rostrum  slightly  narrower  than  the  head,  alae  not  prominent.  Scrobes 
superior,  badly  defined,  feebly  arcuate,  rapidly  evanescent  posterioi'ly  and 
not  attaining  the  eyes.  Second  segment  of  the  abdomen  longer  than  the 
two  following  united,  separated  from  the  first  by  a  straight*  suture. 

The  validity  of  the  separation  of  this  as  a  distinct  grouj)  in  our  fauna 
seems  somewhat  doubtful,  the  only  character  by  means  of  which  it  may  be 
distinguished  from  the  preceding  group  is  found  in  the  position  of  the 

*  Ijacordiiire  says  arcuate.  It  really  appears  so  when  the  scales  and  crust  re- 
main, but  when  these  are  removed  the  suture  will  be  found  as  stated. 


Horn]  OPHRYASTINI.  57 

scrobes.  I  have  adopted  a  group  name  in  accordance  with  the  only  genus 
known  to  me,  as  experience  has  already  shown  that  groups  of  genera  formed 
on  the  Lacordairean  basis  are  not  at  all  times  those  which  form  from  the 
basis  adopted  in  the  present  memoir  which  is  but  a  modification  and  ampli- 
fication of  that  suggested  by  Dr.  LeConte. 
One  genus  occurs  in  our  fliuna. 

PHYXELIS  Sch. 

Phyxelis  Schonh.  Cure,  vii,  1,  p.  123. 

Rostrum  longer  and  somewhat  narrower  than  the  head,  slightly  arcuate, 
parallel,  sub-angular,  tip  slightly  emarginate  with  small  smooth  space 
limited  by  an  elevated  line.  Scrobes  visible  from  above,  moderately  deep 
badly  defined,  arcuate  and  not  attaining  the  eyes.  Antennae  moderate,  scape 
gradually  clavate  attaining  the  margin  of  the  thorax  ;  funicle  7-jointed,  1-2 
longer,  3-7  oval,  club  oval.  Eyes  oval,  slightly  oblique,  coarsely  granu- 
lated. Thorax  broader  than  long,  sides  moderatelj^  arcuate,  ocular  lobes 
feeble,  apex  and  base  truncate.  Scutellum  invisible.  Elytra  rather  broadly 
oval,  convex,  not  wider  at  base  than  the  thorax  and  feebly  emarginate, 
humeri  obtuse.  Metasternal  side  pieces  narrow  connate  without  distinct 
suture.  Intercoxal  process  broad,  truncate.  Second  segment  of  abdomen 
longer  than  the  two  following  together,  first  suture  straight.  Tibia?  mucro- 
nate,  posterior  corbels  open.  Tarsi  short,  stout,  fourth  joint  deeply  bilobed, 
claws  small,  free. 

The  presence  of  thoracic  lobes  is  the  only  character  in  the  way  of  placing 
this  genus  near  Gercopeus. 

P.  rigidus  Say  {Barynotus)  Cure,  of  N.  A.  p.  2  ;  Schonh.  Cure,  ii,  p. 
312;  Schonh.  {Phyxelis)  Cure,  vii,  1,  p.  124  ;  glomerosus  Boh.  Sch.  Cure, 
vii,  1,  p.  123  ;  setiferus  Boh.  loc.  cit.  p.  124. 

Form  ovate,  piceous,  surface  moderately  densely  scaly  and  obscured  by 
a  luteous  exudation  coating.  Head  and  rostrum  longer  than  the  thorax, 
densely  scalj^  and  sparsely  setigerous,  rostrum  at  base  with  more  or  less 
distinct  transverse  impression.  Thorax  somewhat  variable  in  form,  broader 
than  long,  sides  modei'ately  arcuate,  usually  narrowed  in  front,  base  feebly 
arcuate,  disc  convex,  median  line  more  or  less  impressed,  surface  densely 
scaly  and  sparsely  setigerous.  Elytra  broadly  oval,  base  truncate,  humeri 
sub-rectangular,  disc  moderately  convex  indistinctly  striate,  intervals  feebly 
convex,  each  with  a  single  row  of  not  closely  placed  sub-erect  setfe.  Body 
beneath  clothed  as  above,  legs  sparsely  setigerous.  Length  .14-20  inch  ; 
3.5-5  mm. 

The  color  of  the  coating  varies  very  greatly,  usually  pale  ochreous  some- 
times dark  brown,  and  it  adheres  so  closely  and  so  obscures  the  true  sculp- 
ture of  the  insect  as  to  render  it  almost  impossible  to  obtain  an  accurate 
idea  of  the  surface.  I  cannot  find  any  reason  for  distinguishing  three 
species  in  our  fauna. 

Occurs  from  Canada  to  Georgia.     Not  rare. 

PROC.  AMKR.  PHILOS.  SOC.  XV.  96.  H 


58  ■  OTIORHYNCHID^.  [Horn. 

Tribe  II.  oxiokhtxchi.m. 

Antennae  long,  scape  always  passing  the  eyes  behind.  Scrobes  variable 
but  never  at  the  same  time  linear  and  directed  interiorly.  Metasternal  side 
pieces  usually  entirely  concealed  by  the  elytra,  rarely  of  moderate  width. 
Mesosternal  epimera  small.  Elytral  striae  entire  in  all  our  genera,  tenth  or 
marginal  always  distant  from  the  preceding  in  its  entire  length. 

It  is  extremely  difficult  to  give  characters  which  define  tribes  of  Rhyn- 
chophora  with  any  degree  of  certainty,  and  it  is  frequently  found  that  a 
species  can  only  be  assigned  a  position  by  the  consideration  of  almost  its 
entire  structure  with  considerable  allowance  for  facies,  and  not  a  little,  by 
the  experience  of  the  student. 

Some  of  the  genera  placed  in  the  OtiorhyncMni  by  Lacordaire,  have  been 
removed  and  will  constitute  portions  of  tribes  in  Division  ii,  Avith  wide 
metasternal  side  pieces. 

Our  genera  form  four  groups  which  may  be  distinguished  as  follows  : 
Funicle  6-jointed  ;  articular  surface  of  hind  tibiae 
enclosed,    tips    of   hind  tibite    truncate    with 

broad  oval  space  A^^raplii. 

Funicle  7-jointed  ;  articular  surface   free,    tips  of 
hind  tibiae  with  a  single  row  of  fimbriae. 
Claws  free. 

Antennae  long  ;  outer  joints  of  funicle  long.  otiorhynchl. 

Antennae  shorter;  outer  joints  short  or  moni- 

liform Tracliyphlcel. 

Claws  connate. 

Antennae  as  in  OtiorhyncM Pcritcli. 

The  Periteliaxe  placed  after  the  Otiorhyneliiiron\  Wxc'ir  greater  similarity 
of  form  and  structure,  the  only  difference  between  the  two  tribes  is  found 
in  the  claws. 

Group  I.  A§:rai>hi. 

Antenni>>  moderate,  scape  longer  than  the  funicle  and  club,  moderately 
arcuate  ;  funicle  6-jointed  ;  club  broadly  oval  slightly  flattened,  composed 
in  great  part  of  the  first  joint  only,  the  other  joints  retracted  and  very  in 
distinct.  Tarsi  long,  slender,  third  joint  very  feebly  emarginate  and 
scarcely  wider  than  the  second.  Hind  tibiae  truncate  at  tip  with  broad, 
oval  smooth  space,  cotyloid  cavities  internal.  Anterior  tibi«  with  outer 
apical  angle  slightly  prolonged  ;  anterior  and  middle  tibiae  with  inner  angle 
mucronate. 

The  above  characters  appear  to  w^arrant  the  separation  of  Agraplms  as  a 
group  by  itself  as  suggested  by  Lacordaire  who,  however,  failed  to  notice 
the  structure  of  the  antennal  club  and  placed  the  genus  in  a  group  in 
which  the  hinder  cotyloid  cavities  are  open.  These  latter  are  really  very 
strongly  cavernous,  more  so  in  fact  than  in  any  other  genus  in  our  fauna. 

Agraplms  alone  constitutes  this  group. 


Horn]  OTIORHYNCHINI.  59 

AGRAPHUS  Sell. 

Agraphus  Schonlierr,  Gen.  Cure,  ii,  p.  640. 

Rostrum  longer  and  narrower  than  the  head,  with  an  oblique  constric- 
tion behind  the  scrobes,  tip  slightly  declivous  and  truncate.  Scrobes  dis- 
tant from  the  tip,  deep  in  front  and  enclosed  by  an  elevated  margin, 
broadly  open  and  shallow  behind.  Front  with  shallow  transverse  impres- 
sion. Eyes  oval,  oblique,  pointed  beneath.  Antennae  sub-median,  densely 
scaly,  scape  attaining  the  thorax,  funicle  much  shorter  than  the  scape,  6- 
joiuted,  joints  gradually  shorter,  sixth  rather  close  to  the  club  ;  the  latter 
oval  obtuse,  scaly,  composed  in  great  part  of  the  first  joint  only.  Thorax  oval, 
truncate  at  apex,  broadly  arcuate  at  base.  Scutellum  small,  triangular. 
Elytra  very  convex  oval,  slightly  attenuate  behind.  Legs  moderate, 
thighs  rather  sti-ongly  clavate,  tibia?  slightly  dilated  at  tip.  Tarsi  slender, 
ciliate  beneath,  three  fourths  the  length  of  the  tibiit,  joint  three  feebly 
emarginate  and  scarcely  wider  than  the_  second.  Claws  free.  Second 
segment  of  abdomen  not  longer  than  the  two  following  united,  separated 
from  the  first  by  a  nearly  straight  suture. 

A,  bellieus  Say,  (Peritelus)  Curculionida,  p.  13  ;  Am.  Ent.  i,  p.  274  ; 
leucophams  Gyll.  Sch.Gen.  Cure,  ii,  p.  641. 

Form  elongate  oval,  densely  covered  with  cinereous  scales  faintly 
clouded.  Head  and  rostrum  slightly  longer  than  the  thorax.  Thorax 
oval,  broader  than  long,  sides  moderately  arcuate,  apex  narrower  than  the 
base  and  slightly  truncate,  base  arcuate,  surface  regularly  convex,  sparsely 
and  coarsely  punctured.  Elytra  oval  slightly  attenuate  posteriorly,  not 
wider  at  base  than  the  thorax,  nearly  three  times  as  long  and  conjointly 
emarginate  at  base  ;  surface  finely  striate,  strife  distantly  punctured,  inter- 
vals very  feebly  convex.  Body  beneath  and  legs. densely  covered  with 
cinereous  scales,  and  the  tibiae  sparsely  fimbriate.  Length  .26-.  34  inch  ; 
6.5-8.5  mm. 

Occurs  from  Pennsylvania  to  Florida. 

Group  II.   otiortaynchl. 

Antennae  long,  rather  slender,  'scape  passing  slightly  the  anterior  margin 
of  the  thorax,  funicle  7  jointed,  first  two  joints  longer  than  the  others, 
joints  3-7  obconical,  moderately  long,  club  oval,  acute  at  tip.  Cotyloid 
cavities  of  hind  tibiae  terminal.     Tarsal- claws  free. 

The  longer  antennae  as  defined  by  the  form  of  the  outer  joints  of  the 
funicle,  alone  distinguish  this  group  from  the  next.     The  genera  are  not 
numerous  and  are  known  by  the  characters  given  in  the  following  table  : 
Metasternal  side  pieces  entirely  concealed  by 

the  elytra  ;  suture  obliterated.      Hind  tibiae 

with  two  short  fixed  spurs OTIORHYNCHUS. 

Metasternal  side  pieces  linear  ;  suture  distinct 

in  its  entire  length. 


60  OTIORHYNCHID.^.  [Horn. 

Hind  tibia.'  with  two  short,  fixed,  terminal 
spurs,  first  suture  of  abdomen  feebly 
arcuate.  Front  slightly  transversely  im- 
pressed   SCIOPITHES, 

Hind  tibiae  without  terminal  spurs,  first 
suture  strongly  arcuate  at  middle.  Front 

not  impressed AGRONUS. 

Metasternal  side  pieces  moderately  wide,  su- 
ture distinct. 

Hind  tibias  without  terminal  spurs  ;  first 
suture  of  abdomen  strongly  arcuate  at 

middle NEOPTOCHUS. 

The  fixed  spurs  of  the  hind  tibise  appear  not  to  have  been  noticed  by  any 
author ;  they  are  in  fact,  diflScult  to  see  in  some  species,  while  in  others, 
quite  large  and  prominent  (0.  mmtrus).  I  am  not  at  present  aware  of  the 
occurrence  outside  of  the  trilie  Otiorhynchini  of  any  similar  structure. 
Thecesternus  has  the  tibise  bimucronate.  The  female  of  Ithycerus  presents 
curious  characters.  On  each  tibia  in  addition  to  the  usual  mucro  are  two 
spurs,  one  ot  which  at  least  is  moveable.  The  male  has  the  tibiae  simply 
mucronate. 

OTIORHYNCHUS  Germ. 

Otiorhynchus  Gerniar,  Ins.  Spec.  nov.  p.  343. 

Rostrum  as  long  as  the  head,  moderately  robust,  more  or  less  dilated  at 
tip  which  is  notched  at  middle.  Antennae  anterior  long  ;  scape  long,  very 
slightly  arcuate  not  longer  than  the  funicle  and  club,  attaining  the  thorax  ; 
funicle  Tjointed,  first  two  joints  longer,  joints  3-7  obconical.  Scrobes  supe- 
rior deep,  sides  strongly  divaricate  behind.  Eyes  rounded  or  slightly  oval. 
Thora.xoval,  longer  than  wide.  Elytra  variable,  broadly  or  elongate  oval. 
Scutellum  very  small  or  indistinct.  Legs  moderately  long,  thighs  clavate, 
tibiae  feebly  arcuate  near  the  tip.  Cotyloid  cavities  of  hind  tibiae  terminal. 
Tarsi  moderately"  dilated,  spongy  pubescent  beneath,  third  joint  deeply 
bilobed.  Second  abdominal  segment  not  as  long  as  the  two  following  united, 
separated  from  the  first  by  an  arcuate  suture. 

This  genus  contains  in  our  fauna  species  which  have  been  introduced 
from  Europe,  and  which  have  established  themselves  in  the  north-eastern 
parts  of  our  territory.  Two  are  found  in  Greenland,  which  also  occur  in 
the  extreme  north  of  Europe,  their  distribution  being  due  to  natural  laws 
and  not  through  the  agency  of  commerce. 

The  species  are  known  as  follows: 
Femora  toothed. 

Tooth  very  small.     Rostrum  sulcate,  at  tip  with  a 

bifid  carina,  elytra  sulcate sulcatus. 

Tooth  large,   rostrum  not  sulcate,  tip  not  carinate, 

elytra  not  sulcate lignDus. 

Femora  not  toothed. 


Horn.]  OTIOEHYNCHINI.  61 

Tliorax  coarsely  granulate. 

Rostrum  sulcate,  elytra  with  rough  sculpture rugifrons. 

Rostrum    finely  carinate,    elytra    feebly    sculp- 
tured   maurus. 

Thorax  smooth,  finely  punctured. 

Rostrum  flat  above,  elytra  nearly  smooth monticola. 

O.  sulcatus  Fab.  Syst.  Ent.  p.  155  ;  Herbst,  Kiifer,  vi,  p.  347,  pi.  87, 
fig.  5,  ?  Sayi  Boh.  Sch.  Gen.  Cure,  vii,  p.  523.  (European  synonymy  omit 
ted). 

Form  oblong,  brown  black,  sub-opaque.  Rostrum  sulcate  at  middle,  tip 
emarginate  and  with  a  V  shaped  carina  ;  surfece  sparsely  and  coarsely 
punctured  and  sparsely  hairy.  Tliorax  sub-cylindrical,  sides  moderately 
arcuate,  widest  in  front  of  middle,  not  longer  than  wide,  surface  Avith 
rounded  tubercles  rather  closely  placed,  each  bearing  a  short  hair.  Elytra 
oblong  oval,  disc  slightly  flattened,  humeri  obtusely  rounded,  surface 
broadly  striate,  striae  coarsely  punctured,  intervals  feebly  convex  and  with 
a  row  of  shining  rounded  tubercles  rather  closely  placed  and  with  small 
patches  of  short  yelloAvish  hair  irregularly  placed.  Body  beneath  black, 
shining  and  very  sparsely  hairy.  Femora  strongly  clavate,  deeply  sinuate 
near  the  tip  and  with  a  very  small  acute  tooth.    Length  .34  inch  ;  8.5  mm. 

This  species  has  been  so  often  described  in  easily  accessible  European 
publications,  that  I  consider  it  unnecessary  to  add  to  the  above  description, 
this  with  the  table  being  sufficient  to  enable  it  to  be  recognized  by  the 
student  of  our  fauna. 

Occurs  in  Massachusetts,  Canada,  Newfoundland  and  Nova  Scotia. 

O.  ligneus  Oliv.  Ent.  v,  83,  p.  378,  pi.  31,  fig.  473. 

Form  oblong,  color  piceous,  shining.  Rostrum  flat,  emarginate  at  tip, 
surface  very  coarsely  and  closely  punctured,  between  the  eyes  a  deep 
puncture.  Thorax  nearly  spherical,  truncate  at  apex  and  base,  surface 
tuberculate,  (at  middle  the  tubercles  become  confluent  in  rows  with  deep 
sulci  between  them),  each  tubercle  punctured  at  summit  and  bearing  a 
short  hair.  Elytra  oval,  striate  at  the  sides,  striae  obsolete  on  the  disc  and 
with  coarse  punctures  closely  placed,  intervals  flat  on  the  disc  and  feebly 
mui-icate,  at  sides  moderately  convex  and  slightly  tuberculate.  Legs  piceo- 
rufous,  femora  clavate,  sinuate  near  the  tip  and  with  a  moderately  strong 
tooth  bearing  a  denticle  on  its  free  edge.  ^  Length  .20  inch  ;  5  mm. 

This  is  the  smallest  species  which  has  occurred  with  us,  and  may  be 
easily  known  by  the  femoral  armature  and  the  nearly  spherical  thorax  with 
its  peculiar  sculpture. 

Occurs  in  the  New"  England  States. 

O.  rugifrons  Gyll.  Ins.  Suec.  iii,  p.  319. 

This  species  resembles  sulcatus,  but  is  somewdiat  more  robust  and  with 
the  elytra  more  broadly  oval,  and  the  humeri  more  oblique.  The  femora 
are  moderately  sinuate  near  the  tip  and  without  tooth.     The  surface  is 


02  0TI0KHY:N^CHID^.  [Horn. 

sparsely  hairy,  tlie  hairs  of  the  elytra  being  short  and  arranged  in  a 
double  row  on  each  interval.     Length  .38  inch  ;  9.5  mm. 

Occurs  in  the  Middle  States. 

O.  maurus  Gyll,  Ins.  Suec.  iii,  p.  293  ;  nodosus  O.  Fabr.  Fauna  Gronl. 
p.  187.  ^ 

Black,  moderately  shining.  Rostrum  flat  above,  without  triangular  im- 
pression at  tip,  obtusely  carinate  at  middle,  a  slight  perforation  between  the 
eyes,  surface  coarsely  punctured,  sparsely  pubescent.  Thorax  slightly 
broader  than  long,  sides  arcuate,  apex  truncate,  base  feebly  arcuate,  surface 
densely  tuberculate  and  sparsely  pubescent.  Elytra  regularly  oval,  finely 
striate,  striae  coarsely  punctured,  intervals  flat,  slightly  wrinkled  and  with 
patches  of  scale-like  hairs  irregularly  interspersed.  Body  beneath  and 
legs  black,  femora  unarmed.     Length  .38  inch  ;  9.5  mm. 

Easily  known  bj^  the  comparatively  smooth  elytra  and  granulate  thorax. 

Occurs  in  Greenland. 

O.  monticola  Germ.  Ins.  Spec.  nov.  p.  361  ;  arcticus  O.  Fabr.  Fauna 

Gronl.  p.  188. 

Oblong  oval,  black,  shining.  Rostrum  above  flat,  sparsely  punctured, 
median  line  smooth,  a  puncture  l)etween  the  eyes.  Thorax  longer  than 
wide,  widest  in  front  of  middle,  sides  moderately  arcuate  and  very  slightly 
sinuate  near  the  base  ;  surface  shining,  finely  and  rather  sparsely  punc- 
tured. Elytra  regularly  oval,  surface  not  striate,  but  with  moderate  punc- 
tures in  indistinct  rows,  intervals  irregularly  bi  seriately  punctulate.  Body 
beneath  black,  shining,  more  rugulose  than  above.  Femora  unarmed. 
Length  .26-.  28  inch  ;  6.5-7  mm. 

The  tip  of  the  rostrum  on  each  side  of  the  emargination  is  slightly  pro- 
longed in  an  obtusely  conical  process.  The  same  may  be  seen  though  to  a 
much  less  extent  in  the  other  species.  This  species  is  easily  known  by  its 
smooth  shining  surface  and  sparsely  punctured  thorax. 

Occurs  in  Greenland. 

SCIOPITHES,  n.  g. 

Rostrum  stout,  not  longer  than  the  head,  cylindrical  and  slightly 
narrowed  toward  the  tip  which  is  emarginate  and  with  a  crescentic  im- 
pressed space,  a  very  feeble  impression  between  the  eyes.  Scrobes  superior, 
cavernous  and  of  oval  form.  Antennae  long,  scape  passing  the  anterior 
margin  of  the  thorax,  rather  slender,  gradually  thicker  toward  tip  and 
rather  strongly  arcuate  ;  funicle  7-jointed,  the  first  two  joints  moderately 
long,  joints  3-7  obconical  gradually  shorter ;  club  elongate  oval.  Eyes 
oval,  slightly  longitudinal.  Thorax  cylindrical,  sides  slightly  arcuate. 
Elytra  rather  broadly  oval,  moderately  inflated.  Scutellum  wanting. 
Metasternum  very  short.  Intercoxal  process  of  abdomen  short,  broad, 
truncate  in  front,  second  segment  but  little  longer  than  the  third  separated 
from  the  first  by  a  nearly  straight  suture.  Cotyloid  cavities  of  hind  tibiae 
terminal,  the  tibiae  with  two  short  fixed  spurs  ;  anterior  and  middle  tibiae 
finely  mucronate.     Claws  free. 


Horn.] 


OTIORHYN^CHINI.  63 


This  genus  cannot  by  the  above  characters  be  referred  to  any  other  group, 
established  by  Lacordaire,  than  the  Otiorhijnchides  vrais,  in  whicli  I  can 
find  no  genus  with  similarly  formed  antenna!  scrobes.  The  metasternal 
side  pieces  although  very  narrow  are  distinct  and  have  the  suture  plainly 
visible  in  its  entire  length. 

This  genus  represents  in  our  fauna  Sciobius  of  South  Africa. 

S.  obscurus,  n.  sp. 

Form  oral,  body  densely  covered  with  luteous  scales,  elytra  with  darker 
discal  space  limited  behind  by  a  very  sinuous  line.  Head  and  rostrum 
together  very  little  longer  than  the  thorax,  the  latter  with  an  extremely 
fine  median  carina,  surface  sparsely  punctured.  Thorax  cylindrical,  slightly 
wider  than  long,  sides  feebly  arcuate,  apex  and  base  truncate,  surface 
coarsely  but  sparsely  punctured  and  with  a  shallow  fovea  on  each  side  near 
the  base,  scales  dense,  color  luteous,  fine  median  and  broader  lateral  lines 
paler.  Elytra  oval,  very  slightly  attenuate  behind,  not  wider  at  base  than 
thorax,  one-third  longer  than  wide,  striate,  striae  punctured,  intervals  flat, 
the  middle  with  one,  the  other  with  two  rows  of  very  short  hairs,  surface 
densely  covered  with  luteous  scales,  with  large  irregular  discal,  darker 
space  limited  behind  by  a  very  irregularly  sinuous  line.  Body  beneath 
sparsely  scaly.  Legs  densely  scaly  and  sparsely  hairy.  Length  .32-.  24 
inch  ;  5.5-6  mm. 

The  style  of  coloration  of  this  species  nearly  that  of  Cercopeus.  It  may 
however,  become  entirely  unicolorous. 

Occurs  in  California,  Oregon  and  Vancouver. 

AGRONUS,  n.  g. 

Rostrum  slightly  longer  than  the  head,  and  slightly  narrower  to  tip, 
cylindrical  above,  slightly  flattened  and  with  fine  groove,  tip  truncate  with 
semicircular  naked  space.  Scrobes  superior,  very  short,  cavernous,  slightly 
converging  and  terminal.  Eyes  small,  round,  moderately  prominent. 
Antennae  long,  sub-terminal,  scape  passing  the  anterior  margin  of  thorax, 
very  gradually  thicker  to  tip  and  feebly  arcuate,  funicle  7-jointed,  first 
two  joints  longer,  joints  3-7  obconical  and  gradually  shorter;  club  elongate 
oval.  Thorax  cylindrical,  base  and  apex  truncate,  sides  very  feebly 
arcuate.  Elytra  oblong  oval,  not  wider  at  base  than  thorax.  Scutellum 
wanting.  Metasternum  short,  side  pieces  narrow,  suture  indistinct.  Inter- 
coxal  process  of  abdomen  short,  broad,  truncate,  second  segment  longer 
than  each  of  the  two  following,  separated  from  the  first  by  an  arcuate 
suture.  Cotyloid  cavities  of  hind  tibiae  terminal,  the  margin  simply  fim- 
briate with  short  spiuules  and  without  terminal  spurs.  Tibiae  not  mucro- 
nate.     Claws  small,  free. 

This  genus  resembles  the  preceding  in  most  of  its  characters,  and  difi"ers 
in  the  absence  of  spurs  to  the  hind  and  the  mucro  to  the  anterior  and  mid- 
dle tibiae  ;  tlie  less  distinct  metasternal  side  pieces  and  the  structure  of  the 
second  abdominal  segment.  Allied  to  Parameira  by  Seidlitz'  table,  difi'ers 
in  its  shorter  scrobe  and  more  slender  antennae. 


04  OTIORHYNCHrD^.  [Horn. 

A.  cinerarius,  n.  sp. 

Oblong  oval,  densely  covered  with  uniformly  colored  cinereous  scales. 
Rostrum  and  head  longer  than  the  thorax,  sparsely  punctured.  Antennae 
rufous,  sparsely  liairy.  Thorax  cylindrical,  slightly  wider  than  long,  apex 
truncate  and  slightly  narrower  than  the  base,  sides  feebly  arcuate,  surface 
sparsely  punctured.  Elytra  oval,  slightly  oblong,  striate,  striae  coarsely 
and  rather  closely  punctured,  intervals  flat,  densely  scaly  and  with  sliort, 
semi-erect  scale-like  hairs.  Body  beneath  very  sparsely  clothed  with  sliort 
hairs.  Legs  rufous,  very  sparsely  scaly  and  pubescent.  Length  .14-.  18 
inch ;  3.5-4.5  mm. 

A  rather  inconspicuous  insect  resembling  the  preceding  in  form  but  more 
elongate.  In  some  specimens,  probably  males,  the  elytral  intervals  are 
slightly  alternating  in  width. 

Collected  by  Mr.  G.  R.  Crotch  in  the  Sierra  Nevada  Mountains  of  Cali- 
fornia, near  Lakes  Tahoe  and  Donner. 

A.  deciduus,  n.  sp. 

Form  oblong,  piceous,  moderately  densely  clothed  with  scales  of  pearly 
lustre.  Head  and  rostrum  slightly  longer  than  the  thorax,  densely  scaly 
and  sparsely  punctured,  with  short,  pale,  erect  hairs  sparsely  placed.  An- 
tennae piceous.  Thorax  broader  than  long,  cylindrical,  sides  feebly  arcuate, 
disc  moderately  convex,  surface  sparsely  punctured  and  slightly  rugulose 
and  sparsely  covered  with  pearly  scales  and  erect  pubescence.  Elytra 
oblong  oval,  obsoletely  striate,  striae  with  moderately  coarse  and  close 
punctures,  intervals  flat,  not  densely  scaly  and  each  witli  tAvo  rows  of 
moderately  long  erect  pale  hairs.  Body  beneath  black,  sparsely  scaly  and 
hairy.     Legs  sparsely  scaly  and  hairy,  piceous.     Length  .16  inch  ;  4  mm. 

Of  the  same  form  as  the  preceding,  and  somewhat  recalling  the  form  of 
ScytJiropus.  Differs  from  cinerarius  by  the  pearly  scales  less  densely 
placed  and  more  deciduous  and  by  the  much  longer  hairs  covering  the 
surface. 

Collected  at  San  Francisco. 

NEOPTOCHUS  n.  g. 

Rostrum  stout,  not  longer  and  as  wide  as  the  head,  cylindrical,  flattened 
above,  tip  emarginate.  Scrobes  lateral,  terminal,  cavernous  in  front, 
shallow  and  broad  behind,  attaining  the  eyes.  Eyes  round,  moderately 
convex.  Antennae  long,  scaly  ;  scape  passing  tlie  anterior  margin  of  the 
thorax,  slender,  very  slightly  thickening  towards  the  tip,  arcuate  ;  funicle 
7-jointed,  first  two  joints  long,  joints  3-7  conical  gradually  decreasing  in 
length,  club  oval.  Thorax  short,  cylindrical,  sides  feebly  arcuate.  Scutel- 
lum  absent.  Elytra  oval,  moderately  inflated.  Metasternum  short  ;  side 
pieces  moderate,  suture  distinct.  Intercoxal  process  broad,  truncate  ; 
second  abdominal  segment  as  long  as  tlie  two  following,  separated  from  the 
first  by  a  feebly  arcuate  suture.  Cotyloid  cavities  of  hind  tibiae  terminal, 
tibiae  without  fixed  spurs  or  mucro,  anterior  and  middle  tibiae  not  mucro- 
nate.     Claws  small,  free. 


Horn. 


OTrORHYN^CULNT.  65 


The  form  of  the  ouly  species  composing  this  genus  is  much  that  of 
Ptochus. 

N.  adspersus  Boh.  {Ptochus)  Scli.  Gen.  Cure,  ii,  p.  48G  ;  Seidl.  Berl. 
Zeits.  1868.  p.  41,  (Beiheft)  ;  tesselatus  Boh.  loc.  cit.  p.  487. 

Form  oval,  robust,  densely  clothed  with  pale  cinereous  scales,  with 
obscure  spots  near  the  humeri  in  some  specimens.  Head  and  rostrum 
longer  than  the  thorax.  Rostrum  with  smooth  crescentic  space  at  tip,  above 
slightly  transversely  concave  ;  surface  sparsely  punctured  and  densely 
scaly.  Thorax  transverse,  cj'lindrical,  sides  feebly  arcuate,  l)ase  and  apex 
truncate,  surface  coarsely  punctured  and  irregular,  and  moderately  densely 
scab".  Elytra  broadly  oval,  convex,  three  times  the  length  of  thorax, 
striate,  strise  with  distant  punctures,  intervals  flat,  densely  scaly,  each 
with  a  row  of  very  short  erect  scales.  Bbdy  beneath  and  legs  denselj* 
scaly.     Length  .14-.  16  inch  ;  3.5-4  mm. 

This  species  from  its  Ptoc7ms-\ike  form  cannot  be  confounded  with  any 
other  in  the  present  group,  while  the  wider  metasternal  side  pieces  and  the 
absence  of  the  fixed  spurs  to  the  hind  tibia?,  the  lateral  scrobes  and  scaly 
antenmie  serve  to  distinguish  the  genus.  Bohemann  says  the  femora  have 
a  small  tooth,  probably  from  an  error  of  observation,  as  on  p.  487,  the 
tooth  is  not  mentioned  in  the  synonj-m. 

Appears  to  be  not  rare  in  Florida. 

This  insect  has  been  referred  to  the  genus  Ptoclmshy  Seidlitz  (loc.  supra 
cit. )  an  opinion  which  I  cannot  adopt,  the  broad  intercoxal  process  and  the 
free  claws  appear  to  me  abundantly  sufficient  to  separate  it.  Species  with, 
free  claws  are,  however,  admitted  by  Seidlitz  in  Ptochus. 

Group  III.  Peritell. 

Antennte  long,  scape  attaining  or  slightly  passing  the  anterior  margin 
of  the  thorax  ;  funicle  variable  in  length,  7-jointed  ;  club  oval.  Tarsal 
claws  connate. 

The  cotyloid  surfaces  of  the  hind  tibise  are  entirely  open  in  all  the  genera 
of  this  group,  glabrous  in  six,  scaly  in  the  remainder.  In  the  genera  in 
our  fauna  the  rostrum  is  comparatively  or  very  short,  nothing  occurs  at  all 
approximating  the  length  of  that  of  Peritelus  grtseus  of  Europe.  The 
alae  of  the  rostrum  are  divergent  in  but  one  genus,  and  then  but  feeblj'. 

Our  genera  are  as  follows  : 
First  abdominal  suture  straight.    Scrobes  lateral. 
Aire  ■  of  rostrum  slightly  divergent ;  first  two 

joints  of  funicle  equal .' PARAPTOCHUS. 

First  abdominal  suture  arcuate. 
Cotyloid  surface  of  hind  tibise  glabrous.     Eyes 
without  orbital  groove. 
Hind  coxae  open  externallj'^  ;  first  abdominal 

•">         segment  behind  them  very  short MYLACITS. 

Hind  coxre  closed  externallj'  ;  first  abdomi- 
nal segment  normal. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  I 


66 


OTIOKHYNCHID^. 


[Horn. 


Scrobes  superior  and  convergent  above. 
Rostrum  longer  than  the  head,  scrobes 
very    short  terminal  ;     body   with 

scales  and  setsE 

Rostrum  short ;  scrobes  nearly  attaining 

the  eyes  ;  body  scaly  only 

Scrobes  more  lateral  not  converging  above. 

Scape  as  long  (or  very  nearly  so)  as 

the  funicle  ;  tibia3  finely  denticulate 

within 

Scape  much  shorter  than  the  funicle  ; 

tibiffi  not  denticulate 

Cotyloid  surface  of  hind  tibiae  densely  scaly. 
Scrobes     superior,     slightly    convergent 
above. 
Eyes     indistinctly     surrounded    by    a 

groove.      Scape  feebly  arcuate 

Scrobes    lateral,    not  at    all  convergent. 
Orbital  groove  deep. 
Scape    arcuate   and     slightly    twisted  ; 
scrobes  lateral,  deep,  and  attaining 

the  eyes 

Scape  straight  or  very  feebly  arcuate. 
Scrobes  very  shallow  posteriorly,  not 

attaining  the  eyes 

Scrobes  deep,  attaining  the  eyes 


THRICOLEPIS. 
PERITELOPSIS. 

GEODERCES. 
ARAGNOMUS. 

DYSTICHEUS. 

EUCYLLUS. 


THINOXENUS. 
RHYPODES. 


The  genera  above  indicated  are  so  arranged  as  to  exhibit  a  gradual  transi- 
tion from  the  Ptochoid  forms  of  the  preceding  group  to  the  Trachyphloeoid 
forms  of  the  next.  The  rostrum  tends  to  become  shorter,  also,  as  the 
advance  is  made  from  the  first  to  the  last  genus.  The  vestiture  varies. 
In  one  species  Mylacus  saccatus  Lee,  the  surface  is  sparsely  pubescent 
without  scales,  Peritelopsis  globiventris  Lee,  is  scaly  only  without  trace  of 
hairs  or  setae  ;  all  the  remaining  species  are  densely  scaly  and  with  short 
erect  setse.  As  a  general  rule  the  metasternal  side  pieces  are  extremely 
narrow  in  the  earlier  genera  (entirely  concealed  posteriorly  in  3T!/lacus) 
and  become  more  distinctly  wider  in  the  later  genera,  the  suture,  however, 
is  so  very  indistinct  as  to  make  it  almost  impossible  to  use  the  character 
systematicallj'. 

The  scrobes  vary  greatly  in  form.  In  several  genera  they  are  plainly 
superior  and  rather  short,  converging  above.  In  others  it  is  not  easy  to 
determine  whether  to  call  them  lateral  or  superior.  When  the  scrobes  are 
much  more  distinctly  open  when  viewed  from  above  than  when  seen  from 
the  sides  they  are  called  superior  and  conversely.  None  of  our  genera 
show  a  lateral  form  of  scrobc  such  as  is  seen  in  Omias  or  Liclienopliagus. 

The  occurrence  of  short  fixed  spurs  to  the  hind  tibiae  in  addition  to  the 


Horn.] 


OTIOEHYN^CHINI.  67 


mucro  and  at  all  events  entirely  independently  of  it,  is  noticed  here.  In 
one  genus  their  occurrence  appears  to  be  sexual,  in  others  it  cannot  be  so 
referred. 

The  occurrence  of  scaly  tips  to  the  hind  tibiae  does  not  appear,  from  de- 
scriptions, in  any  foreign  genus  of  the  group.  Those  in  our  fauna  might 
form  a  distinct  group  from  the  Periteli,  and  would  have  been  so  consti- 
tuted, but  I  find  on  examination  that  LichenopTiagus  would  occupy  an  in- 
termediate place  by  the  groove  surrounding  the  eyes  and  by  the  entirely 
glabrous  tips  of  the  hind  tibia?.  It  is  also  to  be  regretted  that  one  of  our 
species  only  appears  to  be  congeneric  Avith  any  previously  described. 

PARAPTOCHUS  Seidl. 

Paraptoehus  Seidlitz,  Berl.  Zeitschr,  1868.     Beiheft,  p.  35. 

Rostrum  scarcely  as  long  as  the  head,  and  separated  by  an  arcuate  im- 
pression, robust,  sub-quadrangular,  tip  emarginate  with  a  smooth  space 
limited  by  an  angular  line,  alte  moderately  divergent.  Scrobes  deep  in 
front,  moderately  arcuate,  gradually  shallower  posteriorly  and  attaining  the 
eye.  Antenme  moderate,  sub-terminal,  scaly;  scape,  feebly  clavate,  slightly 
arcuate  and  barely  attaining  tlie  margin  of  the  thorax  ;  funicle  7-joiuted,. 
first  two  joints  longer  equal,  joints  3-7  gradually  shorter,  club  oval.  Eyes, 
round,  coarsely  granulated  and  not  prominent.  Thorax  cylindrical,  slightly 
narrower  in  front,  sides  feebly  arcuate.  Scutellum  wanting.  Elytra  oval^ 
convex.  Metasternal  side  pieces  indistinct,  narrow.  Intercoxal  process  of 
abdomen  broad,  truncate,  second  abdominal  segment  not  as  long  as  the  two. 
foUoAving  united  and  separated  from  the  first  by  a  straight  suture.  Claws 
connate. 

The  above  genus  contains  only  Peritelus  sellatus  Boh.  Tlie  straight 
first  alxlomiual  suture  excludes  it  from  the  genus  to  which  it  has  been  re- 
ferred, and  gives  it  considerable  affinity  witli  Caterectus. 

P.  ssllatus  Boh.  {Peritelua)  Eugen.  Resa  18o9,  p.  126 ;  californicus 
{Paraptoehus)  Seidl.  Berl.  Zeitschr.  1868,  Beiheft,  p.  35. 

Form  oval,  moderately  robust.  Head  and  rostrum  as  long  as  the  thorax, 
rostrum  with  fine  median  line,  surface  densely  scaly,  scales  dark  cinereous, 
with  whitish  setse  sparsely  placed.  Thorax  cylindrical,  slightly  narrower 
in  front,  broader  than  long,  sides  feebly  arcuate,  apex  and  base  truncate, 
disc  moderately  convex,  coarsely  and  deeply  punctured,  surface  densely 
scaly  and  with  erect  whitish  setpe,  scales  brownish  in  a  broad  median  band, 
pale  cinereous  at  the  sides.  Elytra  oval,  slightly  inflated,  nearly  three 
times  as  long  as  the  thorax,  striate,  strife  punctured,,  intervals  flat  with 
erect  set*  irregularly  placed,  surface  densely  covered  with  cinereous  scales 
with  large  discal  pale-brownish  space  limited  behind  by  a  sinuous  darker 
line.     Body  beneath  less  densely  scaly.     Length  .18  inch  ;  4.5  mm. 

When  deprived  of  scales  the  surface  color  is  pale  brownish.  The  an- 
terior and  middle  tibiae  are  very  feebly  mucronate  and  the  hind  tibia;  of  the 
9  have  two  short  fixed  spurs.     The  color  of  the  scales  varies  and  the  large- 


68  OTIOKIIYNCIIID^E. 


[Horn. 


discal  spot  of  the  elytra  may  become  evanescent.     The  erect  hairs  are  also 
variable,  and  assume  the  color  of  the  surface  in  which  they  are  placed. 
Collected  at  Crystal  Springs,  California,  by  Mr.  G.  R.  Crotch. 

MYLACUS  Sch. 

Mi/lacus  Schon.  Gen.  Cure,  viii,  1,  p.  144. 

Rostrum  as  long  as  the  head  and  slightly  narrower  to  the  tip  which  is 
very  feebly  eraarginate  and  with  smooth  space,  above  broadly  but  feebly 
channeled,  a  feeble  transverse  impression  at  base,  alae  feebly  prominent. 
Scrobes  superior,  very  slightly  convergent,  deep  in  front,  broadly  open  and 
very  shallow  posteriorly,  not  attaining  the  eyes.  Antennaj  moderately 
long,  sub-apical,  sparsely  hairy  ;  scape  gradually  clavate,  slightly  arcuate, 
attaining  the  anterior  margin  of  thorax  ;  funicle  7-jointed,  joints  1-2  longer, 
3-7  sub-moniliform,  club  oval.  Thorax  cylindrical,  short,  transverse. 
Scutellum  wanting.  Elytra  globoso-oval.  Metasternum  very  short,  side 
pieces  entirely  covered  posteriorly  by  the  elytra.  Hind  coxae  open  exteri- 
orljr  attaining  the  elytral  margin.  Intercoxal  process  of  abdomen  very 
broad,  truncate  ;  first  segment  deeply  emarginate  by  the  coxte  and  very 
short  behind  them  ;  second  abdominal  segment  very  little  longer  than  the 
third  separated  from  the  first  by  an  arcuate  suture.  Tibisie  not  mucronate. 
Claws  almost  entirely  connate.     Body  pubescent. 

M.  sac3atus  Lee.  {PtocJius)  Pacif.  R.  R.  Rep.  App.  1,  p.  56. 

Form  oval,  color  black,  shining,  surface  sparsely  clothed  with  short  cine- 
reous pubesence.  Head  and  rostrum  one  and  a-half  times  longer  than  the 
thorax,  moderately  densely  punctured,  sparsely  pubescent.  Thorax  trans- 
verse, twice  as  broad  as  long,  sides  feebly  arcuate,  apex  and  base  truncate, 
disc  convex,  surface  densely  and  at  the  sides  confluently  punctured,  surface 
sparsely  pubescent.  Elytra  broadly  oval  (^  or  globoso-oval  9 ,  with  strioe 
of  coarse  punctures  rather  closely  placed.  Body  beneath  black,  shining, 
metasternum  densely  punctured  at  the  sides,  abdomen  smoother,  more 
shining,  surface  sparsely  pubescent.  Legs  black,  sparsely  pubescent. 
Length  .12-16  inch  ;  3-4  mm. 

The  hind  tibiae  of  the  males  have  at  the  tip  of  the  hind  tibiie  immedi- 
ately in  front  of  the  tarsal  articulation  a  very  feeble  emargination,  the 
female  has  two  small  fixed  spurs. 

There  can  be  little  doubt  that  this  species  should  be  referred  to  Mylacus. 
The  characters  given  in  the  table  supplemented  by  those  above  given  will 
serve  to  distinguish  it  from  all  others  in  our  fauna. 

Occurs  in  California  and  Oregon. 

THRICOLEPIS  n.  g. 

Rostrum  nearly  as  long  as  the  head,  slightly  narrower  towards  the  tip 
which  is  feebly  emarginate,  alae  not  divergent.  Scrobes  superior,  short, 
terminal,  cavernous,  somewhat  reniform  in  shape  and  convergent  above. 
Antennfe  moderate,  sub-terminal,  scape  feebly  arcuate,  attaining  the  mar- 
gin of  the  thorax  ;  funicle  7-joiuted,  longer  than  the  scape,  first  two  joints 


Horn.] 


OTIOEHYNCHINI.  69 


longer  than  the  others,  joints  3-7  obconical  ;  clul)  oval.  Eyes  roimd. 
Thorax  cyUndrical,  sides  feebly  arcuate,  narrowed  in  front.  Scutelluninot 
visible.  Elytra  broadlj^  oval,  convex.  Intercoxal  process  broad,  truncate. 
Second  segment  of  abdomen  as  long  as  the  two  following  united,  separated 
from  the  first  by  a  strongly  arcuate  suture.  Tibiae  not  inucronate.  Claws 
connate.     Body  scaly  and  with  erect  setoe. 

This  genus  is  closely  allied  to  Peritelas.  It  differs  at  first  sight  in  tlie 
vestiture  of  the  body.  The  scrobes  are  much  shorter  and  very  decidedly 
convergent  above,  the  alee  not  divergent,  antennae,  especially  the  scape, 
shorter.  The  genus  is  also  allied  to  Mylacus  in  which,  however,  the  sur- 
face is  pubescent. 

Two  species  are  known  to  me,  both  Western. 

T.  inornata,  n.  sp. 

Form  oval,  moderately  robust.  Head  and  rostrum  longer  than  the 
thorax,  surface  sparsely  punctured  and  not  densely  scaly.  Antennae  rufo- 
testaceous,  sparsely  llair}^  Thorax  cylindrical  slightly  wider  than  long, 
apex  and  base  truncate,  sides  feebly  arcuate,  slightly  narrower  in  front  and 
very  feebly  constricted  at  the.  sides  behind  the  apex  ;  surface  coarsely  and 
deeply  punctured,  sparsely  scalj^  and  with  erect  hairs.  Elytra  nearly  three 
times  as  long  as  the  thorax,  oval,  slightly  inflated,  Avitli  rows  of  moderately 
coaree,  closely  placed  punctures,  intervals  flat,  moderately  densely  scaly 
and  with  a  row  of  short  black  erect  setae.  Body  beneath  sparsely  scaly, 
abdomen  sparsely  punctured  and  very  sparsely  hairy.  Legs  rufo-testa- 
ceous  or  slightly  darker,  sparsely  hairy.     Length  .14  inch  ;  3.5  mm. 

The  scales  covering  the  body  are  of  pearly  lustre  and  very  easily  re- 
moved, and  beneath  them  the  surface  is  black  and  shining.  The  elytra 
are  not  striate,  the  punctures  merely  form  regular  rows  and  are  of  large 
size  and  rather  closely  placed.  In  some  specimens  of  narrower  form,  and 
which  are  probably  males,  the  striie  of  the  disc  are  slightly  impressed  near 
the  base.  Specimens  occur  of  slightly  larger  and  smaller  size  than  the 
measurement  given. 

Occurs  from  northern  California  to  Utah. , 

T.  simulator,  n.  sp. 

Form  oval,  moderately  robust.  Head  and  rostrum  longer  than  the 
thorax,  surface  very  densely  scaly  and  with  very  short  set*.  Antennae 
pale  rufous,  slightly  hairy,  scape  sparsely  scaly.  Thorax  wider  than  long, 
sub-cylindrical,  slightly  narrowed  in  front,  base  and  apex  truncate,  sides 
feebly  arcuate,  modertely  convex,  surface  coarsely  and  rather  deeply  jDunc- 
tured,  densely  scaly,  scales  cinereous  and  with  a  broad  median  space 
darker.  Elytra  oval,  slightly  inflated,  surfiice  finely  striate  and  with 
rather  small  punctures  distantly  placed,  intervals  flat,  densely  covered  with 
cinereous  scales,  with  fuscous  spots  irregularly  placed,  a  sinuous  baud  of 
the  same  color  at  the  posterior  declivity  and  with  very  short  erect  setae  in 
a  single  row  on  each  interval.  Body  beneath  moderately  densely  scaly. 
Legs  rufous,  moderately  densely  seal 3'  and  with  short  hairs.  Length  .13 
inch  ;  3  mm. 


70  OTIOKHYNCHID^.  [Horn. 

This  species  imitates  some  of  the  least  distinctly  marked  specimens  of 
Paraptochus  sellatus.  The  scales  are  very  densely  placed  and  are  closely 
adherent  to  and  conceal  the  surface.  Their  color  is  pale,  cinereous,  ex- 
cept a  broad  median  thoracic  space  and  the  few  spots  near  the  base  of  the 
elytra  and  the  very  in-egular  line  at  the  declivity  which  are  fuscous.  This 
species  and  the  preceding  are  similar  in  fomito  Peritelm  griseiis  of  ^uroi^e, 
and  are  about  two-thirds  the  size. 

Collected  at  Fort  Tejon,  California,  by  Mr.  G.  R.  Crotch. 

PERITELOPSIS  n.  g. 

Rostrum  not  as  long  as  the  head,  slightly  flattened,  narrower  to  tip 
which  is  feebly  emarginate,  alae  not  divergent.  Scrobes  superior,  cavern- 
ous, very  slightly  arcuate,  convergent  above,  attaining  the  eyes.  Eyes 
very  slightly  oval.  Antenna}  (entirely  wanting)  apical.  Thorax  cylin- 
drical, narrower  in  front,  sides  moderately  arcuate.  Scutellum  small. 
Elytra  sub-globoso-oval.  Metasternal  side  pieces  extremely  narrow.  In- 
tercoxal  process  broad,  truncate.  Second  abdominal  segment  savrcely  as 
long  as  the  two  following  separated  from  the  first  by  an  arcuate  suture. 
Femora  moderately  clavate,  tibiai  finely  mucronate,  claws  connate.  Body 
scaly. 

This  genus  is  doubtless  very  near  Peritelus.  Theala?  of  the  rostrum  are 
not  at  all  divergent,  and  the  rostrum  very  short,  Possibly  the  genus 
might  enter  one  of  Seidlitz'  groups  of  Peritelus. 

P.  globiventris  Lee.  {Ptoclms)  Pacif.  R.  R.  Rep.  App.  1,  p.  .56. 

Form  oval,  surface  covered  but  not  densely,  with  scales  of  a  pearly 
lustre.  Head  and  rostrum  scared}"  longer  than  the  thorax,  rostrum  with  a 
smooth  space  at  tip,  limited  by  an  angulated  line,  surface  coarsely  and 
deeply  punctured  and  sparsely  seal}',  vertex  with  a  short  linear  impression. 
Thorax  broader  than  long,  slightly  narrower  in  front,  sides  moderately 
arcuate,  apex  and  base  truncate,  disc  moderately  convex,  coarsely  and 
deeply  punctured,  surface  sparsely  scaly.  Elytra  sub-globoso-oval, 
longer  than  broad,  striate,  strite  (those  of  disc  at  base  not  impressed)  with 
moderate  punctures  not  closely  placed,  intervals  at  sides  and  apex  slightly 
convex,  surface  scaly.  Body  beneath  coarsely  punctured,  sparsely  scaly, 
abdomen  very  sparsely  punctured  and  with  few  hairs.  Legs  piceous, 
sparsely  scaly  and  hairy.     Length  .16  inch  ;  4  mm. 

The  form  of  this  insect  is  nearly  that  of  Peritelus  griseus,  but  with  a 
much  shorter  rostrum.  The  scales  of  the  surface  are  not  densely  placed, 
and  the  piceous  color  of  the  body  is  readily  seen  between  them. 

One  specimen  deprived  of  antennae,  from  California. 

GEODERCES  n.  g. 

Rostrum  nearly  as  long  as  the  head,  robust,  parallel,  sub-cylindrical,  at 
base  a  feeble  arcuate  impression,  tip  feebly  emarginate,  a  smooth  space 
limited  behind  by  an  angulate  line,  alte  not  prominent.  Scrobes  lateral, 
narrow,  not  attaining  the  eyes,  crescentic  when  viewed  laterally.  Antennae 


Horn.l 


OTIORHYN^CHINI.  71 


moderately  long,  scape  veiy  nearly  as  long  as  the  funicle,  slightly  passing 
the  anterior  margin  of  thorax  :  funicle  T-jointed,  first  two  joints  longer, 
joints  8-7  elongate,  ol)Conical  gradually  shorter  ;  club  elongate  oval.  Eyes 
round,  moderately  prominent.  Thorax  oval,  truncate  at  apex  and  base. 
Scutellum  not  visible  between  the  elytra.  Elytra  oval  convex.  Meta- 
sternum  short,  side  pieces  narrow,  indistinct.  lutercoxal  process  broad, 
truncate  ;  second  segment  of  abdomen  shorter  than  the  two  following 
united,  separated  from  the  first  by  a  feebly  arcuate  suture.  Tibiic  with 
very  short  mucro  at  tip,  and  very  minutely  denticulate  internally.  Claws 
connate.     Surface  densely  scaly  and  with  short  erect  hairs. 

Tiiis  genus,  of  which  Tnichi/phkem  melaiiothrix  K))y.  is  the  type,  has 
nothing  at  all  resembling  it  outside  of  our  fauna.  It  may  be  said  to  re- 
semble TrigonosGuta  in  form  with  a  somewhat  narrower  thorax.  In  addi- 
tion to  the  minute  mucro,  the  hind  tibiaj  have,  in  addition,  two  short  fixed 
spurs.  As  these  are  found  in  all  the  specimens  before  me,  I  cannot  sup- 
pose them  to  be  sexual.  The  denticulations  of  the  tibiae  are  minute,  and 
though  sulflciently  distinct  may  easily  be  overlooked.  This  genus  seems 
by  the  table  of  Seidlitz  to  l)e  allied  to  Epiplianeus. 

Two  species  occur  in  our  fauna,  of  very  similar  aspect,  which  difler  as 
follows  : 

Second  joint  of  funicle  distinctly  longer  than  the  first  ; 
erect  hairs  of  elj'tra  very  short,   feebly  erect  and 

all  black melanothrix. 

Second  joint  slightly  shorter  than  the  first  ;  elytra  hairs 

longer,  erect  and  white  and  black  intermixed incomptus. 

G.  mslanotbrix  Kby.  (Traohi/phkeas)  Fauna  Am.  Bor.  iv,  p.  202. 

Form  oval,  robust,  densely  covered  with  brownish  scales,  with  short 
paler  markings  very  indistinct,  and  with  very  short,-  semi-erect  blackish 
hairs  very  sparsely  placed.  Head  and  rostrum  very  slightly  longer  than 
the  thorax,  a  short  impressed  line  at  vertex,  rostrum  flat,  coarsely  but 
sparsely  punctured  and  densely  scaly.  Antennae  castaneous,  sparsely 
pubescent.  Thorax  oval,  very  slightly  wider  than  long,  truncate  at  apex 
and  base,  a  slight  constriction  one-fourth  behind  the  apex,  sid3s  arcuate, 
disc  moderately  convex,  coarsely  but  very  evenly  perforato-punctate,  sur- 
face densely  covered  with  brownish  scales  with  a  narrow  paler  line  at  the 
sides.  Elytra  oval,  sub-globose,  about  one-fourth  longer  than  wide,  base 
emarginate,  humeri  oblique,  sides  sub-parallel  for  a  short  distance  at  middle, 
apex  very  obtusely  rounded,  surface  densely  covered  with  brownish  scales 
with  indistinct  paler  spaces  at  the  sides  of  the  declivity,  and  with  striiB  of 
moderate  punctures  not  very  closely  placed.  .Body  beneath  castaneous, 
coarsely  punctured  and  scaly,  abdomen  more  sparsely  punctured  and  with 
hair-like  scales.  Legs  densely  covered  Avith  brownish  scales  and  sparsely 
hairy,  femora  with  a  broad  ring  of  whitish  scales  near  the  tip.  Length 
.22-. 32  inch  ;  5.5-8  mm. 

In  those  specimens  with  the  markings  more  clearly  defined,  the  narrow 
pale  line  of  scales  at  the  side  of  the  thorax  continues  on  the  elytra,  becom 


12  OTIORHY^fCHID^.  [Horn. 

iiig  broader  as  it  passes  jiosteriorly,  where  it  is  bounded  in  front  and  behind 
by  a  line  of  darker  scales.     I  have  two  specimens  before  me  of  an  entirely 
uniform  pale-brow^n  color. 
Occurs  in  Canada  and  New  York. 

G.  incomptus,  n.  sp.* 

This  species  so  closely  resembles  melanothrix  in  form,  size  and  color 
that  it  is  unnecessary  to  add  any  description.  It  differs  only  in  the 
characters  given  in  the  short  table,  so  that  if  the  description  of  melaiiothrix 
be  repeated  with  those  changes  only,  it  will  equally  apply  to  this  one. 

Occurs  from  San  Francisco  to  Vancouver. 

ARAGNOMUS   n.  g. 

Rostrum  shorter  than  the  head,  broader  than  long,  flattened  above,  a 
feeble  transverse  impression  at  base,  tip  feebly  emarginate  and  with  a 
smooth  crescentic  space  limited  behind  by  a  curved  line.  Scrobes  sub- 
lateral,  not  convergent  above,  cavernous,  nearly  attaining  the  ej^es.  An- 
tenmie  scaly,  moderate  ;  scape  slightl}^  arcuate,  barelj^  attaining  tlie  margin 
of  tlie  thorax  ;  fiinicle  7-jointed,  nearly  one-tliird  longer  than  the  scape, 
first  joint  nearly  equal  to  the  two  following,  joints  2-7  obconical,  gradually 
decreasing  in  length  ;  club  oval.  Eyes  rather  small,  round,  not  prominent. 
Thorax  cylindrical,  sides  feebly  arcuate  at  middle  only.  Scutellum  invisi- 
ble. Elytra  oval.  Intercoxal  process  broad,  truncate.  Second  segment 
of  abdomen  as  long  as  the  two  following,  separated  from  the  first  by  an 
arcuate  suture.     Anterior  tibiai  feebly  mucronate.     Claws  connate. 

This  insect  recalls  in  smaller  size  Pavaptochus  sellatus  with  less  broad 
elytra.  The  eyes  are  more  distant  from  the  tlioracic  margin  than  is  seen 
in  any  of  the  other  genera  of  the  group,  and  the  head  and  rostrum  rather 
large  when  compared  with  the  thorax.  From  Seidlitz's  table  tliis  genus 
appears  to  occupy  a  doubtful  position.  The  frontal  impression  is  sufficiently 
distinct  to  ally  it  to  Sciobius,  etc.,  but  the  structui'e  of  the  abdomen  will 
not  warrant  such  position.  The  scrobes  are  moreover  in  such  position  that 
it  is  impossible  to  say  whether  they  should  be  called  superior  or  lateral. 
The}'  are  by  no  means  lateral  in  the  manner  of  TniGhypMoius-AniX  Licheno- 
phagus. 

A.  grisevis,  n.  sp. 

Form  oval,  robust,  surface  densely  covered  with  cinereous  scales,  with 
sparsely  placed,  erect,  black  setae,  longer  on  the  elytra.  Head  and  ros- 
trum longer  than  the  thorax,  a  slight  frontal  line,  surface  sparsely  and 
deeply  punctured,  densely  scaly,  and  with  short  erect  hairs.  Thorax 
slightly  broader  than  long,  cylindrical,  truncate  at  apex  and  base,  sides 
suddenly  arcuate  at  middle,  disc  moderately  convex,  coarsely  and  regularly 

*  No  description  of  tliis  species  has  until  now  appeared.  I  adopt  tlie 
specific  name  by  whicli  it  is  known  in  our  cabinets.  Mention  of  the  species 
first  occurs  in  a  catalogue  of  insects  collected  on  the  survej'  of  the  Pacif.  li.  R, 
where  it  is  called  Trachyplccus,    See  Pacif.  R.  R.  Rep.,  App.  1,  p.  21. 


Horn.] 


OTIORIIYNCIIINI.  73 


punctured,  densely  scalj',  a  broad  median  stripe  fuscous,  sides  cinereous, 
sparsely  setose.  Elytra  oval,  moderately  convex,  striate,  striye  witli  rather 
fine,  closely  placed  punctures,  intervals  flat ;  surface  densely  covered  with 
cinereous  scales,  darker  on  the  disc  and  with  a  transverse  very  sinuous 
line  at  the  declivity,  and  with  erect  black  setse  in  regular  rows  on  the  in- 
tervals. Body  beneath  densely  scaly.  Legs  densely  scaly  and  sparsely 
setose.     Length  .M  inch  ;  3.5  mm. 

The  surface  color  when  deprived  of  scales  is  brownish  testaceous. 

One  specimen  California,  no  special  loc.ility  known. 

DYSTICHEUS  u.  g. 

Rostrum  as  long  as  the  head,  robust,  cylindrical,  slightly  flattened,  A'ery 
slightly  arcuately  narrowed  from  base  to  tip  ;  tip  slightly  emarginate  with 
smooth  crescentic  space  limited  behind  by  a  ridge,  upper  side  moderately 
deeply  sulcate,  groove  slightly  wider  toward  the  tip.  Scrobes  superior 
very  feebly  convergent  above,  broadly  open  in  their  entire  length  (the 
sides  very  widely  divergent  behind),  very  shallow  posteriorly,  not  attaining 
the  eyes.  Eyes  moderate,  coarsely  granulated  and  surrounded  by  a  fine 
groove.  Antenna?  moderately  long,  scape  slightly  arcuate  and  passing  the 
anterior  margin  of  the  thorax  ;  fanicle  7-jointed,  one-third  longer  than  the 
scape,  first  joint  longest,  the  others  elongate  obconical,  gradually  de- 
creasing in  length ;  club  elongate,  oval,  acute.  Thorax  cylindrical, 
sides  moderately  arcuate.  Scutellum  invisible.  Elytra  regularly  oval. 
Metasternum  short,  side  pieces  narrow.  Intercoxal  pi'ocess  of  abdomen 
broad,  truncate.  Second  segment  of  abdomen  nearly  as  long  as  the  two 
following,  separated  fi'om  the  first  by  an  arcuate  suture.  Anterior  and 
middle  tibiae  with  very  short  mucro,  tips  of  hind  tibioe  scalj'.  Claws  con- 
nate.    Body  scaly  and  hispid. 

The  scrobes  in  their  entire  extent  are  more  open'  than  in  any  genus 
known  in  the  group.  The  eyes  are  less  distinctly  surrounded  by  a  groove 
than  the  following  genera.     I  can  find  no  foreign  genus  resembling  it. 

D.  insig-nis,  n.  sp. 

Form  oval.  Head  and  rostrum  as  long  as  the  thorax,  coarsely  and 
deeply  punctured,  and  rugulose,  and  sparsely  scaly  and  with  short  erect 
setse,  except  in  the  median  groove  which  is  nearly  smooth  and  extends  to 
the  base  of  the  rostrum.  Thorax  cylindrical,  slightly  narrower  in  front, 
broader  than  long,  apex  and  base  truncate,  sides  moderately  arcuate,  disc 
moderately  convex,  coarsely,  denselj^  andxleepl}^  punctured,  sparsely  scaly 
and  with  very  short  setse.  Elytra  regularly  oval,  sides  feebly  arcuate, 
striate,  strife  with  coarse,  quadrate,  closely  placed  punctures,  intervals  flat, 
densely  covered  with  cinereous  scales  of  elongate  form,  with  darker 
patches  irregularly  intermixed,  and  two  irregular  rows  of  scale-like,  short, 
erect  setse.  Body  beneath  piceous,  coarsely  and  densely  punctured,  abdo- 
men smooth,  sparsely  punctui-ed,  sparsely  scaly  and  pubescent.  Legs 
piceous,  sparsely  scaly.     Length  .16  inch  ;  4  mm. 

One  specimen  collected  in  the  southern  portion  of  California. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.   J 


74  OTIORHYN^CHID^. 


[Horn. 


EUCYLLXJS  n. 


Rostrum  not  longer  than  the  head,  robust,  slightly  narrowed  in  front, 
alse  not  divergent,  tip  emarginate  and  with  a  very  narrow  smooth  space. 
Scrobes  lateral,  moderately  deep,  feebly  arcuate,  passing  directly  back- 
wards and  attaining  the  eyes.  Antennae  long,  scaly;  scape  arcuate  and 
slightly  twisted,  passing  slightly  the  anterior  margin  of  the  thorax  ;  funicle 
7-jointed,  slightly  longer  than  the  scape  ;  joints  1-2  long,  the  second  longer 
than  the  first,  third  slightly  shorter  than  the  first,  4-7  obconical,  gradually 
shorter,  club  rather  small,  oval.  Thorax  cylindrical,  sides  moderately 
arcuate.  Scutellum  invisible.  Elytra  oblong  oval.  Intercoxal  process 
broad,  truncate,  second  segment  not  as  -long  as  the  two  following,  separated 
from  the  first  by  an  arcuate  suture.  Tips  of  hind  tibiiie  scaly,  anterior  and 
middle  tibise  mucronate.     Claws  connate.     Body  scaly  and  hispid. 

This  genus  would  be  placed  by  Seidlitz'  table  near  Trachyphlccus. 

E.  vag-ans,  n.  sp. 

Elongate  oval,  densely  scaly  and  with  greyish  setiform  hairs.  Head  and 
rostrum  nearly  as  long  as  the  thorax,  densely  covered  with  cinereous  and 
pale-brownish  scales  intermixed,  and  with  short  erect  hairs  sparsely  placed, 
surface  sparsely  punctured.  Thorax  cylindrical,  truncate  at  apex  and 
base,  slightly  wider  than  long,  sides  moderately  arcuate,  disc  moderately 
convex,  sparsely  punctured,  densely  scaly  and  sparsely  hairy.  Elytra 
elongate  oval,  twice  as  long  as  wide,  moderatelj'  convex,  finely  striate, 
striiB  witli  rather  fine  punctures  not  closely  placed  ;  intervals  flat,  densely 
scaly  and  witli  a  row  of  moderately  long  erect  hairs  on  each  interval.  Body 
beneath  densely  scaly,  and  with  very  short  sette  sparsely  placed.  Legs 
densely  scaly,  scales  cinereous,  femora  with  a  darker  ring  near  the  tip. 
Length  .20-. 28  inch  ;  5-7  mm. 

The  scales  covering  the  body  vary  in  color  from  cinereous  to  oclireous  ; 
on  the  thorax  is  a  broad  median  stripe  of  darker  color,  and  the  elytra  have 
short  brownish  lines  on  the  discal  space,  occupying  alternate  intervals. 

Occurs  in  Arizona  and  parts  of  California  adjacent. 

THINOXENUS  n.  g. 

Rostrum  not  longer  than  the  head,  robust,  not  narrower  in  front,  above 
flat,  tip  feebly  emarginate.  Scrobes  lateral,  rather  broadly  open  and  with 
divergent  sides,  posteriorly  very  shallow  and  not  attaining  the  eyes.  An- 
tennis  moderate,  sub-terminal,  scaly  ;  scape  very  feebly  arcuate,  attaining 
the  thoracic  margin  ;  funicle  7-joiuted,  slightly  longer  than  the  scape, 
joints  1-2  longer,  the  first  longer  than  the  second,  joints  3-7  obconical ; 
club  small,  elongate  oval.  Eyes  small,  round,  not  prominent.  Thorax 
oval,  slightly  broader  than  long,  truncate  at  apex  and  base.  Scutellum  in- 
distinct. Elytra  regularly  oval.  Intercoxal  process  broad,  truncate ; 
second  segment  not  longer  than  the  two  following,  separated  from  the  first 
by  an  arcuate  suture.  Hind  tibiie  scaly  at  tip,  anterior  and  middle  tibiae 
indistinctly  mucronate.     Claws  connate. 

This  genus  is  closely  allied  to  the  preceding,  and  has  similar  affinities  ; 


Horn.] 


OTIOEHYNCHrt^I.  75 


differs  in  the  form  of  the  scape  and  the  structure  of  the  funicle.  The 
scrobes  are  shorter  and  rather  widely  open  and  shallow  posteriori}',  and 
for  a  very  short  distance  converge  slightly  above. 

T.  squalens,  n.  sp  {TrdcJiypldceus  squalens  Lee.  niss.,  see  note  under 
Geod.  incoinptas). 

Form  oval,  densely  clothed  with  brownish  scales  and  with  short  black 
setiB.  Head  and  rostrum  slightly  longer  tlian  the  thorax,  densely  scaly, 
sparsely  punctured  and  setose.  Thorax  one-fourth  broader  than  long,  apex 
truncate,  base  feebly  arcuate,  sides  rather  strongly  arcuate,  disc  moderately 
convex,  densely  scaly,  sparsely  punctured  and  setose.  Elytra  one  and  a 
half  times  as  long  as  wide,  regularly  oval,  disc  moderately  convex,  indis- 
tinctly striate,  striae  not  closely  punctured,  intervals  flat,  densely  scaly, 
each  with  two  rows  of  short  setae.  Body  beneath  and  legs  densely  scaly 
sparsely  setose.     Length  .18  inch  ;  4.5  mm. 

Similar  in  form  to  Eu.  vagaiis  but  less  elongate.  In  addition  to  the 
scales,  the  surface  is  covered  with  an  exudation  which  almost  entirely 
obliterates  the  appearance  of  the  scales. 

Not  rare  near  the  sea  coast  of  California. 

RHYPODES  n.  g. 

Rostrum  short,  as  broad  as  long,  sub-quadrangular,  flattened  above,  tip 
slightly  emarginate.  Scrobes  lateral,  moderately  deep,  very  feebly  arcuate 
and  passing  directly  to  the  eyes.  Antenme  moderate,  sub-terminal,  scaly; 
scape  feebly  arcuate,  attaining  the  margin  of  the  thorax  ;  funicle  7-jointed, 
shorter  than  the  scape,  joints  1-2  longer,  the  first  longer  than-  the  second; 
joints  3-7  obconical,  short  ;  club  oval,  acuminate.  Eyes  small,  round, 
deeply  inserted,  scarcely  visible  from  above,  and  coarsely  granulated. 
Thorax  transversely  oval.  Scutellum  invisible.  Elytra  regularly  oval, 
humeri  oblique.  Intercoxal  process  broad,  truncate.  Tibiae  not  mucro- 
nate,  the  posterior  scaly  at  tip.  Claws  connate  at  base,  divergent  at  tip, 
especially  the  anterior.     Body  densely  scaly  and  with  erect  scales. 

The  form  of  the  species  of  this  genus  is  exactly  that  of  TracJiyjiJtlceus. 
It  differs  from  the  preceding  genus  in  the  form  of  the  scrobes,  and  from 
Eueyllm  by  its  shorter  form,  and  the  structure  of  the  antenna;.  The  Qjes 
are  so  feebly  prominent  and  the  orbital  groove  so  well  defined,  that  the 
eyes  are  scarcely  at  all  visible  from  above. 

Rh.  dilatatus,  n.  sp  (Trachi/phla'us  id:  Lee.  mss.  See  note  under  Geod. 
ineomptu^). 

Form  of  Trachi/pJilaus,  densely  covered  with  brownish  scales  with 
paler  spots  and  with  erect  scales  sparsely  placed.  Head  and  rostrum 
slightly  longer  than  the  thorax,  densely  scaly,  sparsely  punctured  and 
with  erect  scales.  Thorax  nearl}'  twice  as  wide  as  long,  truncate  at 
apex,  base  feebly,  sides  strongly  arcuate,  disc  moderately  convex,  covered 
with  brownish  scales,  variegated  with  paler,  and  with  erect,  short,  clavate 
scales,  sparsely  placed,  surface  sparsely  punctured.  Elytra  regularly  oval, 


76  OTIOEHYNCHIDJE.  rHorn. 

finely  striate,  strise  not  closely  punctured,  intervals  flat,  densely 
covered  with  brown  and  paler  scales  intermixed,  each  interval  with  two 
rows  of  not  closely  placed  clavate  scales.  Body  beneath  and  legs  densely 
covered  with  brownish  scales,  the  legs  with  semi-erect  broad,  paler  scales. 
Length  .14  inch  ;  3.5  mm. 

Occurs  near  the  sea  coast  at  San  Diego,  Cal. 

Rh.  brevicollis,  n.  sp. 

Form  oval,  robust,  densely  covered  with  dark  cinereous  scales,  and  with 
erect  scales  sparsely  placed.  Head  and  rostrum  as  long  as  the  thorax, 
densely  scaly,  with  sparsely  placed  erect  scales,  and  sparsely  punctured. 
Thorax  more  than  twice  as  wide  as  long,  apex  truncate,  base  feebly,  sides 
strongly  arcuate,  disc  moderately  convex,  sparsely  punctured,  densely 
scaly,  a  broad  msdian  space  brownish,  sides  cinei'eous.  Elytra  broadly 
oval,  scarcely  longer  than  wide,  sides  broadly  arcuate,  disc  moderately 
convex,  finely  striate,  striae  finely  punctured,  intervals  flat,  densely  covered 
with  dark  cinereous  scales,  each  interval  with  a  row  of  erect  clavate  scales. 
Body  beneath  more  sparsely  scaly  than  above.  Length  .10  inch  ;  2.5  mm. 

This  species  is  much  shorter  and  more  robust  than  the  preceding,  the 
scaly  vestiture  is  paler,  and  the  body  beneath  less  densely  covered.  The 
surface  color  when  deprived  of  scales  is  pale  castaneous. 

One  specimen  from  Colorado. 

Group  IV.      TBA€HYPHL.<EI. 

AntennfB  moderate,  scape  attaining  at  most  the  margin  of  the  thorax, 
usually  the  posterior  margin  of  the  eyes  ;  funicle  7-jointed,  joints  1-2 
longer  than  the  others,  joints  3-7  moniliform;  club  short,  oval.  Claws  free. 
Although  composed  of  species  ditlering  considerably  in  their  general 
aspect  from  those  of  the  preceding  group,  no  sharply-defined  characters  are 
found  by  Avhich  to  distinguish  the  two.  The  antennae  are  always  less  elon- 
gate, the  scape  long,  feebly  arcuate  and  slightly  thicker  to  the  tip,  attains 
the  thorax;  the  funicle  not  longer  than  the  scape,  has  the  outer  joints 
short,  round  and  moniliform. 

The  following  genera  occur  in  our  fauna  : 
Metathoracic  side  pieces  entirely  concealed  ;  eyes 
with  distinct  orbital  groove. 
Scrobes  superior,  very  short  and  deep  not  reach- 
ing  the   eyes  ;    anterior  and  middle  tibite 

feebly  mucronate CERCOPEUS. 

Scrobes  lateral,  long,  passing  directly  backwards 
and  enclosing  the  eyes  ;  tibiae  strongly  mu- 
cronate   CH^iETEOHUS. 

Metathoracic  side  pieces  visible  ;  suture  at  least 
moderately  distinct. 
Eyes  with  distinct  orbital  groove  ;  rostrum 

deeply  transversely  impressed  at  base..  ..TRACHYPHLCEUS. 


Horn.  ] 


otiorhyinChini.  77 


CEROOPEUS  Sdionh. 

Cercopens  Schonlierr,  Gen.  Cure,  vii,  1,  p.  154. 

Rostrum  slightly  longer  and  narrower  than  the  head,  feebly  arcuate,  an- 
gulate,  truncate  at  tip.  Scrobes  superior,  very  short,  deep.  Antennte  sub- 
terminal,  scape  feebly  arcuate  attaining  the  thorax,  funicle  7-joiuted,  joints 
1-2  longer,  the  first  stouter,  joints  3-7  short  moniliform,  club  moderate, 
oval.  Eyes  small  rounded,  surrounded  by  a  very  distinct  groove.  Thorax 
transversely  oval,  broadly  arcuate  on  the  sides,  apex  and  base  truncate. 
Elytra  oval,  very  slightly  attenuate  behind,  humeri  broadly  rounded. 
Tibiae  mucronate,  the  anterior  more  strongly.     Claws  free. 

The  deciduous  pieces  of  the  mandibles  are  cylindrical,  flattened  and  A^cty 
obtuse  at  tip.     The  scar  left  after  the  separation  is  extremely  feeble. 

O.  chrysorrhceus  Say  {Peritelus)  Cure.,  p.  13  ;  Am.  Eut.  i.  p.  274 ; 
Boh.  Sell.  Gen.  Cure,  ii,  p,  517. 

Form  oval,  color  brownish,  densely  covered  with  ochreous  scales,  elytra 
with  large  discal  space  ;  somewhat  cordiform  in  shape,  darker  in  color. 
Head  and  rostrum  moderately  densely  punctured.  Thorax  transversely 
oval,  somewhat  broader  than  long,  apex  and  base  truncate,  sides  rather 
strongly  arcuate,  disc  moderatelj'  convex,  densely  punctured,  becoming  at 
times  strigose  at  the  middle,  surface  sparsely  scaly.  Elytra  oval  slightly 
attenuate  behind,  humeri  broadly  rounded,  striate,  striae  punctured,  inter- 
vals flat,  densely  scaly  and  uniseriately  setigerous.  Body  beneath  very 
sparsely  scaly.  Legs  sparsely  scalj^  and  slightly  hairy.  Length  .12-. 20 
inch  ;  3-5  mm. 

Variable  in  the  color  of  the  scales  covering  the  surface  from  luteous  to 
brown  but  always  showing  the  darker,  discal  spot  on  the  elytra. 

Occurs  fi'om  Pennsylvania  to  Georgia. 

CH^TECHUS  n.  g. 

Rostrum  not  longer  than  the  head  and  as  stout,  parallel,  quadrangular, 
tip  truncate  and  with  small  smooth  triangular  space.  Scrobes  lateral  mode- 
rately deep,  sides  divergent  passing  above  and  beneath  the  eyes.  Eyes 
small,  round  and  with  distinct  orbital  groove.  Antennce  stout,  insertion 
sub-median,  scape  moderately  robust,  feebly  arcuate,  attaining  the  margin 
of  thorax,  funicle  7-jointed,  the  first  two  longer  and  the  first  much  stouter, 
joints  3-7  moniliform,  club  oval.  Thorax  feebly  transversely  oval.  Elytra 
oblong  oval,  sides  at  middle  parallel.  Scutellum  indistinct.  Second  seg- 
ment of  abdomen  longer  than  either  of  the  two  following,  separated  from 
the  first  by  a  feebly  arcuate  suture.  Intercoxal  process  of  first  segment  very 
broad  and  short.     Tibise  strongly  mucronate  at  tip.     Claws  free. 

This  genus  is  very  distinct  from  all  the  other  TrachypM(xi  by  the  charac- 
ters above  given  although  not  without  considerable  affinity  with  both  Tra- 
chyphloius  and  Catlwrmiocerus.  The  eyes  are  small,  round,  coarsely  granu- 
lated, surrounded  on  all  sides  with  a  very  distinct  orbital  groove.  The 
scrobes  are  deep,  pass  directly  backwards  to  the  eye,  the  upper  bounding 


78  OTIORHYNCHID^. 


[Horn. 


ridge  passing  over  the  eye  so  that  a  slight  fold  is  formed  almost  concealing 
the  eyes  from  above.  Tlie  tibiae  are  all  rather  strongly  mncrouate.  From 
both  the  above  genera  the  present  may  be  known  by  the  form  of  the 
scrobes. 

C.  setiger,  n.  sp. 

Form  oval,  color  brownish,  surface  sparsely  scaly,  elytra  with  rows  of 
clavate  scale-like  hairs  on  the  intervals.  Rostrum  densely  punctured  and 
with  an  indistinct  median  line.  Thorax  oval,  broader  than  long,  sides 
moderately  arcuate,  apex  and  base  truncate,  disc  moderately  convex, 
densely  punctured,  a  slight  post-apical  and  short  transverse  impi-ession 
slightly  behind  the  middle,  surface  with  sparse  scale-like  hairs.  Elytra 
slightly  emarginate  at  base,  oval,  sides  parallel  for  a  slight  extent,  humeri 
broadly  rounded,  surface  striate,  striiB  with  coarse  punctures,  intervals 
feebly  convex  and  with  a  row  of  scale-like,  clavate  hairs.  Body  beneath 
dark  brown,  with  few  scales,  coarsely  but  not  densely  punctured.  Legs 
brown  sparsely  clothed  with  clavate  hairs.  Lengtli  (total)  .10  inch  ; 
2.5  mm. 

This  is  the  smallest  species  known  in  our  fauna,  with  the  mandibular 
scar.  It  may  be  readily  known  by  its  color,  the  clavate  hairs,  and  the  sur- 
face almost  entirely  deprived  of  scales. 

This  insect  appears  to  be  rare.     Occurs  in  Massachusetts. 

TRACHYPHLCEUS  Germ. 

Trac?iyphl(eus  Germ.  Ins.  Spec.  Nov.,  p.  408. 

Rostrum  as  long  as  the  head,  stout,  sub-quadrangular,  slightly  arcuate 
and  with  deep  transverse  impression  at  base,  feebly  emarginate  in  front  and 
with  a  triangular  elevated  line  in  front  of  which  is  a  smooth  space.  Scrobes 
lateral,  deep,  moderately  arcuate  and  passing  directly  backward  to  the  eye'. 
Antennse  sub-median,  moderate,  scape  attaining  the  margin  of  the  thorax, 
moderately  clavate,  funicle  7-jointed,  first  joint  longest  and  robust,  second 
slendei',  joints  3-7  short,  as  broad  as  long,  becoming  gradually  broader  out- 
wardly ;  club  oval.  Eyes  small,  round,  lateral,  coarsely  granulated  and 
with  a  distinct  orbital  groove.  Thorax  transversely  oval.  Elytra  oval. 
Scutellum  not  visible.  Metathoracic  side  pieces  moderate,  suture  distinct 
in  its  entire  length.  Metasternum  short.  Intei'coxal  process  of  abdomen 
broad,  truncate;  second  abdominal  segment  not  as  long  as  the  two  following 
united,  separated  from  the  first  by  a  nearly  straight  suture.  Middle  and 
hind  tibiae  not  mucronate,  anterior  tibise  mucronate  and  with  four  or  five 
tooth-like  spines  around  the  apical  margin.     Claws  free. 

This  genus  differs  by  very  marked  characters  from  those  which  precede. 

In  the  latter  the  side  pieces  of  the  metasternum  are  entirely  concealed  by 
the  elytra.  In  this  the  eyes  are  surrounded  by  a  distinct  orbital  groove 
and  are  small,  scarcelj^  prominent  and  coarselj'  granulated.  The  rather 
deep  transverse  impression  at  the  base  of  the  rostrum,  together  with  the 
convexity  of  the  rostrum  below  this  (owing  to  its  being  slightly  arcuate) 
give  this  insect  a  very  peculiar  facies. 


Horn.]  DIROTOGXATHINI.  79 

T.  asperatus  Boh.  Sch.  Gen.  Cure,  viii,  1,  p.  116. 

Form  oval,  moderately  robust,  densely  covered  with  a  pale  ochreous 
coating  indistinctly  scaly,  variegated  on  the  elytra  with  brownish  spots. 
Head  and  rostrum  slightly  longer  than  the  thorax,  the  rostrum  with  a  deep, 
broad,  transverse  impression  at  base  beneath  which  the  rostrum  is  strongly 
convex,  surface  densely  coated,  and  with  clavate  scale-like  hairs  sparsely 
placed.  Thorax  transversely  oval,  nearly  twice  as  long  as  wide,  apex 
truncate,  base  feebly  arcuate,  sides  strongly  arcuate  and  very  slightly  con- 
stricted near  the  tip  ;  surface  moderately  convex  (sculpture  indistinct) 
densely  covered  with  pale  brownish  coating,  median  line  and  sides  paler, 
and  with  sparsely  placed  erect,  scale-like  clavate  hairs.  Elytra  oval,  sides 
very  feebly  arcuate,  apex  obtuse,  base  feebly  emarginate,  humeri  slightly 
oblique,  surftvce  distinctly  striate,  intervals  flat,  densely  covered  with  pale 
ochreous  Cvoating  variegated  with  brownish  spots  and  with  the  clavate  scale- 
like hairs  arranged  uniseriately  on  the  intervals.  Body  beneath  and  legs 
densely  coated,  the  latter  with  short  bristly  hairs.  Length  .12  inch  ;  3  mm. 

One  specimen  from  the  Middle  States. 

Tribe  IV.    dirotoonathini. 

Rostrum  longer  than  the  head,  slightly  flattened.  Mandibles  rather 
prominent.  Meutum  very  small,  trapezoidal,  not  retracted,  maxillse  and 
ligula  entirely  exposed.  Thorax  with  feeble  ocular  lobes.  Metasternal 
side  pieces  narrow  connate  with  the  sternum,  with  very  slight  traces  of 
suture. 

These  few  characters  serve  to  distinguish  this  tribe  as  represented  in  our 
f;iuna,  to  which  may  be  added  :  Mandibles  prominent,  laminiform  at  tip, 
inner  edge  strongly  bi-dentate,  outer  edge  arcuate,  with  a  groo^■e  and  a  scar- 
like space  near  the  base,  apex  truncate,  scar  terminal,  small,  very  narrow 
and  transverse,  deciduous  pieces  short,  broader  at  tip  and  obli(piely  trun- 
cate. Mentum  very  small,  supported  by  a  distinct  peduncle  which  is  rather 
short.     Metasternum  rather  short. 

I  am  entirely  unable  to  place  this  tribe  in  or  near  any  of  those  indicated 
by  Lacordaire,  further  than  to  state  that  it  is  Phanerognath  Synmeride  and 
belongs  to  the  first  section  of  the  latter  Phalanx. 

One  genus  occurs  in  our  fauna. 

DIROTOGNATHUS  n.  g. 

Rostrum  longer  than  the  head,  slightly l)roader  in  front  and  somewhat 
flattened,  straight,  tip  truncate.  Scrobes  lateral  feebly  arcuate,  very  indis- 
tinctly defined,  rapidly  wider  and  evanescent.  Antennae  moderate,  scape 
gradually  thicker,  attaining  the  posterior  margin  of  the  eyes,  funicle  7- 
jointed,  first  two  joints  longei',  the  first  longer  than  the  second,  3-7  short 
broader  than  long,  sub-moniliform,  club  elongate  oval.  Eyes  broadly  oval, 
coarsely  granulated.  Thorax  with  distinct  but  feeble  ocular  lobes  which 
are  fimbriate.  Scutellum  invisible.  Elytra  oval,  base  feebly  emarginate. 
Metasternum  short,  side  pieces  narrow,  connate,  with  scarcely  any  traces  of 


80  OTIOEHYNCHIDiE. 


[Horn. 


suture.  Intercoxal  process  broad,  truncate,  second  segment  of  abdomen 
much  longer  than  the  two  following  together,  separated  from  the  first  by  a 
strongly  arcuate  suture.  Tibite  feebly  mucronate,  corbels  of  hind  tibiae 
open.     Body  scaly  and  with  sliort  black  hairs. 

D.  sordidus,  n.  sp. 

Form  oval,  robust,  surface  moderately  densely  covered  with  dark  c^ine- 
reous  scales,  discolored  dark-brown  by  exudation,  and  with  very  short 
dark-brown  hairs.  Head  and  rostrum  as  long  as  the  thorax,  densely  scaly, 
and  with  few  short  hairs.  Thorax  oval,  broader  than  long,  slightly 
narrower  in  front,  sides  regularly  arcuate  from  apex  to  base,  apex  truncate, 
base  feebly  arcuate,  disc  convex,  densely  punctured  and  scaly,  scales  im- 
bricated, paler  in  color  along  the  median  line  and  sides,  and  with  very 
short  dark-brown  hairs  sparsely  placed.  Elytra  broadly  oval,  broader  at 
base  than  the  thorax,  very  feebly  emarginate  at  middle,  humeri  broadly 
rounded,  disc  convex,  finely  striate,  stria;  not  punctured,  intervals  flat, 
densely  scaly,  each  interval  with  two  rows  of  very  short,  black,  semi-erect 
hairs.  Body  beneath  and  legs  less  densely  scaly  and  very  sparsely  hairy, 
tibiie  sparsely  fimbriate  within.     Length  .lG-.24inch  ;  4-6  mm. 

This  insect  resembles  in  form  and  size  Phy.velis  rigidus.  The  color 
varies  in  accordance  with  the  exudation,  some  being  very  dark  cinereous, 
others  very  dark-brown.  The  males  are  slightlj^  more  elongate  than  the 
females,  and  the  sides  of  the  elytra  less  arcuate. 

Occurs  very  abundantly  in  the  desert  regions  of  Arizona  luider  damp 
logs,  and  was  also  collected  by  Mr.  Crotch  at  Frot  Mojave,  California. 

DIVISION    II. 

In  this  division  are  contained  all  those  genera  in  which  the  mesosternal 
side  pieces  are  diagonally  divided  into  two  nearly  equal  pieces,  the  outer  of 
which  (epimeron)  cuts  oif  the  inner  (episternum)  from  anj'  contact  with 
the  elytral  margin.  The  metasternal  episternum  is  usually  moderately 
broad,  the  suture  distinct  in  its  entire  length,  rarely  narrow,  and  in  one 
genus  tlie  suture  is  entirely  obliterated.  In  every  case,  however,  the 
anterior  end  of  the  metasternal  episternum  is  suddenlj'  dilated,  causing  on 
one  side  an  emargiuation  of  the  elytral  margin  (which  is,  however,  evan- 
escent), while  on  the  inner  side  an  acute  triangular  process  of  varying 
length  occupies  a  space  between  the  mesosternal  epimeron  and  the  body  of 
the  metasternum. 

The  antennal  scrobes  vary  in  form,  position  and  extent.  The  mentum 
is,  in  all  of  our  genera,  at  least  moderate  and  visible,  excepting  Eudiagogus 
and  Coleocerus  where  it  is  small  and  much  retracted,  allowing  the  parts  of 
the  mouth  to  be  visible.  The  beak  at  tip  exhibits  two  distinct  forms.  In 
the  one  the  genae  are  rather  deeply  notched  and  allow  the  base  of  the  man- 
dible to  be  exposed  ;  in  the  other  there  is  no  emargination  or  a  very  feeble 
one.  Accompanying  these  latter  characters  we  have  the  upper  portion  of 
the  beak  more  prolonged  over  the  mandibles  above  in  the  former  case, 


Horn.  J 


TANYMECINI. 


81 


while  in  the  latter  the  maadibles  are  always  greatly  exposed  above.  A 
lateral  view  of  the  beak  will  therefore  show  the  tip  to  be  obliquely  trun- 
cate in  those  with  the  emarginate  genae,  and  squarely  truncate  in  the  other 
case. 

The  scar  of  the  deciduous  mandibular  cusp  is  very  distinct  in  all  the 
genera  excepting  Coleocerus,  and  is  usually  on  the  face  of  the  mandible, 
although  in  some  genera  at  the  summit  of  an  obtuse  process. 

The  tribes  forming  this  division  are  shown  in  the  following  table  : 

Mentum  moderate,  rarely  small,  never  retracted; 

sub-mentum  not  notched  at  middle  ;  thorax 

rarely  {Pachnwus)  with  feeble  ocular  lobes. 

'Eyes  round . 

Thorax  fimbriate  at  the  sides  behind  the  eyes. 

Striae  entire TANYMECINI. 

Thorax  not  fimbriate  at  the  sides  behind  the 
eyes. 
Genaj  emarginate  behind  the  mandibles. 
Rostrum  short,  robust;  tenth  striae  conflu- 
ent  with  the  ninth  ;  claws  free,   ex- 
cept in  Apfirastus CTPHINI. 

Genae  not  or  very  feebly  emarginate  ;  tenth 
striae  free. 
Rostrum  at  least  moderately  elongate, 
scrobes  long  ;  claws  free  ;  head  not 
prolonged  behind  the  eyes  ;  articular 
surfaces  of  hind  tibiie  cavernous .  Men- 
tum large EXOPHTHAI,MIJiI. 

Rostrum  rather  short,  scrobes  short  ;  head 
prolonged  behind  the  eyes  ;  claws 
connate  ;    articular  surfaces   of   hind 

tibiae   open.      Mentum  small PHTttOBIINI. 

Mentum    small,    retracted ;    thorax   with   large 

ocular  lobes.     Eyes  transversely  gval promecopi.^i. 

The  partial  obliteration  of  the  marginal  stria  occurs  in  but  one  tribe,  in 
the  others  that  stria  is  entire  and  nearly  equallj^  distant  from  the  pre- 
ceding throughout.  The  mentum  attains  the  minimum  in  the  last  two 
groups. 

Tribe  I.     tabtymecini. 

Rostrum  moderate,  sub-angulate,  sub-parallel,  more  or  less  emarginate 
at  tip  and  at  the  sides.  Scrobes  moderately  deep,  arcuate,  passing  beneath 
the  eyes.  Antennae  moderate,  scape  moderately  long,  usually  attaining 
the  hind  margin  of  the  eye,  sometimes  attaining  the  thorax.  Thorax  witli 
a  short  row  of  bristly  hairs  behind  the  eyes  (and  in  Pachnceus  very  feebly 
lobed).  Scutellum  distinct.  Metasternum  moderately  long.  Second  seg- 
ment of  abdomen  longer  than  the  third  and  fourth  together,  and  separated 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  K 


82  OTIORHYN^CHID^. 


[Horn. 


from  the  first  by  an  arcuate  suture.  Articular  cavities  of  hind  tibia 
variable.  Claws  free.  As  represented  in  our  fauna,  this  tribe  does  not 
differ  from  the  group  indicated  by  Lacordaire,  except  in  the  addition  of 
Pandeletejus. 

Our  genera  are  as  follows  : 
Anterior  coxae  contigudias. 

Thorax   feebly  lobed   behind   the   eyes,    (the 
latter  transversely  oval,  pointed  beneath) 

andbisinuate  at  base PACHNJEUS. 

Thorax  not  lobed,  base  truncate,    eyes  round, 
or  longitudinally  oval. 
Anterior  femora  normal,  the  tibite  simple...  TANYMECUS. 

Anterior  femora  much  longer  and  stouter 
than   the   others,   the  tibise   denticulate 

Avithin HADRO  MERITS. 

Anterior  coxae  distant. 

Anterior  femora  larger  than  the  others..  PANDELETEJUS. 
The  articular  cavities  of  the  hind  tibisB  vary  in  the  genera.  They  are 
feebly  enclosed  in  Pachna-us,  more  decidedly  in  Tanymecus,  and  entirely 
open  in  the  other  two  genera.  Into  this  tribe  Polydaeris  modestus  of 
Cuba  should  enter.  It  has  very  distinct  vibrissse  composed  of  scales,  and 
the  anterior  coxse  are  separated  as  in  Pandeletejus.  The  tribe  as  thus  con- 
stituted is  not  very  homogeneous,  and  with  more  genera  would  divide  into 
well  defined  groups,  each  of  the  above  genera  constituting  a  type.  With 
our  few  genera  this  appears  unnecessary. 

PACHNJEUS  Sch. 

PacJinams  Schonh.  Cure.  Disp.  Metli.  p.  121. 

Rostrum  as  long  as  the  head,  sub  quadrangular,  slightly  declivous  at  tip 
and  emargmate,  above  obtusely  c.vrinate.  Scrobes  lateral,  deep,  well  de- 
fined, narrow,  arcuate  and  passing  directly  beneath  the  eyes.  Antennae 
sub-median,  moderate  ;  sc^pe  gradually  clavate,  attaining  the  posterior 
margin  of  the  eyes  ;  funicle  7-jointed,  first  two  joints  longer,  the  second 
somewhat  longer  than  the  first,  joiflts  3-7  sub- equal  ;  club  oval,  pointed. 
Eyes  oval,  narrower  beneath.  Thorax  broader  than  long,  narrower  in 
front,  apex  slightly  prolonged,  base  bisinuate.  Scutellum  moderate 
rounded.  Elytra  oblong  oval,  each  acute  at  tip,  base  bisinuate  and  wider 
than  the  thorax,  humeri  oblique.  Intercoxal  process  broad,  arcuate  at  tip; 
second  abdominal  segment  as  long  as  the  two  following,  separated  from 
the  first  by  a  strongly  arcuate  suture.  Tibioe  finely  mucronate  at  tip. 
Posterior  corbels  very  feebly  cavernous.  The  slight  process  at  the  side  of 
the  thorax  behind  the  eyes  scarcely  warrants  the  name  of  ocular  lobe.  The 
vibrissse  are,  however,  well  marked.  The  gense  are  extremely  feebly 
emarginate. 

P.  opalus  Oliv.  (CurcuUo)  Ent.  v,  83,  p.  339,  pi.  24,  fig.  345;  Boh. 
Sch.  Gen.  Cure,  vi,  1,  p.  425. 


Horn.] 


TATSTYMECINr.  83 


Form  oblong,  oval,  densely  covered  with  pale -blue  scales  with  a  faint 
cupreous  lustre.  Body  winged.  Head  sparsely  punctured,  densely  scaly. 
Thorax  broader  at  base  than  long,  narrower  in  front,  sides  moderately 
arcuate,  apex  faintly  lobed,  base  bisinuate,  disc  moderately  convex,  median 
line  feebly  impressed  ;  surface  densely  scaly,  median  line  and  sides  paler. 
Elytra  densely  scaly  and  with  twelve  rows  of  moderate  punctures,  the 
ninth  somewhat  confused,  intervals  indistinctly  biseriately  punctulate. 
Body  beneath  densely  scaly,  scales  larger  and  paler  than  above.  Legs 
densely  scaly,  tibiae  with  short  hairs  on  the  inner  side.  Length  .40  inch  ; 
10  mm. 

Occurs  in  Florida,  and  is  not  rare. 

The  base  of  the  elytra  is  not  only  bisinuate,  but  there  is  also  a  small 
dentiform  prominence  contiguous  to  the  thoracic  hind  angles.  Lacordaire 
mentions  this  character  for  two  Cuban  species,  but  not  for  our  own. 

P.  distans,  n.  sp. 

Form  elongate  oval,  densely  covered  with  pale  bluish  white  scales,  with 
faint  cupreous  lustre.  Head  and  rostrum  slightly  longer  than  the  thorax, 
densely  scaly.  Rostrum  with  a  fine  median  elevated  line,  ending  in  a 
frontal  puncture.  Thorax  broader  than  long,  slightly  narrower  in  front, 
sides  feebly  arcuate,  base  feebly  bisinuate,  disc  moderately  convex,  with 
large,  deep  punctures  irregularly  placed,  densely  scaly.  Scutellum  oval, 
truncate  at  base.  Elytra  oblong,  sides  feebly  arcuate,  base  very  feebly 
bisinuate,  humeri  not  dentiform  in  front,  convex,  densely  scaly  and  with 
twelve  rows  of  coarse  and  moderately  deep  punctures,  intervals  flat,  with 
a  single  row  of  minute  punctures,  each  bearing  a  longer  scale.  Body 
beneath  and  legs  denselj^  scaly,  and  with  minute  scale-like  hairs.  Length 
.  32  inch  ;  8  mm. 

Notwithstanding  the  fiict  that  the  elytra  are  not  prominent  at  the  middle 
of  the  base  of  each,  I  am  unwilling  to  separate  this  species  under  a  distinct 
generic  name.  In  the  generic  table  of  the  Tanymecides,  Lacordaire  assigns 
strongly  cavernous  corbels  to  Pachnceus.  This  is  not  so  in  either  of  oar 
species,  the  posterior  tibiae  having  at  their  tips  merely  the  double  row  of 
bristles  very  feebly  separated.  The  form  of  the  eyes  appears  to  be  a 
character  of  greater  value  in  the  arrangement  of  the  genera  of  this  group, 
after  the  form  of  the  tarsi,  than  any  that  is  made  use  of  by  Lacordaire. 
Too  much  importance  seems  to  have  been  given  to  the  form  of  the  base  of 
the  elytra,  and  it  will  be  found  that  exceptions  are  met  with  frequentlj^  in 
many  genera. 

The  species  above  described  was  collected  at  Cedar  Keys  and  Capron, 
Florida,  by  Messrs.  Schwartz  and  Hubbard. 

TANYMEOUS  Sch. 

Tanymectos  Schonh.  Cure.  Disp.  Meth.  p.  127. 

Rostrum  as  long  as  the  head,  stout,  sub-parallel,  sub-quadrangular, 
above  flattened,  tips  either  truncate  or  feebly  emarginate.  Scrobes  deep, 
feebly  arcuate,  passing  immediately  beneath  the  eyes.     Eyes  oval,  mode- 


84  OTIOEHYISrCHID^. 


[Horn. 


rately  prominent,  slightly  longitudinal.  Antennae  anterior  moderately 
long  ;  scape  gradually  clavate,  attaining  the  posterior  margin  of  the  eyes 
{confusus)  or  the  margin  of  the  thorax  (Jacmna) ;  funicle  7-jointed,  joints 
1-2  longer,  sub-equal,  3-7  obconical,  gradually  shorter,  club  elongate  oval. 
Thorax  sub-cylindrical,  longer  than  wide,  with  a  distinct  line  of  bristly 
hairs  behind  the  eyes.  Scutellum  small,  triangular.  Elytra  elongate,  oval, 
wider  at  base  than  the  thorax,  marginal  stria  distinct.  Metasternum  long 
or  moderate.  Intercoxal  process  moderate,  arcuate  in  front ;  second  seg- 
ment of  abdomen  longer  than  the  two  following,  separated  from  the  first 
by  a  feebly  arcuate  suture.  Anterior  and  middle  tibioe  feebly  denticulate 
within,  and  with  feeble  mucro  at  tip.  Articular  cavities  of  hind  tibiae 
open,  ascending  and  limited  by  an  acute  ridge  Avith  fine  spinules  on  the 
posterior  edge.     Claws  free.     Surface  densely  scaly. 

The  species  known  to  occur  in  our  fanua  are  two,  distinguished  as 
follows  : 

Rostrum  feebly  emarginate  at  tip,  not  carinate  above  ; 
scape  attaining  the  mdrgin  of  the  thorax  ;  elytra 
finely  striate  with  moderate  punctures  ;  form  dis- 
similar (^  and  $ lacsena. 

Rostrum  truncate  at  tip,  very  distinctly  but  finely  cari- 
nate above  ;  scape  attaining  the  posterior  margin 
of  the  eyes ;  elytra  similar  in  form  in  the  sexes 
and  with  rows  of  large  deep  punctures confertus. 

T;  lacsena  Hbst.  (Curculio)  Kiifer  vii,  p.  35,  pi.  100,  fig.  10;  Fahrs. 
Sch.  Gen.  Cure,  vi,  1,  p.  232  ;  leucophwus  (^  Gyll.  loc.  cit.  ii,  p.  78  ;  canes- 
cens  9  Gyll.  loc.  cit.  p.  85. 

Form  oblong,  oval,  surface  densely  covered  with  cinereous  scales.  Head 
and  rostrum  nearly  as  long  as  the  thorax,  moderately,  densely  punctui'ed, 
and  rather  sparsely  clothed  with  rather  elongate  scales.  Thorax  sub- 
cylindrical,  slightly  longer  than  wide,  slightly  narrower  in  front,  sides 
moderately  arcuate,  disc  moderately  convex,  densely  punctured,  mode- 
rately, densely  scaly,  scales  cinereous,  with  slight  cupreous  tinge,  a  badly- 
defined  darker  line  at  the  sides.  Elytra  oblong,  oval,  (longer  and  slightly 
dehiscent  at  tip  in  male)  sides  feebly  arcuate  and  gradually  attenuate  to  tip, 
humeri  obtusely  rounded  ;  disc  moderately  convex,  feebly  striate,  striae 
with  moderate  punctures,  not  closely  placed,  surface  moderately  densely 
covered  with  cinereous  scales,  each  altei-nate  inteiwal  at  base  slightly 
darker.  Body  beneath  and  legs  moderately  densely  scaly.  Length  .32  9 
-  36  c?*  ;  8-9  mm. 

Occurs  in  Georgia  and  Florida. 

T.  confertus  Gyll.  Sch.  Gen.  Cure,  ii,  p.  88  ;  confusus  Say,  Descr. 
Cure.  p.  9  ;  Am.  Ent.  1,  p.  269. 

Head  and  rostrum  nearly  as  long  as  the  thorax,  sparsely  scaly,  more 
densely  over  the  eyes,  surface  densely  punctured,  rostrum  feebly  sub-cari- 
nate.       Thorax   cylindrical,    slightly   narrowed   in   front,    sides  in  front 


Horn.]  TAIs^YMP:ClJSri.  85 

slightly  arcuate,  posteriorly  sub-parallel,  disc  moderately  convex,  densely 
inuictured,  sparsely  scaly.  Scutellum  white.  Elytra  oblong,  sides  sub- 
parallel,  disc  moderately  convex,  obsoletely  striate  and  with  coarse,  deep, 
moderately  closely  placed  punctures,  gradually  becoming  smaller  to  tip  ; 
surface  moderately,  densely  covered  with  cinereous  scales,  irregularly 
mottled  with  brown.  Body  beneath  and  legs  moderately  densely  scaly. 
Length  .20-.  28  inch  ;  5-7  mm. 

The  thorax  has  a  median  and  lateral  space  partially  deprived  of  scales, 
giving  the  surface  a  vittate  appearance.  In  specimens  from  the  Southern 
States,  the  scales  become  more  or  less  cupreous,  and  the  specimens  are 
usually  larger. 

Occurs  everywhere  east  of  the  Rocky  Mountains. 

HADROMERUS  Sch. 

Had ro merits  Schonh.  Cure.  Disp.  Meth.  p.  136. 

Rostrum  as  long  and  nearly  as  wide  as  the  head,  sub-quadrangular, 
above  fiat,  finely  canaliculate,  emarginate  at  tip  and  with  a  narrow  trian- 
gular smooth  space,  deeply  triangularly  notched  at  the  sides.  Scrobes 
moderately  deep,  well  deiined,  arcuate,  passing  downwards  at  a  distance 
from  the  eyes.  Antennas  moderate,  scape  gradually  clavate,  attaining 
nearly  the  posterior  margin  of  the  eye  ;  funicle  7-jointed,  joints  1-2  elon- 
gate, 3-7  obconical  ;  club  elongate,  oval.  Eyes  large,  round,  moderately 
prominent.  Thorax  sub-globose,  truncate  at  apex  and  base.  Scutellum 
triangular.  Elytra  wider  at  base  than  the  thorax,  moderately  elongate, 
parallel,  obtusely  acuminate  posteriorly  ;  humeri  moderately  prominent. 
Metasternum  moderately  elongate.  Intercoxal  process  broad,  oval  at  tip  ; 
second  abdominal  segment  longer  than  the  two  following  together,  sepa- 
rated from  the  first  by  a  moderately  arcuate  suture.  Anterior  legs  longer, 
the  femora  stouter  than  the  others,  the  tibiae  of  the  same  pair  denticulate 
within,  and  obtusely  mucronate.  Articular  surface  of  hind  tibiae  open, 
glabrous.     Claws  free.     Body  densely  scaly. 

H.  opalinus,  n.  sp.  . 

Form  moderately  elongate,  densely  covered  with  bright-blue  scales  with 
greenish  and  golden  reflections,  and  with  short,  fine,  yellowish  set*  very 
sparsely  placed.  Head  and  rostrum  (and  mandibles)  densely  scaly, 
sparsely  punctured,  together  as  long  as  the  thorax.  Thorax  sub-globose, 
truncate  at  apex  and  base,  slightly  broader  than  long,  surface  densely 
scaly,  sparsely  punctate.  Elytra  oblong,  parallel,  base  feebly  emarginate, 
surface  densely  scaly,  finely  striate,  striae  finely  and  closely  punctured,  in- 
tervals flat,  and  with  a  single  series  of  setae  on  each.  Body  beneath  as 
above  ;  tibiae  rufous,  femora  darker,  anterior  femora  piceous.  Length  .32 
inch  ;  8  mm. 

This  species  is  the  most  brilliant  and  more  decidedly  tropical  in  its 
appearance  of  any  in  the  f;\mily  in  our  fauna. 

Occurs  in  Arizona.     C.  V.  Riley. 


86  OTIORHYNCHID^l^:.  [^Horn. 

PANDELETEJUS  Sch. 

Pandeleteius  Schonh.  Cure,  ii,  p.  129. 

Rostruin  not  as  long  as  the  head,  slightly  compressed,  quadrangular, 
slightly  gi'ooved  above,  tip  entire  and  without  smooth  space  or  feebly 
emarginate  with  small  smooth  space.  Vertex  feebly  convex.  Scrobes 
lateral,  moderately  deep,  well  defined,  slightly  arcuate  and  passing  im- 
mediately beneath  the  eyes.  Eyes  small,  sliglitly  oval.  AntennsE  mode- 
rate, slendei*,  scape  gradually  clavate,  attaining  nearly  the  posterior  margin 
of  the  eyes  ;  funicle  with  joints  1-3  elongate,  3-7  very  short,  moniliform  ; 
club  elongate  oval.  Thorax  cylindrical,  broader  than  long,  with  sides 
arcuate,  apex  obliquely,  base  squarely  truncate.  Scutellum  small,  trian- 
gular. Elytra  wider  at  base  than  the  thorax,  humeri  moderately  promi- 
nent, form  oblong.  Intercoxal  process  moderately  broad,  oval  at  tip. 
Second  abdominal  segment  longer  than  the  two  following  together,  sepa- 
rated from  the  first  by  a  feebly  arcuate  suture.  Anterior  legs  longer  than 
the  others,  their  femora  stouter,  and  their  tibiaj  denticulate  within.  Articu- 
lar surface  of  hind  tibite  terminal,  not  cavernous.  Body  winged,  surface 
densely  scaly. 

Lacordaire  places  this  genus  among  the  Naupactides,  having  entirely 
overlooked  the  fimbria}  at  the  side  of  the  thorax  behind  the  eyes.  No 
mention  is  made  of  the  sejiaration  of  the  anterior  coxa;.  As  has  been 
already  mentioned  Polydicris  is  closely  related  to  Pandeletejus ;  the 
anterior  coxte  are  in  it  also  separated,  and  the  sides  of  the  thorax  have  dis- 
tinct vibrissse  composed,  however,  of  scales.  I  think  these  two  genera 
should  make  but  one. 

Two  species  occur  in  our  fauna  : 

Tip  of  rostrum  entire,  without  smooth  space hilaris. 

Tip  of  rostrum  emarginate,  with  smooth  space einereus. 

These  two  differ  also  in  the  form  of  the  thorax.  In  the  latter,  the 
thorax  is  dilated  only  at  the  middle,  so  that  the  cylindrical  portions  in  front 
and  behind  the  dilatation  are  equal.  In  the  former,  the  dilatation  is  pyri- 
form,  and  the  anterior  narrower  part  much  shorter.than  the  posterior. 

P.  hilaris  Hbst.  iCurcuUo)  Kiifer,  vii,  p.  58,  pi.  100,  fig.  7-8  ;  (ffadro- 
merus)  Say,  Descr.  Cure.  p.  10  ;  pauperculus  Gyll.  Schonh.  Gen.  Cure,  ii, 
p.  130. 

Form  moderately  elongate,  densely  covered  with  cinereous  scales,  disc 
of  elytra  darker  and  with  an  oblique  median  fascia  eTitering  the  darker 
apace.  Rostrum  nearly  squarely  truncate  at  tip,  and  without  smooth  simce, 
surface  densely  scaly,  sparsely  punctured.  Thorax  longer  than  wide, 
cylindrical,  sides  dilated,  and  broader  behind  the  middle,  anteriorly  with 
a  cylindrical  constriction,  posteriorly  with  shorter  constriction  ;  disc 
moderately  convex,  denselj^  and  coarsely  punctured,  densely  covered  with 
cinereous  scales,  a  broad  median  line  and  the  sides  darker.  Elytra  trun- 
cate at. base,  oblong,  broadest  behind  the  middle;  ten-striate,  stria;  closely 
punctured,  intervals  slightly  convex,  surface  densely  scaly.    Body  beneath 


Horn.] 


CYPHINI.  87 


densely  scaly,  scales  with  pearly  lustre.     Legs  with  cinereous  scales,  in- 
distinctly annulate  with   darker ;  tibite   slightly   hairy   within.     Length 
.16-.20incli.  4-5  mm. 
This  species  occurs  rather  abundantly  from  New  York  to  Texas. 

P.  cinsreus,  n.  sp. 

This  species  resembles  the  preceding  in  form  and  color.  It  is,  however, 
generally  smaller,  paler  in  color  and  differs  especially  in  the  following 
manner  : 

Rostrum  distinctly  emarginate  at  tip  and  with  narrow  crescentic  smootli 
space.  Thorax  cylindrical,  dilated  at  middle,  on  both  sides  of  which  it  is 
equally  cylindrically  constricted.  Body  beneath  sparsely  covered  with 
paler  scales,  without  lustre.     Length  .14-.  18  inch  ;  3.5-4.5  mm. 

Occurs  rather  abundantly  in  Texas. 

The  sexual  difiereaces  are  not  well  marked.  The  anterior  coxai  appear 
to  be  more  widely  distant  in  the  male  than  in  the  female,  and  in  the  second 
species  the  same  coxas  are  more  distant  sex  by  sex  than  in  the  preceding. 

Tribe  II.    CYPHinri. 

Rostrum  robust,  deeply  emarginate  at  tip  and  sides.  Scrobes  variable. 
Antennae  moderate,  second  joint  of  funicle  longer  than  the  first,  rarely 
(Aphrastt6s)  equal  to  it.  Thorax  without  ocular  lobes  or  fimbria?.  Claws 
free  except  in  Aphrastua.  Articular  surface  of  hind  tibite  internal  and 
cavernous  except  in  Ajjlirastus,  usually  glabrous,  rarely  scaly.  Elytra  with 
the  outer  stria  confluent  with  the  next  inner  at  one-third  from  the  base. 
Metasternum  moderately  long. 

The  rostrum  is  always  acutely  emarginate  in  front  and  at  the  sides,  and  in 
all  our  genera  there  is  a  tine  median  groove.  The  supports  of  the  decidu- 
ous pieces  are  usually  very  prominent,  and  the  deciduous  pieces  are  (as  far 
as  seen)  elongate,  glabrous,  falciform  and  acute  at  tip. 

The  following  groups  may  be  recognized  : 
Claws  free  ;  articular  surfaces  of  hind  tibipe  cavernous. 

Elytra  wider  at  base  than  the  thorax,  humeri  prominent....  €yphl. 

Elytra  oval,  not  wider  at  base  than   the  thorax,  humeri 

rounded Artipi. 

Claws  connate  ;  articular  surfaces  of  hind  tibite  not  cavernous. 

Elytra  oval,  humeri  rounded,  body  apterous Aphrasti. 

Group  I.     Cypnl. 

Humeri  prominent,  elytra  wider  at  base,  wider  than  the  thorax.  Scutel- 
lum  distinct.     Body  winged. 

Our  genera  are  few  in  number  and  may  be  distinguished  as  follows  : 
Articular  surface  of  hind  tibiae  scaly.     Scape  pass- 
ing the  eyes COMPSUS. 

Articular  surface  of  hind   tibia;   glabrous.     Scape 
not  passing  the  eyes. 


88  OTIORHYi^CHID^. 


[Horn. 


Scape  moderate,  scrobes  long,  passing  beneath  the 

eyes.  Scutellum  small,  triangular CYPHUS. 

Scape  short,  stout,  scrobes  short,  suddenly  arcu- 
ate.    Scutellum  rather  large,  oval BRACHYSTYLUS. 

BracJiystylus  has  been  placed  by  Lacordaire  among  the  Otiorhyncliini, 
but  the  entire  structure  is  that  of  the  Gyphini,  notwithstanding  the  slight 
irregularity  in  the  form  of  the  scrobes. 

COMPSUS  Sch. 

Compsus  Schonh.  Cure.  Disp.  Meth.,  p.  109. 

Rostrum  as  long  as  the  head,  slightly  dilated  at  tip  which  is  deeply  emar- 
ginate  above  and  at  the  sides,  above  finely  sulcate  and  Avith  a  broad  trian- 
gular impression  at  apex.  Supports  of  deciduous  pieces  prominent.  Scrobes 
deep,  shallower  behind,  moderately  arcuate  and  temninating  above  the  in- 
ferior edge  of  the  eye.  Eyes  oval,  sub-acute  beneath.  Antennae  mode- 
ratelj^  long,  sub-apical,  scape  long,  passing  the  eyes  behind,  feebly  clavate  ; 
funicle  7-jointed,  joints  1-3  longer,  the  second  longer  than  the  first,  joints 
3-7  nearly  cylindrical,  feebly  decreasing  in  length  ;  club  elongate  oval. 
Thorax  broader  than  long,  narrower  in  front,  truncate  at  apex,  bisinuate 
at  base.  Scutellum  rounded.  Elytra  oblong,  wider  than  the  thorax, 
humeri  prominent.  Anterior  tibiae  moder.itely,  middle  tibia;  feebly  mucro- 
nate  ;  articular  surface  of  hind  tibi*  cavernous,  densely  scaly.  Intercoxal 
process  rounded  at  tip,  broad.  Second  abdominal  segment  longer  than  the 
third  and  fourth  together,  and  separated  from  the  first  by  a  strongly  arcu- 
ate suture.     Body  densely  scaly. 

C.  auricephalus  Say  {CurcuUo),  Journ.  Acad.,  1823,  p.  310;  Boh. 
Sch.  Gen.  Cure,  i,  p.  645  ;  auripes  Sch.  Gen.  Cure,  vi,  1,  p.  183. 

Form  elongate,  somewhat  navicular,  surface  densely  covered  with  scales 
varying  in  color  from  white  to  greenish-white.  Head  and  rostrum  longer 
than  the  thorax,  sparsely  punctured,  densely  covered  with  scales  varying 
in  color  from  white  to  pale  cupreous.  Antennae  scaly.  Thorax  wider  at 
base  than  long,  apex  truncate,  base  bisinuate,  sides  moderately  arcuate  and 
converging  in  front,  disc  moderately  convex  with  broad  median  groove 
wider  behind,  limited  on  each  side  by  an  obtuse  ridge,  surface  sparsely 
punctured,  densely  scaly.  Elyti'a  more  than  twice  as  wide  as  long,  slightly 
wider  behind  the  middle,  and  feebly  acuminate  at  tip,  disc  moderately  con- 
vex, feebly  striate,  strioe  with  large  distant  punctures,  alternate  intervals 
sub-costiform,  surface  densely  scaly  and  with  very  short  scale-like  liairs  on 
the  costiform  intervals.  Body  beneath  and  legs  densely  scaly  and  with 
short  setae.     Length  .36-. 48  inch  ;  9-13  mm. 

Tlie  color  of  the  scales  covering  the  body  varies  from  white  to  pale 
green.  In  the  latter  case  the  upper  side  of  the  head  and  the  outer  side  of 
the  legs  are  pale  cupreous. 

Occurs  rather  abundantly  from  Georgia  to  Mexico,  also  to  the  north  in 
Colorado. 


Horn.] 


CYPHINI.  89 


CYPHUS  Germ. 


CyphuH  Germ.  Ins.  Spec,  nov.,  p.  427. 

Rostrum  not  longer  than  the  head,  robust,  quadrangular,  slightly  nar- 
rower in  front,  tip  and  gensE  deeply  emarginate,  above  sulcate.  Scrobes 
lateral  deep,  well-defined,  arcuate  and  passing  directly  beneath  the  eyes. 
Eyes  round,  moderately  prominent,  finely  granulated.  Antennae  moderate ; 
scape  feebly  clavate,  attaining  the  middle  of  the  eye  ;  funicle  7-jointed, 
joint  3  longer  than  the  first,  3-7  sub-equal,  slightly  obconical ;  club  elon- 
gate oval.  Tliorax  broader  than  long,  narrower  in  front,  apex  truncate, 
base  bisinuate.  Scutellum  small  triangular.  Elytra  wider  at  base  than  the 
thorax,  humeri  moderately  prominent,  rather  more  than  twice  as  long  as 
wide,  and  at  apex  slightly  acuminate.  Metasternum  moderately  long.  In- 
tercoxal  process  broad,  sub-truncate.  Second  abdominal  segment  as  long 
as  the  two  following  united,  separated  from  the  first  by  a  feebly  arcuate 
suture.  Articular  surface  of  hind  tibiae  enclosed  (cavernous),  and  ascend- 
ing.    Anterior  and  middle  tibiae  feebly  mucronate.     Body  densely  scaly. 

The  middle  and  hind  tibiae  have  the  articular  surfaces  ascending  one- 
third  the  length  of  the  tibiae,  the  edge  being  sharp  and  fimbriate  with 
bristly  hairs.  The  surfaces  are  however  entirely  glabrous.  In  addition  to 
the  differences  in  the  number  of  the  dorsal  segments  of  the  sexes,  the 
females  may  be  known  by  an  additional  character.  On  each  side  of  the 
last  segment,  is  a  short,  rather  deeply-impressed  line,  parallel  with  the  late- 
ral margin  and  about  one-fourth  the  width  of  the  segment  from  the  side, 
beginning  at  the  last  ventral  suture  and  extending  nearly  half  the  length 
of  the  segment.  The  last  ventral  of  the  male  is  not  so  marked,  and  is 
rather  longer  than  in  the  female. 

Two  species  occur  in  our  fauna. 
Thorax  abruptly  narrowed  in  front,  sides  behind  the  front 
angles  strongly  arcuate.     Anteriorly  rather  abruptly 

truncate lautus. 

Thorax  gradually  narrowed  from  base,  sides  feebly  arcuate . 
Apex  very  obliquely  truncate,  with  the  upper  margin 

decidedly  prolonged  over  the  occiput placidus. 

The  differences  between  these  tAvo  species  are  more  appreciable  in  nature 
than  expressible  by  words.  The  punctures  of  the  stria;  are  much  finer  in 
placidus  than  in  lautus. 

C.  lautus  Lee.  {Tanymecus)  Proc.  Acad.,  1854,  p.  85. 

Form  oblong,  robust,  densely  scaly.  Head  and  rostrum  slightly  longer 
than  the  thorax.  Rostrum  trisulcate,  median  sulcus  moderately  deep  and 
extending  to  the  occiput,  lateral  sulci  short,  slightly  oblique,  surface  sparsely 
punctured,  moderately  densely  scaly.  Thorax  broader  than  long,  sub- 
quadrate,  sides  in  front  strongly  arcuate  and  rather  suddenly  narrowed, 
slightly  sinuate  befoi'e  the  hind  angles,  apex  truncate,  base  bisinuate,  hind 
angles  slightly  laminiform  ;  disc  moderately  convex,  a  fine  median  line 
ending  in  a  broad  shallow  fossa  near  the  base,  a  short  linear  basal  impres- 

PROC.  AMER.  PHILOS.  60C.  XV.  96.  L 


90  otiorhy:j^ciiid^. 


[Horn. 


sion  on  each  side  near  the  hind  angles  ;  surface  coarsely  punctured  with 
fine  punctures  intermixed,  moderately  densely  scaly.  Elytra  wider  at  base 
than  the  thorax,  and  three  times  as  long,  humeri  slightly  oblique,  sides 
parallel,  apex  slightly  prolonged  ;  disc  moderately  convex  finely  striate, 
striae  moderately  coarsely  punctured,  intervals  flat ;  surface  moderately 
densely  scaly,  scales  cinereous  with  a  transverse  fuscous  spot  on  each  elytron 
slightly  in  front  of  the  middle  and  another  smaller  near  the  declivity. 
Body  beneath  moderately  densely  scaly  ;  legs  densely  scaly,  sparsely  pilose, 
middle  and  hind  femora  with  a  fuscous  spot  near  the  tip.  Body  winged. 
Length  .30-52  inch  ;  9-13  mm. 

liar,  lautus.  Elytra  moderately  densely  scaly,  scales  cinereous,  with 
two  fuscous  spots  on  each  elytron,  the  anterior  slightly  in  front  of  the  mid- 
dle and  formed  of  short  lines  of  fuscous  scales  on  the  intervals  2  to  5  sur- 
rounded with  paler  cinereous  scales,  a  similar  spot  on  the  beginning  of 
the  declivity  composed  of  three  short  lines  on  intervals  2-3-4. 

var.  .     Elytra  uniformly  covered  with  nearly  white  scales 

moderately  densely  placed. 

This  species  occurs  in  Arizona,  and  has  been  distributed  under  the  un- 
published name  Brachytliysus  lautus. 

C.  placidus,  n.  sp. 

Oblong,  more  slender  than  lantux.  Head  somewhat  narrower,  median 
sulcus  broader  at  middle.  Thorax  scarcely  wider  than  long,  gradually 
narrower  from  base  to  apex,  sides  feebly  arcuate  ;  apex  obliquely  truncate 
slightly  prolonged  over  the  head,  base  bisinuate,  hind  angles  slightly 
laminiform  ;  disc  with  broad  shallow  median  fovea,  and  a  feeble  impression 
on  each  side  near  the  base,  surface  sparsely  punctured  with  finer  punctures 
intermixed,  very  densely  scaly  especially  in  the  median  fovea.  Elytra 
similar  in  form  to  lautus  but  rather  longer  in  proportion  to  their  width  ; 
disc  moderately  convex,  finely  striate,  and  with  rather  fine  punctures  rather 
distantly  placed  ;  surface  very  densely  scaly.  Body  beneath  very  densely 
scaly  and  sparsely  hairy.  Legs  densely  scaly,  tibise  pilose.  Length  .48- 
.52  inch;  12-13  mm. 

The  two  specimens  before  me,  both  females,  vary  in  color.  The  larger  is 
pale  greenish-white,  the  other  simply  white.  The  scales  are  so  densely 
placed  as  to  entirely  conceal  the  surface  color.  In  this  respect  they  differ 
notably  from  the  preceding  species.  The  more  striking  differences  have 
already  been  pointed  out. 

Two  specimens.     Arizona. 

BRACHYSTYLUS  Sch. 

Brachi/sti/lus  Schonh.  Gen.  Cure,  viii,  2,  p.  433. 

Rostrum  horizontal,  nearly  as  long  and  as  broad  as  the  head,  deeply 
emarginate  at  tip  (with  narrow  smooth  space)  and  at  the  sides,  above  flat 
and  with  a  fine  median  groove.  Scrobes  short,  narrow  in  front,  their  lower 
border  suddenly  flexed  and  directed  downwards.  Eyes  round,  moderately 
prominent.    Antennae  short,  scaly  ;  scape  short,  robust,  obconical,  passing 


Horn.] 


CYPHIXI.  91 


slightly  beyond  the  middle  of  the  eye  ;  funicle  7-jointed,  first  joint  short 
robust,  second  longer,  joints  3-7  cylindrical,  sub-equal  ;  club  oval.  Thorax 
conical,  truncate  at  apex,  feebly  bisinuate  at  base.  Scutellum  oval,  nar- 
rower at  base.  Elytra  wider  than  the  thorax,  slightly  wider  behind  the 
middle,  apex  sub-acuminate.  Metasternum  elongate.  Intercoxal  process 
moderate,  oval  at  tip.  Second  abdominal  segment  very  much  longer  than 
the  two  following  combined,  separated  from  the  first  by  a  strongly  arcuate 
suture.  Anterior  and  middle  tibiae  mucronate  ;  articular  surface  of  hind 
tibia3  enclosed  (cavernous).     Claws  very  small.     Body  densely  scaly. 

The  affinities  of  this  genus  are  so  i)lainly  with  Ci/phus  that  it  is  rather 
singular  they  should  have  been  overlooked  by  Lacordaire. 

B.  acutus  Say  {Chlorophanus),  Journ.  Acad.,  1824,  p.  310;  Cure.  N. 
A.,  p.  7  ;  Am.  Ent.  i,  p.  266  ;  Boh.  Sch.  Gen.  Cure,  viii,  2,  p.  434. 

Form  oblong.  Head  and  rostrum  not  as  long  as  the  thorax,  sparsely 
punctured,  very  densely  scaly.  Thorax  conical,  slightly  longer  than  wide 
at  base,  apex  truncate,  base  feebly  bisinuate,  sides  very  feebly  arcuate  at 
middle  ;  disc  slightly  flattened,  sparsely  punctured,  densely  scaly.  Elytra 
oblong,  sub-acuminate  at  tip,  base  broader  than  the  thorax,  humeri  promi- 
nent, sides  very  feebly  arcuate,  slightly  divergent ;  surface  feebly  striate, 
striae  with  coarse  punctures,  intervals  feebly  and  alternatelj^  more  convex, 
densely  scaly.  Body  beneath  and  legs  densely  scaly.  Length  .3(5  inch  ; 
9  mm. 

The  color  of  the  scales  covering  the  body  is  earthy  brown,  the  tip  of  the 
elytra  much  paler  and  with  a  broad  post-median  dark  brown  fascia  bor- 
dered anteriorly  with  paler.  The  tibi;e  of  both  sexes  are  fimbriate  within. 
The  last  abdominal  segment  is  acutely  triangular  in  the  female,  rounded  in 
the  male. 

Occurs  in  Pennsylvania,  Georgia,  and  Kentucky. 

Group   II.     Artipi. 

Elytra  oval  or  oblong,  not  wider  at  base  than  the  thorax,  humeri  oblique, 
or  broadly  rounded.  Scutellum  distinct.  Antennae  long,  scape  passing  the 
eyes  behind.  Articular  surfaces  of  hind  tibiae  cavernous.  Rostrum  rather 
deeply  notched  behind  the  base  of  the  mandibles. 

The  essential  difference  between  this  group  and  the  preceding  is  found 
in  the  form  of  the  elytra.  The  antennte  (especially  the  scape),  are  longer 
and  more  slender.  The  rostrum  varies  in  form  and  is  usually  short,  stout, 
flattened  above  and  deeply  notched  at  tip;  In  one  genus  however  the  ros- 
trum is  decidedly  Periteloid  with  less  divergent  alae.  All  the  genera  ex- 
cepting Artipus  have  the  anterior  tilnse  denticulate  within. 

Our  genera  are  as  follows  : 
Rostrum  short,  stout.     Scrobes  linear  in  front.  ^ 

Articular  surface  of  hind  tibiae  scaly  ;  anterior 

tibia;  not  denticulate  within ARTIPUS. 

Articvdar  surftices  of  hind  tibiae  glabrous  ;  ante- 
rior tibiae  more  or  less  denticulate  within. 


92  OTIORHYNCHID^.  [Horn. 

Articular  surfaces  of  hiiid  tibiae  very  feebly  or 
not  cavernous ;  tips  of  hind  tibisB  with,  at 

most,  a  double  row  of  fimbriae AR  AMI  GITS. 

Articular  surfaces  of  hind  tibiae,  strongly  cavern- 
ous ;  tips  of  hind  tibiae  with  oval  scalj^  space.     PHACEPHOLIS. 
Rostrum  moderately  elongate.      Scrobes  cavernous 
in  front. 
Articular  surfaces  of  hind  tibiae  sparsely  scaly. . .     ACHRASTENUS. 
Artipus  has  a  form   somewhat   resembling    Gi/phus,   without   however 
having  the  humeri  prominent.    The  next  two  genera,  especially  Aramigus 
resemble  an  elongate  Stropliosomus.     AcTirastenus  resembles  Peritelus. 

ARTIPUS  Sch. 

Artipus  Schonh.  Cure.  Disp.  Meth.,  p.  133. 

Rostrum  not  longer  than  the  head,  robust,  angles  rounded,  finely  canal- 
iculate above,  and  with  a  very  shallow  impression  near  the  apex  crossed  by  a 
feeble  transverse  ridge  between  the  insertion  of  the  antenn*,  tip  triangularly 
emarginate,  and  with  a  narrow  smooth  space  ;  gente  deeply  notched. 
Scrobes  narrow  in  front  and  moderately  deep,  gradually  broader  and  evan- 
escent behind,  the  lower  border  strongly  arcuate  and  directed  inferiorly. 
Eyes  oval,  slightly  longitudinal,  moderately  prominent.  Antennae  sub- 
terminal,  moderately  long  ;  scape  feebly  clavate  and  attaining  the  thorax  ; 
funicle  7-jointed,  1-3  longer,  sub-equal,  8-7  shorter  sub- equal ;  club  oblong 
oval.  Thorax  cylindrical,  slightly  narrowed  in  front.  Scutellum  mode- 
rate, oval.  Elytra  oval,  nearly  twice  as  long  as  wide,  not  wider  than  the 
thorax,  base  sub-truncate,  humeri  feebly  oblique.  Metasternum  moderately 
long.  Intercoxal  process  of  abdomen  broad,  rounded  at  tip  ;  second  seg- 
ment longer  than  the  two  following,  separated  from  the  first  by  a  strongly 
arcuate  suture.  Anterior  and  middle  tibiie  mucronate.  Articular  surfaces 
of  hind  tibiae  scaly.     Claws  free.     Body  winged,  surface  densely  scaly. 

Not  only  are  the  hind  tibiae  scaly  at  tip,  but  also  the  articular  surfaces  of 
the  other  tibiae  are  partially  encroached  upon  by  scales,  and  those  of  the 
hind  tibiae  are  very  feebly  cavernous. 

A.  fioi'idanus,  n.  sp. 

Form  oblong,  surface  densely  clothed  with  white  scales,  varying  to  pale 
greenish  blue  with  cupreous  lustre.  Head  and  rostrum  not  as  long  as  the 
thorax,  sparsely  punctured  and  densely  scaly.  Thorax  as  wide  as  long, 
cylindrical,  slightly  narrower  in  front,  sides  very  slightly  arcuate,  apex 
and  base  truncate,  disc  moderately  convex,  median  line  moderately  im- 
pressed, interrupted,  surface  unevenly  punctured,  densely  scaly.  Elytra 
nearly  twice  as  wide  as  long,  broadest  behind  the  middle,  sides  feebly  ar- 
cuate, base  sub-truncate,  disc  moderately  convex,  feebly  striate,  striae  with 
moderate  but  very  unequal  punctures  not  very  closely  placed,  intervals 
nearly  flat,  each  with  two  rows  of  short  scale-like  hairs,  surfiicc  densely 
scaly,  the  larger  punctures  surrounded  by  a  darker  area.  Body  beneath 
and  legs  densely  scaly  and  sparsely  hairy.    Length  .24  inch  ;'  6  mm. 


Horn.]  CYPHINI.  93 

On  examining  the  anterior  til)iaj  witli  rather  liigli  power,  minute  den- 
ticulations  may  be  detected.  This  species  resembles  one  from  Cuba  (sent 
by  Professor  Poey,  without  name)  wliich  has  the  elytral  intervals  more 
convex,  the  punctures  of  the  strite,  larger,  more  regular  and  closer  and  the 
thorax  more  densely  punctured. 

Several  specimens  from  Key  West,  Florida. 

ARAMIGUS  n.  g. 

Rostrum  slightly  narrower  than  the  head,  very  little  longer  and  some- 
what narrowed  in  fi'ont,  tip  triangularly  emarginate,  genas  deeply  notched, 
base  of  mandibles  exposed,  above  finely  grooved.  Scrobes  lateral,  narrow 
in  front,  sides  slightly  divergent  behind,  arcuate  and  directed  beneath  ihe 
eyes.  Eyes  oval,  longitudinal  and  prominent.  Antennoe  sub-median, 
long,  slender  ;  scape  long,  slender,  rather  suddenly  clavate,  attaining  the 
thorax  ;  funicle  7-jointed,  longer  than  the  scape,  joints  1-3  longer,  the  sec- 
ond much  longer  than  the  first,  joints  3-7  moderately  long,  sub -equal ; 
club  elongate  oval.  Thorax  cylindrical,  sides  feebly  arcuate.  Scutellum 
cither  small  or  indistinct.  Elytra  oval,  not  wider  than  the  thorax  and 
truncate  at  base.  Metasternum  moderate.  Intercoxal  process  of  abdomen 
broad,  truncate  ;  second  segment  of  abdomen  longer  than  the  two  follow- 
ing united,  separated  fx'om  the  first  by  an  arcuate  suture.  Anterior  femora 
stouter  than  the  others,  their  tibite  denticulate  within  and  mucronate  at  tip. 
Hind  tibiae  with  the  posterior  edge  at  tip  acute,  margined  with  densely 
placed  spinulose  hairs.  Articular  cavities  not  or  extremely  feebly  cavern- 
ous and  ascending  the  tibise.     Claws  moderate,  free.     Body  densely  scaly. 

This  genus  would  probably  belong  to  Lacordaire's  Brachyderides  and  its 
position  near  Eurymetopus.  The  resemblance  of  the  species  to  Stroplioso- 
mus  has  already  been  noticed,  and  it  may  be  remarked  that  Eurymctopiis 
has  also  been  so  compared.  I  find,  however,  differences  of  sufficient  im- 
portance in  the  descriptions  to  convince  me  that  our  species  cannot  be  re- 
ferred to  any  known  genus. 

Two  species  are  known  in  our  fauna  : 
Denticulation  of  anterior  tibiae  indistinct ;    surface  densely 

scaly tesselatus. 

Denticulation  very  distinct ;  surface  not  densely  covered .. .  FuUeri, 

The  hunieri  of  the  first  species  are  rectangular  and  slightly  prominent 
anteriorly  and  in  the  latter  obliterated.  The  articular  surfaces  of  the  mid- 
dle tibiae  ascend  nearly  as  much  as  in  the  hind  tibiae  in  tesselatus,  and  are 
not  at  all  ascendent  in  Fidleri. 

A.  tesselatus  Say,  (Liparus)  Jouru.  Acad.  1824,  p.  318  ;  Stroplioso- 
mus?  id.  Mels.  Cat.  p.  97  ;  Ophryastes  id.  Catalogus.  Gemm.  and  Harold, 
p.  2317. 

Form  oblong,  oval,  surface  densely  scaly,  of  variable  color.  Head  and 
rostrum  as  long  as  the  thorax,  densely  scaly,  except  at  apex,  sparsely 
punctured.  Thorax  cylindrical,  slightly  narrowed  in  front,  slightly 
broader  than  long,  sides  feebly  arcuate,  apex  and  base  truncate,  disc  mode 


94:  OTIORIIYXCHID.E.  [Horn. 

rately  convex,  finely  punctured,  densely  scaly.  Elytra  regularly  oval, 
slightly  acuminate  posteriorly,  sides  regularly  arcuate,  base  sub-truncate, 
humeri  slightly  prominent  anteriorly  ;  disc  convex,  feebly  striate,  striai 
not  closely  punctured,  intervals  flat.  The  seventh  slightly  elevated  at 
humerus,  surface  very  densely  scaly  and  with  numerous  very  short,  semi- 
erect,  scale  like  hairs.  Body  beneath  denseh^  seal}'-,  sparsely  setose,  legs 
densely  scaly,  tibiae  sparsely  pilose.     Length  .20-.  30  inch  ;  5-7.5  mm. 

This  species  presents  two  varieties. 

var.  tesselatus  Say.  Head  and  rostrum  with  earthy -brown  scales,  paler 
around  the  eye  and  beneath.  Thorax  similar  in  color,  with  a  naiTow  pale 
line  at  the  sides  and  a  broader  pale  line  on  each  side  of  a  broad  median 
brownish  space.  Elytra  earthy-brown,  on  each  side  of  suture  obscurely 
variegated  with  paler  mottlings  and  a  small  pale  humeral  line,  and  a  narrow 
space  at  the  side  of  the  tip. 

These  specimens  are  found  in  Southern  Illinois. 

var.  pallidum.  This  variety  is  of  somewhat  larger  size  than  the  prece- 
ding, the  scales  covering  the  surface  are  pale-greenish  white,  and  with 
barely  perceptible  darker  spaces  arranged  in  a  manner  similar  to  the  pre- 
ceding variety. 

This  variety  occurs  from  Kansas  to  Texas. 

Both  varieties  have  the  lateral  striae  of  the  elytra  more  distinctly  im- 
pressed than  those  of  the  disc. 

A  specimen  of  the  latter  variety  was  submitted  to  Mr.  Pascoe,  who  was 
of  the  opinion  that  it  might  be  identical  with  "  Sitona  durius  Germ."  * 

A.  PuUeri,  n.  sp. 

Form  oblong  oval,  surface  not  densely  clothed  with  dark-brown  scales. 
Head  and  rostrum  longer  than  the  thorax,  densely  punctured,  sparsely 
scaly.  Rostrum  with  feeble  ridge  on  eaoh  side  from  the  tip  nearly  to  the 
eyes.  Thorax  cylindrical,  apex  and  base  equal  and  truncate,  very  slightly 
wider  than  long,  sides  feebly  arcuate,  a  fine  median  line,  disc  moderately 
convex,  densely  punctured,  sparsely  scaly.  Elytra  regularly  oval,  humeri 
entirely  obliterated,  base  sub-truncate,  surface  indistinctly  striate,  and  with 
rows  of  large,  moderately  closely  placed  punctures,  intervals  flat,  not 
densely  scaly,  and  with  very  minute  sub-erect  hairs ;  scales  dark- 
brown,  a  whitish  or  paler  stripe  beginning  at  the  humerus,  passing  along 
the  lateral  margin,  ending  in  a  short  oblique  fascia  at  the  middle  of  the 
elytra.     Body  beneath  sparsely  scaly.     Legs  Avith  scale-like  hairs.     Ante- 

*  Since  the  above  was  written  the  following  note  has  been  received  from  Mr. 
H.  Jekel. 

•'  Liparus  tesselatus  Say.  It  is  a  Naupactus  sensu  Sch.,  so  very  allied  to  the 
female  of  jV.  durius.  Germ.,  from  Brazil,  that,  should  not  the  size  be  a  third  larger, 
and  the  habitat  so  distant  I  would  have  regarded  them  as  identical  *  *  *  . 
For  that  group  oi Naupacti  I  have  created  the  genus  Aomopactus." 

I  am  not  aware  that  this  genus  suggested  by  Mr.  Jekel  has  been  described. 
The  reniarks  apply  especially  to  the  \nY\eiy  palUdus,  Fulleri  being  more  nearly 
allied  to  ovuluni  Jek.,  from  the  Pampas,  Mendoza. 


Horn.] 


CYPHINI.  95 


rior  tibiae  ratlier  strongly  denticulate  within,  articular  surfaces  of  middle 
tibiae  not  ascendent.     Length  .26  inch  ;  0.5  nnn. 

The  form  of  this  species  is  not  unlike  the  preceding.  The  elytra  are, 
however,  narrower  between  the  humeri  and  the  thorax,  not  broader  at 
base. 

This  species  is  dedicated  to  my  friend  And.  S.  Fuller,  to  whom  I  am 
indebted  for  this  and  many  other  species. 

Occurs  from  New  Jersey  to  Montana. 

PHACEPHOLIS  n.    g. 

Rostrum  longer  than  the  head,  slightly  cuneiform,  sub-quadrangular, 
flattened  above,  and  with  a  fine  median  groove,  tip  triangularly  emarginate. 
Scrobes  narrow,  moderately  deep,  well  defined,  slightly  broader  behind 
and  passing  immediately  beneath  the  eyes.  Eyes  round,  moderately 
prominent.  Antennae  sub-median,  long,  slender ;  scape  nearly  attaining 
the  margin  of  the  thorax,  slender,  rather  suddenly  clavate  at  tip  ;  funicle 
7-jointed,  longer  than  the  scape,  joints  1-2  long,  the  second  much  longer  than 
the  first,  3-7  sub-equal,  7  obconical  ;  club  elongate  oval.  Thorax  narrower 
in  front,  sides  moderately  arcuate,  base  truncate.  Scutellum  triangular. 
Elytra  oval,  feebly  emarginate  at  base,  humeri  rounded.  Intercoxal  process 
of  abdomen  broad,  truncate  at  tip  ;  second  segment  longer  than  the  two  fol- 
lowing, separated  from  the  first  by  a  strongly  arcuate  suture.  Anterior 
tibiae  mucronate  at  tip,  rather  strongly  denticulate  within.  Hind  tibiae 
truncate  at  tip  with  oval,  densely  scaly  space,  articular  surfaces  cavernous, 
not  ascending.     Body  densely  scaly  and  pilose.     Claws  free. 

This  genus  resembles  the  preceding  in  form  and  differs  in  the  structure 
of  the  hind  tibia3  and  the  more  distinct  scutellum.  The  mandibles  are 
moderately  prominent,  exposed  at  base  by  the  emargination  of  the  genoe, 
their  surface  scaly.  The  supports  of  the  deciduous  pieces  are  prominent, 
and  obliquely  truncate.  The  deciduous  pieces  are  long,  slightly  curved 
and  glabrous.  I  cannot  satisfy  myself  that  this  genus  should  enter  any  of 
the  genera  proposed  by  Lacordaire. 

Three  species  occur  in  this  genus  which  differ  in  the  form  of  the  thorax 
as  follows  : 

Thorax  squarely  triincate  ;  eyes  not  prominent elegans. 

Thorax  obliquely  truncate  ;  eyes  prominent ;  head  slightly 

constricted  belimd  the  eyes ^ obscura. 

Thorax  obliquely  truncate  and  slightly  prolonged  over  the 

head  ;  eyes  feebly  prominent Candida. 

The  first  species  has  the  thorax  squarely  truncate,  so  that  it  is  no  longer 
on  the  dorsal  than  on  the  sternal  side.  The  eyes  are  not  prominent,  and 
the  scales,  although  variable,  of  a  metallic  or  pearly  lustre.  In  the  second 
species  the  head  is  broadly  constricted  behind  the  eyes,  the  latter  promi- 
nent, and  the  thorax  is  obliquely  truncate,  but  not  sub-lobed  in  front,  the 
scales  of  the  surface  are  luteous  without  lustre,  with  darker  spaces  on  the 


96  OTTORHYNCHID^. 


[Horn. 


thorax  and  elytra.  The  third  species  is  larger  than  the  other  two,  the 
scales  pale  cinereous  or  nearly  white.  The  thorax  is  obliquely  truncate 
and  somewhat  lobed  in  front  and  slightly  prolonged  over  the  occiput. 

P.  elegans,  n.  sp.* 

Oblong  oval,  moderately  robust,  surface  densely  covered  with  brilliant 
metallic  blue  scales,  varying  to  pearly  and  cupreous.  Head  and  rostrum 
as  long  as  the  thorax,  sparsely  punctured,  densely  scaly,  with  sparselj'^ 
placed,  short,  erect  hairs,  median  line  finely  impressed.  Thorax  broader 
than  long,  slightly  narrower  in  front,  sides  feebly  arcuate,  apex  and  base 
truncate,  hind  angles  slightly  laminiform  ;  disc  moderately  convex,  mode- 
rately coarsely  punctured,  densely  covered  with  round  scales  and  with 
sparsely  placed,  very  short,  erect  hairs.  Elytra  oval,  slightly  acuminate 
posteriorly,  sides  feebly  arcuate,  surface  striate,  stria  with  moderate  but 
not  closely  placed  punctures,  intervals  flat,  densely  scaly,  and  with  two  or 
three  rows  of  short,  erect,  white  hairs.  Body  beneath  rather  sparsely 
scaly  and  setose.  Legs  sparsely  scaly,  tibiae  sparsely  hairy.  Length  .20- 
.28  inch  ;  5-7  mm. 

The  thorax  at  base  is  very  feebly  bisinuate,  but  to  such  a  small  degree 
that  I  have  preferred  to  say  truncate.  The  vestiturc  varies  in  color  greatly 
and  is  always  paler  beneath  than  above.  Resembles  considerably  the  figure 
given  by  Duval  of  Eusomus  ovulum. 

Occurs  from  Kansas  to  Texas.  The  specimens  from  the  latter  region  are 
more  brilliant. 

P.  obscura,  n.  sp. 

Form  oval,  robust,  surface  densely  covered  with  scales  and  short  erect 
hairs.  Head  and  rostrum  neai'ly  as  long  as  the  thorax,  head  feebly  con- 
stricted behind  the  eyes,  sparsely  punctured,  densely  covered  with  brown- 
ish scales,  above  each  eye  a  paler  space,  head  and  rostrum  beneath  nearly 
white.  Thoi'ax  oval,  slightly  longer  than  wide  at  base,  apex  narrower  and 
obliquely  truncate,  sides  moderately  arcuate  and  gradually  converging  from 
base  to  apex  ;  disc  moderately  convex,  punctured,  median  line  feeble, 
densely  covered  with  brownish  scales,  a  broad  paler  line  on  each  side  of 
middle,  and  a  narrower  line  at  the  sides.  Elytra  regularly  oval,  scarcely 
attenuate  at  apex,  disc  convex,  striate,  striae  with  moderate,  not  closely 
placed  punctures,  intervals  feebly  convex  at  the  sides,  surface  densely 
covered  with  luteous  and  brownish  scales  in  irregular  longitudinal  stripes, 
each  interval  with  one  or  two  rows  of  moderately  long  erect  white  hairs. 
Body  beneath  and  legs  moderately  densely  scaly  and  paler  than  the  upper 
surface.     Length  .22-. 28  inch  ;  5.5-7  mm. 

This  species  has  much  more  the  aspect  of  StropJiosormM  than  any  other 
in  our  fauna.  The  eyes  are  much  more  prominent  than  the  other  two 
species,  and  in  this  resembles  the  above  genus. 

Two  specimens,  Texas. 

*  "  JVaupactus  of  the  group  stu2)iclus,  nobilis  and  crinitas,  belonging;  to  my 
genus  Pantopactus.'^    Jekel. 


HornJ 


CYPHIN^I.  97 


p.  Candida,  n.  sp. 

Form  oblong,  surface  densely  covered  with  nearly  white  scales.  Head 
and  rostrum  as  long  as  the  thorax,  median  groove  fine,  attaining  the 
occiput,  surface  sparsely  punctured,  densely  scaly  and  with  sparsely  placed, 
very  short,  white  hairs.  Eyes  feebly  prominent.  Thorax  as  long  as  wide 
at  base,  slightly  narrowed  in  front,  sides  moderately  arcuate,  base  feebly 
bisinuate,  apex  obliquely  truncate  and  slightly  lobed  in  front  and  feebly 
sinuate  behind  the  eyes  ;  disc  convex,  median  line  feebly  impressed,  a 
slight  impression  within  each  hind  angle,  surface  granular,  densely  scaly 
and  with  very  sparse  hairs.  Elytra  regularly  oval,  base  feebly  emarginate 
at  middle,  humeri  very  obtuse,  sides  moderately  arcuate,  disc  convex, 
striate,  striae  with  elongate,  moderately  closely  placed  punctures,  intervals 
moderately  convex,  densely  scaly  and  with  very  short  white  hairs.  Body 
beneath  and  legs  densely  scaly,  tibiae  sparsely  fimbriate.  Anterior  and 
middle  tibiae  denticulate  within  and  mucronate  at  tip,  more  strongly  in  the 
anterior.     Length  .33  inch  ;  8  mm. 

This  species  is  the  largest  of  the  three  at  present  known,  and  differs 
abundantly  from  either  of  those  just  described,  as  shown  in  the  synoptic 
table  and  the  remarks  following. 

Two  specimens,  Colorado  and  Kansas.. 

ACHRASTENUS  n.  g. 

Rostrum  nearly  horizontal,  longer  and  narrower  than  the  head,  parallel, 
sliglitly  flattened,  very  feebly  emarginate  in  front,  distinctly  notched 
behind  the  mandibles,  above  with  a  fine  median  groove.  Head  very  slightly 
constricted  behind  the  eyes.  Scrobes  widely  open  from  above  ;  cavernous 
in  front,  very  shallow  posteriorly,  slightly  arcuate  and  directed  towards  the 
eyes.  Eyes  oval,  slightlj'^  truncate  in  front  and  pointed  beneath.  An- 
tennae moderately  long,  slightly  scaly;  scape  feebly  clavate,  nearly  attain- 
ing the  thorax ;  funicle  not  longer  than  the  scape,  7-jointed  ;  joints  1-2 
longer,  the  second  slightly  longer  than  the  first,  joints  3-7  slightly  obconi- 
cal,  sub-equal ;  club  oval.  Thorax  cylindrical,  narrower  in  front,  apex 
obliquely  truncate,  base  very  slightly  arcuate.  Scutellum  moderate,  oval. 
Elytra  oval,  base  moderately  emarginate,  humeri  oblique,  feebly  promi- 
nent. Intercoxal  process  moderate,  oval  at  tip.  Second  segment  of  al)do- 
men  longer  than  the  two  following  united,  separated  from  the  first  by  a 
strongly  arcuate  suture.  Anterior  and  middle  tibiae  feebly  mucronate  ;  ar- 
ticular surfaces  of  hind  tibiae  feebly  cavernous,  sparsely  scaly.  Claws  free. 
Body  densely  scaly. 

According  to  the  system  adopted  by  Lacordaire,  this  genus  belongs  to 
the  EuHtylides  of  the  Otiorkynchides.  The  construction  of  the  sternal  side 
pieces  excludes  it  at  once  from  the  latter  tribe.  The  scrobes,  and  in  fact  the 
structui'e  of  the  rostrum  generally,  are  very  nearly  that  of  Peritelus,  and 
its  ai^pearauce,  shape  and  coloration  do  not  differ  remarkably  from  P. 
gi'iseus  of  Europe.  I  prefer,  however,  to  place  the  genus  here  as  a  de- 
graded member  of  the  tribe  with  affinities  with  the  OtiorliyncJiini.     In- 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  M 


98  OTIOEHYXCHID^^. 


[Horn. 


stances  are  numerous  in  every  tribe  of  genera  wliicli  have  characters  of 
other  tribes,  of  more  or  less  distant  position,  in  addition  to  tlie  distinctive 
cliaracters  of  the  tribe  to  which  they  belong.  In  addition  to  the  above 
generic  characters  the  outer  elytral  striae  have  the  characteristic  form  of 
the  other  members  of  the  tribe,  the  outer  stria  joins  the  next  inner  one  third 
from  the  base.     This  is  not  known  in  our  Otiorhynchini. 

A.  griseus,  n.  sp. 

Form  oblong  oval,  gradually  narrower  anteriorly,  surface  densely  cov- 
ered with  greyish  scales,  irregularly  variegated  on  the  elytra  with  darker 
spots.  Head  and  rostrum  as  long  as  the  thorax  ;  a  fine  medium  line  extending 
to  the  vertex,  surface  moderately  densely  scal3^  Thorax  cylindrical,  some- 
what narrower  in  front,  slightly  longer  than  wide  ;  apex  truncate,  base 
feebly  arcuate,  sides  moderately  arcuate,  disc  convex,  moderately  densely, 
but  not  coarsely,  punctured.  Elytra  oval,  one  and  a  half  times  longer  than 
wide,  conjointly  emarginate,  humeri  oblique,  feebly  prominent,  sides 
moderately  arcuate  and  gradually  divergent,  apex  feebly  prolonged  ;  disc 
moderately  convex,  feebly  striate,  striae  with  moderate,  not  closely  placed 
punctures,  intervals  feebly  convex,  surface  densely  scaly,  each  interval 
with  a  single  row  of  minute  setse.  Body  beneath  and  legs  densely  scaly, 
and  spai'sely  setose.  Anterior  tibiae  with  distant  denticulations  within  ;  at 
tip  (also  the  middle  tibiae)  finely  mucronate.  Length  .20-.24  inch  ;  5-C  mm. 

In  many  of  the  specimens  the  intervals  slightly  alternate  in  the  degree  of 
their  convexity. 

Occurs  in  Texas. 

Group  III.     Aphrasti. 

Head  broader  behind  the  eyes  ;  scrobes  slightly  visible  from  above,  deep, 
directed  toward  the  eyes  but  not  reaching  them,  gradually  broader  behind. 
Antennae  moderate.  Elytra  slightly  wider  at  base  than  tlie  thorax,  humeri 
obtuse.  Scutellum  distinct.  Articular  surface  of  hind  tibiae  not  cavernous, 
slightly  scaly.     Claws  connate. 

The  structure  of  the  tarsal  claws  will  serve  to  distinguish  this  group 
from  either  of  the  preceding.  The  outer  stria  of  the  elytra  joins  the  next 
inner  at  one-third  from  the  base  as  in  all  the  Cyphini  and  the  genae  are 
deeply  emarginate. 

One  genus  constitutes  this  group  in  our  feuna. 

APHEASTUS  Sch. 

Aphrastus  Schonh.  Curcul.  vii,  1,  p.  3!). 

Head  broader  behind  the  eyes,  vertex  convex.  Rostrum  slightly  longer 
and  narrower  than  the  head,  moderately  robust,  subangulatc,  above  flat 
with  a  fine  groove  attaining  the  vertex,  tip  and  genae  deeply  emarginate. 
Eyes  round,  moderately  convex.  Scrobes  short,  deep,  passing  directly 
backward  but  not  reaching  the  eyes,  moderately  dilated  behind  and  slightlj^ 
visible  from  above.  Antennae  moderate  ;  scape  slightly  arcuate,  attaining 
the  thoracic  margin  ;  funicle  7-jointed,  1-3  longer,  3-7  short,  gradually  de- 
creasing and  becoming  wider  ;  club  oval.  Thorax  cylindrical,  slightly  nar- 
rower in  front,  apex  and  base  truncate.     Scutellum  moderate.    Elytra  ob- 


Horn.]  CYPHIXI.  99 

long  oval,  slightly  attenuate  at  apex  ;  base  slightly  broader  than  the  thorax, 
humeri  obtuse.  Intercoxal  process  moderately  broad,  rounded  at  tip. 
Second  segment  longer  than  tiie  two  following  united,  and  separated  from 
the  first  by  a  strongly  arcuate  suture.  Articular  surfaces  of  hind  tibiae 
open,  slightly  scaly.  Claws  connate.  Anterior  and  middle  tibite  feebly 
mucronate,  not  denticulate  within.    Surface  scaly  and  hispid. 

The  second  joint  of  the  funicle  varies  in  the  two  species.  It  is  slightly 
longer  thau  the  first  in  Unniatus  and  shorter  in  unicolor.  Lacordaire  is  in 
error  in  stating  that  the  second  joint  is  twice  the  length  of  the  first  in  keniatus. 

Our  species  are  two  in  number. 
Second  joint  of  funicle  longer  than  the  first ;  elytra  with  four 

brown  stripes taaniatus. 

Second  joint  of  funicle  shorter  than  the  first  ;  elytra  uni- 
formly cinereous unicolor. 

A.  tseniatus  CTyll.  Schonh.  Gen.  Cure,  ii,  p.  460  ;  Saj^  Cure.  N.  A.  p. 
9,  without  description. 

Head  and  rostrum  shorter  than  the  thorax,  densely  scaly  except  at  tip  ; 
scales  pale  brown  above,  cinereous  at  the  sides  and  beneath,  and  Avith 
sparsely  placed  short  erect  hairs.  Thorax  cylindrical,  slightly  narrowed  in 
front,  sides  feebly  arcuate,  base  squarely,  apex  obliquely  truncate,  disc 
moderately  convex,  not  densely  punctured,  densely  scaly  ;  scales  pale 
brown  ;  a  pale  line  on  each  side  of  middle,  sides  and  beneath  cinereous. 
Elytra  oval,  feebly  striate,  strife  with  moderately  coarse  verj'  regularly 
placed  punctures,  intervals  feebly  convex,  surface  densely  clothed  with  cin- 
ereous scales  ;  the  second  and  fourth  intervals  with  brownish  scales,  the 
inner  stripe  longer,  each  interval  with  a  row  of  very  short  whitish  hairs.. 
Body  beneath  and  legs  densely  covered  with  cinereous  scales  ;  tibise  sparsely 
hirsute.     Length  .20-.22  inch  ;  5-  5.5  mm. 

This  insect  is  very  well-known  to  most  collectors.  The  species  has 
usually  been  attributed  to  Saj^  but  as  the  description  of  Gyllenhal  is  really 
the  first,  it  appears  just  to  so  accredit  it. 

Occurs  in  the  Middle  and  Southern  States. 

A.  unicolor,  n.  sp. 

Form  elongate  oval,  densely  covered  with  cinereous  scales.  Head  and 
rostrum  as  long  as  the  thorax,  moderately  densely  scaly.  Thorax  regularly 
cylindrical,  sides  scarcely  arcuate,  apex  obliquely,  base  squarely  truncate, 
disc  sparsely  punctured,  surface  densely  ^scaly  and  with  whitish  erect  hairs. 
Elj'tra  oblong  oval,  feeblj'  striate,  stride  with  large  rather  coarse  punctures 
very  regularly  placed,  intervals  feebly  convex,  densely  scaly,  each  with  a 
single  row  of  short,  white,  erect  hairs.  Body  beneath,  especially  the  abdo- 
men sparsely  scaly.  Legs  moderately  scaly,  tibite  sparsely  pilose.  Length 
.18  inch  ;  4.5  mm. 

This  species  is  rather  narrower  than  tmniatus  ;  thorax  more  regularly 
cylindrical,  and  with  the  erect  hairs  more  distinctly"  visible.  It  difiers  es- 
pecially in  the  structure  of  the  funicle  ;  the  second  joint  being  but  little 
more  than  half  the  length  of  the  first. 

One  specimen.     Texas. 


100 


OTIORHYN^CHID^.  [Horn. 


Tribe  III.     EXOPllTHALMIJil.* 

Rostrum  longer  than  the  head,  usually  quadrangular  and  dilated  at  tip, 
the  latter  emarginate.  Gense  not  or  feebly  emarginate.  Head  not  prolonged 
behind  the  eyes.  Scutellum  distinct.  Elytra  wider  at  base  than  thorax 
(Omileus  excepted),  outer  stria  entire,  not  confluent  with  the  next.  Arti- 
cular surftices  of  hind  tibiae  internal,  at  least  moderately  cavernous.  Claws 
free. 

Tliis  tribe  is  constructed  at  the  expense  of  the  Cyphides  as  defined  by 
Lacordaire.  It  contains  those  genera  in  which  the  rostrum  is  elongate, 
the  tentii  stria  entire,  and  the  genn?  not  or  very  feebly  emarginate.  As  thus 
defined,  it  will  probably  contain  all  of  the  last  six  genera  of  the  Cyphides. 
In  examining  a  series  of  Cuban  species  presented  by  Prof.  Poey  to  the 
American  Entomological  Society,  I  find  the  specimens  of  Exophthalmus 
Sommeri  having  the  fimbriae  at  the  sides  of  the  thorax  as  strongly  marked 
as  in  any  of  the  genera  allied  to  Tanymecus.  The  elytra  are  not,  each  one, 
prominent  at  base,  and  the  thorax  is  feebly  bisinuate.  It  should  constitute 
a  new  genus  of  Ta?i^?rtec«/w'.  In  this  tribe  will  be  included  (Geonemus) 
alternans,  in  which,  however,  the  elytra  are  not  wider  at  base  than  the 
thorax.  The  structure  of  the  thoracic  parapleural  separates  it  from  the 
genera  allied  to  Epiccerus,  etc. 

The  following  groups  may  be  recognized. 
Submentum  not  pedunculate  ;  mentum  broad. 

Humeri  prominent ;  thorax  bisinuate  at  base Exophtlialml. 

Humeri  very  oblique  or  rounded.     Thorax  truncate 

at  base Omllel. 

Submentum  pedunculated  ;  mentum  narrow. 

Humeri  prominent.     Thorax  truncate  at  base Evoti. 

The  last  group  shows  strong  affinities  with  the  next  tribe. 

Group  I.      Exophtlialmi. 

Rostrum  longer  than  the  head,  sub-quadrangular,  slightly  dilated  at  tip, 
which  is  feebly  emarginate  ;  gense  moderately  emarginate.  Sub-mentum 
not  pedunculate,  mentum  broader  than  long,  entirely  concealing  the 
maxilke.  Antennae  moderate,  scape  at  most  merely  passing  the  eye. 
Scrobes  narrow,  moderately  arcuate,  passing  beneath  the  eyes.  Thorax 
distinctly,  at  times  feebly,  bisinuate  at  base.  Elj'tra  wider  than  the  thorax 
at  base,  or  at  least  with  the  humeri  very  distinct,  neither  oblique  nor 
obliterated.  Scutellum  distinct.  Articular  surfaces  of  hind  tibiae  very 
feebly  cavernous,  glabrous.     Claws  free. 

One  genus  represents  this  group  in  our  fauna. 

LACHNOPUS  Sch. 
Lachnopus  Schonh.  Cure,  vi,  1,  p.  380. 

Rostrum  longer  and  narrower  than  the  head,  slightly  broader  at  tip  and 
feebly  emarginate.     Vertex  convex,  separated  from  the  front  by  a  feeble 

*  This  tribe  should  be  known  as  Evotini  and  M'ould  have  been  corrected  had 
not  page  81  been  already  printed. 


Horn.] 


EXOPHTHALMII^I.  101 


transverse  impression.  Eyes  large,  round,  moderately  prominent.  Scrobes 
narrow,  deep,  nearly  straight,  passing  immediately  beneath  the  eyes. 
AntenntB  moderately  long,  scape  gradually  clavate,  passing  the  posterior 
margin  of  the  eyes  ;  funicle  7-jointed,  1-2  longer,  sub-equal,  3-"  shorter, 
sub-equal;  club  oval.  Thorax  oval,  narrower  in  front,  truncate  at  apex, 
feebly  bisinuate  at  base.  Scutellum  distinct,  moderate.  Elytra  oblong  oval, 
wider  than  the  thorax,  emarginate  at  base,  humeri  moderately  prominent, 
obtuse.  Intercoxal  process  of  abdomen  broad,  sub-truncate  ;  second  seg- 
ment of  abdomen  longer  than  the  two  following  together,  separated  from 
the  first  by  an  arcuate  suture.  Anterior  and  middle  tibia  mucronate  at  tip, 
and  denticulate  within,  hind  tibite  fimbriate  within.  Surface  partially 
scaly. 

L.  floridanus,  n.  sp. 

Form  oblong,  oval,  color  black,  shining,  surface  with  white  scales,  very 
sparsely  placed,  condensed  in  small  round  patches  on  the  elytra.  Head 
and  rostrum  slightly  longer  than  the  thorax,  black,  shining,  moderately 
densely  punctured,  and  with  white  scales  very  sparsely  placed.  Antennse 
brownish,  sparsely  hairy.  Thorax  oval,  narrowed  at  apex,  slightly  broader 
than  long,  sides  arcuate,  base  slightly  narrower  and  feebly  bisinuate  ;  disc 
moderately  convex,  densely,  and  rather  coarsely  punctured,  rugulose  at 
the  sides,  surface  black,  shining,  with  whitish  scales  very  sparsely  placed. 
Scutellum  smooth,  shining.  Elytra  oblong,  oval,  base  emarginate  at 
middle  ;  disc  moderately  convex,  and  with  rows  of  large,  moderately  deep 
punctures,  rather  closely  placed,  the  thii"d  and  fourth  somewhat  irregular 
at  the  declivity  ;  surface  black,  shining,  sparsely  punctured  and  with  white 
scales  very  sparsely  placed,  becoming  condensed  in  small  round  spots, 
distantly  placed  on  alternate  intervals.  Body  beneath  black,  shining, 
sparsely  punctured  and  with  very  few  scales.  Legs  black,  sparsely  scaly. 
Length  .26  inch  ;  6.5  mm. 

This  species  is  of  the  size  of  L.  hispidus  Gyll.  (Cuba)  and  of  very 
similar  ornamentation.  The  thorax  is,  however,  narrower  at  base,  eyes 
more  prominent  and  vertex  more  convex. 

One  specimen,  Florida. 

Group  II.     Omllel. 

Rostrum  longer  than  the  head,  narrower,  quadrangular,  and  slightly 
dilated  in  front.  Gense  feebly  emarginate.  Thorax  truncate  at  apex  and 
base.  Elytra  not  wider  than  the  thorax,  feebly  emarginate  at  base,  humeri 
either  very  oblique  or  broadly  rounded.  Articular  surfaces  of  hind  tibise 
very  feebly  cavernous. 

The  diffei'ences  between  this  group  and  the  preceding  are  feeble,  and 
with  other  genera  would  probably  be  united  with  it. 

Two  genera  are  at  present  known  to  me,  one  only  native. 
Second  segment  of  abdomen  not  longer  than  the  two  follow- 
ing together,  first  suture  nearly  straight.     Second  joint 
of  funicle  short OMILEUS. 


102  OTIORIIYXCHID^. 


[Horn. 


Second  segment  longer  than  tlie  two  following,  first  suture 
strongly  arcuate.     Second  joint  of  funicle  longer  than 

the  first gen.  nov. 

The  type  of  the  second  genus  is  Oeo7ie?nus  alternann  Boh.  (Cuha).  The 
articular  surfaces  of  the  hind  tibite  are  not  scaly  in  this  species  as  stated  by 
Lacordaire,  Genera,  vi,  p.  131.  Q.  aureosquamosios  Duval,  (Cuba)  does 
not  belong  to  the  present  tribe,  but  should  form  a  new  genus  of  Cyphini, 
as  defined  in  the  present  memoir. 

OMILETJS  n.  g. 
Rostrum  longer  than  the  head  and  very  slightly  narrower,  cylindrical 
at  base,  slightly  flattened  above,  feebly  dilated  and  emarginate  at  tip  ; 
genae  not  emarginate.  Scrobes  deep,  well  defined,  slightly  arcuate,  passing 
obliquely  beneath  and  slightly  in  front  of  the  eyes.  Eyes  oval,  slightly 
longitudinal.  Antennae  moderate  ;  scape  attaining  the  posterior  margin  of 
the  eyes,  feebly  thickened  ;  funicle  7-joiated,  first  joint  moderate,  second 
scarcely  longer  than  the  third,  3-7  short,  sub-equal  ;  club  oval.  Thorax 
truncate  at  apex  and  base.  Scutellum  small,  oval.  Elytra  oval,  not  wider 
at  base  than  the  thorax,  humeri  broadly  rounded.  Metasternum  moderate. 
Intercoxal  process  bi"oad,  rounded  in  front,  second  segment  equal  to  the 
two  following  together,  first  suture  very  nearly  straight.  Anterior  and 
middle  tibiie  mucronate.  Articular  surfaces  of  hind  tibiae  feebly  cavernous, 
glabrous. 

O.  epicaeroid.es,  n.  sp. 

Form  elongate,  oval,  surface  densely  covered  with  cinereous  scales, 
variegated  with  brown.  Head  and  rostrum  slightly  longer  than  the  thorax, 
densely  punctured  and  covered  with  cinereous  scales,  at  tip  nearly  naked. 
Thorax  as  broad  as  long,  apex  slightly  narrower  than  the  base,  sides 
strongly  arcuate,  median  line  moderately  impressed,  surface  sparsel}' tuber- 
culate,  densely  covered  with  cinereous  scales,  a  broad  median  and  narrow 
lateral  stripe  fuscous.  Elytra  regularly  oval,  striate,  striae  with  moderately 
coarse  punctures,  intervals  feebly  convex,  and  each  with  two  rows  of 
scale-like  hairs,  surface  densely  covered  with  cinereous  scales,  disc  with 
large  fuscous  spot  nearlj"-  divided  by  a  transverse  cinereous  fascia  inter- 
rupted at  middle.  Body  beneath  densely  covered  with  cinereous  scales. 
Legs  densely  scaly,  femora  darker  at  base.  Length  .30-.33  inch;  7.5-8  mm. 

The  facies  of  this  species  is  almost  exactly  that  of  certain  elongate  forms 
of  EpiccBi'us  imhricatus,  and  it  would  have  been  placed  in  the  same  tribe 
if  the  structure  of  the  sternal  side  pieces  were  similar. 

This  species  occurs  in  Texas. 

Group  III.     Evotl. 

Rostrum  elongate,  strongly  dilated  and  auriculate  at  tip.  Scrobes  visible 
from  above.  Scutellum  distinct.  Elytra  wider  at  base  than  the  thorax, 
humeri  moderately  prominent  ;  marginal  stria  entire.  Articular  surfaces 
of  hind  tibiae  feebly  cavernous.     Claws  free. 

One  genus  only  is  known  to  me  which  can  be  placed  here. 


Horn.] 


PIIYLLOBIINI.  103 


EVOTUS  Lee. 


Eootus  Lee,  American  Naturalist,  1874,  pp.  458-9. 

Rostrum  horizontal,  longer  than  twice  the  head,  narrower,  sub-quad- 
rangular and  compressed  at  base,  tip  dilated  and  nearly  twice  as  broad  as 
at  middle,  auriculate,  and  broadly  emarginate  ;  gense  not  emarginate. 
Sub-mentum  distinctly  pedunculate.  Mentum  oval,  longer  than  wide, 
maxilltB  slightly  visible  at  the  sides.  Scrobes  visible  from  above  in  front 
and  moderately  deep,  very  nearly  straight,  very  shallow  posteriorly,  and 
directed  to  the  lower  margin  of  the  eyes.  Eyes  oval,  slightly  oblique  and 
sub-acute  beneath.  Antenna}  long,  rather  slender  ;  scape  gradually  clavate 
and  attaining  the  middle  of  the  eye  ;  funicle  7-jointed,  slightly  longer  than 
the  scape,  joints  1-2  longer,  the  second  longer  than  the  first,  joints  3-7 
obconical,  the  seventh  longer  than  the  preceding  ;  club  elongate,  oval. 
Thorax  transversely  oval,  apex  truncate,  base  slightly  arcuate.  Scutellum 
oval.  Elytra  oval,  broader  at  base  than  the  thorax,  humeri  obtuse,  mode- 
rately prominent.  Metasternum  moderate,  side  pieces  wide,  formed  as 
defined  for  the  division.  Intercoxal  process  broad,  oval  at  tip.  Second 
segment  of  abdomen  slightly  longer  than  the  two  following  together, 
separated  from  the  first  by  an  arcuate  suture.  Anterior  and  middle  tibiae 
mucronate  at  tip.  Articular  surfaces  of  hind  tibiae  feeblj^  cavernous  and 
glabrous.  Tarsi  rather  slender,  third  joint  deeply  bilobed,  last  joiiit  slender 
and  as  long  as  the  first  two.     Claws  moderate,  free. 

This  genus  has  been  defined  at  greater  length  than  has  been  the  custom 
in  this  paper,  on  account  of  the  very  remarkable  assemblage  of  characters 
it  presents.  Were  it  not  for  the  very  plain  scar  on  the  mandibles  it  might 
be  suspected  to  have  some -affinity  with  the  genera  allied  to  AlopMis,  etc. 

E.  naso  Lee.  (Oliorht/nchus)  Pacif.  R.  R.  Rep.  p.  5G  ;  Am.  Nat.  1874, 
p.  459. 

Form  elongate,  oval,  color  black  shining,  moderately  densely  covered 
with  scales,  varying  in  color  from  ochreous  to  cinereous.  Head  and 
rostrum  longer  than  the  thorax,  moderatel}^  densely  punctured,  sparsely 
scaly,  a  fine  median  line,  more  distinctly  impressed  on  the  vertex.  Thorax 
oval,  slightly  broader  than  long,  narrower  in  front,  apex  truncate,  base 
feebly  arcuate,  sides  rather  strongly  arcuate  in  front  ;  median  line  indis- 
tinct, disc  moderately  convex,  densely  punctured,  scales  sparse,  except  on 
the  median  line  and  sides.  Scutellum  densely  scaly  and  paler.  Elytra 
oval,  moderately  convex,  with  rows  of  moderate  punctures,  intervals 
densely  punctulate,  surface  moderately,  densely  scaly,  and  variegated  with 
paler  spots  at  the  sides.  Body  beneath  and  legs  densely  scaly  and  hairy, 
scales  pearly.     Length  .30-  36  inch  ;  7.5-9  mm. 

Occurs  rather  abundantly  in  Oregon,  and  also  in  Colorado. 

Tribe  IV.     phtllobiixi. 

Head  prolonged  behind  the  eyes,  these  round  or  slightly  oval.  Mentum 
small,  usually  concealing  the  maxillee.     Rostrum  usually  stout,  cylindrical. 


104  OTIORHYNCHID^. 


[Horn. 


truncate  or  very  feebly  emarginate  at  tip.  Genae  not  emarginate.  Scrobes 
short,  snb-terminal.  Meso-  and  metasternal  side  pieces  broad,  the  former 
diagonally  divided.  Articular  surfaces  of  the  hind  tibiie  terminal,  glabrous. 
Claws  connate.  Tenth  elytral  stria  free  in  its  entire  extent.  Scutellum 
distinct. 

The  above  characters  serve  to  isolate  a  number  of  genera  evidently 
closely  allied  among  themselves,  and  also  with  well-marked  affinity  with 
certain  members  of  the  tribe  Cyphini.  The  mandibular  scar  is  not  promi- 
nent in  any  of  our  genera,  but  is  round  and  directly  on  the  face  of  the 
mandible  itself.  The  deciduous  piece  is  moderately  long,  glabrous  and 
regularly  falciform.  The  mentum  vaiies  in  size  in  the  genera  of  this 
group,  but  not  to  the  extent  of  causing  Scythropus  and  Phyllobius  to  be 
widely  separated. 

The  following  genera  compose  this  tribe  in  our  fauna  : 
Elytra  wider  at  base  than  the  thorax. 

Mentum  entirely  concealing  the  maxillaj PHYLLOBIUS. 

Mentum  smaller,  maxillaj  visible  at  the  sides. 
Rostrum   slightly  narrower  than  the  head  ; 

alae  slightly  divergent OYPHOMIMUS. 

Rostrum  short,  stout  ;  al*  not  divergent SCYTHROPUS. 

Elytra  elongate,   oval,  as  narrow  at  base  as  the 
thorax. 

Mentum  small,  maxilla?,  entirely  exposed MITOSTYLUS. 

In  Mitostylus  the  sub-mentum  is  very  slightly  pedunculate.  Scythropus 
has  the  gula  semicircularly  emarginate,  and  the  maxillae  visible  at  the  sides 
of  the  mentum,  the  other  three  genera  have  the  gular  notch  nearly  square. 
In  the  genera  2  and  4  the  mentum  is  very  narrow  and  the  other  parts  of 
the  mouth  very  distinctly  visible. 

PHYLLOBIUS  Germ. 

Phyllobius  Germ.  Ins.  Spec.  nov.  p.  447. 

Rostrum  as  long  as  the  head  and  somewhat  narrower,  feebly  dilated  and 
slightly  emarginate  at  tip.  Scrobes  in  the  form  of  fossets,  sub-terminal. 
Eyes  oval,  slightly  oblique,  moderately  prominent.  Antenna?  long  and 
slender  ;  scape  slender,  feebly  clavate,  attaining  the  margin  of  the  thorax, 
funicle  7  jointed,  1-2  longer,  the  second  slightly  longer  than  the  first,  3-7 
sub-equal,  obconical;  club  elongate  oval.  Thorax  oval  broader  than  long. 
Scutellum  distinct.  Elytra  broader  at  base  than  the  thorax,  humeri 
moderately  prominent,  oblong.  Intercoxal  process  oval.  Second  segment 
not  as  long  as  the  two  following  united,  separated  from  the  first  by  a  suture 
nearly  straight.  Femora  clavate,  the  anterior  more  strongl}^  Anterior  and 
middle  tibia?  mucrouate,  articular  surfaces  of  hind  tibiae  strictly  terminal. 
Claws  connate.     Body  densely  scaly. 

One  species  is  known  to  me  in  our  fauna  which  may  be  merely  acciden- 
tal in  its  occurrence  as  I  have  seen  but  one  specimen. 


Horn.] 


PHYLLOBIINI.  105 


P.  calcaratus  Fab.  (Curculio)  Ent.  Syst.  i,  2,  p.  485  ;  Gyll.  Sch.  Gen. 
Cure,  ii,  p.  435. 

Oblong,  black,  moderately,  densely  covered  with  bhiish-green  piliform 
scales,  legs  reddish.  Head  and  i-ostrum  longer  than  the  thorax,  densely 
punctured,  sparsel}^  scaly.  Thorax  broader  than  long,  slightly  consti'icted 
and  narrower  at  base  than  apex,  sides  rather  strongly  arcuate,  disc  convex, 
moderately  densely  punctured,  not  densely  scaly.  Elytra  oblong,  parallel, 
acuminate  posteriorly,  nearly  three  times  as  long  as  wide,  striate,  striae 
with  moderate  punctures,  intervals  feebly  convex,  densely  punctured  and 
moderately,  densely  scaly.  Body  beneath  very  sparsely  covered  with 
piliform  scales.  Legs  rufous,  sparsely  hairy,  femora  strongly  dentate. 
Antennifi  rufous.     Length  .30  inch  ;  7.5  mm. 

One  specimen  from  Canada. 

The  Catalogus  of  Gemminger  and  Harold  gives  glaucus  Scop,  as  an 
older  name.  As  the  species  is  introduced  and  hardly  concerns  our  f\iuna, 
I  adopt  the  name  used  by  English  entomologists,  leaving  bibliography  to 
those  more  intimately  concerned. 

CYPHOMIMUS  n.  g. 

Rostrum  a  little  shorter  and  narrower  tlian  the  head,  sub-cylindrical» 
alae  slightly  divergent,  genie  not  emargiuate,  tip  feebly  notched.  Head 
moderately  prolonged  beliind  the  eyes.  Scrobes  cavernous  in  front, 
suddenly  flexed,  passing  beneath  at  some  distance  from  the  eyes.  Eyes 
round,  moderately  prominent.  Antenna?  rather  slender.  Scape  slender, 
gradually  thicker  to  tip  and  nearly  attaining  the  margin  of  the  thorax  ; 
funicle  7-jointed,  first  joint  nearly  as  long  as  the  two  following,  2-7  obconi- 
cal,  gradually  decreasing  in  length  ;  club  elongate,  oval.  Thorax  cylin- 
drical, slightly  narrower  in  front.  Scutellum  small,  triangular.  Elytra 
wider  at  base  than  the  thorax,  humeri  moderately  prominent.  Metaster- 
num  moderate.  Intercoxal  process  oval  at  tip.  Second  segment  of 
abdomen  longer  than  the  two  following,  first  suture  arcuate  at  middle. 
Tibiae  not  mucronate,  articular  surfoce  of  hind  tibia?  terminal,  glabrous. 
Claws  connate  at  base.     Marginal  elytral  stria  free. 

In  form  and  general  appearance  the  only  species  composing  the  genus 
resembles  Brachystylus  acutus  but  with  a  longer  head  and  rostrum. 

C.  dorsalis,  n.  sp. 

Form  oblong,  oval,  narrowed  in  front,  surface  densely  scaly.  Head  and 
rostrum  as  long  as  the  thorax,  surface  densely  covered  with  whitish  scales, 
a  dark  stripe  on  the  vertex  and  behind  each  eye,  and  with  erect,  short 
hairs.  Thorax  cylindrical,  slightly  wider  than  long,  narrower  and  feebly 
constricted  in  front,  apex  obliquely,  base  squarelj^  truncate,  sides  feebly 
arcuate,  apical  margin  above  slightly  thickened,  surface  sparsely  punctured 
and  with  short,  erect  hairs,  densely  covered  with  cinereous  scales,  and 
with  three  longitudinal  stripes  darker.  Elytra  nearly  twice  as  wide  as  the 
thorax,  humeri  prominent,  sides  slightly  divergent,  surface  striate,  striae 
punctured,  intervals  flat,  with  a  single  row  of  short  black    hairs,  densely 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  N 


106  OTIORHYNCHID^. 


[Horn. 


covered  with  cinereous  scales,  a  large  discal  space  fuscous,  very  broad  at 
the  declivitj^  extending  anteriorly  along  the  intervals  1-2-3  and  at  base  4; 
third  interval  at  base  with  a  cinereous  line  ;  a  small  fuscous  spot  at  the  tip 
of  the  fifth  interval.  Body  beneath  piceous,  shining,  sparsely  scaly.  Legs 
rufous,  femora  at  middle  piceous,  sparsely  scalj'^  and  pilose.  Length  .20 
inch  ;  5  mm. 

One  specimen,  Missouri. 

Can  this  possibly  be  Polydrosus  americanus  Gyll.  ?  (Sell.  Gen.  Cure,  ii, 
p.  136) .     I  cannot  otherwise  identify  the  species. 

SCYTHROPUS  Sch. 

ScytJiropus  Sclionh.  Cure.  Disp.  Meth.  p.  140. 

Rostrum,  short,  stout,  slightly  narrowed  in  front,  angles  rounded,  de 
clivous  and  truncate  at  tip,  with  arcuate  carina  and  smooth  space.  Scrobes 
short,  badly  limited  and  slightly  arcuate.  Eyes  distant  from  the  thorax, 
round,  slightly  prominent.  Antenna}  long,  scape  long,  slender,  gradually 
clavate,  slightly  arcuate  and  passing  the  eyes  behind  ;  funicle  7-jointed, 
1-2  longer,  the  first  slightly  longer  than  the  second,  3-7  shorter,  gradually 
decreasing ;  club  elongate,  oval.  Thorax  short,  cylindrical,  slightly 
narrower  in  front.  Scutellum  small,  nearly  oval.  Elytra  wider  at  base 
than  the  thorax,  feebly  emarginate,  humeri  obtusely  prominent.  Metas- 
ternum  moderately  long.  Intercoxal  process  oval  at  tip.  Second  abdomi- 
nal segment  longer  than  the  two  following  together,  first  suture  arcuate  at 
middle.  Articular  surfaces  of  hind  tibias  terminal.  Tarsal  claws  small, 
connate  at  base.     Body  densely  scaly. 

In  addition  to  the  above  characters  it  will  be  seen  that  the  gular  notcli  is 
semicircular,  the  mentum  small  and  rather  narrow.  The  mandibles  are 
short,  robust,  glabrous,  the  scar  oval,  terminal  and  not  prominent.  The 
deciduous  pieces  are  long,  moderately  stout  and  falciform. 

Two  species  occur  in  our  fauna.  In  one,  elegans,  the  anterior  and  middle 
tibise  are  sinuate  within,  especially  in  the  (^,  the  other,  calif  or  nicus,  the 
tibiaj  are  scarcely  perceptibly  sinuate.  The  vestiture  also  varies  and  may 
be  thus  expressed  : 

Body  densely  covered  with   scales  of  variable   color 

from  brilliant  green  to  cinereous,  suture  always, 

sides  usually  of  paler  color elegans. 

Body    less    densely    covered   with    piliform    scales, 

brownish  or  ferruginous,  region  of  the  suture  mar- 

inorate  with  white californicus. 

S.  elegans  Couper.  {Polydrosus)  Canadian  Naturalist,  1865,  p.  63. 

Form  oblong,  densely  scaly.  Head  and  rostrum  as  long  as  the  thorax, 
surface  densely  scaly  except  at  tip.  Thorax  wider  than  long,  apex  and 
base  truncate,  a  slight  constriction  at  the  sides  behind  the  apical  margin, 
sides  moderately  arcuate,  disc  moderately  convex,  surface  densely  scaly. 
Elytra  oblong,  gradually  broader  behind  the  humeri,  narrowed  at  apical 


Horn.] 


PHYLLOBIINI.  107 


third,  striate,  slriae  finely  and  closely  punctured,  intervals  flat,  densely 
scaly  and  with  minute  sub-erect  hairs.  Body  beneath  densely  scaly  and  in 
color  similar  to  the  upper  surface.  Legs  piceous  or  piceo-rufous,  femora 
densely  scaly,  tibiae  paler  and  more  distinctly  pubescent.  Length  .20-. 28 
inch  ;  5-7  mm. 

The  color  of  the  scales  is  very  variable  and  may  be  rather  brilliant  green, 
sliglitly  cupreous,  plumbeous  or  cinereous.  Usually  the  sides  of  the  elytra 
are  paler  than  the  rest  of  the  surface,  the  suture  ahvaj^s  so. 

Occurs  from  Canada  to  California. 

S.  californicus,  n.  sp. 

Form  of  elegans  but  slightly  narrower.  Surfoce  less  densely  covered 
with  brownish  or  ferruginous  piliform  scales,  the  region  of  the  suture 
irregularly  marmorate  with  white.  Thorax  scaly,  broader  than  long. 
Legs  pale  rufous,  sparsely  pubescent.  Tibi*  very  feebly  arcuate.  Length 
.24  inch  ;  6  mm. 

These  few  words  give  the  differences  observable  between  the  two 
species.  The  head  is  also  narrower,  and  the  rostrum  less  robust.  8.  call 
fornicus  resembles  the  mustela  of  Europe. 

Two  siiecimens,  Eldorado  Co.,  California. 

MITO STYLUS  n.  g. 

Rostrum  cylindrical,  shorter  than  the  head,  slightly  narrower,  tip  very 
feebly  emarginate,  and  with  a  smooth  triangular  space.  Scrobes  short, 
badly  defined,  suddenly  flexed.  Eyes  longitudinally  oval,  slightly  trun- 
cate in  front.  Antennae  slender,  three-fourths  the  length  of  the  entire  body; 
scape  long,  slender,  slightly  clavate  and  attaining  the  margin  of  the  thorax; 
funicle  7-jointed,  1-2  longer,  the  first  longer  than  the  second  ;  3-7  obconical, 
gradually  shorter  ;  club  elongate,  oval,  pointed  at  tip.  Thorax  cylindrical, 
sides  feebly  arcuate.  Scutellum  small,  triangular.  Elytra  not  wider  at  base 
than  the  thorax,  oblong  oval.  Metasternura  rather  short.  Intercoxal  pro- 
cess broadly  oval,  second  segment  longer  than  the  two  following,  first 
suture  arcuate  at  middle.  Tibiae  straight,  tarsi  slender,  claws  connate. 
Tenth  elytral  stria  free  in  its  entire  extent.     Body  densely  scaly. 

The  gular  notch  is  rhomboidal,  the  mentum  narrow,  an  extremely 
feeble  peduncle,  maxillae  distinctly  visible,  and  the  labial  palpi  rather 
prominent.     This  insect  resembles  the  figures  of  Eusomus  ovitlum. 

M.  tenuis,  n.  sp. 

Form  rather  slender,  surface  densely  covered  with  bluish  white  scales. 
Head  and  rostrum  longer  than  the  thorax,  sparsely  punctured,  moderately 
densely  scaly.  Thorax  cylindrical,  as  wide  as  long,  sides  feebly  arcuate, 
apex  slightly  obliquely,  base  squarely  truncate  and  slightly  narrower  than 
the  apex,  disc  moderately  convex  and  scaly,  sparsely  punctured.  Elytra 
oblong  oval,  striate,  striae  moderately  closely  punctured,  intervals  flat, 
densely  scaly  and  with  minute,  erect,  whitish  hairs.  Body  beneath  densely 
scaly.  Legs  rufous,  femora  darker  and  sparsely  scaly,  tibi*  pubescent. 
Length  .12-.  14  inch  ;  3-3.5  mm. 


108  OTIORHYNCHID^. 


[Horn. 


This  insect  has  been  mentioned  by  Dr.  Leconte  (Amer.  Nat.   1874,   p. 
457)  as  being  probably  a  Macrostylus. 
Occurs  in  Texas. 

Tribe  V.     pro.UECOPINI. 

Rostrum  short,  stout,  dilated,  {Coleocerus)  or  not  {Eudiagogus)  in  front, 
tip  eraarginate.  AntennsE  moderate,  scape  passing  the  eyes  or  not,  funicle 
7-jointed;  club  oval.  Scrobes  deep,  arcuate,  confluent  or  not  beneath. 
Thorax  with  large  lateral  lobes  and  deeply  emarginate  beneath.  Scutellum 
distinct.  Abdomen  normal.  Tibite  feebly  mucronate.  Tarsal  claws 
free. 

This  tribe,  corresponding  with  that  of  Lacordaire,  may  be  considered 
the  most  sharply  defined  and  natural  of  the  division.  Its  small  and  re- 
tracted mentum,  large  thoracic  lobes  and  the  deep  emargination  of  the 
front  of  the  thorax  beneath,  at  once  distinguish  it.  As  in  the  preceding 
tribe  the  gen*  are  entire  and  the  min:libles  covered  at  base. 

The  following  are  the  genera  in  our  fauna: 
Rostrum  strongly  dilated  at  tip,  scrobes  meeting 

beneatli  the  e3'es  ;  mesosternum  protuberant...         COLEOCERUS. 
Rostrum  very  feebly  dilated,   cylindrical  flattened, 
scrobes  not  meeting  beneath  tlie  eyes  but  turn 
ing  forward.     Mesosternum  not  protuberant. 
Elytra  broadly  oval,  scutellum  small.    Metaster- 

num  short ARAOANTHUS. 

Elytra  oblong,  broader  at  base  than  the  thorax, 
scutellum  transverse.  Metasternum  mode- 
rately long EUDIAG-OGUS. 

In  the  last  two  genera  the  articular  cavities  of  the  hind  tibiaj  are  shallow, 
the  outer  free  edge  is,  however,  double  in  Eudiagogus.  In  Coleocerus  the 
hind  tibiae  is  truncate  at  tip,  forming  an  oval,  scaly  space,  the  outer  edge 
of  which  is  formed  by  a  moderately  sharp  ridge  not  margined  with 
spinules.  The  tibiae  are  feebly  mucronate  in  all  of  the  genera,  although  the 
contrary  is  stated  by  Lacordaire. 

COLEOCERUS  Sch. 

Coleocerus  Schonh.  Gen.  Cure,  v,  p.  927. 

Batliyris  Lee.  Amer.  Nat.  1874,  p.  461. 

Rostrum  not  longer  nor  narrower  than  the  head,  very  short  and  stout, 
ala3  prominent  laterally  and  beneath,  tip  emarginate,  in  front  of  each  eye  a 
triangular  impression,  above  a  longitudinal  groove.  Scrobes  sharply  de- 
fined, arcuate  and  confluent  beneath.  Eyes  oval,  pointed  beneath,  not  pro- 
minent. Antennae  moderate;  scape  gradually  clavate,  attaining  the  front 
of  the  eyes;  funicle  7-jointed,  1-2  longer,  the  first  longer  than  the  second, 
3-7  short,  gradually  decreasing;  club  oval.  Thorax  variable,  trapezoidal 
{dispar)  or  transverse  {marmoratus),  ocular  lobe  broad  and  prominent. 
Scutellum  transverse,  enclosed  by  the  elytra.  Elytra  oblong  oval,  parallel, 


Horn.] 


PROMECOPINI.  109 


slightly  wider  than  the  thorax  (marmoratus)  or  not.  Mesosternnni  protuber- 
ant in  tlie  form  of  an  obtuse  spine.  Metasternum  moderate,  side  pieces  wide. 
Intercoxal  process  broad,  oval  at  tip,  second  segment  longer  than  the  two  fol- 
lowing united,  first  suture  strongly  arcuate.  Anterior  and  middle  tibi;«  mu- 
cronate,  articular  surface  of  hind  tibiae  internal,  cavernous,  the  tip  truncate, 
and  with  oval  scaly  space.     Claws  free.     Body  oval,  densely  scaly. 

The  scar  left  after  the  disappearance  of  the  deciduous  piece  is  small  and 
difficult  at  first  to  discover,  and  the  genus  was  placed  in  the  following  sub- 
family. (Amer.  Nat.  1874,  p.  461).  Two  other  genera  are  very  closely 
allied  to  this,  and  should  probably  not  be  separated,  Pororhynchus  and 
Periorges.  The  former  has  the  thorax  margined  near  the  base  as  in 
Coleocerus,  but  the  mesosternum  is  not  protuberant;  the  latter  has  the  pro- 
tuberant mesosternum,  but  not  the  thoracic  margin.  One  of  our  species 
(^marmoratus)  might  be  referred  to  Periorges,  but  the  mesosternum  is  pro- 
tuberant exactly  as  in  Coleocerus,  while  in  that  genus  the  protuberance  is 
slight  and  somewhat  laminiform. 

Two  species  occur  in  our  fauna. 

Thorax  margined  at  the  sides,  at  base dispar. 

Thorax  not  margined marmoratus. 

C.  dispar  Lee.  (Bathyris)  Amer.  Nat.  1874,  p.  462. 

Form  oblong  oval,  densely  scaly.  Head  and  rostrum  as  long  as  the 
thorax.  Rostrum  deeply  sulcate,  moderately  densely  punctured,  and 
densely  covered  with  rounded  scales,  of  dark  cinereous  color,  a  paler 
line  on  the  vertex.  Thorax  rhomboidal,  gradually  narrower  from  base 
to  apex,  sides  dilated  near  the  hind  angles,  and  with  a  short  sub-acute 
ridge,  disc  moderately  convex,  densely  covered  with  dark  cinereous 
scales,  median  line  and  sides  paler,  a  small  spot  on  each  side  of  middle 
darker.  Scutellum  white.  Elytra  oblong,  not  wider  than  the  expanded 
thorax,  striate,  strife  with  moderately  large  punctures,  intervals  flat, 
each  with  a  row  of  short,  erect  hairs;  surfece  densely  covered  with 
brownish  scales;  tip,  and  a  short  oblique  band  in  front  of  middle  cioere- 
ous.  Body  beneath  and  legs  densely  covered  with  nearly  white  scales, 
darker  on  the  outer  side  of  the  legs.     Length  .18  inch;  4.5  mm. 

One  specimen.  Arizona,  Dr.  Webb.  From  memory  alone,  I  am  in- 
clined to  think  this  species  identical  with  C.  variegahis  which  I  saw  in  the 
cabinet  of  M.  Aug.  Salle,  of  Paris. 

O.  marm.oratus,  n.  sp. 

Form  of  dispar,  densely  scaly.  Thorax  broader  than  long,  sides  mode- 
rately arcuate,  widest  ali  middle,  disc  moderately  convex,  covered  densely 
with  Avhitish  scales,  with  black  and  fuscous  sparsely  intermixed,  and  a 
transverse  basal  band  black.  Scutellum  white.  Elytra  oblong  oval,  indis- 
tinctly striate,  and  with  moderately  large  punctures  distantly  placed,  inter- 
vals flat  without  erect  hairs,  surface  densely  scaly;  scales  cinereous  and 
brown  intermixed,  and  with  three  very  irregular  black  fascia;  tlie  first  ob- 
lique, the  second  median,  transverse,  the  third  sub-apical.     Body  beneath 


110  OTIOEHYKCHID-^E. 


[Horn. 


and  legs  densely  covered  with  cinereous  and  brown  scales  irregularly  inter- 
mixed.    Length  .16  inch;  4  mm. 

This  species  is  relatively  more  robust  than  the  preceding.  It  appears  to 
constitute  a  form  intermediate  between  the  genus  Periorges  and  Coleocerus. 
It  is  certainly  not  the  female  of  dupar  as  suspected  by  Dr.  LeConte. 

Occurs  in  Texas. 

ARACANTHUS  Sch. 

Aracanthus  Schonh.  Gen.  Cure,  v,  1,  p.  821. 

Rostrum  scarcely  longer  than  the  head,  stout,  parallel,  finely  canaliculate 
above,  tip  feebly  emarginate.  Scrobes  linear  moderately  arcuate,  passing 
immediately  in  front  of  the  eyes  beneath  the  head,  and  turning  slightly  for- 
ward. Eyes  transversely  oval,  pointed  beneath.  Submentum  with  a  short 
broad  peduncle,  not  emarginate.  Antennae  moderate,  scape  gradually  cla- 
vate,  attaining  the  middle  of  the  eye;  funicle  7-jointed,  1-2  longer,  the  first 
longer  than  the  second,  3-7  gradually  shorter,  slightly  flattened;  club  oval. 
Thorax  slightly  wider  than  long,  ocular  lobes  prominent.  Scutellum  very 
small,  triangular.  Elytra  oval,  very  little  broader  than  the  thorax  at  base, 
humeri  rectangular.  Mesosternum  oblique,  metasternum  short.  Intercoxal 
process  oval  at  tip.  Abdomen  normal.  Anterior  and  middle  tibiiie  feebly 
mucronate,  articular  surfaces  of  hind  tibi*  terminal,  not  cavernous.  Claws 
free. 

This  genus  is  closely  allied  to  Eudiagogus,  and  differs  in  having  the 
thorax  nearly  as  wide  at  base  as  the  elytra;  the  scutellum  very  small,  and 
the  peduncle  of  the  submentum  not  emarginate.  The  genus  was  named,  but 
not  characterized  by  Say. 

A.  pallidus  Say,  Cure.  p.  9;  Compl.  works,  1,  p.  268;  Sclionh.  loc.  cit. 

Form  oval,  surface  densely  scaly.  Head  and  rostrum  not  longer  than  the 
thorax,  canaliculate,  moderately,  densely,  punctured,  and  moderately  cov- 
ered with  scales  of  a  cupreous  lustre.  Thorax  slightly  wider  than  long, 
base  arcuate,  sides  in  front  arcuate,  posteriorly  sub-sinuate,  disc  convex, 
with  coarse,  rather  closely  placed  punctures,  surface  densely  scaly,  scales 
fuscous,  sides  and  median  line  paler.  Elytra  oval,  scarcely  striate  and 
with  rows  of  moderately  large  punctures  not  closely  placed,  surface  densely 
covered  with  cinereous  scales,  finely  variegated  with  fuscous,  and  witli 
short,  erect,  whitish  hairs.  Body  beneath  and  legs  very  sparsely  scaly. 
Length  .12  inch;  3  mm. 

Many  of  the  scales  covering  the  surface  have  a  slight  cupi-eous  lustre,  es- 
pecially those  near  the  sides. 

Occurs  in  Texas  and  Missouri. 

EUDIAGOGUS  Sch. 

Eudiagogus  Schonh.  Gen.  Cure,  vi,  1,  p.  307. 

Rostrum  as  long  as  the  head,  stout,  slightly  narrower  in  front,  alse  very 
feebly  prominent,  tip  slightly  notched,  gense  entire.  Gula  quadrangularlj' 
emarginate,  submentum  pedunculate,  and  deeply  emarginate,  mentum 
small,  retracted.     E3'^es  oval,  pointed  beneath.     Scrobes  narrow,  well-de- 


Horn.] 


PROMECOPINI.  Ill 


fined,  passing  immediately  beneath,  and  slightly  beyond  the  lower  border 
of  the  eye,  not  continued  beneath  the  beak.  Antennpe  moderate;  scape 
gradually  clavate,  slightly  arcuate,  passing  slightly  the  anterior  border  of 
the  eye;  funicle  7  jointed,  1-2  feebly  elongated,  the  first  longer  than  the 
second,  3-7  gradually  smaller;  club  oval.  Thorax  broader  than  long,  base 
slightly  narrower,  ocular  lobes  very  prominent.  Scutellum  oval  or  trans- 
verse. Elytra  oblong,  wider  at  base  than  the  thorax,  humeri  oblique,  sides 
parallel.  Mesosternum  not  protuberant.  Metasternum  short.  Intercoxal  pro- 
cess broad,  oval  at  tip.  Second  abdominal  segment  longer  than  the  two  fol- 
lowing, first  suture  sti'ongly  arcuate.  Anterior  and  middle  tibiffi  mucronate 
at  tip,  articular  surface  of  hind  tibiie  internal,  not  cavernous.  Claws  fx'ee. 
Body  densely  scaly. 

This  genus  may  be  at  once  distinguished  from  all  the  others  of  the  tribe 
by  the  acute  emargination  of  the  submentum. 

Two  species  occur  in  our  fauna,  which  are  distinguished  as  follows  : 
Scutellum  transverse,  twice  as  wide  as  long.  Thorax 

with   four  discal  black  spaces,    the  two  basal 

smaller.    Black  stripes  of  elytra  regular pulcher. 

Scutellum  smaller,  oval.     Thorax  with  two  broad, 

discal,  black  stripes  narrowly  separated.     Black 

stripes  of  elytra  with  irregular  margins Rosenschceldi. 

E.  puleher  Fahrs.  Schonh.  Gen.  Cure,  vi,  1,  p.  310. 

Form  oblong,  densely  scaly.  Head  and  rostrum  shorter  than  the  thorax, 
densely  covered  with  cupreous  scales,  a  round  spot  black.  Rostrum  with 
impressed  median  line,  tip  with  feeble  triangular  impression.  Thorax 
broader  than  long,  sides  strongly  arcuate  in  front,  and  gradually  narrowing 
to  base,  the  latter  slightly  arcuate,  disc  moderately  punctured,  surface 
densely  covered  with  cupreous  scales,  and  with  four  black  spots;  the  pos- 
terior smaller,  sides  of  thorax  cupreous,  beneath  the  margin  a  black  spot. 
Scutellum  transverse.  Elytra  oblong,  moderately  convex,  with  rows  of 
moderate  punctures  not  closely  placed;  surface  densely  scaly,  sutural  inter- 
val cupreous;  a  broad,  black  stripe  slightly  narrowed  at  its  middle,  and  not 
attaining  the  tip,  at  the  side  two  oblong  black  spots,  one  humeral,  the  other 
sub-apical,  sometimes  united  in  an  entire  stripe,  limb  and  lateral  vitta  cu- 
preous. Body  beneath  less  densely  scaly,  scales  pale  cupreous,  a  black 
spot  at  the  side  of  the  first  two  ventral  segments.  Legs  less  densely  scaly, 
femora  nearly  nude  at  apex  and  base.  Tibiae  with  short,  spinulose  hairs 
within.     Length  .16-. 33  inch;  4-8  mm. 

Two  varieties  occur.  One  has  the  lateral  black  stripe  entire,  in  the  other 
it  is  broadly  divided. 

Occurs  usually  in  the  first  variety  in  Florida,  and  in  the  latter  in  Texas. 

E.  Rosenschceldi  Fahrs.  Schonh.  Gen.  Cure,  vi,  1,  p.  309. 

Form  oblong  oval,  densely  scaly.  Thorax  as  long  as  wide,  sides  in  front 
rather  suddenly  convergent,  posteriorly  nearly  parallel,  disc  sparsely  punc- 
tured, densely  covered  with  cupereous  scales;  a  broad,  entire  black  stripe 


112  CUKCULIONID^. 


[LeOonte. 


on  each  side  ot  the  middle.  Elytra  less  elongate  than  in  pulcher,  densely 
scaly,  scales  cupreous;  a  broad,  black  stripe  on  each  side  of  the  suture  much 
confused  at  tip,  lateral  black  stripe  much  more  confused  or  even  absent. 
Scutellum  oval.     Length  .28  inch;  7  mm. 

The  above  notes  give  the  differences  between  this  species  and  the  pre- 
ceding.    It  is  always  less  elongate  and  more  robust. 

Occurs  in  Louisiana. 

Family  YI.     CURCULIOIS'ID^. 

Mentum  varying  in  size,  never  concealing  the  base  of  the  maxillffi,  larger 
in  the  first  sub-families  and  tribes,  smaller  and  oval  in  those  last  placed  in 
this  memoir,  ligula  and  palpi  also  varying  in  size. 

Maxilhe  exposed,  palpi  short,  4-jointed,  rigid. 

Mandibles  varying  according  to  subfamily  and  tribe,  as  mentioned 
below,  but  never  with  an  apical  scar. 

Antennae  inserted  at  the  side  of  the  beak,  varying  in  position,  usually 
geniculate  .(only  feebly  so  in  Ithycerus,  Cleonini,  Piazorhimis,  and  Tachy- 
gonua),  with  the  scape  long,  (short  in  Ithycerus,  Piazorhinits,  and  Tachy- 
gontis);  funiculus  with  from  5-7  joints  ;  club  composed  of  three  joints 
and  a  terminal  appendix,  annulated,  rarely  articulated,  and  then  divided 
into  three  joints ;  surface  usually  entirely  sensitive,  rarely  (Pissodes, 
Lissorhoptus,  Eurlioptus,  Paris,)  with  the  basal  joint  shining. 

Head  gloljose,  eyes  usually  transverse,  sometimes  round  ;  beak  varying 
in  form  and  length,  labrum  wanting. 

Prothorax  varying  in  form,  without  lateral  sutures  separating  the  pro- 
sternum  ;  coxal  cavitii^s  confluent  or  separate,  enclosed  behind. 

Mesosternum  variable  in  width,  side  pieces  differently  divided  according 
to  tribe,  never  attaining  the  coxal  cavity.  Metasternum  variable  in  length, 
side  pieces  sometimes  broad,  sometimes  narrow,  indistinct  only  in  Tracho- 
des. 

Elytra  without  cpipleurte,  but  with  an  acute  fold  on  the  inner  surfiice, 
limiting  a  deep  groove  in  which  the  superior  edge  of  the  abdomen  fits  ; 
pygidium  sometimes  covered,  sometimes  exposed. 

Abdomen  with  five  ventral  segments,  first  and  second  closely  connate  ; 
pygidium  of  male  divided  so  as  to  form  an  anal  segment. 

Front  coxse  rounded,  sometimes  contiguous,  sometimes  distant  ;  middle 
coxaB  rounded,  more  or  less  separated  ;  hind  coxse  oval,  not  prominent, 
more  or  less  distant,  sometimes  attaining  the  elytral  margin,  but  usually 
entirely  enclosed 

Legs  variable  ;  tibise  usually  mucronate,  or  hooked  at  tip;  sometimes 
(especially  tlie  hind  pair)  truncate.  Tarsi  usually  dilated,  with  the  third 
joint  bilobed  and  spongy  beneath,  rarely  narrow.  Claws  varying  accord- 
ing to  tribe,  either  simple  or  toothed,  diverging  and  moveable,  or  fixed  and 
approximate  ;  sometimes  connate,  and  rarely  single  {Brachyhamits,  Mono- 
nyclius,  Barilepton),  entirely  wanting  in  some  foreign  genera. 


LcConte.} 


CUKCULIOXID.^.  IV) 


This  family  is  hy  far  the  largest  in  the  Rhynchophonu  and  therefore  ex 
hibits  a  greater  range  of  variation  in  some  of  the  important  organs  than 
«an  be  seen  in  the  other  families.  Certain  of  the  most  remarkable  diver- 
gences from  the  average  type  ma}^  however,  be  separated  as  sub  tamilies, 
exhibiting  relationships  with  other  families,  without  losing  the  essential 
characters  of  this  famil}^  ;  that  is  to  say,  the  mandibles  without  scar,  the 
tarsi  with  the  third  joint  more  or  less  dilated,  not  spinous  beneath,  the  an- 
tennae with  annulated  or  articulated  club. 

Of  such  sub-families  I  recognize  five  in  our  fauna  ;  all  of  very  limited 
extent,  except  the  Curcidionidas  {genuini). 

They  may  be  separated  as  follows  : 

A.  Condyles  of  mandibles  on  outer  side,  motion  lateral. 

Mandibles  stout,  feebly  emarginate  at  tip, 
with  the  inner  edge  sharp;  gular  pedun- 
cle broad ;  beak  short,  broad  SITONID  J5I . 

Mandibles  without  sharp  inner  edge  ;  appa- 
rently emarginate  at  tip,   with  an  addi- 
tional cusp: 
Antennse  geniculate;  gular  margin  promi- 
nent, peduncle  and  mentum  retracted.  ALOPHID^. 
Antenna?  straight,  gular  margin  not  promi- 
nent; claws  toothed  (p.  130) ITHYCERID^. 

Mandibles  varying  in  form,  usually  8-toothed, 
sometimes  oblique  without  teeth*,  gular 
margin  not  prominent,  peduncle  usuallj" 
long  (p.  121) OURCULIONID^. 

B.  Condyles  of  mandibles  on  upper  side,  motion 

vertical  (p.  321) BALANINID.^. 

Sub-family  I.    SITONID^E. 

The  s])ecies  of  this  sub-family  have  been  heretofore  classed  with  the 
Otiorhynchide  group  Naupacti.  They  differ,  however,  essentially  by 
ftimily  characters  ;  the  mandibles  are  short,  very  stout,  with  the  outer  side 
convex,  roughly  punctured,  and  quite  destitute  of  the  apical  scar  which 
indicates  the  deciduous  cusp  ;  they  are  broadly  emarginate  at  tip,  and 
the  inner  edge  is  acute.  These  insects  are  easily  known  from  other  Curcu- 
li(jnid8e  by  the  mentum  larger,  moi'e  quadrate,  slightly  concave,  and  sup- 
ported on  a  broad,  but  not  long,  gular  peduncle.  The  maxillae  are  exposed 
as  in  the  lower  Otiorhyncluda\  and  as  in  all  Curculionid«,  and  it  therefore 
seems  singular  that  Lacordaire  should  have  classed  them  with  his  Adelog- 
nathes  Cyclophthalmes,  without  noting  the  exception  in  this  respect  whicli 
they  make  in  common  with   Cratopun  and  Elytrodon.\    The  condyle  of 

*  In  Dcsmoris  thej-  are  also  toothed  on  the  outer  edge  as  in  llliynchitidse. 
t  Lacordaire,  Gen.  Col.  vi,  19,  note. 

PROC.   .\MER.  PHILOS.  SOC.   XV.  96.  O 


114  CUliCULlONID^. 


[LeConte. 


the  base  of  the  mandible  is  visible  on  the  outer  side,  the  beak  is  short, 
feroad.  flat,  and  emarginate  at  tip.  The  antennal  grooves  extend  forwards 
quite  to  the  base  of  the  mandibles ;  they  are  short  and  curve  abruptly 
downwards  behind  the  insertion  of  the  antennae,  which  are  geniculate, 
with  elongate  annulated  club  covered  with  sensitive  surface.  The  eyes 
are  small,  rounded,  convex,  and  rather  finely  granulated.  The  front  coxae 
are  contiguous  and  prominent,  the  hind  coxfe  widely  separated  and  extend 
to  the  side  margin  ;  the  tibia?  truncate  at  tip,  without  terminal  hook. 
Tarsi  dilated,  spongy  beneath  ;  claws  slender,  simple,  divergent.  The 
ventral  segments  are  not  very  unequal,  and  the  sutures  are  nearly  straight. 
The  side  pieces  of  the  mesothorax  are  diagonally  divided,  and  the  epimera 
do  not  largely  attain  the  prothorax  ;  those  of  the  metathorax  are  narrow, 
and  suddenly  dilated  in  front. 

SITONES  Sch. 

A  few  species  of  this  well-known  genus  occur  in  our  fauna,  and  as  will 
be  observed  below,  several  of  them  are  also  found  in  Europe.  They  may 
be  tabulated  as  follows  : 

Setae  of  elytral  interspaces  very  obvious 2. 

Setae  of  elytral  interspaces  not,  or  feebly  visible 4. 

2.  Eyes  not  prominent 3. 

Eyes  convex  prominent,  elytra  tesselated 1.  lineellus. 

3.  Elytra  tesselated 2.  californicus. 

Elytra  uniform  dirty  brown 3.  sordidus. 

Elytra  striped  with  pale 4.  vittatus. 

4.  Frontal  groove  deep 5. 

Frontal  groove  fine,  color  uniform  brown 5.  flavescens. 

5.  Elytra  gray  with  broad  white  stripes 6.  tibialis. 

Elytra  gray  without  stripes,  form  narrower 7.  crinitus. 

1.  S.  lineellus  Gyll.,  Sch.  Cure,  ii.  111;  Allard,  Ann.  Ent.  Soc.  Fr.,  1864, 
354;  CurcuUo  lin.,  Bons.,  Cure.  Suec.  ii,  30,  f  18,  et  auctorum  Europ.  ; 
S.  indifferem  Say,  Cure.  10;  ed.  Lee.  i,  269  ;  S.  scissifrons  Say,  ibid. 

Kansas  two  specimens.  I  have  not  copied  the  European  synonymy, 
which  may  be  found  in  Schonherr.  It  varies  greatly  in  size,  the  larger 
specimen  being  7.5  mm.  long. 

2.  S.  californicus  Fahr.,  Sch.  Cure,  vi,  267;  Mannh.,  Bull.  Mosc. 
1843,  ii,  289;  S.  calif ornim  (err.  typ.)  Allard,  Ann,  Ent.  Soc.  Fr.  1804, 
370. 

California  and  Oregon,  abundant.  This  species  also  varies  in  size  from 
f6.3  to  4.2  mm. 

3.  S.  sordidus  Lee,  Pac.  R.  R.  Expl.  and  Surveys,  Entom.  54. 
California,  San  Francisco  and  St.  Diego.    Closely  allied  to  the  preceding 

and  perhaps  only  a  race  of  the  same  species.    The  form  is  a  little  less  elon- 
o-ate,  the  prothorax  more  rounded,  and  the  scales  of  a  uniform  dirty  l)rown. 

4.  S.  vittatus  Lee,  Pac.  R.  R.  Kxpl.  and  Surveys,  Entom. 54. 

San  Francisco,  California.     Also  closely  allied  to  S.  californicus,  but  the 


LeConte.] 


SITONIl)^.  115 


elytra  are  not  tesselate,  but  striped,  and  the  sides  of  the  protliorax  are  more 
rounded,  as  in  S.  sordidus. 

5.  S.  flavescens  Allard,  Ann.  Ent.  Soc.  Fr.,  18G4,  340  ;  Cure.  Jim. 
Marsliam,  Ent.  Brit.,  311  ;  8.  octopunctatus  Fahr.,  Sch.  Cure,  vi,  269.  cum 
mult,  synou.  Europ.  ;  S.  lepiduH  Gyll.,  Sch.  Cure,  ii,  104. 

Atlantic  States,  abundant,  especially  near  the  sea  shore.  Quite  distinct 
from  all  the  preceding  by  the  absence  of  erect  sette,  and  by  the  scales  being 
narrow,  hair-like  and  extremely  small.  It  is  abundant  and  widely  diti'use(!l 
in  Europe,  but  the  American  race  differs  from  the  European  by  the  color 
of  the  scales  being  more  rusty  and  less  gray. 

6.  S.  tibialis  Germ.,  Ins.  Nov.  416  ;  Gyll.,  Sch.  Cure,  ii,  114;  Allard, 
Ann.  Ent.  Soc.  Fr.,  1864,  350;  Cit,rr,.  tib.  Herbst,  Col.  vi,  217,  pi.  75,  f.  5; 
cum  synon.  Europ. ;  Qrypidim  vittatus  Couper,  Can.  Naturalist,  1805,  63. 

Widely  diffused  in  Europe,  where  it  varies  greatly  in  size.  I  have  re- 
ceived several  specimens  from  Canada,  collected  by  Mr.  W.  Couper,  as 
types  of  the  synonym  above  mentioned.  It  has  perhaps  been  intnxluced- 
in  earth  around  roots  of  shrubs  or  trees  ;  though  I  have  one  specimen  from 
Kansas,  one  from  Hudson  Bay  territory,  and  several  from  Dacota. 

7.  S.  crinitus  Gyll.,  Sch.  Cure,  ii,  124  ;  Allard,  Ann.  Ent.  Fr.,  1864, 
356;  Curculio  cr.  Oliv.,  Ent.  83,  383;  pi.  35,  f.  550,  cum  mult.  syn.  Europe. 
^S".  seniculus  Mannh.,  Bull.  Mosc.  1843,  ii,  290. 

Europe,  and  Northern  Asia;  Oregon,  and  California.  I  have  three  spec- 
imens from  Oregon,  referable  to  this  species,  which  is  easily  known  by 
the  very  small  size,  narrow  form,  and  absence  of  distinct  erect  setse  ;  the 
covering  is  squamose,  grayish-white,  obscurely  striped  on  the  protliorax, 
feebly  banded  on  the  elytra.     Length  3.3  mm;  13  inch. 

Sub-Family   II.     ALOPHIDxE. 

The  small  group  of  Curculionidoe,  represented  in  Europe  by  Alophus, 
and  in  our  fauna  by  several  other  genera,  is  sufficiently  distinct  in  its  oral 
structure  to  warrant  its  reception  as  a  sub-family.  The  convex  oval  elytra, 
without  humeral  angles,  and  with  the  posterior  part  strongly  detlexed, 
added  to  the  more  or  less  rounded  prothorax,  give  an  appearance  not  unlike 
certain  Otiorhynchidae;  and  the  prolongation  of  the  antennal  grooves  to 
the  tip  of  the  rostrum,  which  is  rather  stout,  increases  the  resemblance. 

Tliei-e  are,  however,  radical  differences  in  the  mandibles;  which  are  nearly 
flat  externally  and  punctured;  pincer-shaped,  with  a  sharp  edge  at  the  apex, 
which  is  more  or  less  emarginate,  and  without  apical  scar  or  deciduous 
piece.  The  mentum  is  tolerably  large,  trapezoidal  and  flat,  retracted  with 
the  gular  peduncle,  which  is  broad  ;  the  posterior  edge  of  the  latter  is 
prominent,  so  that  the  mouth  appears  hollow;  the  maxillae  are  exposed,  as 
are  also  the  ligula  and  jmlpi. 

The  beak  is  as  long  as  the  prothorax,  rather  stout,  usually  a  little  wider 
at  tip,  with  distinct  apical  wings;  the  tip  is  feebly  emarginate,  and  marked 
also  in  the  first  two  genera  with  a  deep  angulated  impression,  from  whicTi 


116 


CUKCULIONID^. 


[LcConte. 


runs  backward  (except  in  Loplialoplius)  a  medial  groove.  The  ej'es  are 
transverse,  narrowed  below,  and  finelj^  granulated.  The  antennse  are  gen- 
iculated  ;  the  scape  long,  the  funicle  seven-jointed  (the  first  and  second 
joints  longer),  the  club  annulated,  oval,  pointed;  the  antennal  grooves 
usually  long,  well-defined,  narrow,  and  reaching  nearly  to  the  lower  angle 
of  the  eye,  except  in  Lophalophus,  where  they  are  wider  and  shorter.  The 
prothorax  is  distinctly  lobed  behind  the  eyes;  the  front  coxse  are  contigu- 
ous and  prominent.  The  metasternum  is  nearly  as  long  as  the  first  and 
second  ventral  segments,  and  the  side  pieces  are  narrow;  first,  second  and 
fifth  ventral  segments  long;  third  and  fourth  united  equal  to  either  of  the 
others.  Legs  moderate  in  length,  slender;  tibia;  truncate  at  tip,  hind 
pair  not  mucronate  at  the  inner  angle;  tarsi  dilated,  claws  entire,  separate. 

Our  genera  are  as  follows: 

A.  Beak    deeply    channeled ;    tarsi    brush-like 

beneath. 

Elytra  oval,  nearly  smooth  with  faint  stria?....  TRIGLYPHUS, 

Elytra  oblong  oval,  with  distinct  humeri,  scab- 
rous punctured,  with  distinct  rows  of 
punctures PLINTHODES. 

B.  Beak  more  finely  channeled: 

Tarsi  setose  beneath;  elytra  Avith  strong  rows 

of  punctures,    pubescent    mixed    with 

scales ACMiEGENIUS. 

Tarsi  brush  like  beneath,  elytra  with  obsolete 

striae,  pubescence  above  not  mixed  with 

scales TRICHALOPHUS. 

C.  Beak    finely   carinate;   elytra  with  rows  of 

punctures,  squamose,  with  small  inter- 
mixed bristles LOPHALOPHUS. 

D.  Beak  not  carinate;  body  covered  with  scales 

with  rows  of  bristles  on  the  elytra  ;  sec- 
ond joint  of  funiculus  much  shorter 
than  first,  equal  to  the  third LEPIDOPHORUS. 

TRIGLYPHUS  n.  g. 

Beak  as  long  as  the  prothorax,  stout,  subcylindrical;  tumid  under  the  base 
of  the  antenna;,  so  as  to  be  broadly  and  feebly  winged;  medial  groove 
very  deep,  separating  near  the  tip  into  two  diverging  lines,  tip  emarginate; 
sides  with  a  deep  groove  extending  from  the  upper  part  of  the  eye 
ahnost  to  the  antennal  groove;  the  latter  is  deep,  extending  to  the  tip, 
ending  at  the  lower  angle  of  the  eye,  where  it  is  joined  by  an  anteocular 
transverse  impression.  Gular  margin  prominent,  as  in  the  other  genera 
of  this  sub-family;  parallel  grooves  run  backwards  from  the  buccal  fissures 
to  the  base  of  the  beak,  where  between  them  is  seen  a  short  groove,  wider 
behind.     Antenna?  rather  slender,  funicle  seven-jointed,  joints  one  to  three 


LeConte.] 


ALOPHID.E.  117 


gradually  shorter,  four  to  six  equal,  ^leventh  -wider  but  only  a  little  longer, 
club  oval,  pointed,  not  as  long  as  the  three  preceding  united. 

Prothorax  rather  small,  sides  broadly  and  feebly  lobed  behind  the  eyes, 
narrowed  before  and  behind,  not  wider  than  long,  truncate  at  tip  and  base; 
coarsely  granulate  and  punctured;  transversely  impressed  beneath,  near 
the  tip. 

Elytra  oval  convex,  more  than  twice  as  wide  as  the  prothorax  in  9. 
elongate  oval  and  one-half  wider  than  the  prothorax  in  (^,  with  nine  rows 
of  shallow  punctures,  interspaces  rugose  and  sparsely  punctured,  nearly 
glabrous,  with  a  few  scattered  scales  in  the  larger  punctures,  humeri 
rounded,  scutellum  very  small,  pubescent. 

Legs  moderately  long  and  slender,  thighs  somewhat  clubbed,  and  sinuate 
towards  the  tip;  front  tibiae  subsinuate  on  the  inner  side,  curved  inwards 
and  mucronate  at  tip;  the  other  tibiae  are  expanded  somewhat  at  tip,  trun- 
cate and  feebly  mucronate.     Tarsi  shorter  than  the  tibiae,  claws  separate. 

T.  ater,  n.  sp. 

Black,  nearly  opaque  (cJ*),  or  dull  ( 9  )>  beak  and  head  strongly  not 
densely  punctured;  prothorax  punctured  towards  the  middle,  coarsely 
granose  at  the  sides,  with  a  narrow  sometimes  indistinct  dorsal  line;  elytra 
rugose  and  punctulate,  with  rows  of  larger  punctures  in  which  are  scat- 
tered pale  scales;  beneath  with  small  scattered  patches  of  ochreous  scales. 
Length  12 — 14  mm.;  .45 — .6  inch. 

California:  Dr.  Horn  and  Mr.  Ci-otch.  The  patches  of  scales  beneath 
are  on  the  prosternum  in  front  of  the  coxae;  the  outer  angle  of  the  metas- 
ternuni,  and  at  the  sides  of  the  ventral  sutures.  This  singular  insect  has 
some  resemblance  in  appearance  to  Molytes,  but  is  moi'e  slender,  and  the 
characters  totally  unlike.  The  elytra  are  more  strongly  declivous  behind 
than  in  the  other  genera,  being  in  fact  perpendicular  towards  the  tip. 

PLINTHODES  n.  g. 

Beak  as  in  Triglyphus,  except  that  the  apical  wings  are  a  little  wider, 
and  the  lateral  grooves  not  so  deep,  there  is  also  a  vague  groove  between 
the  medial  and  lateral  grooves.  Antennae  with  the  second  joint  of  the 
funicle  longer  than  the  first,  and  together  equal  to  the  four  followingunited: 
three  to  seven  equal,  the  seventh  a  little  wider,  club  oval  pointed,  as  long 
as  the  three  preceding.  Prothorax  not  narrowed  behind,  rounded  and 
narrowed  on  the  sides  in  front,  postocular  lobes  broad,  feeble;  transversely 
impressed  beneath,  and  at  the  sides  near  the  tip. 

Elytra  oblong-oval,  wider  in  9  than  in  (^,  nearly  truncate  at  base, 
slightly  impressed  on  the  sides  behind  the  humeri,  which  are  rounded  but 
distinct,  tip  gradually  declivous  (but  not  perpendicular);  very  densely 
scabrous,  with  rows  of  large  deep  punctures;  pubescence  fine,  sparse,  with 
small  scattered  narrow  pale  scales,  and  two  small  spots  on  each  elytron; 
scutellum  clothed  with  ochreous  scale-like  hairs.     Legs  as  in  Triglyphus. 

The  beak  is  very  densely  punctured;  the  prothorax  the  same,  mixed  with 
granules  at  the  sides;  the   under  surface   is  pubescent,  densely  but  not 


M8  CURCULIONID^. 


[LeConte. 


seabrons  punctured.  The  general  aspect  is  that  of  certain  Hylobius.  The 
last  ventral  segment  in  both  sexes  is  broadly  channeled,  and  with  a  shallow 
impression  each  side;  faint  traces  of  similar  impressions  may  be  seen  in 
Triglyphus. 

The  only  species  known  to  me  is 

P.  taeniatus  Lee,  Pac.  Rw.  Expl.  and  Surv.  Insects,  55,  {Hylobius?) 

Brownish  black,  thinly  clothed  with  fine  brown  pubescence,  opaque, 
dtensely  scabrous  punctured;  thorax  granose  at  the  sides,  feebly  channeled, 
elytra  with  rows  of  deep  oblong  punctures,  scutelluni,  two  small  spots  on 
tjie  fifth  interspace,  and  a  small  sub-humeral  spot  pale  yellow.  Length 
13  mm.;  .55  inch. 

Oregon  and  Vancouver  Island. 

ACMJEO-ENIUS  n.  g. 

The  beak  is  rather  shorter  and  stouter  than  in  the  preceding  genera, 
flat  above,  with  a  medial  channel;  the  lateral  grooves  are  represented  by  a 
sl^ort  impression,  and  immediately  below  is  a  shorter  one,  the  two  together 
occupying  the  triangular  space  in  front  of  the  eyes;  theantennal  grooves 
are  very  strong  and  deep,  the  apical  wings  moderate;  the  tip  is  emarginate 
Imt  the  angulated  line  is  replaced  by  a  broad  curved  impression.  The 
antennae  are  stouter,  first  and  second  joints  of  the  funiculus  equal,  each 
nearly  twice  as  long  as  the  following,  which  are  equal  and  about  as  long 
as  wide,  with  long  bristles,  seventh  wider,  club  oval  ])ointed. 

Pi-othorax  wider  than  long,  narrowed  in  front  but  not  behind,  very 
densely  punctured  not  granose,  impressed  beneath  as  usual  ;  postocular 
lebes  feeble.  Elytra  not  much  Avider  than  the  prothorax,  elongate  oval, 
strongly  declivous  behind,  humeri  not  distinct;  densely  punctured,  thinly 
clothed  with  mixed  scales  and  hairs,  with  rows  of  deep  oblong  punctures. 

Legs  as  in  the  preceding  genera,  except  that  all  the  tibise  are  more 
expanded  at  the  tip,  and  the  tarsi,  instead  of  being  brush-like  beneath,  are 
concave  and  thinly  clothed  with  long  bristles. 

A.  hylobinus,  n.  sp. 

Dull  black,  with  a  brown  tinge,  produced  by  thinly  dispersed  hairs  and 
small  scales;  head  and  prothorax  very  densely  coarsely  punctured,  elytra 
more  finely  punctured,  with  rows  of  large  oblong  punctures:  beneath,  and 
legs  densely  punctured.     Length  11  mm.;  .43  inch. 

Oregon,  two  specimens;  the  last  ventral  is  obsoletely  impressed  along 
the  median  line. 

TRIOHALOPHUS  n.  g. 

This  genus  contains  several  species  resembling  the  European  Alophus, 
but  of  larger  size,  with  the  rows  of  elytral  punctures  almost  or  quite  oblit- 
erated ;  the  upper  surface  is  clothed  with  hairs,  not  at  all  squamose, 
and  becoming  so  only  on  the  sides  of  the  sternal  pieces;  there  is  one  lateral 
groove  on  the  beak,  and  the  medial  groove  is  stronger  than  in  Alophus; 


LeConte.] 


ALOPIIID^.  119 


the  second  joint  of  the  funiculus  is  a  little  longer  than  the  first,  as  in 
Alophus,  and  in  all  other  respects  it  agrees  with  that  genus,*  The  head  and 
prothorax  are  densely  punctured,  the  latter  usually  channeled  and  carinate,, 
the  anterior  transverse  impression  strong,  sometimes  extending  on  the  dor- 
sal surface;  the  elytra  are  densely  but  more  finely  punctured;  the  tarsi  are 
broad  and  scopiferous  as  usual. 

The  species  may  be  thus  distinguished : 
Pronotum  strongly  transversely  impressed  near  the  tip; 
dorsal  channel  strong  in  front,  carinate  behind: 

Pronotum  less  coarsely  punctured 1.  didymus. 

Pronotum  more  coarsely  punctured 2.  constrictus. 

Pronotum  scarcely  impressed  near  the  tip: 
Lateral  groove  of  rostrum  distinct;  pronotum  carinate 
about  the  middle : 

Elytral  strife  nearl}' obliterated 3.  alternatus. 

Elytral  striae  distinct 4.  seriatus. 

Lateral  groove  of  rostrum  triangular  feeble;  pronotum 
neither  channeled  nor  carinate;  elytral   striae 

wanting 5.  simplex. 

The  bibliography  and  localities  as  follows: 

1.  T.  didymus  (Lee),  Proc.  Ac.  Nat.  Sc.  Phila.  vii.,  20,  {Alophus;) 
Pacific  R.  W.  Expl.  and  Surv.  Insects,  p.  54. 
Oregon. 

3.  T.  constrictus  (Lee),  ibid.  {Alophus);  ibid.j;  A.alteniahtsX'^l-Ann., 
Bull.  Mosc.  1843,  290;  ib.  1853,  244. 

Alaska  and  Washington  Territory.  This  is  very  similar  to  the  preceding 
and  may  with  larger  series  of  specimens  prove  only  a  race  thereof.  The 
prothorax,  however,  seems  more  coarsely  punctured,  and  consequently  sub- 
serrate  at  the  sides. 

3.  T.  alternatus.  Hypsonotus  altern.  Say,  Cure,  10;  ed.  Lee.  i.,  271  ; 
Alophus  altern.  Boh.,  Schonk.  Cure,  ii.,  28G. 

Lake  Superior. 

4.  T.  seriatus  (Mann.),  Bull.  Mosc.  1853,  245,  {Alophus). 
Alaska. 

5.  T.  simplex,  n.  sp. 

Brownish  black,  clothed  with  pale  brown  prostrate  pubescence ;  head, 
beak  and  prothorax  densely  not  coarsely  punctured,  the  latter  with  a  stripe 
of  denser  pubescence  each  side,  elytra  more  finely  densely  punctured. 
Length,  8.5  mm.;  .32  inch. 

Manitoba  and  Hudson  Bay  Territory.  Smaller  than  the  other  species, 
and  easily  known  by  the  lateral  groove  of  the  beak  being  shorter,  broader, 
triangular  and  feebly  impressed.  The  outer  two  striae  of  the  elytra  are 
distinct,  the  others  obliterated;  the  pubescence  becomes  squamiform  on  the 
sides  of  the  prothorax  beneath,  and  on  the  side  pieces  of  the  meso-  and 
metasternum,  as  in  the  other  species  of  the  genus. 

*In  Alophus  the  lateral  groove  is  wanting. 


120  CURCULIONID.15.  [LeConte. 

LOPHALOPHUS  u.  g. 

In  this  genus  the  beak  is  parallel,  flat  above,  not  as  stout  as  in  the  other 
genera,  and  the  apical  wings  are  not  developed;  the  medial  groove  is  re- 
pliiced  by  a  fine  carina,  and  the  lateral  grooves  are  wanting  ;  the  antenna! 
grooves  are  short,  oblique  as  usual,  but  becoming  wide  and  obliterated  be- 
hind; the  grooves  on  the  under  surface  are  obsolete.  The  antennte  are  as 
in  Alophus,  but  rather  thicker;  the  second  joint  of  the  funiculus,  as  usual, 
a  little  longer  than  the  first.  The  eyes  are  scarcely  ti'ansverse,  but  dis- 
tinctly angulated  below;  the  postocular  lobes  are  obsolete,  and  the  pro- 
sternal  transverse  impression  scarcely  extends  on  the  sides.  The  elytra  and 
head  are  finely  punctured,  and  the  former  has  distinct  rows  of  larger  punc- 
tures; the  prothorax  is  coarsely  and  densely  punctured,  not  channeled,  but 
with  a  small,  dorsal  smooth  space.     Under  surface  pubescent. 

The  only  species  known  to  me  is 

L.  inquinatus.  Liophloeus  inq.  Mann.,  Bull.  Mosc.  1852,  351. 

Alaska ;  two  specimens  from  Baron  Chaudoir.  Difters  from  Liophlmus 
by  the  mandibles  being  without  apical  scar,  by  the  maxillae  not  covered  by 
the  mentum,  and  by  the  ungues  being  separate,  not  connate  at  base. 
Length  5.5  mm.;  .32  inch. 

L]3PIDOPHORUS  Kirby. 

This  genus  is  easily  distinguished  from  the  others  of  the  sub-family  by 
the  beak  being  a  little  broader  at  the  tip,  with  feeble  wings,  somewhat  as  in 
Alophxii;  otherwise,  it  is  cylindrical,  and  not  carinate  nor  grooved;  the  an- 
tennal  grooves  are  broad  and  short,  directed  towards  the  eyes,  which  are 
scared}'  transverse,  and  distinctly  angulated  below.  The  scape  of  the  an- 
tenna? is  longer  than  in  the  other  genera,  extending  across  the  eyes;  the  first 
joint  of  tlie  funiculus  is  as  long  as  the  three  following  united;  2-7  equal  in 
length,  gradually  a  little  thicker;  club  oval,  pointed.  Prothorax  not  lobed 
in  front,  only  obsoletely  impressed  at  the  sides  near  the  tip;  rounded  on 
the  sides  in  front,  not  narrowed  behind,  scarcely  as  wide  as  long.  Elytra 
elongate  oval,  humeri  rounded:  strioe  well  marked,  interspaces  flat.  Front 
and  middle  tibie  slightly  curved  and  mucronate  at  tip;  the  hind  pair 
scarcely  mucronate,  truncate  at  tip. 

1.  L.  linsaticollis  Kirby,  Faun.  Bor.  Am.  iv.  201  ;  Schon.  Cure,  vi, 
2d,  256;  Maun.  Bull.  Mosc.  1853,  243. 

Two  specimens  from  Alaska,  not  very  well  preserved.  The  body  is 
densely  clothed  with  scales  and  small  bristles;  the  latter  arranged  in  series 
on  the  elytra.     Length  4.5  mm.;  .18  inch. 

This  is  perhaps  Phytonoinu'i  trioittatus  Say,  Cure.  p.  12;  ed.  Lee.  i,  273; 
but  the  description  is  not  very  definite. 

Sub  Family  IIL     ITHYCERIDJE. 

This  sub-family  is  represented  by  a  single  species,  and  is  well  dis- 
tinguished from  all  other  Curculionidde  by  the  following  assemblage  of 
characters. 


LeConte.] 


ITHYCEKID^.  121 


Mandibles  prominent,  not  very  stout,  emarginate  at  tip,  Avltli  an  in- 
ferior cusp;  mentum  large,  quadrate,  supported  on  a  broad  and  short 
gular  peduncle;  ligula  and  labial  pali)i  small.  Beak  short,  rather  broad, 
one-half  longer  than  the  head,  antennal  grooves  wanting  ;  eyes  small, 
rounded,  convex.  Antennae  not  at  all  geniculate.  First  joint  scarcely 
longer  than  the  second  ;  third  longer  than  the  second  ;  4-8  gradually 
a  little  shorter  and  broader;  club  small,  oval  pointed,  annulated.  Side 
pieces  of  mesosternum  diagonally  divided  ;  epimera  not  attaining  the 
prothorax ;  those  of  metasternum  moderately  Avide,  slightly  dilated  in 
front.  Ventral  segments  nearly  equal  in  length;  sutures  straight,  well- 
marked.  Front  coxiB  contiguous,  middle  coxse  narrowly  separated ; 
hind  coxjB  transverse,  narrow,  attaining  the  side  margin.  Legs 
moderate  in  length,  slender,  tibiae  truncate  at  tip,  with  two  small  termi- 
nal spurs;  articular  surface  terminal,  well-defined.  Tarsi  broad,  spongy, 
pubescent  beneath;  third  joint  dee[il3'  bilobcd;  claws  divergent,  armed  at 
the  middle  with  a  small  acute  tooth. 

Inner  surface  of  elytra  with  the  usual  fold,  commencing  near  the  posthu- 
meral  sinuosity,  running  parallel  to  the  margin  as  far  back  as  the  beginning 
of  the  apical  curvature;  apical  region  very  finely  scabrous,  with  a  narrow 
marginal  band  of  very  fine  golden  pubescence. 

In  this  sub-family  th©  Curculionid*  make  the  nearest  approach  to  the 
Rhynchitidae. 

ITHYOERUS  Sch. 

1.  I.  noveboracsnsis  (Forster),  Nov.  Spec.  Ins.  35,  (Gurculio);  (Oliv.) 
Enc.  Meth.  v,  553;  (Gmelin),  Syst.  Nat.  1798;  Horn,  Proc.  Am.  Phil.  Soc. 
1872,  447;  Rhynchiies  ctircuUonoideK  Herbsl,  Kafer,  vii,  136;  pi.  105,  f.  1; 
IthyceruH  cure.  Gyll.,  Sch.  Cure,  i,  246;  Cure,  punetahilus  Fabr.,  Ent.  Syst. 
i,  187;  Oliv.,  83,  402,  pi.  10,  f.  119;  Enc.  Meth.  v,  5'Sd;  Paehyrhynchus  Schon- 
lierri  Kirby,  Faun.  Bor.  Am.  iv,  271. 

Canada  to  Texas;  sometimes  quite  injurious  to  fruit  trees  by  gnawing  oft 
tlie  tender  buds,  as  is  observed  by  C.  V.  Riley  (Third  Report  Ins.  Inj. 
Missouri,  p.  57).  The  anal  segment  of  the  (^,  is  very  convex  and  protu- 
berant, so  as  to  be  visible  from  beneath,  simulating  a  ventral  segment.  We 
owe  the  first  accurate  observation  and  explanation  of  this  fact  to  Dr.  Horn. 
The  pygidium  is  deeply  grooved  in  both  sexes,  and  projects  beyond  the 
elytra. 

Sub  Family  IV.     CUliCLTLIOXID^   (genuini). 

The  species  of  this  sub-family  may  be  recognized  by  the  mandibles  being 
rarely  emarginate  at  tip,  but  either  bi-emarginate,  with  three  apical  cusps, 
or  oblique,  with  three  cusps  on  the  inner  side,  which  sometimes  become 
effaced,  or  obsolete.  In  the  first  tribes  the  inferior  cusp  is  also  smaller,  and 
less  prominent,  but  it  speedily  becomes  more  developed,  and  it  is  b ,-  the 
final  dominance  of  that  cusp,  with  the  edge  of  the  luandible  which  corres- 
ponds to  it,  that  the  oblique  form  with  the  teeth  on  the  inner  edga,  is  as- 
sumed; and  a  still  greater  prominence  of  this  inferior  edge  and  cusp  results 
in  the  oblique  or  flattened  form  of  mandible  seen  in  certain  Cryijtorhyn- 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  P 


122  CURCULIONID^. 


I  LeConte. 


chini  and  Barini.  From  them  the  transition  is  easy  to  the  next  sub-family 
Balaninida;  in  wliich  the  mandibles  are  still  more  depressed,  and  the  con- 
dyle instead  of  being  on  the  outer  aide  comes  to  the  upper  surface,  so  that 
the  movement  is  vertical,  instead  of  horizontal  as  in  all  other  Coleoptera. 

It  must  also  be  observed  that  in  cei'tain  Phytonomini  the  interior  cusp 
becomes  very  small  or  obsolete,  so  that  the  mandibles  seem  to  be  only 
emarginate  at  tip.  They  thus  approach  the  two  preceding  sub-families, 
but  are  readily  known  by  not  possessing  tlie  peculiar  characters  which  dis- 
tinguish each  of  them.  The  beak  is  not  short  and  flat,  and  the  eyes  are 
not  round,  as  in  Sitonidse;  the  gular  margin  is  not  prominent  as  in  Alophi- 
dfe;  and  the  antennae  are  not  straight,  nor  the  elaws  appendiculate  as  in 
Ithyceridffi. 

After  eliminating  the  tj-pes  which  seem  of  sufficient  importance  to  be  re- 
garded as  h  iving  family  or  sub-family  value,  there  still  remains  this  vast 
complex,  which  presents  no  difficulty  in  circumscription.  It  nevertheless 
comprehends  so  many  diversified  combinations  and  representations  of  a 
few  simple  characters,  and  under  each  so  many  variations  in  a  few  definite 
directions,  that  much  labor,  and  very  careful  observation  is  necessary  to 
devise  a  scheme  which  will  enable  the  genera  to  be  naturally  grouped,  and 
easily  recognized. 

I  believe  that  the  following  table  will  be  found  sufficient  for  the  proper 
elucidation  of  our  limited  fauna,  and  perhaps  with  a  certain  amount  of  ex- 
pansion and  modification,  may  serve  as  a  basis  for  a  general  arrangement  of 
the  sub-family. 

Fnmt  coxaj  contiguous  [exceptinPmotZes  (p.  142), 

Phycocates  (p.  189),  and  Miarus  (p.  221)] 2. 

Front  coxae  distant  [except  in  Notolomua  (p.  222), 

and  Conotrachelus  (p.  225)] 14. 

3.    Ungues  simple;  pygidium  not  exposed 3. 

"        appendiculate,  toothed  or  cleft,  [except  in 

some  Magdalis  (p.  192),  and  Cionini  (p   219)] 9. 

3.  Eyes  not  contiguous  beneath. 4. 

"     contiguous  beneath,  (p.  320) HORMOPlNI. 

4.  Mandibles  biemarginate,  and  3-toothed  at  tip 5. 

"  usually  emarginate,  2-toothed  at  tip, 
ai-ticular  surface  of  at  least  the  hind  tibiae  termi- 
nal (p.  123) PHYTONO.tllXI. 

5.  Tibiae  fossorial  (p.  137) E.^lPHYASTlNi. 

"      not  fossorial 6. 

6.  Side  pieces  of  metathorax  distinct 7. 

"  indistinct  (p.   190)  TRA€HODIM. 

7.  Lateral  angles  of  first  ventral  segment  not  visible..  8. 

"  "  uncovered  (p.  144)..  ci^EOKl^l. 

7.   Mentuni  transverse,  labial  palpi  large  (p.  137) hyi<obiixi. 

smaller,         "         "      small  (p.  160) i:kiriii.\I!VI. 

9.    Ventral  sutures  straight lO. 

Ventral  sutures  angulated  at  the  sides 13. 


LeCoate.] 


rHYTONOMTNI. 


123 


10.  Protliorax  contiguous  to  the  elytra 11, 

Prothorax  pedunculate  (p.  191) OTII>0€EPHAI.ini. 

11.  Hind  angles  of  prothorax  acute  (p.  193) MAliUAl^IIVl. 

"         "       "  "  rectangular    or 

rounded  (p.  193) ANTHONOKINI. 

12.  Funicle  six  or  seven-jointed 13. 

"      five -jointed  (p.  219) €loNlNl. 

13.  Scape  extending  upon  the  eyes  (p.  210) ]*R10^^0MKRi:9ri. 

"    not  extending  upon  the  eyes  (p.  211).  TYCmiBri. 

14.  Ventral  sutures  more  or  less  curved 14. 

entirely  straight  (p.  233)....  l,^MOSAC€lliri. 

15.  Humeri  of  elytra  truncated  by  side  pieces  of 

mesothorax  (p.  284)., barini. 

Humeri  not  truncated 16. 

16.  Beak  received  in  or  upon  the  breast 17. 

Beak  not  received  in   or  upon  the  breast; 

prosternum  very  long  in  front  of  the  coxae, 

which  are  nearly  contiguous  (p.  221) ]>£R£l.OMlIiri. 

17.  Eyes  more  or  less  covei'ed  in  repose,  except 

in  the  group  PhytoMi  (p.  280) 18. 

Eyes  not  covered 19. 

18.  Body  oval,  pygidium  covered  (p.  223) CRYPTORHYKOllilifi. 

"      broad,  pygidium  exposed  (p.  267) CEnoRHYNeillliri. 

19.  Antennae  geniculate,  eyes  very  large  (p. 259)  ZWOI'INI. 

"         straight  (p.  265) TACUYOOBTINI. 

Tiibe  I.   PHYTONOMINI. 

Among  the  tribes  in  which  the  ungues  are  simple  and  separate,  and  the 
pygidium  not  exposed,  the  present  one  may  be  distinguished  by  the  form 
of  the  mandibles,  and  by  the  hind  tibiae  being  truncate  at  tip,  with  the  ar- 
ticular surface  terminal,  and  though  so^newhat  oblique,  not  lateral  as  in 
Hylobiini.  It  follows  from  this  that  the  terminal  spine  representing  the 
spur  is  situated  on  the  inner  side  of  the  apical  surface. 

The  mentum  is  oblong,  and  supported  on  a  guiar  peduncle  which  is  not 
longer  than  wide,  and  emarginate.  The  ligula  and  labial  palpi  are  less  de- 
veloped than  in  Hylobiini;  the  maxilla?  are  entirely  exposed.  The  mandi- 
bles are  short,  very  stout,  pincer-shaped,  emarginate  at  tip,  (except  in  Phy- 
tonomus  opimus)  convex  and  sparsely  sculptured  on  the  outer  surface, 
the  basal  condyle  large.  Antennae  inserted  near  the  tip  of  the  beak,  geni- 
culate; scape  long,  club  elongate-oval,  pointed,  annulated,  covered  with 
sensitive  surface;  funiculus  7-jointed;  the  seventh  joint  in  some  species  con- 
nected with  the  club.  Beak  moderately  long,  not  slender,  antennal  grooves 
extending  nearly  to  the  tip,  deep,  directed  towards  the  lower  part  of  the 
eyes,  which  are  more  or  less  transverse  and  narrowed  beneath.  Front  coxae 
round;  contiguous;  middle  coxae  round,  narrowly  separated,    entirely  en 


124  CURCULIONID^. 


[IjeConte. 


closed  by  tlie  meso-  and  metasternum.  Side  pieces  of  mesosternum  diagon- 
ally divided;  of  the  metasternum,  narrow  dilated  in  front,  the  outer  angle 
making  a  sinuosity  in  the  side  margin  of  the  elytra.  Ventral  segments 
unequal;  first  and  second  longer;  third  and  fourth  shorter;  fifth  as  long  as 
the  two  preceding  united;  sutures  straight;  the  lateral  angles  of  the  first 
segment  are  covered  by  the  elytra,  and  the  intercoxal  process  is  broad. 

The  proportions  of  the  ventral  segments  permit  the  recognition  of  two 
groups. 

A.  Ventral  segments  not  very  unequal;  postocular  lobes 

of  prothorax  obsolete Phytouomi. 

Articular  surface  of  hind   tibia3   well-defined,  ter- 
minal  PHYTONOMUS. 

Articular  surface  of  hind  tibise  ill-defined,  oblique...  LEPYRUS. 

B.  Ventral  segments  very  unequal;  third  and  fourth 

short,  united  equal  to  one  of  the  others l.lstro<leri. 

Tibite  strongly  mucronate;  second  joint  of  funiculus 

much  longer  than  the  first LISTRONOTUS. 

Tibia?  feebly  mucronate;  first  joint  of  funiculus  as 

long  as,  or  but  little  longer  than  tlie  second MACROPS. 

PHYTONOMUS  Sch. 

A.  Beak  short  and  thick,  1st  and  3d  joints  of  funicu- 

lus equal , 1.  opimus. 

B.  Beak  longer  and  more  slender,  1st  joint  of  funicu- 

lus stouter  and  frequently  longer  than  second: 

Elytra  much  wider  than  base  of  prothorax 2. 

"     scarcely  "            '                     "          2.  elongatus. 

2.  Prothorax  pubescent  without  scales 3. 

"         scaly  with  long  hairs  intermixed 3.  setigerus. 

"         scaly  without  hairs,  scales  very  small 5. 

3.  Pubescence  coarse 5.  pubicollis. 

"  very  fine 4. 

4.  Pubescence  mottled,   elytra  tesselated 6.  Castor. 

"  pale-green,  nearly  uniform 7.  nigrirostris. 

5.  Scales  golden -brown,  sides  of  prothorax  rounded..  4.  comptus. 
Scales  dirty-gray,  sides  of  prothorax  nearlj^  straight    8.  quadricollis. 

1.  P.  opimus,  n.  sp. 

Robust,  black,  densely  finely  punctured,  and  covered  with  gray  scales, 
having  a  metallic  lustre  ;  sparsely  and  indistinctly  pubescent.  Beak  one- 
half  longer  than  the  head,  stout,  curved,  antennal  grooves  deep,  suddenly 
flexed  downwards  ;  there  is  a  small  oblique  groove  each  side  near  tlie  tip, 
a  short  nasal  furrow,  and  another  between  the  eyes  which  are  transverse. 
The  funiculus  of  the  antennae  has  the  first  joint  nearlj'  as  long  as  the  second, 
which  is  nearly  equal  to  the  three  folloAving  united.  Pi-othorax  sub- 
quadrate,  a  little  wider  than  long,  rounded  on  the  sides  in  front,  and 
feebly  constricted  ;  disc  very  obsoletely  channeled.      Elytra  much  wider 


LeConte.]  PHYTONOMTNI.  125 

than  the  prothorax,  one-half  -wider  than  long,  convex,  humeri  prominent, 
stritt!  with  large  sliallow  punctures,  interspaces  somewhat  convex,  first, 
third  and  fifth  a  little  more  prominent.  Tibite  not  mucronate,  not  even 
the  front  pair.     Length  7.6  mm.  ;  .3  inch. 

One  specimen  from  Pennsylvania  given  me  by  Dr.  Melsheimer,  under 
the  name  adopted  ;  another  from  Canada.  The  mandibles  are  oblique, 
and  not  emarginate  at  tip. 

I  should  refer  this  species  to  CephuMges,  but  the  eyes  are  not  approxi- 
mate above  as  described  in  that  genus.  It  belongs,  however,  to  the  group 
Bonus  Capiomont,  and  seems  related  to  the  Canarian  P.  irroratus  Wollas- 
ton.     I  am  not  at  all  certain  that  it  properly  belongs  to  our  fauna. 

2.  P.  elong-atus  Gyll  ,  Sch.  Cure,  ii,  374;  Schiodte,  Berl.  Ent.  Zeitsch. 
1859,  14t,  Cap.  1.  c.  1868,  193  ;  CarcuUo  eloncj.  Paykull,  Fauna  Suec.  iii, 
236. 

One  specimen  from  Greenland,  kindly  sent  me  by  Mr.  Chr.  Drewsen. 
Belongs  to  Capiomont's  sixth  group  Pliytonomus. 

3.  P.  setigerus,  n.  sp. 

Moderately  elongate,  black,  densely  clothed  with  yellow-brown  scales, 
and  long  pale  hairs,  which  on  the  elytra  are  arranged  in  rows  ;  prothorax 
strongly  rounded  on  the  sides,  widest  at  the  middle,  with  two  broad  darker 
discoidal  stripes,  and  a  spot  each  side  in  front  ;  elytra  with  the  alternate 
spaces  tesselated  with  dark-brown,  and  frequently  with  a  large  quadrate 
common  dark  spot  at  the  base  ;  first  joint  of  funiculus  of  antennye  one-half 
longer  than  the  second.     Length  5.5  mm.  ;  .22  inch. 

Kansas,  two  specimens.  Larger  and  stouter  than  the  next,  and  easily 
known  by  the  hairs  intermixed  with  the  scales,  and  by  the  funiculus  of  the 
antennse  longer  and  more  slender,  with  the  first  joint  conspicuouslj'  longer 
than  the  second. 

This  species  is  allied  to  the  Euroi)ean  P.  Pollux,  but  the  prothorax  is 
wider  in  front  and  more  rounded  on  the  sides,  and  the  setas  of  the  elytra 
are  much  longer  and  more  obvious. 

4.  P.  comptus  Say,  Cure.  12  ;  ed.  Lee.  i,  274  ;  Gyll.,  Sch.  Cure,  ii, 
384;  P.  diver ausGyW.,  ibid,  ii,  371;  Cap.,  Ann.  Ent.  Fr.  1868,  163. 

Missouri  and  Canada.  Has  been  observed  by  Mr.  Riley  to  form  a  cocoon 
similar  to  that  of  European  species.  Belongs  to  Capiomont's  third  group 
Erirhinomorphus. 

5.  P.  pubicollis,  n.  sp. 

Less  elongate,  blackish,  head  and  i)rothorax  pubescent,  with  gray  hairs, 
more  coarse  on  the  latter;  front  narrow,  with  a  deep  fovea  behind  the 
eyes.  Prothorax  not  longer  than  wide,  a  little  wider  at  the  middle, 
narrower  in  front  than  at  base,  rounded  on  the  sides;  strongly  and  densely 
punctured,  indistinctly  trivittatc.  Elytra  one-third  wider  than  the  pro- 
thorax, oval,  truncate  at  base,  humeri  rounded  ;  striae  punctured,  clothed 
withi  depressed  hair-like  scales,  and  a  very  few  intermixed  short  hairs  ; 
gray,  tesselated  with  brown  and  Ijlack  ;  a  quadrate  dark  spot  at  the  base, 


126  cuECULio:s^iD^. 


[LeConte. 


extending  to  the  second  stria,  as  in  P.  setigeribs,  and  the  European  P. 
Pollux.  Antennae  piceous,  first  joint  of  funiculus  but  little  longer  than  the 
second.     Tibiae  and  tarsi  testaceous.     Length. 5  mm. ;  20  inch. 

Vancouver  Island,  one  specimen.  Very  like  several  European  species, 
but  easily  distinguished  by  the  coarse  pubescence  of  the  prothorax  unmixed 
with  scales.     The  last  joint  of  the  funiculus  is  closely  attached  to  the  club. 

6.  P.  Castor,  n.  sp. 

More  elongate,  blackish,  head  and  prothorax  very  finely  pubescent  with 
gray  hair;  front  wider,  with  a  fovea  behind  the  eyes.  Prothorax  a  little 
longer  than  wide,  a  little  wider  at  the  middle,  narrower  in  front  than  at 
base,  rounded  on  the  sides,  densely  punctured,  trivittate  with  white. 
Elytra  one-third  wider  than  the  prothorax,  oblong  oval,  humeri  rounded, 
striae  punctured  ;  clothed  with  very  small  scales  so  deepl)^  bifurcated  as  to 
resemble  fine  hairs  ;  also  with  rows  of  very  short  pale  setae  ;  gray,  varied 
with  brown,  and  tesselated  with  small  black  spots  ;  the  darker  quadrate 
basal  spot  is  not  very  distinct.  Antennae  with  the  first  joint  of  the  funi- 
culus about  one-third  longer  than  the  second.  Legs  blackish.  Length 
5  mm. ;  20  inch. 

Canada,  one  specimen.  More  elongate  than  the  European  P.  Pollux, 
and  easily  distinguished  by  the  finelj^  pubescent  prothorax  and  the  rows  of 
short  setae  of  the  elytra.  The  last  joint  of  the  funiculus  is  quite  separate 
from  the  club.  The  scales  of  the  elytra  are  very  small  and  quite  peculiar 
in  form,  giving  the  appearance  of  very  fine  hairs  arranged  by  pairs. 

7.  P.  nigrirostris  Gyll.,Sch.  Cure,  ii,  393;  Cap.,  Ann.  Ent.  Fr.  1868, 
227;  Ehi/nc/ueims  nigr.  Fabr.,  Syst.  El.  ii,  428,  &c.,  &c. 

This  common  European  species  occurs  in  Canada  and  in  Massachusetts. 
It  belongs  to  Capiomont's  seventh  group  Phytonomidim,  in  which  the 
first  joint  of  the  funiculus  is  much  longer  than  the  second,  which  is  not 
longer  than  the  third. 

8.  P.  quadricoUis,  n.  sp. 

Blackish-brown,  covered  with  a  very  dense  coat  of  dirt  colored  small 
rounded  scales,  mixed  with  a  few  very  short  sub-erect  hairs,  which  form 
rows  upon  the  elytra.  Beak  as  long  as  the  prothorax,  cylindrical,  about 
three  times  as  long  as  wide,  glabrous,  and  nearly  smooth  at  tip,  which  is 
reddish -brown;  feebly  carinate;  frontal  fovea  small,  distinct.  Eyes  oval 
transverse,  not  narrowed  beneath,  not  prominent.  Prothorax  nearly 
square,  very  slightly  narrowed  in  front,  sides  scarcely  rounded,  base  feebly 
rounded;  sculpture  concealed  by  the  scales.  Elytra  more  than  half  wider 
than  the  prothorax,  oblong  oval;  humeri  abruptly  rounded,  sides  then 
parallel,  rounded  at  tip;  striae  impressed,  punctured,  punctures  almost  con- 
cealed by  the  scales;  interspaces  nearly  flat,  third  a  little  more  convex. 
Antennae  brown,  first  joint  of  funiculus  as  long  as  the  two  following  ; 
second  very  little  longer  than  the  third.     Length  .5  mm. ;  .20  inch. 

One  specimen  from  Dacota,  Mr.  E.  P.  Austin.  Very  different  from  the 
other  species  by  the  nearly  square  prothorax.     The  ventral  segments  are 


LeConto.] 


PIIYTONOMINI.  127 


not  very  unequal,  and  the  fifth  is  but  little  longer  than  the  fourth,  so  that 
it  is  truly  a  Phytonomus. 

LEPYRUS  Sch. 

The  position  of  this  genus  seems  to  me  to  have  been  greatly  misinter- 
preted. Lacordaire  has  placed  it  next  to  Ilylobius,  from  whicli  it  differs 
in  the  form  of  the  mandibles  which  are  emarginate  simply,  as  in  Phytono- 
mus; in  the  size  and  shape  of  the  mentum,  which  is  oblong  and  rather 
large;  in  the  development  of  the  ligula  and  palpi,  which  are  much  smaller 
than  in  Ilylobius,  and  finally  in  the  form  of  the  articular  surface  of  the 
tibiae,  which  is  in  Lepyrus  oblique,  and  in  Hylobius  and  allies  quite 
lateral. 

In  my  opinion,  Lepyrus  is  a  gigantic  Phytonomus,  with  scarcely  any 
generic  characters  to  separate  it,  except  the  less  transverse  eyes  and  the 
oblique  terminal  surfaces  of  the  tibi;e.  The  habits  of  the  species  well 
agree  with  this  view,  as  thej^  are  found  on  plants,  or  on  the  ground, 
while  the  Hylobii  occur  only  under  bark. 
Three  species  occur  in  our  fauna. 

Elytral  strife  composed  of  large  punctures 2 

"         "   feeble,  alternately  approximated,  interspaces 

roughly  granulate - 1.  gemellus. 

2.  Elytra  finely  pubescent  with  gray  hairs,  marked  each 

with  a  white  spot 2.  colon. 

Elytra  thinly  clothed  with  very  small  yellow  scales, 

each  with  a  yellow  spot 3.  geminatus. 

1.  L.  gemellus  Kirby,  Faun.  Bor.  Am.  iv,  198,  pi.  5,  f .  7  ;  Mann., 
Bull.  Mosc.  1853,  ii,  351. 

Hudson  Bay  Territory  and  Alaska. 

2.  L.  colon  Gyll.,  Sch.  Cure,  ii,  330  ;  Boh.,  ib.  vi,  2d,  295  ;  Kirby, 
Faun.  Bor.  Am.  iv,  197  ;  Curculio  colon  Linn.,  Mant.  531  ;  cum  synon. 
plur.  Europ. 

Hudson  Bay  Territory. 

3.  L.  geminatus  Say,  Cure.  12  ;  ed.  Lee.  i,  273. 

Illinois  to  Colorado.  Differs  from  L.  colon  by  the  elytra  clothed  with 
small  narrow  yellow  scales  instead  of  fine  gray  hairs,  and  also  b}'  the  elytra 
being  separately  acuminate  at  tip  instead  of  conjointly  rounded. 

LISTRONOTUS  Jekel.  Ann.  Ent.  Fr.  186i  565. 

This  genus  includes  all  the  larger  North  American  species  heretofore 
classed  under  Listroderes,  and  a  few  moderate  sized  or  small  species  ;  in 
some  of  the  latter  the  beak  becomes  cylindrical,  and  only  feebly  carinate, 
so  that  they  resemble  in  appearance  Phytonomus.  They  are,  however, 
easily  distinguished  by  the  different  proportions  of  the  ventral  segments  ; 
the  first,  second  and  fifth  being  long,  and  the  third  and  fourth  very  short. 
The  legs  are  more  slender  than  in  Phytonomus,  the  tibiae  bent  inwards  at 


128  CUKGULIONID^.  [LeConte. 

the  tip,  and  tolerably  stronglj^  mucronate.  The  side  pieces  of  the  metas- 
ternum  are  narrower  than  in  Phytonomus  and  are  strongly  produced  in- 
wards at  the  front  part.  In  some  of  the  species  I  have  observed  curious 
sexual  characters  in  the  ventral  segments,  but  in  others  no  difference  is 
seen.  The  metasternum  is  long,  and  the  species,  so  for  as  I  know,  are 
winged. 

The  anal  segment  of  the  (^  is  frequently  so  convex  as  to  project  behind 
the  last  ventral,  so  as  to  become  visible  from  beneath.  There  is  an  elon- 
gated surface  on  the  inside  of  the  elytra,  extending  along  the  margin,  for 
the  apical  fourth  of  the  length,  which  is  perhaps  a  stridulating  plate.  I 
have  found  a  somewhat  similar  arrangement  in  other  genera,  but  the  full 
investigation  of  the  subject  must  be  deferred  to  another  time. 

The  relations  of  the  antennal  joints  enable  the  species  to  be  arranged  in 
two  groups  : 

A.  Funiculus  of  antenna;  slender,  third  joint  somewhat  longer  than  the 
fourth  ;  second  joint  twice  or  tlirice  as  long  as  the  fii'st. 

Sub-apical  callus  of  the  elytra  very  prominent  2. 

"               "            "           "      less    prominent  4. 

"               "            "           "      not    prominent  5. 

2.  Beak  carinate  and  sulcate 3. 

Beak  nearly  cylindrical;  lateral  grooves  obsolete  3.  tuberosus. 

o.  Elytra  with  darker  oblicpie  mark 1.  obliquus. 

"      uniform  dirty  brown 2.  sordidus. 

4.  Humeri  rounded,   base  of  elytra  feebly  emar- 

ginatc 4.  squamiger. 

Humeri  oblique,  base  of  elytra  deeply  emargi- 

uatc 5.  callosus. 

5.  Elytra  obliquely  declivous  behind , 6. 

"      compressed  and  vertical  behind 8.  americanus. 

6.  Humeri  rounded 6.  inaequalipennis. 

"        oblique  7.  caudatus. 

Sides  of  prothorax  strongly  rounded 9.  rotundicollis. 

B.  Funiculus  of  antenna;  less  slender,  third  and  following  joints 
rounded,  equal,  second  joint  nearly  three  times  as  long  as  the  first  ;  poste- 
rior callus  of  elytra  fecljle. 

Head  clothed  with  hair-like  scales  ;  beak  slightly 

flattened  above,  more  or  less  carinate  and 

sulcate 2. 

Head  clothed  with  rounded  scales 9. 

2.  Prothorax  distinctly  longer  than  wide 3. 

not  "         "         " 6. 

3.  Scales   of   prothorax   smaller    than   those   of 

elytra 4. 

Scales  of  prothorax  larger  than  those  of  elytra  10.  appendiculatus. 


LeConte.]. 


PHYTON^OMTXI. 


129 


4.  Beak  stout,  strongly  carinate  and  sulcate 11.  sulcirostris 

"    as  usual,  slightly     "         "         "     5. 

5.  Frontal  fovea  obsolete  ;  form  more  elongate. .  12.  nebulosus. 

"          "     deep  ;          "     less          "      ..  13.  frontalis. 

6.  Prothorax  intricately   rugose,    sub-granulate, 

with  scattered  large  punctures 14.  oregonensis. 

Prothorax  deeply,  coarsely  and  densely  punc- 
tured   7. 

7.  Sides  of  prothorax  broadly  rounded 8. 

Sides              "          strongly         "     16.  cribricollis. 

8.  Beak  feebly  carinate  and  sulcate,  frontal  fovea 

faint 15.  latiusculus. 

Beak  strongly  carinate    and  sulcate,    frontal 

fovea  deep 17.  impressifrons. 

9.  Setae  of  ordinary  length 10. 

"     longer  and  clavate 18.  setosus. 

10.  Frontal  fovea  deep,  punctiform 11. 

"            "        obsolete 12. 

11.  Color  mottled 19.  punctiger. 

"     nearly  uniform 20.  teretirc  stria. 

12.  Prothorax  longer  than  wide,  not  vittate 21.  gracilis. 

"         more  rounded  and  broader,  vittate  22.  nevadicus. 

1.  L.  obliquus,  n.  sp. 

Black,  densely  clothed  with  small  rounded  scales,  which  become  larger  ■ 
on  the  prothorax,  and  narrower,  smaller  and  hair-like  upon,  the  head. 
Beak  as  long  as  the  prothorax,  stout,  slightly  curved,  carinate,  dis-- 
tinctly  sulcate  at  tlie  side  ;  frontal  fovea  deep.  Prothorax  nearly 
square,  sides  parallel  for  three-fourths  the  length;  then  suddenly  rounded 
and  narrowed  at  tne  apex;  sides  and  narrower  dorsal  line  palq-brown,  disc, 
flanks  and  apical  spots  each  side  darker;  surface  witli  large  scattered 
blackish  dots.  Scutellum  pale.  Elytra  broadly  emarginate  at  base,  humeri 
oblique,  gradually  narrowed  on  the  sides,  obliquely  declivous  behind,  sub- 
apical  callus  very  prominent,  conical,  obtuse ;  strife  finely  impressed, 
coarsely  punctured,  interspaces  broad  and  flat;  the  scales  are  brown  on  the 
disc  from  the  base  for  two-thirds  the  length,  and  from  the  suture  to  the 
third  stria  ;  also  upon  the  inflexed  flanks  and  near  the  callvis  ;  elsewhere 
they  are  pale-brown,  and  there  is  an  oblique  dark  stripe  upon  the  fourth 
and  fifth  interspaces  in  front  of  the  middle  ;  the  setfe  are  very  sparse  and 
short.  Beneath  the  scales  are  of  the  darker  brown  tint,  with  a  few  large 
blackish  punctures  similar  to  those  upon  the  prothorax.  Length  9.2  mm.  ; 
.36  inch. 

9 .  Last  ventral  segment  with  a  short  deep  channel  at  the  tip  ;  each 
elytron  prolonged  at  the  apex  into  a  short  conical  process.     (^  unknown. 

Two  9  ;  Texas;  Belfrage. 

2.  L.  sordidus  (Gyll.),  Sch.  Cure,  ii,  280,  (Listroderes);  1  L.  disting- 
uendusGyW.,  ibid,  ii,  281. 

PKOC.  AMER.  PHILOS.  SOC.  XV.  96.  Q 


130  curculio:n^idje. 


[LeUonte. 


(^.  First  ventral  segment  flattened  at  base;  anal  segment  projecting 
beyond  the  last  ventral,  and  visible  from  beneath  ;  elytra  not  prolonged  at 
tip. 

9.  Last  ventral  segment  feebly  channeled  at  the  apex;  elytra  conjointly 
prolonged  at  tip. 

Massachusetts  to  Georgia.     Length  8  mm.;  .31  inch. 

I  know  not  why  Gyllenhal  placed  this  species  among  those  in  which  the 
third — seventh  joints  of  the  funiculus  are  nodose  ;  they  are  in  reality  as 
slender  and  subturbinate  as  in  any  of  his  first  division.  The  synonym 
seems  to  differ  from  the  type  only  by  smaller  size  and  slightly  irregular 
elytral  puncturing  ;  similar  variations  occur  in  other  species. 

3.  L.  tuberosus,  n.  sp. 

Black,  densely  clothed  with  yellowish-brown  rounded  scales,  which  be- 
come larger  on  the  prothorax,  and  hair-like  upon  the  head.  Beak  as  long 
as  the  prothorax,  stout,  cylindrical,  carina  and  grooves  obsolete,  frontal 
fovea  feeble.  Prothorax  as  wide  as  long,  sides  nearly  parallel,  suddenly 
rounded  and  narrowed  near  the  tip,  indistinctly  trivittate  with  pale  and 
sprinkled  with  large  distinct  black  dots.  Scutellum  pale.  Elytra  at  base 
broadly  emarginate,  humeri  oblique,  so  that  they  become  one-third  wider 
than  the  prothorax,  sides  gradually  narrowed  behind  the  widest  part;  pos- 
terior callus  large,  conical,  prominent  ;  strine  punctured,  interspaces  wide 
nearly  flat ;  scales  uniform  in  color,  very  dense,  seta?  very  short.  Beneath 
of  the  same  color  as  above,  hind  thighs  with  a  pale  band.  Length  7  mm.  ; 
.28  inch. 

(^.  First  ventral  segment  flattened  at  base,  anal  segment  protuberant 
beyond  the  fifth  ventral  and  visible  from  beneath  ;  elytra  rounded  at  tip. 

9 .  Last  ventral  segment  feebly  impressed  near  the  tip,  each  elytron  pro- 
longed at  tip  into  a  long  straight  process. 

Michigan  to  Georgia.  Easily  known  by  the  absence  of  the  carina  and 
grooves  of  the  beak,  which  are  so  obvious  in  the  two  preceding  sijecies. 

4.  L.  squamiger  (Say),  Cure.  11  ;  ed.  Lee.  i,  271,  (Listroderes);  Gyll. 
Sch.  Cure,  ii,  279,  Boh.,  ibid,  vi,  189,  partim. 

9 .  Last  ventral  with  two  strongly  elevated  folds  at  the  tip,  converging 
towards  the  front,  but  not  meeting,  presenting  the  appearance  of  a  deep 
excavation ;  pygidium  feebly  channeled,  rather  pointed  at  tip  ;  elytra  sepa- 
rately acuminate,  but  not  prolonged  at  tip  ;  (^  wanting. 

One  9>  Georgia.  Length  9.7  mm.  ;  .38  inch.  The  posterior  callus  of 
the  elytra  is  oblong,  moderately  prominent,  but  not  a  conical  tuberosity  as 
in  the  three  preceding  species,  since  it  gi'aduates  imperceptibly  into  the 
fifth  interspace. 

The  9  mentioned  by  Boheman  in  the  last  citation  belongs  to  this  species, 
the  supposed  (^  with  caudate  elytra  is  a  9  variety  of  L.  inmqualipennis. 

5.  L.  callosus,  n.  sp. 

Blackish,  densely  clothed,  as  in  the  other  species,  with  small  rounded 
scales,  becoming  larger  on  the  prothorax,  and  hair-like  upon  the  head. 


LeConte.] 


phyto:n^omi^i.  131 


they  are  dirt  colored  on  the  general  surface  of  the  body,  but  pale  at  the 
sides  of  the  prothorax  and  elytra,  and  on  a  narrow  dorsal  vitta  of  the  for- 
mer. Beak  as  long  as  the  prothorax,  distinctly  carinate  and  silicate,  pro- 
thorax  scarcely  as  wide  as  long,  broadly  rounded  on  the  sides,  gradually 
narrowed  in  fi'ont  of  the  middle,  marked  as  usual  with  scattered  black  dots. 
Scutellum  pale.  Elytra  strongly  emarginate  at  base,  humeri  oblique;  striai 
strongly  punctured,  interspaces  wide,  somewhat  convex;  posterior  callus 
rather  prominent,  oblong,  fading  in  front  into  the  fifth  and  adjoining  inter- 
spaces. Beneath  dirty  brown  speckled  with  black  punctures.  Length  9- 
10.5  mm.  ;  .35-43  inch. 

(^.  Last  ventral  segment  not  impressed,  anal  segment  very  slightly  visi- 
ble behind  the  last  ventral. 

9 .  First  and  second  ventrals  with  a  broad  shallow  impression,  last  ven- 
tral with  a  deep  round  excavation  extending  from  the  base  to  the  tip  ; 
pygidium  semi-circularly  emarginate  at  tip  ;  elytra  separately  subacumi- 
nate  at  tip. 

New  York  to  Georgia.  The  posterior  callus  of  the  elytra  is  about  as 
prominent  as  in  L.  squamiger,  but  not  so  narrow. 

6.  Li.  inaequalipennis  (Boh.),  Sch.  Cure,  vi,  189,  (Listroderes). 

(^.  Ventral  segments  first  and  second  broadly  concave  at  the  middle, 
fifth  not  impressed,  anal  segment  convex  and  protuberant  behind  the  last 
ventral ;  elytra  conjointly  rounded  at  tip. 

9-  Last  ventral  with  two  strongly  elevated  folds  at  tip,  converging  an- 
teriorly but  not  meeting,  leaving  between  them  a  deep  excavation  ;  pygid- 
ium somewhat  pointed  at  tip  ;  elytra  separately  pi'olonged  at  tip  into  a  long 
straight  pointed  process. 

Middle  and  Southern  States.  Closely  allied  to  the  next,  but  easily  dis- 
tinguished by  the  sexual  characters  and  by  the  elytra  being  but  slightly 
emarginate  at  base,  with  rounded  humeri,  as  in  L.  squamiger.  Length  7- 
11  mm.  ;  .275-.  43  inch. 

7.  L.  caudatus  (Say),  Jour.  Ac.  Nat.  Sc.  Phila.  iii,  311  ;  ed.  Lee.  ii, 
174,  {Bliynchmnus);  Gyll.,  Sch.  Cure,  ii,  278  {Listroderes). 

(^.  Last  ventral  segment  not  impressed,  anal  segment  slightly  visible 
behind  the  last  ventral,  elytra  rounded  at  tip. 

9  •  Last  ventral  broadly  but  feebly  concave  towards  the  tip  ;  pygidium 
not  pointed  at  tip  ;  elytra  separately  prolonged  into  apical  processes  which 
converge  at  tip. 

Western  States. 

8.  L.  americanus,  n.  sp. 

Blackish,  covered  with  round  dirty -brown  scales,  becoming  larger  on  the 
prothorax,  less  dense  and  hair-like  upon  the  head  and  beak.  Beak  as  long 
as  the  prothorax,  strongly  carinate  and  sulcate.  Prothorax  scarcely  as  long 
as  wide,  rounded  on  the  sides,  narrowed  before  the  middle,  constricted  to- 
wards the  tip  ;  marked  with  two  sinuous  lateral  vittsE,  and  a  scarcely  dis- 
tinct dorsal  line  of  pale  scales.     The  punctures  are  less  concealed  by  scales 


132  cuRCULioisriD^. 


[LeOonte. 


than  in  the  species  above  described,  and  are  very  coarse  and  dense.  Scutel- 
lum  pale.  Elytra  strongly  emarginate  at  base,  humeri  oblique,  sides  then 
parallel,  rounded  behind  ;  the  posterior  callus  is  distinct,  not  very  promi- 
nent ;  the  elytra  are  compressed  at  the  suture  towards  the  tip,  and  verti- 
cally declivous  ;  the  striae  are  stronglj^  punctured,  the  interspaces  somewhat 
uneven;  there  is  an  indistinct  broad  stripe  commencing  at  the  humeri  and 
running  backwards  on  the  sixth,  seventh,  and  eighth  interspaces,  and  there 
are  besides  some  irregular  mottlings  of  pale  scales.  Beneath  punctured, 
irregularly  spotted  with  large  pale  scales  ;  thighs  with  a  pale  band.  Length 
14  mm.  ;  .55  inch. 

9 .  Last  ventral  deeply  concave,  the  excavation  smooth  at  the  bottom, 
and  transversely  impressed  with  a  short  line,  becoming  narrow  at  the  tip, 
which  is  deeply  emarginate  ;  the  upper  marginal  line  is  continued  around 
the  tip,  separate  from  the  lower  one,  and  the  space  between  them  is  curi- 
ously and  deeply  marked  with  two  excavations  on  each  side  near  the  extreme 
emargination  ;  pygidium  stronglj''  emarginate  ;  tips  of  the  elytra  separately 
rounded.     (^  wanting. 

Georgia,  three  specimens.  I  have  seen  nothing  similar  to  the  curious 
sculpture  of  the  last  ventral  segment,  though  in  its  homology  it  is  only  a 
modification  and  complication  of  the  forms  mentioned  under  other  species. 
It  is  the  Eudocimus  americanus\  Dej.  Cat.  299,  but  bears  no  resemblance 
to  Eu.  Mannerheimii. 

9.  L.  rotundicollis,  n.  ap. 

Blackish,  covered  with  the  usual  scales,  of  a  dirty-brown  ;  beak  feebly 
carinate,  lateral  grooves  almost  obsolete  ;  frontal  fovea  distinct.  Prothorax 
as  wide  as  long,  sides  strongly  rounded,  clothed  with  paler  scales  ;  surface 
coarsely  and  densely  punctured  ;  an  indistinct  paler  dorsal  stripe  may  also 
be  traced.  Elytra  with  deep  punctured  strise,  and  convex  interspaces ; 
posterior  callus  obsolete.     Length  7.5  mm.  ;  .30  inch. 

9.  Last  ventral  with  a  large  shallow  rounded  impression  ;  elytra  con- 
jointly rounded  at  tip.     (^  wanting. 

One  9 ;  Greorgia.  Quite  distinct  by  the  more  rounded  prothorax.  The 
funiculus  of  the  antennae  is  as  slender  as  in  an,y  of  the  preceding  species  ; 
the  sette  of  the  elytra  are  rather  more  conspicuous. 

10.  L.  appendiculatus  (Boh.),  Sch.  Cure,  vi,  2d,  192,  (Listroderes). 
(^.  Elytra  conjointly  rounded  at  tip. 

9 .  Elytra  separately  produced  into  a  short  straight  process. 
Canada  to  Texas.     More  elongate  than  any  other  species  in  which  the 
beak  is  flattened  and  subcarinate.     Length  4.2-6.5  mm.  ;  .16-.25  inch. 

11.  L.  sulcirostris,  n.  sp. 

Elongate,  black,  less  densely  covered  with  small,  rounded,  dirty  brown 
scales,  no  larger  on  the  prothorax.  Beak  stouter  than  usual,  with  the  ridges 
and  grooves  so  strongly  marked  as  to  appear  tricai'inate  and  quadrisulcate. 
Prothorax  longer  than  wide,  sides  nearly  straight  for  two  thirds  the  length, 
then  gently  rounded  to  the  apex ;  punctures  dense,  unequal,  the  larger  ones 


LeConte.] 


phyto;n^omini.  133 


more  distant.  Elytra  broadly  emarginate  at  base,  one-fourth  wider  than 
the  prothorax,  humeri  rounded;  strife  strongly  punctured,  interspaces 
slightly  convex,  conjointly  rounded  at  tip  in  both  sexes.  Length  8  mm. ; 
.32  inch. 

(^.  Last  ventral  not  impressed. 

9.     "  "      with  a  broad,  shallow  impression. 

One  pair  of  partially  abraded  specimens  :  Georgia.  Easily  known  by  the 
stouter  and  more  deeply  sculptured  beak,  and  stouter  antennae;  otherwise 
it  resembles  L.  nebulosus  in  form. 

12.  L.  nebulosus,  n.  sp. 

Elongate,  blackish,  clothed  with  scales,  mottled  brown  and  dark,  on  the 
head  with  a  metallic  lustre.  Beak  feebly  carinate  and  sulcate  as  usual. 
Prothorax  longer  than  wide,  sides  feebly  rounded  for  two-thirds  the  length, 
then  more  rounded  to  the  tip ;  scales  small,  a  bifurcated  lateral  vitta,  and 
an  interrupted  dorsal  line  paler  ;  punctures  dense  and  deep.  Elytra  about 
one-fourth  wider  than  the  prothorax,  strongly  emarginate  at  base,  humeri 
oblique,  slightly  rounded  ;  strias  strongly  punctured,  interspaces  wide  and 
flat.     Thighs  with  a  pale  band.     Length  9.5  mm.  ;  .375  inch. 

9 .  Last  ventral  slightly  impressed  ;  elytra  conjointly  rounded  at  tip. 

One  9.  Missouri.  Easily  recognized  by  the  elongate  form  and  mottled 
color. 

13.  L.  frontalis,  n.  sp. 

Blackish,  less  elongated,  covered  with  rounded  scales,  which  are  no 
larger  on  the  prothorax;  these  scales  are  dirty  brown  on  the  elytra,  and  Avith 
a  metallic  lustre  on  the  head  and  prothorax.  Beak  finely  carinate,  lateral 
grooves  almost  obsolete,  frontal  fovea  deep.  Prothorax  very  little  longer 
than  wide,  broadly  rounded  on  the  sides,  transversely  impressed  near  the  tip; 
lateral  stripes  and  dorsal  line  indistinctly  ]3aler,  punctures  dense,  of  two 
sizes,  the  larger  more  distant.  Elytra  one-third  wider  than  the  prothorax, 
broadly  emarginate  at  base,  humeri  rounded;  striae  strongly  punctured, 
interspaces  wide,  nearly  flat;  tip  conjointly  rounded  in  both  sexes.  Length 
5.7-10  mm.;  .23-. 40  inch. 

(^.  Last  ventral  not  impressed;  anal  segment  slightly  pronunent. 

9 .  Last  ventral  with  three  shallow  impressions. 

Michigan,  New  York,  Georgia,  Texas,  Stouter  than  L.  nebulosus,  and 
easily  recognized  by  the  above  characters.  The  setae  of  the  elytra  are  more 
obvious  than  usual. 

14.  L.  oregonensis  Lee,  Pac.  R.  R.  Expl.  and  Surv.  Ent  55. 

One  abraded  9  from  Oregon.  The  last  ventral  segment  is  not  at  all  im- 
pressed. The  beak  is  feebly  carinate,  and  obsoletely  sulcate,  the  frontal 
fovea  not  deep.  The  prothorax  is  a  little  wider  than  long,  much  rounded 
on  the  sides,  and  feebly  channeled,  the  sculpture  is  peculiar,  consisting  of 
small  granules,  separated  by  deep  rugosities,  and  mixed  with  large,  scat- 
tered punctures;  on  each  granule  is  a  small  puncture;  the  few  scales  which 
remain  are  small,  and  indicate  three  paler  stripes.  The  elytra  are  one-third 


134  CUKCULIOISID^. 


[LeUonte. 


wider  than  the  prothorax;  the  humeri  are  rounded,  and  the  base  slightly 
emarginate;  strise  strongly  punctured,  interspaces  slightly  convex.  Length 
6  mm.;  .23  inch. 

15.  L.  latiusculus  (Boh.),  Sch.  Cure.  vi.  2d.  199. 

I  refer  this  name  to  a  species  which  occurs  in  the  Middle  and  Southern 
States,  and  is  by  no  means  rare.  The  form  is  less  elongate  than  in  L. 
appendiculatus,  and  the  prothorax  is  a  little  wider  than  long,  slightly  nar- 
rowed in  front,  and  feebly  rounded  on  the  sides;  the  punctures,  on  remo- 
val of  the  scales,  are  large,  deep  and  densely  placed;  the  scales  are  of  the 
usual  dirt  color,  not  conspicuously  varied  in  color,  though  the  prothorax  is 
indistinctly  trivittate,  and  larger  upon  the  prothorax  than  upon  the  elytra. 
Elytra  about  one-third  wider  than  the  protliorax,  slightly  emarginate  at 
base,  humeri  appearing  rounded  when  viewed  from  above,  but  oblique  when 
viewed  from  the  front;  striai  strongly  punctured,  interspaces  slightly  con- 
vex; setae  short,  tip  conjointly  rounded  in  both  sexes.  The  last  ventral 
segment  is  not  impressed  in  9  •     Lengtli  5 — 6  mm. ;  .20 — .24  inch. 

16.  L.  cribricollis,  n.  sp. 

This  species  agrees  in  form,  color  and  sculpture  with  the  preceding,  ex- 
cept that  the  prothorax  is  very  distinctly  wider  than  long,  and  more  strongly 
rounded  on  the  sides;  it  is  distinctly  constricted  near  the  tip,  so  that  look- 
ing from  above,  the  postocular  lobes  appear  more  prominent.  The  humeral 
angles  of  the  elytra  are  more  distinctly  oblique.  Length  6.7  mm. ;  .27 
inch. 

9 .  Last  ventral  with  a  large  round  impression,  the  bottom  of  which  is 
shining  and  nearly  smooth. 

One  9>  Georgia.  In  this  as  in  the  preceding  species,  the  beak  is  but 
faintly  sulcate,  and  the  middle  carina  is  slightly  marked;  the  frontal  fovea 
is  small,  and  feebly  impressed. 

17.  L.  impressifrons,  n.  sp. 

This  species  entirely  resembles  L.  latiusculus,  in  form  and  sculpture, 
but  the  beak  is  stouter,  more  distinctly  carinate  and  sulcate,  and  the  frontal 
fovea  is  large  and  deep.  The  last  ventral  is  not  impressed  in  9  •  Length 
5.8  mm.;  .23  inch. 

Two  specimens,  Georgia  and  Louisiana.  The  prothorax  is  very  deeply 
and  coarsely  punctured,  and  the  sides  are  broadly  rounded. 

18.  L.  setosus,  n.  sp. 

Blackish,  covered  with  a  dense  crust  of  dirty  gray  and  brownish  round 
scales,  larger  upon  the  prothorax,  and  not  becoming  hair-like  upon  the 
head.  Beak  moderately  tricarinate  and  quadrisulcate.  Prothorax  distinctly 
wider  than  long,  sides  suddenly  rounded  near  the  base  and  apex.  Scutel- 
lum  pale.  Elytra  not  much  wider  than  the  prothorax,  slightly  emarginate 
at  base;  humeri  rounded,  striaB  punctured,  interspaces  slightly  convex,  with 
rows  of  clavate  bristles  longer  and  more  evident  than  the  setse  of  the  other 
species;  tip  conjointly  rounded  in  both  sexes. 

r^.  Last  ventral  slightly  impressed  at  the  tip. 

9 .  Last  ventral  deeply  impressed  at  the  tip. 


LeOonte.J  I'HYTONOMTNI.  135 

Florida  and  Georgia:  Messrs.  Hubbard  and  Schwarz.  Very  easily  rec- 
ognized by  the  scaly  head  and  long  clavate  bristles. 

19.  L.  punctiger,  n.  sp. 

Elongate  covered  with  small  round  scales  of  brownish  gray  and  brown 
mottled,  and  slightly  pearly,  not  larger  on  the  prothorax,  and  but  little 
smaller  on  the  head.  Beak  cylindrical,  neither  carinate  norsulcate;  frontal 
fovea  punctiform  deep.  Prothorax  longer  than  wide,  scarcely  narrower  in 
front,  broadly  rounded  on  the  sides,  with  a  wide  lateral  pale  stripe,  which 
is  bifurcated  in  front;  the  sculpture  is  concealed  by  the  scales,  but  as  usual 
a  few  large  scattered  punctures  are  seen.  Scutellum  pale.  Elytra  nearly 
one-half  wider  than  the  prothorax,  humeri  oblique  and  slightly  rounded, 
base  broadly  emarginate;  striae  strongly  punctured;  interspaces  tvide  nearly 
flat,  setae  quite  obvious,  but  not  stouter  than  usual;  tip  conjointly  rounded. 
Last  ventral  segment  not  impressed.  Antennae  and  legs  dai'k  brown. 
Length  5.7  mm. ;  .23  inch. 

Dacota:  one  specimen.  This  species  and  the  next  are  more  elongated  in 
form  than  any  others  here  described,  except  L.  appendtculatus. 

20.  L.  teretirostris  Lee.  Pac.  R.  R.  Expl.  and  Surv.  Ent.  55. 

San  Francisco,  Cal.  Precisely  similar  in  form  to  the  preceding,  but  the 
beak  is  a  little  stouter  and  very  feebly  carinate  and  sulcate;  the  frontal 
fovea  is  punctiform,  but  not  so  deep;  the  scales  are  of  a  uniform  pale  mud 
color,  with  slight  metallic  lustre,  and  are  scarcely  mottled  with  darker. 
The  last  ventral  segment  is  impressed  at  the  tip. 

21.  L.  gracilis,  n.  sp. 

Precisely  similar  to  L.  teretirostris  in  form,  size  and  color,  but  the  beak 
is  more  slender,  as  in  punctiger,  and  neither  carinate  nor  sulcate;  it  differs 
from  both  by  the  absence  of  the  frontal  fovea.  The  prothorax  is  entirely 
uniform  in  color,  and  the  elytra  slightly  mottled  towards  the  tip.  Length 
5.3  mm.;  .21  inch. 

One  specimen,  Nevada:  E.  P.  Austin.  The  last  ventral  is  feebly  im- 
pressed at  tip,  as  in  the  preceding. 

22.  L.  nevadicus,  n.  sp. 

Less  elongate,  covered  densely  with  dirt  colored  scales,  without  lustre. 
Head  covered  with  smaller  scales,  beak  cylindrical,  very  feebly  carinate 
and  sulcate,  frontal  fovea  wanting.  Prothorax  not  longer  than  wide,  more 
rounded  at  the  sides,  and  slightly  constricted  in  front;  narrow  lateral 
stripes,  and  a  dorsal  Ime  of  paler  scales.  Elytra  one-third  wider  than  the 
prothorax,  broadly  emarginate  at  base,  humeri  rounded,  stria3  punctured, 
interspaces  wide,  nearly  flat,  setae  as  in  the  three  preceding  species.  Last 
ventral  segment  impressed  at  the  tip.     Length  4  mm. ;.  .16  inch. 

Nevada,  E.  P.  Austin:  three  specimens.  Quite  distinct  from  L.  gracilis 
by  the  less  elongate  form  and  more  rounded  sides  of  prothorax.  The 
sculpture  of  the  prothorax  is  concealed  by  the  scales  as  usual,  so  that  I 
cannot  compare  it  as  fully  as  I  desire  with  L.  oregonensis,  which  it  resem- 
bles in  form.  The  latter,  however,  has  the  last  ventral  not  impressed  (9). 
and  has  probably  the  head  clothed  with  hair-like  and  not  round  scales. 


136  CUROULIONID^. 


[LeUonte. 


I  have  one  specimen  of  the  same,  or  a  very  similar  species  from  Texas, 
sent  by  Belfrage.  The  scales  are,  however,  in  great  part  abraded,  and 
although  I  perceive  some  differences,  I  am  unwilling  to  indicate  it  as 
distinct. 

MACROPS  Kirby. 

The  smaller  species  placed  by  Schonherr  in  Listroderes  were  separated 
by  Mr.  Jekel  as  a  distinct  genus,  Hyperodes  (Ann.  Ent.  Fr.  1864,  566), 
and  undoubtedly  the  separation  is  a  proper  one.  I  find,  however,  that  the 
two  species  upon  which  Mr.  Kirby  founded  his  genus  Macrops  (Fauna  Bor. 
Am.  199),  belong  to  the  same  set,  and  that  name  must  therefore  have  pre- 
cedence. 

This  genus  is  easily  distinguished  from  the  preceding  by  the  tibiie  being 
stouter  and  less  strongly  niucronate  at  tip,  and  by  the  first  joint  of  the 
funiculus  being  stouter  and  as  long  as  the  second,  except  in  M.  solutus, 
where  it  is  about  two-thirds  as  long  as  the  second;  the  seventh  joint  of  the 
funiculus  is  wider  than  the  sixth,  but  is  quite  distinct  in  most  of  the  species, 
though  in  others  it  is  rather  closely  connected.* 

It  will  be  seen  that  in  the  characters  by  which  this  genus  differs  from 
Listronotus  it  approaches  PTiytonomus.  The  greatest  differences  will  be 
found,  however,  in  the  proportion  of  the  ventral  segments,  which  in  the 
last  named  genus  are  not  very  unequal,  while  in  Macrops  the  third  and 
fourth  are  very  evidently  shorter,  and  together  are  not  longer  than  each  of 
the  others. 

The  species  are  closely  allied  and  difficult  to  distinguish.  The  descrip- 
tions of  Boheman  and  Gyllenhal,  though  minute,  are  not  sufl^cient  to 
enable  me  to  identify  their  species  with  reasonable  certainty,  and  I  there- 
fore content  myself  with  giving  a  list  of  those  named  in  the  books  with 
references,  awaiting  more  abundant  material  and  comparison  with  the 
described  types  for  a  proper  tabulation  of  the  species: 

1.  M.  delumbis  (GylL),  Sch.  Cure,  ii.,  283. 

2.  M.  lineatulus  (Say),  Cure,  ii;  ed.  Lee.  i,  272;  (Boh.),  Sch.  Cure,  vi, 
2d,  195. 

3.  M.  sparsus  (Say),  Cure,  ii;  ed.  Lee.  i,  271;  (GylL), Sch.  Cure,  ii,  282; 
Listr.  squalidus  Gyll.,  ibid,  ii,  181. 

4.  M.  spurcus  (Boh.),  Sch.  Cure,  vi,  2d,  196. 

5.  M.  ininiundus  (Boh.),  Sch.  Cure,  vi,  2d.  198. 

6.  M.  humilis  (Gyll.),  Sch.  Cure,  ii,  284;  M.  ■maculicolUs  Kirby,  Faun. 
Bor.  Am.  iv,  200;  pi.  8,  f.  4. 

7.  M.  porcellus  (Say), Cure.  11  ;ed.  Lee.  i,  271;  (Gyll.), Sch. Cure,  ii,284. 

8.  M.  vittaticollis  Kirby,  Faun.  Bor.  Am.  iv,  200. 

9.  M.  solutus  (Boh.),  Sch.  Cure,  vi,  2d,  197. 

*  The  anal  segment  of  the  w^  is  usually  protuberant;  the  last  ventral  is  im- 
pressed in  some  Q  Q  ,  but  never  very  deeply.  The  form  of  the  beak,  the  size  of 
the  scales,  and  the  length  of  the  setae  afford  good  characters  for  the  recognition 
of  many  of  the  species,  of  which  there  are  probably  fifteen  to  seventeen  in  my 
collection. 


LeConte.]  EMPIIYASTmi.  137 

In  this  species,  which  is  easily  known  by  the  denuded  transverse  black 
spot,  sometimes  becoming  a  band,  about  the  middle  of  the  elytra,  the  sec- 
ond joint  of  tlie  funiculus  is  longer  than  the  first,  and  the  tibiae  are  more 
slender  and  more  bent  at  the  tip  than  in  the  others,  thus  establishing  a  pas- 
sage to  Listronotus. 

Tribe  II.  emphyastini. 

Tliis  tribe  is  evidently  closely  related  to  Ilylobiini,  and  agrees  with  it  in 
the  structure  of  the  mouth,  but  differs  from  it,  as  from  all  other  tribes  in 
our  fauna,  by  the  peculiar  form  of  the  tibiae,  which  are  fitted  for  digging. 

The  front  tibiae  are  compressed,  slender,  sub-sinuate,  prolonged  beyond 
the  articulation  of  the  tarsus  into  a  broad  process,  rounded  at  tip,  and  con- 
cave beneath  ;  the  spur  is  small  and  straight ;  the  middle  tibi*  are  roughly 
tuberculate  and  setose,  with  the  apical  margin  repand,  dilated  on  the 
outer  side,  and  armed  with  a  straight  fixed  spur  at  the  inner  side;  the  hind 
tibiae  are  bent  outwards,  tuberculate  and  setose;  much  thickened  towards  the 
tip,  with  very  large  and  acutely  margined  corbels.  Tarsi  sparsely  setose 
beneath,  and  not  spongy;  third  joint  not  dilated  nor  bilobed  ;  fourth  joint 
moderate  in  size,  claws  slender,  simple  and  divergent. 

The  antennae  are  geniculate  ;  funiculus  7-jointed;  first  joint  longer  ;  2-7 
gradually  broader,  forming  a  perfoliate  stem  uniting  with  the  club,  whicli 
is  oval,  annulated  and  pubescent.  Beak  stout,  shorter  than  the  prothorax, 
deeply  grooved;  antennal  grooves  extending  to  the  eyes,  which  are  small, 
nearly  round,  and  coarsely  granulated. 

Prosternum  not  emarginate  beneath;  front  coxae  contiguous,  middle  ones 
slightly  separated,  metasternum  short,  side  pieces  narrow,  hind  coxie  rather 
large,  oval,  widely  separated,  extending  to  the  elytral  margin.  Thighs 
stout,  unarmed.  Ventral  segments  unequal;  thii'd  and  fourth  united  equal 
to  the  second  or  fifth;  sutures  straight,  the  first  obliterated  at  the  middle. 

The  above  characters  are  drawn  from  Emphyastes.  The  Australian 
genus  Aphela  only  differs  by  the  legs  being  less  stout ;  the  tibiae  less  ex- 
panded or  thickened  towards  the  tip,  and  by  the  beak  not  being  grooved. 

EMPHYASTES  Mann. 

1.  E.  fucicola  Mann.,  Bull.  Mosc.  1853,  ii,  354;  Lee,  Pac.  R.  W.  Expl. 
&  Surv.  Ins.  57,  pi.  2,  f.  8;  Lacordaire,  Gen.  Col.  Atlas,  pi.  71,  fi.  5. 

Sea  Coast  of  the  Pacific,  from  Alaska  to  San  Diego;  under  sea- weed  cast 
up  by  the  waves.  The  figure  of  the  antenna  given  by  Lacordaire  is  very 
incorrect. 

Tills  species  varies  greatly  in  size,  but  I  have  observed  none  intermediate 
between  the  large  and  small  varieties.     Length  4.8-6  mm.;  .19-. 24  inch. 

Tribe  III.  HYLOBiisri. 

The  mandibles  in  this  tribe  have  two  apical  teeth,,  of  which  the  lower 
one  is  a  little  shorter  ;  there  is  besides  a  cusp  on  the  inner  edge,  so  that 
they  becomes  three-toothed.     This  normal  form  is  preserved  through  many 

PROC.  AMEB.  PHILOS.  SOC.  XV.  96.  R 


138  CURCULIONIDJE. 


[LeConte. 


of  the  following  tribes,  modified  only  by  the  greater  development  of  the 
inferior  edge  and  cusp,  which  by  assuming  more  prominence  gives  finally 
an  oblique  form  to  the  mandible.  The  gular  peduncle  is  longer  than  wide, 
a  little  wider  in  front,  truncate  anteriorly;  the  mentum  is  transverse,  not 
large,  and  the  palpi  are  rather  more  developed  than  in  the  following  tribes. 
The  beak  is  rather  long,  not  slender,  except  in  Pissodes,  and  the  antennal 
grooves  do  not  extend  to  the  tip.  Eyes  transverse.  The  antennie  are 
geniculate  ;  scape  long,  funiculus  7-jointed,  club  oval,  pointed,  annulated, 
entirely  pubescent  and  sensitive,  except  in  Pissodes,  where  the  first  joint 
is  smooth  and  sub-glabrous. 

The  front  coxae  are  contiguous  and  the  cavities  confluent,  except  in 
Pissodes,  where  they  are  slightly  separated.  The  middle  coxiE  are  not 
widely  separated;  the  side  pieces  of  metasternum  diagonally  divided,  with 
the  epimera  triangular,  not  attaining  largely  the  base  of  the  prothorax. 
Side  pieces  of  metasternum  narrow,  slightly  dilated  in  front.  Hind  coxae 
widely  separated,  attaining  the  lateral  margin,  or  nearly  so. 

Ventral  segments  unequal,  first,  second  and  fifth  longer;  sutures  straight 
and  deeply  impressed,  except  the  first  which  is  finer  and  sometimes 
slightly  sinuate.     Pygidium  covered  b}^  elj^tra. 

Legs  stout,  or  strong  ;  tibite  armed  Avith  a  strong  hook  at  tip  ;  articular 
face  lateral  ;  terminal  edge  of  hind  tibiae  double,  except  in  Pissodes;  tarsi 
with  third  joint  dilated,  spongy  beneath  ;  claws  simple,  divergent. 

The  species  are  of  moderate  size,  never  very  small,  and  are  sub-cortical 
in  their  habits  ;  they  mostly  infest  coniferous  trees. 

This  tribe  leads  directly  to  the  Erirhinini,  from  which  they  differ  chiefly 
by  the  less  delicately  organized  mouth,  and  generally  stronger  and  coarser 
structure,  and  by  the  double  edge  or  corbel  to  the  terminal  margin  of  the 
hind  tibia^.  This  character,  common  in  Otiorhynchidae,  now  reappears  for 
the  last  time  in  the  present  family. 

These  corbels  are  very  large  and  wide  in  Pachylobius,  but  narrow  in  the 
other  genera. 

Mesosternum  moderately  long 2. 

"  very  short Plinthus. 

2.  Front  coxae  contiguous 3. 

"  "      slightly  separated Pissodes. 

3.  Thighs  clavate,  strongly  toothed 4. 

"         feebly  clavate,  not  toothed 6. 

4.  Tibiae  of  usual  form 5. 

"      short  and  very  thick Pachylobius. 

5.  Body  with  spots  of  fine  pubescence Hylobius. 

"         "        "         small  scales Hilipus. 

6.  Eyes  small,  elytra  oval,  convex Hypomolyx. 

"    larger,  elytra  elongate,  parallel Eudocimus. 

PLINTHUS  Germ. 

A  single  species  of  this  genus,  Avhich  is  easily  recognized  by  the  very 
short  metasternum,  occurs   in   Oregon   and  Alaska.     It  is  very  roughly 


LieConte.] 


HYLOEHNI.  139 


sculptured  and  tuberculate.  The  thighs  are  slightly  clavate,  sinuate 
beneath  near  the  tip,  and  armed  with  a  small  tooth.  The  tibiie  slightly 
curved,  not  very  stout,  not  compressed,  strongly  sinuate  on  the  inner  side, 
and  serrate  from  the  middle  to  the  tip.  The  first  joint  of  the  funiculus  is 
longer  than  the  second  ;  2-7  gradually  a  little  stouter,  rounded  in  form ; 
club  small,  oval  pointed,  pubescent. 

1.  P.  carinatus  Boh.,  Sch.  Cure,  vi,  334;  Mann.,  Bull.  Mosc.  1S52,  352; 
HeilipuH  scrobiculatus  Mann.,  ibid.  1843,  292,  (9)- 

The  (J'  is  smaller  and  narrower  than  the  $  and  has  the  abdomen  broadly 
and  deeply  concave  in  front.  The  color  is  blackish  brown,  and  in  well 
preserved  specimens  the  elytra  are  mottled  with  spots  of  yellow-brown 
small  narrow  hair-like  scales.     Length  6-9  mm  ;  .24-.  43  inch. 

HYPOMOLYX  n.  g. 

Body  elongate,  ovate,  broader  behind,  proportioned  nearly  as  in  the 
Alophid;ie  (Thricalophus).  Beak  as  long  as  the  prothorax,  rather  stout, 
slightly  curved,  coarsely  punctured  with  deep  triangular  auteocular 
groove  at  the  side,  and  three  faint  carinse  above  ;  antennal  grooves  ex- 
tending to  the  lower  edge  of  the  eyes,  which  are  transverse,  rather  small, 
and  not  very  finely  granulated.  Prothorax  without  postocular  lobes,  pro- 
sternum  broadly  emarginate  in  front,  and  fringed  with  long  yellow  ciliae. 
Mesosternum  as  long  as  the  first  ventral  segment.  Ventral  segments  less 
unequal  than  in  the  other  genera  ;  fifth  but  a  little  longer  than  fourth  ; 
first  suture  obtusely  angulated  at  the  middle.  Thighs  scarcely  clavate, 
sinuate  beneath  near  the  tip,  not  toothed  ;  tibiae  slender,  feebly  sinuate  on 
the  inner  side,  armed  with  a  strong  apical  hook.  The  first  and  second 
joints  of  the  funiculus  are  elongate  and  equal,  3-6  rounded,  shorter;  seventh 
broader  and  larger,  almost  forming  part  of  the  club,  though  less  so  than 
in  Hylobius. 

1.  H.  pinicola.  Hylobius  pinicola  Couper,  Trans.  Lit.  and  Historical 
Soc.  Quebec,  1864. 

Lake  Superior,  Hudson  Bay  Terr.,  Canada.  Mentioned  by  me  in 
Agassiz  Lake  Superior,  as  Hylobius  heros,  but  not  described.  A  fine  species, 
with  the  prothorax  rather  small,  sub-serrate  on  the  sides,  very  coarsely 
punctured,  thinly  clothed  with  coarse  hair,  carinate  in  front  ;  the  elytra 
densely  punctured,  mottled  with  small  spots  of  yellow  hair;  strias  composed 
of  large  elongate  deep  punctures.     Length  13.5  mm  ;  5.3  inch. 

PACHYLOBIUS  n.  g. 

I  have  separated  as  a  distinct  genus  Hylobius  picivorus,  which  differs 
greatly  from  the  other  species  by  the  tibiae  being  much  shorter  and  stouter, 
and  expanded  at  the  tip,  so  that  the  corbels  or  surface  included  by  the  double 
edge  on  the  outer  apical  margin  is  much  wider  than  in  the  other  genera 
of  the  tribe.  The  beak  is  as  long  as  the  prothorax,  ratherstout,  not  curved, 
feebly  sulcate  in  front  of  the  eyes,  antennal  grooves  attaining  the  middle 


140  CURCULIONLD^. 


[LeConte. 


of  the  eyes,  which  are  large,  transverse,  and  not  finely  granulated.  Anten- 
nfe  stout,  funiculus  with  rather  short  joints,  becoming  gradually  broader, 
seventh  forming  part  of  the  club,  first  and  second  joints  very  little  longer 
than  the  following  ones.  Mesosternum  a  little  longer  than  the  first  ventral, 
which  is  longer  than  the  second;  first  suture  broadly  angulated  at  the  mid- 
dle. Thighs  clavate,  very  strongly  toothed.  Prosternum  broadly  emar- 
ginate  in  front,  and  fringed  with  long  yellow  cilite  ;  postocular  lobes  feeble. 
Legs  stout,  thighs  clavate,  sinuate  beneath,  and  armed  with  a  large  tooth  ; 
tibite  suddenly  dilated,  strongly  sinuate  on  the  inner  side  above  the  middle 
and  expanded  at  tip,  corbels  broad,  smooth,  lateral  terminal  hook  very 
large,  ilandibles  quite  different  in  form  from  those  of  the  other  genera, 
flattened,  so  that  the  tooth  which  is  inferior  in  the  other  genera  becomes 
anterior;  the  under  surface  is  slightly  concave,  the  upper  one  feebly  convex, 
and  the  inner  margin  is  obtusely  3-toothed. 

1.  P.  picivorus  Liparuspic.  Germ.,  Ins.  Nov.  311;  Hylohius  pic.  Boh., 
Sch.  Cure,  ii,  340. 

Abundant  under  pine  bark,  in  the  Southern  States,  less  frequent  in  the 
Middle  States. 

HYLOBIUS  Sch. 

The  genus  as  here  restricted,  will  contain  onlj^  those  species  in  which  the 
mandibles  are  normal  in  form,  the  antennte  stout,  with  the  seventh  joint  of 
the  funiculus  broader  and  forming  part  of  the  club  ;  the  ej^es  are  rather 
large  and  transverse  ;  the  anteocular  grooves  are  broad  and.  shallow.  The 
postocular.  lobes  are  large,  and  the  prosternum  deeply  emarginate  in  front 
and  fringed.  The  metasternum  is  as  long  as  the  first  ventral.  The  thighs 
are  clavate,  sinuate  beneath  and  strongly  toothed  ;  tibia;  slender,  sinuate 
on  the  inner  side,  corbels  narrow  ;  terminal  hook  strong.  The  second  and 
fifth  ventral  segments  are  each  as  long  as  the  third  and  fourth  united,  and 
the  first  suture  is  broadly  angulated  at  the  middle. 

1.  H.  pales  Boh.,  Sch.  Cure,  ii,  340;  CurcuUo  pales  Herbst,  Kafer,  vii, 
31;  pi.  99,  f.  10;  Pissodes  macellus  Germ.,  Ins.  Nov.  319  ;  Harris,  Ins.  Inj. 
beg.  ed.  ult.,  70,  (larva). 

Lake  Superior  to  Florida,  abundant  under  pine  bark.  The  head  is  very 
densely,  though  not  coarsely  punctured,  and  is  nearly  opaque  ;  the  protho- 
rax  is  coarsely  and  rugosely  punctured.  The  pubescence  of  the  elytral  spots 
is  sometimes  yellow,  sometimes  gray.     Length  6.8-10.2  mm.  ;  .27-4  inch. 

2.  H.  confusus  Kirby,  Fauna  Bor.  Am.  iv,  196. 

Lake  Superior.  Closely  resembles  the  smaller  varieties  of  the  preceding, 
but  the  head  is  shining,  and  less  densely  and  rather  more  coarsely  punc- 
tured. The  punctures  of  the  prothorax  are  also  less  confluent,  and  the 
surface  less  plicate.  The  pubescence  is  nearly  white.  Length  6.8  ram.  ; 
.27  inch. 

3.  H.  assimilis  Boh.,  Sch.  Cure,  ii,  345. 

Unknown  to  me ;  described  as  larger  than  H.  pales  with  the  head  dis- 


LeConte.] 


HTLOBIINI.  141 


tantly  punctured,  and  the  elytra  without  spots  of  pubescence.  Perhaps 
identical  with  H.  confusus,  in  which  case  the  name  has  precedence. 

4.  H,  stupidus  Boh.,  Sch.  Cure,  ii,  339. 

Georgia.  Unknown  to  me  ;  quite  distinct  by  the  narrow  and  feebly 
punctured  elytral  striae. 

HILIPUS  Germ. 

This  genus,  largely  developed  in  tropical  America,  is  represented  by  a 
single  rare  species  found  in  Georgia  and  Florida.  Except  that  the  spe- 
cies of  this  genus  are  mottled  with  spots  of  very  small  white  scales,  not 
hairs,  and  that  the  seventh  joint  of  the  funiculus  is  not  connected  with  the 
club,  the  differences  between  it  and  Hylobius  are  rather  comparative  than 
absolute. 

The  beak  is  cylindrical,  and  more  curved,  without  anteocular  grooves  ;  the 
antennal  grooves  terminate  at  a  greater  distance  from  the  mouth;  the  eyes, 
postocular  lobes  and  emargination  of  the  prosternum  are  similar.  The 
thighs  are  equally  clavate,  and  sinuate  beneath,  but  the  tooth  is  much 
larger  and  broader ;  the  tibiae  are  compressed,  bent  inwards,  equally 
strongly  armed  with  a  terminal  hook,  but  much  less  sinuate  on  the  inner 
side.  The  first  ventral  suture  is  deeper,  and  more  strongly  angulated  at 
the  middle.  The  sculpture  is  much  coarser  and  sparser,  and  the  spaces  be- 
tween the  large  punctures  are  smooth  and  polished. 

H.  squamosus  (Lee),  Ann.  Lye.  Nat.  Hist.  New  York,  i,  171;  pi. 
xi,  f  101  (Pissodes);  Boh.,  Sch.  Cure,  iii,  161. 

Georgia  and  Florida,  under  pine  bark.  A  beautiful  black  insect,  with  a 
broad  white  lateral  vitta  on  the  prothorax,  and  a  very  irregular  one  on  the 
elytra,  with  many  scattered  small  spots,  densely  clothed  with  depressed, 
very  small,  round,  chalky  white  scales.  Punctures  of  elytra  very  large, 
distant,  interspaces  smooth,  shining,  except  where  covered  with  scales. 
Length  14.4  mm.;  .57  inch. 

EUDOCIMUS  Sch. 

The  beak  in  this  genus  is  cylindrical,  nearly  straight  and  as  long  as  the 
prothorax;  there  are  no  anteocular  grooves;  the  antennal  grooves  reach 
the  middle  of  the  front  margin  of  the  eyes,  which  are  large  and  transverse. 
The  first  and  second  joints  of  the  funicle  are  elongated  and  equal;  3-7 
shorter,  gradually  a  little  wider,  club  elongate  oval,  annulated  pubescent. 
Prosternum  fringed  in  front  and  broadly  emarginate,  postocular  lobes 
broad.  Metasternum  as  long  as  the  first  ventral;  third  and  fourth  ventrals 
together  equal  to  the  second  or  fifth;  first  suture  nearly  straight.  Legs 
slender,  thighs  unarmed,  tibiae  straight,  not  compressed,  armed  with  a 
strong  terminal  hook. 

Eu.  Mannerheimii  Boh.,  Sch.  Cure,  iii,  241. 

New  York  to  Georgia:  rare.  A  conspicuous  species  of  elongate  form, 
clothed  with  small  brown  scales;  the  prothorax  striped  with  pale,  and  the 
elytra  with  conspicuous  pale  spots  on  the  fourth  interspace,  which  is  also 
clouded  with  black.     Length  10.5 — .15  mm.;  .41 — .6  inch. 


142  CURCULIONID^.  [LeOonte. 

PISSODES  Germ. 

The  species  of  this  genus  have  almost  the  appearance  of  small  Hylohius, 
but  differ  remarkably  by  the  following  characters: 

The  beak  is  more  slender,  cylindrical,  without  anteocular  grooves;  eyes 
small,  nearly  round;  antennae  with  the  funiculus  more  slender,  and  the 
greater  part  of  the  club  shining,  sparsely  pubescent,  and  destitute  of  sensi- 
tive surface,  not  distinctly  annulated;  prosternum  not  emarginate  in  front, 
without  postocular  lobes.  Metasternum  as  long  as  the  first  A^entral;  third 
and  fourth  ventrals  together  shorter  than  second;  first  suture  obliterated  at 
the  middle  and  widely  angulated.  Front  coxfe  slightly  separated  by  the 
prosternum;  legs  rather  slender,  thighs  not  toothed,  tibiae  straight,  slightly 
compressed,  terminal  hook  strong,  but  proceeding  rather  from  the  outer 
than  inner  part  of  the  apex  of  the  tibiae;  corbels  wanting. 

I  am  not  satisfied  with  the  position  of  this  genus,  and  am  disposed  to 
believe  that  it  should  be  placed  as  a  separate  tribe.  Thomson  (Skand.  Col. 
vii,  218)  associates  it  with  Trachodes,  but  there  does  not  appear  to  me  any 
resemblance  between  the  two.  The  definition  of  his  tribe  Pissodina  does 
not  at  all  apply  to  Trachodes,  in  which  the  metasternum  is  very  short,  and 
the  club  of  the  antennae  entirely  pubescent  and  sensitive. 

These  insects  live  under  bark  of  pine  trees,  and  are  sometimes  very  inju- 
rious.   There  are  evidently  several  species  in  our  fauna,  but  the  differences 
are  not  very  obvious,  and  it  is  quite  possible  that  a  careful  comparison  with 
foreign  species  might  reduce  the  number  now  recognized  as  distinct. 
Prothorax  broader  than  long,  more  suddenly  narrowed 
in  front,  and  more  strongly  constricted,  slightly  bi- 
sinuate  on  the  sides;  dorsal  carina  distinct;  altern- 
ate interspaces  of  the  elytra  more  elevated 2. 

Prothorax  not  broader  than  long,  more  gradually  nar- 
rowed in  front,  and  feebly  constricted;  broadly 
rounded  on  the  sides,  dorsal  carina  variable 8. 

2.  Elytra  with  a  broad  posterior  transverse  band  of 

yellow  pubescence,  becoming  white  towards  the  su- 
ture; prothorax  less  coarsely  rugosely  punctured.  .  1.  strobi. 

Similarly  colored ;  prothorax  more  coarsely  and  less 
rugosely  punctured;  alternate  interspaces  more  dis- 
tinctly elevated 2.  costatus. 

Prothorax  more  densely,  less  rugosely  punctured,  outer 

strife  of  elytra  less  distinct 3.  fasciatus. 

3.  Hind  angles  of  prothorax  rectangular 4.  affinis. 

"  "  "  obtuse 5.  dubius. 

"  "  rounded 6.  rotundatus. 

1.  P.  strobi  Peck,  Mass.  Agr.  Journ.  1817,  iv,  205,  (BhynchcBnus) ;  Say, 
Cure.  14;  ed.  Lee.  i,  227;  Harris,  Ins.  Inj.  Veg.  ed.  ult.,  72;  Pissodes 
nemorensis  Germ.,  Ins.  Nov.  318. 


LeConte. 


HYLOBnNI.  143 


Lake  Superior  to  Georgia.  I  can  see  no  reason  for  considering  the  two 
names  to  represent  distinct  species,  as  lias  been  done  by  Gemminger  and 
Harold,  and  by  Crotch. 

2.  P.  costatus  Mann.,  Bull.  Mosc.  1852,  ii,  363. 

Alaska  and  Oregon.  A  beautifully  preserved  specimen  from  California, 
which  I  refer  to  this  species  on  account  of  its  form  and  sculpture,  has  the 
sides  of  the  prothorax  clothed  with  snow-white  scales,  and  the  posterior 
band  of  the  elytra  very  broad,  becoming  white  towards  the  suture,  just  as 
in  the  preceding  species.  In  the  other  species  the  scales  seem  to  be  all  yel- 
low, and  the  markings  much  smaller. 

3.  P.  fasciatus,  n.  sp. 

Blackish-brown,  thinly  sprinkled  with  yellowish  hairs  and  small  scales  ; 
beak  strongly  punctured,  slender,  not  carinate  ;  prothorax  not  wider  than 
long,  gradually  narrowed  in  front,  broadly  rounded  on  the  sides,  distinctly 
broadly  constricted  at  tip,  hind  angles  rectangular  ;  disc  densely  and  con- 
fluently  punctured,  obsoletely  carinate,  sides  clothed  with  yellow  scales, 
narrow  dorsal  line  and  four  small  spots  in  the  usual  position  yellowish  ; 
elytra  with  a  broad  band  before  and  another  behind  the  middle  yellowish, 
the  latter  whitish  towards  the  suture  ;  inner  strise  deeply  and  irregularly 
punctured,  outer  ones  less  distinct,  interspaces  densely  rugosely  punctured, 
third  and  fifth  slightly  prominent.     Length  7-9  mm. ;  .28-.  35  inch. 

Two  specimens,  Oregon.  Seems  to  differ  from  P.  strobi  chiefly  by  the 
thorax  being  longer,  less  coarsely  punctured,  and  less  rounded  on  the  sides; 
by  the  beak  being  somewhat  stouter,  and  by  the  elytral  bands  more  trans- 
verse and  less  oblique  towards  the  sides. 

4.  P.  afflnis  Randall,  Bost.  Journ.  Nat.  Hist,  ii,  24. 

Lake  Superior,  Canada,  and  New  Hampshire.  Distinct  from  the  pre- 
ceding species  by  the  prothorax  narrower,  and  less  constricted  in  front  ; 
from  the  two  following  species  by  the  hind  angles  being  rectangular.  The 
disc  of  the  prothorax  is  coarsely  and  somewhat  rugosely  punctured,  much 
as  in  P.  costatus,  but  the  strise  are  composed  of  larger  punctures,  and  the 
interspaces  are  quite  flat.  The  scales  are  all  cream  color,  and  the  posterior 
band  is  narrow  and  imperfect. 

5.  P.  dubius  Randall,  Bost.  Journ.  Nat.  Hist,  ii,  24. 

Same  range  as  the  preceding,  from  the  smallest  specimens  of  which  it 
differs  chiefly  by  the  sides  of  the  prothorax  converging  a  little  near  the 
hind  angles,  which  thus  become  somewhat  obtuse.  There  is  also  some 
difference  in  the  scales  on  the  elytra,  which  in  well-preserved  specimens 
are  more  diffused,  with  the  markings  less  defined. 

6.  P.  rotundatus,  n.  sp. 

This  species  quite  resembles  in  size  and  form  P.  dubius,  except  that  the 
sides  of  the  prothorax  are  more  rounded  behind,  so  that  the  basal  angles 
become  still  more  obtuse  and  rounded.  The  prothorax  is  more  densely 
punctured,  and  the  alternate  interspaces  of  the  elytra  are  slightly  elevated; 


144  CUECULIOIsnD^.  [LeConte. 

tiie  transverse  white  spot  behind  the  middle  is  small,  and  placed  nearer  the 
middle  than  in  the  other  species.     Length  5.7  mm. ;  .225  inch. 
One  specimen,  Lake  Superior. 

Tribe  IV.  CLEONiiiri. 

The  character  which  distinguishes  this  from  all  neighboring  tribes,  is 
that  the  eh'tra  are  less  extended  on  the  flanks  of  the  metathorax  and  abdo- 
men, so  that  the  lateral  angles  of  the  first  ventral  segment  become  visible. 

The  body  is  never  very  stout,  and  frequently  is  almost  linear.  The 
gular  peduncle  is  sometimes  short,  sometimes  long,  emarginate  at  tip  ; 
mentum  large,  flat ;  ligula  feebly  or  not  prominent ;  palpi  much  less  de- 
veloped than  in  HyloMini.  Tibiae  more  or  less  mucronate  at  tip;  articular 
surface  lateral;  corbels  wanting;  claws  connate  at  base,  or  at  least  approxi- 
mate. Antennae  sometimes  feebly  geniculate  ;  joints  of  funicle  graduall}^ 
broader  ;  club  elongate  oval,  annulated,  pubescent  and  sensitive. 

The  other  characters  are  variable.  The  beak  is  either  short  and  thick, 
or  long  and  cylindrical;  the  tarsi  are  dilated  and  spongy  beneath,  with  the 
third  joint  broad  and  bilobed,  or  only  hairy,  with  the  third  joint  shorter 
and  emarginate.  The  first  and  second  ventral  segments  are  long  and  con- 
nate ;  in  the  elongate  species  the  other  segments  are  moderately  long  ;  in 
the  species  with  thick  short  beak  they  are  shorter.  The  antennae  are  in- 
serted at  a  variable  distance  from  the  tip  of  the  beak. 

Sexual  differences  are  not  apparent  in  the  short  beaked  species  ;  in  some 
of  the  elongate  forms  the  beak  is  longer  in  the  female. 

Gradatioual  characters  are  observed  in  the  form  of  the  beak,  antennae, 
tarsi  and  claws,  varjnng  by  almost  insensible  degrees,  so  as  to  render  the 
classification  of  this  tribe  very  difficult.  After  several  efforts,  I  am  only 
able  to  offer  the  following  table  for  the  identification  of  the  genera  I  have 
examined: 

Beak  flat,  stout,  more  or  less  grooA'ed,  somewhat  dilated  at 
tip  ;  prothorax  angulated  on  the  sides  near  the  tip,  then 
suddenly  constricted.  Antennae  rather  stout,  feebly 
geniculated  ;  ventral  segments  3-5  shorter  than  in  the 
subsequent  genera.  Tarsi  usually  not  spongy  beneath, 
in  which  case  the  third  joint  is  emarginate,  not  bilobed...  2. 

Beak  cylindrical,  rather  stout,  not  dilated  at  tip  ;  prothorax 
usually  not  angulated  at  the  side ;  ventral  segments  3-5 
not  so  short;  tarsi  usually  spongy  beneath,  claws  connate 
at  base , 4. 

Beak'  cylindrical,  varying  in  length,  generally  smoother 
than  in  the  preceding  genera;  antennae  less  approximate 
to  the  tip;  prothorax  not  angulated  at  the  sides:  ventral 
segment  3-5  not  very  short ;  tarsi  spongy  beneath,  third 
joint  broad,  bilobed  ;  claws  connate  at  base;  second  joint 
of  funicle  equal  to  first , LIXUS. 


LcContc]  CLEOxmi.  145 

2.  Prosternum  without  spines  in  front  of  the  coxae,  3. 

Prostemum  armed  with  short  spines  in 

front  of  the  00X32 CENTROCLEONUS. 

3.  Beak  strong!}'  carinatc,  third  joint  of  hind 

tarsi  not  spongy  heueath STEPHANOCLEOlSrUS. 

Beak  feebly  carinate,  third  joint  of  hind 
tarsi  broad,  spongy  beneath CLEONOPSIS. 

4.  Hind  tarsi  with  tliird  joint  shorter,  emar- 

ginate,  not  spongy  beneath CLEONASPIS. 

Hind  tarsi  with  third  joint  broader,  bi- 
lobed,  spongy  beneath CLEONUS. 

CENTROCLEONUS  n.  g. 

Body  oblong,  more  robust  than  usual  in  this  tribe,  above  very  coarsely 
sculptured.  Beak  stout,  somewhat  longer  than  the  head,  a  little  wider  at 
tip,  usually  carinate,  and  broadly  bisulcate  above,  tip  not  emarginate; 
antennal  grooves  suddenly  deflexed,  commencing  not  very  near  the  tip. 
Mentum  large,  flat,  gular  peduncle  very  short  and  broad ;  neck  finely  trans- 
versely striate,  with  a  deep  median  groove;  eyes  transverse,  acute  beneath, 
finely  granulated.  Antennae  geniculate,  scape  slender,  equal  to  funiculus, 
Avhicli  has  six  distinct  joints,  first  and  second  nearly  equal,  third  to  sixth 
shorter,  rounded,  seventh  forming  part  of  the  club.  Prothorax  wider  than 
long,  sides  parallel,  suddenly  and  strongly  angulated  near  the  tip,  which  is 
then  strongly  narrowed  and  constricted;  postocular  lobes  broad,  fringed ; 
prosternum  flattened,  with  an  acute  tubercle  in  front  of  each  coxa;  there 
are  also  two  small  prominences  between  the  coxce.  Mesosteruum  shorter 
than  first  ventral;  intercoxal  process  of  abdomen  broad  rounded;  3-5  seg- 
ments together  scarcely  longer  than  second.  Legs  moderate,  terminal 
hooks  of  tibise  small;  tarsi  hairy  but  not  spongj^  beneath;  hind  tarsi  with 
second  joint  a  little  shorter  than  first,  third  one-half  shorter,  deeply  emar- 
ginate; claws  approximate,  not  connate. 

Conspicuous  by  the  form  of  the  prothorax,  and  very  rough  sculpture  of 
upper  surface.  The  species  are  rare,  and  may  be  distinguished  as  follows: 
Elytra  coarsely  punctato-striate 2. 

"      more  finely     "  "     ;  licak  not  carinate 4.  molitor. 

2.  Pubescence  intermixed  with  short  hairs 3. 

"                   "              "    long      "     ;  alternate  in- 
terspaces of  elytra  elevated 1.  pilosus. 

3.  Beak  strongly  carinate ! .". 2.  annularis. 

"     feebly  "       3.  porosus. 

1.  O.  pilosus,  n.  sp. 

Black,  upper  surface  of  beak,  and  above  the  eyes,  sides  of  prothorax, 
and  greater  part  of  elytra  densely  clothed  with  gray  hair,  intermixed  with 
long  erect  yellowish  hairs;  head  and  beak  coarsely  punctured,  the  latter 
with  two  broad  grooves  and  an  obtuse  median  carina;  prothorax  covered 
with  large  vcr^-  deep  fovea?,  sub-carinate  at  the  middle  and  depressed  at  base, 
sides  broadly  subsinuate;  elj'tra  with  rows  of  very  large  punctures,  alter- 

PROC.  A5IER.  PniLOS.  SOC.  XV.  96.  3 


146  CUKCULIOXID^.  [LeConte. 

nate  interspaces  elevated;  two  transverse  denuded  bands  reach  neither  suture 
nor  margin;  beneath  gray  pubescent,  with  blacli  dots.     Length  11.5  mm.; 
.45  inch. 
California:  one  specimen,  given  me  by  Mr.  A.  Murray. 

2.  C.  annularis.   Cleonus  anrj.  Lee.  Col.  Kansas,  p.  18,  pi.  1,  f.  13. 
Kansas:  specimens  in  my  collection  and  in  Dr.  Horn's  ditFer  from  the 

preceding  by  the  hairs  intermixed  with  the  pubescence  being  short;  the 
beak  is  more  strongly  carinate,  the  sides  of  the  prothorax  less  sinuate,  and 
the  alternate  interspaces  of  the  elytra  scarcely  elevated. 

3.  C.  porosus,  n.  sp. 

Black,  clothed  with  grayish  and  yellowish  pubescence,  with  short  hairs 
intermixed;  beak  coarsely  punctured,  with  a  feeble  short  caruia  at  the  mid- 
dle, and  two  short  shallow  grooves  ;  sides  of  prothorax  nearly  straight 
behind  the  postapical  angle;  elytra  with  rows  of  very  large  punctures, 
interspaces  scarcely  unequal;  two  indistinct  darker  transverse  bands.  Length 
11.5  mm.;  .45  inch. 

One  specimen.  Cape  San  Lucas,  Lower  California,  Mr.  Xantus.  The 
elytral  stricE  are  composed  of  larger  and  less  approximate  punctures  than 
in  C.  angtilaris. 

4.  O.  molitor.   Cleonus  molitor  Lee.  Proc.  Acad.  1853,  78. 
California  and  Arizona.      The   pubescence  is  very  dense,    and    scale 

like,  not  mixed  with  hairs,  and  is  very  easily  abraded.  The  sculpture  is 
much  less  coarse  than  in  the  other  species,  and  the  postapical  angles  of  the 
prothorax  are  less  prominent. 

STEPHAN0CLI30NUS  Motsch. 
The  essential  characters  of  this  genus  consist  in  the  prostcrnum  without 
spines  in  front  of  the  coxse,  the  postapical  angles  of  the  prothorax  obtuse 
or  rounded,  not  at  all  prominent  as  in  Centrocleonus ;  the  antennae  are 
stout,  feebly  geniculate;  first  joint  of  funiculus  lougei*,  second  only  equal 
to  the  third,  seventh  forming  part  of  the  club.  Beak  rather  stout,  strongly 
carinate;  tarsi  hairy  beneath,  not  spongy  (except  the  third  joint  of  the 
front  and  middle  pairs);  hind  tarsi  with  first  and  second  joints  elongated, 
third  shorter,  emarginate,  not  bilobed,  claws  connate  at  base. 

Humeri  obliquely  truncate 1.  plumbeus. 

Humeri  rounded 2.  oristatus. 

1.  S.  plumbeus,  n.  sp. 

Black,  thinly  clothed  with  nearly  unifortu  whitish  fine  pubescence,  pro- 
ducing a  leaden  lustre;  beak  stout,  shorter  than  the  prothorax,  strongly 
carinate,  carina  extending  upon  the  head,  but  not  to  the  tip  of  the  beak; 
broadly  sulcate  each  side,  separated  from  the  head  by  a  transverse  con- 
cavity, confluently  and  finely  punctured,  lateral  space  in  front  of  the  eyes 
with  a  few  very  large  punctures.  Prothorax  quadrate,  suddenly  narrowed 
near  the  tip,  and  transversely  impressed  at  the  sides,  postocular  lobes 
scarcely  fringed,  postapical  angles  rounded,  sides  nearly  parallel,  base 
broadly  emarginate  in  two  arcs  of  a  circle,  middle  angle  not  rounded;  disc 


LcConte.] 


CLEOXINI.  147 


finel}^  densely  punctured  with  large  scattered  punctures,  darker  at  the  mid- 
dle than  at  the  sides,  carinate  in  front  of  the  middle  but  impresised  behind. 
Elytra  with  humeri  obliquely  truncate,  base  not  concave,  sides  subsinuate, 
obliquely  prolonged  behind,  surface  densely  finely  punctured,  stritB  com- 
posed of  moderate  sized  punctures,  with  faint  indications  of  two  oblique 
bands,  and  a  small  denuded  polished  spot  near  the  tips,  which  are  separately 
rounded,  or  subacute.     Length  9-11  mm.;   .35-. 45  inch. 

North  shore  of  Lake  Superior ;  New  Mexico.  I  have  inadvertently 
mentioned  this  species  in  the  list  of  Coleoptera  of  Lake  Superior  as  C.  oh- 
liquus,  a  European  species  which  is  quite  different. 

2.  S.  cristatus,  n.  sp. 

Black,  densel}^  finely  punctured,  clothed  with  white  pubescence;  i>eak 
strongly  carinate,  carina  ending  anteriorly  in  a  fovea,  prolonged  backwards 
upon  the  head,  broadly  and  deeply  sulcate  each  side,  lateral  edges  acute, 
well  defined,  upper  surface  sparsely,  sides  more  densely  coarsely  punc- 
tured. Prothorax  of  the  same  form  as  in  the  preceding,  but  the  postocular 
lobes  have  a  short  fringe  of  hair,  the  sides  are  nearly  straight  and  parallel, 
the  base  is  less  emarginate,  and  the  basal  and  medial  angles  are  less  promi- 
nent; the  pubescence  seems  denser  at  the  sides  than  on  the  disc;  sculpture 
as  in  S.  plumbeus.  Elytra  with  stria)  of  smaller  and  more  approximate  punc- 
tures; humeri  not  obliquely  truncate,  but  rounded  and  not  prominent,  sides 
feebly  rounded,  not  subsinuate,  less  distinctly  obliquely  prolonged  near  the 
tips  which  are  conjointly,  not  separately  rouruded;  traces  are  seen  of  two 
dark  oblique  bands.     Length  13  mm. ;  .50  inch. 

One  specimen,  Utah,  Dr.  Horn.  Easily  known  by  the  well  defined 
lateral  edge  of  the  beak,  and  the  different  form  of  the  elytra.  The  pubes- 
cence is  less  fine  and  more  dense  than  in  S.  plumbeus. 

CLEONOPSIS  n.  g. 

I  have  been  obliged  to  separate  as  a  distinct  genus,  one  species  found  in 
Texas  and  Colorado,  which  differs  from  CZeo?iM.s  by  stouter  and  flatter  beak,, 
the  form  and  method  of  coloration,  and  by  the  joints  of  the  funiculus  of 
the  antennas,  2-6  being  more  closely  united.  It  differs  from  Steplianode- 
onus  hy  the  hind  tarsi  broader,  the  third  joint  not  shorter,  deeply  bilobed,. 
with  the  lobes  spongy  beneath.  I  caanot  identify  it  with  any  of  the 
numerous  genera  mentioned  by  Mr.  Chevrolat,  though  it  would  quite 
possibly  enter  into  one  of  them'. 

1.  C.  pulvereus.   Cleonus  pulv.  Lee.  Col.  Kansas  and  New  Mexico,  18.. 

Three  specimens.  A  rather  stout  species,  proportioned  somewhat  like 
C.  trioiUahis,  but  with  the  prothorax  suddenly  tubulate  in  front,  with  a 
very  broad  discoidal  black  stripe,  wider  behind,  and  three  oblique  dark 
spots  on  each  elytron.  The  beak  is  a  little  more  than  twdce  as  long  as  wide,, 
very  coarsely  punctured,  feebly  carinate,  with  slight  traces  each  side  of  two 
grooves  ;  the  second  joint  of  the  funiculus  is  shorter  than  the  first,  but 
somewhat  longer  than  the  third.     The  basal  margin  of  the  elytra  is  nuicii 


118  CURCULIONID^. 


[LeConte. 


thickened  and  elevated,  the  base  just  beliind  the  margin  is  impressed.  The 
scutellum  is  quite  evident,  and  rather  narrow.  The  base  of  the  protliorax 
is  obliquely  emarginate  each  side,  and  the  middle  lobe  longer  than  usual, 
with  the  angle  rounded. 

CLEONUS  Sell. 

Although  the  following  species  differ  in  minor  details  of  structure,  which 
by  some  entomologists  are  regarded  as  of  generic  value,  there  is  such  a 
general  resemblance  in  appearance  and  in  the  more  important  characters, 
that  it  seems  more  natural  to  regard  them  as  constituting  one  genus.  I  am 
the  more  confirmed  in  this  belief  from  the  impossibility  of  placing  them 
with  any  satisfaction  in  the  groups  established  on  the  species  of  the  other 
continent,  themselves  very  indefinite  in  extent. 

I  would  therefore  include  under  this  head  all  the  species  in  our  fauna  in 
which  the  bealris  stouter  than  in  Lixus,  but  not  dilated  at  txp  ;  the  gular 
peduncle  is  not  so  broad  and  short  as  in  the  preceding  genera,  but  is  shorter 
than  in  Lixus;  there  is  a  difference  between  the  species  in  this  character, 
it  being  longer  in  proportion  to  the  increasing  slenderness  of  the  beak. 
The  front  and  middle  tarsi  are  broad,  the  third  joint  at  least  spongy  and 
bilobed  ;  the  hind  tarsi  are  hairy  beneath  in  the  first  division,  but  broad 
and  spongy  in  the  second.  The  general  tendenc}"  of  the  pubescence  is  to 
form  longitudinal  stripes,  and  not  transverse  or  oblique  bands.  The  body 
is  elongated,  resembling  Lixus. 

Our  species  maj^  be  thus  tabulated  : 

A.  Hind  tarsi  with   third  joint  incompletely    spongy    beneath,  deeply 
emarginate,  feebly  biloljed.     Apleukus  Chevr. 

Protliorax  gradually  narrowed  towards  the  tip...  2. 

"  suddenly   narrowed    towards   the    tip ; 

sides  sub-sinuate 1.  collaris. 

2.  Beak  moderately  strongly  carinate  ;    front  not 

impressed 3. 

Beak  less  strongly  carinate  ;  front  transversely 

impressed 4. 

•-3..  Bieak  feebly  carinate;  front  not  impressed;  elytra 
with  broad  black  sutural  and  discoidal  vittfe, 

•speckled  with  white 2.  trivittatus. 

Elytra  uniformly  clothed  with  yellowish  inibcs- 
cence 3.  inornatus. 

4.  Elytral  vittte  irregular 4.  frontalis. 

"  "      narrow,  regular 5.  virgatus. 

5.  Elytra  pubescent  with  the  first,  second,  sixth 

and  seventh  interspaces  darker 6.  quadrilineatue. 

B.  Ilind  tarsi  with  third  joint  spongy,  broad,  deeply  bilobed. 
Protliorax  carinate  before  the  middle 3. 

"         not  carinate  before  the  middle 2. 


LeOonte.] 


CLEONINI.  149 


2.  Pubescence  short,  pruinose 7.  canescens. 

"           longer  and  coarser 8.  puberulus. 

3.  Protliorax  sparsely  coarsely  punctured 9.  carinicollis. 

"          cribrate  ;  el3'tral  punctures  approximate  10.  vittatus. 

Protliorax  sparsely  cribrate;   punctures  distant  11.  sparsus. 

1.  C.  collaris,  n.  sp. 

Black,  thickly  clothed  with  short  dirt-colored  pubescence  ;  beak  not  di- 
lated at  tip,  sides  suddenly  deflexed,  nearly  fiat  above,  with  a  very  tine 
slightly  elevated  line,  gradually  becoming  impressed  in  front,  and  not 
reaching  the  tip,  ending  behind  in  a  small  frontal  fovea.  Protliorax  Avider 
than  long,  sides  irregularly  rounded,  bent  obliquely  inwards  near  the  base, 
suddenly  I'ounded  and  narrowed  near  the  apex,  which  is  bisinuate,  and 
strongly  impressed  at  the  sides  ;  disc  sparsely  cribrate,  obsoletely  carinate 
before  the  middle,  very  deeply  excavated  behind,  sides  with  a  curved  im- 
pression which  makes  the  outline  sinuate  when  viewed  from  above.  Ely- 
tra each  with  a  deep  rounded  sub-basal  impression,  and  an  oblique  lateral  one 
at  about  one-fourth  of  the  length  ;  strice  composed  of  large  somewhat  dis- 
tant punctures,  which  appear  somewhat  unequal  in  size,  as  they  are  more 
or  less  covered  with  the  pubescence  ;  the  first  and  marginal  interspaces 
seem  to  be  tesselated  with  darker.  Beneath  clothed  with  dirt-colored  pu- 
bescence and  speckled  with  black.     Length  11  mm. ;  .45  inch. 

One  specimen  from  Colorado.  Dr.  Horn.  The  front  and  middle  tarsi 
are  spongy  beneath,  with  the  third  joint  broad  and  bilobed  ;  the  hind  tarsi 
are  not  spongy,  the  third  joint  is  shorter  than  the  second,  but  scarcely 
wider,  and  deeply  emarginate  rather  than  bilobed. 

2.  C.  trivittatus  Say,  Cure.  10;  ed.  Lee.  i,  270;  Germ.,  Sch.  Cure, 
ii,  222. 

Colorado,  rare. 

3.  C.inornatus.  u.  sp. 

Black,  head  densely  punctured  with  a  few  coarse  punctures,  beak  coarsely 
punctured,  the  latter  distinctly  carinate,  and  marked  with  two  vittse  of 
pale-brown  hair ;  protliorax  longer  than  wide,  gradually  narrowed  from 
the  base  forwards,  feebly  rounded  on  the  sides,  not  constricted  and  but 
feebly  impressed  on  the  sides  towards  the  tip  ;  base  bisinuate,  middle  lobe 
broadly  rounded  ;  disc  denselj^  punctured,  sparsely  and  very  coarselj^ 
punctured,  broadly  but  not  deeply  foveate-atbase,  distinctlj'  carinate  in  front 
of  the  impression,  with  four  stripes  of  pale-brown  hair,  the  discoidal  ones 
being  sinuate,  the  outer  ones  lateral.  Elytra  without  imiiression,  humeri 
rounded,  sides  parallel,  strise  composed  in  front  of  rather  distant  punctures, 
but  becoming  definitely  impressed  toward  the  tip  ;  densely  clothed  with 
rather  coarse  pale  brown  pubescence,  which  is  a  little  thinner  on  the  sec- 
ond and  eighth  interspaces.  Beneath  similarly  pubescent,  speckled  with 
black.     Length  13.5  mm. ;  .53  inch. 

One  specimen.  Owen's  Valley,  California,  Dr.  Horn.     The  hind  tarsi  are 


150  CURCULIOXID^E. 


[LeConte. 


rather  wider  than  iu  C.  coUaris,  and  the  third  joint  is  more  distinctly  bi- 
lobed,  with  a  portion  of  each  lobe  sjjongy  beneath.  The  same  character  is 
seen  in  C.  tmittatus. 

4.  O.  frontalis,  n.  sp. 

Black,  densely  punctured,  head  sparsely,  beak  coarsely  punctured,  the 
latter  uniformly  pubescent  with  yellowish-gray  hair,  cylindrical,  obsolotely 
carinate,  broadly  concave  transversely  at  base  ;  prothorax  not  longer  than 
wide,  gradually  narrowed  and  feebly  rounded  from  the  base,  which  is  bi- 
sinuate,  with  the  middle  lobe  acute,  tip -not  constricted,  feebly  impressed 
at  the  sides  ;  disc  with  four  broad  stripes  of  pubescence,  and  with  scattered 
very  coarse  punctures,  not  distinctly  carinate,  basal  impi'essions  oval,  not 
very  deep.  Elytra  with  three  broad  basal  impressions,  humeri  rounded, 
sides  parallel,  striae  composed  of  large  distant  punctures  ;  densely  clothed 
with  moderately  fine  yellowish -gray  pubescence,  Avith  a  broad  sutural  and 
another  discoidal  stripe  more  thinly  pubescent,  speckled  with  denser  spots. 
Beneath  similarly  pubescent,  thickly  speckled  with  black.  Length  9  mm. ; 
.86  inch. 

"Wyoming  Territory,  Dr.  W.  A.  Hammond;  Nevada,  Dr.  Horn.  Smal- 
ler and  more  slender  than  G.  trwittatws,  and  quite  distinct  by  the  above 
characters.  The  third  joint  of  the  hind  tarsi  is  rather  bilobed  than  emar- 
ginate,  and  is  spongy  at  the  tip  of  the  lobes.  The  frontal  concavity  is 
broad  and  vague,  and  separates  the  head  from  the  beak. 

One  specimen  has  the  beak  distinctly  carinate,  and  the  frontal  im]n'ession 
much  deeper,  but  does  not  otherwise  differ. 

5.  O.  virgatus,  n.  sp. 

Black,  densely  punctured,  head  sparsely,  beak  coarsely  punctured,  tliinly 
pubescent,  sub-carinate,  with  a  broad  transverse  frontal  impression  ;  pro- 
thorax  a  little  longer  than  wide,  4-vittate  with  pubescence,  gradually  nar- 
rowed from  the  base,  scarcely  rounded  on  the  sides,  very  coarsely  cribrate, 
finely  carinate,  basal  impression  veiy  feeble,  base  deeply  bisinuate,  middle 
lobe  acute.  Elytra  without  impressions,  striaj  composed  of  large  equal  not 
distant  punctures,  tolerably  densely  pubescent,  with  the  second,  sixth,  and 
eighth  interspaces  thinly  pubescent,  and  therefore  darker.  Beneath  rather 
coarsely  pubescent  and  speckled  with  black.     Length  7  mm.;  .28  inch. 

One  specimen,  Owen's  Valley,  California,  Dr.  Horn.  The  third  joint  of 
the  hind  tarsi  is  bilobed,  and  spongy  beneath,  but  is  shorter  than  the  second 
joint. 

6.  C.  quadrilineatus.  Apleitrusqjuidr.  Chevrolat,  Mem.  Acad.  Liege, 
2d  ser.  v.  80. 

Texas.  In  this  species  the  pubescence  is  fine,  the  beak  stouter  and  shorter, 
feebly  carinate,  with  a  small  frontal  fovea,  the  upper  surface  densely  luibes- 
cent,  the  sides  black.  The  prothorax  very  coarsely  and  sparsely  punctured, 
the  interspaces  finely  punctulate;  the  disc  is  dark,  Avith  the  sides  and  two  nar- 
row lines  converging  in  front  cinereous;  base  broadly  impressed  at  the  mid- 
dle, oblique  each  side,  not  acute  at  thescutellum.   Elytra  rather  finely  punc- 


LeO'onte.] 


CLEONINI.  151 


tato-striate,  with  two  cinereous  vittas  occupying  the  third,  fourth,  and  fifth, 
and  three  outer  interspaces,  apices  separately  rounded,  and  sliglitly  acumi- 
nate. Hind  tarsi  with  tlie  third  joint  not  bi-oader  than  the  second,  bilobed, 
not  spongy  beueatli.     Length  8.75-11.8  mm. ;  .35-. 46  inch. 

7.  O.  canescens,  n.  sp. 

Black,  clothed  with  extremelj^  fine  and  short,  almost  pruinose  pubescence. 
Beak'  very  stout,  slightly  thickened  at  tip,  shorter  than  the  prothorax, 
coarsely  punctured,  strongly  carinate;  carina  abbreviated  one-fourth  from 
the  tip,  which  is  not  emarginate,  ending  behind  in  a  frontal  puncture. 
Prothorax  a  little  wider  than  long,  sides  nearly  parallel,  suddenly  rounded 
and  narrowed  at  the  tip,  which  is  feebly  impressed  at  the  sides,  base  broadly 
bisinuate,  middle  lobe  feebly  angulated,  basal  angles  obtuse  and  rounded, 
disc  densely  punctulate,  sparsely  and  very  coarsely  punctured,  basal  con- 
cavity deep,  extending  nearly  to  the  middle.  Elytra  with  rounded  humeri, 
a  little  wider  than  the  prothorax,  sides  parallel,  then  obliquely  narrowed, 
tip  obtusely  rounded,  semicircularly  deeply  impressed  around  the  scutel- 
lum,  which  is  small  and  deeply  placed,  front  end  of  suture  elevated,  form- 
ing a  small  cusp ;  stri*  composed  of  large  distant  punctures,  interspaces 
flat,  scarcely-  wider  than  the  space  between  the  individual  punctures  of  the 
rows,  slightly  mottled  with  dots  of  denser  whitish  pubescence,  and  spots 
of  a  darker  color.  Beneath  more  coarsely  and  densely  gray-pubescent, 
with  large  black  punctures.  Hind  tarsi  longer  than  the  others,  first  joint 
longer  than  the  second,  third  broader,  bilobed,  with  the  lobes  spongy  be- 
neath, broadly  grooved  at  the  middle.     Length  10  mm. ;  .40  inch. 

Colorado.  Four  specimens  given  me  by  Mr.  Ulke.  The  beak  is  thicker 
than  in  the  neighboring  species,  and  it  is  otherwise  easily  recognized. 

8.  C  puberulus,  n.  sp. 

Black,  clothed  with  coarse  pale  gray  pubescence.  Beak  coarsely  punc 
tured,  rather  stout,  not  dilated  at  tip,  sides  parallel,  upper  surface  not  very 
convex,  scarcely  carinate,  front  feebly  concave  transversely.  Prothorax 
not  longer  than  wide  at  base,  gradually  narrowed  in  front,  feebly  con. 
stricted  at  the  tip,  base  broadly  bisinuate,  middle  lobe  broadly  rounded, 
disc  with  a  few  large  scattered  punctures,  black,  with  the  sides  and  two 
broad  converging  vittse,  which  almost  meet  at  the  tip,  gray  ;  basal  excava- 
tion very  large  and  deep,  extending  beyond  the  middle.  Elytra  wider  than 
the  prothorax,  broadly  impressed  around  the  scutellum,  and  flattened 
towards  the  humeri,  which  are  rounded,  sides  parallel,  then  obliquely  nar- 
rowed, tips  obtusely  rounded,  sub-acuminate ;  striae  composed  of  large 
close  set  punctures,  interspaces  slightly  convex,  first,  second,  and  seventh 
darker,  and  mottled  with  a  few  small  spots.  Beneath  with  large  scattered 
black  punctures  ;  hind  tarsi  with  first  joint  not  longer  than  second,  third 
joint  slightly  wider,  bilobed,  lobes  spongy  beneath.  Length  8-9.5  mm. ; 
.32-.  375  inch. 

Nevada  ;   several  specimens. 


152  CURCULIOlSriDJE. 


[LeConte. 


9.  O.  carinicollis,  n.  sp. 

Black,  pul^escence  short  and  dense,  gray.  Beak  shorter  than  the  pro- 
thorax,  stout,  a  little  thicker  at  the  tip,  coarsely  punctured,  not  strongly 
carinate  for  more  than  half  its  length,  carina  terminating  at  each  end 
in  a  puncture,  with  a  broad  groove  each  side  extending  from  the  tip  about 
one-fourth  the  length.  Prothorax  longer  than  wide,  narrowed  in  front, 
sides  broadly  rounded,  base  oblique,  broadly  angulated  and  rounded  at  the 
middle,  densely  punctulate,  sparsely  and  irregularly  coarsely  ]ninctured, 
basal  excavation  feeble,  V-shaped,  medial  carina  strong,  extending  from 
tip  nearly  to  base.  Elytra  a  little  wider  than  the  prothorax,  broadly  im- 
pressed around  the  scutellum  and  also  near  the  humeri,  which  are  oblique 
and  less  rounded  than  usual,  sides  straight,  then  obliquely  narrowed,  tip 
obtusely  rounded,  not  acuminate  ;  striae  composed  of  deep  separate,  but 
not  very  distant  punctures,  tirst  and  second,  sixth,  seventh,  and  eighth  in- 
terspaces less  mottled  with  pubescence  than  the  others.  Hind  tarsi  with 
the  first  joint  longer  and  narrower  than  the  second,  third  wider,  broadly 
bilobed,  all  of  them  spongy  beneath,  with  a  narrow  median  groove.  Length 
13.5  mm. ;  .53  inch. 

One  specimen  collected  by  me  in  Colorado.  This  species  is  of  nearly  the 
same  form  as  C.  trivittatus,  but  the  elytra  are  more  obliquely  narrowed 
n-ear  the  tip,  and  the  other  characters  are  very  different.  The  hair  seems 
to  be  abraded  from  the  head  and  prothorax.  The  scutellum  is  narrow  but 
more  obvious  in  this  than  in  the  other  species. 

10.  C.  vittatus  Kirby,  Fauna  Bor.  Am.  iv,  199. 

Black,  clothed  with  very  fine  short  pruinose  pubescence  ;  beak  stout,  a 
little  wider  at  tip,  feebly  carinate  for  more  than  half  its  length,  with  a 
broad  frontal  concavity,  densely  punctured  above,  sparsely  and  more 
coarsely  at  the  sides.  Prothoi-ax  longer  than  wide,  sides  nearly  parallel, 
suddenly  rounded  and  narrowed  near  the  tip,  base  emarginate  each  side, 
middle  lobe  prominent,  rounded,  side  angles  acute;  disc  densely  punctured 
and  cribrate,  basal  excavation  narrow,  deep,  medial  carina  distinct,  ex- 
tending from  the  tip  to  the  excavation;  sides  and  tM^o  dorsal  vittie  which 
are  broad  at  base  and  narrow  in  front,  pubescent.  Elytra  with  rows  of 
deep,  rather  approximate  punctures,  interspaces  flat,  third  and  seventh  less 
pubescent,  and  therefore  darker;  base  flattened  around  the  scutellum,  and 
again  near  the  humeri,  which  are  rounded  ;  sides  parallel,  then  obliquely 
narrowed,  tips  obtusely  rounded.  Hind  tarsi  with  the  first  joint  a  little 
longer,  second  and  third  spongy  beneath,  the  latter  broader  and  bilobed. 
Length  8  mm. ;  .32  inch. 

One  specimen  from  Oregon,  and  two  from  California. 

11.  O.  sparsus,  n.  sp. 

Black,  pubescence  less  fine,  yellowish-gray.  Beak  cylindrical,  not  very 
stout,  not  wider  at  tip,  punctured,  scarcely  carinate,  with  a  broad  frontal 
impression.  Prothorax  a  little  longer  than  wide,  very  slightly  narrowed  in 
front  except  near  the  tip,  where  it  is  suddenly  rounded  and  narrowed  and 


LeConte.] 


CLEo:t^iNi.  153 


slightly  tubulate,  base  strongly  emarginate  each  side,  middle  lobe  rounded, 
side  angles  acute  ;  disc  punctulate  with  a  few  very  large  scattered  punc- 
tures ;  medial  carina  distinct,  basal  excavation  narrow,  deep;  sides  and 
broad  dorsal  vittse  becoming  narrower  in  front,  pubescent.  Elytra  as  in 
the  preceding;  except  that  the  striae  are  composed  of  distant  punctures;  the 
second  and  sixth  interspaces  are  less  pubescent  and  darker.  Hind  tarsi  as 
in  C.  vittatus.     Length  6.5  mm.;  .25  inch. 

One  specimen  from  Colorado,  in  the  collection  of  Dr.  Horn. 

CLEONASPIS  n.  g. 

C.  lutulentus  differs  from  Cleonus  by  the  hind  tarsi  being  narrow,  with 
the  first  joint  longer  than  the  second,  and  the  third  evidently  shorter, 
not  wider,  and  emarginate,  not  bilobed,  and  not  spongy  beneath.  The 
beak  is  cylindrical,  rather  stout,  a  little  shorter  than  the  prothorax,  and 
not  at  all  carinate.  The  prothorax  is  a  little  longer  than  wide,  slightly  and 
gradually  narrowed  in  front,  feebly  constricted  at  the  apex  ;  the  base  is 
oblique  and  very  feebly  emarginate  each  side,  with  the  middle  lobe  obtuse, 
scarcely  prominent;  the  side  angles  are  acute;  the  disc  sparsely,  coarsely 
punctured,  obso'etely  carinate,  and  the  basal  excavation  is  hardly  percepti- 
ble. The  elytra  are  transversely  impressed  at  base,  the  humeri  are  not 
rounded,  the  sides  are  straight,  and  then  almost  regularly  rounded  to  the 
tip;  uniformly  pubescent ;  the  strise  are  composed  of  large,  rather  approx- 
imate punctures.  The  scutellum  is  not  depressed,  triangular,  longer  than 
wide.  The  antennte  are  more  slender  than  in  Cleonus,  with  the  first  joint 
of  the  funiculus  longer  than  the  second,  which  is  equal  to  the  third;  joints 
2-6  rather  closely  connected.  The  antennal  grooves  are  not  confluent 
below,  or  I  should  place  this  species  in  Mecaspis. 

1.  O.  lutulentus.    Cleonus  kit.  Lee.  Col.  Kans.  18. 

Two  specimens.  New  Mexico.  The  pubescence  is  of  a  uniform  dirty 
brown,  except  that  there  is  a  slightly  darker  broad  dorsal  prothoracic 
stripe,  becoming  broader  towards  the  base. 

LIXUS  Fabr. 

The  species  of  this  genus  are  generally  more  slender  than  those  of 
Cleonus,  though  not  always.  The  tarsi  ai'e  broad  and  spongy  beneath, 
with  the  third  joint  deeply  bilobed.  The  beak  is  cylindrical,  not  thickened 
at  tip,  usually  slender,  except  in  L.  pleuralis  and  texanus,  and  not  cari- 
nated,  except  in  L.  pleuralis  and  sylvius.  The  antennal  grooves  commence 
at  some  distance  from  the  tip  of  the  beak.  The  antennae,  except  in  L.  pleu- 
ralis and  texanus  are  slender,  with  the  first  joint  of  the  funiculu"^  thicker, 
and  the  second  as  long  as  the  two  following  united  ;  in  those  two  the  funi- 
culus is  less  elongated,  less  slender,  and  the  second  joint  is  somewhat  less 
elongated. 

The  species  are  numerous  and  difficult  to  distinguish;  they  are  covered 
with  a  pollinose  yellowish  powder  which  is  easily  rubljed  off,  and  in  addi- 
tion, some  of  them  are  pubescent.     In  several  species  the  apices  of  the 

PROC.  AMER.  PHILOS.  80C.  XV.  96.  T 


154 


CUKCULIONID^. 


[LeConte. 


elytra  are   prolonged   into  an  acute  spine,    an.l  the   beak  of  the   (^   is 
frequently  shorter  and  stouter  than  in  the  9  • 


A.  Beak  rather  stout,  subcarinate 2 . 

B.  "          "          "      not  carinate 3. 

O.      "      more  slender,  not  carinate,  except  in  syieiMs  4. 

2.  Basal  excavation  of  prothorax  deep;  surface  above 

thinly  clothed  with  gray  pubescence  ;  sides  of 
prothorax,    elytra   and    under  surface   densely 

white  pubescent 1.  pleuralis. 

3.  Basal  excavation  of  prothorax  broad,  not  deep, 

surface  dull,  finely  pubescent 2.  texanus. 

4.  Antenuje  moderately  slender,  first  joint  of  funicle 

stouter  than  second 5. 

Antennae  longer,  more  slender,  first  and  second 
joints  of  funicle  equal,  each  as  long  as  the  four 

following  united 17. 

5.  Tips  of  elytra  prolonged,  pubescence  pruinose...  6. 

"              "      not  prolonged 9. 

6.  Body  very  elongated 7. 

"      less  elongated  ;   pubescence  less  fine,    gray  8. 

7.  Pubescence  gray,  very  fine 3.  rubellus. 

"            yellowish,  denser • 4.  auctus. 

8.  Tips  of  elytra  long 5.  caiidifer. 

"             "      very  short ;  prothorax  asperate 6.  asper. 

9.  Beak  strongly,  though  not  coarsely  punctured. ...  10. 

"    finely,  densely  punctulate 12. 

"    sparsely  punctulate  or  nearly  smooth  ;  an- 
tennaj  inserted  about  the  middle  of  the  length; 

basal  concavity  of  prothorax  feeble 15. 

10.  Beak  obsoletely  carinate 11. 

"    distinctly         "       7.  sylvius. 

11.  Prothorax  with  shallower  punctures   8.  punctinasus. 

"             "    few  deep          "        (smaller) 9.  parous. 

13.  Antenna)  inserted  ^-\  from  the  tip  13. 

•'  "       near    the   tip,    prothorax    not 

rounded  on  the  sides 10.  terminalis. 

13.  Prothorax  shorter,   rounded  and  sub-sinuate  on 

the  sides 14. 

Prothorax  long,  not  rounded  on  the  sides 11.  rectus. 

14.  Body  long,  elytral  impressions  not  deep 12.  mucidus. 

"        "        "               "         deep 13.  concavus. 

"     shorter  and  stouter  than  usual 14.  musculus. 

15.  Elytra  conjointly  rounded  at  tip 16. 

"      sub-acuminate  at  tip 15.  perforatus. 

16.  Prothorax  with  sides  rounded  in  front 16.  scrobicoUis. 


LsConte.  I 


CLEONINI.  155 


Prothorax   with  sides  feebly  rounded  in  front ; 

disc  channeled  for  two-thirds  the  length 17.  placiclus, 

Prothorax  more  strongly  cribrate 18.  laesicoUis. 

17.  Antennaj  inserted  at  the  middle  of  the  beak  in  9  ; 

about  one-third  from  tip  in  (j^;  large,  slender, 
rather  shining,  thinly  and  flnely  pubescent 19.  macer. 

1.  L.  pleuralis  Lee,  Pr.  Ac.  Nat.  Sc.  Pliila.  1858,  78. 
Arizona  and  Lower  California. 

The  specimens  from  Cape  San  Lucas  are  more  pul)escent,  and  in  some 
individuals  the  pubescence  is  a  little  mottled  on  the  elytra.  It  is  perhaps 
L.  modest  us  Mann.  Bull.  Mosc.  1843,  291  ;  L.  calif ornkus  Motsch.  Bull. 
Mosc.  1845,  378. 

2.  L.  texanus,  n.  sp. 

Black,  thinly  clothed  with  gray  or  yellowish-gray  hair,  denser  towards 
the  sides,  head  and  beak  sparsely  coarsely  punctured,  the  latter  stout, 
shorter  than  the  prothorax,  feebly  carinate  for  half  the  length  ;  antennae 
inserted  near  the  tip,  not  slender,  first  and  second  joints  of  funiculus  equal, 
each  as  long  as  the  two  following.  Prothorax  scarcely  longer  than  wide, 
graduallj^  narrowed  in  front,  broadly  rounded  on  the  sides,  not  constricted 
at  tip,  covered  with  large,  not  very  deep  punctures,  basal  excavation  feeble. 
Elytra  wider  behind  the  base  than  the  prothorax,  liumeri  rounded,  sides 
parallel,  conjointly  rounded  at  tip,  striae  composed  of  large  not  very  distant 
punctures.  Thighs  slender,  tarsi  with  the  last  joint  as  long  as  the  others 
united.     Length  8-10.3  mm. ;  .32-. 40  inch. 

Two  specimens  from  Texas  ;  Mr.  A.  Salle. 

3.  L,  rubellus  Randall,  Bost.  Journ.  Nat.  Hist,  ii,  41. 
Brownisli-black,  thinly  clothed  with  very  short,   fine  gray  pubescence  ; 

long,  slender.  Beak  somewhat  shorter  than  the  prothorax,  densely,  finely 
punctured,  with  a  few  larger  punctures  intermixed  ;  obsoletely  carinate, 
Avitli  a  large  frontal  puncture.  Antenna?  inserted  near  the  tip  of  the  beak. 
Prothorax  longer  than  wide,  gradually  narrowed  from  base  to  tip,  not  con- 
stricted, sides  nearly  straight,  base  slightly  oblique  each  side,  medial  angle 
very  obtuse,  not  rounded;  surface  rugosely  punctulate,  with  a  few  shallow 
punctures  intermixed,  excavation  shallow,  extending  from  base  nearly  to 
the  tip.  Elytra  finely  rugosely  punctulate,  with  striie  composed  of  not 
very  distant  punctures,  tips  prolonged,  divergent,  not  acute.  Legs  brown, 
thighs  slender.     Length  8  mm, ;  .33  inch. 

One  specimen,  Wisconsin.  Mr.  Randall's  specimen  measured  .45  inch 
from  tip  of  beak,  and  was  found  in  Massachusetts. 

4.  L.  auctus  Lee,  Pac.  R.  R.  Expl.  and  Surv.  Insects,  p.  57. 

One  9  specimen,  Oregon.  Larger  than  the  preceding,  with  the  beak 
more  slender,  and  the  antenme  inserted  about  one-fourth  from  the  tip, 
(probably  sexual  characters);  there  is  a  well-marked  frontal  puncture,  and 


156  CURCULIOXID.E. 


[Ler'onte. 


another  between  the  insertions  of  the  antennre.  The  form  and  sculpture 
are  similar  in  the  two  species,  but  the  pubescence  is  much  more  dense  in 
this  one. 

5.  L.  caudifer,  n.  sp. 

Rather  stout,  black,  densely  clothed  with  fine  short  gray  pubescence. 
Beak  slender,  not  as  long  as  the  prothorax,  nearly  smooth,  finely 
pubescent  at  base,  naked  at  the  tip.  Antennae  inserted  about  one- 
fourth  from  the  tip;  frontal  fovea  elongate.  Prothorax  a  little  wider  than 
long  at  the  base,  gradually  much  narrowed  in  front  and  not  constricted, 
sides  slightly  rounded,  base  feebly  emarginate  each  side,  middle  angle 
prominent,  acute;  dorsal  excavation  large,  triangular,  channeled,  surface 
densely  punctulate,  with  scattered  shallow  punctures.  Elytra  a  little  wider 
behhid  the  base  ;  medial  impression  broad,  not  deep  ;  stride  composed  of 
rather  large  distant  punctures,  tips  prolonged,  not  divergent,  but  parallel. 
Thighs  slender.     Length  9.7-14  mm.;  .38-. 55  inch. 

(J^.  Beak  less  slender,  uniformly  pul)escent,  a  little  broader  at  tip,  and 
slightly  flattened. 

9.  Beak  a  little  narrower,  smooth,  and  naked  at  tip. 

Three  specimens,  Illinois  ;  found  also  in  British  Columbia. 

6.  L.  asper,  n.  sp. 

Rather  stout,  black,  without  lustre,  clothed  with  fine  gray  pubescence. 
Beak  as  long  as  the  prothorax,  slender,  densely  punctured,  more  finely 
towards  the  tip  ;  antennae  inserted  about  one-third  from  the  tip,  frontal 
fovea  distinct.  Prothorax  scarcely  wider  at  base  than  long,  gradually  much, 
narrowed  in  front,  feebly  constricted,  sides  slightly  rounded,  base 
feebly  emarginate  each  side,  middle  angle  broad  and  rounded;  surface 
densely  punctulate,  with  scattered  large  partly  elevated  punctures,  dorsal 
excavation  large,  triangular,  rather  deep,  impressed  at  the  middle  of  the 
base.  Elytra  wider  than  the  prothorax,  impressions  wide  and  tolerably 
deep,  strife  composed  of  approximate  punctures,  tips  separately  acuminate, 
though  scarcely  prolonged.  Legs  as  in  the  preceding  species.  Length  11.3 
mm. ;  .45  inch. 

Three  9.  and  one  (^  ;  Owen's  Valley,  Cal.,  Dr.  Horn.  Quite  distinct 
by  the  rough,  partly  elevated  punctuation  of  the  prothorax.  The  beak  in 
the  rf  is  less  slender,  and  the  antennae  are  one-fourth  from  the  tip  ;  in  the 
9  the  apical  part  is  longer,  so  that  they  are  inserted  at  one-third  the  length 
from  the  tip  ;  it  also  appears  very  obsoletely  carinate  in  the  latter  sex  from 
the  front  to  near  the  insertion  of  the  anteunse. 

7.  L.  Sylvius  Boh.,  Sch.  Cure,  vii,  430. 

One  cT  Pennsylvania;  coll.  Horn.  I  refer  to  this  species  a  single  speci- 
men, in  which  the  body  is  black,  shining,  thinly  clothed  with  fine  cinereous 
pubescence,  the  beak  rather  stout,  as  long  as  the  prothorax,  strongly  punc- 
tured, feebly  but  distinctly  carinate  from  the  frontal  puncture  to  the  inser- 
tion of  the  antennse  ;  the  prothorax  punctulate  and  coarsely  punctured, 
with  a  small  deep  impression  at  the  base;  not  longer  than  wide,  nar- 


LeConte  ] 


CLEONTNI.  157 


rowed  in  front,  feebly  rounded  on  the  sides,  medial  basal  angle  obtuse,  not 
rounded.  Elytra  a  little  wider  than  the  prothorax,  transversely  inijjressed 
behind  the  base,  stria?  composed  of  distant  punctures,  interspaces  scarcely 
punctulate,  tips  separated,  rounded,  sub-acuminate.  Length  8.5  mm.;  .35 
inch. 

8.  L.  punctinasus,  n.  sp. 

Black,  thinly  clothed  with  line  gray  pubescence.  Beak  rather  stout,  as 
long  as  the  protliorax,  with  the  head  strongly  but  not  coarseh'  punctured, 
with  scarcely  a  trace  of  carina,  frontal  fovea  distinct;  antennte  inserted  near 
the  tip  of  the  beak..  Prothorax  not  longer  than  wide,  gradually  strongly 
narrowed  in  front,  moderately  rounded  on  the  sides,  base  emarginate  each 
side,  medial  angle  obtuse  not  rounded,  disc  rugosely  punctulate  with  many 
large  shallow  punctures,  basal  impression  small,  deep.  Elytra  a  little 
wider  tlian  the  prothorax,  separately  rounded  at  tip,  basal  impressions  not 
deep,  striae  composed  of  distant  punctures.  Legs  as  in  the  preceding 
species.     Length  7.7  mm. ;  .30  inch. 

One  (^  Ohio.  Not  very  different  from  the  preceding  species,  luit  to  be 
regarded  as  distinct  on  account  of  the  antennte  being  nearer  the  tip  of  the 
beak,  which  is  not  carinate,  and  the  tips  of  the  elytra  being  separately 
rounded  and  not  sub-acuminate. 

9.  L.  parous,  n.  sp. 

Black,  thinly  clothed  with  coarser  gray  pubascence.  Beak  rather  stout, 
not  carinate,  as  long  as  the  prothorax,  strongly  punctured,  front  transversely 
impressed,  with  a  well-marked  fovea.  Antenna?  inserted  very  near  the  tip 
of  the  beak.  Prothorax  wider  than  long,  much  narrowed  in  front,  mod- 
erately rounded  on  the  sides,  base  obliquely  emarginate  each  side,  medial 
angle  obtuse,  prominent,  not  rounded;  surface  punctulate,  sparselj' coarsely 
punctured,  basal  impression  vague,  deep  at  the  middle  of  the  base.  Eh'tra 
wider  than  the  prothorax,  tips  rounded,  basal  impressions  moderately  deep, 
striae  composed  of  large  distant  punctures.  Legs  as  in  the  preceding 
species.     Length  5.5  mm.;  .23  inch. 

One  (j^  California,  Dr.  Horn.  The  smallest  species  I  have  seen,  and 
easily  known  by  the  coarsely  punctured  beak. 

10.  L.  terminalis,  n.  sp. 

Elongate,  black,  cinereous  pubescent,  mottled  with  small  spots  of  denser 
hair;  beak  not  very  slender,  as  long  as  the  prothorax  ;  finely  and  densely 
punctulate,  sides  coarsely  punctured;., antenna?  inserted  near  the  tip.  Pro- 
thorax longer  than  wide,  gradually  narrowed  from  the  base,  sides  straight, 
base  broadly  emarginate  each  side,  medial  angle  small,  pointed;  surface 
finely  punctured,  with  other  somewhat  larger  punctures,  dorsal  impression 
extending  nearly  to  the  tip,  channeled,  deeper  at  the  base.  Elytra  not 
wider  than  the  prothorax,  basal  impressions  not  large,  moderatelj'  deep, 
striae  composed  of  distant  punctures,  tips  separately  rounded.  Thighs 
moderately  clavate.     Length  9-11  mm. ;  .35-45  inch. 

(5"'.  More  densely  pubescent,  not  shining. 

5 .  Less  pubescent,  shining. 


158  CUECULION^ID^. 


[LeOonte. 


Middle  and  Western  States,  not  rare.  Easily  known  by  the  separately 
rounded  elytral  tips.  There  is  no  sexual  difference  in  the  position  of  the 
antenna?,  but  the  beak  is  a  little  longer  in  9  than  in  (^.  The  antenna3  are 
inserted  about  one-tifth  the  length  from  the  tip. 

One  rj^  from  Georgia  differs  in  having  the  punctures  of  the  elytra  less 
distant,  and  the  tips  of  the  elytra  more  broadly  rounded.  It  is  perhaps  a 
distinct  species. 

11.  L.  rectus,  n.  sp. 

Elongate,  finely  pubescent,  frequently  pollinose,  beak  longer  than  the 
prothorax,  upper  surface  finely  and  densely  punctured,  punctulate  beyond 
the  middle,  antenna?  inserted  about  one-third  from  the  tip.  Prothorax  longer 
than  wide,  narrowed  from  the  base,  sides  nearly  straight,  base  emarglnate 
each  side,  medial  angle  prominent,  obtuse,  not  rounded  ;  surface  Avitli  ap- 
proximate shallow  punctures,  interspaces  finely  punctured,  dorsal  concavity 
long,  triangular,  deep  towards  the  base.  Elytra  not  wider  than  the  pro- 
thorax, strise  composed  of  rather  distant  punctures,  basal  impressions  deep, 
tips  separately  rounded.     Length  10.5  mm. ;  .42  inch. 

One  9>  New  York.  Allied  to  X.  concavus,  but  narrower,  with  the  pro- 
thorax longer,  and  not  rounded  on  the  sides.  I  associate  with  this  species 
one  r^  from  Georgia,  in  which  the  beak  is  more  pubescent,  the  antennfe 
less  distant  from  the  tip  (about  a  quarter  of  the  length),  and  the  tips  of  the 
elytra  conjointly  rounded.  It  may  indicate  a  distinct  species,  but  I  am 
unwilling  to  separate  it  at  present. 

12.  L.  mucidus,  n.  sp. 

Large,  rather  robust,  black,  densely  clothed  with  fine  gray  pubescence ! 
beak  longer  than  prothorax,  upper  surfixce  densely  finely  punctulate,  obso- 
letelj'  carinate  behind  the  antennce,  which  are  inserted  about  one-quarter 
from  the  tip.  Prothorax  wider  than  long,  rounded  on  the  sides,  scarcely 
consi-ricted  at  tip,  densely  finely  punctured,  and  with  scattered,  larger, 
tolerably  deep  punctures,  base  emarginate  each  side,  medial  angle  prom- 
inent, not  rounded;  dorsal  excavation  oval,  deep.  Elytra  a  little  wider 
than  the  prothorax,  basal  impressions  wide  not  deep,  strife  composed  of 
moderately  distant  punctures,  tip  conjointly  rounded.  Length  14.5  mm. ; 
.57  inch. 

One  pair,  Illinois,  in  the  (^  the  beak  is  more  densely  pubescent,  and  the 
antenna;  are  somewhat  nearer  the  tip. 

13.  L.  concavus  Say,  Cure.  14;  ed.  Lee.  i,  275;  Boh.,  Sch.  Cure,  iii,  57. 
Atlantic  district,  not  rare.     The  beak  is  finely  punctulate  on  the  upper 

surface,  the  antennge  are  inserted  in  ^  about  one -fourth,  in  9  about  one- 
third  from  the  tip ;  the  punctures  are  denser  in  tbe  former.  The  pro- 
thorax is  wider  than  long,  rounded  on  the  sides,  distinctly  constricted  at 
tip.  The  dorsal  excavation  is  large,  triangular  and  deep.  The  basal  im- 
pressions of  the  elytra  are  also  deep,  and  the  tips  are  conjointly  rounded. 

14.  L.  musculus  Say,  Cure.  14  ;  ed.  Lee,  i,  276  ;  L.  calandroides  Ran- 
dall, Bost.  Journ.  Nat.  Hist,  ii,  42. 


LeOonte.] 


CLEONINI.  159 


Canada  to  Texas  ;  Colorado.  Shorter  and  stouter  than  our  other  species, 
and  variable  in  appearance,  according  as  the  pubescence  is  well  preserved 
or  abraded.  There  is  also  some  variation  in  the  number  and  depth  of  the 
large  punctures  of  the  prothorax.  The  antennsB  in  ^  are  about  one-fourth 
from  the  tip  of  the  beak  ;  in  9  about  one-third.  The  prothorax  is  wider 
than  long,  strongly  narrowed  in  front,  rounded  on  the  sides,  feebly  con- 
stricted at  tip  ;  the  dorsal  excavation  is  not  deep  except  at  the  base. 

15.  L.  perforatus,  n.  sp. 

Elongate,  black,  thinly  clothed  with  gray  pubescence.  Beak  as  long  as 
the  prothorax,  finely  punctured  ;  head  very  coarsely  punctured.  Protho- 
rax longer  than  wide,  narrowed  in  front,  feebly  rounded  on  the  sides, 
which  are  more  thickly  pubescent,  very  deeply  and  coarsely  punctured, 
interspaces  densely  punctulate,  basal  excavation  small.  Elytra  a  little 
wider  than  the  prothorax,  scutellar  impression  wide  not  deep,  intrahumeral 
impressions  deep ;  striae  composed  of  subquadrate  not  distant  punctures, 
tips  separately  acuminate,  but  not  prolonged  ;  the  inner  and  outer  inter- 
spaces more  densely  pubescent,  but  not  very  obviously  so. 

(^.  Beak  stouter,  densely  punctured,  more  coarsely  on  the  sides,  more 
finely  towards  the  tip  ;  antennae  one-third  from  the  tip. 

9.  Beak  more  slender,  shining,  sparsely  and  finely  punctiired,  sides 
sparsely  and  less  finely  punctured.  Antennae  inserted  about  the  middle  of 
the  beak. 

California,  Fort  Tejon.     The  elytral  strise  are  alternately  a  little  nearer. 

16.  L.  scrobicollis  Boh.,  Sch.  Cure,  iii,  84;  L.  lateralis\  Say,  Cure. 
14 ;  ed.  Lee.  i,  276. 

One  9  specimen,  Kentucky.  A  small  species  easily  known  by  the  sides 
of  the  pi'othorax  nearly  parallel,  much  rounded  and  constricted  near  the 
tip  ;  the  dorsal  excavation  is  small  and  basal;  the  punctures  very  large  and 
deep,  though  sparse.  The  sides  of  the  prothoi'ax  and  elytra  are  more 
densely  pubescent ;  the  tips  of  the  elytra  are  rounded  ;  the  antennas  are 
inserted  at  the  middle  of  the  beak,  which  is  sparsely  punctulate,  with  a 
few  punctures  intermixed  at  the  base  and  sides.  Length  7  mm  ;  .27  inch 

17.  L.  placidus,  n.  sp. 

Black,  somewhat  shining,  thinly  pubescent,  sides  of  prothorax  and  sub 
marginal  broad  vitta  of  elytra  whitish  pubescent.  Beak  rather  stout,  as 
long  as  the  prothorax,  finely  not  densely  punctured,  with  a  few  larger  punc- 
tures towards  the  base  and  on  the  sides  ;  antennae  inserted  at  the  middle  of 
the  beak.  Prothorax  a  little  longer  than  wide,  gradually  narrowed  from 
the  base,  feebly  rounded  on  the  sides,  not  constricted  at  tip,  finely  punc- 
tured, with  scattered  not  remote,  moderately  large  but  not  very  deep  punc- 
tures, disc  channelled,  with  a  small  basal  impression.  Elytra  a  little  wider 
than  the  prothorax,  conjointly  rounded  at  tip,  basal  impressions  shallow; 
striae  composed  of  large  rather  distant  punctures.    Length  10  mm. ;  .40  inch. 

Two  9>  Colorado.    A  very  distinct  species  of  moderately  elongate  form. 


160  CURCULIONID^. 


[LeConte. 


18.  L.  laesicollis  Leo.,  Proc.  Ac.  Nat.  Sc.  Pliila.,  1858,  78. 

Texas.  Beak  stout,  finely  punctured,  base,  sides  and  head  coarsely 
punctured  ;  prothorax  very  coarsely  and  tolerably  densely  cribrate,  sides 
nearly  parallel,  rounded  near  the  tip,  basal  impression  small.  Elytra  with 
deep  basal  impressions  ;  striae  composed  of  distant  large  punctures,  tips 
conjointly  subacute,  scarcely  rounded. 

19.  L.  macer,  n.  sp. 

Very  elongate,  black  shining,  thinly  clothed  with  fine  gray  pubescence. 
Beak  longer  than  prothorax,  curved,  not  stout,  punctured  ;  head  sparsely 
punctured.  Prothorax  scarcely  longer  than  wide,  strongly  narrowed  in 
front,  feebly  rounded  on  the  sides,  punctulate,  with  larger  not  deep  punc- 
tures, middle  of  base  deeply  impressed,  base  emarginate  each  side,  middle 
angle  prominent,  obtuse,  rounded  at  tip.  Elytra  a  little  broader  than  the 
prothorax,  basal  impressions  deep,  striae  composed  of  rather  approximate 
punctures;  tips  conjointly  subacute,  slightly  rounded.  Length  12-19.5 
mm.;  .48-. 77  inch. 

(^.  Beak  stouter,  a  little  longer  than  the  prothorax,  antennae  inserted 
one-third  from  the  tip. 

9 .  Beak  nearly  twice  as  long  as  the  the  prothorax,  antennae  inserted 
about  the  middle. 

Southern  and  Western  States  to  Colorado  and  Texas  ;  not  rare.  I  can- 
not understand  how  this  species  has  remained  undescribed.  It  is  easily 
known  not  only  by  the  large  size  and  elongate  form,  but  by  the  slender  an- 
tennae; the  first  and  second  joints  of  the  funiculus  are  ecpial,  and  very  long. 
In  some  specimens  there  is  a  broad,  sub-marginal  pubescent  vitta  on  the 
elytra,  and  in  one  individual  this  extends  upon  the  sides  of  the  prothorax. 

SPECIES  NOT  IDENTIFIED. 

L.  marginatus  Saj^  Cure.  13;  ed.  Lee.  i,  275;  Boh.,  Sch.  Cure,  iii,  70. 

L.  praepotens  Boh.,  Sch.  Cure,  iii,  63  ;  Rhynchophorus  pnepoteris  Say, 
Cure.   21  ;  ed.  Lee.  i,  287. 

L.  poricollis  Mann.,  Bull.  Mosc.  1843,  ii,  291. 

Li.  modestus  Mann.,  Bull.  Mosc.  ibid;  L.  calif  or  nicusMotsch.,  ibid. 
1843,  ii,  378.     Perhaps  L.  pleuralis  Lee.  (p.  155). 

Tribe  V.     i;ririiiivini. 

This  tribe  consists  of  a  great  number  of  species,  all  of  small  size,  and 
representing  a  large  number  of  genera.  Most  of  them  are  found  near 
water,  on  plants,  and  some  of  them  are  quite  aquatic  in  tlieir  habits.  In 
the  beak,  prosternum,  tibiae  and  tarsi  they  differ  greatly,  so  as  to  permit 
the  recognition  of  several  groups,  as  will  be  seen  below,  but  they  agree  in 
the  following  characters  : 

Mandibles  with  three  teeth,  separated  by  two  cmargiuations,  the  middle 
tooth  more  prominent;  in  the  group  DesmorMnes  the  outer  side  of  the 
mandibles,  by  the  transposition  of  the  inferior  tooth,  becomes  toothed  as 


LeConte.] 


EEIRHIXIXI. 


IGl 


in  RJiynchitida; ;  gular  peduncle  longer  than  wide,  slightly  cmarginate, 
mentum  small,  not  transverse,  ligula  and  palpi  prominent,  smaller  than 
in  Ilylohiini.  The  beak  is  cjiindrical,  sometimes  very  long  and  slen- 
der, sometimes  rather  stout;  the  autennal  grooves  commence  at  a  dis- 
tance from  the  tip,  descend  obliquely,  and  sometimes  become  confluent 
behind.  The  antennae  are  geniculate,  the  scape  long  and  slender ; 
funiculus  usually  7-jointed,  sometimes  (Endalus)  6-jointed;  club  oval, 
annulated,  entirely  clothed  with  sensitive  surface  except  in  Lissorhoptus. 
Prothorax  with  or  without  postocular  lobes;  front  coxse  contiguous,  pros- 
ternuni  flat,  emarginate,  or  not,  in  front,  sometimes  (Bagous)  broadly  sul- 
cate  for  reception  of  the  beak.  Mesosternum  with  the  side  pieces  diago- 
nally divided,  epimera  not  attaining  widely  the  base  of  the  prothorax. 
Metasternum  usually  long,  rarely  (Phycocwtes)  very  short;  side  pieces 
narrow^  dilated  in  front.  Hind  coxaj  widely  separated,  transverse,  nar- 
rower externally,  and  extending  almost  to  the  elytral  margin.  Legs  never 
very  stout,  thighs  usually  simple,  rarely  {Dorytomus)  toothed;  tibia3  trun- 
cate at  tip  and  feebly  mucronate  in  most  genera,  strongly  unguiculate  in 
Bagoi.  Tarsi  usually  dilated,  narrow  in  certain  genera;  last  joint  some- 
times long,  sometimes  short;  claws  not  toothed,  divergent,  sometimes  con- 
nate (Desmorhines),  or  single  (Brachybamiis);  last  joint  Avanting  in  the 
European  genus  Anoplus. 

Ventral  segments  unequal,  third  and  fourth  united  about  equal  to  the 
second  or  fifth;  sutures  straight,  excepting  the  first  which  is  sinuate  in 
most  genera,  and  the  last,  which  is  broadly  curved  in  Stenopelmus. 

Our  genera  are  numerous,  and  indicate  several  groups;  in  fact,  all  of 
those  recognized  by  Lacordaire  are  represented,  and  I  have  found  it  neces- 
sary to  establish  two  others. 

The  affinities  of  the  tribe  are  in  several  directions:  towardsthe  JTylobiini, 
Emphyastini  (Phycocmtes),  CeutorhyncMni  {Ilydronomi). 

Mesosterrium  as  long  as  first  ventral  segment,  2. 

very  short viii.  PHYCOOCETES. 

2.  Tibine  truncate  at  tip,  feebly  mucronate. ...  3. 

"      not  truncate,  strongly  unguiculate. .  vii.  HYDRONOMI. 

3.  Eyes  contiguous  to  prothorax 4. 

"     distant  from  "        iii.  EUGNOMI. 

4.  Body  scaly  or  pubescent 5. 

"      covered  with  a  waterproof  crust 6. 

5.  Beak  not  constricted  at  base;  claws  diver- 

gent   i.  ERIRHINI. 

Beak  strongly  constricted  at  base  :  claws 

connate  or  approximate ii.  DESMORHINES. 

6.  Tarsi  with  third  joint  bilobed 7. 

'•         "        "         "     simple  ;    beak    short 

and  stout iv.  STENOPELMI. 

7.  Last  joint  of  tarsi  short v.  CRYPTOPLI. 

"      "      "      "     long vi.  BRACHYPL 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  U 


162  CURCULIO^^ID^.  tl^eContr. 

Group  I.      Erirtilni. 

The  species  have  the  beak  long,  usually  slender,  the  mandibles  with  two 
sharp  teeth  at  the  end;  the  inferior  cusp  in  Erycus  comes  to  the  outer  mar- 
gin, and  is  not  very  prominent,  bvit  thus  shows  a  tendency  to  assume 
the  position  which  it  has  in  the  next  group.  The  antennal  grooves 
are  directed  against  the  eyes,  and  do  not  converge  beneath.  The  scape 
nearly  or  quite  attains  the  eyes,  and  the  first,  and  usually  the  second 
joint  of  the  funicle  are  longer  than  the  others.  The  mesosternum  is  as  long 
as  the  first  ventral ;  the  legs  are  slender,  tibiae  truncate  at  tip,  and  feebly 
mucronate;  the  tarsi  are  spongy  beneath,  with  the  third  joint  dilated  and 
bilobed;  last  joint  long,  claws  rather  strong,  simple,  divergent. 

This  group  recedes  in  the  direction  of  the  Phytonomini  and  Hylobuni* 

Thighs  not  toothed,  prosternum  emarginate 2. 

toothed,  prosternum  not  "         DORYTOMUS. 

2.  Body  pubescent  or  glabrous 3. 

' '      densely  clothed  with  scales GRYPIDIUS. 

3.  Antennae  inserted  far  from  the  tip  of  the  beak ERYCUS. 

near  "  "  "    PROCAS. 

PROOAS  Stephens. 

This  genus  bears  a  strong  resemblance  to  Erycus,  but  differs  in  having 
ithe  beak  rather  less  slender,  and  the  antennae  inserted  very  near  the  tip; 
the  second  joint  of  the  funicle  is  shorter  than  the  first,  though  longer  than 
ithe  third.  The  pi'osternum  is  strongly  emarginate  in  front,  and  the  post- 
'  ocular  lobes  are  broad.  The  thighs  are  unarmed,  the  tibiae  straight, 
strongly  pubescent,  truncate  at  tip,  and  scarcely  mucronate  ;  the  hind  pair 
have  two  small  terminal  spines  or  spurs,  as  mentioned  by  Touruier.f 

1,  P.  picipes  Stephens,  111.  British  Ent.  iv,  90;  Boh.,  Sch.  Cure,  vi,  387. 
Erirhinus Steveni GyW. ,  Sch.  Cure,  iii,  287:  Procas  SteveniSch.  Cure,  vi,  387. 

Lake  Superior;  Ulke.  My  specimen  agrees  so  closely  with  the  descrip- 
tion and  figure  (DuVal,  Gen.  Col.  Eur.  iv.  pi.  13,  f.  58),  that  I  do  not  ven- 
ture to  separate  it.  Opaque,  black,  slightly  mottled  with  spots  of  very  fine 
pubescence  ;  head  and  beak  very  densely  punctured.  Prothorax  a  little 
wider  than  long,  rather  small,  rounded  on  the  sides,  narrower  in  front,  and 
very  slightly  constricted;  very  densely  punctured.  Elytra  one-third  wider 
than  the  prothorax,  oblong,  humeri  rounded,  striae  deep,  catenate  with  dis- 
tant punctures;  interspaces  wide,  flat,  finely  and  densely  rugose  and  sub- 
granulate.  Beneath  densely  punctured,  less  opaque.  Length,  5.3  mm; 
.21  inch. 

*  The  following  species  do  not  belong  to  this  tribe :  Erirhinus  ephippiatus  Say, 
has  the  thighs  not  toothed,  and  the  claws  broadly  appendiculate;  it  indicates 
a  new  genus  Alyca  oi  Anthonomini.  Erirhinus  juniperinn^  Sanborn,  is  an  Antho- 
nomus.  Erirhinus  lutulentus  and  rutilus  Boh.,  Sch.  Cure,  vii,  2d,  165  and  167  not 
identified. 

Annates  Soc.  Entom.  Belgique,  xvii. 


lieConte.] 


ERIEHIXIXI.  1  (33 


G-RYPIDIUS  Sch. 


1.  G.  equiseti  GylL,  Sch.  Cure,  iii,  314;  Curculio  eq.  Fabr.,  Ent.  Syst. 
i,  403;  Rhynclmnus  eq.  Fabr.,  Syst.  El.  ii,  443,  &c.  &c. 

A  common  European  species  which  is  is  indigenous  in  Canada,  Kansas, 
and  on  the  north  shore  of  Lake  Superior.  A  Canadian  specimen  was  sent 
me  by  Mr.  W.  Couper,  wliicli  I  determined  simply  as  Gri/piditm,  n.  sj).?, 
but  by  some  confusion  of  labels,  in  describing  the  species  to  which  I  had 
given  no  definite  names,  he  has  given  the  name  6?.  vitiatus*  to  a  small 
species  of  Sitones,  apparently  the  S.  tibialis  of  Europe,  which  occurs  in  Can- 
ada and  in  Hudson  Bay  Territory,  perhaps  imported,  perhaps  indigenous. 

2.  Gr.  brunnirostris  Gyll.,  Sch.  Cure,  iii,  316;  Bliynchanus  br.  Fabr., 
Syst.  El.  ii,  445,  &c. 

Two  specimens  from  Oregon  do  not  appear  sufficiently  distinct  from  this 
European  species.  It  is  smaller  than  the  preceding,  and  easily  known  by 
the  elytral  interspaces  being  even,  not  tuberculate,  and  the  scales  uniform 
in  color. 

ERYCUS  Tournier,  Ann.  Ent.  Belg.  xvii. 

This  genus  contains  those  species  of  Erirhinus  in  which  the  prosternum 
is  deeply  emarginate  in  front,  and  the  postocular  lobes  broad  and  distinct. 
The  hind  tibi;B  are  feebly  mucronate,  and  have  in  addition  two  very  small 
spines  or  spurs. 

But  two  species  are  known  to  me,  the  first  of  which  differs  but  slightly 
from  the  European  E.  CBthiops. 

Nearly  glabrous,  shining  ;  prothorax    sparsely  punc- 
tured    1.  morio. 

Mottled  with  pubescence  ;  prothorax  coarsely,  densely 

punctured 2.  puncticollis. 

1.  E.  morio  Mann.,  Bull.  Mosc.  18-)3,  ii,  240  (Erirhinus.) 
Alaska,  Vancouver  Island,  Great  Slave  Lake,  Canada. 

2.  E.  puncticollis  n.  sp. 

Black,  mottled  with  yellowish  pubescence.  Head  and  beak  strongly 
not  densely  punctured;  prothorax  as  long  as  wide,  sides  feebly  rounded, 
more  strongly  in  front,  tip  slightly  impressed  on  the  sides,  surface  coarsely 
and  densely  punctured.  Elytra  wider  than  prothorax,  humeri  rounded, 
stria)  with  quadrate  approximate  punctures,  interspaces  densely  punctured, 
irregularlj^  pubescent,  with  a  more  conspicuous  sutural  transverse  spot  be- 
hind the  middle.  Thighs  somewhat  clavate,  not  toothed;  front  and  mid- 
dle tibias  moderately  strongly  mucronate,  hind  pair  with  a  very  small  mu- 
cro,  and  small  terminal  spurs.  Body  beneath  coarsely  and  densely  punc- 
tured.    Length  5.5-6  mm;  .22-. 25  inch. 

Middle  and  Western  States  and  Lake  Superior.  Looks  like  a  small 
Pissodes. 

*  Canadian  Naturalist  1865,  p.  63;  v.  ante,  p.  115. 


IGl 


CURCULIOXID^. 


[IjeConte. 


DORYTOMUS  Scli. 

In  this  genus  the  prosternum  is  not  emarginate  in  front,  and  the  thiglis 
are  armed  beneath  with  a  distinct  tooth;  in  the  first  three  species  tliis 
tooth  is  small  and  acute,  in  the  others  broader  and  nearly  rectangular. 
The  prothorax  is  narrower  than  the  elytra,  suddenly  narrow^ed,  and  some- 
times constricted  in  front,  without  postocular  lobes.  The  body  is  mottled 
with  spots  of  pubescence,  which  in  D.  sqtiamosus  is  very  short  and  scale- 
like.  The  species  occur  mostly  on  willows. 
Thighs  more  slender,  tooth  small,  acute;  beak  very 

long,  striate  ;  antennjic  more  slender,  second 

joint  of  funicle  longer  than  third 2. 

Thighs  stouter,  tooth  broader  and  larger 3. 

2.  Prothorax  finely  punctured,  not  constricted  at 

tip 1.  mucidus. 

Prothorax  strongly  punctured,  suddenly  con- 
stricted at  tip 2.  laticollis. 

Prothorax  densely  punctured,  gradually  rounded 

and  feebly  constricted  at  tip 3.  rufulus. 

3.  Beak  striate 4. 

' '      punctured,  scarcely  striate 7. 

4.  Prothorax  not  wider  than  long 6. 

"  distinctly  transverse,  coarsely  and 
densely  punctured,  suddenly  narrowed  at 
tip  and  constricted 4.  brevicollis. 

5 .  Prothorax  not  constricted  at  tip 6. 

"  constricted         "     "  5.  luridus. 

6.  "  suddenly  narrowed  in  front 6.  subsignatus. 

"  gradually  rounded  near  the  tip 7.  longulus. 

7.  Pubescence  squamiform,  slightly  mottled,  pro- 

thorax gradually  rounded  near  the  tip,  not 

constricted 8.  squamosus. 

Pubescence  coarse,  hairj',  nearly  uniform 8. 

8.  Fulvous,  wdtli  yellow  pubescence 9.  Mannerheimii. 

Piceous  with  gray  pubescence 9. 

9.  Pubescence  of  elytra  mixed  with  longer  hairs. .  lO.  hirtus. 

"  "  "        "    erect  stift'hairs  11.  hispidus. 

1.  D.  mucidus.  Erirhinus  muc.  Say,  Cure.  14;  ed.  Lee.  i,  277;  Gyll., 
Sch.  Cure,  iii,  291. 

Canada  and  Kansas,  abundant  at  Los  Angeles  and  Oakgrove,  Cal.;  G.  R. 
Crotch.  Larger  than  our  other  species,  and  easily  recognized  by  the  more 
finely  punctured  prothorax,  and  very  long  beak.  Breeds  in  blossoms  of 
cottonw'ood;  develops  very  rapidly,  (Riley). 

2.  D.  laticollis  n.  sp. 

Pitchy  black,  irregularly  mottled  with  cinereous  pubescence.  Beak  very 
long,  slender,  striate  and  coarsely  punctured,  strongly  curved.  Prothorax 
wider  than  long,    rather  coarsely  punctured,  without  dorsal  line,  sides 


LeConte. 


EBIRIIINIXI.  165 


rounded,  suddenly  narrowed  near  the  tip,  and  strongly  constricted.  Elytra 
very  little  wider  than  the  prothorax;  stride  composed  of  close-set  punctures, 
disc  convex,  obliquely  impressed  near  the  base,  interspaces  flat,  finely 
punctulate.  Thighs  rather  slender,  armed  with  a  small  acute  tooth. 
Length  4.5  mm;  .175  inch. 
Lake  Superior  and  Iowa. 

3.  D.  rufulus.  Erirhinus  ruf.  Mann.,  Bull.  Mosc.  1853,  ii,  240. 
Alaska:  one  specimen  kindly  sent  by  Baron  Chaudoir.    Smaller  than  the 

preceding,  and  very  closely  allied  to  it,  differing  chietly  by  the  sides  of  the 
prothorax  less  rounded,  less  suddenly  narrowed  and  less  deeply  constricted 
at  tip,  and  by  the  elytra  one-third  wider  than  the  prothorax.  The  color 
is  ferruginous,  though  this  may  not  be  of  specific  value.  The  beak  is 
scarcely  as  long  and  slender,  but  the  legs  are  similar.  Mannerheim  erro- 
neously states  that  the  thighs  are  unarmed. 

4.  D.  brevicollis,  n.  sp. 

Pitchy  black,  irregularly  mottled  with  cinereous  hair,  autennpe  and  legs 
brown.  Beak  as  long  as  the  head  and  prothorax,  strongly  striate  and 
coarsely  punctured.  Prothorax'  one-half  wider  than  long,  densely  punc- 
tured, sides  rounded,  tip  constricted  ;  elytra  one-third  wider  than  the 
prothorax,  convex  ;  striae  closely  punctured,  interspaces  sparsely  punctu- 
late. Thighs  stout,  with  a  rather  large  tooth.  Length  3.5-4.3  mm; 
.14-.  17  inch. 

Western  and  Middle  States  and  Lake  Superior.  Differs  from  the  follow- 
ing species  chiefly  by  the  more  transverse  prothorax. 

5.  D.  luridus.  Erirhinus  lur.  Mann.,  Bull,  Mos.  1853,  ii,  241. 

Alaska  and  California.  I  have  a  specimen  in  bad  condition,  from  Geor- 
gia, which  may  possibly  belong  to  this  species,  if  not,  it  will  indicate  a 
new  one  closely  allied.  In  well  preserved  specimens  the  pubescence  is 
very  coarse  and  mottled  in  color.  The  posterior  callus  of  the  elytra  is 
somewhat  distinct,  but  by  no  means  sufficiently  so  to  warrant  Manner - 
helm's  expression,  "elytris  ante  apicem  utrinque  tuherculo  tnstructis." 

Two  smaller  specimens  from  Alaska  have  the  thorax  less  rounded  on  the 
sides  near  the  tip,  and  in  one  of  them  there  is  a  distinct  smooth,  narrow, 
dorsal  vitta;  they  were  sent  to  me  as  Erirhinus  vestitus  Mann.,  a  very  dif- 
ferent species,  which  has  the  beak  punctured  but  not  striate. 

Four  specimens  of  small  size  were  ^collected  by  Mr.  Crotch  in  the 
Mojave  Desert,  Cal.,  which  I  would  temporarily  refer  to  this  species. 
Thej^  are  yellow  brown  with  a  broad  darker  stripe  on  each  elytron.  They 
agree  in  form  with  the  Eastern  specimen,  and  are  a  little  more  robust  than 
those  from  Alaska.     Length  2.5  mm;  .10  inch. 

A  larger  series  of  well-preserved  specimens  will  perhaps  show  the  pro- 
priety of  receiving  these  three  forms  as  distinct  species. 

6.  D.  subsignatus.  Erirhinus  subs.  Mann.,  Bull.  Mosc.  1853,  ii,  241. 
Alaska,  Count  Mnizech  and  Prof.  Maklin. 


166  CURCULIOS^ID^. 


[LeConte. 


7.  D.  long-ulus,  n.  sp. 

Ferruginous  (immature?),  mottled  with  cinereous  pubescence.  Beak  as 
long  as  the  head  and  prothorax,  nearly  straight,  not  very  slender,  deeply 
striate  and  punctured.  Prothorax  not  wider  than  long,  gradually  narrowed 
and  rounded  on  the  sides  in  front,  and  not  constricted ;  densely  though  not 
coarsely  pvinctured,  with  a  slight  trace  of  a  smooth  dorsal  line.  Elytra 
elongate,  one-quarter  wider  than  the  thorax,  convex,  transversely  impressed 
near  the  base,  strise  closely  punctured,  margin  impressed  just  behind  the 
humerus.     Thighs  stout,  with  a  broad  tooth.     Length  3.5  mm;  .14  inch. 

One  specimen  from  Alaska  sent  with  D.  rufulus,  from  which  it  is 
abundantly  distinct  by  the  longer  form,  different  prothorax,  stouter  and 
more  strongly  toothed  thighs.  The  transverse  impression  of  the  elytra 
near  the  base  is  rather  stronger  than  in  D.  luridus,  and  very  much  as  in  D. 
suhsignat'us,  with  which  it  agrees  except  in  the  form  of  the  prothorax. 

8.  D.  squamosus.  AnthouomusX  tessellatus\  Walsh,  Proc.  Ent.  Soc, 
Phila.  vi,  207. 

Piceous,  or  ferruginous,  mottled  with  pale  depressed  scale-like  hairs. 
Beak  as  long  as  the  head  and  prothorax,  not  striate,  punctured,  nearly 
smooth  at  tip.  Prothorax  a  little  wider  than  long,  densely  punctured,  sides 
rounded  in  front,  and  slightly  constricted.  Elytra  one-third  wider  than  the 
prothorax,  convex,  striaa  rather  coarsely  punctured.  Thighs  rather  slen- 
der, tooth  small. 

Illinois  and  Kansas:  bred  by  Mr.  B.  D.  Walsh  from  galls  which  occur  on 
willow.  Mr.  Walsh  recognized  the  resemblance  in  form  to  Erirhinuf^, 
but  unfortunately  misplaced  this  species,  in  which  the  claws  are  simple 
and  divergent. 

9.  D.  Mannerheimii.  Erirhinus  Mann.  Gemminger,  Col.  Hefte,  viii, 
133;  Erirhinus  vestitus  \\  Mann.,  Bull.  Mosc.  1853,  ii,  343. 

Alaska,  one  specimen.  Prof.  Maklin;  British  Columbia.  Quite  distinct 
from  the  other  species  in  our  fauna  by  the  uniform  coarse  gray  pubescence, 
and  the  punctured  beak;  the  prothorax  is  a  little  wider  than  long,  suddenly 
narrowed,  rounded  and  feebly  constricted  near  the  tip.  Length  3.5  mm: 
.10  inch. 

10.  D.  hirtus,  n.  sp. 

Brownish  yellow,  or  fulvous,  clothed  with  coarse  yellow  hair,  which  is 
mixed  with  longer  hairs  on  the  elytra.  Beak  as  long  as  the  head  and  pro- 
thorax, finelj^  punctured,  feebly  striate  near  the  base,  marked  between  the 
antennai  with  an  elongate  fovea.  Prothorax  transverse,  one-half  wider  than 
long,  rounded  on  the  sides,  suddenly  narrowed,  rounded  and  constricted 
near  the  tip  ;  disc  strongly  not  very  densely  punctured,  obsoletely  chan- 
neled. Elytra  wider  than  the  prothorax,  oblong  elongate,  humeri  rounded; 
strife  composed  of  approximate  square  punctures,  interspaces  flat,  sparsely 
punctulate  and  rugose.  Thighs  armed  with  a  small  tooth.  Length  3.5  mm; 
.14  inch. 

One  specimen,  San  Diego,  Cal. 


LeConte.] 


ERIRHINIXI.  107 


11.  D.  hispidus,  n.  sp. 

Brownish  yellow,  clothed  with  coarse  yellow  hair,  slightly  mottled  near 
the  tips  of  the  elytra,  and  mixed  on  the  elj'tra  with  longer  stitf  suberect 
bristles.  Beak  as  long  as  the  head  and  prothorax,  finely  punctured,  with- 
out stnse  and  without  interantennal  fovea.  Prothorax  strongly  punctured, 
with  an  indistinct  smooth  dorsal  line  ;  one-half  wider  than  long,  rounded 
on  the  sides;  suddenly  rounded,  narrowed,  and  very  feebly  constricted  near 
the  tip.  Elytra  oblong  elongate,  wider  than  the  prothorax,  humeri 
rounded,  striae  composed  of  approximate  punctures,  interspaces  wide,  fiat, 
sparsely  punctulate.  Thighs  armed  with  a  small  tooth.  Length  3.5  mm; 
.14  inch. 

One  specimen.  New  Mexico.  Very  similar  to  the  preceding,  but  suffi- 
ciently distinct  by  the  suberect  bristles  of  the  elytra,  the  prothorax  less 
constricted  at  the  tip,  and  the  beak  without  a  fovea  between  the  antennae. 

Group  II.    Desmorhlnes. 

In  the  genera  constituting  this  group  the  beak  is  slender,  and  separated 
from  the  head  by  a  sharply  defined  transverse  line,  or  constriction.  In  our 
genera  the  claws  are  connate  at  base,  but  as  this  character  is  not  mentioned 
in  the  European  genus  Sharpia  (Tournier,  Ann.  Ent.  Belg.  xvii,)  and  is 
somewhat  variable  in  Smicronyx,  I  do  not  know  that  it  is  properly  of 
group  value.  The  mandibles  are  truncate  at  tip,  and  toothed  botli  on  the 
inner  and  outer  edge  as  in  Rhynchitidte.  The  prosternum  is  emarginate 
in  front,  and  the  ventral  sutures  are  very  slightly  curved  at  the  sides.  The 
antennal  grooves  descend  obliquely  and  are  almost  confluent  behind. 
AntenuiB  with  first  and  second  joints  of   funicle 

elongated 2. 

Antennai  with  second  joint  of  funicle  scarcely  longer 

than  third 3. 

2.  Antennae  slender,  club  small,  oval DESMORIS. 

stouter,  club  larger,  elongate  oval PACHYTYOHIUS. 

3.  Claws  small,  frequently  connate  nearly  to  the  tip         SMICRONYX. 

DESMORIS  n.  g. 

This  genus  corresponds  closely  with  Erirhinus,  except  in  the  differences 
indicated  in  the  definition  of  the  group,  viz.,  the  connate  claws,  the 
oblique  antennal  grooves  which  are  nearly  confluent  behind,  and  the  beak 
constricted  at  base.  The  second  joint  of  the  funicle  is  as  long  as  the 
first,  but  more  slender.  The  thighs  are  clavate,  unarmed.  The  tibiae 
slightly  mucronate  and  truncate  at  tip,  nearly  as  long  as  the  thighs  ;  tarsi 
dilated,  third  joint  deeply  bilobed,  fourth  joint  long;  claws  small,  connate 
nearly  to  the  tip. 

The  appearance  is  that  of  Balaiiinus  in  miniature,  the  eyes  are  rather 
large  and  transverse,  the  sides  of  the  prothorax  scarcely  lobed,  and  the 
prosternum  moderately  emarginate  in  front ;  the  prothorax  is  rounded  on 


168 


CURCULIONID^.  [LeConte. 


the  sides,  narrowed  in  front,  feeWy  constricted  near  the  tip  ;  the  elytra 
wider  than  the  prothorax,  stria;  deep,  slightly  punctured,  interspaces  flat. 
The  beak  is  one-half  longer  than  the  head  and  prothorax,  and  is  separated 
from  the  head  by  a  deep  transverse  impression. 

Scape  of  antennae  not  attaining  the  eyes 1.  scapalis. 

nearly     "  "        2.  constrictus. 

1.  D.  scapalis,  n.  sp. 

Dark-brown,  densely  clothed  with  whitish  scales.  Beak  strongly  punc- 
tured, antenna?  slender,  with  the  scape  not  reaching  the  eyes,  inserted  about 
the  middle  of  the  beak.  Head  sparsely  punctured,  separated  from  the  beak  by 
a  shari)  transverse  impression.  Prothorax  densely  punctured,  very  convex, 
not  longer  tlian  wide,  much  rounded  on  the  sides,  narrowed  in  front,  and 
constricted  at  the  sides  at  a  greater  distance  from  the  tip  than  usual,  base 
nearly  straight.  Elytra  one-half  wider  than  the  prothorax,  convex,  feebly 
emarginate  at  base,  humeri  prominent,  rounded ;  striae  deep,  strongly 
punctured,  interspaces  flat,  sparsely  rugosely  punctured.  Thighs  strongly 
clavate.     Length  4.5  mm. ;  .17  inch. 

One  specimen,  Kansas.  Larger  than  the  next,  and  easily  known  by  the 
short  antennal  scape,  which  fails  to  reach  the  eyes  by  a  length  equal  to  the 
first  joint  of  the  funicle. 

2.  D.  constrictus.  Rhynclmnus  constr.  Say,  Journ.  Ac.  Nat.  Sc.  Pliila. 
ill,  318;  ed.  Lee.  ii,  176;  Balaninus  constr.  Say,  Cure.  26;  ed.  Lee.  i, 
294  ;  Sch.  Cure,  vii,  293  ;  ErirhiimH  constr.  Gyll.,  Sch.  Cure,  iii,  286. 

Kansas  and  Missouri,  not  rare.  The  beak  is  not  quite  so  long  in  (^  as 
in  $  ;  it  is  ininctured  in  the  former,  and  squamose  beliind  the  antenna;;  in 
the  latter  it  is  glabrous,  except  at  the  base,  and  smooth  except  on  the  sides 
near  the  base.  Smaller  than  the  preceding,  with  the  sides  of  the  thorax 
less  rounded  ;  the  color  is  blackish,  with  the  antennae  and  legs  dark  ferru- 
ginous. Either  of  these  species  will  agree  with  the  descriptions  of  Say 
and  Gyllenhal.  The  latter  author  does  not  mention  the  transverse  con- 
striction at  the  base  of  the  beak. 

PAOHYTYCHIUS  Jekel. 

The  species  which  I  have  referred  to  this  genus  are  rather  convex  and 
stout  insects,  having  the  sides  of  the  prothorax  and  elytra  rounded.  They 
agree  with  Desmoris  in  having  the  second  joint  of  the  funicle  elongated, 
but  the  antennae  are  stouter,  and  the  club  larger.  They  difler  from  Smi- 
cronyx  chiefly  by  the  second  joint  of  the  funicle  being  obviously  longer 
than  the  tliird.     The  claws  are  connate  for  one-half  their  length. 

Elytra  mottled  with  spots  of  gray  scales 1.  amoenus. 

"      with  broad  white  margin 2.  discoideus. 

1.  P.  amoenus.  TycMus  amoinus  Saj',  Cure.  26;  ed.  Lee.  i,  294;  Gyll., 
Sch.  Cure,  iii,  419. 
Western  States,  and  Lake   Superior.     A  very  robust  species,   clothed 


LeConte.]  EKIRHINIXI.  1G9 

witli  dark-brown  scales;  the  prothorax  has  four  whitisli  vitta3;  the  el3'tra  a 
short  basal  liue  on  each,  and  some  narrow  irregular  whitish  bands  ;  the 
sides  of  the  prothorax  are  much  rounded  and  incurved  at  the  base.  The 
scales  at  the  base  of  the  beak  form  two  little  tufts  as  in  the  next  species. 

2.  P.  discoideus,  n.  sp. 

Robust,  black,  clothed  with  wiiite  scales ;  disc  of  prothorax  and  elytra 
brown.  Beak  longer  than  head  and  thorax,  not  slender,  curved,  strongly 
punctured,  not  thickened  towards  the  base,  which  is  deeply  transversely 
impressed;  the  scales  form  two  small  tufts  near  the  transverse  impression. 
Prothorax  wider  than  long,  very  much  narrowed  in  front,  strongly  rounded 
on  the  sides,  which  are  incurved  near  the  base,  though  less  so  than  in  P. 
amosnus,  coarsely  and  densely  punctured  ;  disc  brown  for  two-thirds  the 
length,  and  one-half  the  width  ;  with  a  whitish  basal  vitta.  Elytra  wider 
than  prothorax,  rounded  on  the  sides,  thqugh  less  so  than  in  the  preceding; 
humeri  rounded,  but  somewhat  prominent  ;  striae  tine,  interspaces  flat. 
Thighs  clavate,  claws  connate  for  about  one-half  the  length.  Length  2.5 
mm. ;  .  10  inch. 

New  York,  Illinois,  Texas,  and  California.  The  discoidal  spot  of  the 
elytra  extends  from  the  base  for  half  the  length  and  breadth;  there  is 
frequently  a  black  lateral  spot  on  the  elytra,  just  behind  the  middle. 

SMICRONYX  Sch. 

This  genus  contains  small  species  which  only  differ  from  Pachytychms 
by  the  second  joint  of  the  funicle  being  shorter  than  the  first,  and 
frequently  not  longer  than  the  third  ;  the  scape  reaches  to  the  eyes.  The 
postocular  lobes  of  the  prothorax  are  sometimes  distinct,  and  the  proster- 
num  is  moderately  emarginate  in  front.  The  beak  is  shorter  tlian  in 
Deajnoris,  and  is  slightly  thicker  at  base  ;  the  transverse  constriction  is 
well  defined,  and  the  pubescence  at  the  base  of  the  beak  rises  into  two 
tufts. 

The  form  varies  somewhat,  the  first  species  resembles  ParJiytychim  by 
the  strongly  rounded  sides  of  prothorax  and  ovate  elytra  ;  others  resemble 
in  miniature  Dorytomu><,  but  the  thighs  are  not  toothed,  and  the  claws  are 
small  and  connate  almost  to  the  tips.  Others  again  have  the  claws  approxi- 
mate, but  scarcel}'^  connate. 

The  genus,  even  as  thus  defined,  seems  to  me  somewhat  heterogeneous, 
and  with  more  careful  study  will  be  found  perhaps,  to  contain  elements 
representing  other  European  genera.  It  will  be  for  future  investigators  to 
determine  if  our  species  shall  be  partitioned,  or  the  European  forms  con- 
densed. 

The  species  are  difficult  to  define,  and  the  table  given  is  not  very  satis- 
factory. 

Second  joint  of  funicle  of  antennse  not  longer  than  third  ;  claws 

connate  for  more  than  half  the  length 2. 

Second  joint  of  funicle  of  antennae  longer  than  third;  claws  not 
connate,  or  feebly  so 7. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  V 


170 


CUKCULIONLD^. 


[LeConte. 


2.  Elytra  ovate,  rounded  on  the  skies 3. 

' '      oblong,  parallel       "        "    4. 

3.  Prothorax  transverse,  scales  yellow 1.  corpulentus. 

"             scarcely  wider  than  long,  scales  gray  2.  ovipennis. 

4.  Beak  straight,  scales  gray 5. 

' '      curved 6. 

5.  Elytra  suddenly  wider  than  prothorax 3.  griseus. 

"      gradually,  slightly  wider  than  prothorax  4.  obtectus. 

6.  Of  usual  size,  scales  yellow,  elytra  rather  broad. .  5.  flavicans. 

Very  small,  scales  grayish,  elytra  narrow 6.  pusio. 

Of  usual  size,  mottled  with  spots  of  grayscales. .  7.  tychioides. 

7.  Interspaces  of  elytra  not  setose 9. 

"                     "      with  single  rows  of  hairs.  .  8. 

8.  Of  usual  size  and  form 8.  vestitus. 

Smaller  and  more  elongate 9.  seriatus. 

9.  Scales  mottled  in  color 10. 

"       small,  uniform  bright  fulvous 10.  fulvus- 

"       large,  dirty  gray 11.  sordidus. 

10.  Elytra  longer  and  less  convex 12.  cinereus. 

"      more  convex,  scales  large,  oval 13.  squamulatus. 

"  "  "  "       narrow 14.  corniculatus. 

1.  S.  corpulentus,  n.  sp. 

Robust,  black,  densely  clothed  with  oval  ochreous  scales  ;  beak  densely 
punctured,  slightly  curved,  as  long  as  the  head  and  prothorax,  thinly 
pu1)escent.  Prothorax  nearly  twice  as  wide  as  long,  convex,  sides  strongly 
rounded,  densely  punctured,  punctures  obscured  by  the  scales,  disc  darker 
than  the  sides.  Elytra  convex,  sub  ovate,  one  fourth  wider  than  the  pro- 
thorax, humeri  prominent,  rounded,  striae  well  impressed,  fine,  interspaces 
flat ;  disc  with  a  common  dark  spot  extending  from  the  base  nearly  to  the 
middle,  wider  behind,  and  reaching  the  third  stria.  Antennae  with  the 
funicle  rather  stout,  second  joint  not  longer  than  the  third  ;  hind  tibiae 
scarcely  mucronate.     Length  2.7  mm  ;  .11  inch. 

One  specimen,  Louisiana.  Resembles  in  form  Pachytycldus  discoideus, 
but  easily  distinguished  by  the  generic  characters,  and  the  difterent  color 
of  the  scales. 

2.  S.  ovipennis,  n.  sp. 

Robust,  piceous  black,  thinly  clothed  with  large  gray  scales  ;  beak  punc- 
tured, thinlj^  pubescent,  slightly  curved,  as  long  as  the  head  and  prothorax, 
Prothorax  scarcely  wider  than  long,  rounded  on  the  sides,  narrower  in 
front,  convex,  densely  punctured.  Elytra  ovate,  nearly  one-half  wider 
than  the  prothorax,  humeri  rounded,  striae  deep,  sparsely  punctured,  in- 
terspaces flat.  Antennae  with  the  funicle  rather  stout,  second  joint  not 
longer  than  third;  hind  tibiae  scarcely  mucronate.  Length  2.5  mm. ;  .10 
inch. 

Michigan,  Kansas,  Texas.     The  color  of  the  scales  is  sometimes  uniform, 


LieConte.] 


ERIRHININI.  IV I 


sometimes  mottled  ;  it  is  easily  recognized  by  the  ovate  elytra,  which  are 
distinctly  wider  at  the  middle  than  at  the  base. 

3.  S.  griseus,  n.  sp. 

Black,  not  very  densely  clothed  with  oval  gray  scales;  beak  longer  than 
head  and  prothorax,  less  curved  than  usual;  squamose  towards  the  base. 
Prothorax  without  postocular  lobes,  slightly  longer  than  wide,  gradually 
narrowed  from  the  base,  feebly  rounded  on  the  sides,  moderately  constric- 
ted at  the  sides  near  the  tip  ;  not  very  convex,  finely  punctured.  Elytra 
elongate,  one-third  wider  than  the  prothorax,  humeri  not  very  prominent, 
broadly  rounded:  striae  impressed,  punctured,  not  concealed  by  the  scales. 
Antennae  and  legs  very  dark-brown.     Length  2  ram.;  .08  inch. 

Southern  and  Western  States,  Georgia  to  Kansas.  This  is  probably 
Micronyx  cinereus  jDej.,  a  name  since  used  for  another  species. 

4.  S.  obtectus,  n.  sp. 

Black,  very  densely  clothed  with  broadly  oval  yellowish  scales,  conceal- 
ing the  punctures;  beak  as  long  as  the  head  and  prothorax,  curved  ;  pro- 
thorax a  little  longer  than  wide,  gradually  narrowed  in  front,  and  con- 
stricted as  in  griseus,  but  more  rounded  on  the  sides,  strongly,  not  densely 
punctured.  Elytra  of  the  same  form  as  in  griseus,  striae  concealed  by  the 
scales,  but  when  they  are  removed,  deep  and  punctured,  interspaces  flat, 
nearly  smooth.  Legs  and  antennje  very  dark -brown.  Length  3  mm.;  .08 
inch. 

California,  found  by  me  at  San  Diego. 

5.  S.  flavicans,  n.  sp. 

Piceous,  clothed  with  small  ochreous  scales  ;  beak  slightly  curved,  as 
long  as  the  head  and  prothorax,  punctured,  opaque,  thinly  pubescent. 
Prothorax  a  little  wider  than  long,  rounded  on  the  sides,  narrower  in 
front,  convex,  densely  punctured,  postocular  lobes  broad,  distinct.  Elytra 
oblong,  convex,  sides  parallel,  then  rounded  at  the  tip  ;  one-third  wider 
than  the  prothorax,  humeri  prominent,  rounded;  stride  well  impressed,  in- 
terspaces slightly  convex.  Antennie  with  second  joint  of  funicle  not 
longer  than  third,  legs  brown,  hind  tibia  scarcely  mucrouate.  Length 
2.7  mm.;  .11  inch. 

Texas.     Belfrage  ;  one  specimen. 

6.  S.  pusio,  n.  sp. 

Quite  similar  to  S.  obtectus,  but  very  much  smaller,  with  the  scales 
broadly  oval  and  very  dense.  The  striie  of  the  elytra  seem  to  be  finer  and 
somewhat  nearer  by  pairs,  the  second  and  fourth  interspaces  appearing 
wider.     Antennae  and  legs  dark-brown.     Length  1.5  mm. ;  .06  inch. 

Cape  San  Lucas  ;  Mr.  Xantus. 

7.  S.  tychoides,  n.  sp. 

More  robust  and  convex,  black,  irregularly  mottled  with  small  whitish 
scales,  which  are  of  two  forms,  some  being  broad  and  some  quite  narrow. 
Beak  curved,  longer  than  head  and  thorax,  punctured  and  scaly  towards 


172  CUKCtJLIOXID.E.  [LeConte. 

the  biise.  Prothorax  <a  little  wider  tlicin  long,  much  rounded  on  the  sides, 
narrowed  in  front,  and  not  constricted,  moderately  punctured,  punctures 
becoming  granules  at  the  sides.  Elytra  one-third  wider  than  the  prothorax, 
humeri  rather  prominent,  less  rounded,  sides  slightly  rounded  ;  scales 
thinl}'^  distributed  with  small  spots  more  densely  placed,  striae  well  marked, 
punctured,  interspaces  flat.  Legs  and  antennaj  dai'k  reddish-brown. 
Length  nearly  8  mm.;  .11  inch. 

Western  States ;  Kansas,  Texas.  The  elytra  are  sometimes  reddish- 
brown,  with  the  suture  dark. 

8.  S.  vestitus,  n.  sp. 

Rather  roljust,  convex,  black,  very  densely  clothed  with  grayish  and 
yellowish,  l)roadly  oval  scales,  though  scarcely  mottled  in  color.  Beak  as 
in  the  preceding.  Prothorax  as  wide  as  long,  narrowed  from  the  base  for- 
wards, rounded  on  the  sides,  not  constricted  near  the  tip;  densely  and 
strongly  punctured,  with  a  few  scattered  hairs  mingled  with  the  scales, 
which  conceal  the  punctures,  except  where  abraided.  Elytra  suddenly 
more  than  one-third  wider  than  the  prothorax;  humeri  rather  prominent, 
sides  slightly  rounded,  disc  convex  with  well-marked  finely  punctured 
striae,  interspaces  flat,  each  with  a  row  of  whitish  hairs.  Antenn;^  and 
legs  ferruginous  brown.     Length  2.75  mm.;  .10  inch. 

One  specimen,  Kansas. 

9.  S.  seriatus,  n.  sp. 

More  elongate,  clothed  with  oval  dirt-colored  scales,  not  mottled.  Beak 
as  usual.  Prothorax  as  long  as  wide,  very  little  narrowed  in  front,  broadly 
rounded  on  the  sides,  scales  intermixed  with  white  hairs,  disc  (when  de- 
nuded) coarsely  punctured.  Elytra  elongate,  about  one-third  wider  than 
the  prothorax,  sides  not  rounded,  strife  deep,  punctured,  interspaces  flat, 
each  with  a  row  of  longish  white  hairs.     Lengtli  1.7  mm.;  .07  inch. 

Mariposa,  California  ;  Dr.  A.  Thevenet.  Wlien  the  scales  are  rubbed 
off  the  hairs  remain  giving  the  appearance  of  very  sparse  pubescence;  an 
excellent  instance  of  the  necessity  of  indicating  the  specific  differences  in 
Rhynchoplwra  from  form  and  sculpture,  rather  than  color  and  vestiture.  I 
have  a  partially  rubbed  specimen  from  New  York,  which  only  differs  by 
the  scales  being  more  white. 

10.  S.  fulvus,  n.  sp. 

Black,  densely  clothed  with  rather  small  bright  fulvous  scales.  Beak 
longer  than  head  and  prothorax,  nearly  straight,  smooth,  and  shining, 
slightly  punctulate  at  base.  Prothorax  about  as  long  as  wide,  broadly 
rounded  on  the  sides,  somewhat  narrowed  in  front,  and  feebly  con- 
stricted, post-ocular  lobes  scarcely  distinct;  finely  and  densely  punctured. 
Elytra  oblong,  one  third  wider  than  the  prothorax,  convex,  striie  fine, 
punctured,  interspaces  nearly  flat.  Antennje  piceous,  second  joint  of  funi- 
cle  a  little  longer  than  third.  Legs  reddish-yellow,  hind  tibia;  not  mucro- 
nate,  claws  approximate,  not  connate.     Length  2.5  mm.;  .10  inch. 

One   specimen,  Missouri;   C.  V.    Riley.     This  species  differs  from  the 


LeConte.] 


ERIRHININI.  1 73 


others  ])y  the  straight  and  nearly  smooth  beak.  The  ventral  sutures  arc 
slightly  yet  distinctly  curved.  The  form  of  body  and  the  color  of  the 
scales  gives  a  resemblance  to  Sihynes,  from  which  it  is  abundantly  distin- 
guished by  the  simple  claws. 

11.  S.  sordidus,  n.  sp. 

Black,  elongate,  densely  clothed  with  rather  small  dirt}'  gray  scales. 
Beak  as  long  as  the  head  and  prothorax,  nearly  straight,  punctured,  tip 
smooth  and  shining.  Prothorax  longer  than  wide,  narrower  in  front, 
slightly  rounded  on  the  sides,  postocular  lobes  wanting.  Elytra  oblong, 
humeri  rounded,  prominent,  sti'ioe  fine,  interspaces  flat.  Antcmnae  with 
the  funicle  rather  slender,  second  joint  longer  than  third.  Claws  rather 
large,  approximate,  not  connate.     Length  2  mm.;  .08  inch. 

Texas.  Exactly  resembles  in  appearance  8.  griseus,  but  difl'ers  by  the 
larger  claws,  and  more  slender  antennae. 

12.  S.  cinereus  Motsch.,  Bull.  Mosc,  1845,  ii,  376. 

California  and  Vancouver  Island;  G.  R.  Crotch  ;  Dr.  Thevenet.  Easily 
known  by  its  larger  size  (2.5  mm.;  .10  inch),  prothorax  with  rounded 
sides,  and  mottled  color;  a  few  short  hairs  are  mingled  with  the  scales, 
which  are  broad  oval.  The  prothorax  is  thickly  punctured,  and  distinctly 
constricted  near  the  tip.  The  elytra  are  comparatively  longer  and  less 
convex  than  in  the  neighboring  species,  thus  producing  a  resemblance  to 
Dorytovius. 

13.  S.  squamulatus,  n.  sp. 

Black,  densely  clothed  with  rather  large  oval  gray  scales,  mottled  Avitli 
brown  upon  the  elytra.  Beak  brown,  longer  than  head  and  prothorax, 
slender,  nearly  straight,  shining  at  tip,  punctured  and  pubescent  at  the 
base.  Prothorax  as  long  as  wide,  rounded  on  the  sides,  narrower  in  front, 
postocular  lobes  not  distinct.  Elytra  oblong,  one-third  wider  than  the 
prothorax,  humeri  rounded,  prominent,  strite  tine.  Auteuna3  brown,  with 
second  joint  of  funicle  scarcely  longer  than  third.  Legs  brown,  claws 
small,  connate  for  about  one-half  their  length.     Length  2  mm.;  .075  inch. 

Two  specimens,  Detroit,  Michigan  ;  Messrs.  Hubbard  and  Schwarz. 
An  inconspicuous  species,  which  may  be  easily  recognized  by  the  fore- 
going characters. 

14.  S.  corniculatus.  Tychius  corn.,  Fahneus,  Sch.  Cure,  vii.,  2d,  309. 
Middle  and  Western  States.     A  very  smull  species,  easily  known  by  the 

narrow  scales  and  rounded  sides  of  the  prothorax.  Length  1.6  mm.; 
.065  inch. 

Dark  bi'own,  not  very  densely  clothed  with  narrow,  small,  whitish  and 
yellowish  scales.  Beak  as  usual.  Prothorax  as  long  as  wide,  narrowed  in 
front,  much  rounded  on  the  sides,  convex,  densely  and  coarsely  punctured. 
Elytra  suddenly  one-half  wider  than  the  prothorax,  elongate,  not  rounded 
on  the  sides,  stria3  deep,  punctured,  interspaces  flat.  Autenuoe  and  legs 
I)aler  brown.     Claws  very  small,  partly  connate. 


174  CURCULIOXID^. 


[LeConte. 


Kansas;  one  specimen .  A  very  small  species,  related  io  S.  tyrJiioides, 
and  easily  known  by  the  narrow  scales  and  rounded  sides  of  the  prothorax. 
The  scales  are  partly  abraded,  but  appear  to  be  mottled  in  color. 

Group  III.     Kugnoini. 

Following  the  example  of  Lacordaire,  I  recognize  as  a  distinct  group  a 
small  number  of  genera  which  are  closely  related  to  the  Erirliini  proper, 
and  like  them  have  the  antennal  gi'ooves  directed  against  the  eyes  ;  they 
differ  in  having  the  eyes  larger  and  more  prominent,  and  separated  from 
the  margin  of  the  prothorax  by  the  head  being  more  or  less  prolonged  be- 
hind. The  head  thus  recalls  the  form  already  seen  in  Rhinomacer  and 
BhyncMtes,  though  otherwise  there  is  no  resemblance. 

The  two  species  in  my  collection  resemble  in  appearance  small  Dorytomus 
but  the  thighs  are  unarmed,  and  the  second  joint  of  the  funicle  of  the 
antennaj  is  short. 

I  will  for  the  present  refer  them  to  the  genus  Phyllotrox,  though  they 
differ  from  the  description  given  by  Lacordaire  (Gen.  Col.  vi,  505),  by  the 
first  ventral  suture  being  well-marked. 

PHYLLOTROX   Sch. 
1.  P.  nubifer,  n.  sp. 

Elongate,  fuscous,  thinly  clothed  with  golden  pubescence  ;  antennae,  legs 
and  elytra  fulvous,  the  latter  with  the  suture  and  scutellar  region  more  or 
less  blackish.     Length  1.8-2.3  mm. ;  .075-09  inch. 

San  Francisco,  California  ;  collected  by  myself. 

Beak  rather  stout,  nearly  as  long  as  the  prothorax,  punctured,  feebly 
channeled  from  between  the  antennae  for  a  short  distance;  eyes  rather  large, 
prominent ;  antennoe  yellow,  with  the  scape  reaching  to  the  eyes.  First 
joint  of  funicle  stout,  and  moderately  long,  followed  by  six  short  joints, 
club  oval,  pubescent.  Prothorax  not  lobed  behind  the  eyes,  longer  than 
wide,  narrowed  in  front,  feebly  rounded  on  the  sides,  slightly  constricted 
near  the  tii),  rather  densely  punctured,  thinly  clothed  with  shining  yellow 
hair.  Elytra  wider  than  the  prothorax,  elongate,  humeri  rounded,  striae 
with  close-set  punctures,  interspaces  densely  punctulate,  and  sparsely 
pubescent,  brownish-yellow,  with  the  scutellar  region  and  frequently  the 
suture  dark.  Body  beneath  dark,  strongly  punctured  ;  abdomen  and  legs 
brownish-yellow.  Thighs  not  toothed,  rather  thick  ;  tibiae  stout,  truncate 
and  not  armed  at  tip,  tarsi  rather  broad,  third  joint  wider,  deeply  bilobed; 
claws  simple,  divergent. 

This  insect  strongly  resembles  the  figure  of  Braclionyx  indigena  Ilerbst, 
as  given  by  Duval,  Gen.  Col.  Eur.  iv,  pi.  19. 

I  have  seen  a  variety  from  Colorado  in  the  collection  of  Mr.  Ulke,  in 
■which  the  color  is  bright  yellow,  only  the  head,  trunk  beneath,  and  the 
suture  near  the  base  of  the  elytra  are  dark. 

3.  P.  ferrugineus,  n.  sp. 

Smaller  than  the  preceding,   entirely  ferruginous,   sparsely  pubescent. 


LeConte.] 


erirhi:nini.  175 


Beak  slender,  curved,  longer  than  the  prothorax,  sparsely  punctured,  eyes 
smaller,  prominent ;  head  punctured.  Prothorax  scarcely  longer  than 
wide,  gradually  narrowed  in  front,  feebly  rounded  on  the  sides,  slightly 
constricted  near  the  tip,  strongly  not  densely  punctured.  Elytra  wider 
than  the  prothorax,  humeri  rounded,  striae  deeper  and  more  strongly  punc- 
tured than  in  the  preceding,  interspaces  more  convex  and  less  punctulate. 
Body  beneath  coarsely  punctured.  Length  1.5  mm.;  .06  inch. 
One  specimen,  Florida  ;  collected  by  Dr.  E.  Brendel. 

Group  IV.     Cryptopli. 

In  this  group  the  body  is  densely  clothed  with  scales,  forming  usually  a 
shining  crust ;  the  beak  is  cylindrical  and  curved,  not  separated  from  the 
head  by  a  transverse  impression  ;  the  antennal  grooves  commence  about 
one-third  from  the  end,  and  run  directly  towards  the  eyes  which  are  lat- 
eral, oval,  transverse,  coarsely  granulated  and  not  approximate  beneath. 
Funiculus  of  the  antennae  in  some  genera  6-jointed ;  first  joint  long,  the 
others  short,  increasing  gradually  in  breadth,  and  sometimes  passing  insen- 
sibly into  the  club,  wiiich  is  rather  large,  oval,  annulated  and  pubescent. 
Prothorax  with  broad  postocular  lobes,  front  coxae  large,  prominent,  con- 
tiguous, prosternum  transversely,  very  deeply  impressed  but  not  excavated 
in  front  of  the  coxae,  or  deeply  Cmarginate.  The  legs  are  not  very  slender, 
the  thighs  moderately  clavate,  the  tibiae  sinimte  on  the  inner  side,  as  long  as 
the  thighs,  truncate  and  mucronate  at  tip,  with  the  articular  surface  ter- 
minal ;  the  front  tibiae  sub-serrate  from  the  middle  to  the  tip.  Tarsi  broad 
with  the  fourth  joint  short,  variable  in  form  (absent  in  the  European  Ano- 
plus),  third  joint  broad  deeply  bilobed.     Elytra  with  ten  entire  striae. 

Last  joint  of  tarsi  broad,  claws  distant 2. 

"    narrow,  with  one  claw BRACHYBAMUS. 

"        "  "  projecting,      with     two 

slender  claws ONYCHYLIS. 

Elytra  slightly  wider  than  the  prothorax ENDALUS. 

"      much            "                    "              TANYSPHYRUS. 

ENDALUS  Lap. 

This  genus  was  first  described  by  Schonherr,  under  the  previously  used 
name  Notiopliilus.  The  error  was  recognized  and  corrected  in  Vol.  vii  of 
his  work,  and  the  name  changed  to  Notiodes.  Meanwhile,  however,  En- 
dalus  had  been  proposed  by  Laporte,  in  a  systematic  work,  and  being  ac- 
companied by  proper  description  must  of  course  take  precedence.  The 
species  occur  on  grasses  near  water  ;  of  those  described  thus  far,  only  one 
properly  belongs  to  the  genus,  the  others  will  be  found  under  Onycliylis 
and  Lissorhoptrus.  The  funicle  is  6-joiuted,  and  in  some  of  the  species 
IJasses  gradually  into  the  club. 


176  CURCULIOXID.E.  [LeConte 

The  species  form  two  groups,  quite  different  in  form,  the  elytra  being 
very  distinctly  wider  than  the  prothorax  in  the  first. 

A.  Last  joint  of  tarsi  slightly  prominent,  claws  moderately  large,  elj^tra 

wider  than  the  prothorax. 

Scales  with  bristles  intermixed 1,  setosus. 

"      uniform,  without  bristles  intermixed 2- 

3.  Prothorax  not  coarsely  punctured , 3. 

"           coarsely  punctured 4. 

3.  Scales  gray,  length  4  5  mm  2.  limatulus. 

"       bronzed,     "    2  mm 3.  seratus. 

4.  Prothorax  scarcely  wider  than  long 4    cribricollis. 

"  transverse,  constricted  in  front 5.  punctatus. 

B.  Last  joint  of  tarsi  not  prominent;  body  oval 6.  ovalis. 

1.  E.  setosus,  n.  sp. 

Dark  brown,  with  scattered  short  erect  bristles,  prothorax  broader  than 
long,  much  rounded  on  the  sides,  suddenly  narrowed  and  constricted  at 
the  tip,  deeply  and  closely  though  not  coarsely  punctured,  marked  with 
four  narrow  lines  of  pale  scales  having  a  metallic  lustre.  Elytra  a  little 
wider  than  the  prothorax,  elongate  ;  humeri  rounded,  not  oblique,  sides 
feebly  converging  behind,  tip  obliquely  narrowed,  uniform  brown;  striae 
fine,  interspaces  feebly  convex;  sides  as  far  as  the  eighth  stria,  and  under 
surface,  covered  with  pale  scales;  antennre  and  legs  ferruginous.  Length 
4  mm.;  .10  inch. 

Texas  ;  Mr.  Belfrage.  The  last  tarsal  joint  is  broad,  and  extends 
slightly  beyond  the  lobes  of  the  third  joint  ;  the  claws  are  large  and 
divaricate.  The  prothorax  differs  in  form  in  the  two  sexes,  in  the  same 
manner  as  in  the  next  species. 

Two  smaller  specimens  are  entirely  similar  to  the  preceding  in  form  and 
sculpture,  the  elj'tra  are  covered  with  dirty  gray  scales,  with  a  large  com- 
mon discoidal  dark  brown  spot,  extending  from  the  base  for  four-fifths  of 
the  length,  with  prolongations  on  the  third  and  fifth  interspaces,  causing 
the  outline  to  be  irregular;  there  are  also  two  clouds  on  the  sixth  inter- 
space, and  one  at  the  humerus.     Length  3.5  mm.;  .14  inch. 

Middle  States  not  rare;  Kansas,  Texas.  The  prothorax  is  much  more 
rounded  on  the  sides  in  the  (^  than  in  the  9  • 

3.  E.  limatulus  Lap.,  Hist.  Nat.  An.  Artie,  ii,  339  (1840);  NotiopMlus  || 
Um.  Gyll.,  Sell.  Cure,  iii,  319;  Notiodes  liin.  ib.  vii,  2,  183. 

4.  E,  seratus,  n.  sp. 

Smaller,  dark  brown,  covered  with  gray  and  brown  scales  having  a 
metallic  reflection;  prothorax  a  little  wider  than  long,  sides  rounded  espe- 
cially in  front,  tip  narrowed  and  constricted,  punctures  deep  and  close,  not 
coarse;  disc  with  two  brown  vittpe.  Elytra  suddenly  one-half  wider  than 
the  prothorax,  humeri  oblique,  obtuse,  feebly  rounded;  strife  composed  of 
approximate  quadrate  punctures,  interspaces  not  convex,  disc  with  a  large 


LeConte.] 


EEIRHININI.  177 


common  brown  cloud  extending  from  the  base  thee-fourths  the  length; 
suture  for  the  same  distance  blackish;  beneath  dirty  gray.  Length  3.3 
mm. ;  .09  inch. 

Two  specimens,  Texas:  Mr.  Belfrage.  Tarsi  as  in  the  preceding  species. 
In  some  specimens  the  variation  in  tint  is  scarcely  apparent,  and  the  whole 
upper  surface  is  of  a  dull  golden  color. 

5.  E.  cribricollis,  n.  sp. 

Blackish  brown,  covered  Avith  grayish  scales;  prothorax  subquadrate, 
scarcely  wider  than  long,  sides  nearly  straight,  a  little  rounded  near  the 
tip,  which  is  constricted  ;  surf\ice  very  coarsely  and  deeply  punctured. 
Elytra  suddenly  one-third  wider  than  the  prothorax,  humeri  rounded, 
striiB  deep,  slightly  punctured,  interspaces  nearly  flat,  disc  with  a  faint 
brownish  cloud  behind  the  middle.     Length  2.3  mm. ;  .09  inch. 

One  specimen,  Georgia.  The  last  tarsal  joint  is  a  little  shorter,  and  the 
claws  smaller  than  in  the  preceding  species. 

6.  E.  punctatus,  n.  sp. 

Smaller  and  more  robust  than  E.  cribricollis,  with  the  prothorax  wider  than 
long,  more  deeply  constricted  at  tip,  and  somewhat  less  coarsely  punctured. 
Elytra  a  little  wider  than  the  prothorax  brown,  with  a  darker  sutural 
stripe  ;  striae  deep,  more  distinctly  punctured  ;  legs  dark  testaceous. 
Length  1.8  mm.;  .075  inch. 

One  specimen,  Texas;  Mr.  Belfrage.  The  last  tarsal  joint  and  the  claws 
still  smaller  than  in  E.  cribricollis. 

7.  E.  ovalis,  n.  sp. 

Almost  regularly  oval,  black,  mottled  with  pale  gray  scales.  Prothorax 
wider  than  long,  narrowed  from  the  base  forwards,  rounded  on  the  sides, 
strongly  constricted  at  the  tip,  surface  deeply  but  not  coarsely  punctured,  with 
three  pale  vitt*.  Elytra  very  little  wider  than  the  prothorax;  gray,  with  a 
abbreviated  sutural  stripe,  and  frequently  some  mottliugs  of  dark  brown; 
stria3  deep,  feebly  punctured.     Length  2.3  mm.;  .09  inch. 

New  York  and  California.  The  color  depends  on  the  extent  to  which 
the  crust  of  gray  scales  is  preserved. 

Several  much  smaller  specimens  from  California,  Florida  and  Lake  Sup- 
erior have  the  prothorax  comparatively  more  coarsely  punctured,  but  do  not 
show  any  other  difference.     Length  1.5  mm. ;  .00  inch. 

TANYSPHYRUS  Sch. 

This  genus  barely  difters  from  Endalus  by  the  funicle  of  the  antennae 
more  slender,  with  the  joints  scarcely  increasing  in  thickness;  the  pro- 
thorax narrower,  and  scarcely  rounded  on  the  sides;  and  the  elytra  fully 
one-half  wider  than  the  prothorax,  truncate  at  base,  with  the  humeri  more 
prominent  and  slightly  oblique.  The  last  joint  of  the  tarsi  does  not  pro- 
ject beyond  the  lobes  of  the  third,  and  the  claws  are  distant  and  divari- 
cated as  in  Endalus. 

As  Lacordaire  observes,  it  resembles  in  miniature  a  Orypidius. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  W 


178  CURCULIONID^. 


flieOonte. 


1.  T.  lemnse  GylL,  Scli.  Cure,  ii,  332;  Duval,  Gen.  Col.  Eur.  iv.  pi.  10; 
f.  47.     Bhynchoinus  lemn.  Fnbr.,  Syst.  El.  ii,  455;  cum  mult.  syn.  Europ. 

Detroit,  Mich.;  Messrs.  Hubbard  and  Schwarz.  A  very  small  insect 
(1.2  mm.;  .05  inch),  of  dull  black  color,  mottled  on  the  elytra  with  gray 
scales;  antennae  and  feet  brown.  It  agrees  so  accurately  with  the  descrip- 
tion and  figure  of  the  European  species  that  I  am  not  warranted  in  consid- 
ering it  as  distinct. 

BRACHYBAMUS  Germ. 

The  species  mentioned  below  resembles  in  form  Bagous,  but  is  at  once 
recognized  by  the  last  tarsal  joint  having  but  one  claw;  a  very  rare  char- 
acter, occurring  in  but  two  other  genera  in  our  fauna,  MononyrJms  and 
Barilepton,  which  have  otherwise  no  resemblance  to  this  genus,  nor  to 
each  other. 

1.  B.  electus  Germ.,  Sch.  Cure,  iii,  331;  Boh.,  ibid,  vii,  2,  185. 
Middle  and  Southern  States.    The  specimens  in  my  collection  agree  fully 

with  the  detailed  description  last  cited,  but  the  prothorax  is  constricted 
near  the  tip,  as  described  in  the  next.  I  think,  however,  that  the  differ- 
ences mentioned  are  illusory,  and  that  there  is  probably  but  one  species  in 
our  fauna. 

2.  B.  inceratus  Boh.,  Sch.  Cure,  vii,  2,  186. 

Boston;  coll.  Chevrolat.  Unknown  to  me;  said  to  differ  from  the  pre- 
ceding chiefly  by  the  second  interspace  of  the  elytra  being  wider  and  some- 
what elevated. 

ONYOHYLIS  n.  g. 

The  species  which  constitute  this  genus  are  very  similar  to  certain 
Bagous  in  form,  size  and  sculpture,  but  difler  by  having  the  last  tarsal 
joint  comparatively  smaller,  and  the  claws  slender  and  smaller.  They 
also  differ  by  having  the  articular  surface  of  the  hind  tibit^  apical, 
and  not  lateral ;  the  edge  of  the  articular  surfiice  is  fringed  with  small 
spines  as  in  many  ErirMni,  and  the  spine  at  the  inner  side  is  long  and 
slender,  resembling  at  first  sight  the  terminal  hook  of  Bagous.  The  fu- 
niculus is  6-jointed;  first  joint  longer  and  stouter,  second  a  little  longer  than 
the  third;  3-6  gradually  a  little  broader,  not  merging  into  the  club.  The 
third  joint  of  the  tarsi  is  moderately  dilated  and  bilobed  ;  fourth  joint 
-extending  beyond  it. 

Elytra  without  rows  of  setse 2. 

Alternate  interspaces  with  a  row  of  distant  setae 3.  alternans. 

-2.  Body  rather  stout '. 1.  nigrirostris. 

"     more  elongate 2.  long-ulus. 

1.  O.  nigrirostris  (Boh.)  Sch.  Cure,  vii,  2nd,  184,  (Notiodes). 

Southern  and  Western  States;  Michigan  to  Florida.  The  beak  is  black, 
shining  and  naked  in  9  ;  clothed  with  a  dense  coating  of  small  scales  in  (^ ; 
the  anal  segment  frequently  projects,  and  is  visible  beyond  the  elytra. 


LeConte.] 


EEIRHININI.  179 


This  species  differs  from  tlie  next  by  the  stouter  form,  and  the  prothorax 
broader  than  long,  more  rounded  on  the  sides,  and  more  strongly  con- 
stricted near  the  tip.  Well  preserved  specimens  are  covered  with  a 
uniform  crust  of  dirty  gray  scales;  the  middle  of  the  prothorax  and  the 
disc  of  the  elytra  are  most  frequently  abraded,  so  as  to  produce  a  pattern 
varying  in  extent  and  width.  Too  much  care  cannot  be  exercised  in  the 
study  of  the  species  of  this  and  the  next  group,  to  avoid  the  deceptive 
influences  of  abrasion;  the  specific  determinations  should  be  always  made 
upon  form,  structure  and  sculpture,  disregarding  color  and  pattern  as  of 
small  importance.     Length  3  mm.;  .13  inch. 

2.  O.  longulus,  n.  sp. 

Black,  covered  with  a  uniform  crust  of  dirtj^  gray  scales,  as  in  the  pre- 
ceding species;  antennae  testaceous,  club  fuscous.  Prothora^  as  long  as 
wide,  slightly  rounded  on  the  sides,  feebly  constricted  in  front,  very 
coarsely  punctured,  punctures  barely  visible  through  the  scales.  Elytra 
nearly  one-half  wider  than  the  prothorax;  humeri  oblique,  obtuse;  sides 
parallel  for  two-thirds  the  length,  then  rounded  to  the  tip;  striae  well  im- 
pressed, interspaces  slightly  convex,  alternate  ones  slightly  tesselated, 
without  setae.     Length  3  mm. ;  .12  inch. 

One  specimen,  Michigan;  Messrs.  Hubbard  and  Schwarz.  Only  difters 
from  the  preceding  by  the  narrower  form,  and  more  coarsely  though  less 
distinctly  punctured  prothorax. 

Without  examination  of  the  characters  of  the  group  and  genus,  this 
species  might  be  readily  confounded  with  Lissorlioptrus  simplex. 

3.  O.  alternans,  n.  sp. 

Blackish,  sparsely  setose  and  covered  with  a  mud  colored  crust;  beak 
cylindrical,  curved,  as  long  as  the  head  and  prothorax;  the  latter  wider 
than  long,  feebly  rounded  on  the  sides,  slightly  narrowed  but  not  con- 
stricted in  front,  coarsely  and  thickly  punctured.  Elytra  one-third  wider, 
humeri  oblique,  prominent,  disc  rather  flattened  in  front;  striae  and  punc- 
tures obscured  by  the  crust,  alternate  interspaces  distinctly  elevated,  and 
furnished  with  a  row  of  distant  rather  long  bristles;  tibiae  rather  stout, 
curved,  with  a  moderate  hook  at  tip;  tarsi  narrower  than  in  the  preceding 
species,  so  that  the  last  joint  seems  to  project  farther,  though  it  is  not  really 
longer.    Length  2.5  mm. ;  10  inch. 

Texas;  Belfrage;  two  specimens. 

Group  V.  Stenopelinl. 

This  genus  is  included  by  Lacordaire  in  his  group  Storeides,  but  it  seems 
to  me  that  the  remarkable  combination  of  characters  requires  that  it  should 
be  received  as  a  sepai-ate  group,  with  the  following  definition: 

Body  clothed  with  a  dense  crust  of  scales;  beak  short  and  broad,  not 
longer  than  the  head;  antenna!  grooves  very  short.  Antennae  inserted  on 
the  upper  rather  than  the  lateral  surface,  scape  long,  reaching  to  the  back  part 
of  the  eyes,  which  are  round,  and  coarsely  granulated;  funiculus  7 -jointed. 


180  cuRCULio:tiriD^. 


[LeConte. 


first  joint  longer  and  stouter,  remaining  joints  short,  closely  united;  club 
oval,  pointed,  entirely  pubescent,  annulated.  Prothorax  obliquely  truncate 
in  front,  without  postocular  lobes,  longer  on  the  disc  than  at  the  sides  ; 
prosternum  extremely  short,  not  emarginate  in  front.  Elytra  much 
wider  than  the  prothorax,  humeri  nearlj^  rectangular.  Ventral  segments, 
first,  second  and  fifth  very  large,  third  and  fourth  very  short,  last  ventral 
suture  slightly  curved.  Legs  slender,  thighs  not  toothed;  tibiae  truncate  at 
tip,  very  slightly  mucronate;  tarsi  narrow,  third  joint  not  broader,  slightly 
emarginate ;  fourth  joint  as  long  as  the  two  preceding ;  claws  slendei", 
divergent. 

Tliis  group  diverges  towards  Prionomerus  in  the  form  of  the  head  and 
antennae,  but  otherwise  has  no  resemblance  to  that  genus. 

STENOPELMUS  Sch. 

1.  S.  rufinasus  Gyll.,  Sch.  Cure,  iii,  469  ;  Panscop^t,s\  ruf.  Sch.,  ibid, 
vii,  3,  o."}!;  Monius  ritf.  Sch.,  ibid,  (corrigenda)  viii,  2nd,  501. 

Southern  and  Western  States,  to  California,  where  it  was  found  abund- 
antly by  Mr.  Crotch  and  myself  at  San  Diego.  The  reason  given  by 
Schonherr  for  changing  the  name  under  which  he  first  defined  this  genus  is, 
not  a  valid  one.  Even  if  there  were  in  Dejean's  Catalogue  a  genus  Stenop- 
elmus  (which  is  not  the  case  in  the  latest  edition),  it  could  have  no  prece- 
dence over  the  name  as  substantiated  by  description.  The  use  of  Monius  to 
indicate  this  genus  is  therefore  incorrect. 

Group  VI.     Brachypi. 

Tlie  genus  Bracliypus  is  placed  by  Lacordaire  in  his  group  Erirhinides  ; 
it  ditfers  from  the  other  genera  of  that  division  by  the  narrow  linear  form. 
Though  the  three  species  described  below,  do  not  exactly  agree  with  the 
generic  description  given  by  Schonherr  and  Lacordaire,  I  think  that  they 
accord  sutficiently  to  indicate  the  propriety  of  associating  them  together  as 
a  special  group. 

As  here  established,  the  Brachypi  are  nearly  related  to  Hydronomi,  but 
differ  by  the  third  joint  of  the  tarsi  being  more  or  less  bilobed,  and  the  hind 
tibiae  truncate  at  tip,  not  unguiculate,  but  only  feebly  mucronate,  with 
the  articular  surface  terminal.  The  tarsi  are  either  broad  or  narrow,  the 
third  joint  sometimes  but  little  dilated,  and  the  last  joint  long,  witli  large 
divergent  claws.  The  body  is  narrow,  covered  with  a  dense  water-proof  crust 
of  scales,  as  in  CryptopU  and  Hydronomi.  The  beak  is  straight,  cylindri- 
cal, moderately  stout,  and  as  long  as  the  prothorax  ;  the  antennal  grooves 
run  directly  to  the  eyes  and  converge  but  slightly  behind;  they  commence 
at  a  varying  distance  from  the  mouth.  The  antennae  are  slender  ;  funicle 
7-jointed,  first  and  second  joints  elongated  in  our  genera,  3-7  gradually 
broader,  club  oblong-oval,  annulated,  entirely  covered  with  sensitive  sur- 
fixce.  Prothorax  with  large  postocular  lobes,  prosternum  deeply  emarginate 
beneath,  not  excavated.  Legs  long,  slender,  thighs  moderately  clavate, 
front  and  middle  tibiae  slightly  sinuate,  feebly  mucronate  at  tip. 


LeUonte.]  ERmHININI.  181 

Tibuxj  not  serrate  on  the  inner  side ANCHODEMUS. 

Front  and  middle  tibiaj  serrate LIXELLUS. 

ANCHODEMUS  n.  g. 

I  have  established  this  genns  upon  three  narrow  species  resembling  in 
form  the  European  Bagous  {Lyprus)  cylindrus,  but  quite  different  by  the 
presternum  not  being  excavated,  and  by  the  tarsi  broad  and  hairy,  the  first 
and  second  joints  as  wide  as  long,  third  wider,  deeply  bilobed  ;  fourth  as 
long  as  the  two  preceding  united,  claws  large,  divergent ;  antennaj  inserted 
about  one-fourth  from  the  end  of  the  beak,  scape  reaching  the  eyes  ;  funic- 
ulus 7-jointed;  first  joint  stouter,  second  equal  in  length  to  the  first,  3-7 
short  and  gradually  broader  ;  club  elongate,  annulated.  Beak  as  long  as 
the  prothorax,  not  very  slender,  cylindrical ;  antennal  grooves  commen- 
cing one-tliird  from  the  tip,  scarcely  attaining  the  eyes,  which  are  large, 
transverse,  and  rather  coarsely  granulated.  Prosternum  broad,  somewhat 
flattened,  emarginate  in  front,  not  sulcate;  postocular  lobes  distinct,  coxae 
large,  prominent,  with  a  deep  transverse  impression  in  front  of  the  coxae. 

Scales  brownish-gray,  not  mottled 1.  angustus. 

grayish-white,     "  " 2.  Hubbardi 

"      brown,  elytra  with  a  paler  band 3.  Schwarzi. 

1    A.  angustus,  n.  sp. 

Elongate,  blackish-brown,  covered  Avith  a  dirt-colored  crust;  beak  slender, 
tip  naked  and  shining  ;  prothorax  longer  than  wide,  sides  parallel,  a  little 
narrowed  and  rounded  near  the  tip,  which  is  constricted,  base  oblique  each 
side,  obtusely  angulated  at  the  middle.  Elytra  about  one  fourth  wider  than 
the  prothorax  and  three  times  as  long,  humeri  oblique,  angulated;  striae 
punctured,  interspaces  nearly  flat,  each  with  a  row  of  very  small  bristles. 
Tibiae  slender,  slightly  bent ;  apical  hook  small  ;  antennse  and  legs  testa- 
ceous ;  second  joint  of  funicle  but  little  longer  than  first.  Length  4  mm. ; 
.15  indi. 

Michigan,  Hubbard  and  Schwarz  ;  Illinois,  "Walsh ;  New  York,  Ulke. 
Greatly  i*esembles  in  appearance  Ilydronomus  alismatis  of  Europe. 

3.  A.  Hubbardi,  u.  sp. 

Elongate,  black,  covered  with  a  dense  crust  of  grayish-white  scales. 
Beak,  antennas,  and  legs,  yellow-brown.  Beak  as  long  as  the  prothorax, 
nearly  straight,  naked,  shining,  finely  punctulate  and  slightly  pubescent  at 
the  base,  where  it  is  finely  cariuate  and  feebly  bisulcate  ;  frontal  fovea  dis- 
tinct. Prothorax  not  longer  than  wide,  slightly  rounded  on  the  sides,  dis- 
tinctly constricted  near  the  tip.  Elytra  about  one  fourth  wider  than  the 
prothorax,  humeri  rounded,  sides  parallel,  then  obliquely  narrowed,  tips 
separately  acuminate  and  rounded,  and  Siightly  thickened  ;  striae  obscured 
by  the  scales,  shallow  and  punctured.  Antennae  with  the  second  joint  of 
the  funicle  twice  as  long  as  the  first.  Tarsi  with  the  third  joint  bilobed, 
scarcely  wider  than  the  second.     Length  7.5  mm. ;  .30  inch. 

Detroit,  Michigan  ;  Messrs.  Hubbard  &  Schwarz.  A  fine  species,  of  large 
size  for  the  tribe  to  which  it  belongs. 


182  CUECULIOXID^. 


[LeConte. 


3.  A.  Schwarzi,  n.  sp. 

Elongate,  brown,  densely  clothed  with  brown  scales  ;  prothorax  trivit- 
tate  with  paler  :  eh'tra  clouded  with  pale,  and  with  a  broad  conspicuous 
common  angulated  band  behind  the  middle,  having  the  angle  at  the  suture 
directed  forwards.  Beak  as  long  as  the  prothorax,  stouter  than  in  the  other 
two  species,  straight,  densely  punctured,  slightly  pubescent,  not  shining. 
Prothorax  a  little  longer  than  wide,  very  slightly  rounded  on  the  sides,  not 
constricted  in  front.  Elytra  more  than  one-third  wider  than  the  prothorax, 
humeri  oblique,  slightly  rounded  ;  strife  fine,  well  impressed,  finely  punc- 
tured ;  tips  conjointly  rounded.  Antennte  and  legs  yelloAV-brown  ;  second 
joint  of  funicle  scarcely  longer  than  the  first ;  third  joint  of  tarsi  broad, 
bilobed.     Length  4.5  mm. ;  .175  inch. 

One  specimen,  Detroit,  Michigan  ;  Messrs.  Hubbard  &  Schwarz.  Easily 
recognized  by  the  stouter  beak,  and  conspicuous  paler  band  of  the  elytra. 

LIXELLUS    n.  g. 

A  small  species  of  still  narrower  form  constitutes  this  genus.  It  has  pre- 
cisely the  appearance  in  miniature  of  a  slender  Lixus,  and  diflers  from 
Ancliodemus  by  the  third  joint  of  tlie  tarsi  being  not  wider  than  the  second, 
and  not  bilobed  ;  the  fourth  tarsal  joint  is  as  long  as  the  others  united,  and 
the  claws  are  large  and  divergent.  The  thighs  are  less  clavate,  the  tibiae 
strongly  bent,  and  the  front  and  middle  pairs  are  serrate  on  the  inner  edge 
from  the  middle  to  the  tip  ;  they  are  all  feebly  mucronate  at  tip.  The  beak 
is  shorter  than  the  prothorax,  rather  stout,  nearly  straight,  and  the  anten- 
nal  grooves  commence  near  the  tip ;  the  funiculus  is  6-jointed,  with  the 
first  and  second  joints  longer,  the  joints  3-6  short,  slightly  wider,  club 
elongate  oval,  acute,  annulated,  pubescent. 

L.  filiformis,  n.  sp. 

Very  elongate,  c^dindrical,  black,  covered  with  extremely  small  brown 
scales,  mottled  in  color.  Beak  opaque,  punctulate,  and  scaly.  Prothorax 
longer  than  wide,  feebly  constricted  in  front,  sides  nearly  straight,  very 
densely  punctulate.  Elytra  little  wider  than  the  prothorax,  strisB  punc- 
tured, interspaces  flat ;  tips  conjointly  rounded  ;  antenna  and  legs  yellow- 
brown.     Length  4.3  mm. ;  .17  inch. 

One  specimen  from  Canada,  and  one  from  Oregon. 

Group  VII.     Ilydrononii. 

The  same  varnish-like  covering  noticed  in  the  three  preceding  groups  is 
retained  in  this,  the  species  of  which  are  also  found  on  plants  near  water. 
They  are  easily  distinguished  by  the  longer  and  more  slender  legs,  the  tibiae 
curved,  and  frequently  serrate  on  the  inner  side  and  strongly  hooked  at  tip. 
The  tarsi  are  usually  slender,  the  third  joint  frequently  not  dilated,  and 
the  last  joint  moderate  or  very  long,  with  stout,  simple,  divergent  claws. 
The  prosternum  is  usually  broadly  sulcate. 


LeConte.] 


ERIRHININI.  183 


Our  genera  may  be  tabulated  as  follows  : 

Club  of  autennaj  entirely  sensitive 2. 

"  "      partly  smooth  and  shining  ;  pros- 

ternuni  not  excavated LISSORHOPTRUS. 

2.  Prothorax  feebly  constricted  in  front BAGOUS. 

"  very  strongly  constricted  in  front. ...  PNIGODES. 

LISSORHOPTRUS  n.  g. 

This  is  the  genus  indicated  without  characters,  and  not  named  by  Lacor- 
daire.*  It  is  founded  upon  Bagous  simplex  Say.  It  difters  remarkably 
from  the  other  genera  of  the  group  by  the  antennae,  the  club  of  which  is 
smooth  and  shining  for  two-thirds  the  length,  and  annulatedonly  near  the 
tip  ;  the  funiculus  has  but  six  joints,  of  which  the  first  is  stout,  and  the 
second  a  little  longer  than  the  others,  which  increase  slightly  in  thickness. 
The  prosternum  is  flattened,  not  excavated,  transversely  impressed  in  front 
of  the  coxae,  which  are  very  large  ;  tibiae  not  very  slender,  somewhat 
curved,  armed  with  a  terminal  hook.  Tarsi  narrow,  last  joint  as  long  as 
the  two  preceding,  claws  slender,  approximate.  Beak  stout,  as  long  as  the 
prothorax.     Antennal  grooves  suddenly  deflexed. 

This  is  again  a  genus  of  transition,  and  only  differs  from  Onyehylis  by 
the  third  joint  of  tarsi  not  emarginate,  by  the  peculiar  antennal  club,  by 
the  tibiaj  armed  with  sti'onger  terminal  hook,  and  the  articular  surface 
even  of  the  hind  pair  lateral. 

1.  L.  simplex.  Bagou's  simplex  Say,  Cure.  29  ;  ed.  Lee.  i,  297  ;  Bagous 
egenus  Gyll.,  Sch.  Cure,  iii,  549  ;  Notiodes  eg.  ibid,  vii,  2,  184. 

Middle  and  Southern  States  to  Texas.  Say's  description  is  far  from 
sufficient. 

2.  L.  apiculatus.  Notiodes  apieulatus  Gyll.,  Sch.  Cure,  iii,  320. 
Southern  States  and  Texas.     Only  differs  from  the  preceding  by  the 

usually  larger  size,  and  by  the  transverse  impression  at  the  middle  of  the 
sides  of  the  prothorax  being  wanting. 

BAGOUS  Germ. 

The  essential  characters  of  this  genus  consist,  in  my  opinion,  in  the  tibisu 
being  slender,  strongly  curved  and  armed  at  the  tip  with  a  strong  hook,  so 
that  the  articular  surfaces  become  lateral;  the  tarsi  are  narrow,  not  spongy 
beneath,  though  the  third  joint  is  sometimes  wider  and  emarginate.  The 
claws  are  divergent,  sometimes  rather  large.  The  club  of  the  antennae  is 
entirely  pubescent,  sensitive,  and  larger  than  usual  ;  the  antennal  grooves 
are  deep  and  extend  to  the  eyes  ;  the  beak  varies  in  form.  The  proster- 
num is  broadly  and  deeply  excavated  in  front  of  the  coxae,  and  the  groove 
is  sharply  limited  at  the  sides  by  ridges  ;  the  postocular  lobes  are  large. 

*  Gen.  Ool.  vi,  489,  note  2. 


184  CUKCULIONID^.  [LeConte. 

The  species  may  be  tlins  separated  : 

Third  joint  of  tarsi  broader,  emarginate 2. 

"  "        narrow,  not  emarginate 5. 

2.  Elytra  each  with  one  posterior  tubercle 3. 

"         two        "        tubercles 1.  mamraillatus. 

3.  Interspaces  equal,  flat,  or  nearly  so 4. 

Alternate  interspaces  more  elevated 2.  sellatus. 

4.  Scales  uniform  pale  gray,  striai  less  deep 3.  planatus. 

"     gray  and  dark  brown  ;  strine  deeper 4.  obliquus. 

5.  Tarsi  very  long,  prothorax  finely  rugose 5.  americanus. 

"  short  ;  prothorax  scarred  with  deep  im- 
pressions    6. 

Tarsi  short,  or  moderate,  prothorax  strongly 
granulate 7. 

Tarsi  short,  or  moderate,  prothorax  feebly  granu- 
ulate 8. 

6.  Front  deeply  excavated,  beak  tricarinate., 6.  cavifrons. 

"      foveate,  beak  tricarinate 7.  magister. 

7.  Elytra  clouded  with  darker  scales ;    beak  long, 

tarsi  short 8.  iiebulosus. 

Elytra  uniform  in  color  ;  beak  short,  tarsi  long. .  9.  californicus. 
"        with  a  white  spot  behind,  beak  short,  tarsi 

long 10.  restrictus. 

Elytra  with  a  broad  black  band,  beak  short,  tarsi 

long 11.  pusillus. 

8.  Prothorax  not  transverse 12.  bituberosus. 

"           wider  than  long,  much  constricted  in 
front 13.  transversus. 

1.  B.  mammillatus  Say,  Cure.  28,  ed.  Lee.  i,  297;  Gyll.,  Sch.  Cure, 
iii,  539. 

Southern  and  Western  States.  Varies  in  size  from  2.4-3  mm.;  .09-1.3 
inch. 

2.  B.  sellatus,  n.  sp. 

Black;  head,  three  thoracic  vitta3,  sides  and  tip  of  elytra  densely  cov- 
ered with  cinereous  scales,  leaving  a  large  elongate  common  triangular 
space  black.  Prothorax  a  little  longer  than  wide,  coarsely  granulate,  sides 
parallel,  suddenly  constricted  near  the  tip.  Elytra  with  the  humeri  oblique 
and  obtusely  angulated,  striae  deep,  interspaces  convex,  first,  third,  and 
fifth  more  elevated,  the  last  terminating  in  a  large  conical  tuberosity,  which 
is  surrounded  behind  by  a  dark  cloud.  Beneath  fuscous,  thighs  with  a 
ring  of  paler  scales.  Tarsi  with  the  third  joint  broader,  emarginate. 
Length  2.5  mm.;  .10  inch. 

One  specimen,  Georgia.  The  common  triangular  spot  extends  from  the 
humeri  to  the  suture  upon  which  it  ends  at  about  two-thirds  the  length  ; 
there  is  also  on  each  elytron  a  marginal  cloud  behind  the  humerus,  and  a 
small  subapical  one  behind  the  large  tuberosity. 


LoUonte.]  ERIEHININI.  185 

3.  B.  planatus,  u.  sp. 

Black,  uniformly  and  densely  clothed  with  dark  cinereous  scales.  Beak 
punctured,  neai'ly  naked,  .stout,  curved,  nearly  as  long  as  the  prothorax  ; 
the  latter  is  a  little  longer  than  wide,  sides  parallel,  suddenly  constricted 
near  the  tip,  disc  coarsely  granulate,  feebly  channeled.  Elytra  wider  than 
the  prothorax,  humeri  less  oblique,  angulated,  more  prominent,  stria;  fine, 
interspaces  very  flat,  fifth  with  a  conical  tubercle  on  the  posterior  declivity, 
third  with  an  obsolete  elevation  at  about  two-thirds  the  length.  Aiitennte 
and  feet  dark  testaceous ;  tarsi  with  third  joint  broader,  emarginate. 
Length  3  mm.;  .12  incli. 

Lake  Superior  and  New  York.  Related  to  B.  mammillat'us,  but  the 
stria}  of  the  elytra  are  finer,  the  interspaces  still  more  flat,  the  tubercles 
much  smaller,  the  anterior  one  being  hardly  apparent,  and  the  scales  purer 
gray,  approaching  lead  color. 

4.  B.  obliquus,  n.  sp. 

Rather  elongate,  black,  variegated  with  pale  and  dark-brown  scales. 
Beak  as  long  as  the  prothorax,  stout,  curved,  flattened  above,  lateral  grooves 
not  deep  ;  front  with  a  short  impressed  line.  Prothorax  longer  than  wide, 
broadly  constricted  at  some  distance  from  the  tip  ;  coarsely  granulated, 
dark  brown  with  a  broad  pale  lateral  stripe.  Elytra  nearly  one-half  wider 
than  prothorax,  humeri  oblique,  rounded,  posterior  callus  not  very  promi- 
nent, apex  oblique,  narrowly  rounded  ;  strife  deep,  interspaces  slightly 
convex  ;  dark  brown,  with  an  oblique  pale  band  commencing  at  the  hume- 
rus and  reaching  the  suture  a  little  behind  the  middle  ;  there  are  also  a  few 
pale  spots  on  the  third  and  fourth  interspaces.  AntennsB  and  legs  brown, 
third  joint  of  tarsi  a  little  wider,  emarginate  ;  claws  small.  Length  2.3 
mm.;  .09  inch. 

Detroit,  Michigan,  and  Florida  ;  Messrs.  Hubbard  and  Schwarz  ;  many 
specimens.  The  prothorax  varies  slightly  in  form  ;  the  sides  are  nearly 
straight  behind,  and  usually  parallel ;  sometimes,  however,  they  converge 
slightly,  so  that  the  widest  part  is  in  front  of  the  middle.  The  last  joint 
of  the  tarsi  is  shorter  and  the  claws  smaller  than  in  B.  planatus. 

5.  B.  americanus,  n.  sp. 

Elongate,  black  or  brown,  covered  uniformly  with  silvery-gray  scales  ; 
prothorax  longer  than  wide,  sides  feebly  rounded,  a  little  narrowed  and 
broadly  constricted  near  the  tip,  obscurely  granulate.  Elytra  wider  than 
the  prothorax,  humeral  angles  obtuse,  almost  rounded,  striae  fine,  distinctly 
punctured.  Antennte  and  legs  testaceous,  the  latter  long  and  slender,  tibiae 
strongly  hooked,  curved  and  armed  with  a  row  of  small  distant  teeth  on 
the  inner  face.  Tarsi  longer  than  usual,  joints  1-3  equal,  fourth  equal  to 
the  two  preceding.     Length  4  mm. ;  .16  inch. 

Middle  States  and  Canada.  I  have  adopted  the  name  given  in  Dtg can's 
Catalogue.  Easily  known  by  its  large  size  and  elongate  form  ;  there  is  a 
marked  difference  in  the  beak  of  the  two  sexes  ;  that  of  the  male  is  stout, 
shining,  very  finely  punctulate,  not  longer  than  the  prothorax,  and  about 

PBOC.  AMER.  PHILOS.  SOC.  XV.  96.  X 


186  CURCULIOXID^. 


[LeConte. 


one-half  as  wide  as  the  head  ;  in  tlie  female  it  is  slender,  one-third  longer, 
and  with  the  antennae  inserted  ahont  the  middle  of  the  length. 

6.  B.  cavifrons,  n.  sp. 

Black,  covered  with  slaty-black  ?cales.  Beak  shorter  than  the  prothorax, 
rather  stout,  scarcely  curved,  flattened  above  and  finely  tricarhiate,  lateral 
grooves  deep  ;  front  deeply  excavated  between  the  eyes.  Pi'othorax  longer 
than  wide,  gradually  slightly  narrowed  in  front,  constricted  near  the  tip, 
sides  not  rounded  ;  undulated  by  deep,  distant  anastomosing  grooves,  of 
which  the  most  conspicuous  forms  a  dorsal  channel  ;  surface  not  coarsely 
granulated.  Elytra  nearly  one-half  wider  than  the  prothorax,  humeri 
oblique,  scarcely  rounded,  sides  converging  behind,  ti^i  more  elongated 
and  more  narrowly  rounded  than  in  the  next  species  ;  posterior  callus 
prominent,  striic  punctured;  interspaces  broad,  slightly  uneven,  each  with 
a  row  of  very  short  whitish  bristles;  each  side  just  behind  the  middle  is  a 
small  oblique  spot  of  white  scales,  extending  from  the  fifth  to  the  second 
stria.  Antennae  and  legs  nearly  black ;  tibiae  long,  much  curved  ;  tarsi 
short,  slender.     Length  4.3  mm. ;  .17  inch. 

Enterprize,  Florida  ;  May;  one  specimen  ;  Messrs.  Schwarz  and  Hub- 
bard. Closely  related  to  the  next,  but  differs  by  the  deeply  excavated 
front,  and  elytra  more  narrowly  rounded  at  tip. 

7.  B.  magister,  n.  sp. 

Blackish-brown,  covered  with  dark-brown  scales.  Beak  as  long  as  the 
prothorax,  rather  stout,  slightly  curved,  somewhat  flattened  above,  and 
feebly  tricarinate,  lateral  grooves  deep;  front  with  an  elongate  large  fovea 
between  the  eyes.  Prothorax  longer  than  wide,  sinuate  on  the  sides,  more 
narrowed  towards  the  tip,  and  deeply  constricted  ;  surface  deeply  sculp- 
tured with  anastomosing  grooves,  with  a  broad  dorsal  channel  behind  the 
middle  ;  not  coarsely  granulated.  Elytra  nearly  one-half  AVider  than  the 
prothorax,  more  oblong  than  in  B.  cavifrons,  humeri  less  oblique  and  more 
rounded,  tips  more  obtusely  rounded ;  posterior  callus  prominent  ;  striae 
coarsely  punctured  ;  interspaces  slightly  convex,  eaeh  with  a  rc«v  of  very 
short  distant  bristles  ;  just  behind  the  middle  is  a  transverse  spot  of  pale 
scales  extending  from  the  fifth  to  the  third  stria  ;  the  alternate  interspaces 
are  variegated  with  pale-brown  spots.  Antennae  and  legs  nearly  black ; 
tibitxi  less  slender  than  in  B.  cainfrons,  tarsi  a  little  longer.  Length  5  mm. ; 
.20  inch. 

Texas,  Belfrage:  Detroit,  Hubbard  and  Schwarz  ;  Canada. 

8.  B.  nebulosus,  n.  sp. 

Rather  robust,  black,  clothed  with  dirty  gray  scales,  variegated  with 
darker  and  paler.  Beak  slender,  curved,  finely  punctulate,  naked,  except 
at  base,  as  long  as  the  prothorax  ;  front  feebly  channeled.  Prothorax 
wider  than  long,  coarsely  granulated,  sides  nearly  straight  for  more  than 
two-thirds  the  length,  then  obliquely  narrowed  and  feebly  constricted. 
Elytra  less  than  one-half  wider  than  ,the  prothorax,  oblong,  impressed 
obliquely   behind  the  base  ;    humeri  prominent,    rounded,    tips   broadly 


LeConte.] 


ERIEHII^INI.  187 


rounded,  separately  sub-acuminate  ;  striae  punctured,  interspaces  slightly 
convex,  each  with  a  row  of  rather  long  recliuate  bristles  ;  posterior  callus 
not  prominent.  Antennte  and  legs  dark  ;  tarsi  short.  Length  8.2  mm. ; 
.125  inch. 

One  specimen,  Point  Huron,  Mich. ;  Hubbard  and  Schwarz. 

The  markings  of  the  elytra  are  not  very  distinct ;  the  most  conspicuous 
is  a  i^ale  stripe  extending  on  the  fifth  and  sixth  interspaces  from  the  oblique 
impression  to  behind  the  middle,  where  it  is  flexed  rectangularly  and  runs 
to  the  suture. 

9.  B.  californicus,  n.  sp. 

Rather  robust,  black,  clothed  with  dark-gray  scales  of  uniform  color.  Beak 
stout,  curved,  shorter  than  the  prothorax,  scaly  ;  frontal  fovea  not  deep. 
Prothorax  wider  than  long,  coarsely  granulated  and  rugose  ;  sides  straight, 
diverging  slightly  from  the  base  for  two-thirds  the  length,  then  rounded 
and  narrowed  to  the  tip,  where  it  is  strongly  constricted  ;  with  a  broad 
dorsal  channel  near  the  base.  Elytra  nearly  one-half  wider  than  the  pro- 
thorax, humeri  oblique,  slightly  rounded  ;  sides  parallel,  then  obliquely 
narrowed,  and  narrowly  rounded  at  the  tip  ;  disc  flattened  from  the 
suture  to  the  third  stria,  and  from  the  base  for  three-fifths  the  length,  striae 
fine,  interspaces  slightly  convex  ;  posterior  callus  prominent  ;  there  is  a 
feeble  tubercle  on  the  third  interspace  at  about  two-thirds  the  length. 
Antennae  and  legs  reddish-brown  ;  tarsi  long.     Length  2.8  mm.;  .11  inch. 

One  specimen,  San  Diego,  Cal. ;  G.  R.  Crotch. 

Differs  from  B.  restrictus  by  the  tubercle  on  the  third  interspace  behind 
the  middle,  and  by  the  absence  of  the  white  spot  which  occupies  a  similar 
position  in  that  species. 

10.  B.  restrictus,  n.  sp. 

Black,  covered  with  dirt-colored  scales,  beak  subcarinate,  nearly  as  long 
as  the  prothorax  ;  the  latter  as  wide  as  long,  slightly  wider  from  the  base 
forwards,  with  the  sides  straight,  for  three-fourths  the  length,  then  rounded 
and  suddenly  constricted,  more  strongly  than  in  the  other  species;  coarsely 
granulate.  Elytra  with  the  humeri  oblique,  obtusely  angulated,  less  pfomi- 
nent,  strife  deep,  interspaces  convex,  fifth  terminating  in  a  small  conical 
tubercle,  covered  with  white  scales  ;  there  is  also  a  small  transverse  white 
spot  on  the  second  and  third  interspaces  at  about  two-thirds  the  length. 
Antennae  tibiae  and  tarsi  brown,  third  joint  not  dilated,  fourth  longer  than 
the  two  preceding  united.     Length  2.5  mhi. ;  .10  inch. 

One  specimen;  Texas;  Belfrage.  The  tarsi  are  more  slender  than  in  the 
neighboring  species. 

11.  B.  pusillus,  n.  sp. 

Less  robust,  black,  clothed  with  dirt-colored  scales,  elytra  witli  a  broad 
toothed  transverse  band  behind  the  middle.  Beak  stout,  curved,  as  long 
as  the  prothorax,  scaly,  frontal  fovea  faint.  Prothorax  about  as  wide  as 
long,  sides  straight,  suddenly  rounded,  narrowed  and  strongly  constricted 
near  the  tip;  coarsely  granulated.     Elytra  nearly  one-half  wider  than  the 


188 


CUECULIOmD^.  [i^econte 


protliorax,  humeri  prominent,  oblique  and  rounded,  sides  nearly  parallel, 
then  oblique,  tips  rather  broadly  rounded,  posterior  callus  small,  very 
prominent ;  striae  fine,  interspaces  nearly  flat.  Antennae  and  legs  brown, 
tarsi  long.     Length  1.8  mm. ;  .07  inch. 

Capron,  Florida  ;  Hubbard  and  Schwarz  ;  one  specimen. 

The  black  band  extends  forwards  to  beyond  the  middle  on  the  third, 
fourth  and  fifth  interspaces,  and  is  prolonged  backwards  on  the  fifth  and 
sixth,  as  fixr  as  the  callus. 

12.  B.  bituberosus,  n.  sp. 

Black,  covered  with  dirt-colored  scales.  Beak  stout,  shorter  than  the 
protliorax,  which  is  of  the  same  form  as  in  the  preceding,  feebly  channeled 
and  more  finely  granulate.  Elytra  wider  than  the  prothorax,  humeri  less 
oblique,  obtuselj' angulated,  prominent;  striie  deep,  interspaces  convex,  fifth 
more  elevated  behind,  and  terminating  in  a  large  tuberosity  ;  the  third  is 
a  little  Avider  and  more  convex  tlian  the  adjoining  ones.  Antenufe,  tibife 
and  tarsi  dark  testaceous  ;  third  joint  not  dilated,  fourth  as  long  as  the  two 
preceding  united.     Length  3  mm. ;  .13  inch. 

One  specimen,  Kansas  ;  and  one  from  Florida. 

13.  B.  transversus,  u.  sp. 

Robust,  less  convex,  black,  covered  with  blackish-gray  scales.  Beak 
stout,  curved,  as  long  as  the  prothorax,  naked,  punctulate,  sub-carinate 
near  the  base,  lateral  grooves  deep;  frontal  fovea  large.  Prothorax  nearly 
one-half  wider  than  long,  sides  sinuate,  very  strongly  constricted  in  front, 
very  finely  granulate.  Elytra  uneven,  marked  with  vague  impressions,  one- 
half  wider  than  the  prothorax,  humeri  prominent,  slightly  rounded,  posterior 
callus  large,  obtuse  ;  striae  fine,  interspaces  feebly  convex.  Antennae  and 
legs  nearly  black,  tarsi  moderately  long.     Length  2.3  mm. ;  .15  inch. 

Detroit,  one  specimen;  Hubbard  and  Schwarz.  Remarkable  for  the  form 
of  the  prothorax,  by  which  an  excellent  transition  to  the  next  genus 
Pnigodes  is  established. 

PNIGODES  n.  g. 

This  new  genus  is  closely  related  to  Bagous,  and  has  the  prosternum 
similarly  excavated.  There  is  also  no  diflerence  in  the  beak,  which  is  stout 
and  curved,  nor -in  the  antennae,  which  have  the  funicle  7-jointed;  the 
first  joint  is  stouter  and  the  second  longer  than  the  others,  which  increase 
gradually  in  thickness,  and  the  club  is  pubescent  and  annulated.  The  legs 
are  stouter  than  in  Bagous,  the  tibiae  sinuate  on  the  inner  side,  hooked  at 
tip  ;  the  tarsi  rather  short,  joints  1-3  equal,  fourth  nearly  as  long  as  the 
others  united,  claws  divergent. 

The  form  of  body  is,  however,  remarkable.  The  prothorax  is  wider 
than  long,  narrowed  behind,  widely  lobed  on  the  sides  before  the  middle, 
then  suddenly  and  very  strongly  constricted  and  tubulate.  The  elytra  are 
wider  than  the  prothorax,  with  the  alternate  interspaces  elevated,  and  a 
callus  at  the  hind  extremity  of  the  fifth;  the  humeri  are  very  prominent 
and  rounded,  not  angulated. 


LieConte.] 


EEIEHININl.  189 


1.  P.  setosus,  n.  sp. 

Black,  covered  with  a  dirt-colored  crust  ;  prothorax  deeply  and  broadly 
channeled  ;  elytra  finely  striate  with  the  alternate  interspaces  elevated,  and 
bearing  each  a  row  of  long  bristles  ;  a  transverse  common  pale  spot  is  seen 
behind  the  middle,  extending  from  the  suture  to  the  third  stria.  The  an- 
tennte  and  legs  ai*e  brown.     Length  2.4-2.8  mm.;  .09-.12  inch. 

Texas,  Belfrage;  two  specimens. 

Group  VIII.  Pbycocoetes. 

This  group  is  established  upon  one  small  species  of  pale  brown  color, 
which  lives  under  sea-weed  cast  up  by  the  waves  at  San  Diego,  California. 
It  ditfers  greatly  from  all  the  other  members  of  the  tribe,  by  tlie  front 
coxfe  which  are  not  absolutely  contiguous,  but  separated  by  a  very  narrow 
lamina  of  prosternum,  and  by  the  very  short  metasternum,  only  one-third 
the  length  of  the  first  ventral  segment. 

In  color,  form  and  sculpture  it  resembles  Emphyastes,  but  differs  from 
that  genus  by  such  strong  structural  characters,  that  I  cannot  venture  to 
place  them  together  in  one  tribe. 

Body  clothed  with  very  sparse  pubescence.  Beak  cylindrical,  slightly 
curved,  as  long  as  the  prothorax,  not  very  slender;  mandibles  of  normal 
form;  antennal  grooves  commencing  near  the  tip,  extending  to  the  eyes, 
which  are  small,  rounded,  and  coarsely  granulated;  front  continuous  with 
the  beak.  Anteuna3  with  scape  extending  to  the  eyes,  funicle  7-jointed, 
first  joint  stouter  and  longer,  second  nearly  as  long  as  the  first,  3-6  rounded, 
seventh  transverse,  rounded;  club  rather  small,  oval,  annulated,  pubescent. 
Prothorax  oval,  longer  than  wide,  rounded  on  the  sides,  not  constricted 
nor  lobed  in  front.  Elytra  oval,  a  little  wider  than  the  prothorax,  humeri 
rounded,  not  prominent,  base  feebly  emarginate.  Prosternum  rather  long 
in  front  of, the  coxa?,  flattened,  not  sulcate;  joining  the  posterior  point,  so  as 
to  slightly  separate  the  front  coxte  which  are  large  and  globose.  Mesoster- 
num  declivous,  rather  widely  separating  the  middle  coxte;  side  pieces  with 
the  episterna  very  large,  and  the  epimera  very  small,  extending  along  the 
margin  of  the  elytra.  Metasternum  very  short,  side  pieces  very  narrow,  but 
distinct;  hind  coxae  oval,  very  widely  separated,  extending  to  the  margin 
of  the  elytra.  Ventral  segments,  first  longer  than  the  second,  separated 
by  a  sinuous  suture;  third  and  fourth  united  equal  to  second;  fifth 
shorter  than  second,  rounded  at  tip.  Legs  moderate,  thighs  clavate;  tibite 
slender,  nearly  straight,  slightly  mucronate  at  tip,  hind  pair  truncate,  but 
without  corbels;  tarsi  rather  short,  spongy  beneath;  third  joint  broader, 
deeply  bilobed;  fourth  as  long  as  the  two  preceding  with  rather  large 
diverging  simple  claws. 

The  generic  and  group  characters  are  combined  in  the  above  description. 

PHYCOCCETES  n.  g. 
1.  Ph.  testaceus,  n.  sp. 

Brownish  yellow,  darker  beneath;  above  not  very  shining.  Beak  nearly 
smooth.     Prothorax  very  sparsely  punctured,  with  a  hair  proceeding  from 


190  CURCULIONIDJE. 


[LeConte. 


each  puncture.  Elytra  elongate  oval,  a  little  wider  than  the  prothorax; 
striae  punctured,  becoming  obsolete  behind;  interspaces  each  with  a  row  of 
well-marked  distant  punctures,  from  which  proceed  fine  hairs.  Beneath 
finely  and  very  sparsely  punctured.     Length,  2.5  mm.;  .10  inch. 

San  Diego,  on  the  shore  of  the  bay,  under  sea-weed,  c^  with  the  first 
and  second  ventral  segments  broadly  concave;  anal  segments  large,  prom- 
inent. 

Tribe  VI.  TRA€HOi>lNI. 

The  genus  TracJioden,  which  occurs  in  Europe,  Asia  and  Alaska,  difl'ers 
suflEiciently  from  all  others  in  our  fauna  to  merit  being  placed  in  a  separate 
tribe.  Lacordaire  classed  it  with  the  Molytini,  which  however  seems  an 
unnatural  grouping  of  genera  agreeing  only  in  convex  body,  short  meta- 
sternum,  and  absence  of  wings.  The  beak  is  rather  slender,  as  long  as  the 
prothorax;  the  antennae  are  inserted  a  little  before  the  middle  (9)>  or  ^'^^- 
third  from  the  end  (cJ*),  rather  slender,  the  scape  reaching  the  inferior 
margin  of  the  eyes,  which  are  nearly  round,  coarsely  granulated,  and 
somewhat  removed  from  the  prothorax;  the  funiculus  is  7-jointed,  first  joint 
elongate  and  stout,  second  nearly  as  long,  but  slender,  3-7  short,  slightly 
increasing  in  thickness  ;  club  rounded  oval,  about  one-half  longer  than 
thick,  annulated,  pubescent,  tip  rather  pointed.  Prothorax  scarcely  lobed, 
but  ciliate  behind  the  eyes.  Epimera  of  metathorax  narrow,  entirely  cov- 
ered by  the  elytra;  hind  cox;e  rounded,  widely  separated,  not  attaining  the 
elytral  margin.  Ventral  segments,  first  and  second  large,  each  as  long  as 
the  metasternum,  separated  by  a  straight  suture  which  is  deeply  impressed 
at  the  sides;  third  and  fourth  short,  sutures  straight;  fifth  as  long  as  the  two 
preceding  united.  Legs  rather  long,  thighs  pedunculated,  not  toothed ;  tibiae 
slender,  strongly  hooked  at  tip;  tarsi  rather  long,  third  joint  wider,  bilobed, 
last  joint  elongate,  claws  simple,  slender,  separate.  Body  rough  with  short 
erect  bristles. 

TRACHODES  Germ. 

Elytra  uniformly  convex  without  elevations: 

Bristles  of  elytra  not  tufted 1.  ptinoides. 

Each  elytron  with  two  tufts  of  bristles 2.  quadrituberculatus. 

Elytra  with  large  elevations 3.  horridus. 

1.  T.  ptinoides  Germ.,  Sp.  Nov.  327;  Sch.  Cure,  iii,  513;  Mann.  Bull. 
Mosc.  1843,  293. 

Alaska  and  Vancouver  Island.  I  have  received  specimens  of  this  species 
from  Col.  Motschulsky  as  his  T.  faaciculatus,  Bull.  Mosc.  1845,  2nd,  374. 

2.  T.  quadrituberculatus  Mann.,  Bull. Mosc.  1852,  855;  Sthereus  quadr. 
Motsch.,  ibid.  1845.  ii,  375,  Tab.  vii,  f.  4. 

Alaska.  The  four  tubercles  of  the  elytra  seem  to  me  not  elevations  but 
bunches  of  bristles;  they  are  situated  on  the  third  interspace;  the  first  is 
about  one-fifth  from  the  base,  and  the  second  a  little  behind  the  middle;  the 
elytral  striae  are  rather  finer  than  in  the  preceding. 


LeConte.]  TRACIIODINI.  191 

3.  T.  horridus  Mann.,  Bull.  Mosc.  1852,  354. 

Alaska  and  Vancouver  Island.  The  three  rows  of  large  elevations  on 
each  elytron  easily  distinguish  this  species. 

Tribe  VII.  otidoci:phal,ini. 

In  all  the  preceding  tribes  the  tarsal  claws  are  simple,  usually  se]">arate 
and  divergent,  rarely  connate  ;  in  this,  as  in  several  of  those  which  follow, 
they  are  toothed  ;  the  tooth,  however,  is  broad  and  not  very  prominent, 
giving  the  form  tei'med  appendiculate.  The  species  are  easily  known  from 
those  of  other  tribes  by  the  prothorax  being  narrowed  at  base,  and  some- 
what pedunculate.  Several  of  them  are  shining  black  and  glabrous,  .so 
that  they  resemble  in  appearance  ants. 

Mr.  C.  V.  Riley,  wlio  has  hatched  several  specimens  of  OtklocepJialui  l<ievi- 
collU  from  the  galls  of  Cynips  quercus-rjlohulus,  informs  me  that  thcj^  have 
a  general  resemblance  to  an  apterous  Cynips. 

The  other  characters  of  the  tribe  and  genus  are  as  follows  :  Beak 
rather  stout,  straight,  nearly  as  long  as  the  prothorax,  subcylindrical, 
not  emarginate  at  tip;  antennal  grooves  extending  in  front  of  the  inser- 
tion of  the  antennae,  converging  behind,  directed  below  the  eyes,  which  are 
distant  from  the  prothorax,  rounded,  and  finely  granulated;  mandibles  of 
normal  form,  mentum  and  labial  palpi  small,  gular  peduncle  narrow, 
long;  antennae  inserted  about  one-third  from  the  tip  of  the  beak,  scape  long, 
slender,  extending  to  the  back  part  of  the  eyes;  funicle  7-jointed;  first  joint 
stouter  but  only  slightly  longer  than  the  second;  2-7  gradually  a  little 
wider,  rounded ;  club  oval  pointed,  pubescent,  feebly  annulated.  Pro- 
thorax without  postocular  lobes;  prosternum  broad,  short,  not  emarginate. 
Mesosternum  very  narrow  between  the  coxae,  side  pieces  almost  longitudi- 
nally divided.  Metasternura  long,  side  pieces  very  narrow.  Ventral  seg- 
ments nearly  equal,  sutures  straight,  well  marked,  intercoxal  process  obtuse, 
moderately  wide.  Front  coxae  rounded,  prominent;  middle  coxtc  rounded 
not  prominent;  hind  coxae  oval,  not  extending  to  the  elytral  margin. 
Legs  rather  long,  thighs  somewhat  clavate,  usually  toothed;  tibiae  trun(;ate 
at  tip,  not  mucronate;  articular  surface  terminal;  tarsi  dilated,  spongy 
])encath,  third  joint  broader,  bilobed;  claws  divergent,  more  or  less  toothed. 
Elytra  elongate-oval,  convex,  rounded  at  tip,  entirely  concealing  the 
pygidium. 

OTIDOCEPHALUS  Chevr. 

I  have  but  one  species  to  add  to  the  synopsis  given  by  Dr.  Horn,  in  Proc 
Am.  Phil.  Soc.  1873,  p.  448.* 

O.  dichrous,  n.  sp. 

Dull  ferruginous,  with  scattered  white  short  hairs,  prothorax  one-half 
longer  than  wide,  sides  slightly  rounded,   narrowed  behind,  coarsely  and 

*  O.  elegantulus  Summers,  New  Orleans,  Our  Home  Journal,  January  .30th,  1875, 
and  December  19th,  1875,  does  not  belong  to  this  genus,  but  to  Cylas,  a  genus 
thus  far  known  only  from  India  and  Africa.  It  will  be  found  under  the  family 
Brenthidce. 


192  .CUECULIONTD^. 


[LeConte. 


ratliei"  densely  punctured.  Elytra  elongate  oval,  wider  behind  the  base, 
striae  composed  of  approximate  punctures,  hairs  short,  not  erect,  distant, 
arranged  between  the  stris;  dull  ferruginous  at  base  for  onethird  the  length, 
then  black.  Beneath  dull  ferruginous,  punctured,  with  sparse  short  white 
hairs,  thighs  armed  with  a  small  tooth.     Length  5  mm. ;  .20  inch. 

Florida,  at  Lake  Harney  and  Enterprise,  on  old  leaves  of  Chammro'ps 
palmetto;  Messrs.  Hubbard  and  Schwarz.  Very  distinct  by  the  color  and 
short,  prostrate,  sparse  pubescence;  differs  from  the  Cuban  0.  Poeyi 
Chevr.,  by  the  distinctly  dentate  thighs. 

Tribe  VIII.     9IAGDAI.INI. 

As  the  pi'eceding  tribe  differs  from  all  others  with  the  front  coxre  con- 
tiguous, by  the  pedunculate  prothorax,  so  does  this  differ  by  the  hind 
angles  being  prominent,  and  more  or  less  produced  over  the  base  of  the 
elytra. 

The  beak  is  slender,  cylindrical,  as  long  as  the  prothorax  ;  the  antennal 
grooves  reach  the  lower  edge  of  the  eyes  which  are  rounded  and  distant 
from  the  prothorax.  Antenna}  inserted  near  the  tip,  (rj*),  or  about  the 
middle  of  the  beak  9)  slender,  feebly  geniculated;  scape  slender,  slightly 
clavate,  curved  near  the  end,  and  usually  attaining  the  eyes.  Front 
coxse  contiguous,  prominent ;  middle  coxse  not  widely  separated  ;  hind 
coxae  not  very  distant,  small,  oval,  not  extending  to  the  elytral  margin. 
Side  pieces  of  mesothorax  rather  large,  obliquely  divided.  Metasternum 
long,  episterna  rather  wide  ;  epimera  visible  behind,  ventral  segments 
unequal,  first  and  second  long,  connate,  with  a  faint  undulated  suture  ; 
inter-coxal  process  acute  ;  segments  3-.5  short,  equal.  Elytra  oblong,  not 
convex,  widely  separated  at  base  by  the  scutellum,  separately  rounded  at 
tip,  exposing  part  of  the  pygidium.  Legs  moderate,  thighs  not  clavate, 
sometimes  toothed,  tibiae  strongly  unguiculate  at  tip  ;  tarsi  spongy  beneath, 
third  joint  broader;  bilobed  ;  claws  sometimes  simple,  sometimes  toothed. 

MAGDALIS  Germ. 

To  the  excellent  synopsis  of  Dr.  Horn,  Proc.  Amer.  Phil.  Soc.  1873,  452, 
I  have  but  one  species  to  add  : 

1.  M.  aenescens,  n.  sp. 

Elongate,  black  bronzed,  slightly  pubescent ;  head,  beak  and  prothorax 
densely  finely  punctured,  the  last  longer  than  wide,  rounded  on  the  sides, 
which  are  serrate  in  front ;  hind  angles  small,  prominent,  base  bisinuate, 
disc  subcarinate  in  front  of  the  middle.  Elytra  obliquely  impressed  behind 
the  base,  and  also  behind  the  middle  ;  striae  composed  of  not  very  large 
punctures,  interspaces  finely  rugose.  Mesosternum  not  protuberant;  thighs 
acutely  toothed,  claws  distinctly  toothed  near  the  base.  Length  3.7-5.6 
mm. ;  .15-22  inch. 

Oi'egon,  kindly  given  me  by  Mr.  Ulke.  Quite  distinct  by  the  color  from 
all  our  other  species.  It  should  be  placed  between  M.  barhita  and  olyra  in 
the  synoptic  table  given  by  Dr.  Horn. 


LeConte.]  ANTHONOMTNT.  193 

Tribe  IX.      ANTHONOMIMI. 

This  tribe  is  represented  by  a  large  number  of  species  of  small  size,  and 
constituting  but  few  genera. 
They  may  be  distinguished  by  the  following  assemblage  of  characters  : 
Mandibles  normal  in  form,  gular  peduncle  long,  mentum  and  ligula 
small.  Beak  long,  slender,  cylindrical;  antennal  grooves  extending  to  the 
lower  edge  of  the  ej'es,  which  are  small,  convex,  rounded  and  distant  from 
the  protliorax,  widely  separated  above,  except  in  Orchestes,  and  a  few 
species  of  Anthonomus.  Antennje  inserted  far  from  the  tip  of  the  l^eak, 
slender,  scape  long,  funicle  G-  or  7-jointed;  club  elongate-oval,  pointed, 
entirely  pubescent,  and  sensitive,  very  distinctly  aunulated,  sometimes 
almost  articulated,  or  divided  into  separate  joints.  Protliorax  without 
postocular  lobes,  presternum  very  short,  not  emarginate  in  front,  coxse 
contiguous,  prominent.  Mesosternum  separating  moderately  the  coxoe; 
side  pieces  diagonally  divided.  Metasternum  moderately  long,  side  pieces 
narrow,  ventral  segments  separated  hj  deep  straight  sutures,  usually 
nearly  equal ;  third  and  fourth  segments  short  in  Alyca;  legs  rather 
long ;  thighs  frequently  clavate  and  toothed;  front  and  middle  tibiaj 
with  terminal  hooks;  hind  tibiae  mucronate  at  tip,  articular  surface  apical, 
and  not  lateral.  Tarsi  spongy  beneath,  third  joint  broad,  bilobed,  claws 
cleft,  toothed,  or  appendiculate.  The  elytra  are  separately  rounded  at 
tip,  so  as  to  expose  a  portion  of  the  pygidium  in  most  of  the  species,  but 
conjointly  rounded  in  MacrorJioptus  and  Alyca;  this  exposure  of  the  pygi- 
dium is  however  so  slight  in  some  species  that  it  is  evidently  a  character  of 
no  importance. 

Pygidium  more  or  less  exposed;  claws  toothed  2. 

' '          entirely  covered 4. 

2.  "          and  last  ventral  of  (^  normal 3. 

"  of   (5*   perpendicular,    last    ventral 

short,  emarginate COCCOTORUS. 

3.  Eyes  rounded  distant,  hind  thighs  normal ANTHONOMUS.  , 

"    approximate  above,    hind  thighs  thick- 
ened   ORCHESTES. 

4.  Ventral  segments  nearly  equal;  claws  toothed.    MAORORHOPTUS. 

"              "         very  unequal;  claws  appen- 
diculate   ALYCA. 

COCCOTORUS  Lee. 

This  genus  is  established  upon  a  species,  remarkable  as  well  for  its 
habits  as  for  the  singular  sexual  characters  of  the  J^.  In  this  sex,  namely, 
the  additional  dorsal  segment  is  large  and  perpendicular,  or  rather  sliglitly 
inflexed,  and  the  last  ventral  is  broadly  emarginate  behind,  so  that  at  the 
middle  it  is  shorter  than  the  fourth  segment.  The  elytra  are  more  obl-ong 
than  in  AntJionomus,  finely  and  densely  pubescent,  the  strict  fine  and  tlie 
interspaces  flat ;  at  the  base  are  two  small  tufts  of  hair  on  each  side,  and 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  Y 


194  CURCULIONID^. 


[LeConte. 


the  suture  is  also  tufted  with  longer  hairs.  The  antennse  are  slender,  the 
first  joint  of  the  funiculus  larger  and  stouter  ;  second  slender,  not  so  long, 
3-7  short,  but  not  increasing  in  thickness,  club  elongate,  oval,  pointed, 
articulated.  Thighs  moderately  clavate,  armed  with  an  acute  tooth  ;  front 
tibiaj  with  a  terminal  hook,  middle  and  hind  tibiae  truncate  ;  claws  sepa- 
rate, with  an  acute  tooth,  shorter  than  in  Anthonomus  and  not  curved 
inwards. 

1.  C.  scutellaris.  Anthonomus  scut.  Lee,  Proc.  Ac.  Nat.  Sc.  Philada. 
1858,  79;  Antli.f  prunicidal^'dX&\\,  Prairie  Farmer,  June  13,  1863;  Proc. 
Bost.  Soc.  Nat.  Hist,  ix,  309. 

Illinois,  Texas,  Georgia. 

The  larva  lives  upon  the  kernel  of  the  plum,  like  Conotraehelus  nen- 
ujjhar.  Mr.  Riley  informs  me  that  he  has  reason  to  believe  that  the  egg  is 
not  pushed  by  the  beak  of  the  female  deep  into  the  fruit,  as  is  the  case 
with  that  species,  but  is  laid  on  the  surface,  whence  the  larva,  when  first 
hatched  burrows  to  the  seeds. 

Mr.  Walsh  very  properly  suspected  that  this  insect  should  be  separated 
as  a  distinct  genus.  I  regret  to  have  led  him  into  error  by  not  recognizing 
the  species  as  identical  with  my  previously  described  A.  scutellaris,  which 
was  founded  upon  a  much  smaller  specimen  from  a  far  distant  locality. 

ANTHONOMUS  Germ. 

The  species  of  this  genus  are  quite  numerous,  and  although  agreeing  in 
the  more  important  characters,  difier  in  such  manner  as  to  indicate  the  pro- 
priety of  future  subdivision.  For  the  purpose  of  making  these  subdivis- 
ions natural,  a  profound  study  of  the  exotic  species  will  be  necessary.  I 
can  at  present  merel}^  mention  some  of  the  variant  structures  which  I  have 
observed. 

The  prosternum  varies  in  length,  being  shortest  in  A.  elegans,  and  long- 
est in  A.  rufipes  and  elongatus.  The  fifth  ventral  segment  is  not  longer 
than  the  fourth  in  most  species,  but  in  A.  elongatus  and  some  others  of 
Division  B  it  is  quite  distinctly  longer  and  flatter,  as  in  Erirhinini,  and 
in  these  species  the  pygidium  is  not  exposed.  The  ventral  sutures  are 
straight  in  most  species,  but  the  third  and  fourth  are  slightly  curved  in  A, 
conjunctus,  which  thus  shows  a  tendency  towards  TycMus.  The  claws  are 
usually  cleft,  or  ai-med  with  a  long  slender  tooth;  in  certain  species,  as  will 
be  seen  in  the  following  table,  the  tooth  is  broad,  or  even  so  obtuse  as  to 
be  indistinct.  The  funicle  of  the  antennae  is  usually  7-jointed,  but  in  the 
species  of  Division  C  only  six  joints  are  observed. 

These  characters  seem  to  be  similar  to  those  used  by  Lacordaire  for  se^- 
?a-Ai\ngi\\e.  gene\?i  o'l  Anthonomini,  (Gen.  Col.  VI,  577),  but  on  referring 
to  the  detailed  descriptions,  it  will  be  found  that  in  other  respects  the  spe- 
cies in  our  fauna  disagree.  I,  therefore,  deem  it  more  expedient  to  place 
them  all  in  AntJionomus.  The  following  table  will  enable  most  of  them  to 
be  easily  recognized. 


LeConte.] 


AN^THOXOMIXI. 


195 


A.  Body  above  more  or  less  pubescent,  rarely  with  a  few  scattered  scales. 
Funicle  of  anteniiiE  7-jointcd. 


Elytra  not  tuberculate 2. 

Elj'tra  tuberculate,  first  joint  of  funiculus  very 

long,  second  short,  front  thighs  bidentate 1.  quadrigibbus. 

.  Funicle  slender,  first  and  second  joints  longer.. . .  3. 

Funicle  less  slender,  second  joint  equal  to  third..  6. 

.  Front  thighs  with  a  single  tooth 4. 

"         "       bidentate : 

Teeth  confluent,  elytra  pubescent 2.  nebulosus. 

Teeth   separate,    elytra   with   narrow   pubescent 

markings 3.  fulvus. 

One  tooth  and  a  small  cusp;  surface  thinly  pubes- 
cent, elytral  striae  fine,  head  beneath  squamose  4.  gularis. 
,  Elytra  with  white  markings 5. 

Ferruginous,  elytral  striae  deep,  interspaces  con- 
vex   5.  profundus. 

Black,    prothorax    densely   punctured,    sparsely 

squamose 6    ater. 

Black,    prothorax    coarsely    punctured,     elytra 

brownish Y.  brunnipennis. 

Black,  middle  and  hind  thighs  not  toothed 8.  scutellatus. 

Brown  or  testaceous,  with  a  dark  elytral  band; 

all  the  thighs  toothed , 9.  signatus. 

Testaceous,  rather  densely  pubescent 7. 

Thinly  pubescent,  elytra  and  legs  ferruginous  . .  8. 

Thinly  pubescent,  elytra  partly  or  wholly  black.  9. 

Very  small,  ferruginous,  sparsely  squamose 21.  pusillus. 

Thighs  strongly  toothed,  elytra  Avithout  spots.  ...  10.  rubidus. 

Thighs  feebly  toothed,  elytra  with  a  dark  band. .  11.  juniperinus. 

Elytra    opaque,  prothorax  very  coarsely  punc- 
tured    12.  sycophanta. 

Elytra    shining,    prothorax  less  coarsely  punc- 
tured   13.  rufipennis. 

Elytra  with  a  few  small  spots  of  pubescence 10. 

Elytra    uniformly,    thinly    pubescent,     without 

spots 12. 

Front  foveate 11. 

Front  channeled 16.  sulcifrons. 

Elytra  partly  ferruginous,  striae  coarse 14.  suturalis. 

"      reddish  brown,  striae  coarse 15.  musculus. 

Antennae  piceous,  or  nearly  black 13. 

Antennae  yellow 17.  flavicornis. 

Elytral  striae  coarsely  punctured 14.. 

Elytral  striae  finely  punctured 18.  morulus. 


198  CUECULIONID^. 


[LeUonte. 


14.  Protliorax  very  coarsely  punctured 19.  nigrinus. 

Smaller,  prothorax  less  coarsely  punctured 20.  corvulus. 

B.  Body  clothed  above  and  beneath  with  dense  scaly  pubescence  ;  funicle 
of  antennae  7-jointed. 

Elytra  at  base  suddenly  wider  than  prothorax  2. 

Elytra  at  base  not  wider  than  prothorax 5. 

2.  Form  robust 3. 

' '    elongate 4. 

3.  Scales  beautifully  variegated 22.  elegans. 

Scales  uniform  in  color;  second  joint  of  funiculus 

longer  than  the  third 23.  squamosus. 

Elytra  more  or  less  vittate;  2d  joint  of  funiculus 

scarcely  longer  than  third 24.  tectus. 

4.  Pubescence  more  hair  like,  yellowish 25.  hirtus. 

Scales  broad,  whitish,  thighs  unarmed 26.  inermis. 

Scaly,  striped,  white  and  bi'own 27.  subvittatus. 

Scales  grayish,  thighs  tootlied 28.  pauperculus. 

5.  Funicle  with  second  joint  less  elongate 6. 

"            "        "          "    more      "      29.  disjunctus. 

6.  Rather  stout,  legs  ferruginous 30.  rufipes. 

Elongate,  legs  brown 31.  elongatus. 


O.  Funicle  of  antennoe  6  jointed. 

Claws  Avith  an  acute  tooth,  as  usual 2. 

' '      scarcely  toothed *7. 

"     with  a  short  tooth 8. 

2.  Elongate,  pubescent 3. 

Elongate,  densely  squamose 4. 

Robust,  clothed  with  scales 34.  robustulus. 

3.  Ferruginous,  without  lustre,  prothorax  with  a  dor- 

sal line  of  more  dense  pubescence 82.  crataegi. 

Fuscous  sparsely  pubescent,  elytra  with  two  bands 

of  small  spots 33.  subfasciatus. 

4.  Scales  viniform  in  color  6. 

mottled , 38.  decipieus. 

5.  Second  joint  of  funicle  equal  to  third 6. 

"            "              "      longer 39.  canus. 

6.  Length  2  mm 40.  affinis. 

Length  1.5  mm;  smaller  and  narrower 41.  nanus. 

7.  Elongate,  sprinkled  Avith  scales 35.  nubilus. 

' '        pubescent 36.  ungularis. 

8.  Elytra  fuscous,  with  a  posterior  sutural  spot  tes- 

taceous, and  bands  of  white  pubescence 37.  naixtus. 


LicConte.] 


AXTHONOMIA^I.  197 


1.  A.  quadrigibbus  Say,  Cure.  15;  ed.  Lee.  i,  277;  Sell.  Cure,  iii,  334. 

Massachusetts,  Illinois,  Texas.  Varies  in  size  from  3  mm.  (.125  inch) 
to  5  mm.  (.2  inch);  the  larger  specimens  are  more  robust  and  have  the 
elytral  tubercles  much  more  developed,  and  the  interspaces  more  uneven. 
The  beak  of  the  9  is  longer,  that  of  the  (^  shorter  than  the  body. 

2.  A.  nebulosus,  n.  sp. 

Dark,  rufous,  clothed  v^'ith  rather  coarse  ochreous  pubescence;  beak 
punctured,  finely  carinate,  with  two  striie  on  each  side  ;  head  densely 
punctured.  Protliorax  closely  and  coarsely  punctured,  wider  than  long, 
narrowed  in  front,  and  broadly  rounded  on  the  sides,  feebly  constricted 
near  the  tip.  Scutellum  densely  pubescent.  Elytra  at  base  one-half  wider 
than  the  prothorax,  oblong,  striae  distant,  not  deep,  coarsely  punctured, 
interspaces  feebly  punctulate,  shining  ;  pubescence  condensed  so  as  to 
make  a  pattern  of  bands  curving  forwards  and  outwards,  the  spaces  near 
the  bands  being  nearlj'  glabrous.  Thighs  strongly  toothed,  the  front  ones 
with  a  distinct  acute  cusp  on  the  distal  edge  of  the  tooth  ;  front  tibia3 
sinuate.  Antennae  with  the  first  joint  of  the  funiculus  equal  to  the  three 
following  ;  second  equal  to  the  two  following  united.  Length  4  mm. ; 
.15  inch. 

Illinois  and  Missouri  ;  three  specimens.  The  pattern  of  the  elytra  is 
somewhat  complex,  and  varies  with  denudation,  but  the  other  characters 
are  quite  sufficient  to  enable  the  species  to  be  easily  recognized. 

3.  A.  fulvus  Lee,  Pr.  Ac.  Nat.  Sc.  Phila.  1858,  79. 

Texas.  A  large  species  easily  recognized  by  the  shining  fulvous  color, 
very  coarse  punctures  of  tlie  thorax,  which  has  a  narrow  dorsal  line 
of  pubescence,  and  the  pattern  of  narrow  lines  of  pubescence  behind  the 
middle  of  the  elytra.  The  strife  are  scarcely  impressed,  distant  and  very 
coarsely  punctured.  The  antennae  are  as  in  the  preceding,  but  the  teeth 
of  the  front  thighs  are  longer  and  separate. 

4.  A.  gularis,  n.  sp. 

Elongate,  oWong,  black,  above  with  a  few  white  hairs,  head  beneath, 
and  sides  of  abdomen  with  dense  white  scales,  beak  finely  punctulate,  very 
obsoletely  striate,  head  opaque,  scarcely  punctulate,  with  a  small  puncture 
between  the  eyes.  Prothorax  a  little  wider  than  long,  rounded  on  the. 
sides,  narrowed  in  front  of  the  middle,  broadly  constricted  near  the  tip, 
convex  strongly  but  not  very  closely  punctured.  Scutellum  densely  pubes- 
cent. Elytra  about  one-fourth  wider  than  the  prothorax,  oblong,  very 
dark  red,  with  the  suture  blackish,  striae  distant,  well  impressed,  finely 
punctured,  interspaces  shining  flat,  nearly  smooth.  Antennae  ferruginous 
brown,  joints  as  in  the  two  preceding.  Legs  piceous,  base  of  thighs,  part 
of  tibiae  and  tarsi  paler  ;  thighs   strongly  toothed,   front  pair  with  a  very 


198  CURCULIOKID^. 


[LeConte. 


small  acute  cusp  beyond  the  base  of  the  tooth,  and  separate   from  it. 
Length  3.5  mm.;  .15  inch. 

One  specimen,  Middle  States.  Resembles  in  form  and  appearance  A. 
suhiralix,  but  is  much  larger,  aaid  the  antennae  and  front  thighs  are  quite 
diflerent. 

5.  A.  profundus,  n.  sp. 

Ovate,  ferruginous,  not  shining,  thinly  and  very  finely  pubescent;  beak 
punctured  and  striate,  head  sparsely,  distinctly  punctured,  with  an  im- 
pressed frontal  line.  Pi'othorax  as  long  as  wide,  sides  nearly  straight 
behind,  then  rounded  and  narrowed  in  front  of  the  middle,  broadly  con- 
stricted near  the  tip,  convex,  coarsely  and  tolerably  densely  punctured. 
Elytra  with  deep  and  wide  punctured  striae,  interspaces  convex,  finely 
rugose  and  punctulate.  Antennae  as  in  the  preceding  species,  with  the 
second  joint  of  the  funiculus  as  long  as  the  two  following.  Thighs  acutely 
toothed,  the  front  pair  without  accessory  cusp.     Length  3  mm. ;  .12  inch. 

Illinois,  two  specimens.  Larger  and  more  robust  than  A.  sycoplmnta, 
and  easily  known  by  the  deep  elytral  striae. 

6.  A.  ater,  n.  sp. 

Oblong,  ovate,  black,  thinly  pubescent  above,  clothed  with  white  scales 
on  the  prothorax  and  beneath  ;  beak  long,  slender,  shining,  sparsely  punc- 
tured; head  punctured,  frontal  line  long  and  fine.  Prothorax  wider  than 
long,  narrowed  in  front  from  the  base,  sides  broadly  rounded,  feebly  con- 
stricted near  the  tip,  closely  punctured,  punctures  bearing  white  scales, 
which  become  larger  and  less  sparse  towards  the  sides.  Scutellum  white, 
pubescent.  Elytra  one  third  wider  than  the  prothorax  at  the  base,  con- 
vex, striae  strongly  impressed,  punctured,  interspaces  slightly  convex, 
rather  shining,  feebly  rugulose.  Antennae  piceous,  scape  and  base  of 
funiculus  paler,  second  joint  of  latter  equal  to  third  and  fourth  united. 
Thighs  armed  with  a  small  acute  tooth,  tibiae  and  tarsi  piceous.  Length 
4.5  mm.;  .175  inch. 

Geysers,  California;  Mr.  Crotch. 

7.  A.  brunnipennis  Mannh.,  Bull.  Mosc.  1843,  ii,  292. 

One  specimen  found  with  the  preceding.  An  oblong  species,  resembling 
A.  suturalis  in  form  and  size,  Avith  the  beak  punctured  and  striate,  the 
head  punctured,  the  frontal  line  long  ;  the  prothorax  is  a  little  longer  than 
wide,  very  coarsely  and  densely  punctured ;  the  elytral  striae  punctured, 
distant,  not  much  impressed,  the  interspaces  flat,  nearly  smooth.  The 
antennae  are  testaceous  with  piceous  club,  second  joint  of  funiculus  equal 
to  third  and  fourth  united.  Legs  slender,  thighs  very  feebly  clavate, 
armed  with  a  very  small  acute  tooth,  almost  obsolete  on  the  hind  pair  ; 
tibis  nearly  straight.  Body  thinly  pubescent,  with  some  intermixed  scales 
towards  the  sides  and  on  the  under  surfsice. 

8.  A.  scutellatus  Gyll.,  Sch.  Cure,  iii,  342. 

Massachusetts,  Texas,  Missouri.  Of  the  same  size  as  the  next  species, 
and  widely  distributed. 


LeConte.] 


ANTHONOMINI.  199 


The  color  is  black,  with  the  antenaae  and  tarsi  testaceous;  the  front 
thighs  are  armed  with  a  very  small  tooth,  and  the  others  are  entirely  un- 
armed. The  markings  are  composed  of  scales,  and  in  well  preserved  spe- 
cimens the  sides  of  the  prothorax  and  the  trunk  are  also  squamose;  a  small 
post  scutellar  line  and  another  each  side  at  the  base,  and  an  indistinct  pro- 
thoracic  dorsal  line  are  also  whitish.  The  elytral  markings  stop  suddenly 
at  the  eighth  striae,  along  which  the  front  margin  of  the  curve  is  prolonged, 
thus  giving  an  oblique  outline.  The  color  varies  and  the  elytra  and  legs 
are  sometimes  dark  brown.  I  am  in  doubt  whether  this  species  is  properly 
identified  with  the  one  intended  by  Gyllenhal.  If  the  latter  be  not  the  one 
here  described,  it  is  probably  nothing  more  than  a  dark  variety  of  the  next 
species,  A.  subguttatus,  described  below,  also  agrees  moderately  well,  but 
the  elytra  are  not  piceous  and  the  beak  is  not  striate.  If  on  examining  the 
original  type  of  scutellatus  it  is  found  that  this  species  is  distinct,  it  may 
be  called  variegatus. 

9.  A.  signatusSay,  Cure.  25;  ed.  Lee.  i,  293;  Gyll.,  Sch.  Cure,  iii,  348; 
Boh.,  ibid,  vii,  2nd,  221,  var.  A.  bisignatus  Gyll.,  ibid,  iii,  344 

Massachusetts  to  Florida  and  Texas  ;  the  black  spot  visually  extends  from 
the  side  two-thirds  way  to  the  suture,  upon  which  in  the  best  marked 
specimens,  there  is  also  a  small  dark  spot ;  but  it  is  frequently  much 
smaller,  extending  only  from  the  third  to  the  sixth  stria  ;  the  pubescence 
is  denser  at  the  margin  of  the  spot  which  is  thus  surrounded  with  a  hairy 
band.  The  thighs  are  all  armed  with  an  acute  tooth.  The  second  joint  of 
the  funiculus  of  the  antennae  is  perceptibly  longer  than  the  third,  but  not 
so  much  so  as  in  the  preceding  species.  It  therefore  forms  a  passage  to 
the  small  species  which  compose  the  next  group. 

10.  A.  rubidus,  n.  sp. 

Testaceous,  uniformly  clothed  above  and  beneath  with  fine  ochreous 
pubescence;  beak  punctured  and  striate,  head  sparsely  punctured;  pro- 
thorax  wider  than  long,  densely  but  not  coarsely  punctured,  narrowed 
from  the  base,  sides  broadly  rounded  in  front,  feebly  constricted  near  the 
tip,  pubescence  more  condensed  on  the  median  line.  Elytra  one-third 
wider  than  the  prothorax,  oblong,  striae  deep,  moderately  punctured,  inter- 
spaces convex  punctulate,  scuttellar  region  somewhat  dark,  scuttellum 
white-pubescent.  Thighs  armed  with  an  acute  tooth;  front  tibiae  curved 
at  base,  sinuate  on  the  inner  side.     Length  2.2  mm. ;  .09  inch. 

One  specimen,  Pennsylvania ;  Dr.  Melsheimer.  Though  agreeing  in 
some  characters,  this  species  must  be  quite  different  from  A.  helvolus  Boh. 
Sch.  Cure,  vii,  2,224,  which  is  unknown  to  me. 

11.  A.  juniperinus.  ErivMnus  junip.  Sanborn,  Proc.  Bost.  Soc.  Nat. 
Hist.,  xii,  81. 

Massachusetts,  in  Podysoma,  a  parasitic  fungus  on  Juniper.  A  small 
pubescent  pale  species,  easily  known  by  the  fuscous  narrow  curved  band 
behind  the  middle  of  the  elytra;  the  beak  is  punctured  and  striate  as  far  as 
the  middle,  fi'ont  channeled,   prothorax  densely  not  coarsely  punctured; 


200  CUROULIOXID^.  [LeOonte. 

el_ytra  with  impressed  punctured  strioe,  interspaces  nearly  flat,  shining, 
sparsely  punctulate.  Thighs  with  a  very  small  tooth,  front  tibise  straight, 
scarcely  sinuate  on  the  inner  margin. 

13.  A.  sycophanta  Walsh,  Proc.  Ent.  Soc.  Phila.,  vi,  265. 

Western  States,  Illinois;  Mr.  Walsh.  Breeds  in  galls  on  willow  trees. 
This  species  is  easily  known  by  the  interspaces  of  the  elytra  rather  flat, 
and  nearly  opaque;  the  punctures  of  the  prothorax  are  very  coarse  and 
crowded.  The  pubescence  is  hairy  above,  but  coarser  and  almost  scale- 
like beneath,  the  beak  is  punctured  and  striate;  the  thighs  are  all  armed 
with  a  tooth,  and  the  front  tibiise  are  nearly  straight.  The  color  varies, 
but  the  elytra  are  always  red,  though  sometimes  darker  near  the  scutellum. 

I  am  disposed  to  believe  this  is  A.  Juematopus  Boh.  Sch.  Cure,  vii,  2, 
223,  with  the  description  of  which  it  agrees  in  all  particulars,  except  that 
the  prothorax  is  not  "rugoso  granulato,"  a  style  of  sculpture  very  unlikely 
to  occur  in  the  genus,  but  which  may  be  a  vague  method  of  indicating  the 
very  coarse  deep  punctures  with  narrow  high  intervals  which  characterize 
this  species. 

13.  A.  ruflpennis,  n.  sp. 

Oblong,  blackish,  thinly  but  finely  pubescent  with  white  hair.  Beak 
striate  and  punctured,  head  sparsely  punctulate,  front  foveate;  prothorax  a 
little  longer  than  wide,  narrowed  in  front  and  broadly  rounded  on  the 
sides,  feebly  constricted  as  usual,  surface  densely  and  coarsely  punctured, 
though  less  so  than  in  the  preceding  species;  elytra  oblong,  humeri  less 
prominent  than  usual,  and  rather  oblique,  strine  well  impressed,  coarsely 
punctured,  interspaces  slightly  convex,  shining,  sparsely  punctulate,  ferru- 
ginous, suture  darker,  scutellum  clothed  with  white  hairs.  Antennse  and 
legs  ferruginous,  thighs  strongly  toothed,  front  tibiai  straight,  slightly  sinu- 
ate on  inner  side.     Length  2.2  mm.,  .09  inch. 

One  specimen,  Pennsylvania.  Of  the  same  form  and  size  as  the  pre- 
ceding, but  easily  known  by  the  less  coarse  punctures  of  the  prothorax, 
and  the  smoother  and  shining  elytral  interspaces  ;  the  humeri  are  less  promi- 
nent than  in  our  other  species. 

14.  A.  suturalis  Lee,  Ann.  Lye.  Nat.  Hist.  N.  York,  i,  171,  pi.  xi,  f.  9; 
Gyll.,  Sch.  Cure,  iii,  346;  Boh,,  ibid,  vii,  2,  223  (cum  var.);  A.  erythrop- 
terus  Say,  Cure.  25;  ed.  Lee.  i,  293. 

Middle,  Southern,  and  Western  States.  Varies  in  color  and  extent  of 
the  red  elytral  spot,  which  is  sometimes  bright  yellowish-red,  and  distinctly 
limited,  sometimes  dark  and  diftused,  so  that  only  the  suture  remains 
blackish.  In  one  specimen  the  surface  of  the  elytra  is  dull  and  finely  ru- 
gose, but  I  suspect  that  this  has  been  caused  by  some  injury  received  in 
the  early  stages  of  development,  and  must  be  regarded  as  an  accidental 
yionstrosity,  and  not  as  a  variation. 

15.  A.  musculus  Say,  Cure.  15;  ed.  Lee.  i,  277;  Gyll.  Sch.  Cure,  iii, 
350. 

Middle,  Southern,  and  Western  States.     Closely  allied  to  the  varieties  of 


LeOonte.]  ANTHOXOMIXI.  201 

tlie  preceding  in  wliich  tlie  red  is  diffused  over  the  elytra;  but  smaller  and 
more  robust,  with  the  beak  more  slender,  and  the  funicle  of  the  anten- 
nae with  the  outer  joints  more  rounded;  I  can  find  no  other  differences 
worth  mentioning,  and  it  will  very  probably  be  found  to  be  not  distinct. 

16.  A.  sulcifrons,  n.  sp. 

Black,  with  rather  dull  lustre,  thinly  pubescent  above,  more  densely  be- 
neath. Beak  strongly  punctured,  striate  at  base,  head  sparsely  punctulate, 
with  a  deeply  marked  frontal  stria.  Prothorax  wider  than  long,  gradually 
narrowed  from  the  base,  feebly  rounded  on  the  sides,  deeply  and  densely 
punctured.  Elytra  one-third  wider  than  the  prothorax,  slightly  ovate, 
striae  deep,  coarsely  punctured,  interspaces  convex,  nearly  smooth  ;  behind 
the  middle  are  two  series  of  small  spots  of  pubescence,  as  in  well  pre- 
served specimens  of  the  preceding  three  species.  Antennae  piceo-testa- 
ceous;  thighs  scarcely  clavate,  with  a  very  small  tooth  scarcely  visible  on 
the  middle  and  hind  pair.     Length  1.6  mm.;  .065  inch. 

One  specimen,  Georgia.  Also  related  to  the  two  preceding,  but  readily 
known  bj'  the  entirely  black  color,  and  sulcate  front. 

17.  A.  flavicornis  Boh.,  Sch.  Cure,  vii,  2,  231. 

Maryland  to  Texas.  The  beak  is  sparsely  punctured,  finely  striate,  head 
nearly  smooth,  front  channeled,  prothorax  moderately  densely  punctured, 
and  elytral  striae  fine,  distant,  and  finely  punctured.  The  pubescence  is 
white,  coarse,  and  thinly  distributed,  a  little  more  dense  beneath.  The 
antennae  are  yellow-testaceous,  and  the  tarsi  piceous.  All  the  thighs  armed 
with  a  small  acute  tooth.  The  scutellum  and  a  small  intra-humeral  spot 
are  densely  i^ubescent. 

18.  A.  morulus,  n.  sp. 

California,  San  Mateo  and  Gilroy;  Mr.  Crotch. 

A  small  black  species  of  the  same  size  and  general  form  (2.2  mm. ;  .09 
inch),  as  the  preceding,  but  with  the  beak  longer  and  more  punctured,  the 
head  distinctly  punctured,  the  frontal  stria  shorter.  The  prothorax  is 
equally  strongly  punctured,  but  more  rounded  on  the  sides.  The  elytral 
striae  are  well  impressed,  strongly  and  closely  punctured,  and  the  inter- 
spaces flat  and  rugose.  The  pubescence  is  very  fine  and  sparse,  a  little 
more  distinct  beneath.  The  antennae  are  dark-testaceous  with  the  club 
piceous;  the  thighs  are  scarcely  clavate,  and  hardly  perceptibly  toothed. 

19.  A.  nigrinus  Boh.,  Sch.  Cure,  vii,  2,  230. 

Georgia  and  Louisiana;  three  specimens.  Of  the  same  size  and  general 
form,  and  as  finely  pubescent  as  the  last  species.  The  prothorax  is  very 
coarsely  punctured,  and  the  elytral  striae  are  less  impi'essed,  but  more 
coarsely  punctured,  and  the  interspaces  less  flat,  and  nearly  smooth.  The 
antennae  are  nearly  black,  the  thighs  are  armed  with  a  veiy  minute  tooth, 
more  distinct  on  the  front  pair. 

20.  A.  corvulus,  n.  sp. 

Black,  slightly  pruinose  with  sparse  white  pubescence.  Beak  punctured 
and  feebly  striate,  head  opaque,  with  a  small  frontal  fovea.     Prothorax 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  Z 


202  OURCULIOXID^. 


[LeConte. 


closely  but  less  coarsely  punctured  than  in  the  preceding,  wider  than  long, 
narrowed  in  front  and  feebly  rounded  on  the  sides.  Elytra  sub-ovate, 
strife  strongly  punctured,  not  much  impressed,  interspaces  shining  nearly 
smooth.  Antennai  piceous,  base  testaceous  ;  thighs  slightiy  clavate,  armed 
with  a  very  small  tooth.     Length  1.5-3  mm. ;  .06-.08  inch. 

Atlantic  slope,  extending  to  Oregon.  Easily  known  by  the  small  size, 
and  which  at  first  sight  causes  it  to  resemble  an  apion. 

21.  A.  pusillus,  n.  sp. 

Testaceous,  thinly  sprinkled  with  white  scale-like  hairs.  Beak  long  and 
slender,  sparsely  and  finely  punctured,  head  with  a  small  frontal  puncture. 
Prothorax  wider  than  long,  rounded  on  the  sides,  coarsely  and  deeply 
punctured.  Elytra  sub-ovate,  less  elongate  than  usual,  striic  coarsely 
punctured,  interspaces  nearly  smooth,  slightly  convex.  Legs  rather  stout, 
thighs  acutely  toothed.     Length  1.4  mm. ;  .05  inch. 

One  specimen,  Texas;  Belfrage.  A  robust  species  easily  known  by  the 
small  size  and  the  characters  above  given. 

22.  A.  elegans,  n.  sp. 

Rather  broadly  ovate,  brown,  clothed  with  very  small  depressed  scales 
of  a  brown  and  gray  color,  with  the  scutellum  and  neighboring  elytral 
spot  snow  white.  Beak  slender,  straight,  as  long  as  the  head  and  protho- 
rax, shining,  punctured,  striate  for  two-thirds  the  length;  head  punctured, 
front  nari'ow,  channeled;  eyes  larger  and  more  prominent  than  usual.  Pro- 
thorax  as  wide  as  long,  gradually  narrowed  and  slightly  rounded  on  the 
sides  from  the  base,  densely  punctured,  marked  with  a  narrow  transverse 
and  longitudinal  line  of  white  scales  forming  a  cross;  at  the  middle  of  the 
base  some  scattered  white  scales;  near  the  apex  two  spots  of  silky  yellow- 
brown  scales,  and  a  similar  larger  spot  on  the  inflexed  sides.  Elytra  wider 
than  the  prothorax,  nearly  truncate  at  base,  humeri  prominent  rounded ; 
striag  punctured,  obscured  by  the  scales  which  form  a  beautiful  complex 
pattern  of  brown,  dark-brown,  and  gray.  Beneath  mottled  with  gray 
scales,  legs  stout,  thighs  thick  and  strongly  toothed,  tibiae  with  an  obtuse 
angle  on  the  inner  side  at  one-third  the  length;  claws  cleft  as  usual.  An- 
tennaj  testaceous  brown,  funicle  slender  with  the  first  joint  long,  second  a 
little  longer  than  the  third;  club  almost  articulated .  Length  2  mm. ;  .08 
inch. 

Two  males,  Haulover,  Florida,  March  10th;  Schwarz  and  Hubbard.  The 
pygidium  is  perpendicular,  and  even  slightly  inflexed.  The  large  convex 
eyes,  the  narrow  front,  and  tibiae  armed  with  a  tooth  on  the  inner  side, 
easily  distinguish  this  beautiful  species.  The  prosternum  is  extremely 
short,  more  so,  in  fact,  than  in  any  other  species  known  to  me. 

23.  A.  squamosus,  n.  sp. 

Brown,  densely  clothed  with  scale-like  gray  pubescence;  beak  naked, 
red-brown,  shining,  finely  punctured,  not  striate,  frontal  fovea  elongate; 
prothorax  broader  than  long,  narrowed  in  front,  rounded  on  the  sides, 
densely  punctured.     Elytra  suddenly  one-third  wider  than  the  prothorax. 


LeConte.]  AN^THONOMINI.  203 

not  elongate,  stria;  impressed,  punctured,  interspaces  quite  flat.  Antennae 
ferruginous,  slender,  second  joint  of  funiculus  longer  than  third;  legs  fer- 
ruginous, thighs  clavate,  armed  -with  an  acute  tooth.  Length  4.4  mm.; 
.17  inch. 

Colorado;  not  rare.  In  some  specimens  three  thoracic  vittce  and  the  al- 
ternate interspaces  of  the  elj^tra  are  paler;  the  scutelluni  is  nearly  white. 

24.  A.  tectus,  n.  sp. 

Blackish,  less  densely  clothed  with  yellowish  or  whitish  scales,  beak 
slightly  pubescent,  coarsely  punctured  and  striate,  frontal  fovea  elongate. 
Prothorax  wider  than  long,  narrowed  in  front,  broadly  rounded  on  the 
sides,  densely  punctured.  Elytra  wider  than  the  prothorax  at  base,  strlte 
coarsely  punctured,  interspaces  flat,  fourth  covered  with  paler  scales  from 
the  base  to  behind  the  middle;  sixth  from  the  base  nearly  to  the  middle. 
Antennae  brown,  scape  and  base  of  funiculus  ferruginous;  second  joint  of 
funiculus  scarcely  longer  than  third.  Legs  ferruginous,  thighs  armed  with 
a  small  acute  spine.     Length  2.4  mm,;  .10  inch. 

Massachusetts;  Georgia. 

25.  A.  hirtus,  n.  sp. 

Elongate,  black,  densely  clothed  with  coarse  scarcely  squamiform  ochre- 
ous  pubescence.  Beak  slightly  pubescent,  punctured  obsoletely  striate  at 
base.  Prothorax  not  wider  than  long,  gradually  narrowed  in  front,  broadly 
rounded  on  the  sides,  densely  punctured.  Elytra  elongate  oblong,  wider 
than  the  prothorax  at  base,  striaj  punctured,  interspaces  flat,  antennae  and 
legs  ferruginous,  club  and  thighs  darker,  the  latter  clavate  armed  with  a 
scarcely  perceptible  tooth;  second  joint  of  funicles  scarcely  longer  than 
third.     Length  3.2  mm.;  .13  inch. 

One  specimen,  Utah. 

26.  A.  inermis  Boh.,  Eugenics  Resa,  Coleopt.  131. 

Elongate,  ferruginous,  very  densely  clothed  with  large  whitish  scales, 
beak  naked  except  at  base;  punctured,  and  feebly  striate.  Prothorax 
densely  and  deeply  punctured. a  little  wider  than  long,  narrowed  in  front 
and  rounded  on  the  sides.  Elytra  a  little  wider  than  the  prothorax  at 
base,  elongate  oblong,  striae  strongly  punctured,  interepaces  moderately 
convex,  nearly  smooth,  club  of  antennas  darker,  second  joint  of  funicle 
scarcely  longer  than  third;  thighs  feebly  clavate,  not  toothed.  Length  2.2 
mm.;  .09  inch. 

Mariposa,  California;  Dr.  Thevenet. 

27.  A.  sub vittatus,  n .  sp. 

Of  the  same  form  as  the  preceding,  but  a  little  larger,  and  darker  in  color; 
the  scales  are  smaller,  though  equally  dense;  the  prothorax  has  three  white 
vittae,  with  two  intermediate  brownish  ones;  the  elytra  are  mingled  brown 
and  white,  with  a  posterior  stripe  on  the  third  interspace,  and  one  on  the 
fifth  extending  from  the  base  to  the  middle  pale;  the  scutelluni  as  usual  is 
pale.  The  front  thighs  are  almost  imperceptibly  toothed.  Length  2.5 
mm.;  .10  inch. 

San  Diego  and  Mariposa,  California;  five  specimens. 


204  CUKCULIOJJ^ID^. 


[LeConte. 


28.  A.  pauperculus,  u.  sp. 

Also  of  the  same  form  as  A.  inermis  and  densely  covered  with  broad  scales 
of  dirty  white,  mixed  with  pale  brown;  other  characters  as  in  that  species, 
except  that  the  front  thighs  are  armed  beneath  with  a  distinct,  though  not 
very  prominent  tooth.     Length  2  mm.;  .08  inch. 

San  Diego,  Gala.;  five  specimens. 

29.  A.  disjunctus.  n.  sp. 

Subovate,  brown,  covered  beneath  with  pale,  above  with  brown  scales; 
beak  long,  punctured  and  striate,  head  feebly  punctured,  frontal  fovea 
elongate.  Prothorax  wider  than  long,  gradually  narrowed  in  front  from 
the  base,  slightly  rounded  on  the  sides,  deeply  and  densely  punctured,  with 
three  dorsal  vittaj  of  pale  scales.  Elytra  at  base  not  wider  than  the  pro- 
thorax,  gradually  wider  and  sliglitly  rounded  on  the  sides,  stria?  punctured, 
interspaces  slightly  convex,  fourth  for  the  middle,  third  and  sixth  from 
base  to  middle  covered  with  pale  scales.  Antennaj  testaceous  at  base, 
second  joint  of  funiculus  as  long  as  the  two  following.  Thighs  clavate, 
armed  with  a  small  tooth,  which  seems  to  be  wanting  on  the  hind  pair. 
Length  3.2  mm.;  .125. 

Georgia  and  Illinois;  two  specimens.  The  outer  interspaces  of  the  elytra 
behind  the  middle,  and  the  scutellura  ai'e  also  covered  with  pale  scales. 
The  teeth  of  the  tarsal  claws  ai-e  more  approximate  than  in  any  of  the  pre- 
ceding species,  and  seem  to  be  almost  connate. 

30.  A.  ruflpes,  n.  sp. 

Subovate  piceous,  less  densely  clothed  with  white  scales,  beak  long, 
punctured  and  striate,  head  punctured,  frontal  fovea  small.  Prothorax  as 
in  the  preceding.  Elytra  not  wider  at  base  than  the  prothorax,  gradually 
wider  and  slightly  rounded  on  the  sides;  stria;  strongly  punctured,  inter- 
spaces flat,  autennfe  and  legs  ferruginous,  second  joint  of  funiculus  hardly 
longer  than  the  third,  thighs  clavate,  armed  with  an  acute  tooth,  which  is 
smaller  on  the  hind  pair  but  quite  distinct.     Length  2.6  mm. ;  .10  inch. 

New  York,  one  specimen. 

31.  A.  elongatus,  n.  sp. 

Elongate,  dark  brown,  partly  clothed  with  small  gray  scales,  forming  an 
indistinct  pattern  on  the  elytra.  Beak  longer  than  the  head  and  prothorax, 
slender,  cylindrical,  curved,  densely  punctured,  and  finely  carinate;  head 
punctured,  vertex  channeled,  front  scarcely  as  wide  as  usual.  Prothorax 
strongly  and  densely  punctured,  wider  than  long,  nearly  truncate  at  base, 
graduallj^  narrowed  from  the  base  and  slightly  rounded  on  the  sides;  white 
scales  more  dense  each  side  at  the  base,  forming  an  ill-defined  spot.  Elytra 
a  little  wider  than  the  base  of  the  prothorax,  elongate,  oval;  striiE  fine, 
punctured;  interspaces  not  convex,  finely  alutaceous.  Tliighs  feebly  cla- 
vate, not  toothed;  front  and  middle  tibiae  slightly  sinuate;  claws  cleft  as 
usual.  AntenniB  testaceous,  club  dusky;  first  joint  of  funicle  as  long  as 
the  second  and  third  united.     Length  2.3  mm. ;  .09  inch. 

Georgia;  two  specimens.     Resembles  in  form  certain  species  of  Smicro- 


LeConte.] 


ANTHOXOMINI.  205 


nyx.  In  this  species  as  in  A.  inermis,  suhvittatua,  and  patij'ierculus,  the 
pygidium  is  entirely  covered  by  tlie  elytra,  and  the  tifth  ventral  is  longer 
than  in  the  other  species.  In  a  revision  of  this  group  they  may  indicate  a 
distinct  genus. 

Division  C.  Funiculus  of  antennae  6-jolnted. 

33.  A.  crataeg-i  Walsh,  Proc.  Ent.  Soc.  Phila.  vi,  266. 

Middle,  Western,  and  Southern  States,  to  Texas. 

An  elongate  uniformly  ferruginous  species,  with  dull  lustre,  and  pubescent 
with  yellowish  hairs,  which  are  condensed  on  the  median  line  of  the  pro- 
thorax  forming  a  dorsal  vitta.  The  beak  is  punctured,  and  the  front  chan- 
neled; the  i)rothorax  densely  punctured;  the  elytra  deeply  striate,  with  the 
interspaces  convex.  The  funiculus  of  the  antennae  is  6-jointed,  and  slender, 
second  joint  a  little  longer  than  third;  thighs  armed  with  an  acute  tooth; 
front  tibiae  nearly  straight.  The  size  and  fonn  is  as  in  A.  sycophanta,  and 
like  that  species,  it  is  parasitic  in  galls  ;  in  this  Instance,  however,  upon 
Crataegus,  and  in  the  other  upon  Salix.     Length  2.3  mm. ;  .09  inch. 

33.  A.  subfasciatus,  n.  sp. 

Reddish-brown,  rather  robust,  finely  and  thinly  pubescent ;  beak  opaque, 
not  distinctly  punctured;  prothorax  sti-ongly  punctured,  elytra  with  the 
striae  coarsely  punctured,  interspaces  nearly  smooth;  behind  the  middle  is 
a  broad  transverse  denuded  band,  at  the  margins  of  which  the  pubescence 
is  more  condensed.  Antennae  more  robust  than  in  the  preceding,  funiculus 
6-jointed,  second  joint  not  longer  than  the  third.  Thighs  with  a  small  acute 
tooth.     Length  1.5  mm. ;  .06  inch. 

One  specimen.  New  York.  Greatly  resembles  what  I  have  above  con- 
sidered as  A.  musculus,  but  is  much  smaller,  and  differs  by  the  6-jointed 
funiculus  of  the  antennae. 

34.  A.  robustulus,  n.  sp. 

Robust,  black,  clothed  with  ashy  scales.  Beak  punctured  and  feebly 
striate.  Prothorax  much  wider  than  long,  narrowed  in  front,  rounded  on 
the  sides,  closely  and  deeply  punctured.  Elytra  one-third  wider  than  the 
prothorax,  striae  coarsely  punctured  towards  the  base,  interspaces  flat. 
Antennae  and  feet  brown,  thighs  not  toothed,  funiculus  6-jointed,  second 
and  third  joints  equal,  or  nearly  so.     Length  1.5  mm.;  .06  inch. 

Kansas;  three  specimens. 

35.  A.  nubilus,  n.  sp. 

Rusty  brown,  rather  elongate,  sparsely  and  finely  pubescent,  with  inter- 
mixed scattered  pale-yellowish  scales.  Beak  finely  punctured,  obsoletely 
striate,  frontal  fovea  feeble.  Prothorax  wider  than  long,  narrowed  in  front 
and  rounded  on  the  sides,  strongly  punctured,  with  a  short  whitish  dorsal 
line  behind  the  middle.  Elytra  with  the  striae  very  coarscl}'  punctured, 
interspaces  slightly  rugose;  the  scales  are  irregularly  scattered,  so  as  to 
give  the  appearance  of  a  large  denuded  dorsal  space,  and  a  posterior  denuded 
band  oblique  inwards  and  backwards.     Antennae  with  the  funiculus  stout. 


206  CURCULIONID^. 


[LeConte. 


6-jointecl,  second  joint  not  elongated,  club  fuscous,  of  the  usual  form. 
Legs  rather  stout,  thighs  not  toothed;  claws  very  feebly  toothed  at  base. 
Length  1.6  mm.;  .07  inch. 

One  specimen,  North  Carolina;  Dr.  Zimmerman.  The  nearly  simple 
ungues  distinguish  this  readily  from  all  other  species  in  our  fauna,  except 
the  next,  and  might  lead,  on  superficial  view  to  its  being  placed  in  the 
Erirhine  tribe,  from  which  it  essentially  differs  by  the  antennal  club,  and 
by  the  ventral  segments  being  nearly  equal  in  length. 

36.  A.  ungularis,  n.  sp. 

Elongate,  dark  brown,  thinly  clothed  with  pubescence,  and  with  a  faint 
appearance  of  a  transverse  denuded  band  behind  the  middle  of  the  elytra. 
Beak  indistinctly  imnctured,  obsoletely  striate,  head  opaque,  frontal  fovea 
small,  distinct.  Prothorax  wider  than  long,  rounded  on  the  sides,  nar- 
rowed in  front  of  the  middle,  densely  punctured  Elytra  one-fourth  wider 
than  the  prothoi-ax,  oblong,  striae  coarsely  punctured,  interspaces  nearly 
smooth ;  pubescence  more  dense  on  the  scutellum,  a  small  humeral  spot, 
and  two  very  indistinct  posterior  narrow  bands,  which  tend  to  unite  at  the 
suture.  Sides  of  meso-  and  metathorax  densely  pubescent.  Antennae  and 
legs  ferruginous,  funiculus  6-jointed,  second  joint  elongate  ;  thighs  not 
toothed,  claws  with  a  short  acute  basal  tooth,  slightly  connected  at  base 
Length  2.3  mm.;  .09  inch. 

Southern  States;  Dr.  Zimmermann. 

37.  A.  mixtus,  n.  sp. 

Elongate-ovate,  yellow-brown;  pubescence  white,  coarse,  scattered,  con- 
densed on  the  elytra,  into  several  indefinite  bands;  beak  punctured  and 
strongly  striate.  Prothorax  smaller  than  usual,  wider  than  long,  gradually 
narrowed  in  front,  slightly  rounded  on  the  sides,  coarsely  punctured. 
Scutellum  white-pubescent.  Elytra  at  base  but  little  wider  than  the  pro- 
thorax, gradually  wider,  elongate-ovate,  brown,  with  the  humeri  and  a 
common  sutural  rounded  spot  behind  the  middle,  yellow-brown;  two  nar- 
row indistinct  transverse  bands  of  pubescence  before  the  middle,  and 
others  behind  the  middle;  striae  strongly  punctured,  interspaces  slightly 
convex,  nearly  smooth.  Antennae  with  funiculus  6-jointed,  second  and 
third  joints  equal;  thighs  scarcely  clavate,  acutely  toothed;  claws  diver- 
gent, armed  with  a  short  basal  tooth,  which  is  rounded  at  tip.  Length  2.3 
-3  mm.;  .09-.  12  inch. 

Illinois,  Walsh  ;  Texas,  Belfrage.  On  account  of  the  comparatively 
smaller  size  of  the  prothorax,  this  insect  has  some  resemblance  in  form  to 
Orchestes,  but  the  eyes  are  of  the  usual  size  in  the  present  genus,  widely 
separated,  and  the  hind  legs  are  not  thicker.  The  elytra  are  not  roundec. 
on  the  sides  behind  the  humeri,  though  gradually  wider  as  far  as  the 
middle. 

38.  A.  decipiens,  n.  sp. 

Rather  elongate,  brown,  densely  clothed  with  large  gray  scales;  protho- 
rax indistinctly  striped;  elytra  with  a  darker  lateral  cloud  behind  the  mid- 


LeConte.  ] 


ANTnO]S"OMINl.  207 


die.  Beak  slender,  curved,  longer  than  the  head  and  prothorax,  naked, 
punctured,  substriate  near  the  base  ;  head  punctured,  clothed  with  fine 
scales.  Prothorax  one-third  wider  than  long,  narrowed  from  the  base, 
rounded  on  the  sides,  densely  punctured.  Elytra  a  little  wider  than  the 
prothorax;  sides  parallel,  then  obliquely  narrowed  and  rounded  to  the  tips, 
■which  entirely  cover  thepygidium;  striiTi  strongly  punctured,  interspaces 
nearly  flat.  Legs  testaceous,  front  thighs  toothed,  hind  thighs  not  toothed; 
claws  toothed,  with  the  teeth  nearly  connate;  antennae  testaceous,  funicle 
6-jointed,  first  joint  elongate,  second  joint  nearly  as  long,  but  thinner. 
Length  2  mm.;  .08  inch. 

Texas,  Belfrage;  one  specimen.  Has  quite  the  appearance  of  a  Smicro- 
nyx.  The  last  ventral  segment  is  a  little  longer  than  the  fourth,  and  is 
marked  with  a  large  shallow  rounded  impression.  There  are  some  white 
markings  upon  the  elytra  of  which  a  narrow  scutellar  spot  and  a  line  upon 
the  sixth  interspace  from  the  base  to  the  middle  are  most  obvious. 

39.  A.  canus,  n.  sp. 

Elongate,  brown,  or  blackish-brown,  densely  clothed  with  large  grayish- 
white  scales;  in  every  respect  like  the  preceding,  except  that  the  scales  are 
entirely  uniform  in  color.     Length  3  mm.;  .08  inch. 

Texas,  Belfrage;  four  specimens.  The  pygidium  of  the  J^  is  convex 
perpendicular,  and  indeed,  slightly  inflexed;  the  fifth  ventral  is  a  little 
longer  than  the  fourth,  and  not  impressed  in  either  sex;  the  pygidium  of 
the  9  is  but  slightly  visible  between  the  tips  of  the  elytra. 

40.  A.  aflanis,  n.  sp. 

This  species  also  resembles  in  form  and  sculpture  the  preceding  two  species. 
The  color  is  nearly  black,  clothed  with  pale  gray  scales  of  uniform  color. 
The  legs  and  antennae  testaceous,  front  thighs  toothed,  hind  thighs  simple; 
claws  toothed  as  in  the  preceding.  Antennae  with  6-jbinted  funicle,  second 
joint  shorter  than  first,  and  equal  to  the  third.     Length  2  mm.;  .08  inch. 

Texas,  Belfrage;  three  females.  The  pygidium  in  two  specimens  is 
barely  visible,  and  in  the  third  is  completely  covered  by  the  elytra. 

41.  A.  nanus,  n.  sp. 

Also  similar  to  the  three  preceding  species  but  much  smaller  and  nar- 
rower, nearly  black,  clothed  with  large  gi'ay  scales.  Prothorax  very  little 
wider  than  long,  less  narrowed  in  front,  less  rounded  on  the  sides.  Elj^tra 
very  little  wider  than  the  prothorax.  Antenna;  brown,  funicle  C-jointed, 
with  the  second  joint  equal  to  the  third,  nnd  united  equal  to  the  first.  Legs 
brown,  thighs  not  toothed.     Length  1.5  mm.;  .06  inch. 

Texas,  Belfrage;  two  specimens.  The  pygidium  is  slightly  exposed,  and 
in  the  ^  the  last  ventral  is  impressed  with  a  shallow  round  fovea.  The 
claws  are  toothed  as  in  the  three  preceding  species. 

ORCHESTES    Illiger. 

Tliis  genus  is  closely  allied  to  Anthonomus,  and  like  it  has  the  ventral 
sutures  straight  and  deeply  marked,  and  the  last  segment  not  longer  than 


208  CUKCULIONID^.  [LeConte. 

the  preceding.  It  difiers  by  the  eyes  being  large,  approximate  above,  so 
as  to  narrow  the  front,  and  by  the  hind  thiglis  being  thicliened,  so  as  to 
become  saltatorial.     The  claws  are  appendiculate  in  our  species. 

As  in  Anthonomus,  the  funicle  of  the  antennae  is  6-jointed  in  some, 
7-jointed  in  other  species. 

An  excellent  analytical  table  with  full  descriptions  of  our  species,  of 
which  but  four  were  known,  has  been  published  by  Dr.  Horn,  in  Proc. 
Amer.  Phil.  Soc.  Nov.  1873,  p.  461.  To  the  species  described  by  him  must 
be  added  the  following  : 

1.  O.  rufipes,  n.  sp. 

Black,  very  thinly  pubescent,  with  fine  whitish  hairs  ;  beak  finely  punc- 
tured, head  punctured,  front  narrow,  but  distinct ;  prothorax  finely  punctured ; 
elytra  oval,  rather  flattened,  deeply  striate,  interspaces  rugosely  punctulate. 
Antennae  and  legs  yellow,  hind  thighs  dusky,  very  slightly  incrassated  ; 
funicle  6-jointed,  second  joint  scarcely  longer  than  the  third;  thighs  not 
toothed;  claws  broadly  appendiculate.     Length  2  mm.;  .08  inch. 

Vermont;  two  specimens.  Smaller  than  0.  pallicornis,  with  the  eyes 
less  approximate,  the  hind  thighs  scarcely  thickened,  and  the  legs  not 
black,  but  ferruginous-yellow. 

2.  O.  puberulus  Boh.,  Eugen.  Resa.  Ins.,  133. 

California,  one  specimen.  Larger  than  the  other  species;  black,  rather 
densely  clothed  Avith  coarse  brown  pubescence.  Prothorax  at  base  twice 
as  wide  as  the  head,  not  wider  than  long,  narrowed  from  the  base  to  the 
tip,  punctured.  Elytra  elongate-oval,  nearly  twice  as  wide  as  the  protho- 
rax; humeri  regularly  rounded,  not  prominent;  striae  composed  of  rather 
large,  deep  but  not  very  close  punctures.  Antennae  testaceous,  funicle 
6-jointed,  joints  1-3  elongate;  legs  testaceous,  thighs  not  toothed;  claws 
broadly  appendiculate.     Length  3.3  mm. ;  .13  inch. 

8.  O.  parvicoUis,  n.  sp. 

Black,  thinly  clothed  with  very  fine  pubescence,  which  is  not  very  ob- 
vious, except  upon  the  scutellum.  Prothorax  at  base  a  little  wider  than 
long,  narrowed  in  front,  sides  nearly  straight;  surface  densely  and  strongly 
punctured.  Elytra  elongate -oval,  more  than  one-half  wider  than  the  pi'o- 
thorax;  striae  deep,  punctured,  interspaces  finely  rugose.  Antcnnaj  and 
legs  black;  funicle" 7 -jointed;  thighs  not  toothed;  claws  broadly  appendicu- 
late.    Length  2.8  mm. ;  .11  inch. 

San  Mateo,  California;  one  specimen.  Resembles  0.  niger,  Horn,  but  is 
larger,  with  the  scutellum  less  densely  pubescent  ;  the  prothorax  less 
coarsely  punctured,  and  the  elj^tra  comparatively  longer  and  more  regu- 
larly oval. 

MACRORHOPTUS  Lee. 

This  new  genus  is  established  upon  a  species  from  Texas  and  California, 
having  tlie  aspect  someAvhat  of  a  small  MagdaUs,  but  with  the  hind  angles 
of  the  prothorax  not  laminate,  and  of  the  usual  obtuse  form.  It  is  re- 
markable for  the  short  thick  6-jointed   funiculus,  the  joints  2-6  being 


LeConte.l 


ANTHONOMINI.  209 


closely  connected,  gradually  wider,  and  uniting  with  the  annulated  club 
so  as  to  form  a  regular  club  shaped  outline.  The  beak  is  cylindrical,  rather 
stout,  about  as  long  as  the  prothorax;  antennse  inserted  one-fourth  from 
the  end;  eyes  large,  transversely  oval;  front  narrower  than  the  beak.  Pro- 
thorax  wider  than  long,  narrowed  in  front,  broadly  rounded  on  the  sides  ; 
prosternum  short,  eniarginate  in  front.  Elytra  elongate,  wider  than  pro- 
thorax;  humeral  angles  rounded,  sides  parallel,  strife  obsolete.  Ventral 
segments  nearly  equal,  third  and  fourth  very  little  shorter,  sutures  straight, 
less  deeply  impressed  than  in  Anthonomus.  Legs  rather  short,  front  thighs 
armed  with  a  large  tooth,  other  thighs  unarmed,  sub-clavate;  tibite  straight, 
obliquely  truncate,  without  terminal  hook;  claws  with  a  slender  tooth,  as 
in  most  A?ithono7nus. 

1.  M.  estriatus,  n.  sp. 

Elongate,  black,  not  very  densely  covered  with  elongate  cinereous  scales; 
beak  densely  finely  punctured,  separated  from  the  front  by  a  feeble  trans- 
verse impression  ;  head  punctured;  prothorax  more  deeply  and  coarsely 
punctured;  elytra  densely  punctured,  with  slight  traces  of  strise  near  the 
margin  and  tip  ;  front  thighs  strongly  toothed;  antennae  brown,  with  ver- 
ticellate  rows  of  white  scales.     Length  2.7  mm. ;  .10  inch. 

Texas,  Belfrage;  Santa  Barbara  and  Warner's  Ranch,  California,  Crotch. 

When  the  scales  are  rubbed  oft"  a  fine  inconspicuous  pubescence  remains. 
The  emargination  of  the  prosternum  gives  an  appearance  of  feeble  post- 
ocular  lobes,  and  in  following  Lacordaire's  arrangement  this  genus  would 
be  placed  in  the  Ceratopides,  after  AcanthohracTimm,  from  which  it  seems 
to  differ  by  having  only  the  front  thighs  toothed. 

ALYCA  n.  g. 

I  have  separated  as  a  distinct  genus  ErirJiinus  epMppiatus  Say,  which 
differs  from  the  other  genera  of  this  group  by  having  the  last  ventral  seg- 
ment as  long  as  the  two  preceding,  and  the  claws  divergent  and  broadly 
appendiculate.  The  beak  is  not  very  slender,  cylindrical,  as  long  as  the 
prothorax;  the  antenntB  are  inserted  about  one  fourth  from  the  end  ;  the 
scape  attains  the  eyes,  which  are  rounded,  moderate  in  size,  and  distant ; , 
funiculus  7-jointed,  first  joint  stouter  and  longer,  the  others  equal,  gradu- 
ally a  little  wider,  the  outer  ones  rounded  ;  club  elongate-oval,  annulated. 
Prothorax  wider  than  long,  narrowed  in  front  of  the  middle,  rounded  on 
the  sides,  feebly  constricted  near  the  tip.  Elytra  wider  than  prothorax, 
oblong-elongate,  humeri  rounded,  sides  parallel,  striae  punctured,  inter- 
spaces nearly  flat.  Prosternum  short  in  front  of  the  coxaj.  Ventral  su- 
tures straight,  third  and  fourth  segments  united  equal  to  each  of  the  others, 
fifth  flat,  with  a  very  small  apical  carina  in  one  sex.  Legs  moderate, 
thighs  feebly  clavate,  not  toothed,  tibiae  with  a  distinct  terminal  hook, 
tarsi  dilated,  third  joint  very  broad,  bilobed;  claws  divergent,  with  a  broad 
rectangular  tooth  or  appendiculum. 

1.  A.  ephippiata.  ErirMnus  epMpp.,  Say,  Cure.  25;  ed.  Lee.  i,  293; 
Gyll.  Sch.  Cure,  iii,  289;  Walsh,  Proc.  Ent.  Soc.  Phil,  vi,  268. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  2a 


210  CURCULTONID^. 


[LeConte. 


Atlantic  slope;  found  also  by  Mr.  Crotch  at  San  Diego  and  San  Bernar- 
dino, California. 

A  small  j^ellowish-brown  insect,  densely  clothed  with  yellow  pubescence, 
with  a  large  dark  spot  near  the  base  and  another  transverse  one  behind  the 
middle,  connected  by  a  sutural  stripe;  sometimes  there  is  an  appearance  of 
a  third  spot  near  the  tip  of  the  elytra. 

This  insect  might  be  easily  confounded  with  some  of  the  varieties  of 
Phyllotrox  nuhifer,  but  the  elytra  are  less  broadlj^  rounded  at  tip,  and  the 
claws  are  not  simple,  but  broadly  appendiculate.  It  varies  greatly  in  size, 
1.8-3.9  mm.;  .07-11  inch.  Bred  by  Mr.  Walsh  from  a  Cecidomyidous 
gall;  S.  brassicoides  of  Salix  longifolia. 

Tribe  X.  prioivomerisi. 

This  tribe  contains  a  few  small  species  of  robust  form,  easily  known  by 
the  following  assemblage  of  characters  : 

Beak  stout,  sometimes  short  and  flat:  antennae  inserted  about  the  middle, 
scape  extending  upon  the  eyes  which  are  large  and  rounded  ;  funicle 
7-jointed,  club  very  large,  pubescent,  oval  pointed,  almost  articulated. 
Prothorax  without  postocular  lobes,  front  coxae  contiguous;  prosternum 
short,  not  emarginate. 

Ventral  sutures  deeply  impressed;  the  first  is  straight,  the  others  strongly 
angulated  at  the  sides;  fifth  segment  scarcely  longer  than  the  fourth.    Legs 
stout,  tibiae  with  a  slender  terminal  hook  ;  tarsi  dilated,  spongy  beneath  ; 
third  joint  bilobed,  claws  appendiculate,     Pygidium  more  or  less  visible. 
Beak  as  long  as  prothorax.  sub-cylindrical;  long;  front 

thighs  with  a  large  serrated  tooth Prionomerus. 

Beak  short,  broad  and  flat;  thighs  with  a  small  acute 

tooth Piazorhinus. 

PRIONOMERUS  Sch. 

1.  P.  calceatus.  Anthonomus  (Odontopus  \)  calc.  Say,  Cure.  15  ;  ed. 
Lee.  i,  278  ;  Prion,  carbonarius  Gyll.,  Sch.  Cure,  iii,  360. 

Atlantic  States.  I  do  not  know  why  Gyllenhal  has  suppressed  the  spe- 
cific name  proposed  by  Say,  in  favor  of  one  taken  from  Dejean's  Cata- 
logue. It  is  unfortunate  that  the  generic  name  given  by  Say  was  not  ac- 
companied with  a  proper  description,  as  it  would  then  (1831)  have  had 
precedence  over  the  homonyms  of  Silbermann  in  Coleoptera,  and  Laporte 
in  Uemiptera. 

PIAZORHINUS  Sch. 

1.  P.  scutellaris  Gyll.,  Sch.  Cure,  iii,  472;  Attelahxis  scut.  Say,  Journ. 
Ac.  Nat.  Sc.  Phil,  v,  252;  ed.  Lee.  ii,  315. 

Atlantic  States.  The  antennae  are  scarcely  geniculate,  and  being  in- 
serted nearer  the  eyes  in  consequence  of  the  shortness  of  the  beak,  the 
scape  is  less  elongated  than  in  the  preceding  genus.  I  observe  in  my  spe- 
cimens that  the  thighs  are  armed  with  a  small  but  acute  tooth  about  the 


LeConte.] 


PRIOI^OMERINI.  211 


middle  on  the  underside;  this  tooth  lias  been  overlooked  by  Schonlierr, 
while  Lacordaire  describes  the  thighs  as  unarmed. 

2.  P.  pictus,  n.  sp. 

Testaceous,  clothed  with  pale-yellowish  pubescence  ;  head  and  beak 
dusky.  Elytra  with  a  large  rounded  common  dusky  spot  extending  from 
the  base  to  the  middle,  paler  within  ;  and  a  dusky  oblique  band,  more  or 
less  interrupted  on  the  seventh  interspace,  which  attains  the  suture  about 
one-fourth  from  the  tip  ;  strioe  punctured,  less  deep  than  in  P.  scutellaris. 
Thighs  armed  with  a  small  acute  tooth ;  claws  appendiculate.  Length 
2.5  mm. ;  .10  inch. 

Georgia;  one  specimen.  The  large  common  spot  of  the  elytra  is  dark 
only  at  the  edge,  in  the  middle  it  is  nearly  as  pale  as  the  ground  color.  A 
manuscript  drawing  by  my  father  named  Arliynchus  tomentosus  \  Dey 
Cat.  resembles  this  species. 

Tribe  XL  tychiibti. 

In  this  tribe  a  form  of  body  is  resumed,  which  resembles  that  of  the 
Erirhinini.  The  claws,  however,  are  not  simple,  but  appendiculate  or 
toothed,  and  the  second,  third  and  fourth  ventral  sutures  are  not  straight, 
but  strongly  angulated  at  the  sides.  The  prolongation  backwards  of  the 
side  angles  of  the  second  segment  is  in  some  genera  carried  to  such  an 
extent  that  the  points  reach  the  fourth  segment,  and  the  sides  of  the  third 
segment  are  thus  entirely  covered.  The  pygidium  is  usually  exposed, 
by  the  tips  of  the  elytra  being  separately  rounded,  but  in  TycMus  they  are 
conjointly  rounded,  and  the  pygidium  is  covered.  This  character,  as  in 
Antlionomini,  possesses,  therefore,  but  little  value.  The  ventral  segments 
are  less  unequal  than  in  Erirhinini. 

The  other  characters  are  those  common  to  the  preceding  tribes  ;  Beak 
long  and  usually  slender;  antennte  inserted  far  from  the  tip;  antennal 
grooves  directed  sometimes  against  the  eyes,  sometimes  below  them. 
The  eyes  are  rounded  or  nearly  so,  not  finely  granulated.  The  funicle 
of  the  antennae  is  6-  or  7-joiuted,  and  the  club  entirely  pubescent  and 
annulated.  The  prothorax  has  no  postocular  lobes;  the  prosternum  is  short, 
not  strongly  emarginate  in  front,  and  the  coxae  are  contiguous.  Tlie  side 
pieces  of  the  mesothorax  are  diagonally  divided,  and  the  epimera  do  not 
largely  attain  the  base  of  the  prothorax.  The  metasternuni  is  long,  and  the 
side  pieces  are  narrow,  or  moderately  wide,  dilated  in  front.  Tibi«  feebly 
or  strongly  mucronate;  articular  surface  prolonged  on  the  outer  face,  ao  as 
to  become  oblique. 

Our  genera  with  three  exceptions  have  not  been  described : 

Angles  of  second  ventral  segment  not  extending  to  the  fourth 2. 

Angles  of  second  ventral  segment  extending  to  the  fourth S. 

2.  Claws  broadly  appendiculate 3. 

"       toothed 4. 


212  CURCULIOK^ID^.  [LeConte. 

3.  Beak  stout;  venter  of  (^  with  acute  processes  PROCTORUS. 

"      slender;  "  "    unarmed ENOALUS. 

4.  Beak  slender;  fourth  ventral  suture  indistinct  THYSANOCNEMIS. 

"      stout  carinate PLOCETES. 

5.  Elytra  not  tuberculate 6. 

tuberculate TYLOPTERUS. 

6.  Tips  of  elytra  conjointly  rounded TYCHIUS, 

"  "       separately         "       7. 

7.  Claws  toothed SIBYNES. 

simplex PARAGOGES 

PROCTORUS  n.  g. 

This  new  genus  is  established  upon  a  small  insect  which  has  altogether 
the  form,  sculpture,  and  mottled  pubescence  of  Erirhinus;  it  is,  however, 
easily  known  by  the  stouter  beak,  the  curved  ventral  sutures,  and  the 
broadly  appendiculate  claws.  The  sexual  characters  of  the  (^  are  very  re- 
markable; the  fifth  ventral,  namely,  is  as  long  as  the  three  preceding  uni- 
ted; it  is  divided  by  a  transverse  sharply  elevated  ridge  into  two  parts,  of 
which  the  anterior  is  the  larger  and  broadly  concave;  the  hinder  part  is 
much  more  deeply  concave,  and  on  each  side  at  the  junction  of  the  elevated 
ridge  with  the  margin  is  a  stout,  flattened  horn,  rounded  at  the  tip;  on  the 
anterior  margin  of  the  segment,  at  the  middle,  is  a  third  shorter  horn. 

Beak  as  long  as  the  prothorax,  rather  stout,  cylindrical,  somewhat  curved, 
densely  punctured,  not  striate  nor  carinate.  Antennae  inserted  about  one- 
fourth  from  the  tip  (  9  )  or  less  (c?) ;  scape  slender,  reaching  the  eyes,  which 
are  rounded  and  distant;  funicle  7-jointed;  first  joint  as  long  as  the  two 
following,  and  stouter;  2-7  short,  equal,  gradually  a  little  wider;  club 
moderate  in  size,  elongate -oval,  subacute,  annulated;  antennal  grooves 
reaching  the  lower  margin  of  the  eyes.  Prothorax  about  as  wide  as  long, 
rounded  on  the  sides  in  front,  and  feebly  impressed  near  the  tip.  Elytra 
wider  at  base  than  prothorax,  elongate  oblong,  humeri  prominent,  rounded, 
sides  parallel;  marginal  stria  incomplete  at  the  middle.  Ventral  segments 
unequal;  third  and  fourth  together  scarcely  longer  than  each  of  the  others; 
first  suture  straight  at  the  sides,  arched  forwards  at  the  middle;  other  su- 
tures angulated  at  the  sides.  Legs  rather  short,  thighs  not  toothed; 
tibiae  straight,  the  front  pair  with  a  small  terminal  hook;  tarsi  with  the  first 
joint  slightly  longer  than  the  second,  third  broader  bilobed ;  last  joint  as 
long  as  the  first  and  second;  claws  divergent,  broadly  dilated  and  appendicu- 
late at  base. 

1.  P.  armatus  n.  sp. 

Black,  thinlj^  clothed  with  white  hairy  pubescence,  which  is  somewhat 
mottled  upon  the  elytra.  Beak  densely  punctured,  Prothorax  closely  and 
deeply  punctured.  Elytra  with  striaj  strongly  punctured,  interspaces  nearly 
flat,  sparsely  punctulate.     Antennae  piceous.     Length  3.4  mm.;  ,13  inch. 

South  side  of  Lake  Superior;  three  specimens. 


LeConte.] 


TYCHirN^I.  213 


ENOALUS  n.  g. 


This  genus  also  resembles  a  small  Erirldnus,  and  differs  from  Proctorus 
only  by  the  beak  being  longer  than  the  prothorax,  and  more  slender;  it  is 
also  punctured  and  feebly  striate  towards  the  base,  as  in  many  Anthofioini. 
The  antennae  are  inserted  about  one-fourth  from  the  end  of  the  beak;  the 
scape  almost  reaches  to  the  eyes,  which  are  moderate  in  size  and  distant; 
the  funiculus  is  7-jointed,  first  joint  longer,  the  others  nearly  equal,  short, 
gradually  wider  and  more  rounded;  club  oval,  annulated;  ventral  segments 
unequal,  third  and  fourth  together  as  long  as  second,  fifth  nearly  as  long; 
first  suture  straight;  others  angulated  at  the  sides.  Legs  moderate,  thighs 
armed  with  a  small  tooth;  claws  divergent,  broadly  appendiculate. 

1.  E.  decipiens  n.  sp. 

Black,  clothed  with  white  and  yellowish  pubescence.  Prothorax  not 
wider  than  long,  broadly  rounded  on  the  sides,  coarsely  and  very  deeply 
punctured.  Elytra  wider  than  prothorax,  at  base  elongate  oblong,  with  a 
broad  transverse  black  band  occupying  the  middle  third;  stri*  coarsely 
punctured,  interspaces  flat.  Antenn«  and  legs  piceo-ferruginous.  Length 
3.4  mm.;  .13  inch. 

Illinois  and  Minnesota;  two  specimens.  In  form  and  color  this  insect 
bears  an  almost  deceptive  resemblance  to  Macrops  solutus,  but  in  other 
characters  it  is  in  every  way  different. 

PLOOETES  n.  g. 

Beak  rather  stout,  as  long  as  the  prothorax,  carinate,  punctured  and  with 
three  fine  elevated  lines  each  side;  antennal  grooves  deep,  extending  to  the 
lower  margin  of  the  eyes,  which  are  oval  and  rather  large.  Antennae  in- 
serted about  one-fourth  from  the  tip,  scape  reaching  nearly  to  the  eyes; 
funicle  7-jointed,  first  joint  as  long  as  the  three  following  united  and 
stouter;  second  a  little  longer  than  third;  3-7  equal,  scarcely  increasing  in 
width;  club  elongate-oval,  annulated,  rather  large.  Prothorax  scarcely 
wider  than  long,  rounded  on  the  sides,  narrowed  in  front  of  the  middle, 
neither  lobed  nor  constricted  in  front.  Elytra  one-half  wider  than  protho- 
rax, humeri  oblique  and  rounded,  disc  not  very  convex,  posterior  callus 
rather  prominent.  Abdomen  rather  flattened;  first  ventral  suture  straight; 
the  others  distinctly  angulated  near  the  sides;  third  and  fourth  segments 
very  little  shorter  than  the  first  and  second;  fifth  about  one-half  longer  than, 
fourth;  pygidium  covered.  Legs  rather  -stout,  thighs  clavate,  with  a  very 
small  tooth  beneath,  tibiae  broadly  sinuate  on  the  inner  side;  terminal  hook 
distinct;  tarsi  with  third  joint  bilobed,  claws  with  a  long,  slender  tooth,  not 
bent  inwards. 

1.  P.  ulrai  n.  sp. 

Black,  clothed  with  small  brown  scaly  hairs;  beak  carinate,  striate  and 
punctured,  head  punctured.  Prothorax  densely  and  deeply  punctured,  with 
a  smooth,  slightly  elevated  dorsal  line.  Elytra  with  a  transverse  band  be- 
hind the  middle,  of  white  pubescence,  which  is  longer  and  more  dense  near 


214  CUKCULIONID^.  [LeConte. 

the  suture;  scutelluni  white;  strife  composed  of  quadrate  punctures,  inter- 
spaces flat,  densely  rugose.  Antenna?  and  legs  dark  reddisli  brown.  Length 
4  mm.;  .15  inch. 

Middle,  Southern  and  Western  States;  Mr.  C.  V.  Kiley  has  given  me  a 
specimen,  with  the  following  note  of  habits:  "On  elm;  makes  a  similar 
noise  to  the  Plum  Curculio,  August  5th,  1874."  Behind  the  white  band  the 
suture  is  velvety  black,  contrasting  well  with  the  diffused  brown  tint  into 
which  the  band  fades  towards  the  tip  of  the  elytra. 

This  curious  insect  is  suggestive  of  a  very  small  Pissodes,  with  which, 
however,  it  has  no  relations  beyond  the  mere  superficial  resemblance  in 
form  and  sculpture. 

THYSANOCNEMIS  n.  g. 

A  singvilar  genus  somewhat  resembling  Anthonomus  in  appearance,  but 
known  at  once  by  the  front  tibiaj  of  the  r?  being  broader  than  usual,  sinuate, 
and  densely  fringed  on  the  inner  side  with  long  hair. 

Beak  longer  than  the  prothorax,  slender,  moderately  curved,  cylindrical ; 
eyes  rather  large,  front  narrow;  antennae  inserted  about  one  fourth  from  the 
end  of  the  beak,  scape  slender,  reaching  the  eyes;  funicle  7-jointed,  first 
joint  long  and  thicker,  second  a  little  longer  than  third;  3-7  nearly  equal, 
scarcely  inci'easing  in  width;  club  rather  large,  elongate-oval,  very  dis- 
tinctly annulated.  Prothorax  wider  than  long,  narrowed  in  front,  and 
feebly  constricted,  broadly  rounded  on  the  sides.  Elytra  nearly  one  half 
wider  than  the  prothorax  at  base,  oblong,  slightly  narrower  from  tlie  hu- 
meri, which  are  prominent  and  rounded.  Ventral  segments  unequal;  first 
and  second  equal;  third  and  fourth  equal,  but  together  a  little  longer  than 
the  second;  fifth  longer  than  third  and  fourth  united;  first  suture  straight, 
the  others  angulated  at  the  sides;  fourth  suture  nearly  obliterated  at  the 
middle;  pygidium  partly  exposed,  perpendicular.  Legs  stout,  thighs  not 
toothed,  tibiae  of  (^  thick,  sinuate  on  the  inner  side,  armed  with  a  small  ter- 
minal liook;  front  pair  also  with  a  long  dense  fringe  of  yellow  hair  on  the 
inner  margin;  tibiae  of  9  niore  slender,  claws  with  a  long  tooth,  which 
curves  inwards,  as  in  most  species  of  Anthonomus. 

1.  T.  fraxini  n.  sp. 

.  Ferruginous,  clothed  with  yellow  hair.  Beak  finely  punctured,  obsoletely 
striate.  Prothorax  densely  punctured.  Elytra  with  punctured  striae  and 
slightly  convex,  nearly  smooth  interspaces  ;  with  a  broad  transverse  band 
occupying  tlie  middle  tliird,  and  dilated  at  the  margin,  less  densely  pubes- 
cent, and  of  a  darker  color.     Length  3.7  mm.;  .15  inch. 

One  male  given  me  by  Dr.  ]\Ielsheimer,  as  found  in  York  County,  Penn- 
sylvania; several  females  collected  by  Mr.  Pettit  on  ash  trees  in  Canada. 

2.  T.  helvolus  n.  sp. 

Brown,  clothed  with  short  sericeous  yellowish  brown  hair;  beak  long, 
slender,  much  curved,  nearly  smooth;  head  opaque,  punctured,  front  pubes- 
cent, not  wider  than  the  beak;  eyes  rather  large.  Prothorax  twice  as  wide 
as  long,  much  rounded  on  the  sides,  strongly  punctured,   sub-carinate. 


LeConte]  TYCHIIXI.  215 

Elytra  one-fourth  wider  than  the  prothorax,  oblong-elongate,  humeri 
rounded,  striae  impressed,  interspaces  nearly  Hat;  third  and  fifth  a  little 
wider.  Legs  yellow;  thighs  unarmed;  antennae  yellow,  long  and  slender, 
funiculus  7  jointed,  first  and  second  joints  elongate;  club  annulated,  elong- 
ate-oval. Length  3.8  mm.;  1.5  inch. 
Illinois  ;  one  female. 

TYLOPTERUS  n.  g. 

This  genus  is  established  upon  two  small  species  from  Texas,  clothed 
with  remarkably  dense  sericeous  pubescence,  and  having  small  tufts  of  hair 
and  very  prominent  elytral  callus.  The  beak  is  slender  and  curved ;  the 
eyes  large;  the  front  narrow  (about  one-third  as  wide  as  the  beak).  The 
antennse  are  inserted  about  one-fourth  from  the  end  of  the  beak,  slender;  the 
scape  reaches  the  eyes;  funiculus  7-jointed,  first  joint  as  long  as  the  two  fol. 
lowing;  second  joint  a  little  longer  than  the  third;  club  elongate-oval,  annu- 
lated. Prothorax  wider  than  long,  narrowed  in  front,  broadly  rounded  on 
the  sides,  convex.  Elytra  suddenly  more  than  one-third  wider  than  the 
prothorax,  humeri  prominent,  "elevated,  rounded,  sides  converging  a  little 
behind;  posterior  callus  very  prominent.  Ventral  segments  subequal,  ex- 
cept the  fifth,  which  is  as  long  as  the  two  preceding  united;  first  ventral 
suture  straight,  others  angulated  at  the  sides,  but  the  second  more  so  than 
the  third,  so  that  the  angles  of  the  second  segment  project  over  the  third 
nearly  to  the  fourth  segment.  Pygidium  of  9  nearly  covered  by  the  elytra; 
anal  segment  of  J^  large,  deflexed,  and  convex.  Legs  rather  long,  thighs 
clavate,  not  armed,  front  tibite  longer,  more  slender,  and  slightly  sinuate  in 
(^■,  terminal  hook  very  small;  claws  with  a  large  tooth  near  the  tip. 

1.  T.  pallidus,  n.  sp. 

Densely  clothed  with  pale  ashy  hair,  with  golden  reflexions,  which  con- 
ceals the  sculpture;  front  channeled.  Elytra  with  the  posterior  callus  in  the 
form  of  a  large  obtuse  tubercle,  causing  the  declivity  to  appear  broadly  con- 
cave; marked  with  two  irregular  transverse  bands  of  brown  hair,  the  pos- 
terior one  in  front  of  the  callus,  and  nan-owed  at  the  suture;  the  front  one 
commencing  at  the  middle  on  the  sides,  and  running  obliquely  backwards 
to  the  suture,  where  there  is  a  narrow  tuft  of  black  hair  occupying  the  first 
interspace  for  one  seventh  of  its  length;  small  pencils  of  black  hair  are  also 
seen  on  the  third,  fifth  and  seventh  interspaces  where  the  bands  cross  them; 
there  is  also  a  little  tuft  on  the  third  interspace  near  the  base.  Antenna; 
and  legs  ferruginous  yellow.  Beak  naked,  polished,  sparsely  punctured  at 
the  base.     Length  4  mm.;  .16  inch. 

One  9.  Texas,  given  me  by  Mr.  W.  Jiilich. 

2.  T.  varius,  n.  sp. 

Pubescence  beneath  white;  above  on  head,  prothorax  and  base  of  elytra 
brownish -yellow;  dorsal  line  of  prothorax  and  scutellum,  and  main  surface 
of  elytra  pale  cinereous,  suture  mostly  yellow;  two  broad  dark  brown  bands 
as  in  the  preceding,  but  separated  only  by  a  narrow  oblique  cinereous  line; 
interspaces  with  scattered  small  dots  of  longer  white  hairs;  posterior  callus 


210  CURCULIONIDJE. 


[LeConte. 


more  obtuse,  less  prominent,  tipped  witli  yellow  pubescence;  beak  and  an- 
tennae ferruginous,  the  former  sparsely  punctured.  Length  3  mm.;  .12 
inch. 

One  (^,  Texas.  Belfrage.  Easily  distinguished  by  the  different  color  of 
the  pubescence,  the  more  obtuse  elytral  callus,  and  the  absence  of  the  black 
sutural  spot. 

TYCHIUS  Sch. 

The  few  species  of  this  genus  thus  far  known  in  our  fauna  have  the  funic- 
ulus of  the  antennge  7-jointed,  with  the  exception  of  T.  setosus,  which 
may  perhaps  be  hereafter  recognized  as  generically  distinct;  they  resemble 
in  form  Centrinus,  though  the  contiguous  front  coxae  and  toothed  claws  will 
enable  them  to  be  immediately  distinguished. 

It  is  worthy  of  remark  that  the  first  observation  concerning  the  anal  seg- 
ment of  the  (j^,  is  recorded  by  Mr.  Brisout  de  Barneville.*  Had  the  impor- 
tance of  this  observation  been  recognized,  and  its  limitations  inquired  into, 
much  of  the  labor  I  have  devoted  to  the  study  of  the  Rhynchophorous  series 
would  have  been  saved,  and  our  knowledge  concerning  the  classification  of 
these  insects  would  be  much  farther  advanced. f 

Our  species  may  be  thus  distinguished  : 

Surface  clothed  with  scales  and  pubescence  only...  2. 

"  "  "         "        "    bristles 6. 

2.  Scales  narrower,  hair-like 3. 

"       oval 5. 

3.  Beak  rather  slender 4. 

"      slender  at  tip,  stout  at  base 1.  arator. 

4.  Sides  of  prothorax  rounded 2.  lineellus. 

"        "         "        oblique 3.  sordidus. 

5.  Scales  small,  dense,  not  mixed  with  hairs 4.  tectus. 

"       larger,  scattered,  with  pubescence  inter- 
mixed   5.  semisquamosus. 

6.  Of  usual  size,  elytra  oblong 6.  hirtellus. 

Very  small,  elytnx  oblong-oval 7.  setosus. 

1.  T.  arator  Gyll.,  Sch.  Cure.  iii.  414;  (synom.  excl.) 
Two  specimens,  Illinois  ;  Mr.  Walsh.  Say  apparently  confounded  this 
species  with  the  one  described  by  him  as  2'.  aratits;  and  Major  Gyllenhal 
suspecting  perhaps  the  existence  of  some  error  has,  while  quoting  Say  in 
synonymy,  given  a  different  name  to  the  insect  received  from  that  author. 
Although  of  the  size  (3.3  mm.;  .13  inch)  and  form  as  T.  aratus,  it  is 
quite  distinct  by  the  beak  narrowed  from  the  base  to  the  tip,  less  distinctly 
channeled,  and  more  densely  pubescent;  the  covering  is  of  fine  narrow 
prostrate  hair-like  scales  of  a  uniform  pale  dirt  color,  and  the  hind  thighs 
are  distinctly  toothed.     T.  aratus  is  unknown  to  me,  unless  it  be  T.  tectus. 

*Tycliius  de  France,  Ann.  Soc.  Ent.  Fr.  1862,  76.5. 

\Tychius  amcenus  Say,  belongs  to  Pach^tij chins,  (p.  16S);  T.  cornioiilatus  Fuhrseus 
to  tSmicronyx,  (p.  173.) 


LeConte.]  TYCHIINI.  217 

3.  T.  lineellus,  n.  sp. 

Black,  densely  clothed  with  coarse  cinereous  hair;  which  is  brownish 
upon  the  alternate  elytral  interspaces.  Beak  slender,  not  thicker  at  base, 
pubescent,  and  feebly  striate,  tip  naked;  eyes  small,  rounded,  distant,  mod- 
erately convex.  Prothorax  a  little  longer  than  wide,  narrowed  in  front  of 
the  middle,  rounded  on  the  sides,  constricted  near  the  tip;  median  line  cin- 
ereous, two  indistinct  stripes  brownish.  Elytra  wider  than  prothorax,  ob- 
long-oval, humeri  rounded,  convex;  stri;T3  well  impressed,  interspaces  flat, 
alternately  clothed  with  pale  brown  hair;  suture  and  scutellum  cinereous. 
Thighs  stout,  clavate,  sinuate  beneath  near  the  tip,  but  not  toothed. 
Length  ;).3-4  mm.;  .13-  .16  inch. 

California,  three  specimens,  of  which  two  were  collected  by  Mr.  Crotch, 
at  Santa  Barbara  and  Los  Angeles. 

3.  T.  sordidus,  n.  sp. 

Black,  densely  clothed  with  coarse,  pale  brown  hair,  broader  and  scale- 
like beneath;  beak  pubescent  except  at  tip,  feebly  striate,  front  channeled. 
Prothorax  gradually  narrowed  from  the  base,  sides  oblique,  broadly  rounded, 
feebly  constricted  at  tip.  Elytra  oblong-oval,  wider  than  prothorax,  humeri 
rounded,  striae  well  impressed,  interspaces  flat;  in  certain  directions  some 
of  the  hairs  have  a  metallic  lustre.  Thighs  stout,  clavate,  sinuate  beneath 
near  the  tip;  hind  pair  obtusely  but  not  distinctly  toothed.  Length  4  mm. ; 
.16  inch. 

One  specimen,  Illinois.  Differs  from  the  preceding  chiefly  by  the  uniform 
pubescence,  and  the  less  rounded  sides  of  the  prothorax. 

4.  T.  tectus,  n.  sp.     ?  T.  aratus  Say,  Cure.  26;  ed.  Lee.  i,  294. 
Blackish-brown,  very  densely  covered  with  small,  oval,  closely  applied 

brownish  white  scales.  Beak  slender,  not  thicker  at  the  base,  as  long  as  the 
head  and  prothorax,  slightly  curved;  pubescent  except  at  tip,  finely  chan- 
neled for  half  its  length;  front  with  a  fine  transverse  impressed  line  be- 
tween the  eyes.  Prothorax  wider  than  long,  narrowed  in  front  of  the 
middle,  much  rounded  on  the  sides,  feebly  constricted  near  the  tip.  Elytra 
a  little  wider  than  the  prothorax,  oblong,  humeri  rounded,  striae  well  im- 
pressed, interspaces  flat.  Thighs  clavate,  sinuate  beneath,  but  not  toothed. 
Length  3  mm. ;  .12  inch. 

One  specimen,  Kansas.  The  suture  and  sides  of  the  elytra  and  dorsal 
line  and  two  vitta?  of  the  prothorax  are  paler,  but  not  conspicuously  so;  the 
scales  of  the  under  surface  are  broader  than  those  of  the  vipper  surface.  The 
teeth  of  the  claws  are  more  approximate  than  in  the  foregoing  species.  The 
scales  of  the  prothorax  converge  backwards,  as  described  by  Say,  but  the 
beak  is  not  transversely  indented  over  the  insertion  of  the  antennae,  and 
the  size  is  smaller. 

5.  T.  semisquamosus  n.  sp. 

Elongate,  dark  brown,  clothed  with  coarse,  yellowish  pubescence,  and 
large  oval  cinereous  scales,  which  are  dense  on  the  under  surface,  on  three 
narrow  prothoracic  lines  extending  from  the  middle  to  the  base,  and  on  the 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  2b 


218  CURCULIO?^IDJE. 


(LeUonte. 


first  interspace  of  the  elytra;  elsewhere  they  are  scattered  and  separate.  Beak 
as  long  as  the  prothorax,  curved,  densely  pubescent,  narrow  at  tip,  stouter 
at  base.  Prothorax  densely  punctured,  as  long  as  wide,  rounded  on  the 
sides.  Elytra  oblong-elongate,  about  one  third  wider  than  the  prothorax 
at  base,  sides  parallel;  scutelluni  clothed  Avith  white  scales;  stria3  fine,  inter- 
spaces flat.  Anteunpe  brown,  funicle  7-jointed,  first  joint  longer  and  stouter, 
2-7  equal  in  length,  gradually  a  little  broader;  legs  brown,  thighs  broadly 
toothed.     Length  2.5  mm. ;  .10  inch. 

Fort  Tejon,  California,  Mr.  Crotch.  Resembles  in  form  the  next  species, 
but  differs  by  the  pubescence  being  of  the  usual  soft  kind,  without  admix- 
ture of  stiff,  erect  bristles.  It  is  also  smaller,  and  the  prothorax  is  not  wider 
than  long,  and  the  thighs  are  broadly  toothed. 

6.  T.  hirtellus  n.  sp. 

Elongate,  dark  brown,  clothed  with  yellow-brown  scales  and  pubescence; 
with  rows  of  longer  reclinate  hairs  on  the  elytra;  scales  rather  small, 
rounded  oval.  Beak  testaceous  brown,  narrow  at  tip,  stout  at  base,  as  long 
as  the  prothorax,  curved,  pubescent,  tip  naked.  Prothorax  wider  than  long, 
strongly  I'ounded  on  the  sides,  narrowed  and  moderately  constricted  at  tip, 
clothed  with  scales  beneath,  and  on  the  sides;  dark  brown  with  a  broad 
lateral  stripe  of  pale  brown,  and  a  narrower  dorsal  stripe  of  white  pubes- 
cence. Elytra  oblong-elongate,  wider  than  the  prothorax,  sides  parallel, 
then  rounded  at  the  tip;  strise  fine,  well  marked,  punctures  obscured  by  the 
dense  covering  of  scales.  Antennae  brown,  funicle  7-jointed,  first  joint 
longer  and  stouter;  2-7  equal,  gradually  a  little  stouter;  legs  brown,  thighs 
not  toothed.     Lengths  mm.;  .12  inch. 

Texas,  Belfrage;  two  specimens. 

5.  T.  setosus,  n.  sp. 

Very  small,  elongate,  brown,  above  coarsely  pubescent,  beneath  densely 
covered  with  large  scales;  beak  nearly  straight,  slender;  head  scaly.  Pro- 
thorax hardly  wider  than  long,  narrowed  in  front,  sides  oblique,  scarcely 
rounded.  Elytra  a  little  wider  than  the  prothorax,  strife  well  impressed,  in- 
terspaces slightly  convex,  each  with  a  row  of  pale  bristles.  Beak,  antenna) 
and  feet  ferruginous;  thighs  unarmed,  not  sinuate  beneath;  funicle  6- 
jointed.     Length  1.2  mm. ;  .045  inch. 

Fort  Yuma,  California;  quite  different  in  appearance  from  the  other 
species,  and  resembling  a  small  Erirhinus;  the  ventral  sutures  and  claws 
are,  however,  of  this  genus.  This  is  one  of  the  smallest  Curculionides  in 
our  fauna.  The  last  ventral  segment  is  broadly  foveate  in  my  specimens, 
but  this  is  perhaps  a  sexual  character. 

SIBYNES  Germ. 

I  refer  to  this  genus  a  small  species  from  Lower  California  which  differs 
from  the  others  of  this  group  by  the  elytra  being  separately  rounded  at  tip, 
thereby  exposing  a  large  part  of  the  pygidium.  The  funicle  of  the  an- 
tennae is  6-jointed;  the  first  joint  is  elongate,  the  second  a  little  longer  than 


LeConte.] 


TYCHIINI.  219 


the  third,  and  the  remaining  joints  are  gradually  a  little  broader;  club 
small,  oval,  annulated.  The  claws  are  armed  with  converging  teeth,  and 
the  thighs  are  not  toothed. 

1.   S.  fulvus  u.  sp. 

Above  densel}^  clothed  with  fulvous  scales,  scutellum,  and  beneath  cin- 
ereous; beak  finely  punctured,  pubescent  at  base,  narrowed  towards  the 
tip.  Prothorax  wider  than  long,  much  narrowed  and  distinctly  constricted 
in  front,  bisinuate  at  base,  with  the  medial  angle  obtusely  rounded.  Elytra 
at  base  not  wider  than  the  prothorax,  humeri  oblique,  obtuse;  strias  im- 
pressed, interspaces  flat.    Beak,  antennae  and  legs  ferruginous. 

Cape  San  Lucas,  Lower  California;  Mr.  Xantus. 

PARAGOGES  n.  g. 

A  curious  little  species  from  California  constitutes  this  genus.  It  has  all 
the  essential  characters  of  Tycliius,  except  that  the  pygidium  is  somewhat 
exposed,  and  the  claws  are  small,  simple  and  approximate.  The  beak  is 
longer  than  the  prothorax,  cylindrical,  nearly  straight,  and  rather  slender. 
The  antennal  grooves  descend  obliquely  below  the  eyes,  which  ai'e  small, 
rounded,  and  coarsely  granulated.  The  funicle  is  6-jointed;  first  and  second 
joints  longer,  the  first  being  stouter;  3-G  gradually  a  little  broader,  some- 
Avhat  rounded;  club  oval-pointed,  pubescent,  annulated.  Prothorax  as  long 
as  wide,  constricted  near  the  tip,  without  postocular  lobes.  Elytra  oblong- 
elongate,  wider  than  the  prothorax,  separately  rounded  at  tip.  Angles  of 
second  ventral  segment  prolonged  as  far  as  the  fourth  segment.  Legs  mod- 
erate, thighs  not  toothed;  tibiae  obliquely  truncate  at  tip,  scarcely  percep- 
tibly mucronate;  tarsi  spongy  beneath,  third  joint  broader,  bilobed;  claws 
small,  simple,  not  divergent. 

1.  P.  maculatus  n.  sp. 

Blackish  brown,  densely  clothed  with  brownish  gray  scales,  head  and 
middle  of  prothorax  darker;  the  latter  with  a  few  white  hairs  near  the 
base.  Elytra  with  a  large,  dark  spot  extending  from  the  base  to  the  middle, 
and  from  the  suture  to  the  third  stria;  this  spot  is  eraarginate  on  the  sides, 
and  rounded  behind;  at  one-fourth  from  the  tip  is  a  transverse  undulated 
dark  line  extending  from  the  fourth  stria  to  the  suture;  the  space  between 
this  line  and  the  spot  is  clothed  with  nearly  white  scales;  the  striae  are  ob- 
scured by  the  dense  covering  of  scales.  Scutellum  covered  with  pale  scales. 
Antennae  nearly  black.     Length  2  mm. ;"  .08  inch. 

California  :  two  specimens  collected  at  San  Diego,  by  Mr.  Crotch.  This 
is  a  very  pretty  and  easily  recognized  insect. 

Tribe  XII.     cioxixi. 

In  this  tribe  the  funicle  of  the  antenna?  has  but  five  joints;  the  club  is 
either  articulated  or  annulated.  The  front  coxae  are  very  large  and  promi- 
nent, contiguous  in  some  of  the  genera,  separate  in  others;  the  claws  are 
simple,  approximate,  fi-ee  in  Miarus,  but  connate  in  the  other  genera. 


220  CURCULIONID^.  fLeConte. 

The  form  is  robust,  the  beak  cylindrical;  antennae  inserted  at  about  two- 
thirds  the  length,  the  scape  attains  the  anterior  margin  of  the  eyes,  which 
are  oval,  transverse,  and  moderate  in  size,  and  widely  separated  above  and 
below.  The  front  coxae  are  large,  and  the  sternum  is  short  both  before  and 
behind;  the  middle  and  hind  coxaj  are  separated,  the  side  pieces  of  the  met- 
asternum  narrow,  and  the  margin  of  the  elytra  not  sinuate;  the  side  pieces 
of  the  mesosteruum  do  not  intervene  between  the  base  of  the  prothorax  and 
the  elytra.  The  ventral  segments  are  not  very  unequal  in  length,  though 
the  third  and  fourth  are  a  little  shorter;  the  sutures  are  deep  and  angulated 
in  the  first  two  genera,  but  only  slightly  curved  in  Qymnetron  and  Miarus. 

The  species  in  our  fauna  indicate  four  genera. 

Pygidium  covered 2. 

"         exposed,  antennal  club  annulated 3. 

2.  Antennal  club  articulated NANOPHYES. 

"    annulated CIONUS. 

3.  Front  coxae  contiguous GrYMNETRON. 

"  "      separate MIARUS. 

NANOPHYES  Sch. 

1.  N.  pallidulus  Sch.,  Curc.iv.  787;  EhyncJicenus pall.  Grav.,  Zool.  Syst. 
203;  &c. 

One  specimen  from  Louisiana  agrees  with  the  figure  of  this  Southern 
European  species,  as  given  by  Du  Val;  Gen.  Col.  Eur,  pi.  28,  f.  135.  It 
is  a  small,  stout  insect,  ferruginous,  thinly  and  finely  pubescent,  with  the 
head,  beak,  oblique  band  near  the  base  of  the  elytra,  and  small  posterior 
spot  on  each  side,  dark.  The  stritB  of  the  elytra  are  deep,  and  the  inter- 
spaces somewhat  convex;  thighs  unarmed.     Length  2  mm. ;  .08  inch. 

CIONUS  Clairville. 

1.  C.  scrophularise  Oliv.,  Ent.  No.  83,  p.  106;  pi.  23,  f.  314;  &c.  &c. 
Sell.,  Cure.  iv.  723;  Curculio  scropli.  Linn.,  Fauna  Suec.  603;  Syst.  Nat.  ii, 
614;  &c. 

This  common  European  species  is  mentioned  by  Say,  (Cure.  21;  ed.  Lee. 
i,  287)  as  occurring  in  the  United  States,  but  without  definite  locality.  Dr. 
Horn  has  recently  received  a  specimen  collected  in  Louisiana  by  Dr.  S.  V. 
Summers. 

GYMNETRON  Sch. 

1.  Gr.  teter  Sch.,  Cure.  iv.  755:  &c.  BhyncJimnus  teter¥&hv.,  Syst.  El.  ii, 
448;  Our calio  teter  ¥&bi:,  Ent.  Syst.  i,  ii,  406;  &c. 

Not  rare  on  Verbascum  thapsus  in  Pennsylvania.  I  have  compared  it 
with  European  specimens,  and  find  no  difference.  It  is  a  broadly  ovate 
black  insect,  covered  with  partially  erect  yellowish  gray  pubescence,  with 
the  prothorax  densely  punctured,  much  broader  than  long;  elytral  striai 
well  impressed,  interspaces  slightly  convex,  rugosely  punctured;  tips  sepa- 
rately rounded;  beak  punctured,  finely  channeled.  Thighs  thick,  strongly 
toothed.     Length,  3.7  mm.;  .15  inch. 


LeConte.]  ClOmXI.  221 

MIARUS  Sell. 

1.  M.  hispiduluG,  n.  sp. 

Ovate,  convex,  black,  -vvith  a  feeble  bronzed  tinge,  clothed  with  grayish 
erect  hairs.  Beak  long  and  slender,  extending  beyond  the  middle  coxae, 
smooth,  feebly  punctured  at  base.  Prothorax  wider  than  long,  narrowed 
from  the  base  forwards,  obliquely  but  slightly  rounded  on  the  sides,  densely 
and  finely  punctured.  Elytra  a  little  wider  than  the  prothorax,  shining, 
striaj  deep,  slightly  punctured,  interspaces  nearly  flat,  rugose  and  punctu- 
late.  Thighs  not  toothed;  tibiie  slender,  straight,  not  armed  with  a  hook. 
Length  2  mm. ;  .08  inch. 

Texas,  Illinois,  Florida  and  Pennsylvania. 

In  well  preserved  specimens  the  sides  of  the  prothorax  beneath,  and  the 
trunk  are  clothed  with  dirty  white  scales.  This  species  is  allied  to  the  Euro- 
pean M.  distincius,  but  diftersby  the  unarmed  thighs. 

Tribe  XIII.     DEREliOSiisri. 

A  tribe  which  contains  a  few  small  species  of  oblong  elongate  form, 
glabrous,  and  feebly  punctured,  with  the  hind  angles  of  the  prothorax  rect- 
angular and  better  defined  than  usual.  The  beak  is  slender,  long,  cylin- 
drical, and  is  usually  projected  forwards;  it  can,  at  most,  be  bent  perpendicu- 
larly downwards  in  repose ;  the  antennal  grooves  descend  obliquely  to  the 
lower  edge  of  the  eyes,  which  are  moderate  in  size,  nearly  round,  coarsely 
granulated  and  distant  from  the  prothorax.  The  antennae,  inserted  one-fourth 
from  the  tip,  are  slender,  the  scape  reaches  the  eyes;  the  funicle  is  7- 
jointed ;  first  joint  stouter,  and  as  long  as  the  two  following  united ;  the  second 
and  the  succeeding  ones  become  slightly  broader,  rather  closely  connected 
and  merge  into  the  club,  which  is  pubescent,  elongate,  pointed,  and  strongly 
anuulated.  The  prothorax  is  quadrate  for  the  greater  part,  then  suddenly  nar- 
rowed to  the  tip,  which  is  constricted ;  near  the  tip  there  is  a  short,  acute 
oblique  lateral  ridge  representing  a  part  of  what  is  the  lateral  margin  of  the 
pronotum  in  other  Coleoptera.  The  prosternum  is  very  long  in  front  of  the 
coxae,  which  are  nearly  contiguous  in  our  species,  though  distinctly  sepa- 
rated in  the  foreign  genera;  it  is  not  emarginate  in  front,  and  the  prosternal 
sutures  are  obliterated.  The  elytra  are  scarcely  wider  than  the  prothorax, 
parallel  on  the  sides,  conjointly  rounded  behind,  so  as  to  cover  the  pygid- 
ium;  the  surface  is  punctulate,  and  the  striae  are  obsolete.  The  middle 
coxae  are  moderately,  separated;  the  side'pieces  are  diagonally  divided,  and 
the  epimera  attain  widely  the  base  of  the  prothorax  beneath,  though  they 
do  not  intervene  between  the  elytra  and  the  pronotum.  Metasternum  mod- 
erately long,  side  pieces  narrow,  wider  in  front.  First,  second,  and  fifth 
ventral  segments  long;  third  and  fourth  united  about  equal  to  each  of  them; 
surface  rather  flat,  sutures  fine  and  well  impressed,  nearly  straight;  second 
suture  slightly  curved  at  the  sides;  in  the  (^,  the  anal  segment  is  slightly 
visible  at  the  tip  of  the  fifth  ventral.  Legs  rather  stout,  thighs  compressed 
not  toothed;  tibiae  truncate  at  tip,  not  mucronate;  tarsi  spongy  beneath; 


222  CURCULIONID^.  [LeConte. 

third  joint  broad,  deeply  bilobed;  claws  divergent,  broadly  toothed  in  our 
species;  simple  in  the  foreign  genera. 

While  having  a  slight  relation  with  the  Magdalini  and  Anthonomini 
this  tribe  adds  to  the  characters  it  has  in  common  with  them  and  other 
tribes,  one  peculiar  to  itself;  the  prosternum  very  long  in  front  of  tlie 
coxae.  The  space  between  the  front  coxaj  is  almost  imperceptible  in  our 
two  species,  but  as  the  descriptions  of  the  foreign  genera  mention  them  as 
modei'ately  distant,  I  infer  that  that  character,  as  well  as  the  form  of  the 
claws,  must  be  regarded  of  small  value  in  this  tribe. 

NOTOLOMUS  n.  g. 

This  new  genus  is  sufficiently  described  in  the  characters  of  the  tribe  as 
detailed  above.  It  merely  remains  to  say  that  it  agrees  entirely  with  Dere- 
lomus  in  appearance,  but  differs  by  the  neai'lj'  contiguous  front  coxa?,  and 
broadly  toothed  claws.  From  the  South  American  Evergei,  it  abundantly 
differs  by  the  form  of  body. 

Two  species  are  known  to  me,  both  atlecting  the  palmetto  tree  of  the 
Southern  maritime  region  : 

Testaceous,  head  and  prothorax  black 1.  bicolor. 

"  ;  elytra  with  an  oblique  dark  band  near  the  base  2.  basalis. 

1.  N.  bicolor,  n.  sp. 

Testaceous,  head,  beak  and  prothorax  black.  Beak  slender,  as  long  as 
the  prothorax,  slightly  curved,  finely  punctured,  with  a  narrow,  indistinct 
smooth  dorsal  line,  head  similarlj'  punctured.  Prothorax  finely  punctured, 
as  wide  as  long,  sides  parallel  for  three-fourths  the  length,  where  there  is  a 
distinct  lateral  angle  produced  by  the  posterior  extremity  of  the  small,  ob- 
lique ridge  mentioned  above;  the  outline  then  is  oblique,  converging  rap- 
idly to  the  tip,  which  is  constricted  at  the  sides;  tip  truncate,  not  reflexed, 
base  bisinuate.  Scutellum  triangular,  black,  punctulate.  Elytra  testaceous, 
with  two  transverse  bands  slightly  darker;  surflxce  punctulate,  with  distant 
rows  of  larger  punctures,  representing  the  striaj.  Meso-  and  metathorax, 
legs  and  antenna?  testaceous,  the  latter  more  slender  than  in  the  next 
species,  with  the  second  joint  of  the  funicle  longer  than  the  third.  Length 
3.3-4  mm.;  .08-.  14  inch. 

Enterprise  and  Capron,  Florida;  April  and  INIay;  Messrs.  Hubbard  and 
Schwarz.     On  Ghamcerops  palmetto;  less  abundant  than  the  next  species. 

2.  N.  basalis,  n.  sp. 

Testaceous,  head  and  beak  brown ;  elytra  with  an  oblique  dark  band  com- 
mencing near  the  base  of  the  third  interspace,  and  running  to  the  suture. 
Beak  moderately  curved,  slender,  punctured.  Prothorax  as  long  as  wide, 
finely  punctured,  strongly  constricted  at  the  tip,  which  is  truncate,  base 
bisinuate.  Elytra  punctulate,  with  distant,  indistinct  rows  of  scarcely 
larger  punctures.  Beneath  testaceous,  antennae  with  the  funicle  stouter; 
second  joint  scarcely  longer  than  the  third.     Length  1.8  mm. ;  .075  inch. 

(^.  Beak  as  long  as  the  prothorax,  stouter  than  in  9  ;  sides  of  prothorax 
with  a  distinct  cusp  in  front  of  the  middle. 


LeConte.] 


DEliELOMINI.  223 


9.  Beak  longer  than  the  prothorax,  more  slender;  sides  of  nrothorax 
more  strongly  converging  from  tbe  base,  rounded  and  not  angulated  in 
front  of  the  middle. 

Capron  and  Sand  Point,  Florida,  Messrs.  Hubbard  and  Schwarz.  On 
leaves  of  Chamcerops  palmetto,  abundant;  varies  in  having  a  broad,  dorsal, 
prothoracic  stripe  brown;  also  in  the  elytra  band  becoming  obsolete. 
Thi?  species  is  Derelomus  signatieollis  and  flavicans  of  Dejean's  Catalogue. 
D.  troglodytes  is  smaller  and  entirely  testaceous,  but  is  probably  only  an 
individual  variation. 

Tribe  XIV.     r^MOSACC'INl. 

This  tribe  is  composed  of  a  single  genus  Liemosaccus,  of  which  one 
species  occurs  in  our  Southern  States.  It  is  easily  known  by  tbe  exposed 
pygidium;  the  large,  prominent  and  distant  front  coxae,  and  the  breast  not 
channeled.  The  side  pieces  of  the  mesothorax  are  verj'- transverse,  and  in- 
tervene somewhat  between  the  prothorax  and  elytra;  the  episterna  of  the 
metathorax  are  wide,  and  the  epimera  are  visible  behind.  The  ventral  su- 
tures are  straight;  first  and  second  segments  equal,  longer  than  the  third 
and  fourth.  The  legs  are  stout  and  short,  and  the  tibiae  are  strongly  hooked 
at  tip;  the  tarsi  are  dilated,  and  the  last  joint  is  very  slender,  with  two  very 
small,  simple  claws. 

The  beak  is  short,  stout  and  cylindrical;  the  antennal  grooves  extend  to 
the  lower  margin  of  the  eyes,  which  are  oval  and  transverse.  The  antennae 
are  inserted  about  the  middle,  and  are  scarcely  geniculated;  the  funicle 
consists  of  seven  joints  and  merges  gradually  into  the  oval,  annulated, 
pubescent  club.  There  is  nothing  peculiar  in  the  mouth;  the  gular  pedun- 
cle is  long,  the  mentum  small,  and  the  palpi  short  and  small;  the  mandi- 
bles are  curved,  and  of  the  usual  form. 

The  affinities  of  this  tribe  seem  to  be  in  the  direction  of  Barini. 

L^MOSACCUS  Sch. 

1.  L.  plagiatus  Say,  Cure.  G;  ed.  Lee.  i,  265;  Gyll.,  Sch.  Cure,  iii,  626; 
Curculiopl.  Fabr.  Ent.  Syst.  El.  ii,  485;  Eldna  plagiata  Oliv.  83,  234,  pi.  33, 
fig.  512. 

Var.  Curculio  Nephele  Herbst,  Kiifer,  vii,  54,  pi.  99,  fig.  4.  Magdalis 
Nephele  Germ.,  Ins.  Nov.  192. 

Middle,  Western,  and  Southern  States,  as  far  as  Texas;  not  rare  on  oak 
leaves.  Varies  in  the  size  of  the  red  elytral  spot,  which  sometimes  occupies 
the  whole  disc,  leaving  only  a  narrow  margin  black.  The  beak  is  opaque, 
flattened  above  and  rugosely  punctured  in  (j^;  cylindrical,  shining,  and 
sparsely  punctured  in  9  • 

Tribe  XV.    CRYProRiiYNCHiNr. 

This  tribe  contains  a  large  number  of  genera,  which  difler  so  much  in 
appearance  and  details  of  structure,  that  scarcely  anything  can  be  predi- 
cated of   all.     It  may,  however,  be  stated  in  general   terms,  that  while 


224  CURCULIOJSTD^. 


[LeConte. 


in  common  with  several  other  tribes,  the  beak  is  received  upon  the 
sternum,  and  lies  in  repose  in  a  pectoral  groove,  this  tribe  differs  from 
Zygopini  in  the  smaller  size,  and  different  position  of  the  eyes,  which  are 
more  or  less  covered  by  the  prothoracic  lobes ;  and  from  CeutorhyncMni  by 
the  pygidium  being  entirely  covered. 

The  pectoral  groove  varies  in  length  according  to  the  group;  the  front 
coxse  are  contiguous  in  many  species  of  Conotrachelus,  and  other  genera 
of  the  group  Ithypori.  The  side  pieces  of  the  mesothorax  are  obliquely  di- 
vided, and  the  epimera  attain  largely  the  base  of  the  prothorax  on  the 
under  surface,  without  intervening  between  the  pronotum  and  the  elytra. 
The  metasternum  is  either  long  or  short;  the  side  pieces  narrow,  and  di. 
lated  in  front.  The  ventral  segments  vary  in  length;  the  first  suture  is 
straight  or  sinuate,  deep,  or  obliterated;  the  second  and  third  are  some- 
what angulated  at  the  sides.  The  tibiae  are  armed  with  a  strong  hook  at 
the  tip,  and  the  articular  surface  is  oblique;  the  claws  are  simple,  or 
toothed. 

But  three  groups  are  represented  in  our  fauna,  of  which  the  second  is  es- 
tablished upon  a  new  genus. 

Pectoral  groove  confined  to  the  prosternura,  open  behind  : 

Beak  long,  tarsi  dilated Ithypori. 

Beak  short,  tarsi  narrow Acampti. 

Pectoral  groove  extending  to  the  mesosternum,  sharply 

limited  behind €ryptorhy ucbi. 

Group  I.     Ithypori. 

In  tliis  group  the  pectoral  groove  is  confined  to  the  prosternum,  and  is 
not  closed  behind,  the  mesosternum  is  sometimes  flat,  sometimes  suddenly 
declivous.  The  eyes  are  coarsely  granulated,  partly  covered  in  repose  by 
the  prothoracic  lobes,  which  are  sometimes  very  well  developed,  but  in  other 
genera  are  broad  and  not  prominent. 

The  prothorax  is,  in  most  species,  comparatively  smaller  than  in  the  other 
groups,  and  usually  very  coarsely  sculptured.  The  elytra  are  wider  than 
the  prothorax,  with  prominent  humeri,  the  outer  stria  is  usually  abbre- 
viated, and  there  is  a  tendency  to  an  epipleural  fold.  The  thighs  are 
toothed  in  our  genera;  the  tibiae  slender,  hooked  at  the  tip;  the  claws 
usually  toothed,  though  sometimes  simple,  or  even  connate  at  the  base. 

The  front  coxae  are  sometimes  contiguous,  a  character  not  observed  in  the 
other  groups  of  this  tribe. 

Postocular  lobes  broad,  not  prominent 2. 

"               "     prominent,   front  coxae   contig- 
uous; claws  toothed;  sometimes  cleft CONOTRACHEIiUS. 

2.  Claws  slender,  simple 3. 

"     approximate,  toothed RHYSSEMATUS. 

connate  at  base CHALOODERMUS. 

3.  Elytra  at  base  not  wider  than  prothorax ZAG-LYPTUS. 

"       "     "    much  wider MICROHYUS. 


LeConte.] 


cryptorhy:n^chiot:.  225 


CONOTRACHBLUS  Sch. 


This  genus  contains  some  of  the  most  formidable  enemies  of  our  culti- 
vated fruits,  especially  the  stone  fruits,  such  as  the  plum,  apricot,  &c. 

They  are  easily  recognized  Ijy  the  characters  given  above,  to  which  may 
be  added  the  folloAving,  which  serve  to  distinguish  this  from  some  foreign 
genera;  the  antennal  grooves  are  not  confluent  behind,  and  the  hind  thighs 
are  not  pedunculated, 

A  singular  though  harmless  error  has  been  committed  by  Schonherr  and 
his  collaborators  in  describing  the  antennae  of  most  of  the  species  as  "longe 
pone  medium  rostri  sitae."  Geometrically  this  is  correct,  as  the  rostrum 
when  not  used  in  feeding,  or  in  its  equally  legitimate  occupation  as  ovipos- 
itor, is  inflexed  upon  the  breast,  and  directed  backwards;  its  tip  is  there- 
fore in  that  position  the  posterior  extremity.  Morphologically,  however, 
the  beak  being  an  extension  of  the  longitudinal  axis  of  the  body,  the  tip  is 
the  anterior  extremity;  the  word  pone  in  the  description  should  therefore 
have  been  ultra.  The  insertion  of  the  antennae  behind  the  middle  of  the 
beak  probably  does  not  occur  in  this  tribe,  or  group,  though  in  some  of  the 
long  beaked  species  of  this  genus  (Nos.  11-13,)  they  attain  nearly  that  po- 
sition. 

The  species  indicate  the  following  divisions : 

Claws  divergent,  toothed 2".. 

"    approximate,  cleft,  (as  in  Anthonomus) 3. 

2.  Prothorax  not  sulcate,  usually  carinate I. 

(A.  Elytral  costae  interrupted;  thighs  bidentate  : 
B.           "      entire,  or  absent,  thighs  unidentate). 
Prothorax  broadly  sulcate,  with  two  crests  in  front II, . 

3.  Pubescence  prostrate,  fine III. 

"  mixed  with  stout,  erect  bristles IV. 

As  these  divisions  require  fuller  definitions,  the  synoptic  table  of  the- 
species  will  be  found  under  each. 

Division  I— A.  Sp.  1-9. 

The  species  of  this  division  are  related  to  C  nenupliar,  and  agree  with 
it  in  having  the  costae  of  the  third  and  fifth  interspaces  of  the  elytra  more 
or  less  interrupted  in  two  places.  The  prothorax  is  not  sulcate,  but  usually 
distinctly  carinate,  and  strongly  constricted  near  the  tip;  the  thighs  are  bi- 
dentate. These  characters,  except  the  last,  are  evanescent  in  C.  nimsus, 
which  shows  a  passage  to  Division  II,  and  appears  closely  allied  to  C 
Uucophceahis. 

The  pubescence  is  short,  line  and  appressed;  it  forms  a  more  or  less  com- 
plex pattern  of  slender  pale  lines  each  side  of  the  prothorax,  and  a  bi'oad 
band  behind  the  middle  of  the  elytra.  In  well  preserved  specimens  the 
color  and  distribution  of  the  pubescence  afford  easy  characters  for  the  recog- 
nition of  the  species;  but  otherwise,  they  are  closely  allied,  and  require 
care  in  their  separation. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  2C 


226  CUECULIOXLD^. 


[LeConte. 


CostctJ  of  elytra  abruptly  interrupted 2. 

"       feebly 4. 

2.  Beak  stouter,  shorter  and  more  curved 3. 

"      longer,  more  slender;  elytral  band  pale  yellow  1.  juglandis. 

3.  Elytral  band  white 2.  albicinctus. 

"          "           "    and  yellow 3.  nenuphar. 

4.  Prothorax  carinate 5. 

"            with  a  small,  median  callus 4.  retentus. 

' '            not  or  scarcely  carinate 6. 

5.  Ventral  segments  coarsely  punctured 5.  seniculus. 

"              "         finely  and  sparsely  punctured 6.  afifinis. 

6.  CostiB  of  elytra  distinct 7. 

"              "      obsolete,  elytra  in  great  part  white..  9.  nivosus. 

7.  Elytral  band  well-defined 7.  elegans. 

"         "     not  well-defined 8.  aratus. 

1.  C.  juglandis,  n.  sp. 

Dark  brown,  varied  with  black,  pubescence  fulvous,  or  dirty  yellow, 
forming  a  curved  bifurcated  line  each  side  of  the  prothorax,  and  a  broad 
band  behind  the  middle  of  the  elytra.  Beak  longer  than  the  head  and  pro- 
thorax, cylindrical,  not  stout,  shining,  sparsely  punctured,  with  a  broad, 
lateral  groove,  and  two  short,  finer  ones  near  the  base.  Prothorax  coarsely 
punctured  and  rugose,  with  a  very  short  carina  before  the  middle,  and  four 
discoidal  tubercles;  broadly  constricted  in  front.  Elytra  with  sti'iae  of  large 
quadrate  punctures,  alternate  iusterspaces  strongly  costate,  the  third  and 
fifth  interrupted  forming  on  each  a  high  crest,  with  a  basal  and  sub -apical 
elevation.  Ventral  segments  sparsely  punctured,  fifth  more  finely  and 
densely.  Legs  somewhat  annulated,  thighs  bidentate.  Length  7  mm. ;  .27 
inch. 

Middle  States,  on  walnut.  This  species  is  closely  allied  to  the  plum 
weevil,  G.  nenuphar,  and  has  been  confounded  with  it  until  the  present 
time.  It  is,  however,  much  larger,  the  beak  is  longer,  more  slender,  and 
less  curved ;  the  prothorax  is  bi'oader  and  more  rounded  on  the  sides,  the 
crest  of  the  fifth  elytral  interspace  is  longer,  almost  as  large  as  that  of  the 
third,  and  overlaps  it  far  more  than  half  its  length,  and  finally  the  pubes- 
cence is  of  a  nearly  uniform  color,  so  tliat  the  band  of  the  elytra  is  not 
variegated  with  white.  The  ventral  segments  are  much  less  densely  punc- 
tured. It  is  mentioned  as  aphytophagic  species  by  Mr.  B.  D.  Walsh,  Illinois 
State  Report,  1868,  p.  65. 

2.  O.  albicinctus,  n.  sp. 

Closely  allied  to  the  preceding  and  next  species.  Beak  longer  than  tlie 
prothorax,  stout,  curved,  deeply  striate  and  punctate.  Prothorax  as  in  the 
preceding,  but  with  a  complex  line  each  side  of  yellow  and  gray  hairs. 
Elytra  as  in  the  preceding,  with  the  crest  of  the  fifth  interspace  less  ele- 
vated, and  scarcely  separated  from  the  suJi^-basal  part  of  the  costa  :  poste  - 
rior  band  broad,  narrower  towards  the  sict^s,' composed  of  pure  white  hair; 


LeConte.] 


cryptoiihy:n^chini.  227 


at  the  base  of  the  third  interspace  is  a  conspicuous  white  spot.  Ventral  seg- 
ments coarsely  and  tolerably  densely  punctured;  fifth  more  densely,  a  little 
less  coarsely.     Thighs  annulated,  bidentate.     Length  4.7  mm.;  .19  inch. 
Southern  States,  Georgia  to  Texas;  four  specimens. 

3.  O.  nenuphar  Harris,  Ins.  Inj.  to  Veg.  1st  ed.  p.  67 :  3d  ed.  p.  75  : 
Bhynchcenus  neii.  Herbst,  Kafer,  vii,  29,  pi.  99.  f.  8  :  Rhynchcenus  argula 
Fabr.,  Syst.  El.  ii,  467;  Oliv.,  Ent.  No.  83,  192,  pi.  xxii,  f.  301  :  Rhynch- 
cerasi  Peck,  Mass.  Agr.  Repos.  1819,  307.  Conotrachelm  arg.  Fahrieus, 
Sch.  Cure.  iv.  425. 

Found  over  the  Atlantic  slope,  wherever  the  plum  is  cultivated  or  native. 
It  attacks  also  other  stone  fruit,  and  is  said  to  infest  apples,  pears  and 
quinces  (Harris  loc.  cit).  Further  observations  on  this  point  are  desirable,  as 
it  is  very  unlikely  that  such  different  plants  are  attacked  by  the  same  species. 
The  crests  of  the  elytra  are  more  abrupt,  and  the  posterior  ones  more  promi- 
nent  than  in  the  two  preceding;  the  second  elevation  of  the  fifth  interspace  in 
front  of  the  middle  is  conspicuously  smaller  than  that  of  the  third  inter- 
space, and  does  not  overlap  it  as  much  as  in  C.  juglandis.  The  elytral  band 
is  composed  of  yellow  and  white  hair;  there  is  a  conspicuous  white  line  at 
the  base  of  the  third  interspace.  The  thorax  is  longer  and  less  rounded  on 
the  sides,  than  in  the  two  preceding.  The  beak  is  stout,  curved,  and 
strongly  striate  and  punctured;  the  ventral  segments  coarsely  and  densely 
punctured;  fifth  with  two  setigerous  tubercles;  I  have  many  specimens 
before  me,  which  show  no  variation  worthy  of  note. 

An  excellent  memoir  on  this  pernicious  insect  by  the  late  B.  D.  Walsh 
will  be  found  in  the  Practical  Entomologist,  ii,  75;  and  some  additional  re- 
marks in  the  First  Annual  Report  of  the  State  Entomologist  of  Illinois,  1868, 
p.  64. 

4.  C.  retentus  Boh.,  Sch.  Cure,  iv,  442,  (retensus  err.  typ.);  Crypto- 
rhyncTius  retentus  Say,  Cure.  27;  ed.  Lee.  i,  295. 

Kansas;  one  specimen,  Mr.  Popince.  A  large  species  of  nearly  black 
color,  clothed  nearly  uniformly  with  short,  dark  gray  pubescence.  The 
beak  is  long,  slightly  curved,  strongly  striate  and  punctured.  The  protho- 
rax  is  densely  rugosely  punctured,  with  a  small  median  callus,  and  some 
indistinct  tubercles;  each  side  is  a  vague  curved  line  of  pubescence;  the 
sides  are  much  rounded,  and  strongly  constricted  in  front.  The  elytra  are 
striate  with  distant  quadrate  punctures,  the  alternate  interspaces  are  mod- 
erately carinated,  the  third  and  fifth  ai"e  each  interrupted  twice,  and  the 
seventh  broadly  interrupted  behind  the  humerus.  Ventral  segments 
sparsely  punctured;  fifth  more  densely  and  finely  punctured.  The  thighs 
are  distinctly  bidentate.     Length  7  mm.;  .28  inch. 

5.  O.  seniculus,  n.  sp. 

Beak  short,  stout,  curved,  strongly  punctured  and  striate,  as  in  C. 
nenuphar.  The  prothorax  is  wider  than  long,  constricted  in  front,  rounded 
on  the  sides,  strongly  rugosely  punctured,  and  very  distinctly  carinate 
from  the  tip  nearly  to  the  base;  each  side  is  a  straight,  oblique  line  of 


228  CURCULIONID^. 


[LeConte. 


fuscous  pubescence,  united  at  the  tip.  Elytra  -with  fuscous  or  grayish 
pubescence,  more  condensed  into  a  transverse  band  behind  the  middle,  al- 
ternate interspaces  carinate;  third  interrupted  in  two  places;  fifth  inter- 
rupted at  the  pubescent  band;  two  outer  carinse  rather  indistinct;  strije 
composed  of  large,  distant  quadrate  punctures.  Thighs  not  annulated,  with 
one  large,  acute  tooth,  and  one  small  denticle.  Length  4.6  mm. ;  .18  inch. 
Middle  and  Western  States;  Texas.  Of  the  same  form  and  size  as  C. 
nenuphar;  it  is  distinguished  from  the  next  species  chiefly  by  the  broader, 
more  strongly  carinate  prothorax;  by  the  two  lines  of  pubescence  being 
straight,  and  meeting  at  the  front  margin ;  and  by  the  first  ventral  segment 
being  less  punctured  than  the  others.     It  is  C.  seniculus\  Dej.  Cat. 

6.  O.  afflnis  Boh.,  Sch.  Cure,  iv,  429. 

Of  the  same  form  as  C.  elegans,  but  larger,  with  the  thorax  similarly 
sculptured,  more  deeply  constricted  in  front,  distinctly  carinate  from  the 
tip  to  the  middle,  with  a  transverse  discoidal  impression  about  the  middle; 
sides  broadly  rounded,  pubescence  brownish  yellow,  lines  broad,  curved,  sinu- 
ate, and  irregularly  branching  on  the  disc  and  sides.  Elytra  thinly  pubescent, 
with  a  short  basal  line  on  the  third  interspace,  and  a  broad  posterior  band 
brownish  yellow;  first  carina  broadly  interrupted  in  two  places;  second 
feebly  interrupted  near  the  base;  third  feebly  interrupted  in  front  of  the 
middle  in  one  specimen,  but  not  in  the  other;  striae  composed  of  large,  dis- 
tant, quadrate  punctures.  Beak  long,  slender,  strongly  striate  and  punctured. 
Thighs  wiUi  two  small,  acute  teeth,  annulated.  Ventral  segments  shining, 
sparsely  and  not  coarsely  punctured;  fifth  with  two  inconspicuous  tuber- 
cles.    Length  5-7  mm. ;  .2-. 27  inch. 

Western  States,  two  specimens,  of  which  one  was  sent  by  the  late  B.  D. 
Walsh.  The  more  sparsely  and  less  coarsely  punctured  ventral  segments  dis- 
tinguish this  easily  from  all  the  neighboring  species. 

7.  O.  elegans  Boh.,  Sch.  Cure,  iv  ,428;  Cryptorliynclnis  el.  Say,  Cure, 
18;  ed.  Lee.  i,  283. 

Of  the  same  form,  size  and  color,  as  C.  senictilus,  but  the  beak  is  longer 
and  less  curved;  the  prothorax  is  narrower,  feebly  carinate,  and  faintly  tu- 
berculate;  the  lines  of  pubescence  are  narrow,  curved,  and  do  not  meet  at 
the  front  margin.  The  carinfe  of  the  elytra  are  quite  similar,  except  that 
the  second  one  (that  of  the  fifth  interspace)  is  not  interrupted  behind  at  the 
transverse  band;  the  pubescence  is  more  yellow,  and  less  mixed  with  gray. 
The  teeth  of  the  thighs  are  small,  acute,  and  nearly  equal.  The  ventral 
segments  are  more  coarsely  punctured  than  in  C.  affinis,  and  the  first  is  not 
less  so  than  the  others. 

8.  C  aratus  Germar,  Sp.Nov.  {Cryptorliynclms),  283;  Boh.  Sch,  Cure, 
viii,  2,  26. 

I  refer,  with  some  hesitation,  to  this  species,  a  specimen  collected  in 
Texas  by  Belfrage,  which  resembles  C.  retensus  in  form,  color,  and  sculp- 
ture, but  is  much  smaller,  (4  mm.;  .16  inch),  and  has  the  carina  of  the 
fifth  interspace  not  interrupted  near  the  base.     It  diflfers  from  all  the  other 


LeOonte.] 


CRYPTORHYATCHINI.  229 


species  in  the  group  by  the  punctuation  of  the  ventral  segments;  first  and 
second  very  coarsely  but  not  densely  punctured;  third  and  fourth  strongly 
punctured;  fifth  finely  and  more  densely  punctured,  with  two  distinct  tu- 
bercles as  in  G.  nenuphar.  The  thighs  are  armed  with  two  small  acute 
denticles. 

9.  O.  nivosus,  n.  sp. 

Rather  stouter  than  C.  elegans,  brown  varied  with  black,  pubescence 
white  varied  with  fine  chocolate  brown.  Beak  short,  stout,  curved,  finely 
punctured  and  striate.  Prothorax  not  wider  than  long,  broadly  rounded  on 
the  sides,  moderately  constricted  near  the  tip;  very  coarsely  but  not  densely 
punctured,  not  carinate;  with  a  complex  white  reticulation  each  side  con- 
nected transversely  on  the  disc  in  front  of  the  middle;  a  short  posterior 
dorsal  line  white.  Elytra  witli  striae  composed  of  large,  distant  quadrate 
punctures,  interspaces  flat;  surface  in  great  part  white,  with  a  transverse, 
common  basal  spot,  (a  continuation  of  the  brown  thoracic  disc),  and  large, 
apical  space  brown;  there  is  also  a  transverse  band  at  the  middle,  which  is 
variegated  brown  and  white,  dilated  into  a  large,  sutural  brownish  blotch ; 
all  these  markings  are  connected  at  the  suture.  Body  beneath  densely 
brown-pubescent,  metasternum  and  side  pieces  white;  ventral  segments, 
1-4  each  with  a  white  spot  near  the  sides,  coarsely  punctured  ;  fifth 
with  two  basal  white  spots,  finely  and  densely  punctured.  Legs  annulated, 
thighs  with  one  tooth  and  a  small  denticle.     Length  5  mm. ;  .20  inch. 

Colorado,  abundant.  This  species  resembles  somewhat  in  appearance  the 
Texan  and  Mexican  C.  leucophmtus,  but  is  not  otherwise  allied  to  it. 

Division  I— B.  Sp.  10-18. 

The  species  of  this  division  differ  from  the  preceding,  chiefly  by  the  al- 
ternate interspaces  of  the  elytra  being  elevated,  and  not  interrupted  into 
short,  abrupt  crests;  the  inner  one  (of  the  third  interspace)  is  in  every  case 
entire.  In  other  respects  they  resemble  those  of  the  preceding  division  in 
several  important  characters;  the  prothorax  is  more  or  less  carinate,  not 
grooved;  the  surface  is  finely  pubescent,  with,  at  most,  lines  of  very  short 
bristles  on  the  elytra.  On  the  other  hand,  the  thighs  are  armed  with  a 
single,  usually  acute  tooth,  without  a  trace  of  the  second  tooth  or  denticle. 

a.  Humeri  dentiform;  ventral  segments  2-4  sparsely  punc- 

tured  ? 10.  cratsegi. 

b.  Humeri  not  dentiform;  ventral  segments  densely  and  coarsely  punc 
tured;  beak  long  and  slender;  antennae  inserted  about  the  middle;  pro 
thorax  punctured,  not  cribrate,  mesosternum  protuberant. 

Prothorax  strongly  constricted  in  front 2. 

"              "                "            "       "  gradually  nar- 
rowed; pubescence  yellow-gray,  speckled  with  white     11.  adspersus. 
2.  Femoral  tooth  large,  acute;  white  markings  conspic- 
uous, without  intermixed  bristles 12.  similis. 


230  CURCULIOXID^. 


[IjeConte. 


Femoral  tooth  obtuse  ;   pubescence   intermixed   with 

bristles 13.  naso. 

c.  Humeri  not  dentiform;  beak  shorter,  strongly  striate; 
antennae  inserted  about  one-third  from  the  tip. 

Ventral  segments  nearly  uniformly  punctured 2. 

"  "  sparsely,  fifth  finely  and  densely 
punctured;  prothorax  sparsely  cribrate,  elytra  with 
large,  white  markings 18.  plagiatus. 

2.  Mesosternum  flat,  declivous 3. 

"              prominent ;    prothorax    densely     and 
coarsely  punctured , 14.  posticatus. 

3.  Prothorax  plicate  towards  the  middle 4. 

' '  uniformly  cribrate 15.  geminatus. 

4.  Plicse  approximate;  pubescence  short 16.  infector. 

"     coarser,  and  more  reticulate,  pubescence  mixed 
with  longer  bristles  17.  cribricollis. 

10.  O.  crataegi  Walsh,  Proc.  Bost.  Soc.  Nat.  Hist,  ix,  1863,  311. 
New  York,  Georgia,  Illinois.     The  form  is  broader  and  more  squat  than 

in  any  other  of  our  species,  and  it  is  easily  distinguished  by  the  humeri 
being  obliquely  truncate,  with  the  outer  angle  dentiform;  this  appearance 
is  produced  by  a  short  carina  between  the  third  and  fourth  elevated  ridge 
of  the  elytra,  which  meets  the  fourth  ridge  at  an  acute  angle.  The  beak  is 
punctured  and  very  deeply  striate;  head  densely  punctured;  prothorax 
carinate,  elevated  at  the  middle,  broadly  transversely  impressed  in  front, 
densely  and  finely  cinereous  pubescent,  with  an  indistinct  pattern  of  paler 
pubescence  each  side,  meeting  in  front  of  the  middle.  The  elytra  are 
clothed  with  dirt-colored,  slightly  mottled,  fine  pubescence,  with  rows  of 
short,  whitish  set*;  the  third,  fifth,  seventh  and  ninth  interspaces  are 
strongly  carinate,  leaving  broad  furrows,  each  marked  with  two  rows  of 
quadrate  punctures.  The  body  beneath  is  thinly  clothed  with  yellowish 
pubescence,  sparsely  punctured  and  cribrate;  the  third  and  fourth  ventral 
segments  still  more  sparsely,  and  the  fifth  rather  densely  punctured.  Thighs 
armed  with  a  large,  not  very  acute  tooth.  The  middle  coxae  are  more 
widely  separated  than  in  the  other  species.     Length  5  mm. ;  .20  inch. 

The  beak  of  the  female  is  a  little  longer  and  less  deeply  striate  than  in  the 
male;  the  last  ventral  segment  in  both  sexes  is  foveateeach  side,  and  feebly 
impressed  at  the  middle  near  the  tip;  but  these  impressions  are  broader  in 
the  female. 

It  is  C.  humeralis  ||Dej.  Cat. 

11.  C.  adspersus,  n.  sp. 

Black,  robust,  clothed  with  very  short,  prostrate  scale-like  yellow  pubes- 
cence, with  lines  on  the  prothorax,  and  dots  on  the  elytra  of  white  pubes- 
cence. Beak  half  as  long  as  the  body,  slender,  slightly  curved,  punctured, 
not  striate.  Prothorax  as  long  as  wide,  gradually  narrowed  in  front  from 
the  base,  feebly  rounded  on  the  sides,  slightly  constricted  in  front:  slightly 


LeConte.] 


CRYPT()RriYNCHi:M.  231 


carinate;  punctures  large,  shallow,  indistinct  on  account  of  the  pubescence. 
Elytra  one-half  wider  at  base  than  the  prothorax,  humeri  prominent,  ab- 
ruptly rounded;  striae  composed  of  distant,  oblong  punctures;  interspaces 
finely  rugose,  flat;  third,  fifth,  seventh  and  ninth  finely  but  not  strongly 
carinate.  Body  beneath  coarsely  punctured;  mesosternum  protuberant;  last 
ventral  segment  with  three  very  faint  impressions.  Thighs  feebly  annu- 
lated,  with  a  broad,  obtuse  tooth.     Length  7  mm.;  .28  inch. 

Kansas,  Mr.  E.  A.  Popinoe,  one  specimen.  The  rows  of  punctures  of  the 
elytra,  from  thd  absence  of  pubescence,  appear  black;  the  white  dots  oc- 
cupy the  distance  between  them,  and  contrast  elegantly  with  the  yellow 
pubescence  of  the  main  surface.  The  white  lines  of  the  prothorax  are  nar- 
row, and  not  very  conspicuous;  they  converge  but  scarcely  meet  at  the 
front,  and  are  slightly  curved;  the  middle  carina  is  also  clothed  behind  with 
white  hair;  the  scutellum  and  a  small  spot  at  the  base  of  the  third  inter- 
space of  the  elytra  are  also  w^hite. 

12.  O.  similis  Boh.,  Sch.  Cure,  iv,  416. 

Southern  States.  A  large,  (6.2  mm. ;  .25  inch),  and  robust  species  clothed 
with  short,  ferruginous  pubescence,  and  handsomely  variegated  with 
white,  forming  a  complex  pattern  each  side  of  the  prothorax,  and  irregular 
posterior  bands  on  the  elytra.  The  beak  is  long  and  slender,  punctured, 
feebly  striate;  the  prothorax  broader  than  long,  not  narrowed  from  the 
base  to  the  middle,  then  rounded  and  much  narrowed  to  the  tip,  which  is 
strongly  constricted  at  the  sides;  the  disc  is  very  densely  punctured,  and 
finely  carinate  from  the  tip  to  the  middle.  The  punctures  of  the  elytral  striae 
are  very  large  and  quadrate,  and  the  alternate  interspaces  are  finely  cari- 
nate. Body  beneath  coarsely  and  rather  densely  punctured;  mesosternum 
protuberant ;  abdomen  with  three  rows  of  more  densely  pubescent  spots; 
first  and  second  ventral  segments  more  sparsely  at  the  sides;  fifth  ventral 
feebly  impressed  at  the  tip.     Thighs  armed  with  a  large,  acute  tooth. 

The  beak  in  the  (^  is  half  as  long  as  the  body,  opaque,  punctured,  finely 
striate  towards  the  base,  with  the  antennae  inserted  about  one-third  from 
the  tip;  in  the  female  the  beak  is  much  longer,  about  three-fourths  the 
length  of  the  body,  polished,  not  striate,  feebly  and  sparsely  punctured, 
with  the  antennae  inserted  behind  the  middle. 

13.  C.  naso,  n.  sp. 

Blackish  brown,  thinly  clothed  with  dirty  brown  pubescence.  Beak 
brown,  slender,  curved,  one-half  as  long  as  the  body,  shining,  indistinctly 
punctured,  finelj'  striate  towards  the  base.  Prothorax  wider  than  long. 
rounded  on  the  sides,  suddenly  narrowed  and  constricted  near  the  tip;  very 
densely,  rugosely  punctured,  carinate,  marked  with  two  small  discoidal 
spots  of  white  pubescence.  Elytra  one-third  wider  than  the  prothorax, 
more  sinuate  at  base  than  usual,  humeri  more  advanced  in  front,  and 
rounded;  striae  composed  of  small,  closely  placed  quadrate  punctures,  alter- 
nate interspaces  finely  carinate;  surface  more  densely  pubescent,  and  with 
rows  of  very  short  bristles,  indistinctly  banded  transversely.  Under  surface 


232  CUKCULIONID^. 


ijcConte. 


densely,  coarsely  punctured;  mesosternum  protuberant;  last  ventral  seg- 
ment with  a  round  impression  near  the  tip.  Thighs  annulated,  front  and 
middle  pair  not  toothed;  hind  pair  very  obtusely  toothed.  Lengtli  G  mm. ; 
.24  inch. 

Georgia  and  Texas.  I  perceive  no  sexual  differences  in  the  f»>;ir  speci- 
mens in  my  collection. 

14.  C.  posticatus  Boh.,  Sch.  Cure.  iv.  406. 

Southern  States;  the  references  to  Say  given  by  Boheman,  and  c()i)ied  in 
Gemminger  and  Harold,  should  be  hereafter  omitted,  as  was  done  in  the 
Melsheimer  Catalogue;  no  descripticm  was  ever  published  by  Say,  and  the 
citation  from  the  Journal  of  the  Academy  of  Natural  Sciences  of  IMiiladel- 
phia  is  erroneous.  This  species  resembles  in  appearance  C.  7uiso,  but  diftei's 
by  the  shorter  and  strongl}^  striate  beak,  the  different  position  of  the  antennae; 
by  the  coarser  punctuation  of  the  prothorax,  which  is  less  suddenly  narrowed 
and  less  constricted  in  ft'ont,  and  not  marked  with  two  discoidal  spots  of 
white  pubescence;  by  the  elytra  having  the  humeri,  and  sides  more  rounded; 
and  finally  by  all  the  thighs  being  strongly  though  not  acutely  toothed. 
The  under  surface  is  very  coareely  punctured,  and  the  last  ventral  segment 
has  a  broad,  rounded  impression.  The  mesosternum  is  protuberant  and  per- 
pendicular in  front,  as  in  the  species  of  Division  II,  and  in  the  three  prece- 
ding species.  In  some  specimens  the  elytral  interspaces  are  equally,  finely 
carinate;  in  others  the  alternate  cariniB  are  obsolete. 

15.  O.  g'eminatus  I  Dej .  Cat.  322:  puncticolUs  |  Walsh,  Proc.  Bost.  Soc. 
Nat.  Hist,  ix,  1863,  310. 

Maryland,  Illinois,  Kansas.  Related  to  the  next  three  species,  but  easily 
distinguished  by  the  prothorax  being  densely  and  uniformly  cribrate,  not 
at  all  plicate;  the  striae  of  the  elytra  are  composed  of  large,  quadrate  punc- 
tures, interspaces  broad  and  fiat;  the  third  and  fifth  are  slightly  elevated  be- 
hind the  middle;  the  seventh  is  subcarinate  near  the  humeri,  which  are 
somewhat  obliquely  rounded;  the  pubescence  is  yellowish,  very  thin  and 
fine,  mottled  with  grayish  bands,  with  a  white  spot  at  the  base  of  the 
third  interspace,  and  rows  of  very  short  bristles.  Body  beneath  coarsely 
punctured;  ventral  segments  3-5  more  finely,  but  not  very  densely  punc- 
tured; fifth  not  impressed  in  (J^;  with  a  shallow  but  well  defined  circular  im- 
pression at  the  tip  in  9  ;  in  the  only  specimen  of  the  latter  sex  in  my  col- 
lection, the  second  ventral  segment  is  also  transversely  elevated,  and  de- 
clivous behind;  this,  however,  may  be  a  deformity.  Thighs  armed  with  a 
large,  obtuse  tooth.     Length  4.2  mm.;  .17  inch. 

16.  C.  InfectorBoh.,  Sch.  Cure,  viii,  2.  49. 

One  specimen,  New  York.  Of  the  same  size,  form  and  color,  as  the 
preceding,  but  with  the  prothorax  distinctly  carinate,  and  more  coarsely 
sculptured;  the  cribrate  punctures  being  confluent,  so  as  to  leave  longitudi- 
nal ridges;  the  quadrate  punctures  of  the  elj^tral  striae  are  more  approxi- 
mate; the  interspaces  narrower  and  somewhat  convex,  and  the  pubescence 
more  yellow,  and  not  mixed  with  gray.  The  under  surface  is  uniformly 
and  coarsely  punctured;  last  ventral  segment  not  impressed. 


IieConte.] 


CRYPTORHYNCHINI.  233 


17.  C.  cribricollis  Cryptorhynchuscribr.  Say,  Cure.  28;  ed.  Lec.i,  296: 
Boh.,  Sch.  Cure,  iv,  446. 

New  York,  Louisiana,  Texas.  Also  of  tlie  same  form  and  size,  but  with 
the  sculpture  of  the  prothorax  much  coarser,  so  that  the  surface  appears 
reticulate;  the  pubescence  of  the  elytra  is  coarser,  and  the  bristles  longer 
and  more  numerous.  The  punctures  of  the  striiB  are  large,  quadrate  and 
approximate,  and  the  interspaces  slightly  convex.  Body  beneath  coarsely 
and  densely  punctured,  last  ventral  segment  not  impressed;  thighs  acutely 
toothed. 

18.  O.  plagiatus,  n.  sp. 

Black,  variegated  with  ferruginous  pubescence,  elytra  in  great  part,  and 
metasternum  densely  clothed  with  small,  white  scales.  Beak  as  long  as 
head  and  prothorax,  stout,  curved,  punctured  and  pubescent,  feebly  striate. 
Prothorax  as  long  as  wide,  rounded  on  the  sides,  narrowed,  but  scarcely 
constricted  at  tip,  coarsely  but  not  densely  cribrate,  not  carinate,  mottled 
with  ferruginous  and  white  spots.  Elytra  one-half  wider  than  prothorax  at 
base,  humeri  abruptly  rounded,  disc  convex,  striae  composed  of  large  punc- 
tures, interspaces  nearly  flat;  an  irregular  humeral  patch,  and  a  very  broad 
band  about  the  middle,  not  extending  to  the  suture,  and  the  sides  from  the 
base  to  behind  the  middle  are  white;  rest  of  the  surface  mottled,  ferruginous 
and  white.  Metasternum  white,  abdomen  with  lateral  spots  of  denser 
pubescence;  under  surface  very  sparsely^  cribrate-punctate,  punctures  very 
few  on  the  ventral  segments  1-4;  fifth  finely  and  densely  punctured,  with  a 
large,  shallow  circular  impression.  Legs  annulated;  thighs  armed  with  an 
obtuse  tooth,  and  a  feeble  trace  of  a  denticle;  mesosternum  not  protuberant. 
Length  4  mm. ;  .16  inch. 

Texas,  Belfrage;  one  specimen. 

Division  II.  Sp.  19-21.     . 

In  this  division  the  form  is  rather  squat,  the  elytra  at  base  being  nearly 
twice  as  wide  as  the  prothorax;  the  latter  is  coarsely  sculptured,  and  has 
two  crests  in  front  of  the  middle,  between  which  is  a  wide  furrow.  The 
beak  is  curved,  a  little  longer  than  the  head  and  prothorax,  strongly  punc- 
tured and  striate.  The  alternate  interspaces  of  the  elytra  are  strongly  cari- 
nated,  and  sometimes  abruptly  interrupted.  The  under  surface  is  very 
coarsely  punctured;  the  mesosternum  horizontal  and  protuberant  in  front; 
the  legs  are  annulated;  the  thighs  armed  with  a  large  tooth  and  a  small 
denticle. 
Three  species  are  known  to  me,  which  may  be  tabulated  as  follows  : 

Elytral  costse  entire,  or  nearly  so 2. 

"  "     abruptly  interrupted 19.  tuberosus. 

2.  Elytra  mottled,  strongly  costate 20.  anaglypticus. 

"    in  great  part  white,  feebly  costate 21.  leucophsBatus. 

19.  O.  tuberosus,  n.  sp. 

At  first  sight  this  species  resembles  closely  C.  nenuphar,  but  it  is  smaller 
and  stouter,  and  the  sculpture  of  the  prothorax  is  very  different.     Tho 

PROC.  AMER.  PHILOS.  SOC.  XY.  96.  3D 


234:  cuRCULioNrD^. 


[LeConte. 


beak  is  more  strongly  striate;  the  prothorax  is  loager  than  wide,  slightly 
rounded  on  the  sides;  densely,  rugosely  punctured,  opaque,  with  two  acute 
crests  running  from  the  tip  to  the  middle;  each  side  are  two  narrow,  white 
lines,  crossed  by  a  curved  one  in  front  of  the  middle.  The  elytral  striis  are 
composed  of  large,  quadrate  punctures,  and  the  costae  are  interrupted  almost 
exactly  as  in  C.  nenuphar;  the  pubescence  is  very  fine,  short  and  fulvous, 
condensed  into  a  narrow,  transverse  band  just  behind  the  middle.  Antennae, 
tibiaj  and  tarsi  ferruginous.     Length  3  mm.;  .12  inch. 

South  Carolina;  Dr.  Zimmermann;  Illinois,  Dr.  Horn.  There  are  scarcely 
perceptible  rows  of  short  bristles  on  the  elytra. 

20.  O.  anaglypticus  Fahrajus,  Sch.  Cure,  iv,  418  ;  Cryptorhynchus 
anagl.  Say,  Cure.  18;  ed.  Lee.  282. 

Massachusetts  to  Kansas;  Georgia,  Texas;  abundant.  I  have  one  very 
small  specimen  in  which  the  color  is  concealed  by  a  uniform  dirt-colored 
crust;  it  is  G.  ineditus\Dei.  Cat. 

21.  C  leucophseatus  Fahrajus,  Sch.  Cure,  iv,  417. 

Described  first  from  Mexico,  but  not  rare  in  Texas.  Allied  to  C. 
anaglypticus,  but  larger,  (nearly  5  mm.;  .20  inch),  with  the  sculpture  of 
the  prothorax  coarser,  the  crests  more  evident,  and  a  short  median  carina; 
the  elytral  costse  are  less  elevated,  and  the  surface  is  in  great  part  covered 
with  white  pubescence  to  within  one- fourth  of  the  tip,  which  is  dark  brown 
and  mottled;  the  base  for  a  short  distance  is  clothed  with  fulvous  pubescence. 

Division  III.   Sp.  22. 

This  division  contains  but  a  single  species  of  ordinary  form,  with  the 
elytra  covered  in  great  part  with  very  fine,  short  pubescence,  not  mixed 
with  longer  hairs,  or  with  bristles.  The  beak  is  rather  stout  and  slightly 
curved;  the  front  coxae  are  contiguous,  the  thighs  obtusely  toothed,  and 
sinuate  beneath  near  the  knee;  the  claws  are  cleft  at  tip,  and  less  approxi- 
mate than  in  the  next  division.  The  antennae  are  inserted  about  one-fifth 
from  the  end  of  the  beak.  The  mesosternum  is  not  very  wide;  the  hind 
part  is  obliquely  declivous;  the  front  part  perpendicular. 

22.  C.  fissunguis,  n.  sp. 

Dark  brown,  nearly  black.  Beak  stout,  as  long  as  the  head  and  pro- 
thorax, punctured,  shining  towards  the  tip,  then  carinate  and  coarsely 
striate.  Prothorax  coarsely  and  deeply  cribrate,  towards  the  tip  with  longi- 
tudinal ridges,  the  middle  one  of  which  is  more  distinct;  scarcely  longer 
than  wide,  slightly  rounded  on  the  sides,  then  more  strongly  rounded  and 
narrowed  to  the  apex,  which  is  feebly  constricted  at  the  sides.  Elytra  one- 
half  wider  than  the  prothorax,  base  truncate,  humeri  prominent,  nearly  rec- 
tangular; sides  parallel,  then  obliquely  narrowed  to  the  tip;  strite  composed 
of  large,  distant  punctures;  surface  densely  covered  with  short,  yellow 
pubescence,  which  is  darker  on  the  posterior  fourth;  a  denuded  transverse 
band  about  the  middle.  Beneath  coarsely  punctured;  thighs  annulated 
with  yellow  pubescence.     Length  5-5.5  mm.;  .20-. 22  inch. 

Louisiana,  three  specimens. 


LeConte.] 


CRYPTORHYNCHINI.  235 


Division  IV.  Sp.  23-34. 

This  division  contains  small  species  of  less  robust  form,  easily  known 
by  the  fine  pubescence  being  mixed  with  long,  stout,  erect  bristles.  The 
beak  is  longer  than  the  head  and  prothorax,  not  stout,  very  sliglitly  curved, 
punctate  and  striate;  antennae  inserted  one-fourth  from  the  tip;  mesos- 
ternum  rather  wide,  perpendicularly  declivous  in  front.  Under  surface 
coarsely,  uniformly  punctured;  thighs  armed  with  one  tooth,  claws  cleft, 
the  tooth  being  as  long  as  tlie  outer  part.  Elytra  not  costate.  Front  coxae 
contiguous  as  usual. 

Prothorax  coarsely  cribrate 23.  erinaceus. 

"         punctured 24.  hispidus. 

23.  O.  erinaceus,  n.  sp. 

Blackish,  densely  clothed  with  depressed  mud-colored,  scaly  pubescence, 
with  erect  bristles  intermixed,  which  are  short  on  the  prothorax,  and  long 
on  the  elj'tra.  Legs,  antennae  and  beak  brown;  the  last  named  slender, 
slightly  curved,  sparsely  punctured,  feebly  striate  towards  the  base.  Pro- 
thorax wider  than  long,  slightly  rounded  on  the  sides,  moderately  nar- 
rowed in  front,  and  feebly  constricted;  tolerably  densely  cribrate.  Elytra 
one-third  wider  than  prothorax,  humeri  prominent,  abruptly  rounded,  striae 
composed  of  large,  shallow  punctures,  interspaces  slightly  convex.  Body 
beneath  shining,  sparsely  pubescent,  coarsely  not  densely  cribrate;  last  ven- 
tral segment  not  impressed.  Thighs  armed  with  an  obtuse  tooth.  Length 
3  mm.;  .13  inch. 

Southern  States.  Judging  from  MS.  drawings  made  l)y  my  father,  this 
is  Calosternus  erinacem\T)e].  Cat.  318. 

24.  O.  hispidus,  n.  sp. 

Of  the  same  form  as  tlie  preceding  but  smaller,  brown  covered  with  cin- 
ereous, scaly  pubescence;  prothorax  not  wider  than  long,  coarsely  punc- 
tured, with  the  bristles  not  shorter  than  those  of  the  elytra;  elytra  about 
one-third  wider  than  the  prothorax,  rather  moi'e  elongate  than  in  G.  erina- 
ceus, striate  and  setose  in  a  similar  manner.  Body  beneath  similarly  punc- 
tured, beak,  antennae  and  legs  paler  brown,  femoral  tooth  smaller  and  more 
acute.     Length  2.5  mm. ;  .10  inch. 

One  specimen,  Georgia. 

MICRALCINUS*  n.  g. 

A  species  from  Florida  which  has  an"  almost  deceptive  resemblance  to 
Tyloderma  variegatum,  constitutes  this  genus.  It  is  closely  allied  to  Cono- 
trachelus,  and  has  the  antennal  grooves  confluent  behind  in  a  similar  man- 
ner. The  front  coxae  are  also  nearly  in  contact,  but  the  form  of  body  is 
quite  difierent,  the  elytra  are  not  suddenly  wider  than  the  prothorax,  regu- 
larly oval,  and  emarginateatbase  ;  the  beak  is  shorter,  scarcely  longer  than 
the  prothorax,  and  the  claws  are  not  toothed.     The  postocular  lobes  are  as 

*This  genus  does  not  appear  in  the  table  of  genera,  as  it  was  overlooked 
when  the  form  was  closed. 


236  CUKCULIONID^.  [LeConte. 

large  as  in  ConotracTielus,  and  the  mesoslernum  is  protuberant  and  perpen- 
dicular in  front. 

1.  M.  cribratus,  n.  sp. 

Black-brown,  shining,  sparsely  pubescent,  mottled  on  the  elytra  with 
small  spots  of  fine  gray  hair,  and  towards  the  tip  with  patches  of  a  brown 
color.  Beak  rather  stout,  scarcely  as  long  as  the  prothorax,  deeply  grooved 
and  punctured,  head  punctured.  Prothorax  as  long  as  wide,  rounded  on 
the  sides,  narrowed  in  front,  and  feebly  constricted:  cribrate  with  large 
deep  punctures  ;  with  a  small  smooth  callus  at  the  middle.  Elytra  oval, 
emarginate  at  base,  about  one  third  wider  than  the  prothorax;  humeri 
rounded;  sides  slightly  rounded,  more  obliquely  towards  the  tip  ;  striae 
composed  of  large  deep  punctures,  becoming  smaller  towards  the  tip,  where 
the  strife  are  somewhat  impressed.  Beneath  strongly,  not  densely  punc- 
tured. Antennse  brown,  second  joint  of  funicle  nearly  as  long  as  the  first; 
thighs  slender,  sinuate  beneath,  not  toothed;  tibiae  nearly  straight,  armed 
with  a  terminal  hook;  claws  small,  divergent,  simple.  Length  3.2  mm.; 
.13  inch. 

Capron,  Florida;  Messrs.  Hubbard  &  Schwarz. 

RHYSSEMATUS  Sch. 

Concerning  this  genus  I  have  little  to  add  to  the  excellent  synoptic  table 
and  remarks  published  by  Dr.  Horn,  (Proc.  Am.  Phil.  Soc.  1873,  463) 
except  that  the  diftereuces  between  it  and  Chalcodermus  as  stated  by  La- 
cordaire  are  somewhat  illusive;  the  corbels  of  the  hind  tibiae  seem  in  some 
specimens  of  R.  Uneaticollis  to  be  quite  distinct.  On  the  other  hand,  there 
is  a  great  difference  in  the  form  of  the  claws,  which  in  Bhyssematus  are 
cleft  as  in  Anthonomus,  but  in  Chalcodermus  are  approximate  and  connate 
at  base,  almost  as  in  Smicronyx,  &c.  There  is  also  an  important  difference 
in  the  two  outer  striae  of  the  elytra,  which  are  separated  by  a  costa  in  the 
first,  just  as  in  Conotrachelus,  but  in  the  latter  the  outer  striae  consists  of 
only  a  few  large  punctures  extending  one-third  the  length  from  the  base, 
and  the  interspace  is  flat. 

In  view  of  the  importance  of  these  characters  it  becomes  necessary  to 
place  Chalcodermus  prtiinosus  Boh.,  (Sch.  Cure,  viii,  2nd,  13)  in  this  genus; 
from  the  other  species  it  is  easily  distinguished  by  the  less  rugose  punctua- 
tion of  the  prothorax. 

CHALCODERMUS  Sch. 

The  remarks  of  Dr.  Horn  upon  the  three  species  of  this  genus  which  re- 
main after  removing  C.  pruinosus  leave  nothing  to  be  added. 

ZAGLYPTUS  n.  g. 

The  two  very  small  species  which  constitute  this  genus  resemble  in  form 
and  coarseness  of  sculpture  Bhyssematus,  but  differ  essentially  by  the  an- 
tennae and  tarsi.  The  prothorax  is  also  more  strongly  sinuate,  and  much 
more  deeply  margined  at  the  base.    The  funiculus  is  rather  short,  with  the 


LeConte,] 


CRYPTORHYKCHINI.  237 


first  joint  stouter  and  elongated,  the  others  are  short,  closely  Connected,  so  as 
to  appear  indistinct,  and  gradually  pass  into  the  club,  which  is  elongate 
oval,  in  one  species,  and  elongate  ovate  and  obtuse  in  the  second;  the 
number  of  short  joints  under  a  high  power  is  six,  and  they  do  not  differ  in 
length,  but  gradually  increase  in  thickness.  The  beak  is  as  long  as  the  head 
and  prothorax,  slightly  curved,  stouter  in  one  species  (sex  ?)  than  in  the 
other.  Prothorax  gradually  narrowed  from  the  base  forwards,  strongly 
constricted  and  tubular  at  tip,  without  postocular  lobes,  not  emarginate  be- 
neath ;  the  base  is  strongly  sinuate  and  margined,  scutellar  lobe  acute.  Elytra 
ample,  convex,  a  little  wider  than  the  prothorax  at  base,  gradually  nar- 
rowed behind  from  the  humeri  which  are  rather  prominent.  Pectoral 
groove  shallow,  antecoxal  ridges  very  fine;  prosternum  prominent  and  fo- 
veate  behind  the  front  coxae  which  are  moderately  distant;  mesostemum 
short,  declivous,  not  prominent,  middle  and  hind  coxae  widely  separated. 
Ventral  segments,  first  and  second  very  large,  connate,  with  the  suture  ob- 
literated at  the  middle;  third  and  fourth  short,  sutures  deep,  nearly  straight ; 
fifth  as  long  as  third  and  fourth  united,  rounded  behind,  flat.  Legs  rather 
short,  slender,  thighs  unarmed,  tibiae  slightly  mucronate  at  tip,  tarsi  with 
the  third  joint  emarginate,  not  broader  than  the  preceding;  last  joint  as 
long  as  the  others  united;  claws  slender,  divergent,  not  toothed. 

1.  Z.  sulcatus,  n.  sp. 

Dark  reddish  brown;  head  and  tubular  constriction  of  prothorax  smooth, 
beak  deeply  sulcate  each  side;  prothorax  very  coarsely  cribrate,  sparsely 
pilose  with  long,  erect  whitish  hairs.  Elytra  deeply  sulcate,  grooves  punc- 
tured, interspaces  narrow,  convex,  each  with  a  row  of  distant,  small  punc- 
tures, from  which  proceed  long,  erect  hairs;  disc  from  base  to  behind  the 
middle  red.  Trunk  and  first  ventral  segment  with  very  large,  sparse  punc- 
tures.    Length  1.8  mm. ;  .07  inch. 

One  specimen  from  Mobile,  Alabama,  given  me  by  the  late  Col.  Mot- 
schulsky,  under  the  MS.  naiue  Nanophyes  rubidus. 

2.  Z.  striatus,  n.  sp. 

Of  the  same  form  and  sculpture  as  the  preceding,  somewhat  lighter  in 
color.  Beak  more  slender  (a  sexual  character?),  less  deeply  sulcate,  with 
two  or  three  long  hairs  each  side  near  the  base.  Prothorax  with  more  nu- 
merous erect  hairs.  Elytra  with  coarsely  punctured  shallow  stri;T?,  inter- 
spaces wide,  flat,  each  with  a  series  of  long,  pale,  erect  hairs  proceeding 
from  scarcely  perceptible  punctures.     Length  1.8  mm.;  .07  inch. 

One  specimen,  Pennsylvania;  Mr.  S.  ^.  Rathvon.  The  essential  differ- 
ence between  this  and  the  preceding  is  in  the  elytral  sculpture.  The  other 
characters  are  dependent  on  sex,  and  on  better  preservation  of  the  speci- 
men. 

MICROHYUS  n.  g. 

As  the  preceding  genus  resembles  Rhyssematus  in  miniature,  so  does  this 
resemble  the  smaller,  setose  Conotracheli,  but  differs  cliiefly  in  tlie  funicu- 
lus of  the  antennae  and  the  simple,  divergent  claws.  The  beak  is  shorter 
than  the  prothorax,  nearly  straight,  with  the  antennae  inserted  about  one- 


238  CUKCUL  ION-ID^.  [LeConte. 

third  from  the  tip.  Scape  scarcely  reaching  the  eyes  which  are  small  and 
lateral;  funiculus  rather  short;  first  joint  larger  and  stouter,  six  remaining 
joints  short,  slightly  increasing  in  thickness,  closely  united;  club  large, 
oval-pointed,  annulated.  Prothorax  gradually  narrowed  from  the  base, 
broadly  constricted  near  the  tip,  feebly  rounded  on  the  sides;  postocular 
lobes  wanting.  Elytra  ovate,  convex,  broader  and  sub-truncate  at  base, 
humeri  prominent,  gradually  narrowed  behind,  and  strongly  declivous. 
Prosternum  deeply  emarginate  in  front,  pectoral  groove  deep,  antecoxal 
ridges  strongly  developed;  front  coxae  moderately  distant.  Mesosternum 
declivous;  middle  and  hind  coxag  widely  separated;  metasteruum  short. 
Ventral  segments  with  straight,  distinct  sutures;  first  a  little  longer  than 
the  second;  third  and  fourth  shorter;  fifth  flat,  rounded  behind,  as  long  as 
the  second.  Legs  slender,  rather  short,  thighs  not  toothed,  tibite  slightly 
mucronate  at  tip;  tarsi  with  the  third  joint  broad,  bilobed;  last  joint  as  long 
as  the  others  united;  claws  slender,  divergent,  not  toothed. 

1.  M.  setiger,  n.  sp. 

Black,  covered  with  a  dirty  crust,  and  clothed  with  stout  bristles,  erect 
on  the  prothorax,  reclinate  on  the  elytra.  Head  and  beak  rather  finely  punc- 
tured. Prothorax  strongly  punctured.  Elytra  with  deep  strije,  interspaces 
somewhat  convex;  the  alternate  ones  a  little  wider.  Beneath  coarsely  and 
densely  punctured.     Length  2.1  mm.;  .085  inch. 

Two  specimens,  Georgia. 

Group  IL     Acampti. 

As  Camptorhmus  differs  from  the  CryiUorliyncM  by  the  pectoral  groove 
being  confined  to  the  prosternum,  though  distinctly  limited  behind,  so  is 
the  singular  insect  which  constitutes  this  group  similarly  separated  from 
the  Ithi/pori,  by  the  shorter  beak  resting  upon  the  front  coxse.  The  body 
is  elongate,  as  in  GamptorJiinus,  and  the  tibiae  are  stout,  sinuate  on  the 
inner  side,  and  strongly  hooked  at  the  tip.  The  other  characters  are  pecu- 
liar, the  tarsi  are  not  dilated  nor  spongy  beneath,  and  the  club  of  the  an- 
tennae is  pubescent  and  sensitive  only  near  the  tip. 

These  characters  indicate  relationships  in  various  directions,  such  as  the 
ByrsopidiM  and  Cossonidce,  but  the  insect  preserves  unchanged  all  the  es- 
sential characters  of  the  Cryptorhynch  type  of  Curculionidce. 

ACAMPTUS  n.  g. 

A  very  singular  species  of  elongate  form,  clothed  with  dirt-colored  hair, 
and  short,  erect  bristles  represents  this  genus . 

The  beak  is  short  and  stout,  as  long  as  the  head,  and  expanding  grad- 
ually into  it,  so  that  no  distinct  separation  appears;  the  antennal  grooves 
begin  about  one-third  from  the  end,  and  descend  obliquely  to  the  eyes, 
Avhich  are  small,  lateral,  and  not  prominent.  Antennte  with  the  scape  ex- 
tending to  the  front  margin  of  the  eyes,  clavate;  funiculus  not  longer  than 
the  scape;  first  joint  stouter  and  about  as  long  as  its  width;  remaining 
joints  five,  short,  gradually  increasing  in  width,  closely  connected,  passing 


LeConte.] 


CRYPTOEHTNCHINI.  239 


gradually  into  the  club  which  is  elongate,  obtuse  at  tip,  corneous  at  base, 
pubescent  on  the  outer  half.  Prothorax  longer  than  wide,  gradually  nar- 
rowed in  front;  broadly,  but  not  deeply  constricted  in  front,  slightly  pro- 
duced at  the  middle,  postocular  lobes  not  well  marked,  base  feebly  sinuate. 
Elytra  a  little  wider  than  the  prothorax,  humeri  rectangular,  slightly 
rounded,  sides  parallel,  rounded  at  tip.  Prosternum  deeply  and  broadly 
emargiuate  in  front,  pectoral  groove  broad  and  deep,  antecoxal  ridges  very 
prominent,  front  coxae  very  prominent,  narrowly  separated,  supporting  the 
end  of  the  beak;  prosternum  behind  the  coxae  not  prominent;  mesosternum 
small,  middle  coxae  narrowly  separated;  hind  coxae  distant,  metasternum 
with  the  anterior  process  nearly  acute;  hind  margin  broadly  emarginate; 
ventral  sutures  straight;  third  and  fourth  segments  short,  the  others  longer. 
Legs  short,  stout,  thighs  not  toothed;  tibiae  sinuate  on  the  inner  side> 
strongly  armed  at  tip;  tarsi  as  long  as  the  tibias,  not  dilated  nor  spongy  be- 
neath; last  joint  as  long  as  the  two  preceding;  claws  slender,  divergent,  not 
toothed. 

1.  A.  rigidus,  n.  sp. 

Elongate,  black,  covered  thickly  with  dirty  brown  hair,  and  short,  erect, 
stout  bristles,  which  conceal  the  sculpture.  Prothorax  longer  than  wide, 
slightly  rounded  on  the  sides,  broadly  constricted  near  the  apex,  which  is 
rounded;  base  feebly  bisinuate;  dorsal  channel  faint.  Elytra  about  one- 
fourth  wider  than  the  prothorax,  cylindrical,  rounded  behind ;  striae  composed 
of  quadrate  punctures;  first,  third,  fifth  and  seventh  interspaces  wider,  more 
prominent,  and  furnished  with  conspicuous  rows  of  bristles;  eighth  and 
ninth  with  a  few  bristles;  second,  fourth  and  sixth  very  narrow,  not  pro- 
minent. Beneath,  very  coarsely  punctured,  covered  with  a  dirt-colored 
crust,  with  scattered,  short,  coarse  hairs.     Length  3-4  mm.;  .12-.16  inch. 

South  Carolina  to  Texas,  not  uncommon.  Judging  from  a  MS.  drawing 
by  my  ftxther,  it  is  Botrobatys  troglodytes \T)Q.i.  Cat. 

Group  III.      €ryptorliyncIii. 

In  this  group  the  pectoral  groove  is  distinctly  limited  behind.  The  other 
characters  are  variable,  though  the  front  coxae  are  never  contiguous  as  in 
some  Ithypori;  a  slight  appearance  of  an  epipleural  fold  exists  in  many 
species.  The  claws  are  toothed  in  Phyrdenus,  but  simple,  and  generally 
small  in  the  other  genera. 

The  genera  in  our  fauna  are  not  numei'ovis,  but  present  several  categories 
indicating  sub-gi'oups,  which  it  is  unnecessary  to  define  at  present,  as  their 
number  would  be  increased  by  a  careful  study  of  exotic  forms.  3ficromastus 
might  be  placed  with  equal  propriety  in  Ithypori,  near  Arthrostenus,  but  for 
the  present  I  prefer  associating  it  with  Acalles:  the  only  specimen  in  my 
collection  is  much  broken. 

Metathoracic  epimera  distinct 6. 

"  "        indistinct 2. 

2.  Metasternum  as  long  as  first  ventral  segment 5. 

Metasternum  veiy  short,  humeri  rounded 3. 


240 


CURCULION^IDJE. 


[LeConte. 


3.  Club  of  antennae  annulated 4. 

"    of  antennae  solid EURHOPTUS. 

4.  Claws  very  small,  approximate ACALLES. 

larger,  divergent MIOROMASTUS. 

5.  "      slender,  divergent PSEUDOMUS. 

6.  Tibiae  strongly  compressed 9. 

"      slender,  more  or  less  sinuate 7. 

7.  Mesosternum  deeply  emarginate 8. 

feebly            "         TYLODERMA. 

8.  Claws  appendiculate,  divergent PHYRDENUS. 

"      simple,  divergent CRYPTORHYNCHUS. 

9.  Tibiae  not  serrate lO. 

"     more  or  less  serrate ZASOELIS. 

10.  First  ventral  suture  deep CCELOSTERNUS. 

"        "  "      sinuate,    faint  at   the 

middle BAROPSIS. 

ACALLES  Sch. 


The  very  short  metasternum,  with  indistinct  episterna,  the  oval  elytra 
with  rounded  sides,  and  the  small  tarsal  claws  will  enable  the  species  of 
this  genus  to  be  easily  recognized.  The  mesosternum  is  usually  deeply 
excavated  for  about  one-half  its  length,  so  that  the  pectoral  groove  ends 
about  the  anterior  limit  of  the  middle  coxae;  but  this  is  not  the  case  with^. 
michalis  and  pectoralis;  the  hind  part  of  the  mesosternum  is  protuberant, 
so  as  to  make  an  obtuse  angle  with  the  metasternum.  The  distance  from 
the  middle  to  the  hind  coxte  is  not  greater  than  from  the  middle  to  the  front 
pair;  the  mesosternum  at  the  side  appears  longer  than  the  metasternum,  a 
very  unusual  character  in  Coleoptera.  The  last  two  species  described  below 
are  anomalous,  and  when  studied  in  connection  with  the  foreign  species, 
will  probably  be  considered  as  constituting  new  genera;  in  A.  nuchalis 
the  metathoracic  side  pieces  are  as  distinct  as  in  Cryptorhynchus;  in  A. 
pectoralis,  the  mesosternum  is  scarcely  more  emarginate  than  in  Tyloderma. 

Mesosternum  deeply  emarginate 2. 

"          broadly         "          12. 

2.  Scales  thick,  erect,  without  intermixed  bristles 3. 

"      appressed,  with  bristles  intermixed 7. 

3.  Elytra  with  conspicuous  pale  markings 4. 

' '      not  conspicuously  marked 5. 

4.  Black,  with  large,  posthumeral  spot,  and  band  be- 

hind the  middle  of  elytra  white 1.  nobilis. 

Black,  with  sub-basal  baud  and  a  few  spots  white. .  2.  basalis. 

5.  Elytra  not  tesselated •  6. 

"      with  brown  scales,  tesselated  with  paler 3.  porosus. 

6.  Interspaces  of  elytra  moderately  wide 4.  turbidus. 

"  "       very  narrow 5.  clathratus. 


LeOonte.j  CRYPTOimVXCHlXI.  241 

7.  Prothorax  carinate,  l)rislles  short 8. 

' '             not  carinate 9. 

y.  Basal  angles  of  elytra  not  prominent 6.  carinatus. 

"        "               "      well  defined 7.  granosus. 

9.  Bristles  stout,  clavate 10. 

soft,  slender 8.  sordidus. 

lU.  Elytra  with  basal  and  broad  posterior  band  of  yellow 

scales 11- 

Elytra  with  small  white  spots  arranged  in  two  inter- 
rupted bands 9.  clavatus. 

11.  Elytra  rounded  on  the  sides 10.  crassulus. 

nearly  parallel,  form  elongate 11.  longulus. 

12.  Prothorax  not  channeled,  occiput  clothed  with  white 

scales 12.  nuchalis. 

Prothorax  channeled,  head  uniform  brown 13.  pectoralis. 

1.  A.  nobilis,  n.  sp. 

Black,  coarsely  punctured,  with  thick,  erect  brown  scales,  which  when 
viewed  in  certain  directions  seem  like  short,  obtuse  bristles.  Beak  shining, 
naked,  punctured;  head  densely  clothed  with  small  pale  scales,  frontal 
fovea  large.  Prothorax  as  long  as  wide,  much  rounded  on  the  sides,  nar- 
rowed before  and  behind;  punctures  very  deep,  disc  convex  with  a  faint 
trace  of  a  median  carina.  Elytra  with  rows  of  deep,  large,  but  rather  dis- 
tant oval  punctures;  interspaces  very  convex,  except  the  two  outer  ones; 
there  is  a  single  marginal  point  behind  the  humeral  angle;  the  white  mark- 
ings are  conspicuous,  of  snow-white  scales,  as  follows:  a  spot  on  the  fifth, 
sixth  and  seventh  interspaces  near  the  base,  connected  with  two  small  spots 
on  the  fourth,  forming  a  sub-humeral  blotch;  a  band  behind  the  middle, 
composed  of  spots  on  the  first  to  the  fourth  interspace;  and  many  small 
spots  irregularly  disposed,  formed  of  three  or  four  white  scales.  Legs  annu- 
lated  with  brown  and  pale  scales.  Ventral  segnients  with  a  row  of  lateral 
spots  of  pale  scales.     Length  7.8  mm. ;  .31  inch. 

Texas;  Messrs.  Boll  and  Belfrage;  three  specimens.  Mr.  Ulke  has  a 
species  from  Florida  similar  to  this,  but  stouter,  with  the  sides  of  the  elytra 
angulated  near  the  base. 

2.  A.  basalis,  n.  sp. 

Similar  to  the  preceding,  but  smaller  and  less  robust.  Beak  more  stronglj^ 
punctured,  carinate;  head  covered  with  pale  scales,  extending  half  way 
upon  the  beak,  front  channeled.  Protliorax  with  small,  scattered  spots  of 
pale  scales.  Elytra  with  the  suture,  a  transverse  band  at  the  base,  enclos- 
ing a  black  humeral  spot,  and  some  scattered  small  spots  of  pale  Ijrown 
scales;  strife  composed  of  more  approximate  quadrate  punctures,  inter- 
spaces except  the  two  outer  ones  convex.  Body  beneath  more  coarsely  and 
deeply  punctured  than  in  A.  nobilis,  and  thinly  clothed  with  pale  scales, 
rather  more  dense  at  the  sides  of  the  ventral  segments.  Legs  annulated. 
Length  5.5  mm. ;  .22  inch. 

One  specimen  collected  Ijj'  me  in  Colorado. 
PnOC.  AMBK.  PHILOS.  SOC.  XV.  96.  2e 


242  CUKCULIONID^.  [J^econte. 

:;.  A.  porosus,  n.  sp. 

Similar  in  form  to  A.  basalts,  but  larger;  the  beak  is  longer,  and  dis- 
tinctly carinate;  head  covered  with  pale  scales  extending  upon  the  beak;, 
front  channeled.  Prothorax  very  deeply  and  densely  punctured,  finely  cari- 
nate,  irregularly  clothed  with  brown  scales.  Elytra  with  rows  of  approxi- 
mate large  quadrate  punctures,  the  intervals  between  which  are  nearly 
as  high  as  the  interspaces;  second,  fourth  and  sixth  interspaces  wider  and 
more  convex,  tesselated  with  spots  of  pale  and  dark  brown ;  rest  of  the  sur- 
face with  scattered  pale  scales.  Beneath  coarsely  and  deeply  punctured, 
thinly  clothed  with  pale  scales;  legs  annulated.     Length  8  mm.;  .32  inch. 

Two  specimens  from  Colorado;  one  collected  l)y  myself,  the  other  in  the 
cabinet  of  Dr.  Horn. 

4.  A.  turbidus,  n.  sp. 

Rather  narrow,  black,  densely  clothed  with  thick  dirt  colored  scales, 
Beak  naked,  punctured,  subcarinate;  head  densely  clothed  with  small  scales, 
front  channeled.  Prothorax  deeply  and  densely  punctured  as  usual,  not 
carinate,  longer  than  wide,  narrower  in  front  than  at  base;  sides  broadly 
rounded.  Elytra  with  rows  of  large,  approximate,  quadrate  punctures,  in- 
terspaces wide,  somewhat  convex;  markings  indistinct,  but  when  present, 
consisting  of  an  irregular  basal  fascia,  and  an  undulated  one  behind  the 
middle,  very  much  as  in  A.  basalis.  Under  surfece  deeply  and  coarsely 
punctured,  thinly  clothed  with  dirt  colored  scales.  Length  7  mm.;  .28 inch. 

Arizona,  Dr.  Horn;  several  specimens.  Related  to  A.  basalis,  but  nar- 
rower, and  with  differently  colored  scales. 

5.  A.  clathratus,  n.  sp. 

Narrow,  black,  clothed  with  dirt  colored  scales.  Beak  rather  stouter, 
punctured  and  subcarinate,  head  covered  with  small  scales  extending  upon 
the  beak,  front  channeled.  Prothorax  as  in  the  preceding.  Elytra  witli 
rows  of  large,  approximate,  quadrate  punctures,  which  almost  overlap,  so 
that  the  interspaces  are  very  narrow  and  indistinct.  Body  beneath  coarsely 
and  deeply  punctured,  thinly  clothed  with  dirt  colored  scales.  Length  4.7 
mm.;  .19  inch. 

One  specimen  found  by  me  in  Colorado.  Differs  from  the  preceding  by 
the  larger  punctures  of  the  elytra,  and  narrower  interspaces. 

6.  A.  carinatus,  n.  sp. 

Black,  densely  covered  with  thick  scales,  of  dark  brown  color;  mottled 
(but  not  tesselate)  with  pale  scales  upon  the  elytra,  forming  indistinct  trans- 
verse lines;  an  oblique  zigzag  band  about  the  middle  is  the  most  conspic- 
uous of  these  markings.  Prothorax  as  long  as  wide,  sides  strongly  rounded, 
widest  about  the  middle,  much  narrowed  in  front,  broadly  but  not  deeply 
constricted  near  the  tip;  disc  coarsely  and  densely  punctured,  very  dis- 
tinctly carinate.  Elytra  at  the  widest  part  scarcely  wider  than  the  middle 
of  the  prothorax;  oval,  sides  rounded,  basal  angles  not  prominent;  strife 
composed  of  quadrate  large  punctures;  interspaces  distinctly  defined:  third. 


j^eco^te.j  CRYPTOKHYXCHINI.  243 

fiftli  and  eighth  somewiiat  more  convex;  each  interspace  witli  a  row  of 
very  short,  thiclv,  inconspicuous  bristles.     Length  4  mm. ;  .16  incli. 
One  specimen,  Illinois.  Easily  known  by  the  strongly  carinate  prothorax. 

7.  A.  granosus,  n.  sp. 

Rather  stout,  black,  densely  clothed  with  dark  brown  scales.  Prothorax 
as  wide  as  long,  rounded  on  the  sides,  scarcely  Avider  at  the  middle  than  at 
the  base,  much  narrowed  in  front,  and  broadly  constricted;  disc  densely 
])unctured,  strongly  carinate,  marked  Avith  a  short,  transverse  white  line  at 
the  middle,  interrupted  at  the  dorsal  line;  the  parts  of  this  transverse  line 
are  nearly  joined  by  a  short,  posterior  dorsal  Avhite  line,  forming  a  T-shaped 
mark;  there  are  also  a  few  inconspicuous  dots  of  white  pubescence.  Elytra 
ovate,  distinctly  wider  at  the  middle  than  the  prothorax,  truncate  at  base, 
with  the  basal  angles  well  defined;  striiE  composed  of  large,  shallow,  quad- 
rate punctures;  interspaces  well  detined,  the  alternate  ones  more  elevated, 
and  interrupted  so  as  to  become  tuberculate;  the  brown  scales  are  mottled 
with  dots  of  pale  scales,  of  which  the  most  conspicuous  form  a  narrow,  ir- 
regular, transverse  band  about  the  middle;  the  bristles  are  very  short,  but 
more  di>tinct  than  in  the  preceding  species.     Length  3.4  mm.;  .13  inch. 

Florida,  at  Enterprise,  Haulover  and  Indian  River;  Messrs.  Hubbard 
and  Schwarz. 

8.  A.  sordidus,  n .  sp. 

Robust,  black,  clothed  with  a  dirt  colored  crust  concealing  the  sculp- 
ture, with  intermixed  slender,  curved  bristles  pointing  backwards;  beak 
naked  and  punctured  towards  the  tip,  not  carinate;  front  not  channeled. 
Prothorax  a  little  wider  than  long,  rounded  on  the  sides,  obsoletely  chan- 
neled. Elytra  striate,  with  the  interspaces  slightly  convex,  with  rows  of 
reclinate  bristles.     Length  2.5  mm.;  .10  inch. 

Texas,  Belfrage;  one  specimen. 

9.  A.  clavatus  Say,  Cure.  39;  ed.  Lee.  i,  297:  Boh.,  Sell.  Cure,  iv,  354. 

Enterprise,  Florida;  Messrs.  Hubbard  and  Schw^arz;  found  also  in  Illi- 
nois. This  small  species  is  thickly  clothed  with  brown  scales,  and  but 
slightly  varied  in  color;  there  are,  however,  two  interrupted  bands  composed 
of  small  white  spots  on  the  elytra;  the  striae  are  composed  of  large,  quadrate 
punctures;  the  interspaces  are  wide,  slightly  convex  and  furnished  with 
rows  of  long,  clavate  bristles.  The  prothorax  is  very  coarsely  punctured, 
not  carinate,  and  the  bristles  are  a  little  shorter  than  upon  the  elytra. 
Length  2.5  mm. ;  .10  inch. 

The  female  is  stouter  than  the  male,  witii  the  prothorax  not  mucli  wider 
at  the  middle,  and  the  elytra  much  more  rounded  on  the  sides. 

I  have  received  from  Col.  Motschulsky  a  specimen  from  New  Orleans, 
which  seems  quite  similar,  except  that  the  punctures  of  the  elytral  strise 
are  so  large  that  the  interspaces  become  very  narrow.  I  am  disposed  to  be- 
lieve that  this  appearance  is  owing  to  partial  abrasion  of  the  scales.  If, 
however,  Avith  a  larger  series  of  specimens,  it  should  be  found  to  bo  really 
distinct,  the  name  A.  xcabrosus  Motsch,  Avill  be  retained  for  it. 


244  cuRCULiuxiD^i^:. 


[LeConte. 


10.  A.  crassulus,  n.  sp. 

Rather  robust,  black,  denselj'  clotliecl  with  dark  brown  scales,  and  er<ct 
Uiick  Ijristles,  which  are  shorter  upon  the  prothorax.  The  latter  is  about 
as  long  as  wide,  rounded  on  the  sides,  slightly  wider  at  the  middle,  much 
narrowed  in  front  and  broadly  constricted;  densely  punctured,  with  a  few 
pale  brown  scales  at  the  sides,  and  a  small  spot  at  the  middle  of  the  base. 
Elytra  as  in  A.  clavatus;  brown  towards  the  base,  and  with  an  irreaular, 
broad,  yellowish  brown  band  behind,  occupying  the  posterior  third  of  the 
elytra.    Legs  clothed  with  yellow  brown  scales.  Length  2.5  mm.:  .10 inch. 

Haulover,  Florida;  Messrs.  Hubbard  and  Schwarz. 

11.  A.  longulus,  n.  sp. 

This  species  is  colored  exactl}^  like  the  preceding,  but  is  of  very  difi'erent 
form,  and  the  bristles  of  the  elytra  are  longer.  The  prothorax  is  a  little 
longer  than  wide,  and  is  distinctly  wider  at  the  middle  than  at  the  base . 
The  elytra  are  oblong,  nearly  parallel  on  the  sides,  suddenly  wider  at  base 
than  the  prothorax,  with  the  humeral  angles  prominent  and  rounded;  less 
obliquely  narrowed,  and  more  broadlj'  rounded  behind  tlian  usual.  Length 
2.0  mm. ;  .10  inch. 

Haulover,  Florida;  Messrs.  Hubbard  and  Schwarz.  I  should  consider 
this  as  the  r^  of  the  preceding  species,  if  the  bristles  of  the  elytra  were  not 
so  much  longer.  The  form  of  the  elytra  is  quite  different  from  any  other 
Acalles  known  to  me,  and  resembles  that  seen  in  certain  small  Cryptorhyn- 
cM.  The  longitudinal  distance  between  the  middle  and  hind  coxse  is  also 
greater  than  in  the  other  Acalles,  and  fully  as  great  as  in  G.  minutissimus ; 
l)ut  the  metathoracic  episterna  are  not  visible,  while  in  the  insect  last  named 
they  are  narrow,  and  very  apparent. 

13.  A.  iiuchalis,  n.  sp. 

Very  robust,  clothed  witii  brown  scales,  dark  and  jialer  intermixed.  Beak 
strongljr  punctured  and  sulcate,  finely  carinate,  occiput  clothed  with  pale 
scales.  Prothorax  nearly-  twice  as  wide  as  long,  rounded  on  the  sides, 
scarcely  wider  at  the  middle,  then  rapidly  narrowed  to  the  tip,  but  not  con- 
stricted; coarsely  and  densely  punctured,  with  three  very  indistinct  pale 
brown  lines;  a  slight  trace  of  a  narrow  median  smooth  line.  Elytra  ovate, 
truncate  at  base,  much  rounded  on  the  sides,  obliquely  narrowed  behind; 
basal  angles  obtuse,  not  prominent;  striae  composed  of  large,  quadrate  punc- 
tures; interspaces  wide,  slightly  convex,  each  with  a  row  of  moderately 
long,  pale,  clavate  bristles;  the  scales  of  the  posterior  third  are  more  mixed 
with  yellowish  brown,  and  are  limited  in  front  by  an  angulated  line  of  pale 
scales  extending  to  the  fifth  stria.  Beneath  nearly  black,  with  scattered 
pale  scales;  mesosternum  less  deeply  emarginate  than  in  the  preceding 
species,  but  more  stronglj'  than  in  A.  pectoralis.  Metasternum  as  short  as 
in  the  other  species,  but  with  the  episterna  narrow  and  distinct.  Length 
4  mm. ;  .16  inch. 

Capron,  Florida;  Messrs.  Hubbard  and  Schwarz;  one  specimen.  An 
anomalous  species,  which  with  the  form  of  Aralles  combines  the  distinct 


LeConte.]  CRYPTORHYXCHINI.  245 

nietathoracic  side  pieces  of  Cryptovhymlius.  The  last  joint  of  the  tarsi 
is  rather  longer,  and  the  claws  somewhat  larger  than  in  the  other  species  of 
Acalles;  the  beak  is  also  more  slender  and  differently  sculptured.  A  revis- 
ion of  the  tribe  with  careful  study  of  the  exotic  forms  will  prol)ably  show 
the  proprietj'  of  placing  this  species  as  a  distinct  genus. 

.    13.  A.  pectoralis,  n.  sp. 

Robust,  black,  covered  with  depressed  scales  of  dark  brown  color,  varie- 
gated with  pale  on  the  elytra,  forming  narrow,  undulated  bauds,  and  on  the 
protliorax  indistinct  stripes;  intermixed  bristles  stout,  short,  erect.  Anteunaj 
testaceous.  Beak  coarsely  punctured,  linely  carinate,  scaly,  tip  naked; 
liead  scaly  like  the  beak,  front  not  impressed.  Prothorax  wider  than  long, 
convex,  much  rounded  on  the  sides,  distinctly  constri  ted  in  front,  chan 
neled.  Elytra  much  rounded  on  the  sides,  striae  deep  and  fine,  interspaces 
wide,  slightly  convex.  Body  beneath  densely  but  less  coarsely  punctured, 
clothed  with  yellowish  brown  scales;  mesosternum  very  broadly  emargi- 
nate.     Legs  annulated.     Length  3  mm.;  .  12  inch. 

One  specimen,  Illinois.  Quite  distinct  from  all  the  others  by  the  less 
emarginate  mesosternum,  and  the  depressed  scales  of  the  prothorax  and 
el^'tra.  It  is  possible  that  these  differences  should  be  considered  as  generic, 
l)ut  I  am  unwilling  to  so  regard  them  without  a  careful  study  of  foreign 
species. 

EURHOPTUS  n.  g. 

I  have  separated  as  a  distinct  genus  a  small  pyriform,  robust  species,  not 
scaly,  but  thinly  clothed  with  reclinate  bristles,  in  which  the  metasternum 
is  very  short  as  in  Acalles,  but  which  difters  essentially  by  the  club  of  the 
antennae  ;  this  is  stouter,  less  elongate,  and  annulated  only  near  the  tip; 
the  funicle  is  7-jointed;  the  second  joint  a  little  longer  than  third,  3-7 
equal,  short,  closely  united.  Beak  stout,  as  long  as  the  protliorax.  Meso- 
sternum horizontal,  emarginatiou  broad,  with  acute  edge.  First  ventral  seg- 
ment longer  than  metasternum,  with  a  deep,  polished  triangular  impres- 
sion; intercoxal  process  triangular;  second  segment  shorter  than  third  and 
fourth  united;  fifth  as  long  as  the  three  preceding  united.  Thighs  not 
toothed,  tibiae  slender,  straight,  mucronate  at  tip;  tarsi  with  third  joint 
broadly  dilated;  foitrth  small  with  very  small,  approximate  claws.  Elytra 
connate;  scutellum  not  visible.  ' 

1.  Eu.  pyriformis,  n.  sp. 

Robust,  pear-shaped,  convex,  dulh  black,  thinly  clothed  with  pale,  recli- 
nate curved  bristles.  Beak  stout,  rather  depressed,  finely  punctured,  naked 
at  tip,  subcarinate;  eyes  small,  depi-essed,  front  not  impressed;  antennae 
brown.  Prothorax  not  wider  than  long,  narrowed  from  the  base,  sides 
straight,  base  nearly  straight,  disc  densely  and  coarsely  punctured,  feebly 
transversely  impressed  at  a  distance  from  the  tip.  Elytra  fitting  closely  to 
the  prothorax,  strongly  rounded  on  the  sides;  striae  composed  of  verj' large, 
rather  distant  foveae;  interspaces  near  the  suture  somewhat  convex.  Length 
less  than  2.5  mm. ;   .10  inch. 


246  CUKCULIOJs^ID^. 


iLeConte. 


Three  specimens  from  Illinois.  The  ventral  surface  is  nearly  smooth;  the 
fifth  segment  punctulate  and  broadly  concave. 

MICROMASTUS  n.  g. 

I  have  established  this  genus  upon  the  C^alifornian  Cvyptovhynchus  gra- 
cilis Boh.,  Eugenics  Resa,  Col.  140. 

It  is  related  by  the  short  metasternum  and  indistinct  side  pieces  to 
Acalles,  but  differs  by  the  mesosternum  l)eing  small,  and  but  very  slightly 
prominent,  though  the  concavity  of  the  front  perpendicular  surface  shows 
that  the  tip  of  the  beak  rests  against  it  in  repose;  the  pectoral  canal  is  deep, 
though  not  sharply  limited  Ijehind  the  front  coxse,  which  are  nearly 
contiguous.  The  body  is  elongate;  the  elytra  wider  than  the  prothorax, 
elongate-oval,  sharply  margined  at  the  base,  with  the  humeri  not  promi- 
nent. The  prothorax  is  longer  than  wide,  broadly  rounded  on  the  sides, 
truncate  in  front,  with  the  postocular  lobes  nearly  obsolete,  and  fringed 
with  vibrissie.  Head  convex,  eyes  small,  coarsely  granulated;  beak  as  long 
as  the  prothorax,  not  stout,  slightlj^  curved,  rather  depressed  at  tip;  an- 
tennae inserted  about  one-fourth  from  tip,  slender;  club  pubescent,  not  very 
distinctly  annulated  on  the  outer  half.  Legs  moderate,  thighs  scarcely  cla- 
vate,  feebly  toothed  beneath;  tibia>  (front  pair)  sinuate  on  inner  side;  tarsi 
with  third  joint  broad,  bilobed,  fourth  as  long  as  the  others  united;  claws 
large,  divergent,  simple.  Ventral  sutures  straight;  second  and  fifth  seg- 
ments equal  to  third  and  fourth  united. 

1.  M.  gracilis  (Boh.),  1.  c.sup.  {Cryptorliynclm.s). 

Elongate,  brown,  thinly  clothed  with  white  pul)cscence,  beak  punctured 
and  striate  towards  the  base,  with  a  narrow,  smooth  dorsal  line.  Prothorax 
deeply  and  coarsely  punctured.  Elytra  with  rows  of  approximate,  quadrate 
punctures ;  interspaces  narrow,  convex ;  behind  the  middle  on  each  side  are  two 
spots  of  white  pubescence;  the  hinder  one  extending  from  the  first  to  the  fifth 
stria,  the  anterior  one  from  the  fourth  to  the  sixth.  Beneath  coarsely  and 
densely  punctured.     Length  3.6  mm. ;  .15  inch. 

San  Francisco;  collected  by  Mr.  Henry  Edwards;  the  specimen  is  very 
imperfect. 

PSEUDOMUS  Sch. 

In  this  genus  the  metasternum,  though  short  and  without  distinct  epis- 
terna  is  longer  than  in  Acalles,  and  nearfy  or  quite  as  long  as  the  first  ven 
tral;  the  mesosternum  is  horizontal,  continuing  the  plane  of  the  metaster 
num,  with  which  it  is  closelj'  united;  the  emargination  is  deep,  extending 
to  about  the  middle  of  the  coxoe.  The  second  ventral  is  not  longer  than  the 
third  or  fourth  separately;  the  fifth  is  a  little  longer.  The  thighs  are  armed 
with  a  tooth  in  some  species,  unarmed  in  others;  the  tibite  are  straight, 
slightly  mucronate  at  tip;  tarsi  with  third  joint  broadly  dilated;  fourth  joint 
of  usual  size;  claws  simple,  divergent.  The  beak  is  more  slender  than  in 
Acalles,  and  the  general  outline  is  that  of  Chalcodermus. 

1.  Ps.  truncatus,  n.  sp. 

Dark  brown,  thinly  clothed  with  small,  brown  scales;  l)eak  slender,  as  long 


LieConlc] 


CRYPTORHYNCHINI.  247 


a,s  the  prothorax,  nearly'  smooth  at  tip,  puuctured  and  feebly  striate  at  base ; 
head  punctured.  Prothorax  wider  tiian  long,  narrowed  from  the  base  for- 
wards, sides  nearly  straight,  convex;  not  densely  punctured,  with  a  median 
stripe  and  a  small  spot  each  side,  smooth.  Elytra  with  stri*  composed  of 
large,  distant  punctures,  with  an  irregular  basal  fascia,  and  a  large,  com- 
mon spot  behind  the  middle  white;  the  latter  prolonged  backwards  along 
the  suture  nearly  to  the  tip.  Beneath  thinly  clothed  with  yellowish  scales; 
ventral  segments  2-4  nearly  smooth;  fifth  Avith  a  few  large  punctures; 
thighs  obtusely  toothed.     Length  4.6  mm.;  .18  inch. 

South  Carolina  and  Georgia;  Dr.  Zimmermanu.  I  have  adopted  the  spe- 
cific name  given  by  Dejean  in  his  Catalogue. 

2.  Ps.  sedentarius  (Say),  Cure.  30  (^Gleogonus) ;  ed.  Lee.  i,  298;  Boh., 
Sch.  Cure,  iv,  267. 

Florida;  unknown  to  me.  Difters  from  the  preceding  bj-  the  unarmed 
thighs,  and  ditierently  formed  posterior  elytral  spot. 

TYLODERMA  Say.  (1831.) 
Analcis  Sch.  (1837.) 

In  this  genus  the  beak  is  rather  short  and  stout,  and  the  mesosternum, 
while  very  prominent,  and  forming  a  sharp  edge  which  limits  the  pectoral 
groove,  is  very  feebly  emarginate,  resembling  in  this  respect  Acalles  i^ecto- 
ndis.  From  Acalles  it  differs  evidently,  besides  manj^  other  characters,  by 
the  more  elongate  form ;  the  very  distinct  postocular  lobes,  the  prothorax 
prominent  and  rounded  in  front;  the  longer  metasteruum,  with  distinct, 
though  narrow  side  pieces.  From  Cvyptorhynchus  it  is  distinguished  by  the 
form  of  body,  the  feebly  emarginate  mesosternum,  and  the  6-jointed  funic- 
ulus, as  w^ell  as  by  the  stouter  beak,  with  more  suddenly  declivous  anten- 
nal  grooves.     The  first  ventral  suture  is  nearly  obliterated. 

The  species  fall  naturally  into  two  divisions  alreadj"  indicated  by  Dr. 
Horn,  Proc.  Am.  Ent.  Soc.  1873,  467;  the  first  contains  the  type  of  Tylo- 
derma,  the  second  that  of  Analcis;  I  have,  therefore,  restored  the  former 
name  to  the  conjoined  genus. 

Division  I. 

In  the  first  division  the  color  is  not  metallic;  the  pubescence  is  in  distinct 
spots,  and  sometimes  scaly;  the  abdomen  is  coarsely  punctured,  and  the 
punctures  of  the  elytra  are  large.  These  species  resemble  in  appearance 
Mamactes,  but  differ  very  greatly  in  structural  characters. 

I  have  nothing  to  add  to  the  characters  of  the  four  species  of  this  group, 
as  given  b}^  Dr.  Horn,  but  to  say  that  T.  foveolatum  varies  greatly  in  size, 
some  specimens  being  no  larger  than  T.  variegatum,  from  which  it  is  at  once 
distinguished  by  the  foveate  rather  than  punctate  prothorax. 

1.  T.  morbillosura.  Anatcis  morb.  Lee.  Pac.  R.  R.  Expl.  insects,  p.  58; 
Horn,  Proc.  Am.  Phil.  Soc.  1873,  467. 
One  specimen,  San  Francisco,  California. 


248  CURCULIONTDyE. 


[LeCoiite. 


2.  T.  foveolatuni  Say,  Cure.  19;  ed.  Lee.  i,  284.  Cryptorhynchus  fov.. 
Germ.,  Sch.  Cure,  iv,  140:  Analcis  fov.  Horn,  loc,  eit.  468. 

New  York  to  Texas. 

3.  T.  variegatus.  Analcis  oar.  Horn,  Pr.  Am.  Phil.  Soc.  1873,  408. 
Southern  and  Western  States. 

4.  T.  fragarise.  Analcis  frag.  Riley,  Report  on  Insects  of  Missouri,  iii, 
42,  fig.  14:  Horn,  loc.  eit.  469. 

Illinois  and  Missouri,  infesting  strawberry  vines. 

5.  T.  longum,  n.  sp. 

Elongate,  black,  densely  clothed  with  small  black  scales,  which  make 
the  surface  opaque;  mottled  irregularly  with  white  on  the  elytra.  Beak 
strongly  punctured.  Prothorax  longer  than  wide,  widest  at  the  middle, 
where  the  sides  are  strongly  rounded,  much  narrowed  in  front,  feebly  nar- 
rowed behind,  feebly  constricted  near  the  tip,  which  is  broadly  rounded; 
coarsely  and  confluently  punctured,  very  finely,  almost  imperceptibly  cari- 
nate.  Elytra  scarcely  wider  than  the  prothorax,  cylindrical,  elongate,  l»ase 
truncate,  humeri  rectangular  rounded;  striae  deep,  composed  of  large  ap- 
proximate punctures,  interspaces  narrow,  the  outer  ones  convex.  Beneath 
coarsely  punctured,  somewhat  shining;  thighs  obsoletely  toothed.  Length 
3.7  mm. ;  .15  inch. 

One  specimen,  Haulover,  Florida;  Messrs.  Hubbard  and  Sehwarz.  Very- 
distinct  by  the  more  elongate  form,  and  denser  sculpture;  the  beak  is  also 
longer  and  more  slender,  but  the  mesosternum,  as  in  the  other  species,  is- 
only  feebly  emarginate. 

Division  II. 

In  this  division  the  color  is  metallic,  the  surface  glabrous;  the  sculpture 
fine,  or  even  indistinct,  and  the  abdomen  smooth,  or  partly  so. 

6.  T.  sereum.  Bagous  cereus  Say,  Cure.  29;  ed.  Lee.  i,  297;  Analcis 
(ereus  Rosensch.,  Sch.  Cure.  iv.  279;  Horn,  Proc.  Am.  Phil.  Soe.  1873,  460. 

The  specimens  of  T.  (ereii?7i  as  observed  by  Dr.  Horn  vary  greatly  in 
size  and  sculpture;  in  some  the  prothorax  is  nearly  smooth,  in  others  it  is 
sparsely  and  coarsely  punctured  on  the  fianl^s;  in  others  again  the  disc  is 
in  addition  distinetlj^  punctured. 

With  an  increased  series  of  specimens  I  observe  that  in  two  individuals 
the  disc  of  the  prothorax  is  deeply  and  sparsely  punctured,  and  the  flanks 
coarsely  punctured;  the  ventral  segments  1-2  are  very  distantly  and  finely 
punctured;  the  third  and  fourth  are  deeply,  transversely  impressed,  and  the 
front  or  convex  part  is  marked  Avitli  a  series  of  fine  punctures;  the  fifth 
joint  is  sparsely  but  deeply  punctured.     Length  3.6  mm.;  .14  inch. 

Middle  and  Western  States. 

In  specimens  from  South  Carolina  and  Florida,  of  large  size,  the  pro- 
thorax even  on  the  flanks  is  smooth;  the  punctures  of  the  elytra  less  regu- 
lar and  larger,  the  surface  somewhat  rugose,  and  the  ventral  segments  are 
smooth,  the  fifth  is  transversely  concave  near  the  tip;  the  metasternum  is 


LeConte.] 


CRYPTORHYNCHINI.  249 


iilsi)  sniootli,  as  is  not  the  case  in  any  other  specimens  in  my  collection. 
Length  4.5  mm.;  .18  inch. 

Two  very  small  specimens  from  Georgia  have  the  disc  and  flanks  of  the 
prothorax  nearly  smooth,  and  the  ventral  segments  also  smooth,  except  the 
tiftli,  which  is  ver,y  finely  ]Hinctured  and  surrounded  Ijehindby  a  marginal 
line,  but  not  transversely  impressed;  the  legs  are  brown.  Length  2.3  mm. ; 
.09  incli. 

I  believe  that  these  forms  indicate  species  which  the  amount  of  material 
at  my  disposal  does  not  permit  me  to  distinctly  define,  and  which  I  shall 
therefore  abstain  from  naming.  Careful  observation  of  their  habits  and 
collection  in  quantity,  when  possible,  will  enable  the  correctness  of  this  view 
to  be  tested  in  future. 

One  specimen  from  Texas,  sent  by  Mr.  Belfrage,  is,  however,  so  dificrent 
as  to  require  specific  recognition. 

7.  T.  baridium,  n.  sp. 

Dull  black,  with  a  l)ronze  tinge;  beak  strongly  punctured,  front  not 
channeled,  transverse  impression  feeble;  head  sparsely,  finely  punctured. 
Prothorax  deeply  but  not  densely  punctured,  not  longer  than  wide,  sides 
parallel  behind,  obliquely  narrowed  in  front  of  the  middle,  scarcely  con- 
stricted at  tip.  Elytra  at  base  very  little  wider  than  the  prothorax,  humeri 
not  prominent,  slightly  wider  for  a  very  short  distance,  then  gradually  nar- 
i-owed  to  the  tip;  punctures  of  the  rows  distant,  obsolete  behind,  interspaces 
very  finely  and  sparsely  punctulate,  with  scarcely  perceptible  white  hairs 
in  these  punctulations,  and  in  the  punctures  of  the  rows.  Mesosternum  and 
metasternum  coarsely  and  sparsely  punctured;  ventral  segments  sparsely 
but  gradually  moi*e  deeply  punctured;  fifth  with  a  rounded  impression. 
Length  4  mm.;  .16  inch. 

PHYRDENUS  n.  g. 

The  form  is  precisely  that  of  Conotrachehts  anaglyptieus,  but  the  pec- 
toral canal  is  deep  and  terminates  in  the  mesosternum,  which  is  excavated 
for  almost  its  whole  length,  as  in  Cryptorhynchus;  the  claws  are  broadly 
appendiculate  at  base. 

The  beak  is  as  long  as  the  prothorax,  slightly  compressed,  gibl)ous  and 
suddenly  separated  from  the  front  at  base;  the  antennal  grooves  are  oblique, 
as  in  Conoti'ac7ielus;  the  antennte  inserted  one-fourth  from  the  tip,  rather 
slender,  funicle  7-jointed;  club  elongate-oval,  annulated.  Prothorax  with 
very  large,  postocular  lobes,  concealing  the  eyes  in  great  part  in  repose. 
Eyes  coarsely  granulated;  large,  distant  above.  Side  pieces  of  metathorax 
moderately  wide,  distinct;  ventral  sutures  straight;  second  and  fifth  seg- 
ments a  little  longer  than  the  third  and  fourth  separately.  Legs  rather 
slender,  thighs  feebly  clavate,  not  toothed ;  tibiae  bent  at  the  base,  slender, 
feebly  mucronate  at  tip;  tarsi  with  third  joint  bilobed;  fourth  long  with 
divergent,  appendiculate  claws. 

1.  P.  undatus,  n.  sp. 

Short  and  stout,  blackish,  densely  clothed  with  verj'  small  scales  forming 
a  dense  crust,  of  a  pale  brown  color,  varied  with  darker  on  the  pi'othorax, 

TROC.  AMER.  I'HILOS.  SOC.   XV.   90.  2v 


250  CUKCULIOXID.E. 


jljeOonto. 


base  and  tip  of  the  elytra;  small,  erect  bristles  are  intermixed,  forming 
tufts  on  the  prothorax,  and  rows  on  the  elytra.  Prothorax  as  wide  as  long, 
sides  parallel  for  two-thirds  the  length,  strongly  narrowed  in  front  and 
deeply  constricted;  disc  uneven,  deeply  and  broadly  channeled,  with  four 
conspicuous  tufts  of  black  bristles.  Elytra  at  base  nearly  twice  as  wide  as 
prothorax;  humeri  prominent,  rounded;  strite  not  very  distinct;  third,  fifth 
and  seventh  interspaces  slightly  elevated;  the  base  and  tip  are  dark  brown, 
with  an  intermediate,  very  broad,  slightly  variegated  band  of  pale  brown ; 
there  is  also  a  short,  pale  line  at  the  base  of  the  third  interspace.  Beneutli 
densely  punctured;  punctures  of  first  ventral  segment  coarser.  Length 
4.0  mm. :  .18  inch. 

Missouri,  (Schuster) ;  Georgia,  Texas,  (Belfrage).  This  species  dirters  re- 
markably from  all  others  known  to  me  by  the  head  being  convex  behind, 
and  deeply  concave  between  the  eyes,  so  that  the  base  of  the  beak  appears 
gibbous.  Judging  from  a  MS.  drawing  of  my  father,  this  is  Gryptorhynch>is 
undatus\  Dej.  Cat. 

CRYPTORHYNCHUS  111. 

The  species  are  numerous,  and  as  ver}'  properly  suggested  bj'  Lacordaire 
need  subdivision  into  several  genera.  The  peculiar  modifications  of  struc- 
ture noted  by  him  are  not  represented  in  our  founa,  and  the  species  men- 
tioned below  seem  to  agree  in  all  characters  of  importance.  They  may 
be  divided  into  groups,  commencing  with  those  species  which  more  nearly 
resemble  in  form  Conotrachelus. 

A.  Antenutc  slender,  second  joint  of  fvuiicle  as  long  as  the  first  ;  o-7 
diminishing  gradually  in  length,  club  indistinctly  annulated. 

a.  Elytra  suddenly  wider  than  prothorax  at  base  ;  prothorax  carinate. 

-*    Thighs  straight  beneath Sp.  1-3. 

"*  Thighs  sinuate  near  the  tip Sp.  4. 

b.  Elytra  but  little  wider  at  base  than  the  prothorax  : 

*     Prothorax  strongly  constricted  at  tip Sp.   5-8. 

**  Prothorax  carinate,  feebly  constricted  at  tip Sp.  9. 

B.  Antenna'  stouter,  funicle  with  joints  2-7  equal  in  length, 

gradually  broader,  club  ver}^  distinctl}'  annulated Sp.  10-11. 

Division  A — a*. 

The  species  of  this  division  bear  a  general  resemblance  to  Conotrachelus 
in  consequence  of  the  elytra  l)eing  suddenlj'  wider  than  the  prothorax, 
and  the  humeral  angles  prominent,  rectangular  and  rounded  ;  the  sides 
gradually  taper  behind.  The  prothorax  is  strongly  carinate,  gradually 
narrowed  from  the  base  forwards,  strongly  constricted  near  the  tip, 
with  not  very  well-marked  postocular  lobes.  The  beak  is  slender, 
longer  than  the  prothorax,  curved,  cylindrical,  carinate,  and  striate  at  base. 
The  antennae  are  elongate,  the  funicle  is  slender,  with  the  second  joint 
as  long  as  the  first,  and  the  following  gradually  diminish  in  length  and 


LeConte.]  CRYPTORHYNCHINI.  251 

become  more  rounded ;  the  club  is  scarcely  aunulated.  The  legs  are 
slender,  the  thighs  not  clavate,  with  a  feeble  indication  of  two  small  distant 
teeth,  which  become  evanescent  in  the  smaller  species.  The  tibi*  are 
straight,  with  a  sudden  bend,  and  a  distinct  angle  in  some  species  on  the 
outer  edge  near  the  knee  ;  the  third  tarsal  joint  is  broadly  bilobed,  and  the 
fourth  is  as  long  as  the  first,  rather  clavate,  with  moderate  sized  divergent 
claws. 

Tlie  species  maj^  be  tabulated  as  follows  : 
Black,  with  an  oblique  white  spot  on  each  elytron  :  tibia' 

angulated  at  base 2. 

Brown,  variegated  ;  tibise  not  angulated  at  base 3 

2.  Larger,  thighs  feebly  liidentate 1.  parochus. 

Small,  thighs  not  toothed 2.  bisignatus. 

8.  Prothorax  and  ch'tra  Avith  bunches  of  black  bristles. . .      3.  fuscatus. 

1.  O.  parochus  Say,  Cure.  19;  ed.  Lee.  i.  285;  Cu.rculio  parocJiu^ 
Herbst,  Kiifer,  vii,  55  ;  tab.  99,  fig.  5. 

Middle  and  Western  States.  Closely  resembles  the  next  species,  but  is 
readily  distinguished  by  the  greater  size  (0-6.5  mm.;  .24-.26  inch).  The 
two  femoral  teeth  are  small  and  distant. 

2.  C.  bisignatus  Say,  Cure.  19;  ed.  Lee.  i,  284;  C.  luctaosus  Boh., 
Sell.  Cure,  iv,  146  ;  ibid,  viii,  1,  348  ;  C.  misellm  Boh.,  ibid,  iv,  120,  (fide 
Boheman). 

Middle,  Southern  and  Western  States,  to  Texas.     If  the  locality  of  the 
synonym  last  cited  be  correct,  it  is  also  found  in  Brazil.     The  thighs  are 
sometimes    entirely   unarmed,   sometimes  very    obsoletely  bidenticulate. 
Length  3.5  mm.;  .14  inch  ;  it  does  not  seem  to  vary  in  size,  but  the  white  . 
mark  of  the  elytra  is  sometimes  very  indistinct. 

C.  ohliquefasciatus  Boh.,  Sch.  Cure,  viii,  1, '  349,  is  merely  a  more 
distinctly  marked  variety  in  which  the  oblique  spot  extends  from  the 
seventh  to  the  second  stria,  becoming  a  band,  and  the  scattered  white  dots 
are  more  conspicuous.     One  specimen  is  only  2.5  mm.;  .10  inch  long. 

I  have  three  specimens  from  the  Middle  States  in  which  the  upper  sur- 
face is  clothed  with  brown  scales,  and  the  elytral  spots  are  more  distinct  ; 
the  humeri  seem  less  prominent,  and  the  form  more  elongate.  It  seems  to 
be  C  pumilus  Boh.,  Sch.  Cure,  iv,  122.  It  is  probably  a  distinct  species, 
but  I  can  find  no  other  characters  upon  which  to  separate  it,  than  those  I 
have  mentioned. 

3.  C.  fuscatus,  n.  sp. 

Blackish  brown,  clothed  w'ith  pale  and  dark -brown  scales,  and  bunches 
of  erect  blackish  bristles.  Beak  moderately  stout,  as  long  as  the  prothorax, 
carinate,  striate  and  coarsely  punctured  at  base,  then  naked  and  more 
finely  punctured ;  antennae  inserted  nearly  at  the  middle  of  the  beak, 
slender,  club  pubescent,  indistinctly  annulate;  head  punctured,  vertex  very 
finely  carinate.  Prothorax  as  wide  as  long,  strongly  narrowed  from  the 
base,  rounded  on  the  sides,  constricted  in  front,  deeply  and  densely  punc- 


252  CURCULIONID^.  [LeConte. 

lured,  carinate  ;  disc  with  three  conspicuous  tufts  of  bristles,  and  two 
smaller  ones  near  the  front  margin  ;  others  scattered  singly  ;  scales  brown, 
with  three  narrow  indistinct  lines  of  paler  ;  base  squarely  truncate  each 
side,  prolonged  into  a  distinct  angle  at  the  scutellum,  which  is  black. 
Elytra  one-third  wider  at  base  than  the  prothorax,  humeri  rounded,  promi- 
nent, sides  not  dilated,  but  parallel,  and  then  gradually  narrowed  behind, 
clothed  mostly  with  pale-brown  scales,  darker  at  the  base  and  tip,  and  with 
a  broad  middle  band  sometimes  indistinct;  stri*  fine,  punctured,  third, 
fifth  and  seventh  interspaces  more  elevated  ;  the  third  and  fifth  appear 
interrupted  on  account  of  crests  of  erect  blackish  bristles  ;  of  these  there 
are  three  long  ones  on  the  third  and  three  or  four  small  ones  on  the  fifth  ; 
also  a  few  small  bunches  on  the  second  interspace.  Beneath  clothed  with 
pale-brown  scales,  deeply  and  densely  punctured  ;  thighs  slender,  not,  or 
obsoletely  toothed;  tibiae  straight,  not  augulated  at  base  as  in  C.  2)(i)-oehii,s 
and  bisignatxts.    Length  5.5  mm. ;  .22  inch. 

Southern  and  Western  States.  So  far  as  the  meagre  description  given 
l\v  Say  goes,  this  species  agrees  well  with  his  C.  obliquus,  but  as  Bohcman 
and  Say  agree  in  stating  that  that  name  belongs  to  the  species  called  I)}-  the 
former  C.  umhrosus,  I  do  not  feel  at  liberty  to  apply  it  to  the  present  one, 
for  which  I  have  adopted  the  Catalogue  name  of  Dejean.  If  our  founa  had 
more  representatives  of  this  genus,  I  would  separate  this  as  a  distinct  divis- 
ion, differing  from  the  pi-eceding,  not  only  by  the  tibiae  and  stouter  beak, 
but  by  the  ninth  elytral  interspace  being  not  elevated,  and  by  the  post  ■ 
ocular  prothoracic  lobes  being  more  prominent. 

Division  A — a**. 

The  single  species  repi'eseuting  this  division  in  our  fauna  is  of  rather 
large  size,  more  elongate,  and  less  Conotrachelus-\\V.(i  than  the  species  of 
the  preceding  division,  from  which  it  differs  chiefly  by  the  thighs  being 
deeply  sinuate  beneath  near  the  outer  end,  and  by  the  two  denticles  being 
near  together.  The  beak  is  stouter  than  in  C.  paroeJius,  but  hardly  more 
so  than  in  C.  fuscatus,  carinate  and  striate  at  base;  the  antenn*  are  inserted 
about  two-fifths  from  the  end;  the  funicle  is  slender;  second  joint  as  long  as 
the  first,  the  others  gradually  shorter;  club  not  perceptibly  annulated.  Pro- 
tliorax  rounded  on  the  sides,  strongly  narrowed  in  front,  and  feebl}'  con- 
stricted, postocular  lobes  not  very  distinct;  base  squarely  truncate  each  side, 
prolonged  into  a  distinct  angle  at  the  scutellum.  Elytra  one-third  wider  at 
base  than  the  prothonjx,  nearly  parallel  on  the  sides,  then  narrowed  to  the 
tip,  humeri  rounded,  less  prominent  than  in  the  first  division;  striaj  com- 
posed of  large  punctures;  third,  fifth,  and  seventh  interspaces  slightly 
elevated.  The  ventral  segments  are  very  coarsely  punctured,  and  the 
fifth  in  the  only  perfect  specimen  before  me  has  a  very  deep  circular 
impression,  probably  sexual,  and  indicating  the  (j^.  The  thighs  are  slender, 
with  two  small  approximate  teeth,  then  deeply  sinuate  near  the  tip;  the 
tibiae  are  straight,  and  rather  strongly  mucronate  at  tip,  suddenly  bent  at 
base  near  the  knee;  tarsi  as  in  the  first  division. 


LeConte.J 


CRYPTORHYNCHi:Nr.  253 


4.  C  obliquus  Say,  Cure.  38;  ed.  Lee.  i,  396  CO;  C.  umbras  us  Boh., 
Sell.  Cure,  iv,  110. 

Middle  States;  our  largest  species.  I  only  restore  the  name  of  Say  to  this 
insect  in  deference  to  the  statement  of  both  Say  and  Boheman  that  the  two 
names  represent  the  same  species.  My  own  preference  would  be  to  ignore 
this  assertion  altogether,  to  call  No.  3  C.  obliquus,  and  the  present  one  iim- 
brosus.  It  seems  to  me  to  be  a  case  of  confusion  of  two  species  by  Mr.  Say, 
similar  to  that  recorded  in  the  genus  Calosoma;  when  by  not  obsei'ving 
very  obvious  differences,  he  sent  to  Dejean  under  the  name  of  C.  calidum, 
a  very  distinct  species  afterwards  described  bj^  the  latter  as  C.  Sayi. 

A— b*. 

The  species  representing  this  division  in  our  fauna  are  of  an  elongate- 
oval  form,  with  the  elytra  at  Ijase  but  little  wider  than  the  prothorax ;  the 
humeral  angles  are  obtusely  rounded  not  very  prominent;  the  sides  are 
parallel,  then  obliquely  narrowed  to  the  tip.  The  prothorax  is  wider  than 
long,  much  rounded  on  tlie  sides,  narrowed  in  front  of  the  middle,  and 
very  strongly  constricted,  postocular  lobes  broad ;  the  disc  is  cariuate ,  the  base 
broadly  emarginate  each  side,  with  the  angle  in  front  of  the  scutellum  very 
small,  not  prominent.  Scutellum  small,  white.  The  beak  is  as  long  as  the 
prothorax,  rather  stout,  somewhat  flattened;  the  antennte  are  inserted 
about  the  middle  of  the  beak;  funicle  slender,  second  joint  as  long  as  the 
first;  the  others  gradually  diminishing,  club  elongate-oval,  annulated. 
Thighs  slightly  clavate,  armed  with  a  single  tooth,  which  is  nearly  obso- 
lete in  the  smaller  species;  tibis  nearly  straight;  tarsias  in  the  preceding 
divisions. 

The  body  is  densely  clothed  with  small,  depressed  scales,  with  very 
short,  stout  bristles  intermixed,  which  in  C.  apiculatus  become  spines. 

Thorax  with  an  elongate  median  pale  spot 5.  obtentus. 

"    sides  broadly  pale,  disc  black 6.  fallax. 

Smaller,  elytra  with  pale  transverse  band 7.  minutissinius. 

Alternate  spaces  of  elytra  with  a  row  of  spines 8.  apiculatus. 

0.  C.  obtentus.  CurcuUo  obt.  Herbst,  Kafer,  vii,  38,  pi.  99,  fig.  8. 
Cri/ptorhynchus  ypsilon  Boh.,  Sch.  Cure,  iv,  100. 

Middle  and  Southern  States;  the  specimen  described  by  Herbst  was  evi- 
dently badly  preserved,  and  the  median  pale  line  of  the  prothorax  had  dis- 
appeared; normally  this  line  is  wider  at  the  middle,  of  a  narrow  lozenge- 
shape,  and  includes  a  dark  central  spot.  When  the  front  part  is  abraded  it 
assumes  a  Y-shape.  The  third  and  fifth  elytral  interspaces  are  strongly 
elevated;  the  femoral  tooth  is  quite  distinct.  Length  5.3-7.5  mm.:  .10- 
.3  incli. 

0.  C.  fallax,  n.  sp. 

Elongate-oval,  black,  covered  with  pale  brown  scales,  with  intermixed 
short  bristles;  disc  of  prothorax  and  large  common  triangular  spot  on  elytra 
black.  Beak  strongly  punctured,  as  long  as  the  prothorax,  flattened,  scarce- 


254  CUKCULIONID^. 


[LeC'onte. 


ly  subcarinate,  with  a  smooth  narrow  median  line;  antennit  brown  with 
slender  funicle;  club  oval -acuminate,  annulated.  Prothorax  wider  than 
long,  narrowed  gradually  in  front,  broadly  rounded  on  the  sides,  strongly 
constricted  near  the  tip,  deeply  and  densely  punctured ;  very  finely  carinate 
behind;  base  rather  strongly  bisinuate,  medial  angle  small,  distinct;  scutel- 
lum  very  small,  covered  with  white  scales.  Elytra  very  little  wider  than 
prothorax  at  base,  humeri  rectangular,  slightly  rounded,  not  prominent, 
sides  parallel,  then  obliquely  narrowed  to  the  tip;  stria;  composed  of  large, 
subquadrate  punctures,  interspaces  some wiiat  convex;  third  and  fifth  more 
elevated.  Legs  slender,  thighs  with  one  very  small  tooth;  tibiae  straight, 
outer  edge  angulated  near  the  base;  tarsi  as  in  the  preceding  species. 
Length  4.3  mm. ;  .17  inch. 

Illinois  to  Texas.  The  size  of  the  thoracic  and  elytral  dark  space  is  some- 
what variable;  it  may,  however,  be  stated  in  general  terms,  that  it  occupies 
nearly  the  whole  of  the  base  of  the  prothorax,  and  narrows  to  the  apex,  of 
Avliicli  it  covers  the  middle  third;  it  extends  on  the  elytra  from  the  humeri 
obliquely  backwards,  ending  on  the  suture  about  the  middle;  in  other  spec- 
imens there  is  a  brown,  irregular  band  behind  it  and  connected  with  it, 
but  this  is  probably  produced  by  an  abrasion  of  the  scales.  The  body  be- 
neath is  densely  clothed  with  dirt  colored  scales. 

I  have  adopted  the  name  given  in  Dejean's  Catalogue. 

7.  O.  minutissimus,  n.  sp. 

Oval,  moderately  elongate,  brown,  varied  with  blackish  spots,  clothed 
with  black,  brown  and  pale  scales;  the  latter  forming  an  elongate  basal 
spot  on  the  prothorax,  and  a  transverse  band  behind  the  middle  of  the 
elytra,  angulated  at  the  suture;  short,  stout,  erect  bristles  are  intermixed. 
Beak  stout,  flattened,  punctured,  naked  from  the  tip  to  the  middle  (anten- 
nae not  seen).  Prothorax  wider  than  long,  narrowed  gradually  in  front, 
moderately  rounded  on  the  sides,  strongly  constricted  near  the  tip,  not  cari- 
nate, postocular  lobes  nearly  obsolete;  base  very  feebly  bisinuate,  median 
angle  very  obtuse,  indistinct.  Scutellum  hardly  visible.  Elytra  very  little 
wider  than  prothorax  at  base;  humeri  rounded,  not  prominent;  sides 
slightly  rounded,  then  obliquely  narrowed  to  the  tip;  striaj  composed  of 
large  punctures,  which  are  concealed  by  the  scales,  so  that  the  striai  appear 
to  be  fine  and  impressed.  Thighs  unarmed;  tibiae  straight;  outer  edge  an- 
gulated near  the  l)ase;  tarsi  as  in  the  preceding  species.  Body  beneath 
deeply  and  densely  punctured;  clothed  wulh  dirt  colored  scales.  Length 
2.5  mm. ;  .10  inch. 

Virginia  to  Louisiana.  I  have  adopted  the  Catalogue  name  of  Dejean  for 
tliis  very  pretty  little  species.  Col.  Molschulsky  gave  me  two  individuals 
as  his  Acalles  pictus  and  fasciculatus,  but  I  believe  that  the  names  were 
never  published.  In  generic  characters  this  species  difiers  greatly  from 
Acalles,  though  somewiiat  resembling  A.  clavatus  in  size  and  form. 

8.  O.  apiculatus  GylL,  Sch.  Cure,  iv,  121. 

Florida;  Messrs.  Hubbard  and  Schwarz.  Very  distinct  by  the  prothorax 
suddenly  and   strongly  constricted  near  the  tip,  and  by  the  erect,  stout 


LeConte.J 


CRYPTOHHYNCHINI.  255 


bristles,  or  spines  which  are  sparsely  placed  upon  the  prothorax,  and  upon 
the  alternate  interspaces  of  the  elytra.     Length  3.7  mm.;  .15  incii. 

A— b**. 

The  body  is  elongate-oval,  as  in  the  last  division,  from  which  this  diflers 
chiefly  by  the  prothorax  being  feebly  constricted  near  the  tip. 

The  beak  is  more  slender  towards  the  tip,  and  not  flattened,  about  as  long  as 
the  prothorax  and  moderately  curved ;  the  antennae  are  less  slender,  though 
the  second  joint  of  the  funicle  is  as  long  as  the  first;  the  club  is  oval,  an- 
nulated.  Prothorax  wider  than  long,  narrowed  in  front  from  the  base, 
moderately  rounded  on  the  sides,  feebly  constricted  near  the  tip,  with  dis- 
tinct postocular  lobes;  disc  strongly  carinate;  base  truncate  each  side: 
middle  lobe  acute,  very  distinct;  scutellum  indistinct.  Elytra  very  little 
wider  than  the  prothorax  at  base;  humeri  rounded,  not  very  prominent: 
sides  subsinuate,  then  narrowetl  to  the  tip;  alternate  intervals  feebly  con- 
vex, with  tufts  of  erect  bristles.  Thighs  sinuate  beneath  near  the  tip, 
armed  with  two  distinct  teeth;  tibise  slightly  curved;  very  distinctly  mucro- 
nate;  tarsi  as  in  most  of  the  other  species. 

9.  O.  tristis,  n.  sp. 

Elongate-oval,  densely  clothed  with  dark  gray  scales,  with  intermixed 
short  erect  bristles,  which  on  the  elytra  are  arranged  in  tufts  upon  the  al- 
ternate interspaces.  Beak  more  slender  at  tip,  punctured.  Prothorax 
deeply  and  densely  punctured,  strongly  carinate,  formed  as  above  described. 
Elytra  indistinctly  variegated  on  the  ground  color,  tufts  of  bristles  darker. 
Beneath  clothed  with  dirt  colored  scales,  densely  punctured.  Length  5 
mm  ;  .20  inch. 

Middle  and  Western  States.  I  have  adopted  Dejean's  name  for  this 
species. 

B. 

The  species  of  this  division  diftfer  from  all  those  above  mentioned  by  the 
elytra  more  oblong  in  form,  and  by  the  joints  of  the  funicle  of  the  an- 
tennae 3-7  being  equal  in  length,  and  gradually  wider;  the  second  joint  is 
either  nearly  as  long  as  the  first  {oblongus),  or  very  distinctly  shorter;  the 
club  is  small,  rounded-oval,  distinctly  annulated.  The  prothorax  is  rounded 
on  the  sides,  a  little  wider  than  long,  narrowed  in  front,  not  strongly  con- 
stricted, with  the  postocular  lobes  feeble;  the  disc  is  not  carinate.  Scu- 
tellum variable;  elytra  wider  at  base  than  the  prothorax,  with  the  humeri 
rounded,  not  prominent,  sides  parallel,  then  obliquely  rounded  to  the  tip: 
interspaces  somewhat  convex,  nearly  equal.  Legs  slender,  thighs  armed 
with  a  distinct  tooth  in  one  species,  which  is  obsolete  in  the  other;  tibia:- 
nearly  straight. 
Second  joint  of  funicle  scarcely  shorter  than  first;  body 

mottled  with  gray  and  brown  scales 10,  oblongus. 

Second  joint  of  funicle  much  shorter  than  first;  elytra  with 

alternate  interspaces  tessellated 11.  ferratus. 


256  CURCU  LEONIDS. 


[LeConte. 


10.  C.  oblongus,  n.  sp. 

Oblong  elongate,  black,  thickly  clothed  with  l)rown  and  gray  scales  irregu- 
larly intermixed;  back  of  head,  and  some  indistinct  lines  upon  prothorax 
pale.  Beak  as  long  as  prothorax,  rather  more  slender  than  usual,  naked, 
dark-brown,  punctured.  Antennoe  brown;  second  joint  of  funicle  nearly 
as  long  as  the  tirst,  3-7  equal  in  length,  gradually  broader  and  rounded. 
Prothorax  wider  than  long,  deeply  and  densely  punctured,  not  carinate, 
narrowed  from  the  base,  rounded  on  the  sides,  moderately  constricted  near 
the  tip,  base  each  side  truncate,  median  lobe  distinct.  Scutellum 
very  distinct,  clothed  with  brown  scales.  Elytra  one-fourth  wdder  than 
the  prothorax,  Immeri  rounded,  not  prominent;  sides  parallel,  scarcely  per- 
ceptibly sinuate,  then  obliquely  rounded  to  the  tip;  strife  composed  of  ap- 
proximate punctures,  fifth  with  a  narrow  blackish  spot  behind  the  middle, 
interspaces  convex,  equal.  Thighs  with  a  distinct  obtuse  tooth,  and  front 
pair  with  an  additional  small  denticle ;  beneath  coarsely  and  densely  punc- 
tured, thinly  clothed  with  large,  pale  scales.     Length  6  mm. ;  .23  inch. 

Georgia  and  Texas,  two  specimens.  There  are  no  bristles  intermixed 
with  the  scales. 

11.  C.  ferratus  Say,  Cure.  28:  ed.  Lee.  i.  290;  Boh.,  Sch.  Cure.  iv.  148. 
Middle,  Southern  and  Western  States.     Easily  known  by  the  small  size, 

stout  funicle,  and  alternate  elytral  interspaces  ornamented  with  pale 
spots.  The  scales  are  intermixed  with  very  short  bristles.  Say  has  des- 
cribed the  elytra  as  striate,  without  punctures,  but  the  description  of  Boh- 
eman  is  quite  correct;  the  stria;  are  as  strongly  punctured  as  is  usual  in  the 
genus,  and  when  the  scales  are  removed,  are  seen  to  be  quite  deep,  with 
convex  interspaces.     Length  3.3  mm. ;  .125  inch. 

ZASCELIS  n.  g. 

The  species  of  this  genus  are  rather  elongate  and  depressed,  coarsely 
sculptured,  pubescent,  and  sometimes  also  scaly.  The  beak  is  long,  slen- 
der, slightly  curved,  cylindrical,  and  extends  almost  to  the  metasternum. 
The  antennae  vary  with  the  species,  the  club  being  sericeous,  elongate  in 
one  species,  and  scarcely  annulated,  while  in  the  others  it  is  oval  and  an- 
nulated.  The  ventral  sutures  are  deep,  and  the  first  is  slightly  sinuate;  the 
first  ventral  segment  is  longer  than  the  second,  which  is  equal  to  the  third; 
fourth  and  fifth  are  also  equal  in  length.  The  mesosternum  is  elongate, 
and  deeply  excavated  almost  to  the  base.  The  thighs  are  rather  stout, 
armed  beneath  with  a  small  tooth,  tibit?  broad,  compressed,  with  a  row  of 
teeth  along  the  outer  margin  of  the  middle  and  hind  pairs,  which  becomes 
indistinct  in  some  species. 

This  genus  seems  to  be  allied  to  Cnemnrrjus  and  Enteles,  but  differs  (ac- 
cording to  description)  by  the  toothed  tibi«;  this  character  is  an  extremely 
rare  one  in  CurcuUonida',  and  I  find  it  mentioned  by  Lacordaire  only  in 
one  instance:  in  Cne?nidop7io)'us  which  is  allied  to  Magdalis. 

The  species  may  be  distinguished  as  folio w^s: 


LeCoiite.] 


CKYPTORHYNCHINI.  257 


A.  Pubescence  long,  not  mixed  with  scales: 

Tibiae  very  coarsely  toothed 1.  serripes. 

B.  Pubescence  shorter:  tibise  feebly  toothed: 

Pubescence  erect,  intermixed  with  large  scales. .    2.  squamigera. 
Pubescence  prostrate,  squamiform 3.  irrorata. 

1.  Z.  serripes,  n.  sp. 

Oblong  oval,  black,  clothed  with  coarse,  erect,  brown  hairs;  beak  densely 
punctured,  substriate  near  the  base,  frontal  puncture  distinct;  head  punc- 
tured. Prothorax  wider  than  long,  narrowed  in  front  from  the  middle, 
rounded  on  the  sides,  scarcely  constricted  at  tip,  whicli  is  nearly  truncate, 
postocular  lobes  feeble;  disc  densely  and  coarsely  punctured,  obsoletely 
carinate.  Scutellum  verj^  small.  Elytra  but  little  wider  than  the  protho- 
rax, truncate  at  base,  rounded  behind  the  humeri,  which  are  closely  ap- 
plied to  the  base  of  the  prothorax;  stride  deep,  coarsely  and  distinctly  punc- 
tured, interspaces  narrow  convex,  sparsel}'  punctured.  Beneath  coarsely 
punctured,  tibiae  with  a  fringe  of  marginal  bristles,  and  5-7  large,  promi- 
nent teeth;  front  tibife  obtusely  bidentate  near  the  tip;  apical  hook  distinct. 
Length  6  mm. ;  .23  inch. 

Cape  San  Lucas,  Lower  California;  Mr.  Xantus.  The  pubescence  is  very 
like  that  of  Oymnetron  teter,  but  rather  coarser.  The  funicle  of  the  an- 
tennae is  slender;  joints  1-2  equal  in  length,  club  small,  oval-acuminate 
and  annulated. 

2.  Z.  squamigera,  n.  sp. 

Larger  and  of  the  same  form  as  the  preceding,  with  the  punctures  coarser; 
the  pubescence  shorter,  and  intermixed  with  oval  yellowish  scales.  Beak 
densely  punctured,  not  striate  at  base.  Prothorax  more  rounded  on  the. 
sides,  slightly  narrowed  behind  the  middle,  finely  carinate;  elytra  with  the 
interspaces  slightly  carinate.  Tibiis  finely  serrate.  Length  7.7  mm. ;  .30 
inch . 

One  male.  Cape  San  Lucas;  Mr.  Xantus.  The  funicle  of  the  antennae  is 
slender,  the  club  elongate,  scarcely  annulated;  this  form  of  club  is  proba- 
bly a  sexual  character. 

3.  Z.  irrorata,  n.  sp. 

Elongate,  black,  pubescence  fine,  sparse,  prostrate,  subsquamiform  and 
collected  in  spots  on  the  elytra.  Beak  densely  punctured,  substriate  at  base, 
frontal  puncture  distinct,  head  punctured.  Prothorax  not  wider  than  long, 
sides  parallel  behind,  rounded  and  obliquely  narrowed  before  the  middle, 
scarcely  constricted  at  tip,  densely  and  coarsely  punctured,  with  aver}' nar- 
row, smooth  dorsal  line.  Elytra  but  little  wider  than  the  prothorax, 
rounded  just  behind  the  humeri,  then  nearly  parallel  on  the  sides;  striae 
composed  of  large  approximate  quadrate  punctures,  interspaces  narrow, 
punctured.  Thighs  armed  with  a  small  tooth;  middle  and  hind  tibiae  feebly 
serrate,  obtusely  bidentate  near  the  tip.  Body  beneath  coarsely  punctured, 
sparsely  clothed  with  pale  brown  scale-like  hairs.  Length  ."";-(>. 5  mm.; 
.20-. 25  inch. 

PKOC.   AMER.  PHILOS.  SOC.  XV.  96.  2g 


258  CURCULIONID^. 


[LeConte, 


California,  Nevada,  and  Colorado.  In  the  specimens  I  have  seen,  the 
funicle  of  the  antennas  is  less  slender  than  in  the  two  precading  species;, 
the  club  is  oval-acuminate,  small,  and  feebly  annulated.  The  legs  are  much 
less  coarsely  punctured  than  in  the  other  two  species. 

COELOSTERNUS  8ch. 

In  order  to  avoid  unnecessary  multiplication  of  genera  in  a  series  as  yet 
so  imperfectlj^  systematized,  I  refer  to  this  genus  a  single  species  from 
Lower  California,  which  is  allied  to  Zascelis,  but  has  the  beak  stoutei' 
and  less  elongated,  the  funicle  of  the  antennae  stouter,  the  club  small, 
oval-acuminate,  and  annulated.  The  legs  are  stouter,  the  thighs  armed 
with  an  acute  tooth,  the  tibiae  compressed,  not  serrate,  furnished  on  the 
outer  margin  with  a  row  of  stitl'  bristles  from  the  middle  to  the  tip,  and 
and  rather  stronglj^  unguiculate  at  the  inner  apical  angle.  The  second 
ventral  segment  is  a  little  longer  than  the  third,  but  not  very  obviously 
so. 

1.  C.  hispidulus,  n.  sp. 

Elongate,  black,  clothed  with  short,  erect  brown  hairs;  head  and  beak 
densely  punctured,  the  latter  feebly  carinate  towards  the  base.  Protho- 
rax  a  little  longer  than  wide,  broadly  and  regularly  rounded  on  the 
sides,  more  narrowed  in  front  than  at  base,  diec  rather  flattened,  coarsely 
and  densely  punctured,  with  an  obsolete  smooth  dorsal  line.  Elj'tra 
elongate-oval,  a  little  wider  than  the  prothorax,  striae  wide,  irregularly 
coarsely  punctured,  four  inner  interspaces  on  each  narrow,  elevated,  the- 
others  indistinct.  Body  beneath  and  legs  very  coarsely  punctured. 
Length  5.5  mm.;  .215  inch. 

One  specimen,  Cape  San  Lucas,  Mr.  Xantus.  A  little  more  elongate 
tlian  Zascelis  irrorata,  and  quite  easily  recognized  by  the  characters  abo-\'e 
given.  The  eyes  are  widely  separated,  and  in  repose  are  almost  con- 
cealed. 

BAROPSIS   n.g. 

The  single  species  for  which  I  propose  this  generic  name,  agrees  with 
the  two  preceding  genera  in  most  characters,  but  diffei's  essentially  in  the 
first  ventral  suture  being  more  distinctly  sinuate,  and  nearly  obliterated 
at  the  middle,  and  the  second  ventral  segment  as  long  as  the  two  follow- 
ing united.  The  beak  is  nearly  as  stout  as  in  Tyloderma,  and  the  eyes 
are  approximate  above;  the  funicle  of  the  antennae  is  slender,  7-jointed,  the 
second  joint  as  long  as  the  first;  the  following  are  shorter,  but  not  much 
thickened  ;  club  small,  oval-acuminate,  annulated.  Legs  not  very  stout, 
thighs  feebly  clavate,  armed  with  a  small  acute  tooth ;  tibiae  moderatel}'  com- 
pressed, not  as  wide  as  in  the  two  preceding  genera,  not  toothed,  terminal 
hook  small;  there  is  a  fringe  of  hair  on  the  outer  margin  towards  the  X\\), 
as  in  Ccdosternus. 

The  general  appearance  is  that  of  Tyloderma,  but  the  sculpture  resem- 
bles that  of  several  species  of  Baris.     It  is  closely  related  to  the  Mexican 


LeConte.] 


ZYGOPINI.  259 


Mcemactes,  but  differs  by  tlic  tirst  ventral  suture  Ijeing  sinuate,  and  less 
distinct  at  the  middle. 

1.  B.  cribratus,  n.  sp. 

Black,  rather  shining,  with  very  sparse  and  fine  pubescence  proceeding 
from  the  punctures.  Beak  as  long  as  the  prothorax,  stout,  not  densely 
punctured,  punctures  becoming  larger  towards  the  base;  head  sparsely 
punctured.  Prothora.x;  oval,  longer  than  wide,  broadly  rounded  on  the 
sides,  a  little  narrower  at  tip  than  base,  and  scarcely  constricted,  rather 
flattened,  very  coarsely  and  not  densely  punctured.  Elytra  elongate-oval, 
numeri  acute,  slightly  prominent  forwards;  striae  broad  and  deep,  catenate 
with  large  quadrate  punctures,  interspaces  as  wide  as  the  strise,  with  a 
row  of  distinct  distant  punctures.  Beneath  very  coarsely  and  distantly 
punctured,  punctures  of  the  3-5th  ventral  segments  smaller.  Length  4  mm. ; 
.16  inch. 

Kansas  and  Texas;  two  specimens.  A  very  distinct  and  easily  recog- 
nized species. 

Tribe  XVI.     ZTVOPIDil. 

The  form  of  these  insects  is  quite  peculiar;  the  body  is  elongate,  sub- 
rhomboidal,  the  first  and  second  ventral  segments  long,  the  remaining  ones 
short,  rarely  horizontal,  as  in  the  preceding  genera,  but  forming  an 
obliquely  ascending  surface.  The  pygidium  is  concealed  by  the  elytra  in 
our  species,  but  is  visible  in  some  foreign  genera.  The  eyes  are  large,  and 
not  concealed,  even  when  the  head  is  deflexed;  they  are  closely  approxi- 
mate on  the  front,  but  widely  distant  beneath  and  finely  granulated.  The 
1)eak  is  long  and  slender,  only  slightly  curved,  and  is  received  in  a  deep' 
prosternal  canal,  which  in  some  species  does  not  extend  upon  the  meso- 
sternum,  so  that  the  end  of  the  beak  is  free,  as  in  Conotrachelus;  even 
when,  as  in  others,  the  mesosternum  is  excavated,  the  canal  is  open  and 
not  sharply  limited  behind.  Legs  slender,  front  cox*  elongated,  and  pro- 
longed into  a  point  on  the  inner  side,  claws  simple,  divergent. 

Our  species  are  of  small  size,  and  represent  three  genera: 

Mesosternum  declivous 2. 

excavated PIAZURUS. 

2.  Ventral  surface  obliquely  ascending OOPTURUS. 

nearly  horizontal ACOPTUS. 

PIAZURUS   Sch. 

I  refer  to  this  genus  three  small  species  which  ditter  from  Copturus  not 
only  by  the  excavated  mesosternum,  but  by  the  thighs  being  armed  be- 
neath with  a  small  but  distinct  tooth.  The  scales  are  smaller  than  in  Cop- 
turus,  and  some  of  them  are  elongate.  Tiie  elytra  in  well  preserved  spe- 
cimens are  marked  with  a  sutural  common  white  si)ot  behind  the  middle, 
though  in  P.  suhfuaciatus  this  spot  is  mucli  less  conspicuous. 


260  CURCULIOXID^. 


[LeConte. 


Protliorax  about  as  long  as  wide;  elytral  white  spot 
conspicuous  ; 

Elytra  but  little  wider  than  protliorax 1.  californicus. 

Elytra  much  wider  than  protliorax 2.  oculatus. 

Protliorax  conspicuously  wider  than  long.      Elytra 
xnucli  wider  than  protliorax 3.  subfasciatus. 

1 .  P.  californicus,  n.  sp. 

Elongate-oval,  black,  above  irregularly  clothed  with  narrow  fulvous 
scales,  mixed  at  the  sides  of  the  protliorax  with  white;  scutellum  black; 
■elytra  with  a  common  sutural  spot  behind  the  middle,  extending  to  the 
"secoiKl  stria,  and  a  few  scattered  dots  white.  Beak  rather  stout,  finely 
punctured,  feebly  carinate  near  the  base;  front  very  narrow;  eyes  bordered 
behin-d  with  pale  scales.  Protliorax  not  wider  than  long,  gradually  nar- 
rowed from  base  to  tip,  sides  straight;  disc  coarsely  densely  punctured,  dis- 
tinctly carinate.  Elytra  very  little  wider  than  the  protliorax,  elongate, 
humeri  oblique,  striae  well  impressed,  interspaces  flat,  finely  punctured. 
Beneath  clothed  with  dirty  gray  scales;  thighs  distinctly  toothed,  hind  pair 
with  a  black  ring;  tibiai  with  a  small  terminal  hook;  ungues  very  small. 
Length  3  mm. ;  .  13  inch. 

Calaveras,  California;  Mr.  Crotch.  More  elongate  than  the  other  two 
species,  and  resembling  in  form  Copturus  operculatu»,  though  smaller. 

2.  P.  oculatus.  Cryptorhynchus  ocul.  Say,  Journ.  Ac.  Nat.  Sc.  iii, 
308;  ed.  lee.  ii,  173;  Copturus  nanus\  Dej.  Cat. 

Southern  and  Western  States.  The  sutural  white  spot  is  small  and  ex- 
tends only  to  the  first  stria.  The  upper  surface  is  thinly  clothed  with  ful- 
vous hair-like  scales,  and  only  slightly  mottled.  The  protliorax  is  nearly 
as  long  as  wide,  slightl}^  rounded  on  the  sides.  The  elj'tra  are  suddenly 
one-third  wider  than  the  protliorax  and  narrowed  behind.  Length  3  mm. ; 
-.13  inch. 

•3.  P.  suMasciatus,  n.  sp. 

Ratlier  stout  in  form,  black,  thinly  and  irregularly  clothed  with  fine  white 
hair-like  scales,  forming  transverse  bands  on  the  elytra;  the  white  spot  is 
therefore  not  A^ery  conspicuous.  Beak  brown,  outer  half  nearly  smooth, 
base  punctured  and  striate;  antennae  testaceous,  front  very  narrow.  Pro- 
thorax  about  twice  as  wide  as  long,  narrowed  gradually  from  the  base, 
sides  feebly  rounded  behind,  and  very  slightly  sinuate  near  the  tip;  very 
coarsely  and  densely  punctured,  not  carinate;  the  white  scales  are  thinly 
placed,  and  form  three  broad  vittse.  Elytra  near  the  base  about  one-third 
Tvider  than  the  protliorax,  humeri  more  rounded  and  less  prominent  than 
in  P.  ocularis;  narrowed  Ijehind,  stri*  wide,  deep,  punctured,  interspaces 
narrow,  with  lines  of  white  pubescence,  so  interrupted  as  to  produce  three 
transverse  bands;  one  basal,  surrounding  a  humeral  dark  spot,  one  behind 
the  middle,  and  one  near  the  tip;  these  bands  are  also  connected  along  the 
suture,  and  at  other  places.     Beneath  thinly  clothed  with  gray  scales. 


LeConte.] 


ZYGOPIiN^I.  261 


thighs  acutely  toothed,  liind  pair  with  an  indistinct  dark  band.     Length  1.7 
mm.;  .07  inch. 

New  York,  one  specimen;  Mr.  Guex.  A  peculiar  species,  somewhat 
suggestive  of  Ceutorhynchus.  The  elytral  strise  are  so  wide  and  deep,  that 
tlie  pattern  which  is  formed  by  white  hairs  on  the  interspaces  seems  to 
he  made  up  of  sets  of  very  fine  wliite  lines. 

OOPTURUS  Sch. 

The  species  belonging  to  our  tauna  are  small  and  elongate,  witli  the 
elytra  only  a  little  wider  than  the  prothorax.  They  differ  from  the  typical 
species  of  tropical  America  by  the  femoi'a  being  not  armed  with  a  tooth. 
We  have  seen  already  in  many  genera  that  this  character  is  quite  unim- 
portant, and  I  consider  it  unworthy  of  even  subgeneric  distinction. 
Our  species  may  be  thus  tabulated: 

Second  joint  of  funicle  longer  than  third 2. 

"     not       "  •'     lO. 

2.  Front  moderately  narrow 3. 

' '    very  narrow,  linear 9. 

8.  Mottling  of  upper  surface  not  very  distinct 4- 

"  "  "      very  conspicuous 5; 

4.  Larger,  less  densely  clothed  with  scales 1.  operculatus. 

Smaller,  more     "        "  "  "     2,  nanulus. 

5.  Elytra  with  white  markings 6. 

"      each  with  a  large  dark  spot 7.  binotatus. 

(5.  Prothorax  coarsely  punctured 7. 

' '             finely  punctured 6.  longulus. 

7.  Body  more  slender 8, 

Body  rather  stout;  each  elytron  with  a  conical  pro- 
cess at  tip ; 3.  mammillatus. 

8.  Protliorax  less  narrowed  in  front 4.  adspersus.* 

"  less  elongate,  more  suddenly  narrowed 

in  front 5.  quercus. 

9.  Elytra  with  fulvous  scales  and  an  oblique,  dark, 

curved  band 8.  lunatus. 

10.  Very  small,  elytra  In-own  with  white  markings 9.  minutus. 

1.  O.  operculatus  Gyll.,  Sch.  Cure,  iv,  648  ;  Cryptorhynchus  opevc. 
Say,  Journ.  Ac.  Nat.  Sc.  Pliila.  iii,  308;  ed.  Lee.  ii,  172. 

Western  and  Southern  States.  Tlie  typical  form  is  of  larger  size  (4  mm. ; 
.10  inch)  than  our  other  species,  with  the  scales  not  very  dense  upon  the 
elytra,  so  that  the  striae  are  plainly  seen;  the  spo's  of  paler  scales  are  few, 
and  not  conspicuous. 

2.  C.  nanulus,  n.  sp. 

This  species  agrees  with  tlie  preceding  in  form,  color  and  sculpture,  but 
is  very  much  smaller,  the  prothorax  seems  a  little  more  elongate,  and  the 

*  I  have  some  doubts  as  to  the  specific  difference  between  C.  quercus  and  ad- 
spersus.  but  for  the  present  it  seems  more  prudent  to  consider  them  as  dis- 
tinct. 


262  CUKCULIOXID^. 


[Le(.'onte. 


sides  are  slightly  rounded  near  the  base;  the  scales  of  the  elj'tra  are  com- 
paratively larger  and  denser.,  and  there  is  no  distinct  pattern  of  paler  spots. 
Length  2.3  mm. ;  .09  inch. 

Georgia,  Illinois  and  Texas.  The  paler  scales  in  well-preserved  individ- 
uals are  condensed  so  as  to  give  the  appearance  of  three  vittse  on  the  pro- 
thorax,  and  to  leave  two  faint  dark  clouds  on  each  elytron,  one  about  the 
middle,  the  other  near  the  tip,  separated  l)y  a  sutural  line  and  limited  l)y 
pale  bands. 

3.  C  mammillatus,  n.  sp. 

As  large  as  the  largest  specimens  of  C.  operculatus,  but  distinctly  broader; 
black,  clothed  with  large  oval  scales  of  a  light  and  dark  brown  color.  Beak 
densely  punctui'ed,  subcarinate;  front  half  as  wide  as  the  beak.  Prothorax 
not  wider  than  long,  sides  feebly  rounded,  narrowed  near  the  \i\),  and 
rather  strongly  constricted;  coarsely  and  densely  punctured,  with  a  large 
subquadrate  spot  of  white  scales  at  the  hind  angles.  Elytra  slightly  rounded 
on  the  sides,  suddenlj-  sinuate  near  the  tip,  and  then  broadly  rounded;  the 
tips  are  separately  thickened  and  produced  into  a  stout,  conical,  ascending 
process;  the  striae  are  punctured  as  usual,  and  the  interspaces  feebly  con- 
vex; the  color  is  mottled,  pale  and  dark  brown  and  white.  Beneath  the 
metaslernum  and  first  and  second  ventral  segments  are  covered  with  pale 
scales,  the  rest  darker;  second  ventral  with  two  tubercles  near  the  posterior 
margin,  about  as  distant  from  each  other  as  from  the  side.  Length  4.1 
mm.;  .16  inch. 

Southern  California;  one  specimen  collected  by  Mr.  Hardy,  and  kindly 
given  me  by  Dr.  David  Sharp.  The  white  spots  of  the  elytra  are  as  fol- 
lows :  a  small  dot  at  the  base  of  the  sixth  interspace;  a  transverse  spot  on 
the  second  and  third  interspaces,  one-fourth  from  the  base;  immediately 
behind  this  spot  is  a  large,  dark  space;  a  smaller  transverse  spot  behind 
the  middle;  a  large  lateral  spot  opposite  the  first  ventral  segment,  and  an 
adjoining  small  spot  on  the  seventh  interspace;  the  apical  edge  is  also 
clothed  with  whitish  scales. 

4.  C  adspersus,  n.  sp. 

Elongate,  black,  beneath  densely  clothed  with  dirty  Miiite  scales,  above 
with  ochreous  scales,  varied  with  dark  brown  and  white  spots.  Head  and 
front  as  in  G.  operculatus;  antenn*  pale  testaceous,  second  joint  of  funicle 
longer  than  the  third.  Prothorax  longer  than  wide,  narrowed  and  feebly 
constricted  near  the  tip;  surface  coarsely  and  densely  punctured,  scales 
large,  rounded,  concealing  the  punctures,  the  white  spots  are  three  at  the 
base  and  three  at  the  tip,  indicating  thus  three,  more  or  less  interrupted 
white  vittse.  Elytra  Avith  well  marked  punctured  strife,  and  flat  inter 
spaces;  white  marks  conspicuous,  indicating  an  annular  basal  mark,  com- 
posed of  small  spots,  then  a  long  sutural  line,  and  two  oblique,  interrupted 
bands  behind  the  middle.  Hind  thighs  with  an  indistinct  band.  Length 
3.3  mm.;  .13  inch. 

Texas;  four  specimens.     The  scales  are  as  large  as  in   C.  operculatus. 


]iC<  'ontC'.J 


zYCiOPiNi.  263 


A  specimen  from  Owen's  Valley,  Calitorniii  (Dr.  Horn),  is  much  less  con- 
spicuously colored. 

5.  C.  quercus  Gyll.,  Sch.  Cure,  iv,  650;  Zygops  querelas  Say,  Cure.  20; 
ed.  Lee.  i,  286. 

Middle  States;  two  specimens.  The  antennae  in  this  species  are  dark  or 
piceous;  the  scales  are  smaller  than  in  C.  operculatus.  The  prothorax  is 
less  elongate,  and  is  rather  suddenly  narrowed  near  the  tip;  it  is  coarsely 
punctured  and  marked  with  three  white  basal  spots,  the  side  ones  being 
larger.  The  elytral  pattern  seems  to  l)e  the  same  as  in  C.  adspersus,  but  is 
partly  abraded  in  m}' specimens,  and  it  apparently  difl'ers  from  that  species 
chietly  by  the  darker  antenuse  and  less  elongate  prothorax. 

').  C.  longulus,  n.  sp. 

Elongate,  brown,  beneath  densely  clothed  with  white  scales,  head  and 
base  of  beak  also  densely  clothed  with  white  scales;  front  narrower  than 
in  C.  operculatus;  beak  rather  stout,  black,  nearly  smooth;  antenme  pale 
testaceous,  second  joint  of  funicle  longer  than  third.  Prothorax  evi- 
dently longer  than  wide,  scarcely  narrowed  in  front,  feebly  constricted 
near  the  tip,  rather  finely  granulato-punctate,  with  three  small  basal,  and 
two  discoidal  spots  of  white  scales.  Elytra  densely  clothed  with  In'own 
scales  and  a  pattern  of  white  markings,  consisting  of  an  irregular  oblique 
band  from  the  humerus  to  the  middle,  and  a  less  oblique  one  behind  the 
middle,  united  with  the  former  at  the  suture;  there  are  also  scattered  dots 
of  white  scales.  Legs  banded  and  speckled  Avith  brown.  Length  2.3  mm., 
.09  inch. 

California  (Geysers),  and  Utah  ;  Canada,  Pettit.  The  scales  of  this 
are  much  smaller  than  in  the  preceding  and  following  species. 

7,  O.  binotatus,  n.  sp. 

Black,  densely  clothed  with  dark  gray  scales,  which  are  small  on  the 
prothorax,  and  large  on  the  elytra,  upon  each  of  which  is  a  very  large  sub- 
quadrate,  blackish  brown  spot.  Head  and  base  of  beak  clothed  with  scales; 
beak  and  antenna?  black;  front  narrower  than  in  C.  operculatus.  Protho- 
rax scarcely  longer  than  wide,  slightly  narrowed  in  front,  verj-  feebly  con- 
stricted near  the  lip,  densely  and  deeply  punctured,  punctures  concealed  by 
small  rounded  gray  scales.  Elytra  with  deep  punctured  striae  and  some- 
what convex  interspaces,  densely  covered  with  larger  rounded  gray  scales; 
each  with  a  large  spot,  covered  with  dark  brown  scales,  occupying  nearly 
the  middle  third  of  the  surface,  and  extending  from  the  first  or  second  stria 
to  the  eighth.     Length  2.5  mm.;  .10  inch. 

Pennsylvania  and  Texas;  two  specimens. 

H.  C  lunatus,  n.  sp. 

Blackish  brown,  head  and  base  of  beak  clothed  with  white,  hair-like  scales, 
beak  more  slender  than  usual,  smooth,  front  very  narrow,  linear;  antennae 
nearly  l)lack,  second  joint  of  funicle  longer  than  third.  Prothorax  longer 
than  wide,  slightly  and  gradually  narrowed  in  front,  sides  scarcely  rounded; 


264  CUKCULIOXID^E. 


[LeConte. 


coarsely  and  densely  punctured,  clothed  with  large  brown  scales,  and 
sprinkled  with  paler,  with  two  large  basal  spots  of  dirty  white.  Elytra 
with  deep  punctured  striae,  clothed  with  yellow  and  gray  scales,  with  a 
curved  band,  extending  from  the  humeri  to  behind  the  middle,  then  curv- 
ing forwards  and  meeting  the  suture  at  the  middle,  thus  forming  on  each 
an  oblique  lunule  of  dark  brown.  Beneath  densely  clothed  with  large, 
yellowish  and  grayish  scales,  legs  slightly  speckled  with  dark;  thighs  as  in 
the  other  species,  unarmed.     Length  2..j  mm.;  .10  inch. 

California;  one  specimen,  collected  by  W.  H.  Pease,  probably  at  San 
Francisco. 

9.  O.  minutus.  Eccoptus  minutus  Lee,  Ann.  Lye.  Nat.  New  York,  i,. 
171,  pi.  11,  fig.  8. 

Easily  known  by  the  small  size  and  difierent  style  of  coloration,  which  is 
Avell  represented  in  the  figure  given  by  my  father,  as  above  cited. 

The  beak,  antennae,  legs  and  elytra  are  reddish  brown,  the  latter  with 
deep  striae,  and  lines  of  white  narrow  scales,  forming  a  broad  basal  band, 
an  oblique  band  behind  the  middle,  and  a  narrow  apical  margin;  the  suture 
is  also  white,  but  interrupted  about  the  middle.  Beneath  and  legs  rather 
thinly  clothed  with  narrow  white  scales.  The  head  and  prothorax  are 
darker  than  the  elytra,  the  latter  is  deeply  punctured,  with  a  lateral  vitta 
and  a  small  ante-scutellar  spot  of  white  scales.  The  eyes  are  very  large, 
the  front  extremely  narrow.     Length  2  mm. ;  .08  inch. 

Southern  States.  Difl'ers  from  all  the  preceding  by  the  second  join!  of 
the  funicle  of  the  antennae  not  longer  then  the  third. 

AOOPTUS  n.  g. 

This  genus  differs  from  Copiunis  1)y  the  ventral  surface  being  nearly 
horizontal,  the  segments  much  less  unequal,  and  the  sutures  nearly  straight, 
as  in  Zygops.  It  is  essentially  difl^erent  from  that  genus  by  only  the  first 
joint  of  the  funicle  of  the  antennse  being  elongated,  and  by  the  pygidium 
being  covered  by  the  elytra.  The  mesosternum  is  long,  flat,  and  slightly 
declivous. 

The  second,  third  and  fourth  ventral  segments  are  nearly  equal,  and  the 
fifth  is  sliglitly  longer,  and  broadly  impressed  in  the  specimen  examined. 

1.  A.  suturalis,  n.  sp. 

Elongate,  subcylindrical,  black,  sprinkled  with  small  whitish  scales,, 
forming  two  very  indefinite  bands  upon  the  elytra.  Beak  as  long  as  the 
prothorax,  cylindrical,  curved,  punctured,  slightly  carinate  l^ehind,  without 
scales,  except  at  the  base;  eyes  very  large,  front  extremely  narrow,  linear; 
head  clothed  with  scales.  Prothorax  wider  than  long,  slightly  rounded  on 
the  sides,  narrowed  in  front,  where  it  is  broadly  constricted;  densely  punc- 
tured; dorsal  line  elevated,  reaching  neither  base  nor  tip.  Elytra  a  little 
wider  than  the  prothorax,  impressed  near  the  base;  striae  deep,  interspaces 
flat,  densely  punctured;  scales  scattered,  more  condensed  in  two  transverse 
bands,  in  front  and  behind  the  middle;  scutellum  and  sutural  line  as  far  as 


LeConte.J 


TACHYGONINI.  265 


one-fourth  the  length,  densely  clothed  with  while  scales;  legs  slender, 
sparsely  clothed  with  scales;  thighs  feebly  toothed,  the  hind  pair  more 
distinctly;  antennae  black,  rather  stout,  first  joint  only  of  funicle  elongated. 
Length  3.8  mm. ;   .15  inch. 

New  York;  several  specimens  in  Mr.  Dike's  collection,  of  which  he  hat- 
kindly  given  me  one. 

Tribe  XVII.     xAt'HYGO^flNi. 

This  tribe  contains  a  few  small  species,  which  in  form  and  characters  are 
among  the  strangest  insects  of  the  family.  The  body  is  broadly  ovate,  rather 
depressed  above,  and  ornamented  with  tufts  of  hair;  the  prothorax  is  com- 
paratively small,  much  narrowed  in  front.  The  head  is  small,  the  eyes 
large,  and  the  front  very  narrow,  as  in  Zygopini;  the  beak  is  rather  short 
and  stout,  as  in  certain  CeutorhyncJdni,  and  retracted  upon  the  prosteruum. 
but  the  antennae  are  straight,  inserted  near  the  base  of  the  beak,  not  genicu- 
late, and  the  first  joint  (scape),  is  no  longer  than  the  second;  this  is  followed 
by  five  short  joints,  gradually  increasing  in  width;  the  club  is  elongate-oval, 
distinctly  annulated.  The  front  coxae  are  sub-conical,  prominent  and  widely 
separated,  so  as  to  leave  a  space  in  which  the  beak  rests  when  retracted. 
The  middle  coxae  are  about  three  times  more  separated  than  the  front  coxtv. 
and  the  mesosternum  is  very  short,  transverse,  and  perpendicular  to  the 
general  surface  of  the  metasternum,  which  is  still  wider.  The  side  pieces 
of  the  mesosternum  are  large  and  distinct,  those  of  the  metasternum  are 
narrow.  The  hind  coxae  are  oval,  more  widely  separated  than  in  any 
other  tribe  known  to  me,  and  near  the  side  margin  of  the  elytra.  The  first 
and  second  ventral  segments  are  very  large  and  connate;  the  third  and 
fourth  very  short;  the  fifth  is  nearly  as  long  as  the  second,  rounded  behind. 
The  pygidium  is  exposed,  and  suddenly  declivous  at  tip,  presenting  the  ap- 
pearance of  an  anal  segment  in  both  sexes.  The  front  and  middle  legs  are 
slender  and  moderate  in  length,  the  tibiae  armed  with  a  terminal  hook; 
the  third  joint  of  the  tarsi  is  very  widely  dilated,  the  fourth  joint  as  long  as 
the  first,  with  divaricate  and  appendiculate  ungues.  The  hind  legs  are 
much  longer  and  stouter,  so  as  to  clasp  the  leaves  upon  which  the  insect 
rests. 

The  geographical  distribution  is  remarkable;  a  few  species  of  Tacliygomis 
in  America;  one  species  of  Dinorhopala  in  Birmah.  This  feet,  and  the 
extraordinary  characters  aliove  detailed,  indicate  the  preservation  of  an  an- 
cient form,  which,  although  having  the  affinities  I  have  mentioned,  is 
equally  out  of  place  in  any  position  in  a  linear  arrangement. 

TAOHYGONUS  Sch. 

The  characters  of  this  genus  are  sufficiently  exposed  in  the  description 
of  the  tribe.     Our  species  are  four,  which  may  be  thus  distinguished: 

A.  Hind  thighs  armed  with  several  long,  acute  spinules  or  teeth;  hind  tib- 
iae flattened  and  curved,  feebly  toothed  on  outer  margin. 

PROC.  AMEB.  PHILOS.  SOC.  XV.  96.  2h 


266  CURCULIONID.^.  [LeConte. 

Pubescence  gray-brown  and  black,  tufted 1.  Lecontei. 

B.  Hind  thighs  less  strongly  toothed,  hind  tibiae  slender. 

Black,  thinly  pubescent  with  stitf,  erect  hair;  a 
white  sutural  spot  near  the  middle 2.  centralis. 

Pale  brown,  varied  with  dusky,  elytra  with  four 
black  spots,  pubescent  with  erect  hair,  and  with  a 
central  white  sutural  spot;  hind  legs  dark 3.  tardipes. 

Smaller,  brown,  varied  with  dusky;  elytra  with  a 
more  elongate  white  sutural  spot ;  hind  legs 
brown 4.  fulvipes. 

1.  T.  Lecontei  Gyll.,  Sch.  Cure,  i,  312;  Sturm,  Cat.  1843,  352;  pi.  G,  f.  1; 
Zimm.,  Germ.  Zehschr.  ii,  455,  (habits);  T.  horridus  Chew-,  Guer.  Icon. 
Regne  An.  155,  pi.  38,  f.  9. 

Maryland,  southward  to  Texas;  found  on  the  leaves  of  j'oung  oaks,  on 
the  under  surface  of  which  the  insect  sits,  and  falls  to  the  ground  when 
approached,  as  observed  by  Zimmermann.  The  hind  legs,  though  long 
and  powerful,  are  not  saltatorial,  as,  indeed,  is  evident  from  their  form 
and  position;  but  being  widely  separated,  and  capable  of  lateral  exten- 
sion, they  give  to  the  insect  a  grasping  power  which  is  very  great  in 
proportion  to  its  small  size.  The  curious  movements  in  which,  when 
about  to  alight  it  turns  itself  back  downwards,  and  seizes  the  leaf  with 
the  elongated  curved  hind  legs,  are  very  well  described  by  Zimmer- 
mann, in  the  passage  above  cited. 

2.  T.  centralis  Lee,  Trans.  Am.  Ent.  Soc.  ii,  55. 

Raton  Mountain,  Colorado,  on  Bhus  aromaticum.      The    hind    thighs 
are  rather  serrulate  than  toothed,  the    hind  tibitB   are  straight,   not  flat- 
tened.    The  color  is  uniform  black,  the  elytral  stria?  are  somewhat  con 
fused,  and  the  white  spot  is  verj'  small. 

3.  T.  tardipes,  n.  sp. 

Pale  brown,  head,  middle  of  prothorax,  liody  beneath,  hind  legs  in  part, 
scutellum,  and  four  large  spots  on  the  elj'tra,  blackish.  Body  above 
thinly  clothed  with  long,  erect,  gray  hairs;  prothorax  not  densely  punc- 
tured, with  a  tuft  of  tine,  soft,  whitish  hair  at  the  basal  angles.  Elytra 
with  rows  of  deep  subquadrate  punctures,  interspaces  narrow  convex; 
with  an  angulated  sutural  spot  in  front  of  the  middle,  of  soft,  white  hair, 
and  a  few  scattered  small  tufts  of  the  same;  each  elytron  with  a  large, 
dusky  spot  on  the  humerus,  and  a  smaller  round  one  near  the  tip.  Be- 
neath strongly  punctured,  pubescent  with  erect  hair,  sides  of  trunk  with  a 
line  of  soft,  whitish  hair.     Length  2.3  mm. ;  .09  inch. 

Texas;  one  specimen  given  me  by  Mr.  W.  Jiilich;  one  also  in  the  col- 
lection of  Dr.  Horn.  The  hind  thighs  are  blackish,  finely  subserrate  be- 
neath; the  hind  tibia?  are  longer  than  the  tarsi,  pale  towards  the  tip,  not 
flattened,  slightly  curved,  finely  subserrate  on  the  outer  side;  tarsi  brown. 

4.  T,  fulvipes,  n.  sp. 

Brown,   feet  uniform  reddish  testaceous.      Body  above  thinly  clothed 


LeConte.l 


CEUTORHYNCHINI.  267 


with  long,  erect,  gray  hairs;  prothorax  sparsely  and  coarsely  punctured, 
with  a  tuft  of  white  hair  at  the  basal  angles.  Elytra  with  regular  stria^ 
composed  of  large  punctures;  interspaces  narrower  than  in  T.  tardives;  an 
elongate  sutural  spot  of  wliite  hair  in  front  of  the  middle.  Hind  thighs 
with  about  four  small  teeth  on  the  under  side;  hind  tibiae  comparatively 
sliorter  than  in  T.  tardipes,  not  serrate  on  the  outer  edge.  Length  1.8  mm. ; 
.07  inch. 

Illinois;  Dr.  Horn.  Smaller  than  the  smallest  T.  centralis,  with  the 
I'ows  of  elytral  punctures  more  regular,  and  the  white  spot  more  elon- 
gated. 

Tribe  XVIII.      CEUTOKHYKfCHIXl. 

This  numerous  tribe  consists  of  small  species  of  broad  form,  with  the 
beak  and  pectoral  groove  varying  according  to  genus.  They  are  distin- 
guished from  all  the  preceding  tribes  Avith  distant  front  coxfe,  by  the 
pygidium  being  perpendicularly  detlexed,  and  marked  with  a  deep  excava- 
tion (Mononychus),  or  with  a  continuation  of  the  acute  lateral  margin  of 
the  ventral  segments,  against  which  the  apical  margin  of  the  elytra  rests. 
In  the  latter  case,  the  upper  part  of  the  dorsal  segment  is  finely  carinate; 
in  both  cases,  the  anal  segment  of  the  (^  extends  in  front  of  the  excavation 
or  transverse  line.  In  all  the  genera  the  coriaceous  sutural  margin  of  the 
left  elytron  is  much  wider  than  in  any  genera  of  tlie  Cryptorhynchoid 
series,  including  Zygopird. 

The  antenna'  are  geniculate  as  usual,  inserted  about  the  middle  of  tlie 
beak;  the  funicle  is  6-7-jointed,  and  the  club  oval-pointed,  pubescent  and 
annulated.  The  side  pieces  of  the  mesostcrnum  are  usually  visible  from 
above. 

They  may  be  divided  into  four  groups,  the  first  of  which  indicates  more 
properly  a  sub-tribe. 

A.  Pygidium  without  transverse  line  for  reception  of  tij) 

of   elytra;    pectoral  groove  extending  upon   the 

metasternum ...  Mononycbi. 

B.  Pygidium  with  line  for  reception  of  tip  of  elytra, 

and  carinate  in  front  of  the  line: 
Pectoral  groove,  extending  behind  the  prosternum. .  Coellodes. 

Pectoral  groove  anterior,  sometimes  eflfaced. 

Beak  long  and  slender €eutorbyiiobi. 

Beak  stout,  usually  short . .  ^ Pbytobli- 

Group  I.      Mononycbl. 

A  single  genus  constitutes  this  tribe.  The  species  are  of  broad  form,  and 
larger  than  any  others  in  the  tribe,  and  are  easily  distinguished  by  the  pygid- 
ium not  being  carinate  in  front,  and  with  no  transverse  line  for  the  reception 
of  tlie  tip  of  the  elytra;  the  declivous  exposed  portion  is,  however,  gibbous 
at  the  upper  part,  surrounded  witli  an  impression,  distinctly  margined  in 
the  male:  in  the  female  there  is  a  small,  very  deep  excavation,  surrounded 


208  CUKCULIONID.T^.  [LeLonte. 

by  a  thickened  margin.  The  eyes  are  partially  covered  when  the  head  is 
deflexed,  and  the  beak,  which  is  long  and  cylindrical,  rests  in  a  deep 
groove  extending  through  the  pro-  and  mesosternum,  into  the  metaster- 
num,  where  it  is  sharply  limited.  The  side  pieces  of  the  meso-  and  meta- 
sternnm  are  very  large.  The  ventral  sutures  are  curved  at  the 
sides;  the  first  segment  is  as  long  as  the  metasternum,  the  second  is  shorter, 
third  and  fourth  together  equal  to  the  second;  fifth  nearly  as  long  as  the 
first,  truncate  and  impressed  in  the  male.  Legs  slender,  thighs  slightly 
clubbed,  tibiae  obliquely  fringed  at  the  tip,  terminal  hook  very  small  at  the 
inner  angle.  Tarsi  with  the  third  joint  very  broad,  bilobed;  fourth  joint 
small,  with  a  single  claw. 

MONONYCHUS  Germ. 

The  genus  is  suflaciently  defined  by  the  characters  of  the  group.  One 
species  occurs  in  our  fauna;  otherwise  it  is  represented  by  six  species  in 
Europe,  Northern  Asia,  and  one  in  the  Canary  Islands. 

1.  M.  vulpeculus  Boh.,  Sch.  Cure,  iv,  309;  Ilhynchoinuii  vulp.  Fabr., 
Syst.  El.  ii,  450;  Oliv.,  Ent.  v.  No.  83,  139,  pi.  29,  f.  437;  Say,  Cure.  20; 
ed.  Lee.  i,  286  (habits) . 

Canada  to  Georgia,  on  Iris.  Say  states  that  it  also  occurs  on  the  flowers 
of  Ceanothus  americanus,  and  Verhascum  tluvpsm  in  July. 

Group  II.     €oellocles. 

In  the  species  of  this  group  the  eyes  are  partially  covered  hy  postocular 
l<^bes,  when  the  head  is  deflexed,  and  the  pectoral  groove  extends  into  or 
beyond  the  mesosternum,  the  beak  is  long  and  cylindrical.  The  side  pieces 
of  the  meso-  and  metasternum  are  large  and  wide.  The  ventral  sutures 
are  curved,  and  the  first  is  as  deeply  impressed  as  the  others;  the  second 
segment  is  shorter  than  the  first;  third  and  fourth  still  shorter,  fifth  nearh- 
as  long  as  the  first.  The  pygidium  is  perpendicularly  deflexed,  marked 
with  an  elevated  angulated  line  for  the  reception  of  the  tips  of  the  elytra, 
in  front  of  which  it  is  carinated.  The  third  joint  of  the  tarsi  is  very  broad 
and  bilobed,  the  fourth  is  as  long  as  the  first,  with  two  claws,  which  are 
cleft,  or  toothed. 

The  following  genera  are  represented  in  our  fauna: 

Tibiae  flattened,  toothed  on  the  outer  side 2. 

"    slender,  not  dilated  nor  grooved 3. 

2.  Pectoral  groove  extending  to  the  metasternum CRAPONIUS. 

"        not  extending  to  the  metasternum  CNEMOGrONUS. 

3.  Body  broadly  ovate,  elytra  suddenly  wider CCELIODES. 

"    pyriform,  elytra  gradually  wider AOALLODES. 

CRAPONIUS  n.  g. 

A  single  species  which  dift'ers  remarkably  from  Goeliodes  by  the  tibite 
being  flattened,  dilated,  angulated  on  the  outer  margin  near  the  base,  and 
broadly  grooved  externally  for  the  partial  reception  of  the  tarsi.   It  has,  in 


LeConte.] 


CEUTORHYNCHINI.  2G9 


addition,  the  pectoral  groove  prolonged  to  the  posterior  margin  of  the 
metasternum.  The  funicle  of  the  antennae  is  slender,  and  consists  of 
seven  joints,  of  which  the  second  is  as  long  as  the  three  following.  Tlie 
claws  are  armed  with  an  acute  tooth,  half  as  long  as  the  claw. 

1.  C.  insequalis.     CexitorliyncMis  tnceq.  Say,  Cure.  20;  ed.  Lee.  i,  286. 

Middle,  Southern  and  Western  States.  Easily  known  by  the  broad 
form  and  dark  color;  the  prothorax  has  four  large  tubercles,  of  which  the 
outer  ones  are  acute;  the  dorsal  canal  is  prolonged  to  the  apical  margin, 
which  is  slightly  emarginated  thereby.  The  alternate  interspaces  of  the 
elytra  are  more  elevated  and  somewhat  uneven,  as  in  certain  Conotracheli. 
Length  2.7  mm.:  .11  inch. 

CNEMOGONUS  n.  g. 

Tlie  tibi«  of  one  species  are  so  ditlerent  from  those  of  the  other  Cceliodes, 
that  I  am  obliged  to  regard  it  as  a  separate  genus.  They  are,  namely, 
much  flattened  and  dilated  externally,  so  as  to  form  a  large  angle  near  the 
knee.  The  outer  apical  angle  of  the  front  tibise  is  prolonged  in  a  toothed 
process,  as  in  Cceliodes,  and  the  other  tibise  are  obliquely  truncate  and 
fringed  externally.  In  other  respects  this  genus  agrees  with  Cceliodes;  the 
pectoral  groove  is  not  prolonged  into  the  metasternum,  as  in  Craponius,  nor 
are  the  tibiee  grooved  externally  for  the  reception  of  the  tarsi.  The  thighs 
are  not  toothed,  and  the  claws  are  armed  with  a  short  tooth,  not  cleft,  as  in 
Cceliodes, 

C.  epilobii.  Cure,  epilobii  Fayk.,  Faun.  Suec.  iii,  259;  RhynrJmnus  ep. 
Gyll.,  etc.;  Cceliodes  ep.  Gyll.,  Sch.  Cure,  iv,  288,  &c. 

Widely  diffused  in  Europe,  from  Scandinavia  to  Austria.  I  have  a  spec- 
imen from  Great  Slave  Lake,  and  one  from  British  Columbia,  which  seem 
to  be  the  same.  Apart  from  the  generic  characters  above  given,  this  spe- 
cies is  easily  known  by  the  interspaces  of  the  elytra,  rough  with  small 
acute  tubercles  ;  near  the  base  there  is  a  small  cruciform  white  spot, 
formed  by  the  junction  of  a  short  sutural  line  with  a  transverse  one,  which 
<ixtends  to  the  third  stria.     Length  3.2  mm. ;  .125  inch. 

CCELIODES  Sch. 

In  this  genus  the  tibiae  are  slender,  not  flattened  nor  toothed  on  the  outer 
margin,  but  the  front  pair,  in  some  species,  are  prolonged  at  the  outer 
apical  angle  into  a  short  process,  which  is  toothed  on  the  lower  edge.  The 
pectoral  groove  extends  as  ftxr  as,  but  not  upon,  the  metasternum.  The 
claws  are  nearly  cleft,  the  inner  parts  being  almost  contiguous,  as  in  most 
species  of  Anthonomus. 

A.  Front  tibise  prolonged  outwards  at  tip:  thighs  unarmed. 

Interspaces  of  elytra  convex 1-  curtus. 

Interspaces  of  elytra  flat 2.  acephalus. 

B.  Front  tibiae  not  prolonged  at  tip:  tliighs  unarmed. 

Elytra  with  rows  of  acute  tuljercles 2. 


270  CLTRCULIONID^. 


[LeCoute. 


Elytra  not  tuberculate ;  or  only  feebly  mnricate  to- 
wards the  tip 3. 

2.    Black,  thinly  pubescent;  elytra  with  a  white  basal 

spot 3.  tenuipes. 

Brown,  mottled  with  white  hair 4.  asper. 

8.    Tibiae  slender,  not  angulated 4. 

"       with  parallel  sides,  suliaugulated  near  the  base  5.  cruralis. 

4.    Apical  teeth  of  prothorax  distinct 6.  nebulosus. 

"          "              "            wanting 7.  nasalis. 

O.  Thighs  armed  with  a  tooth 8.  flavicaudis. 

1.  O.  curtus  Gyll.,  Sch.  Cure,  iv,  287;  Ceiitorliynclms  curt.  Say,  Cure. 
29.  ed.  Lee.  i,  298. 

Southern  States;  two  specimens. 

2.  O.  acephalus  Grerm. ,  Sch.  Cure,  iv,  289;  Falciger  aceph .  Say,  Jouru. 
Ac.  Nat.  Sc.  Phila.  iii,  309;  ed.  Lee.  i,  173;  O.  subuUrostris  Gyll.,  Sch. 
Cure,  iv,  288;  G.  leprosus  Boheman,  Sch.  Cure,  viii,  1,  394. 

Middle  and  Western  States.  The  scales  are  sometimes  mottled,  some- 
times nearly  uniform  in  color.  Tlie  beak  is  cylindrical  in  rf ,  narrowed 
towards  the  tip  in  9  • 

3.  C.  tenuipes,  n.  sp. 

Black,  thinly  clothed  with  fine  depressed  hair-like  scales.  Beak  punc- 
tured, cariuate.  Prothorax  very  coarsely  punctured,  dorsal  channel  deep 
towards  the  base,  lateral  tubercle  small  but  acute.  Elytra  with  the  striae 
wide,  deep  and  punctured;  interspaces  hardly  wider  than  the  striae,  rough 
with  small  acute  tubercles;  base  with  a  common  whitish  spot  at  the  scu- 
tellar  region.  Legs  slender,  thighs  unarmed,  tibiae  slightly  curved;  front 
pair  without  apical  process.  Claws  cleft  as  usual.  Length  2.5  mm. ;  .10 
inch. 

Texas,  Belfrage;  one  (j^.  Greatly  resembles  in  appearance  a  Ceuto- 
rhynehus,  but  the  beak  is  less  slender,  and  the  mesosteruum  is  deeply  con- 
cave 

4.  O.  asper,  n.  sp. 

Brown,  mottled  with  coarse  white  scale-like  hairs.  Beak  rather  stout, 
coarsely  punctured,  tlattened  above,  feebly  carinate.  Prothorax  coarsely 
jiunctured,  dorsal  channel  obsolete,  lateral  tul)ercles  small,  acute.  Elytra 
deeply  striate,  interspaces  wider  than  the  stria?,  convex,  each  with  a  row  of 
large,  distant,  acute  tubercles;  tibi;B  slender,  slightly  curved,  front  pair  with 
a  very  small  spine  directed  outwards,  at  the  external  apical  angle.  Length 
2.2  mm,;  .085  inch. 

Texas,  Belfrage.  The  white  mottlings  of  the  elytra  do  not  form  a  dis- 
tinct pattern,  there  is,  however,  a  tendency  to  transverse  bands,  and  a  cru- 
ciform spot  near  the  base. 

5.  C  cruralis,  n.  sp. 

Black,  thinly  and  irregularly  mottled  with  white,  scale-like  hairs.     Beak 


LeConte.] 


CEUTOllHYNCHINI.  271 


slender,  punctured,  substriate  near  the  base,  finely  carinate.  Prothorax 
very  coarsely  punctured,  dorsal  channel  broad,  not  deep,  lateral  tuljercles 
acute.  Elytra  deeply  striate,  interspaces  convex,  wider  than  the  striaj,  not 
tuberculate;  there  is  a  distinct  cruciform  white  spot  near  the  base.  Tibise 
slender,  straight,  with  parallel  sides  from  near  the  knee  to  the  tip;  front 
pair  without  spine  at  the  outer  apical  angle.     Length  2.2  mm. ;  .085  inch. 

Anticosti,  Mr.  W.  Coupe r,  abundant;  Lake  Superior,  Pennsylvania  and 
Texas.  Easily  known  by  the  peculiar  form  of  the  tibise,  the  external  mar- 
gin of  which  is  obtusely  angulated  near  the  knee,  but  not  at  all  dilated, 
nor  grooved^ 

0.  C.  nebulosus,  n.  sp. 

Broadly  ovate,  very  dark  brown.  Beak  stout  and  long,  punctured,  not 
carinate,  scarcely  striate  towards  tlie  base.  Prothorax  coarsely  punctured, 
l)roader  than  long,  strongly  narrowed  in  front;  dorsal  channel  not  deep, 
apical  tubercles  acute,  not  very  distant,  lateral  tubercles  acute,  prominent. 
Elytra  indistinctly  mottled  with  very  fine  brown  pubescence,  and  very 
small,  white  scales,  not  forming  a  definite  pattern;  striae  deep,  punctured, 
interspaces  rugose,  very  finely  muricate  towards  the  tip.  Thighs  not  toothed, 
tibiae  slender,  nearly  straight.     Length  2  mm. ;  .08  inch. 

Detroit,  Michigan;  Messrs.  Hubbard  and  Schwarz.  I  have  three  larger 
specimens,  from  Georgia  and  Pennsylvania,  which  I  refer  to  this  species, 
though  they  are  of  a  darker  color,  and  the  white  spots  of  the  elytra  are 
more  distinct. 

7.  C.  nasalis,  n.  sp. 

Black,  pruinose  with  a  thin  clothing  of  very  fine  white  hair.  Beak 
rather  stout,  coarsely  punctured,  flattened  above,  with  three  distinct 
carin!B.  Prothorax  coarsely  punctured,  dorsal  channel  deep  behind,  obso- 
lete in  front,  lateral  tubercles  small,  acute.  Elytra  with  broad  deep  striae, 
interspaces  hardly  wider  than  the  striae,  flat;  suture  with  a  short  line  of 
white  scales  extending  from  the  base  for  one-fourth  the  length.  Tibiae 
slender,  slightly  curved,  front  pair  without  spine  at  outer  apical  angle. 
Length  3.5  mm. ;  .14  inch. 

Texas,  Belfrage,  one  (^.  In  this,  as  in  C.  temhipes,  asper  and  cruralis 
the  postocular  lobes  of  the  prothorax  are  indistinct,  and  the  front  margin 
is  nearly  straight  as  far  as  the  in'osternum,  which  in  the  other  species  is 
deeply  emarginate  in  front. 

8.  C.  flavicaudis  Boh.,  Sch.  Cure,  viii,  1,  397. 

Unknown  to  me.  The  thighs  are  described  as  having  a  short,  obtuse 
tooth  beneath.  This  character  will  distinguish  it  from  those  above  men- 
tioned. 

ACALLODES  n.  g. 

This  new  genus  is  estal)lished  upon  an  insect  which  has  the  same  pyri- 
form  body  as  the  Europe.m  Sderopterris,  but  differs  from  that  genus  by  the 
funicle  having  seven  distinct  joints,  of   which  the  first  is  longer  and 


^72  OURCULIONID^.  [LeConto. 

tliicker,  and  the  second  somewhat  elongate  ;  the  others  differ  but  little  in 
length.  The  antecoxal  ridges  of  the  prosternum  are  very  well  developed, 
and  the  front  coxae  are  very  prominent  and  not  widely  separated.  The 
mesosternum  is  not  properly  sulcate,  but  the  middle  coxse  are  large  and 
very  prominent,  not  widely  separated,  so  that  there  is  a  narrow^  deep  space 
between  them.  The  metasternum  is  very  short,  and  the  hind  coxne  widely 
separated.  The  thighs  are  slightly  clavate,  not  toothed,  the  tibiae  are 
slender,  the  tarsi  dilated,  and  the  claws  cleft.  Scutellum  not  visible  ; 
pygidium  exposed. 

1.  A.  ventricosus,  n.  sp. 

Ovate,  very  convex,  dark  brown,  very  finely  pubescent ;  pubescence 
forming  three  vittte  on  the  prothorax  and  two  bands  on  the  elytra.  Head 
^strongly  punctured,  eyes  distant,  not  convex,  beak  stout,  curved,  as  long 
as  the  prothorax,  strongly  punctured,  striate  towards  the  base.  Prothorax 
wider  than  long,  gradually  but  strongly  narrowed  in  front,  rounded  on 
tlie  sides  behind,  constricted  near  the  tip,  apical  margin  not  elevated, 
postocular  lobes  obsolete  ;  disc  A'ery  coarsely  punctured,  dorsal  channel 
distinct,  lateral  tubercles  obsolete.  Elytra  ventricose,  gradually  wider 
than  the  prothorax,  obliquely  narrowed  behind  the  middle  and  strongly 
declivous,  strine  very  deep,  punctured,  interspaces  not  wider,  convex  ;  an 
elongate  basal  spot  on  the  suture  of  white  scales  ;  space  between  the  two 
bands  of  fine  gray  pubescence,  darker.  Beneath  coarsely  punctured,  finely 
and  sparsely  pubescent.  Legs  and  antenna;  lighter  brown.  Length  2.5 
mm.;  .10  inch. 

Middle  and  Western  States,  two  specimens. 

Group  in.     (^eiitorhynchi. 

The  species  of  this  group  are  small,  and  of  the  broad  ovate  form  usual 
in  the  tribe.  They  diflfer  from  the  preceding  group  by  the  pectoral  groove 
not  extending  behind  the  front  coxie,  and  from  the  next  group  by  the  beak 
being  long,  slender,  and  curved  ;  usually  about  half  the  length  of  the 
body.  The  eyes  are  small,  not  prominent,  and  are  partially  concealed  in 
repose  by  l)road  prothoracic  lobes.  The  prosternum  is  suddenly  and  very 
deeply  emarginate  in  front,  and  the  antecoxal  ridges  defining  the  pectoral 
groove  are  acute  and  elevated  in  all  our  species. 

The  beak  is  stouter  and  more  coarsely  sculptured  in  (J',  and  the  last  ven- 
tral segment  is  impressed.*  The  species  in  our  fiiuna  are  not  very  numer- 
ous, and  all  belong  to  Ceutorhpnchiis ;  some  European  species  with  (5- 
jointed  funicle  have  been  separated  itnder  the  name  Ceutorhynchidius, 
but  I  see  nothing  in  our  species  sufficient  to  warrant  the  adoption  of  such 
a  division. 

*  By  an  unfortunate  error,  8uffrian  (Ent.  Zcitung,  18-15,  102)  has  stated  that 
the  feniiile.s  have  the  ventral  impression.  Thompson,  however,  (Skand.  Col. 
vii,  pas.sim),  reports  the  sexual  difference  correctly. 


LeConte.] 


CEUTORHYNCHINI. 


273 


According  to  the  form  of  the  claws  and  the  number  of  joints  of  the 
funicle  the  species  fall  into  natural  groups,  as  follows  : 

A.  Claws  cleft. 

a.  Funicle  7-jointed Sp.  1-3. 

b.  Funicle  6-jointed Sp.  4. 

B.  Claws  toothed  near  the  base  ;  funicle  7-jointed. .  Sp.  5-8. 
O.  Claws  simple. 

a.  Funicle  7-jointed Sp.  9-10. 

b.  Funicle  6-jointed Sp.  11-18. 

A-a.  Claws  cleft  ;  funicle  7-jointed  ;  thighs  toothed. 
More  finely  sculptured;  elytra  without  basal  spot; 

Pubescence  very  fine,  brown 1.  subpubescens. 

"  coarser,  gray 2.  rapse. 

Coarsely  sculptured,  elytra  with  white  basal  spot  3.  sulcipennis. 

A-b.  Claws  cleft,  funiculus  6-jointed ;  thighs  toothed. 

Coarsely  sculptured,  elytra  with  a  white  basal  spot  4.  decipiens. 

B.  Claws  toothed  at  the  base  ;   funicle   7-jointed. 

Prothorax  more  finely  punctured 2. 

very  coarsely  punctured,  deeply  sulcata  5.  rudis. 

2.  Elytra    without  conspicuous  basal  spot,  thighs 

not  toothed 3 . 

Elytra  with  conspicuous  basal  spot,  thighs  toothed  6.  sericans. 

3.  Prothorax  with  sides  much  rounded 7.  convexicollis. 

"            "        "    more  oblique 8.  pusillus. 

C-a.  Claws   simple  ;    funicle   7-jointed. 

Brown,  mottled  above  with  fine  pubescence 9.  pusio. 

spotted  with  large  white  scales 10.  squamatus. 

C-b.  Claws  simple  ;  funicle  6-jointed. 

Elytra  with  spots  of  white  scales. 2. 

"           "    an  indistinct  basal  spot 3. 

2.  Elytra  with  a  narrow  angulated  band 11.  angulatus. 

"          "an  oblique  lateral  spot 12.  obliquus. 

"          "    basal  spot  and  larger  lateral  one 13.  tau. 

"      with  suture  and  lateral  spot  white  ;    red 

behind  the  middle 14.  semirufus. 

Elytra  with  broad  pale  sutural  vitta 15.  medialis. 

3.  Densely  clothed  with  small  apprgssed  hair-like 

scales 16.  septentrionalis. 

Brown,  coarsely  squamose 17.  Ziramenxianni. 

Blackish,    clothed    with    scale-like    pubescence 

not  appressed 18.  puberulus. 

A — a. 
1.  C.  subpubescens,  n.  sp. 

Oblong,  narrowed  in  front,  brownish-black,  above  thinly  clothed  with 
very  fine  brown  pubescence  ;  beneath  with  small  grayish  scales.     Head 
rnoc.  AMER.  PHiLOS.  sec.  XV.  96.  2i 


274  CURCULIOI^ID^.  [LeCoiUe. 

densely  i)unctured,  occiput  finel}'  carinate.  Beak  half  as  long  as  the  body, 
slender,  cylindrical,  shining  and  sparsely  punctured  towards  the  tip,  striate 
and  punctured,  and  carinate  towards  the  base  ;  eyes  distant,  front  slightly 
concave.  Prothorax  a  little  wider  than  long,  gradually  but  strongly 
Harrowed  in  front,  constricted  near  the  tip,  apical  margin  elevated,  post- 
ocular  lobes  large  and  broad  ;  disc  densely  punctured,  dorsal  channel  deep, 
lateral  tubercles  small.  Elytra  oblong,  wider  than  the  prothorax,  strite 
rather  tine,  interspaces  broad,  flat,  densely  and  strongly  rugose  and  granu- 
late. Funicle  of  antenme  rather  long,  lirst  and  second  joint  elongated, 
the  first  stouter  ;  joints  3-7  gradually  a  little  broader,  club  moderate,  oval, 
pointed.  Thighs  acutely  toothed,  claws  cleft.  Length  3.2  mm.;  .135 
inch. 

(^.   Last  ventral  segment  with  two  widely  separated  elevations. 

Los  Angeles  and  Tejon,  California  ;  Mr.  Crotch.  Very  similar  to  the 
next,  but  the  pubescence  of  the  upper  surface  is  much  finer,  and  not  gray, 
but  brown,  and  the  interspaces  of  the  elytra  are  much  more  rough. 

2.  C.  rapae  Gyll.,  Sch.  Cure.  iv.  547:  Redt.,  Fauna  Austr.  805  ;  Thoms., 
Skand.  Col.  vii,  271. 

Canada,  Middle  and  Western  States  ;  also  in  northern  and  middle 
Europe.  The  interspaces  of  the  elytra  are  finely  rugose,  and  towards  the 
tip  are  sparsely  muricate  with  elevated  acute  granules.  The  last  ventral 
segment  as  in  the  preceding  species  has  two  distant  tubercles  in  the  male. 

3.  C.  sulcipennis,  n.  sp. 

Rather  broader  ovate,  black,  clothed  beneath  with  small  whitish  scales, 
above  very  slightly  pubescent.  Head  and  beak  punctured,  the  latter  curved, 
not  distinctly  striate  at  the  base;  occiput  finely  carinate.  Prothorax  wider 
than  long,  narrowed  in  front,  somewhat  rounded  on  the  sides,  slightly  con- 
stricted near  the  tip;  apical  margin  slightlj'  elevated,  postocular  lobes  en- 
tirely wanting;  disc  coarsely  confluently  punctured,  channeled,  lateral 
tubercles  distinct,  acute.  Elytra  deeply  sulcate;  interspaces  not  wider  than 
the  ?>iv'vx,  rough  and  muricate;  an  elongate  basal  spot  on  the  suture,  com- 
posed of  small  white  scales,  sometimes  removed  by  abrasion.  Funicle 
slender,  first  joint  nearly  as  long  as  the  second,  and  stouter;  third  nearly  as 
long  as  the  second;  4^7  gradually  shorter,  but  scarcely  thicker;  club  mode-  • 
rate,  oval  pointed.  Thighs  acutely  toothed,  claws  cleft.  Length  2.5  mm.; 
.10  inch. 

(^.  Last  ventral  segment  with  a  shallow  circular  impression.  Beak 
stouter,  densely  punctured. 

9.  Last  ventral  segment  not  impressed;  beak  longer,  more  slender,  less 
densely  punctured. 

Southern  and  Western  States.  The  mesosternum  is  slightly  concave; 
indicating  a  pectoral  groove,  though  without  ridges.  In  this  character,  as 
well  as  by  the  stouter  and  more  densely  punctured  beak  of  the  (j\  it  shows 
a  tendency  towards  CivUodea. 


Leconte.]  CEUTORHYNCHINl.  275 

A— b. 

•i.  C.  decipiens,  n.  sp. 

Rather  elongate,  black,  beneath  clothed  with  gray  scales,  above  with 
a  few  scattered  white  hairs,  and  an  elongate  white  sutural  spot  at  the  base 
of  the  elytra.  Head  densely  punctured;  beak  {(^)  half  as  long  as  the  body, 
cjiindrical,  curved,  strongly  punctured,  striate  and  carinate  towards  the 
base.  Prothorax  as  long  as  wide,  narrowed  in  front,  sides  slightly  rounded 
behind,  sinuate  in  front,  broadly  constricted  near  the  tip,  apical  margin  not 
elevated,  postocular  lobes  very  feeble,  disc  very  coarsely  punctured,  chan- 
neled behind,  tubercles  wanting.  Elytra  elongate-oval,  wider  than  the 
prothorax,  convex,  very  deeply  striate,  interspaces  not  wider  than  the  striae, 
convex,  rough  with  acute  granules.  AntenniE  with  6-jointed  funicle; 
first  and  second  joint  longer,  the  first  stouter,  club  moderate,  oval-pointed. 
Thighs  armed  with  a  small  but  acute  tooth;  tibi*  rather  less  slender  than 
usual,  claws  cleft.     Length  2.4  mm.;  .09  inch. 

(J".  Last  ventral  segment  with  a  transverse  apical  impression. 

Kansas  and  Michigan;  two  (^.  This  species  has  a  singular  resemblance 
in  form  and  color  to  Rhinoncus  longulus,  but  the  beak  and  sculpture  of  the 
elytra  are  quite  different.  The  generic  characters  seem  to  be  very  nearly 
those  of  Bhytidisomus,  but  the  elytra,  though  rounded  in  form  are  more 
elongate.  I  infer  therefore  that  that  genus,  founded  upon  a  single  Euro- 
pean species  should  be  suppressetl. 

B. 

5.  C  rudis,  n.  sp. 

Dark  brown,  beneath  densely  clothed  with  rather  large  dirt-coloi'ed 
scales,  above  thinly  pubescent  with  brown  hair.  Head  densely  punctured,, 
finely  carinate;  beak  (9)  half  as  long  as  the  body,  shining  and  sparsely- 
punctured  towards  the  tip,  striate  and  punctured  towards  the  base.  Pro- . 
thorax  wider  than  long,  stronglj'  rounded  on  the  sides,  much  narrowed 
and  constricted  near  the  tip;  apical  margin  elevated,  postocular  lobes  broad 
and  feeble  ;  disc  convex  very  coarsely  punctured,  very  deeply  channeled, 
with  pale  scales  in  the  channel  and  at  the  middle  of  the  apex;  tubercles 
wanting.  Elytra  deeply  striate,  interspaces  wider,  somewhat  convex, 
rough.  Funicle  rather  long,  7-jointed,  first  and  second  joints  longer,  the 
first  stouter;  club  moderate,  oval  pointed.  Legs  reddish  testaceous,  thighs 
strongly  toothed,  claws  armed  with  a  short,  acute  basal  tooth.  Length  2.8 
mm. ;  .11  inch. 

One  badly  preserved  specimen;  Kansas. 

6.  C.  sericans,  n.  sp. 

Oblong,  depressed,  dark  brown,  beneath  densely  clothed  with  small,  gray 
scales,  above  with  fine,  scale-like  brown  hairs,  with  a  silky  lustre.  Head 
densely  punctured,  feebly  channeled,  beak  punctured  and  striate  towards 
the  base.  Prothorax  wider  than  long,  sides  nearly  parallel  behind,  then 
strongly  narrowed  and  constricted  near  the  tip;  apical  margin  elevated, 
postocular  lobes  large  and  broad;  disc  densely,  not  coarsely  punctured, 


276  CURCULIO]!^IDJE. 


[LeCoute. 


channeled,  lateral  tubercles  large,  obtuse.  Elytra  striate,  interspaces  flat, 
wide,  granulate,  slightly  mottled  with  white  hairs;  an  elongate,  snow-white 
sutural  spot  extends  from  the  base  for  one-third  the  length.  Thighs 
toothed,  claws  armed  with  a  small  basal  tooth.     Length  3  mm. ;  .08  inch. 

One  (J",  Calaveras,  California;  Mr.  Crotch.  The  last  ventral  segment  is 
deeply  aud  widely  impressed.  A  very  beautiful  and  easily  recognized 
species. 

7.  C.  convexicoUis,  n.  sp. 

Oblong,  black,  beneath  clothed  with  gray  scales,  above  uniformly  densely 
covered  with  coarse  dirt-colored  pubescence.  Head  densely  punctured, 
beak  (?)  long,  slender,  slightly  curved,  shining;  punctured  towards  the 
base.  Prothorax  wider  than  long,  narrowed  in  front,  strongly  rounded  on 
the  sides,  constricted  near  the  tip,  apical  margin  elevated,  postocular  lobes 
very  feeble;  disc  coarsely  punctured,  deeply  channeled.  Elytra  with  deep 
punctured  striae,  interspaces  wide,  flat,  finely  alutaceous.  Antenn;*  testa- 
ceous, funicle  slender,  second  joint  longer  and  more  slender  than  the 
first.  Legs  brown,  thighs  not  toothed,  claws  with  a  long  acute  tooth. 
Length  2  mm. ;  .08  inch. 

Texas,  Belfrage,  two  $ .  Of  the  same  general  form  as  G.  rajxe,  but  much 
smaller,  and  with  a  quite  different  prothorax. 

9.  C.  pusillus,  n.  sp. 

Oblong,  depressed,  dark  brown,  or  ferruginous,  clothed  beneath  with 
rather  small  gray  scales,  above  with  short  rigid  pubescence,  mixed 
with  similar  scales.  Head  densely  punctured,  occiput  finely  carinate; 
beak  slender,  punctured,  striate  at  the  base.  Prothorax  wider  than 
long,  sides  more  obliquely  rounded  behind,  suddenly  narrowed  and 
constricted  in  front,  apical  margin  elevated;  disc  densely  punctured,  less 
deeply  channeled,  with  a  dorsal  line  of  pale  scales;  posterior  tubercles 
large,  rather  acute.  Elytra  with  deep  striae,  interspaces  somewhat  wider, 
sli2;htly  convex,  sparsely  rugose;  a  basal  whitish  spot,  occupying  the  space 
from  the  suture  to  second  stria.  Funicle  slender,  7-jointed;  first  and 
second  joints  longer,  the  first  stouter;  club  moderate,  oval  pointed.  Legs 
ferruginous,  thighs  not  toothed,  claws  with  an  acute  basal  tooth.  Length 
3  mm. ;  .08  inch. 

1^.  Last  ventral  segment  with  a  deep,  round  impression. 

California  and  Oregon;  not  rare.  Allied  to  C.  convexicoUis;  differs 
chiefly  by  the  sides  of  the  prothorax  less  rounded,  the  dorsal  channel  less 
deep,  and  the  lateral  tubercles  more  acute.  The  whitish  basal  spot  of  the 
elytra  is  frequently  indistinct;  aud  I  have  indeed  some  specimens  which 
have  lost  the  scales  of  the  upper  surface,  while  retaining  the  pul)escence. 
These  present  a  very  deceptive  appearance,  and  look  almost  as  if  they  be- 
longed to  a  different  species. 

C— a. 
9.  O.  pusio  Mann.,  Bull.  Mosc,  1853,  ii,  355. 
Oblong,  depressed,  dark  brown,  beneath  densely  clothed  with  small. 


LeConte] 


CEUTORHYN^CHINI.  277 


pale  scales;  above  mottled  with  fine,  short,  brown  pubescence.  Head 
densely  punctulate,  front  l)roadly  concave;  beak  not  half  as  long  as  the 
body,  slender,  curved,  nearlj^  smooth  and  shining  externally,  punctulate 
and  finely  carinate  towards  the  base.  Prothorax  wider  than  long,  sides 
rounded  behind,  strongly  narrowed  and  constricted  near  the  tip;  apical 
margin  elevated,  postocular  lobes  wanting;  disc  coarsely  punctured,  dorsal 
channel  broad,  subinterrupted,  lateral  tubercles  large,  acute.  Elytra  deeply 
striate,  interspaces  wider,  slightly  convex,  sparsely  and  deeply  rugose; 
scutellar  region  clothed  with  pale  scales.  Funicle  with  first  and  second 
joints  elongated,  first  stouter;  3-7  gradually  a  little  wider,  club  rather 
large,  oval-pointed.  Thighs  not  toothed,  claws  slender,  not  toothed. 
Length  2  mm.;  .08  inch. 

(^.  Last  ventral  segment  with  a  deep,  round  excavation. 

Alaska.  I  owe  two  typical  specimens  to  the  kindness  of  Prof.  Mieklin; 
it  was  also  found  by  Mr.  Crotch,  at  Clear  Lake,  California.  In  well  pre- 
served specimens,  the  sides  of  the  prothorax  and  the  dorsal  channel  are 
clothed  with  pale  scales. 

10.  C.  squamatus,  n.  sp. 

Ovate,  broad,  dark  piceous,  depressed,  beneath  clothed  with  whitish 
scales,  above  thinly  pubescent,  with  spots  of  large  rounded,  wiiite  scales. 
Head  finely  punctured;  beak  long,  slender,  much  curved,  nearly  smooth 
towards  the  tip,  finely  striate  towards  the  base.  Prothorax  wider  than 
long,  strongly  narrowed  in  front,  and  constricted  near  the  tip,  apical  mar- 
gin elevated,  ferruginous,  postocular  lobes  wanting;  disc  densely  punc- 
tured, dorsal  channel  feeble,  lateral  tubercles  small,  acute;  sides  and  basal 
spot  covered  with  white  scales.  Elytra  with  deep  punctured  striae,  inter, 
spaces  wider,  slightly  convex,  rugose,  marked  with  scattered  white  scales; 
there  is  a  large  scutellar  spot,  and  a  transverse  band  behind  the  middle, 
densely  clothed  with  white  scales.  Funicle  slender;  first  and  second  joints 
longer,  the  first  a  little  stouter,  club  elongate-oval,  pointed.  Thighs  not 
toothed,  claws  slender,  not  toothed.     Length  2  mm. ;  .08  inch. 

(^.  Last  ventral  segment  with  a  deep  transverse  excavation. 

Illinois;  three  specimens. 

C— b. 

11.  O.  angulatus,  n.  sp. 

Oblong,  depressed,  brown  or  blackish  brown,  densely  clothed  above 
and  beneath  with  small  pale  scales  ;  a  white,  narrow,  angulated 
band  on  each  elytron,  running  from  the  side  about  one-third 
from  the  base  obliquely  backwards  a  short  distance,  then  obliquely 
forwards  to  the  scutellum.  Head  densely  punctured,  beak  according  to 
sex;  front  slightly  concave.  Prothorax  wider  than  long,  rounded  on  the 
sides,  strongly  narrowed  and  constricted  in  front,  apical  margin  elevated, 
postocular  lobes  broad  and  distinct;  disc  covered  with  white  scales  at  the 
sides,  very  densely  punctured,  dorsal  channel  deep,  lateral  tubercles  acute, 
large.     Elytra  with  rather  shallow  punctured  striae,  interspaces  wide,  flat, 


278  CURCULIOI^ID^. 


[LeConte. 


densely  rugose.  Funicle  O-jointed,  first  to  third  joints  elongate,  the  tirst 
stouter;  club  oval-pointed.  Thighs  with  a  very  small  obtuse  tooth,  claws 
slender,  simple.     Length  3  mm.;  .12  inch. 

(f.  Last  ventral  segment  with  a  deep  transverse  excavation;  beak  lei«8 
than  half  the  length  of  the  body,  stouter,  densely  punctured. 

9.  Last  ventral  segment  not  impressed;  beak  half  the  lengtli  of  the 
body,  more  slender  and  more  curved,  nearly  smooth  towards  the  tip, 
strongly  punctured  and  striate  towards  the  base. 

Vancouver  Island  and  California.  Among  many  specimens  before  me, 
there  are  only  a  few  in  which  the  markings  are  perfectly  preserved;  in 
these,  besides  the  angulated  narroAV  band  above  described,  the  apical  part 
of  the  elytra  is  also  clothed  with  white  scales,  especially  towards  the  suture; 
but  these  scales  are  less  densely  placed  than  those  in  the  band ;  there  is  also 
a  spot  at  the  middle  of  the  base  of  the  prothorax. 

13.  C.  obliquus,  n.  sp. 

Oblong,  depressed,  brown,  densely  clothed  above  and  beneath  with  pale 
brown  scales,  which  are  smaller  above.  Head  and  beak  like  the  preceding. 
Prothorax  wider  than  long,  rounded  on  the  sides,  strongly  narrowed  and 
constricted  near  the  tip;  apical  margin  elevated,  postocular  lobes  broad, 
distinct;  disc  densely  and  more  coarsely  punctured  than  in  C.  angulatus, 
deeply  channeled,  lateral  tubercles  large,  acute.  Elytra  less  broad  at  base, 
strife  rather  shallow,  punctured,  interspaces  wide,  flat,  strongly  rugose;  a 
lateral  oblique  spot  of  dense  whitish  scales  extends  from  the  ninth  to  the 
fifth  stria.  Other  characters  and  sexual  difterences  as  in  0.  angulatus. 
Length  2.4  mm. ;  .09  inch. 

California  at  San  Mateo  ;  three  specimens,  Mr.  Crotch.  Closely  related 
to  the  preceding,  but  more  elongate,  and  with  the  scales  uniform  in  color, 
except  the  white  oblique  spot  towards  the  sides  of  the  elytra. 

13.  C.  tau,  n.  sp. 

Ovate,  narrowed  in  front,  and  less  so  behind,  depressed,  blackish,  densely 
(dothed  with  dark  gray  scales,  which  are  smaller  and  more  fuscous  above. 
Beak  curved,  slender,  sparsely  punctured,  striate  towards  the  base.  Head 
densely  punctured.  Prothorax  as  in  C.  angulatus,  but  more  obliquely 
rounded  on  the  sides.  Elytra  less  oblong,  more  distinctly  narrowed  l)e- 
hind,  similarly  striate  and  rugose,  with  a  large  scutellar  spot  like  an  in- 
verted T>  ^^^  ^'1  oblique  lateral  spot  densely  clothed  with  gray  scales. 
Antennte  and  legs  brown,  similar  to  those  of  C.  angulatus.  Length 
3  mm.;  .12  inch. 

One  specimen,  Texas;  Belfrage.  Also  closely  allied  to  the  two  preced- 
ing, and  differing  only  by  form  and  elytral  spots. 

14.  O.  semirufus,  n.  sp. 

Ovate  narrowed  in  front,  and  less  so  liehind,  brown;  elytra  behind  tlie 
middle,  antennte  and  legs  ferruginous;  beneath  densely  clothed  with  white 
scales;  above  thinly  and  finely  puliescent,  with  the  suture  and  quadrate 
lateral  spot  of  elytra  clothed  with  white  scales.     Head  densely  punctured, 


LeCoiite. 


CEUTOEHYNCHINI.  279 


beak  curved,  punctured  towards  the  tip,  striate  towards  the  base.  Pro- 
tliorax  wider  tliau  long,  rounded  on  the  sides,  narrowed  and  constricted  in 
front,  apical  margin  elevated;  postocular  lobes  broad,  distinct;  disc  strongly 
less  densely  punctured,  deeply  channeled,  lateral  tubercles  acute,  sides  and 
dorsal  line  clothed  with  white  scales.  Elj'tra  with  punctured  strife,  inter- 
spaces flat,  shining,  slightly  punctulate.  Thighs  not  toothed,  claws  slender, 
simple.     Length  1.3  mm. ;  .05  inch. 

Detroit,  Messrs.  Hubbard  and  Schwarz.  A  small  species  remarkable  for 
the  less  pubescent  upper  surface,  and  pectiliar  coloration;  seems  related  to 
the  European  C  querceti,  but  differs  by  the  quadrate  lateral  white  spot  of 
tlie  elytra. 

15.  O.  medialis,  n.  sp. 

Oblong,  depressed,  Ijrown,  beneath  densely  clothed  with  pale  scales, 
above  with  fine  brown  hair-like  scales.  Head  punctured,  beak  long,  slen- 
der, curved,  shining  and  nearly  smooth  towards  the  tip,  punctured  and  sub- 
striate  near  the  base.  Prothorax  wider  than  long,  obliquely  rounded  on 
the  sides,  strongly  narrowed  and  constricted  near  the  tip,  apical  margin 
elevated,  postocular  lol>es  broad,  indistinct;  disc  strongly  punctured,  dor- 
sal channel  not  deep,  lateral  tubercles  small  but  acute;  sides  and  dorsal 
line  clothed  with  pale  scales.  Elytra  with  punctured  striie,  interspaces 
wider,  flat,  strongly  rugose;  sutural  interspace  and  base  of  second  densely 
clothed  with  pale  scales;  sides  of  elytra,  especially  behind  the  middle,  less 
densely  clothed  with  similar  scales.  Funicle  6-jointed.  Thighs  not 
toothed,  claws  slender,  not  toothed.     Length  2  mm. ;  .08  inch. 

Two  specimens.  Lake  Superior.  The  beak  is  similar  in  the  two  speci- 
mens, but  one  of  them,  which  I  infer  to  be  the  ^,  has  the  last  ventral  seg- 
ment very  feebly  impressed. 

10.  O.  septentrionalis  Gyll.,  Sch.  Cure,  iv,  493. 

Lake  Superior,  Canada,  and  Pennsylvania;  not  rare.  A  small  species, 
densely  clothed  above  with  depi'essed,  scale-like  pubescence,  which  has  a 
feeble  metallic  lustre;  in  many  specimens  there  is  a  faintly  marked  paler 
scutellar  spot.  The  lateral  tubercles  of  the  prothorax  are  very  small;  the 
funicle  6-jointed;  the  thighs  not  toothed;  the  claws  slender,  not  toothed. 
Length  3  mm. ;  .08  inch. 

17.  C  Zimmermani  Gyll.,  Sch.  Cure,  iv,  493. 

Canada  to  Texas.  Still  smaller,  brown,  clothed  with  small,  pale  scales 
above;  lateral  tubercles  of  prothorax  verj'  small;  antennae,  thighs  and  claws, 
as  in  the  preceding.  The  elytra  and  legs  usually  of  a  paler  brown,  .^ength 
1.5  mm.;  .06  inch. 

18.  C.  puberulus,  n.  sp. 

Oblong,  depressed,  blackish  with  a  feeble  metallic  glimmer,  beneath 
clothed  with  pale  scales,  above  with  short,  coarse  pubescence.  Prothorax 
wider  than  long,  much  narrowed  and  constricted  in  front,  apical  margin 
elevated,  postocular  lobes  broad,  not  distinct;  densely  punctured,  dorsal 
channel  distinct,  not  very  deep,  lateral  tubercles  small,   acute.      Elytra 


280  CURCULIONID^. 


[LeCoiite. 


deeply  striate,    interspaces  flat,    rugose.     Funicle   6-jointed;   thiglis  and 
claws  not  toothed.     Length  1.7  mm. ;  .07  inch. 

Canada  and  Michigan.  A  little  larger  and  darker  colored  tlian  C  Zim- 
mermanni,  from  which  it  differs  chiefly  by  the  upper  surface  being  covered 
with  scale-like  hairs,  or  small,  elongate,  hair-like  scales;  while  in  the  pre- 
ceding most  of  the  scales  are  oval. 

Group  IV.     Pbytobii. 

The  species  of  this  group  differ  from  the  Ceutorhynchi  only  by  the  beak 
being  stout,  and  usually  short,  in  one  instance  scarcely  as  long  as  the  pro- 
thorax.  The  prothoracic  lobes  are  feeble  or  wanting,  the  eyes  are  some- 
times partially  covered  in  repose,  sometimes  entirely  free.  The  pectoral 
groove  is  sometimes  well  defined  by  antecoxal  ridges  on  the  prosternum, 
but  occasionally  these  are  absent.  The  first  genus  exhibits  a  very  singular 
reversion  towards  the  Bago^is  group,  M'ith  which  it  might  indeed  be  placed, 
were  it  not  that  the  pygidium  is  exposed,  and  similar  in  sculpture  to  that 
of  the  other  members  of  the  present  tribe,  and,  also,  that  other  characters 
correspond  with  the  position  here  assigned  to  it. 

The  genera  are  somewhat  diflicult  to  define,  in  consequence  of  the  im- 
portant structural  characters  l)y  which  the  species  are  distinguished.  It 
is  probable  that  they  will  be  increased  in  future,  by  those  whose  views 
tend  to  the  multiplication  of  genera,  but  for  the  present,  I  think  that  the 
divisions  here  adopted  express  both  conveniently  and  naturally  the  affini- 
ties of  the  species  known  to  me. 

Tarsi  with  the  third  joint  dilated,  bilobed 2. 

"      slender,  long,  not  dilated PHYTOBIUS. 

2.  Prosternum  with  acute  antecoxal  ridges 3. 

without       "  "  PELENOMUS. 

3.  Eyes  with  acutely  elevated  orbits CCELOGASTER. 

"     without  "  "      RHINONCUS. 

PHYTOBIUS  Sch. 
EubrycMus  Thomson. 

In  this  genus  the  beak  is  stout,  cylindrical,  nearly  as  long  as  the  protho- 
rax  ;  the  eyes  are  small,  rounded,  convex  and  fully  exposed.  Prothorax 
not  much  wider  than  the  head,  wider  than  long,  slightly  narrower  at  the 
tip,  truncate  before  and  behind,  with  a  small  angle  at  the  scutellum ;  the 
disc  is  feebly  longitudinally  impressed  behind  the  middle,  and  the  lateral 
tubercles  are  small  and  indistinct.  Elyti'a  deeply  striate,  nearly  twice  as 
wide  as  the  prothorax,  and  about  three  times  as  long,  voluminous,  broad 
at  the  base,  gradually  narrowed  behind.  Pygidium  triangular,  exposed. 
Legs  long,  slender,  tibise  nearly  straight,  not  mucronate  ;  tarsi  not  dilated, 
last  joint  as  long  as  the  others  united,  with  rather  large  simple  claws. 

A  remarkable  and  easilj'  recognized  genus,  of  which  but  one  species  is 
known.  Schonherr  divided  Phytobius  into  two  groups  of  which  the  first 
{genuini),  was  characterized  by  long  slender  tarsi.  There  is,  therefore, 
no  excuse  for  retaining  the  name  for  the  second  group,  (spurii)  and  it  must 
be  restored  to  this  genus  afterwards  named  EubrycMus  by  Thomson. 


LeConte. 


CEUTORHYNCHINI.  281 


1.  P.  velatus  Gyll.,  Scli.  Cure,  iii,  459;  Ehpnchienus  vel.  Beck,  Beitr. 
Bayersch.  Ins.  Fauna,  20 ;  Liiodactylus  vel.  Redt.,  Faun.  Austr.  777 ; 
Eubrychius  vel.  Thomson,  Skand.  Col.  vii,  232. 

A  specimen  collected  at  Detroit,  Michigan,  by  Messrs.  Hubbard  and 
Schwarz,  does  not  differ  appreciably  from  the  detailed  descriptions  above 
cited  ;  it  is  rare  in  northern  and  middle  Europe,  on  Potamageton  and  other 
plants,  below  the  surface  of  the  water.  It  is  a  small  black  insect,  clothed 
with  depressed  greenish  yellow  scales  ;  the  prothorax  has  two  broad  dark 
stripes  ;  the  elytra  are  more  thinly  clothed  with  scales,  except  the  sutural 
interspace,  which  is  densely  covered.  The  antennae  and  legs  are  bright 
yellow,  with  the  knees  dusky.     Length  2  mm. ;  .08  inch. 

PELENOMUS  Thomson. 

Tlie  species  of  this  genus  are  easily  distinguished  by  the  short  stout  beak, 
whicli  they  have  in  common  with  Rhinoncus  and  Ccelogaster,  being  com- 
bined with  prosternum  somewhat  emarginate  in  front,  but  without  ante- 
coxal  ridges.  Tlie  eyes  are  round,  convex,  without  orbital  ridges,  and 
are  completely  exposed  in  repose,  on  account  of  the  entire  absence  of  the 
postocular  lobes  of  the  prothorax.  The  claws  are  simple  and  moderately 
large.  The  funicle  is  6-jointed,  with  the  tirst  joint  longer  and  stouter  ;  the 
club  is  rather  large,  oval-pointed,  annulated  and  acuminate.  There  are 
but  three  species  in  my  collection  : 

A.  Funicle  slender,  2d  and  3d  joints  distinctly  longer. 
Prothorax  broadly  sulcate,    apical    and    posterior 

tubercles  strongly  marked,  acute 1.  sulcicollis. 

B.  Funicle  shorter  and  stouter,  joints  2-3  very  little  longer. 
Prothorax  broadly  sulcate,  apical  tubercles  more  dis- 
tant but  acute,  posterior  tubercles  acute 2.  squamosus. 

Apical  tubercles   indistinct ;  interspaces  of  elytra 
with  rows  of  acute  tubercles 3.  cavifrons. 

1.  P.  sulcicollis.   PhytoMus  sulc.  Fahr.,  Sch.  Cure,  vii,  346. 

Lake  Superior  to  Georgia.  The  second  and  third  joints  of  the  funicle 
are  distinctly  longer  than  the  following  ones,  and  the  upper  margin  of  the 
eye  is  a  little  prominent,  showing  a  tendency  toward  the  second  division  of 
Ccelogaster. 

2.  P.  squamosus,  n.  sp. 

Smaller  than  P.  sulcicollis,  black,  above  densely  clothed  with  dark  gray 
scales,  slightly  mottled  with  brown,  beneath  with  paler  scales.  Beak 
scarcely  longer  than  the  head,  stout,  cylindrical,  densely  and  finely  punc- 
tured ;  eyes  convex,  prominent,  head  densely  punctured,  not  impressed. 
Prothorax  wider  than  long,  much  narrowed  in  front,  apical  tubercles  acute, 
distant,  posterior  tubercles  acute,  rather  large  ;  dorsal  channel  not  deep, 
sides  and  dorsal  stripe  with  paler  scales.  Elytra  with  deep  slightly  punc- 
tured striae,  interspaces  convex,  very  finely  rugose.  Antennae  and  legs 
more  or  less  testaceous  ;  the  former  rather  stout,  with   large  oval   club; 

PHOC.  AMER.  PHILOS.  SOC.  XV.  96.  2j 


282  CURCULIONID.E.  [LeConte. 

second  joint  of  funicle  a  little  longer  than  the  third,  which  is  about  equal 
to  the  fourth.     Claws  simple.     Length  2  mm.;  .08  inch. 

Two  specimens,  New  York  and  Michigan  ;  three  specimens,  British 
Ci>luml)ia;  Crotch.  The  legs  are  testaceous  in  one,  piceous  in  the  others. 
Tlie  prosternum  is  broadly  emarginate  in  front,  and  slightly  concave,  l)ut 
without  antecoxal  ridges  ;  the  front  coxae  are  not  widely  separated.  In  the 
preceding  species  the  prosternum  is  more  deeply  emarginate  and  more  con- 
cave, though  the  front  coxge  are  not  more  widely  separated. 

3.  P.  cavifrons,  n.  sp. 

Of  the  same  size  and  form  as  P.  sulcicoUis,  densely  clothed  with  small 
liale  and  dark  scales.  Beak  as  long  as  the  head,  stout,  cylindrical,  curved, 
densely  punctured  ;  front  strongly  concave  between  the  eyes.  Prothorax 
wider  than  long,  much  narrowed  in  front,  and  deeply  transversely  im- 
pressed; apical  margin  elevated,  notched  at  the  middle,  with  approximate 
cusps ;  posterior  tubercles  large,  acute  ;  dorsal  channel  distinct.  Elytra 
with  rows  of  small,  distant,  acute  tubercles  on  the  third,  fifth,  seventh  and 
ninth  interspaces  ;  striae  deep  ;  antennae  and  legs  more  or  less  testaceous  ; 
funicle  with  the  second  joint  scarcely  longer  than  the  third  or  fourth. 
Front  coxfe  not  more  widely  separated  than  in  the  other  species.  Length 
2.2  mm. ;  .09  inch. 

California,  at  S.  Buenaventura,  Los  Angeles,  and  Lake  Tahoe;  ]Mr. 
Crotch.  Though  the  front  is  deeply  concave,  and  the  upper  margin  of  the 
eyes  prominent,  there  is  no  distinct  orbit,  such  as  is  seen  in  Ccelogaster. 

CCELOG-ASTER  Sch. 

This  genus  is  easily  distinguished  from  both  Rhinoncus  and  Pelencon'is 
by  the  eyes  being  inserted  under  distinct,  acute,  superciliary  ridges  or  or- 
bits, and  being  partly  covered  in  repose.  There  are  also  important  differ- 
ences in  the  sternal  pieces  ;  the  prosternum  is  still  more  deeply  and  sud- 
denly emarginate  in  front,  so  as  to  reach  almost  to  the  front  coxae,  which 
also  reach  almost  to  the  hind  margin,  and  are  more  widely  separated  than 
in  either  of  the  genera  just  named;  the  ridges  in  front  of  the  coxa?  limiting 
the  pectoral  groove,  are  much  stronger.  The  mesosternum  is  truncate  be- 
hind at  the  middle,  and  enters  less  into  the  formation  of  the  middle  coxal 
cavities.  The  intercoxal  process  of  the  metasternum  is  therefore  almost 
square,  and  the  middle  coxae  are  more  posterior  than  in  the  other  genera. 

The  beak  and  claws  vary  according  to  species;  the  funicle  is  6-jointecl, 
the  first  joint  being  stouter,  and  the  others  slender  ;  second  and  third  elon- 
gate ;  4-6  shorter,  equal,  scarcely  thicker,  club  elongate-oval,  pubescent, 
acute  at  tip. 

Tliree  species  are  known  to  me,  of  which  the  first  is  the  type  of  the 
genus. 

A.  Beak  slender,  claws  cleft  ;  eyes  nearly  covered  in  repose. 
Black,  mottled   with  whitish  pubescence;   elytra 
with  a  common  cruciform  white  mark  at  base; 
antennae,   tibiae  and  tarsi  testaceous 1.  Zimraermanni. 


LeConte.] 


CEUTORHYNCHIXI.  283 


B.  Beak  stout,  claws  simple;  eyes  nearly  entirely  ex- 
posed. 
Black,  clothed  with  tine  brown  pubescence;  an- 
tennae and  legs  dark  testaceous •  2.  cretura. 

Brown,  with  some  small  white  spots 3.  obscurus. 

1.  C.  Zimmermanni  Gyll.,  Sch.  Cure,  iv,  580. 

South  Carolina  and  Georgia.  The  beak  in  this  species  is  nearly  as  long 
as  the  prothorax,  and  is  only  about  one-quarter  as  wide  as  its  length.  The 
supraocular  ridges  are  less  developed  than  in  the  two  other  species.  The 
postocular  lobes  are  very  broad  and  nearly  conceal  the  eyes  in  repose. 

2.  C.  cretura.  CurcuUocretu)'aB.erhst,  Kafer,  vii,  70;  pi.  100,  f.  5;  Geu- 
torhynchus  cret.  Say,  Cure.  20;  ed.  Lee.  i,  285;  Falciger  A-spino>(m  Say, 
Journ.  Ac.  Nat.  Sc.  Phil,  iii,  310;  ed.  Lee  ii,  173.  Phytobius  A-sjoin.  Gyll., 
Sch.  Cure,  iii,  463. 

Broadly  ovate,  black,  above  thinly  clothed  with  brown  pubescence,  be- 
neath at  the  sides  covered  with  pale  brown  scales,  extending  upon  the  sides 
of  the  prothorax.  Head  punctured,  broadly  impressed  between  the  eyes; 
tinely  carinate  behind,  supraorbital  ridges  strong;  beak  rather  stout,  curved, 
as  long  as  the  head,  finely  punctured.  Prothorax  wider  than  long,  strongly 
narrowed  in  front,  densely  punctured,  middle  of  base  deeply  impressed; 
the  tw^o  apical  denticles  are  acute  and  distant;  the  posterior  or  lateral  tu- 
bercles are  also  large  and  acute.  Elytra  with  deep  strife,  which  are  punc- 
tured at  the  bottom;  interspaces  not  much  wider  than  the  striae  near  the 
suture,  but  becoming  wider  externally,  densely  rugose.  Beneath  densely 
coarsely  punctured,  antennae  and  legs  brown ;  claws  not  toothed.  Length 
2.8  mm. ;  .11  inch. 

Middle  and  Western  States.  Of  the  same  size,  form  and  sculpture  as  G. 
Zimmermanni,  but  quite  distinct  by  the  shorter  beak,  simple  claws,  unva- 
riegated  pubescence,  and  not  channeled  prothorax.  It  is  perhaps  worthy 
of  being  separated  w'ith  the  next  species,  as  a  distinct  genus,  on  account  of 
the  eyes  being  almost  entirely  exposed  in  repose,  while  in  C.  Zimmerman- 
ni they  are  nearly  covered. 

3.  C  obscurus,  n.  sp. 

Broadly  oval,  reddish  brown,  head  darker,  strongly  punctured,  deeply 
impressed;  supraorbital  ridges  strong;  beak  very  stout,  not  longer  than  the 
head,  more  finely  punctured.  Prothorax  wider  than  long,  much  narrowed 
in  front,  coarsely  punctured,  channeled;  apical  denticles  acute,  distant, 
posterior  tubercles  acute.  Elytra  with  a  few  small  spots  of  white  hairs; 
striae  deep,  strongly  punctured;  interspaces  but  little  wider,  convex,  finely 
rugose  and  finely  scaly.  Beneath  coarsely  punctured,  clothed  with  pale 
scales.  Antennae  and  legs  testaceous,  claws  not  toothed.  Length  2.8  mm. ; 
.11  inch. 

Florida;  Dr.  E.  Brendel,  and  Messrs.  Hubbard  and  Schwarz,  Of  the 
same  form  and  size  as  the  preceding,  but  with  shorter  and  stouter  beak; 
more  coarsely  punctured,  and  rather  deeply  channeled  prothorax. 


284  CURCULIONTD^. 


[LeConte, 


RHINONCUS  Sch. 


The  species  of  this  genus  have  the  broad  stout  form  usual  in  the  tribe, 
and  only  differ  from  Pelenomus  by  the  presternum  being  deeply  emargi- 
nate  in  front,  with  distinct  antecoxal  ridges. 

The  middle  coxfe  are  normal  in  position,  their  cavities  being  formed 
equally  by  the  meso-  and  metasternum,  whereby  it  differs  notably  from 
Ccelogaster ;  it  also  differs  from  that  genus  by  the  eyes,  which  are  rounded 
and  convex,  as  in  the  other  genera,  and  without  any  trace  of  superciliary 
ridge. 

The  funicle  of  the  antennoe  is  7-jointed,  and  the  claws  cleft  are  in  our 
species. 

1.  R.  pericarpius  Gyll.,  Sch.  Cure,  iv,  582;  Curculio  peric.  Linn., 
Syst.  Nat.  12th,  ii,  609;  Fabr.,  Ent.  Syst.  i,  2d,  p.  408;  et  auctorum  plu- 
rimorum;  CeutorhyncMis  triangularis  Say,  Cure.  20;  ed  Lee.  i,  286. 

Abundant  in  Europe;  Lake  Superior,  Indiana,  Pennsylvania,  Kansas; 
easily  known  from  our  other  Ceutorhynchoids  by  the  larger  size  and  con- 
spicuous elongate  sutural  white  spot  at  the  base  of  the  elytra.  The  pro- 
thorax  is  very  coarsely  punctured,  feebly  channeled,  and  the  lateral  tuber- 
cles are  not  very  distinct.  Length  4  mm. ;  .  16  inch .  I  do  not  know  why 
Gemminger  and  Harold  have  referred  Say's  description  to  Phytobius. 

2.  R.  pyrrhopus  Boh.,  Sch.  Cure,  viii,  2d,  172. 

Middle  and  "Western  States,  to  Colorado.  Smaller,  clothed  above  with 
coarser  brown  pubescence,  and  beneath  with  white  scales.  The  prothorax 
is  feebly  channeled,  and  the  lateral  tubercles  are  acute.  The  antennae  and 
legs  are  fulvous  yellow.  The  elytra  are  marked  with  a  similar  elongate 
basal  white  or  j'ellowish  spot,  which,  however,  is  sometimes  not  very  ap- 
parent.    Length  2.3  mm. ;  .09  inch. 

3.  R.  long-ulus,  n.  sp. 

Elongate,  black  or  dark  brown,  thinly  clothed  with  small  white  scales; 
more  dense,  forming  a  short  posterior  dorsal  line  on  the  prothorax,  and  an 
elongate  sutural  spot  at  the  base  of  the  elytra.  Head  and  beak  densely 
punctured,  the  latter  stout,  not  longer  than  the  head.  Prothorax  not  wider 
than  long,  slightly  narrowed  in  front,  feebly  rounded  on  the  sides,  coarsely 
and  densely  punctured;  slightly  channeled  near  the  base;  tubercles  entire- 
ly wanting.  Elytra  wider  than  the  prothorax,  elongate-oval,  convex,  hu- 
meri oblique;  striae  deep,  punctured,  interspaces  fiat,  densely  rugose.  An- 
tennae and  tarsi  testaceous.     Length  2.5  mm.;  .10  inch. 

Southern  and  Western  States;  Florida  to  Illinois;  Gilroy,  California. 
Remarkable  for  its  elongate  form,  and  the  absence  of  prothoracic  tubercles. 
The  eyes  are  round,  and  barely  touch  the  prothorax  in  repose.  The  ante- 
coxal ridges  are  very  strong,  but  the  prosternum  is  hardly  emarginate  in 
front. 

Tribe  XIX.     bariki. 

An  important  type  of  Curculionidce,  containing  numerous  genera  and 
groups,  of  which  only  a  few  are  represented  in  our  fauna.     It  is  in  this 


LeConte.J 


BAEII^^I.  285 


tribe  that  the  nearest  approach  to  Calandrida  and  CossonidcB  is  made,  in 
form  and  general  appearance,  though  the  family  characters  are  quite  dif- 
ferent. 

The  following  characters  will  enable  them  to  be  distinguished  from  the 
other  tribes  in  which  the  front  coxae  are  separate. 

Beak  not  received  closely  upon  the  sternum,  which  however  is  some- 
times broadly  sulcate  in  front  of  the  anterior  coxae;  when  this  groove  does 
not  exist,  there  are  sometimes  seen  {Madams)  two  short  approximate 
ridges,  limited  inwards  by  an  impressed  line,  which  may  be  regarded  as 
the  last  remnant  of  the  pectoral  groove.  In  other  cases  (Baris  striatus) 
even  these  lines  disappear,  and  the  merest  trace  of  a  concavity  remains  in 
the  apical  constriction  of  the  prothorax,  which  in  all  the  species  is  not 
emarginate  beneath,  and  is  destitute  of  postocular  lobes.  In  many  others 
even  this  slight  concavity  or  flattening  is  wanting,  and  the  apical  part  of 
the  prothorax  is  altogether  cylindrical,  above  and  ])eneath.  The  meso- 
and  metasternum  are  closely  united,  and  the  suture  between  them  is  fre- 
quently obliterated.  The  side-pieces  of  the  mesothorax  are  so  extended 
outwards  and  upwards,  that  they  intervene  strongly  between  the  base  of 
the  prothorax  and  the  elytra  The  sides  of  the  latter,  therefore,  become 
obliquely  truncated,  giving  a  form  not  observed  in  any  of  the  preceding 
tribes.  The  other  characters  are  somewhat  variable.  The  pygidium  is 
sometimes  exposed,  sometimes  covered.  The  claws  are  simple,  and  either 
divergent,  connate,  or  even  {Barilepton)  single. 

The  genera  in  our  fauna  represent  two  groups: 

Pygidium  exposed,  usually  vertical;  fifth  ventral  segment 

in  the  latter  case  truncate  or  subemarginate Barides. 

Pygidium  oblique  or  horizontal,  not  fully  exposed;  fifth 

ventral  segment  rounded  at  tip Centrini. 

Group  I.     Barides. 

The  separation  between  this  group  and  the  Centrini  is  not  very  definite, 
though  characters  such  as  the  perpendicular  pygidium,  and  the  shorter  and 
stouter  beak,  seen  in  most  of  the  species,  do  not  occur  in  the  last  named 
group.  The  main  character  to  be  relied  on,  in  the  absence  of  the  easily 
recognized  habitus,  is  that  the  elytra  are  more  broadly  separately  rounded 
at  tip,  and  the  pygidium  thus  becomes  more  exposed. 

Pygidium  oblique;  fifth  ventral  segment  longer, 
rounded  at  tip;  outer  joints  of  funicle  but  little 
broader,  club  large,  elongate-oval,  pubescent. ...  2. 

Pygidium  vertical;  fifth  ventral  segment  shorter,  sub- 
truncate 3. 

2.  Beak  long,  slender,  straight ORTHORIS. 

"      shorter,  less  slender,  curved RHOPTOBARIS. 

3.  Club  annulated,  entirely  pubescent 4. 


286  CUECULI0:N-ID^.  [LeConte. 

Clul)   with  first  joint    larger,   sliining,  claws 
divergent BARIS. 

4.  Claws  approximate,  frequently  connate 5. 

"       divergent,    larger,    last  joint   of    tarsi 

longer  than  usual 7. 

5.  Front  coxte  widely  distant,  body  nearly  glab- 

rous    6. 

Front  coxfe  not  widely  distant;  body  densely 

scaly \ ' TRICHOBARIS. 

(3.  Prothorax  strongly  constricted  near  the  tip. . .  8. 

feebly                "           "          "...  PSEUDOBARIS. 

7.  Second  joint  of  funicle  not  longer  than  third..  ONYCHOBARIS. 

longer AULOBARIS. 

8.  Front  thighs  not  toothed AMPELOGLYPTER. 

obtusely  toothed MADARUS. 

ORTHORIS  n.  g. 

This  genus  contains  a  sparsely  pubescent  species  from  California,  which 
has  a  singular  resemblance  in  form  to  Orchesies.  It  differs  from  the  other 
genera  of  this  subtribe  by  the  beak  being  long,  slender,  cylindrical  and  not 
curved;  it  is  separated  from  the  front  by  a  transverse  impression,  as  usual. 
The  antennae  are  inserted  about  two-fifths  from  the  end  of  the  l)eak,  the 
scape  does  not  quite  reach  the  eyes;  the  first  joint  of  the  funicle  is  stouter 
and  longer  than  the  others,  which  are  nearly  equal;  the  club  is  elongate- 
oval,  as  long  as  the  joints  2-7  of  the  funicle,  and  entirely  pubescent  and 
sensitive.  The  front  coxae  are  nearly  contiguous  and  the  prosternum  is 
broadly,  though  not  deeply  sulcate  in  front.  The  legs  are  rather  long  and 
slender,  tibife  not  mucronate  at  tip;  the  third  joint  of  the  tarsi  broad  and 
deeply  bilobed;  claws  simple,  divergent.  The  prothorax  is  as  long  as  wide, 
gradually  narrowed  in  front,  with  sides  perfectly  straight.  Elytra  wider 
at  base  than  the  prothorax,  humeri  prominent,  sides  parallel,  tips  separately 
rounded,  pygidium  exposed,  obliquely  declivous;  fifth  ventral  longer  than 
the  preceding,  acutely  rounded  at  tip. 

1.  O.  Crotchii,  n.  sp. 

Elongate,  not  convex  above,  black,  moderately  shining,  sparsely  pubes- 
cent with  rather  coarse  whitish  hairs.  Beak  slender,  cylindrical,  nearly 
straight,  longer  than  the  head  and  prothorax,  sparsely  punctulate  towards 
the  tip,  more  stronglj^  towards  the  base;  head  convex,  sparsely  punctulate, 
frontal  constriction  deep.  Prothorax  as  long  as  wide,  I'egularly  narrowed 
from  base  to  tip,  which  is  only  one-half  as  wide  as  the  base;  sides  straight, 
disc  strongly  and  rather  densely  punctured,  with  a  "narrow  smooth  dorsal 
line.  Elytra  one-fourth  Avider  at  base  than  the  prothorax,  humeri  promi- 
nent, rounded,  sides  parallel,  tip  rounded;  strife  deep,  impunctured,  inter- 
spaces slightly  convex,  sparsely  punctulate.  Beneath  strongly  punctured, 
punctv;res  becoming  gradually  finer  upon  the  abdomen.  Length  3.5  mm. ; 
.14  inch. 


LcConte.]  BARmi.  'ZSl 

California,  locality  unknown;  several  specimens,  without  sexual  difter- 
ences. 

RHOPTOBARIS  n.  g. 

The  single  species  of  this  genus  resembles  closely  in  form,  sculpture  and 
pubescence  TricJiobaris  trinotata,  but  without  the  three  denuded  spots  at 
the  base  of  the  prothorax.  It  diifers  by  the  club  of  the  antennae  almost  as 
long  as  the  funicle,  elongate-oval,  entirelj^  pubescent,  and  very  indis- 
tinctly annulated;  the  first  joint  of  the  funicle  is  as  long  as  the  three  fol- 
lowing, and  stouter;  2-7  short,  gradually  a  little  broader.  Beak  as  long  as 
the  head  and  prothorax,  curved,  not  very  slender,  depressed  as  usual  at 
tip,  frontal  constriction  not  deep.  Front  cox*  moderately  distant,  prester- 
num not  impressed  nor  sulcate.  Elytra  elongate  oblong,  separately  rounded 
at  tip;  pygidium  exposed,  obliquely  declivous.  Last  ventral  segment  as 
long  as  the  third  and  fourth  united,  rounded  at  tip,  with  a  slight  tooth  at 
the  middle  in  (^,  as  in  Trichobaris.  Legs  slender,  tibiae  with  a  very  small 
apical  hook;  third  joint  of  tarsi  moderately  dilated,  bilobed;  last  joint  long, 
claws  rather  large,  divergent. 

1.  R.  canesens,  n.  sp. 

Oblong  elongate,  very  densely  and  rather  finely  punctured,  and  clothed 
with  brownish  gray  pubescence,  or  hair-like  scales.  Head  finely  punc- 
tured; beak  not  stout,  finely  punctured,  nearly  smooth  at  the  tip.  Protho- 
rax scarcely  longer  than  wide,  gradually  but  not  strongly  narrowed  from 
the  base,  sides  broadly  rounded,  base  broadly  subsinuate,  truncate  in  front 
of  the  scutellum.  Elytra  a  little  wider  than  the  prothorax,  strite  well 
marked;  interspaces  wide,  flat,  denselj"  and  rugosely  punctured.  Punctures 
of  under  surface  a  little  coarser  than  above.     Length  4  mm.;  .16  inch. 

Colorado,  four  specimens. 

TRICHOBARIS  n.  g. 

I  have  separated  as  a  distinct  genus,  certain  species  of  elongate  form  and 
densely  clothed  with  scales  or  pu])escence.  They  difter  from  other  genera 
of  the  group  by  the  following  characters:  Club  of  antennae  rather  small, 
oval,  entirely  pubescent,  first  joint  forming  about  one-half  of  the  mass.  The 
funicle  is  stout,  first  joint  longer,  others  equal  in  length,  but  gradually 
broader.  Beak  as  long  as  the  prothorax,  much  curved,  rather  stout,  quite 
gil^bous  at  base,  frontal  constriction  deep.  Elytra  separately  rounded  at 
tip.  Pygidium  vertical;  last  ventral  segment  scarcely  longer  than  the 
fourth;  with  a  small  apical  cusp  in  \j^.  Front  coxa3  very  narrowly  sepa- 
rated, prosternum  broadly  concave,  and  subsulcate  in  front  of  the  coxtv. 
Legs  slender,  tibia?  with  moderate  apical  hook;  tarsi  with  third  joint  mod- 
erately dilated,  bilobed,  last  joint  long,  claws  approximate  and  connate  at 
base. 
Scales  of  upper  surface  hair-like 2. 

"         "                "        oval;  i>rothorax  without  denuded 
basal  spots 1.  texana. 


288  OURCULIONLD^. 


[LeConte. 


2.  Pubescence  dense;  protliorax  with  three  denuded  ba- 
sal spots 2.  trinotata. 

Pubescence  thin,  prothorax  without  spots 3.  plumbea. 

t.  T.  texana,  n.  sp. 

This  species  in  every  respect  resembles  the  next,  except  in  being  clothed 
witli  a  dense  covering  of  whitish  scales,  which  on  the  upper  surface  are 
not  hair-like,  but  oval,  and  not  more  than  three  times  longer  than  wide. 
Beneath  the  scales  are  of  the  same  size  as  above,  and  a  little  broader.  The 
scutellum  is  concave,  black,  naked,  and  shining.  There  is  a  very  small 
denuded  basal  spot,  just  inside  ot  the  humeral  callus,  but  it  does  not  extend 
upon  the  prothorax;  the  striiB  are  fine,  and  almost  concealed  by  the  cover- 
ing of  scales.     Length  5  mm. ;  .20  inch. 

Texas,  Belfrage.  As  in  the  next  species,  the  third  and  fourtli  ventral 
segments  are  smooth  and  shining  at  the  middle. 

2.  T.  trinotata  Say,  Cure.  17;  ed.  Lee.  i,  280  {Baridhis);  Lee,  Proc. 
Acad.  Nat.  Sc.  Phila.  1868,  364;  Baridius  vestitus  Boh.,  Sch.  Curciii,  718; 
var.  B.  mucoreus  Lee,  Pr.  Ac.  1858,  79;  ibid,  1868,  364. 

Atlantic  district,  abundant  and  sometimes  injurious  to  potatoes. 

Specimens  from  Upper  and  Lower  California,  and  Arizona,  are  of  larger 
size,  and  the  proportion  of  oval  scales  on  the  under  surface  is  greater;  in- 
termediate forms  between  these  and  the  northern  individuals,  in  which  the 
vestiture  of  the  under  surface  is  almost  entirely  capillary,  occur  in  the 
Southern  States. 

3.  T.  plumbea  Lee,  Proc.  Acad.  Nat.  Sc.  Phila.  1868,  364  (Baridius). 
Maryland,  one  specimen.     Much  smaller  than  B.  trinotata,  more  finely 

and  less  densely  pubescent  above  and  beneath,  with  the  scales  oval  only 
upon  the  flanks  of  the  prothorax;  there  are  no  denuded  basal  spots.  The 
elytral  striae  are  deeper.     Length  3  mm.;  .12  inch. 

AULOBARIS  n.  g. 

I  have  separated  as  a  distinct  genus  some  specimens  from  the  Atlantic 
slope,  which  difter  from  Bar  is  proper  by  the  more  slender  antennae;  the 
first  joint  is  scarcely  stouter  than  the  second,  and  the  latter  is  quite  as  long 
as  the  first;  the  remaining  joints  (3-7)  are  gradually  slightly  wider  and  the 
club  is  elongate-oval,  uniformly  pubescent  except  at  the  base  of  the  first 
joint,  and  not  large.  The  beak  is  longer  than  the  prothorax,  cylindrical, 
slightly  compressed  towards  the  base,  and  not  very  slender.  The  front 
coxa;  are  rather  widely  distant,  and  the  presternum  is  deeply  and  broadly 
sulcate  in  front. 

The  body  is  more  convex  than  usual  in  Baris,  though  in  this  respect,  the 
species  resemble  Pseudobaris  farcta.  The  under  surface  is  coarsely  punc- 
tured, with  a  small  white  hair  in  each  puncture. 

These  species  represent  group  B  of  my  synoptic  table  in  Proc.  Ac.  Nat. 
Sc.  Phil.  1868,  364,  and  may  be  distinguished  as  follows: 


LcConte.]  BAEINT.  289 

Brown,  sides  of  protliorax  broadly  rounded 1.  scolopax. 

Black,         "  "  strongly       "       2. 

2.  Protliorax  coarsely,  less  densely  punctured 4.  anthracina. 

less  coarsely  and  more  densely  punctured  3. 

3.  Elytral  interspaces  transversely  rugose  and  punctu- 

Lite 2.  ibia. 

Elytral  interspaces  with  single  rows  of  punctures. . .  3.  naso. 

1.  A.  scolopax  (Say),  Cure.  26;  ed.  Lee.  i,  295,  {Baridius);  Boh.,  Sch. 
Cure,  iii,  699. 

Illinois  and  Georgia,  four  specimens;  in  three  of  them  distinct  traces  of 
a  smooth  dorsal  line  are  seen  on  the  protliorax,  but  in  one  the  surface  is 
quite  uniformly  i)unctured.  The  elytra  become  gradually  wider  behind 
the  base  for  a  short  distance,  so  that  the  humeri  are  distinct,  though  very 
obtuse. 

2.  A.  ibis  Lee.  loc.  clt.  365. 

Georgia,  four  sjjecimens.  More  convex  than  the  preceding  and  very 
similar  in  form  to  Fsettdobaris  farctus.  The  humeri  are  rounded,  slightly 
prominent. 

3.  A.  naso    Baridius  nasutii,s\\Jjec.  loc.  cit.  295. 

One  specimen,  Kansas,  and  two  from  California  or  Arizona.  The  elytra 
are  not  wider  than  the  protliorax,  the  stritc  are  deeper,  tl;e  interspacea 
narrower,  and  each  is  marked  with  a  line  of  deep  punctures;  at  the  base  of 
the  third  and  fifth  inlerspaces  are  a  few  whiiish  hairs. 

I  regret  to  have  been  the  cause  of  confusion  by  having  previously  des- 
cribed another  Baridius  nasutus  from  Tejon,  Cal.,  (Pr.  Ac.  Nat.  Sc.  Phil. 
1859,  79).  On  reexamining  that  species  I  found  that  as  the  pygidium  was 
covered  by  the  elytra  it  did  not  belong  to  Baris;  though  I  inadvertently 
forgot  the  name  I  had  given  to  the  species  at  the  time  I  prepared  the  syn_ 
opsis  of  Baridius,  in  consequence  of  having  transferred  it  to  another  box 
with  the  other  species  of  C'entrinus. 

4.  A,  anthracina  (Boh.),  Sch.  Cure,  iii,  727  (Baridius). 

Oblong  oval,  shining,  black,  head  less  shining,  finely  punctured,  beak  as 
long  as  the  pi-othorax,  rather  slender,  moderately  curved,  finely  punctured 
above,  coarsely  punclured  at  the  sides;  club  of  antennae  rounded  oval,  shi- 
ning only  at  the  base.  Prothorax  coarsely  and  deeply  punctured,  more 
densely  at  the  sides,  which  are  nearly  parallel  for  two-thirds  the  length, 
then  suddenly  rounded  and  narrowed  to  the  apex,  which  is  cons'ricted  at 
the  sides;  dorsal  line  wanting.  Elytra  with  deep  stri;e,  interspaces  moder- 
ately wide,  flat,  each  with  a  row  of  shallow  punctures,  extending  across 
the  interspaces,  as  distinct  rugte.  Prosternum  deeplj-  sulcate,  with  tlie 
groove  sharply  defined  and  nearly  smooth.     Length  3.8  mm. ;  .15  inch. 

One  specimen  from  Florida;  Messrs.  Hubbard  and  Schwarz.  This  spe- 
cies has  the  rather  flat  upper  surface  of  true  Baris,  and  is  quite  diflferent  in 
form  from  the  other  three  above  mentioned. 

PROC.  AMEK.  PHILOS.  SOC.  XV.  96.  2k 


290 


CURCULIOXID^. 


[LeConte. 


BARIS  Germ. 

As  I  have  here  restricted  lliis  genus,  it  contains  onlj'  those  species  in 
which  the  club  of  the  antennae  is  small,  nearly  round,  with  the  first  joint 
not  sensitive,  shining,  and  constituting  more  tlian  one-half  the  mass.  The 
claws  are  separate,  divergent,  and  of  moderate  size,  and  in  some  of  the  spe- 
cies (sparsa,  &c.)  small.  The  beak  is  stout,  usually  short,  and  much  curved; 
the  frontal  constriction  rather  deep;  sometimes  it  is  a  little  longer  tlian 
the  prothorax.  The  front  coxaj  are  never  very  widely  separated;  the  pro- 
sternum  is  flat  or  broadly  sulcate  according  to  species.  The  pygidium  is 
vertical,  and  the  fifth  ventral  is  but  little  longer  than  the  fourth.  Tibiae 
strongly  mucrouate  at  tip.  The  species  are  glabrous  or  very  slightly  and 
sparsely  pubescent. 

Prosternum  narrow  between  the  coxse 2. 

"  moderately  wide 4. 

2.  Prothorax  gradually  rounded  on  sides ,      1.  strenua. 

"           more  suddenly  rounded  in  front  and 
constricted 3. 

3.  Humeral  callus  less  prominent 2.  umbilicata. 

"  "       more  prominent 3.  striata. 

4.  Prosternum  flat,  or  feebly  concave 5. 

"  broadly  subsulcate 6. 

5.  Form  narrow,  nearly  glabrous 11. 

"    oval,  nearly  glabrous 4.  subovalis. 

"    oblong,  nearly  glabrous 5.  transversa. 

"  "       pubescent,  more  finely  and  densely 

punctured 15,  prviinosa. 

6.  Pectoral  groove  coarsely  punctured 7. 

"            "      sparsely  punctured,  color  brassy, 
claws  smaller 9. 

7.  Color  slightly  brassy  8. 

"      black 6.  carinulata. 

8.  Interspaces  irregularly  punctulate 7.  subsenea. 

"  with  regular  rows 8.  tumescens. 

9.  Narrower 10. 

Stouter,  prothorax   verj'^   coarsely   and    sparselj'^ 

punctured 9.  nitida. 

10.  Prothorax  more  feebly  punctured 10.  interstitialis. 

"  "      strongly  and  denselj'  punctured  11.   conflnis. 

"  "  "  "    sparsely        "  12.  serea. 

11.  Prothorax  rather  sparsely  punctured 13.  sparsa. 

"  densely  "  14.  macra. 

1.  B.  strenua  (Lee),  Pr.  Ac.  Nat.  Sc.  Phil.  1868,  363,  (Barulim). 

Wisconsin,  Kansas,  New  Mexico.  This  species  resembles  in  form  and 
sculpture  B.  carinidatus  and  others  in  that  neighborhood,  but  is  easily 
known  by  the  prosternum  being  narrow  between  the  coxae,  and  flattened 


LeConte.] 


BAKINl.  291 


but  not  concave  in  front  of  them.  The  head  is  nearl}-  smooth,  tlie  beak 
coai-sely  punctured,  short  and  curved;  the  club  of  tlie  antentut;  is  round, 
with  fii"st  joint  shining.  Protliorax  ample,  rounded  on  the  sides,  more 
suddenly  narrowed  and  feebly  constricted  in  front;  punctures  of  usual  size, 
smooth  dorsal  line  distinct.  Elytra  very  li'tle  wider  than  protliorax,  stria; 
very  deep,  interspaces  elevated,  fiat,  each  wi.h  a  row  of  strong  punc:ures, 
which  are  approximate  and  furnished  with  very  small  white  hairs,  more 
obvious  than  in  an}^  of  tite  following  species;  they  are  somewhat  confused 
on  the  third  interspace. 

2.  B;  umbilicata  (Lee),  Pr.  Ac.  Nat.  Sc.  Phil.  1868,  363,  {Baridius). 
Two  specimens,  Pennsylvania.    This  species  resembles  the  next  in  every 

respect  except  that  the  prothorax  is  comparatively  larger,  and  the  humeral 
callus  of  the  elytra  less  prominent.  The  head  is  sparsely,  the  beak  strongly 
punctured,  the  club  of  the  antenni^  nearly  round,  with  the  first  joint  shi- 
ning. Prothorax  narrowed  in  front  from  the  base,  and  scarcely  rounded 
for  two-thirds  the  length,  then  suddenly  rounded  and  constricted  near  the 
tip;  punctures  unusuallj^  large,  umbilicated.  El^'tra  a  little  wider  than 
prothorax  at  base,  striae  verj^  deep,  interspaces  narrow,  elevated,  flat,  each 
with  a  row  of  strong  not  approximate  punctures.  Prosternum  very  narrow 
between  the  coxae,  broadl}"^  concave  and  coarsely  punctured  in  front  of 
them.     Beneath   coarsely  punctured,    finely  sparsely  pubescent.     Length 

5  mm.;  .30  inch. 

3.  B.  striata  (Say),  Cure.  17;  ed.  Lee.  i,  281;  Lee.  Pr.  Ac.  1868,  363. 
Michigan,  Illinois,  Kan.sas,  Arizona.     This  is  one  of  our  largest  species 

and  is  easily  recognized  by  the  comparatively  smaller  prothorax,  and  more 
prominent  humeral  callus.     The  prosternum  is  very  narrow  between  the' 
coxae,  flat  and  coarsel}^  punctured  in  front  of  them.     The  antennal  club  is 
nearly  round  and  the  first  joint  is  shining.     Length  5.5-6.5  mm.;  .22-.26 
inch. 

4.  B.  subovalis  (Lee),  Pr.  Ac.  Nat.  Sc.  Phil.  1868,  363,  (Baridim). 
One  specimen;   Wisconsin.     A  rather  large  species  of  oval  foi'm,  and 

shining  black  color.  Head  very  convex,  sparsely  punctulate;  beak  a  little 
longer  and  less  stout  than  in  the  following  eight  species,  much  curved, 
constricted  at  base,  strongly  punctured.  Prothorax  narrowed  from  the 
base  forwards,  then  more  suddenly  rounded  and  narrowed  to  the  tip,  which 
is  slightly  constricted  at  the  sides  ;  punctures  strong,  but  not  very  coarse, 
more  dense  at  the  sides,  dorsal  line  tlis'inct.  Elytra  scarcely  wider  than 
the  prothorax,  humeri  rounded,  not  prominent;  striae  deep,  interspaces  flat, 
finely  but  distinctly  punctulate,  punctures  of  the  third  interspace  confused, 
of  the  others  in  irregular  rows.  Prosternum  uniformly  coarsely  punctured, 
longitudinally  concave  or  broadly  sulcate  in  front;  front  coxae  moderately 
distant.     Antennae  with  club  nearly  round  and  first  joint  shining.    Length 

6  mm. ;  .24  inch. 

5.  B.  transversa  (Say),   Cure.  18,  {Baridius);  ed.  Lee.  i,   283;  Lcc, 
Pr.  Ac.  Nat.  Sc.  Phil.  1868,  363;  B.  quadraius  Lee,  ibid.  361. 


292  CUECULIO^ID^. 


[LeConte. 


Illinois  to  Kansas.  Body  oblong,  rather  elongate;  head  feeblj^  punCu- 
late,  beak  rather  finely  juinctured,  shori,  stout  and  much  curved;  frontal 
constriction  not  deep.  Prothorax  wider  than  long,  subquadratc,  very 
slightly  narrowed  from  the  base  for  three-fourths  the  length,  then  suddenly 
narrowed  to  the  tip,  which  is  scarcely  impressed  at  the  sides;  punctures 
coarse,  dense,  smooth  dorsal  line  narrow,  sometimes  obsolete.  Elylra  with 
deep  strife,  interspaces  flat,  strongly  and  confusedly  punctured,  forming 
here  and  there  transverse  rugosities.  ProsJernum  densely  and  coarsely 
punctured,  flattened  and  slightly  concave  in  front,  but  not  sulcate;  front 
coxae  moderately  distant,  antennaj  as  usual.     Length  4.5  mm.;  .18  inch. 

6.  B.  carinulata  (Lee),  Pr.  Ac.  Nat.  Sci.  Phil.  1858,  79;  ibid.  18G8, 
362,   {Baridms). 

One  specimen,  Texas.  Closely  allied  to  the  last,  but  the  dorsal  line  of 
the  prothorax  is  more  distinct,  and  the  punctures  of  the  elytra  are  irregular 
only  on  the  second  and  third  interspaces,  and  form  regular  rows  on  the 
others.  The  prosternum  is  longitudinally  concave,  and  subsulcate,  though 
the  limits  of  the  groove  are  not  well  defined;  the  punctures  are  also  less 
dense. 

7.  B.  subaenea  (Lee),  Pr.  Ac.  Nat.  Sc.  Phil.  1868,  361,  {BarMiux). 

Middle  States.  The  color  is  brassy  black,  the  beak  more  strongly  punc- 
tured, the  prothorax  not  wider  than  long,  coarsely  and  densely  punctured, 
with  faint  dorsal  line.  Elytra  with  deep  strife,  interspaces  confusedly 
punctured.  Prosternum  very  coarsely  punctured,  broadly  subsulca.e. 
Length  4.5  mm. ;  .18  inch. 

8.  B.  tumescens  (Lee),  Pr.  Ac.  Nat.  Sc.  Phil.  1868,  (Baridnis). 
New  York,  Illinois,  Louisiana,  Texas.     A  brassy  species  of  oblong  form, 

almost  like  B.  transversa,  with  the  prothorax  coarsely  punctured,  and  dor 
sal  line  obsolete;  the  beak  is  finely  punctured.  Elytra  with  deep  s  rite,  in 
terspaces  narrow,  each  with  a  row  of  fine  punctures,  which  are  confused 
upon  the  third.  Prosternum  coarsely  punctured,  broadly  subsulcate. 
Length  4-4.5  mm.;  .16-18  inch. 

9.  B.  nitida,  n.  sp. 

Oblong-oval,  shining  black  wi;h  a  bronze  tint.  Head  convex,  scarcely 
perceptibly  punctulate;  beak  short,  s'out,  curved,  finely  punctured,  frontal 
constriction  well  marked.  Prothorax  not  wider  than  long,  gradually  nar- 
rowed from  the  base  for  two-thirds  the  length,  then  rounded  and  more  sud- 
denly narrowed  to  the  tip,  which  is  not  at  all  impressed  on  the  sides;  disc 
very  coarsely  but  sparsely  punctured,  without  trace  of  smooth  dorsal  line. 
Elytra  scarcely  wider  than  prothorax,  strife  deep,  interspaces  rather  wide, 
each  with  a  single  series  of  well  impressed  distant  punctures.  Prosternum 
at  the  middle  broadly  but  distinctly  sulcate  and  sparsely  punctured;  flanks 
broadly  concave,  so  that  the  lateral  edge  is  somewhat  dis.inct;  front  coxfc 
moderately  distant.     AntenniE  as  usual.     Length  4.6  mm.;  .18  inch. 

One  specimen,   Florida;  Dr.  Edward  Palmer.     Very  distinct  from  all 


Le  Co  lite.  J 


BARIN^I.  2'.)3 


others  in  our  fauna.  I  observe  in  this  aud  the  three  following  species  a  ]ie- 
cnliarity,  wliich  is  extremely  rare  among  GurcuUonida>,  and  in  fac^  amou'^ 
Rhynchophora;  tlie  tlanlis  of  tlie  prot'iora.x  are  very  suddenly' intlexed,  and 
slightly  concave,  so  that  the  side  margin,  though  not  w.ll  defined  by  a 
sharp  line,  is  still  distinctly  indicated. 

10.  B.  interstitialis  (Boh.),  Sch.  Cure  iii,  684,  (^Baridiu^)-/!  (n/ii/n- 
climnm  int.)  Say,  Journ.  Acad.  Nat.  Sc.  Phil,  iii,  314;  ed.  Lee.  ii,  170; 
BaridiuH  int.  Say,  Cure.  18;  ed.  Lee.  1,  282. 

Middle  and  Southern  States.  I  have  retained  this  name  for  a  species 
which  is  quite  distinct  from  all  others  in  our  fauna.  The  well  uiarked 
structural  characters  which  enable  our  species  of  Bar  is  to  be  easily  sepa- 
rated, were,  however,  not  perceived  by  Say,  nor  by  the  collaborators  of 
Schonherr,  and  I  am  therefore  doubtful  if  the  present  name  should  be  jirt- 
served.  As  far  as  I  can  judge  from  the  descriptions,  this  spec  es  is  the  one 
intended  by  Boheman,  founded  upon  a  typical  specimen  from  Florida  sent 
by  Say,  and  on  others  from  Soulli  America.  But  I  am  very  uncertain  if  it 
be  the  one  originally  described  by  Say,  and  quite  doubtful  if  that  original 
be  the  same  with  the  one  subsequently  referred  to  (Cure.  18),  of  which  it 
is  said  that  the  punctures  of  the  elytral  inlerspaces  "have  a  transverse 
rugulous  appearance."  In  the  original  description  (J.  Ac.  iii,  314),  these 
same  punctures  are  declared  to  be  orbicular. 

Head  sparsely  punctulate,  beak  finely  punc'ured,  frontal  constriction 
strong;  prothorax  strongly  but  not  densely  punctured,  scarcely  wider  than 
long,  slightly  narrowed  from  the  base  for  two-thirds  th^-  length,  then  more 
suddenly  rounded  and  narrowed  to  the  tip,  which  is  feebly  impressed  at  she 
sides.  Elj'tra  with  deep  striae,  interspaces  fla",  each  with  a  row  of  very 
fine  punctures,  somewhat  confused  on  the  third  interspace,  and  nearly  ob- 
solete in  some  specimens.  Prosternum  at  the  middle  broadly  but  rather 
deeply  sulcate,  and  more  sparsely  punctured.  Antennae  as  usual.  Len>^th 
3.3  mm.;  .13  inch. 

The  color  is  black,  slightly  bronzed. 

11.  B.  conflnis  (Lee),  Pr.  Ac.  Nat.  Se.  Phil.  1868,  362,  (Baridius). 
Atlantic  States,  to  Kansas.     Very  closely  related  to  B.  interstitiali",  but 

more  brassy,  smaller  and  a  little  narrower,  with  the  punctures  of  the  pro 
thorax  larger  and  less  distant.  The  punctures  of  the  int'^rspaces,  though 
fine,  are  distinct,  and  arranged  in  rows,  those  of  the  third  interspace  are 
not  confused.     Length  3  mm.;  .12  inch. 

12.  B.  serea  (Boh.),  Sch.  Cure,  viii,  1st,  141,  (Baridiun);  Lac,  Pr.  Ac. 
Nat.  Sc.  Phil.  1868,  362. 

Southern  States.  Narrower,  usually  smaller,  brighter  brassy,  with  the 
punctures  of  the  prothorax  strong,  but  less  dense,  and  those  of  the  ely  ral 
interspaces  extremely  small  and  distant,  placed  in  single  rows.  Length 
3.5-3.3  mm.;  .10-.  13  inch. 

13.  B.  sparsa  (Lee),  Pr.  Ac.  Nat.  Sc.  Phil.  1868,  384,  (Buridim). 
Oregon  and   California,   three  specim?ns.     Though  the  prosternum  is 


294  CUECULIONID^. 


[I.eConle. 


nearly  flat,  and  coarsely  punclured  in  this  species,  I  have  thought  it  belter 
to  separate  it  from  B.  subovalis  and  tru/isver.'Hi,.'i  on  account  of  the  narrower 
form,  which  approaches  that  of  i?.  cerea.  The  prothorax  is  however  more 
regularly  rounded  on  the  sides,  and  is  fully  as  long  as  wide;  the  ])uijctures 
are  coarse  but  not  dense.  The  elytral  strite  are  less  deep  than  usual  and 
the  punctures  of  the  interspaces  are  well  marked;  these  punctures  are  finer 
and  more  distant  in  the  specimen  from  Oregon,  than  in  those  from  Califor- 
nia. The  latter  being  better  preserved  show  fine  but  distinct  whie  hairs 
proceeding  from  each  interstitial  puncture.  The  thoracic  smooth  dorsal 
line  is  very  distinct  in  the  Californian,  but  almost  obsolete  in  the  Oregon 
specimen.  A  larger  series  of  specimens  will  show  that  these  difterences 
are  individual  rather  than  specific.     Length  3  mm. ;  .12  inch. 

14.  B.  macra  (Lee),  Pac.  R.R.  Expl.  and  Surv.  Ins.  58,  (Bdridiufs); 
Pr.  Ac.  Nat.  Sc.  Phila.  1868,  362. 

San  Francisco,  Gal.,  three  specimens.  Nearly  related  to  B.  itpurm,  and 
of  the  same  narrow  form.  The  pmthonvx  is  liowever  more  densely  punc- 
tured, withiHit  dorsal  smooth  line.  The  punctures  of  the  interspaces  of 
the  elytra  are  very  small,  and  upon  the  third  are  somewhat  confused.  Pro- 
sternum  between  the  coxae  not  very  wide,  slightly  longitudinally  concave, 
but  scarcely  subsulcate.     Length  3.5  mm.;  .14  inch. 

15.  B.  pruinosa,  n.  sp. 

Rather  robust,  ovalsubquadrate,  black,  pruinose  with  small  narrow- 
white  scales,  some  of  which  are  hair-like.  Head  naked,  nearly  smooth; 
beak  shorter  than  prothorax,  stout,  curved,  punctured,  pubescent,  constrict- 
ed at  base.  Prothorax  scarcely  longer  than  wide,  gradually  narrowed  from 
tlie  base  for  two-thirds  the  length,  then  more  rapidly  to  the  tip,  wbich  is 
constricted  on  the  sides;  disc  densely  but  not  coarsely  punctured,  scutellar 
lobe  larger  than  usual,  emarginate;  dor.sal  line  indistinct,  or  wanting.  Ely- 
tra gradually  a  little  wider  than  the  prothorax,  striae  deep,  in'.erspaces  flat, 
wide,  densely  punctured.  Beneath  densely  punctured.  Front  coxa-  mod- 
erately separated,  prosternum  slightly  concave,  not  sulcate.  Club  of  an- 
tennse  nearly  round,  with  first  joint  slightly  pubescent,  but  shining.  Li  ngth 
4.5  mm.;  .18  inch. 

Texas,  Belfrage,  not  rare.  The  third  joint  of  the  tarsi  is  broader  than 
usual,  and  the  claws  larger,  thus  showing  a  titinsition  towards  Onychobaru, 
but  the  club  of  the  antenna?  is  of  the  present  genus. 

ONYCHOBARIS  n.  g. 

Under  this  name  I  would  group  those  species  in  which  the  club  of  the 
antennae  is  more  oval,  enth-ely  sensitive  and  pubescent,  the  first  joint  form- 
ing less  than  one-half  the  mass;  the  second  joint  of  the  funicle  not  longer 
than  the  third;  and  the  claws  divergent  and  larger  than  usual. 

In  other  respects  this  genus  agrees  with  Bttrk,  and  the  species  may  be 
classified  similarly,  though  the  front  coxa^  are  usually  much  more  widely 
separated  than  in  Baru. 


LeConte.] 


BARINI.  295 


Interspaces  of  elytra  with  rows  of  punctures 2, 

Interspaces  of  elytra  densely  punctured,  and  thinly  pu- 
bescent    1.  densa. 

2.  Prosternuni  very  wide  between  the  coxae 3. 

"         moderately  wide  between  the  coxae 6. 

3.  Black,  glabrous,  or  nearly  so = 4. 

Dull  black,  finely  pruinose 2.  subtonsa. 

4.  Prothorax  without  smooth  dorsal  line 3.  pectorosa. 

"           with  broad  dorsal  line 4.  distans. 

Much  smaller  and  narrower 5.  seriata. 

5.  Sparsely  pubescent;  very  coarsely  cribate 6.  cribrata. 

Prothorax  plicate,  elytra  with  pattern  of  large  narrow 

scales 7.  rugicollis. 

1.  O.  densa  (Lee),  Pr.  Acad.  Nat.  Sc.  Phil.  1859,  79;  ibid.  1868,  362. 
San  Diego,  Cal.,  three  specimens.     Broader  and  less  finely  pubescent 

tlvan  0.  subtonsa,  wdth  the  prothorax  more  coarsely  punctured  and  subra 
rinate;  it  is  gradually  narrowed  in  front  from  the  base  for  two-thirds  tl.e 
length,  then  rapidly  narrowed  to  the  apex,  which  is  distinctly  constric'ed. 
Head  punctured  in  front,  smooth  behind.  Striae  of  elytra  deep,  interspaces 
flat,  irregularly  punctured.  Beak  as  long  as  prothorax  and  not  stout;  club 
of  antennae  oval,  entirely  pubescent  and  sensitive.  Front  coxae  widely 
separated,  prosternum  flat,  densely  and  coarsely  punctured.  Length  4  mm. ; 
.16  inch. 

2.  O.  subtonsa,  n.  sp. 

Less  robust,  dull  black,  pruinose  with  very  fine  whitish  pubescence, 
more  evident  on  tlie  elytra  than  on  the  prothorax.  Head  punctured  ini 
liont,  nearly  smooth  behind,  beak  longer  than  in. the  preceding.  Prothorax 
scarcely  wider  than  long,  sides  parallel  for  two-thirds  the  length,  then  rap- 
idly narrowed  and  rounded  to  the  apex,  which  is  feebly  constricted  at  the 
sides:  disc  densely  punctured,  each  puncture  with  a  small  hair  at  the  bot- 
tom; antescutellar  lobe  broad,  not  emarginate.  Elytra  scarcely  wider  than 
the  prothorax,  striae  deep,  interspaces  flat,  each  with  a  row  of  small  punc- 
tures. Front  coxae  widely  separated;  prosternum  nearly  flat.  Length 
4  mm.;  .16  inch. 

Texas,  Belfrage,  one  specimen. 

3.  O.  pectorosa,  n.  sp. 

Ova*e,  narrower  behind,  black,  nearly  glabrous  above.  Head  sparsely 
punctulate;  beak  as  long  as  the  prothorax;  rather  slender,  punctulate, 
much  curved  at  base,  frontal  constriction  deep.  Prothorax  larger  than 
usual,  wider  than  long,  slightly  narrowed  from  the  base  for  two-thirds  the 
length,  then  rapidly  narrowed  to  the  tip,  which  is  constricted  at  the  sides; 
disc  rather  closely  but  not  coarsely  punctured;  scutellar  lobe  more  promi- 
nent than  usual,  truncate.  Elytra  at  base  not  wider  than  prothorax,  grail- 
ually  narrowed  behind;  striae  deep,  interspaces  flat,  each  with  a  row  of 


236 


CJinCUIAONIDM.  [LeConte. 


strongly  marked  punctures.  Prosternum  very  wide  between  the  coxae, 
coarsely  punc  ured,  wi  h  two  slight  longitudinal  impressions  in  front. 
Length  4  mm.;  .15  inch. 

Texas,  Belfrage,  one  specimen. 

4.  O.  distans  (L-c),  Pr.  Ac.  Nat.  Sc.  Phil.  1868,  363,  {Baridim). 
New  Mexico,  Fendler,  one  specimen.    Oval  subquadrate,  black,  scarcely 

sliining,  glabrous.  Head  sparsely  punc  ulate;  b?ak  punctulate,  as  long  as 
the  protliorax,  not  stout,  r^;gularly  and  s  rongly  curved,  fron  al  constriction 
feeble.  Prothorax  sudd:'nly  narrowed,  rounded  on  the  sides  in  front,  and 
constricted  at  I  he  sides  near  the  tip;  punctures  distant  on  the  disc,  more 
dense  towards  tlie  sides;  smooth  dorsal  line  very  dis  inc'.  Elytra  with 
deep  stria?,  interspaces  tla*,  ratlier  wide,  wi  h  rows  of  shallow  dis  ant  punc- 
tures, which  are  more  evid  nt  than  usual.  Pros  ernum  very  wide  between 
the  coxse,  cmrsely  and  spars.dy  puuctured,  broadly  concave  in  front,  with 
two  small  impressions.     L  "ngtli  3.3  mm.;  .13  inch. 

5.  O.  seriata  (Lee),  Pac.  R.  R.  Expl.  and  Surv.  Ins.  58;  Pr.  Ac.  Nat. 
Sc.  Phil.  1868,  363,  {Burklim). 

San  Francisco,  Cal. ;  one  specimen.  A  small,  shining  black  species  of 
narrow  form,  resembling  in  this  resp  c'  the  next,  as  well  as  Baris  t^parsa, 
and  Pseudob'iris  angusta.  From  the  last  two  it  is  easily  distinguisiied  by 
tlie  generic  cliaracters;  from  0.  macra  i.  is  readily  known  by  the  more  dis- 
tant front  coxte.  Ths  prosternum  is  as  wide  as  in  the  two  preceding  spe- 
cies, flat  and  coarsely  punctured,  wi  hout  impressions.  The  third  joint  of 
tke  tarsi  is  less  broadly  dilated. 

Head  dull,  feebly  punctulate;  beak  as  long  as  the  prothorax,  not  stout, 
rugosely  punctured,  regularly  curved,  frontal  constriction  faint.  Pro  bo- 
rax scarcely  longer  than  wide,  sides  rounded  in  front,  and  scarcely  con- 
stricted; punctures  strong,  and  dense,  without  smooth  dorsal  line.  Elytra 
with  rather  narrow  striae,  interspaces  flat,  each  with  a  row  of  small  distant 
punctures.     Length  2.5  mm. ;  .10  inch. 

6.  O.  cribrata,  n.  sp. 

Elongate,  brownish  black,  shining,  sparsely  clothed  with  ra+her  cf)arse 
wjiite  reclinate  hairs.  Head  smooth,  beak  short,  not  longer  than  the  pro- 
thorax, stout,  curved,  punctured,  strongly  ccuistricted  at  base.  Prothorax 
quadrate,  wider  than  long;  sides  parallel,  suddenly  narrowed  and  rounded 
near  tlie  lip;  very  coarsely  punctured,  and  smooth  dorsal  line  narrow,  but 
distinct.  Elytra  a  little  wider  than  the  prothorax,  sides  parallel,  rounded 
at  the  tip,  stria3  deep,  interspaces  narrow,  each  witli  a  row  of  rather  distant 
small  punctures,  from  which  proceed  white  hairs.  Benea'h  coarsely  punc- 
tured, punctures  becoming  smaller  and  dis  ant  upon  the  abdomen.  Length 
3.3  mm.;  .125  inch. 

Texas,  Belfrage,  two  specimens.  The  front  coxne  are  moderately  dis- 
tant, as  in  most  of  the  glabrous  species;  the  prosternum  is  slightly  concave. 
The  club  of  the  antennaj  is  short  oval,  and  the  first  joint  constitutes  more 
than  one  half  the  mass  and  is  somewhat  shining.     In  the  best  preserved 


LeConte.] 


BAKINI.  2D7 


.specimen  the  pubescenca  is  more  dcns3  at  the  third  interspace,  and  on  the 
secjud  t.)  the  fifth  interspaces  for  a  slijrt  dis:auce  beliind  the  middle. 

7.  O.  rugicollis,  n.  sp. 

Oblong  oval,  brownis'.i-black,  above  \vi!h  scattered  elongate  yellow 
scales,  which  on  the  elytra  form  an  indefinite  pattern  of  a  transverse  band 
at  the  base,  and  another  just  behind  the  middle  connec  ed  by  some  less 
densely  placed  scales.  Head  convex,  n  'arly  smooth,  beak  as  long  as  the 
pro  hora.v:,  attenuated  towards  the  tip,  strongly  curved,  punctured,  fr,)ntal 
oonstrictijn  d  ep.  Prothorax  wider  than  long,  feebly  narrowed  from  the 
base  for  two  thirds  tin  length,  rounded  on  the  sides,  slightly  constric  ed 
near  the  tip;  very  deeply  and  oarsely  rugose,  leaving  narrow  eleva'ed 
folds,  much  as  in  RhyssematuH;  there  are  a  few  scattered  yellow  hair  like 
scales;  base  scarcely  sinuate.  Elytra  a  little  wider  at  base  than  the  protho- 
rax, gradually  nai'rowed  be'.iind,  scarcely  separately,  but  almost  conjointly 
rounded  at  tip;  s'.rite  deep,  interspaces  flat,  each  with  a  row  of  small  dis- 
tant punctures.  Prosternum  very  broad  between  the  coxae,  coarsely  punc- 
tured, mark:'d  in  front  with  two  lines  converging  behind,  and  enclosing  a 
smooth  triangular  space.  Club  of  antenni3e  small,  oval  rounded,  pubescent; 
claws  divergent.     Length  4.2  mm.;  .17  inch. 

]\Iiddle  and  Southern  States.  The  pygidium  is  less  exposed  than  usual, 
but  is  perpendicular,  so  that  this  species  cannot  be  confounded  with  Cen- 
trinus,  in  which  it  is  nearly  horizontal,  or  at  most  oblique. 

PSEUDOBARIS  n.  g. 

The  species  of  this  genus  have  the  second  joint  of  the  funicle  no  longer 
than  the  third,  and  the  club  not  larger,  oval,  with  the  first  joint  pubescent 
and  sensi  ive,  and  constituting  less  than  one-half  the  mass;  the  claws  are 
approximate  and  slightly  connate  at  base.  In  these  respects  they  agree 
with  I'richoharis,  but  differ  by  the  front  coxae  being  very  widely  sepa- 
rated, and  by  the  absence  of  dense  scaly  or  hairy  vestiture,  though  there 
are  a  few  scattered  scales  on  the  elytra  of  each  species.  The  prosternum  is 
broadly  sulcate  in  front;  the  limits  of  the  groove  are  less  sharply  defined  as 
in  Aulobaris. 

Body  elongate-oval,  punctures  of  interspaces  in  rows  2. 

"       stouter  convex,  confused 1.  farcta. 

3.  Elytral  punctures  large,  shallow 3. 

"  "  small 4. 

3.  Prothorax  with  sides  slightly  oblique 2.  nigrina. 

"  "         "     nearly  parallel 3.  angusta. 

4.  Side  piec  ■«  of  body  densely  squamose 5. 

"         "  "       not  squamose 4.  pusilla. 

5.  Bi'own,  pro'horax  with  smooth  dorsal  line 5  albilatus. 

Black,  prothorax  without  dorsal  line 6.  T-signum. 

1.  P.  farcta  (Lee),  Pr.  Ac.  Nat.  Sc.  Phil.  186S,  362,  (Baridim). 
Kansas,  Colorado,  and  Texas.     A  robust  convex  species,  having  the  ap- 
PHOC.  AMEK.  PUILOS.  SOC.  XV.  96.  2r, 


298  curculio:n^id^. 


[LeConte. 


pearance  of  Centrinus.  The  prosternum  is  broadly  and  tolerabl}'  deeply 
sulcatc,  thus  showing  a  tendency  towards  Aulobaris,  wliich  it  resembles  in 
appearance,  though  the  limits  of  the  groove  are  ill-defined.  The  second 
joint  of  the  funicle  is  however  no  longer  than  the  third.  The  base  of  the 
third  interspace  of  the  elytra  has  a  small  scaly  spot,  and  there  are  also  scat- 
tered hair-like  scales.  The  stri*  are  deep,  the  punctures  of  the  interspaces 
are  transverse  and  rather  confused.     Length 4-5  mm.;  .16-20  inch. 

2.  P.  nigrina  (Say),  Cure.  31;  ed.  Lee.  1,  295,  (Baridius);  Boh.,  Sch. 
Cure,  iii,  690;  Boh.,  ibid,  viii,  154;  Lee,  Pr.  Ac.  Nat.  Sc.  Phil.  1868,  363. 

Southern  States.  The  white  scales  are  very  sparse,  and  easily  removed; 
they  are  arranged  singly  upon  the  interspaces,  except  at  the  base  of  the 
third  interspace,  where  they  form  a  small  spot.  The  prosternum  is  broadly 
and  deeply  sulcate;  the  groove  is  sparsely  punctured,  and  sharply  limited. 
Length  3-4  mm. ;  .12-16  inch. 

3.  P.  angusta  (Lee),  Pr.  Ac.  Nat.  Sc.  Phil.  1868,  363,  (Baridim). 
This  species,  from  the  material  now  at  my  command  seems  separable 

from  P.  nigrina  only  by  its  narrower  form,  the  sides  of  the  prothorax  nearly 
parallel  behind,  and  by  the  entire  absence  of  smooth  dorsal  line  of  the  pro- 
thorax.  Specimens  from  Texas  which  are  clearly  referable  to  P.  nigrina, 
vary  in  the  last  mentioned  character,  the  dorsal  line  being  either  distinct  or 
obsolete,  so  that  only  the  form  of  body  remains  to  distinguish  th;'m  apart. 
Length  2.7-3.3  mm. ;  .11-.  13  inch.     Illinois  to  Kansas. 

In  one  specimen  a  few  scales  remain,  indicating  a  vestiture  similar  to  the 
preceding.  On  re-examining  the  specimens  I  find  my  former  observation 
that  the  second  joint  of  the  funicle  is  longer  than  the  third  is  incorrect. 

4.  P.  pusilla  (Lee),  Pr.  Ac.  Nat.  Sc.  Phil.  1868,  368,  {Baridim). 
New  York,  one  specimen.     Allied  to  P.  nigrina,  but  more  oval  and  less 

elongate,  with  the  punctures  of  the  prothorax  less  coarse,  and  without 
smoo  h  dorsal  line;  the  sides  are  also  more  oblique.  Head  and  beak  sparsely 
finely  punctured;  the  latter  as  long  as  the  prothorax,  rather  slender,  very 
slightly  curved.  Elytra  with  deej)  slri«,  and  rather  wide  flat  interspaces, 
each  with  a  row  of  fine  but  distinct  punctures;  the  specimen  is  rubb-'d,  but 
a  few  white  scales  are  visible  at  the  base  of  the  third  interspace,  wiiich  in- 
duce me  to  believe  that  in  well  preserved  specimens  they  are  scattered  as  in 
the  preceding  species.  The  prosternum  is  broadly  and  strongly  sulcate, 
and  sparsely  punctured,  but  the  edges  of  the  groove  are  less  sharply  defined 
than  in  P.  nigrina.     Length  2.5  mm.;  .10  inch. 

5.  P.  albilatus,  n.  sp. 

Elongate,  brown,  shining;  with  a  small  elongate  spot  at  the  base  of  the 
third  interspace,  and  the  side  pieces  of  meso-  and  metathorax  densely 
clothed  with  white  scales.  Beak  punctured,  feebly  striate  near  the  base; 
head  finely  punctured.  Prothorax  a  little  longer  than  wide,  rounded  on 
the  sides  in  front,  not  constricted  at  tip;  disc  coarsely,  rather  dens  ly  punc- 
tured, with  a  narrow  smooth  dorsal  line.     Elytra  not  wider  than  the  pro- 


leConte]  BAUmi.  299 

thorax,  s'ruE  narrow,  deep,  iraiiunctured;  interspaces  flat,  each  with  a  row 
of  extremely  small  puucLUies;  third  interspace  clolhed  for  one-fifth  the 
lengtli  with  white  scales.  Beneath  strongly  punctured;  sides  of  the  last 
three  ventral  segments  clothed  wiJi  white  scales.  Length  2-3  mm.;  .08 
-.12  inch. 

Enterprise,  Florida;  Messrs.  Hubbard  and  Schwarz.  The  specimens  are 
somewhat  abraded,  but  in  one  of  them  I  observe  scattered  whiie  scales  re- 
maining on  the  pi'othorax  and  elytra.  It  is  quite  probable,  therefore,  that 
well  preserved  individuals  are  marked  as  in  the  next  species,  from  which 
it  differs  chiefly  by  the  larger  size,  brown  color,  smooth  dorsal  stripe  on  the 
prothorax,  and  fine  punctures  of  the  interspaces  of  the  elytra. 

a.  p.  T-signum  (Boh.\  Sell.  Cure,  viii,  1st,  154,  (Baridius). 

Sou;h  Carolhia,  Zinimermann;  Florida,  Hubbard  and  Schwarz.  Much 
smaller  and  still  narrower  than  P.  nigrina.  '  Head  finely  punctulate,  beak 
stout,  strongly  curved,  as  long  as  the  prothorax,  punctured,  frontal  con- 
striction feeble.  Prothorax  scarcely  longer  than  wide,  subquadrate,  sides 
not  oblique,  feebly  rounded  for  three-fourths  the  length,  then  more  suddenly 
rounded  and  narrowed  to  the  tip,  densely  and  strongly  punctured,  without 
dorsal  line.  Elytra  wider  than  the  prothorax,  humeri  oblique,  distinct; 
striae  deep,  interspaces  flat,  each  with  a  row  of  flne  but  distinct  punctures; 
a  short  line  of  while  scales  at  the  base  of  the  third  interspace,  (and  a  small 
spot  behind  the  middle,  probably  rubbed  off  in  the  specimen  before  me), 
metasternal  side  pieces  and  of  the  last  ventral  segments  clothed  with  small 
white  scales.  Prosternum  not  so  wide  between  the  coxa;  as  in  the  other 
species,  broadly  and  less  deeply  sulcate  in  front,  club  of  the  antennte  rather 
larger  than  usual.     Length  2.2  mm.;  .085  inch. 

In  well  preserved  specimens  the  surface  is  clothed  with  scattered,  small 
white  scales,  which  are  more  dense  at  the  sides  of  the  prothorax,  at  the 
base  of  the  third  interspace  of  ihe  elytra,  and  the  side  pieces  of  the  meso- 
and  metathorax,  and  at  the  sides  of  last  three  ventral  segments.  These 
scales  are  however  easily  abraded. 

AMPELOGLYPTER  n.  g. 

This  genus  contains  species  which  depredate  on  the  small  stems  of  grape 
vines  and  allied  plants,  producing  excrescences.  Two  of  them  are  readily 
distinguished  from  the  preceding  genera  by  the  smooth  and  shining  surface 
of  the  elytra,  the  interspaces  of  whleh  are  wide  and  not  punctured;  the 
striae  are  fi.ne,  the  posterior  callus  promment,  and  the  surface  undulated  by 
broad  transverse  impressions.  In  these  respects  they  resemble  Madams, 
but  differ  by  the  shorter  and  stouter  beak,  the  stouter  antennae,  and  the 
broadly  excavated  prosternum,  which  is  not  suddenly  declivous  between 
the  coxae.  The  front  thighs  are  not  toothed,  and  the  claws  are  connate  at 
base . 

The  form  is  also  quite  different  from  Madams;  the  elytra  are  a  little 
wider  than  the  prothorax,  as  in  Darts. 


300  CURCULIONID^.  [LeC.nte. 

The  front  coxae  are  very  widely  separated;  tlie  transvere  suture  between 
the  coxaj  is  very  well  marked,  and  the  prosternuni  is  widely,  hut  not  deeply 
excavated;  club  of  antenna?  elongate-oval,  annulated,  pubescent. 

Three  species  are  known  to  me: 
Elytral  striie  not  punctured; 

Brown,  prothorax  obliquely  narrowed  from  the  base      1.  s3SOStris. 

Black,  "         suddenly         "         near  the  tip..  2.  ater. 

Elytral  striae  crenate;  body  elongate,  brown,  opaque. .. .      3.  crenatus 

1.  A.  Sesostris  (Lee),  Pr.  Ac.  Nat.  Sc.  Phil.  1838,  364  (Barid'us); 
Walsh,  Am.  Entomologist,  ii,  105.  Madurus  vitis  Riley,  1st  Missouri  Re- 
port, 131. 

Western  States,  on  cultivated  vines.  Somewhat  narrower  than  the  next, 
and  easily  known  by  the  brown  color  and  ditierent  form  of  the  jjrotliorax. 
Head  scarcely  punctulate,  beak  as  long  as  the  prothorax,  sliglitly  curved, 
feebly  punctured,  fi-ont  constriction  faint.  Prothorax  as  long  as  wide, 
sparsely  punctured,  with  a  smooth  dorsal  line,  sides  oblique  from  the  base 
for  more  th->n  one-half  the  length,  then  rounded  and  narrowed  for  a  short 
distance,  and  then  broadly  constricted  at  a  greater  distance  than  usual  from 
the  tip.  Elytra  very  little  wider  than  the  prothorax,  with  a  vague  trans- 
verse impression  near  the  base,  and  two  others  near  the  sides;  posterior 
callus  sniidl,  rather  prominent;  strite  fine,  interspaces  wide,  flat.  Beneath 
coarsely  punctured.     Length  3  mm. ;  .12  inch. 

2.  A.  ater,  n.  sp. 

Very  black,  shining;  beak  stouter  and  more  curved  than  in  the  prece- 
ding. Prothorax  more  sparsely  punctured,  more  rugose  at  the  sides,  which 
are  scarcely  narrowed  for  two-thirds  their  length,  then  very  suddenly 
rounded,  and  constricted  far  from  the  tip.  Elytra  a  little  wider  th-an  the 
prothorax  at  base,  sculptured  and  impressed  as  in  the  preceding.  Length 
3  mm.;  .12  inch. 

Southern  and  Western  States,  on  Ampelopi^in  quiyiquefoUa.  Mentioned 
as  Madams  ainpelopsis  by  Walsh  and  Riley,  loc.  eit.  sup.,  but  not  described. 

3.  A.  crenatus,  n.  sp. 

Elongate,  dull  ferruginous,  opaque.  Beak  curved,  as  long  as  the  head 
and  prothorax,  punctured;  head  not  punctured.  Prothorax  subquadrate, 
sides  parallel,  rounded  near  the  tip,  and  strongly  constric  ed,  base  bisinu- 
ate;  densely  and  coarsely  punctured,  constriction  nuirked  on  the  sides  with 
a  transverse  row  of  larger  punctures.  Elytra  a  little  wider  than  the  pro- 
thorax, sides  parallel,  surface  broadly  impressed  behind  the  base;  striae 
deep,  very  coarsely  punctured,  interspaces  narrow,  third  and  ninth  carinate 
near  the  tip,  and  confluent,  so  as  to  leave  a  deep  fovea  between  their  junc- 
tion and  the  posterior  callosity,  which  is  well  marked.  Beneath  coarsely 
punctured,  less  so  upon  the  abdomen;  fifth  ventral  less  convex  and  less 
densely  punctured  than  in  the  two  pi'eceding  species.  Claws  small,  con- 
nate for  half  their  leng'.h.     Length  2.8  mm.;  .11  inch. 

Virginia,  and  Maryland;  two  specimens.     Narrower  even  than  Fseudo 
buris  anguHta. 


LeContc. 


BAKIXl.  301 


MADARUS  Sell. 

In  this  genus  the  upper  surface  is  very  smooth  and  shining,  and  the  sur- 
face of  the  elytra  undulated,  but  the  beak  is  longer  than  the  prothorax  and 
slender,  almost  as  in  Cenfriiius;  the  antenntt  are  longer  and  more  slender, 
the  first  joint  of  the  funicle  as  long  as  the  three. following;  club  elongate 
oval,  annulated,  entirely  pubescent.  The  prosternum  is  extremely  wide 
and  gibbous  between  the  coxa?;  declivous  in  front,  not  excavated,  but,  with 
two  very  short  impressions.  Front  thighs  armed  with  an  obtuse  tooth, 
claws  approximate,  but  not  connate  at  base. 

The  preceding  genus  makes  a  gradual  transition  from  Bm-ix  to  Madanos, 
and  the  arrangement  of  Lacordairc  by  which  the  genera  just  named  are 
separated  in  two  different  subtribes  is  manifestly  unnatural. 

1.  M.  undulatus  Boh.,  Sch.  Cure,  iii,  640;  Bliynchmnus  un-d.  Saj', 
Journ.  Ac.  Nat.  Sc.  Phil,  iii,  315;  ed.  Lee.  ii,  177. 

Massachusetts  to  Alabama,  Texas,  and  Kansas.  The  northern  specimens 
are  entirely  black;  those  from  the  South  and  West  have  the  j)rothorax  red. 
Although  Boheman  described  all  the  thighs  as  toothed,  I  find  that  the  mid- 
dle and  haul  pairs  are  quite  unarmed.    The  tooth  of  the  front  pair  is  rather 

large,  but  obtuse. 

Group  II.     t'eiilrliii. 

The  only  characters  I  can  give  for  the  recognition  of  this  group,  as  dis- 
tinguished from  Bari'des,  are  :  the  elytra  conjointly  rounded  at  tip,  or 
nearly  so  ;  the  pygidium  thus  becomes  entirely  covered,  or  only  partly 
exposed,  and  is  nearly  horizontal,  or  at  most  somewhat  oblique,  and  never 
vertical.  The  last  ventral  is  consequently  regularly  rounded  at  tip,  never 
truncate  or  emarginate.  In  addition  to  these  characters  the  ventral  surface 
of  the  abdomen  is  more  convex,  frequently  ascends  obliquely,  as  in  Zygo- ' 
pini,  but  in  a  much  less  degree.  The  tibial  hooks  are  less  developed  than 
in  B(tris  and  its  allies,  and  in  many  species  are  scarcely  apparent.  The 
beak  and  antennae  are  generally  of  more  slender  form  than  in  Baris,  but 
these  characters  are  not  without  excejitions,  as  will  be  seen  below. 

A.  Body  without  erect  bristles. 

Tibiaj  stout,  with  longitudinal  grooves  (as  in  Baris)  2. 

"      slender,  not  grooved 3, 

2.  Pectoral  groove  shallow,  indefinite PACHYB ARIS. 

deep,  sharply  defined STETHOBARIS. 

3.  Side  margin  of  prothorax  as  usual 4. 

well  defined MICROCHOLUS. 

4.  Third  joint  of  tarsi  broad,  bilobed 5. 

narrow OALANDRINUS. 

5.  Claws  separate CENTRINUS. 

"      connate  at  base ZYGOBARIS. 

"      sinde BARILEPTON. 

B.  Body  with  stout  erect  bristles,  intermixed  with 

the  dens  '  covering  of  scales;  tarsi  narrow. 

Bristles  very  long EUCH^TES. 

"       short PLOOAMUS. 


302  CUKCULIONID^.  [LeConte. 

PACHYBARIS  n.  g. 

A  single  glabrous  species  of  very  stout  form  and  coarse  sculpture  repre- 
sents this  genus.  It  has  the  characters  of  Onychobaris  except  that  the 
elytra  are  conjointly  rounded  behind,  so  as  to  cover  the  pygidium,  and  the 
fifth  ventral,  though  very  transverse  is  broadly  rounded  behind.  The 
beak  is  slender,  longer  than  the  head  and  i)rothorax,  moderately  curved, 
and  striato-punctate,  a  character  n(jt  seen  in  any  other  of  our  species.  The 
antenntB  are  stout,  first  joint  of  funicle  elongate,  second  not  longer  than 
the  third,  remaining  joint  gradually  stouter,  merging  into  the  club,  which 
is  elongate-oval,  annulated  and  entirely  pubescent.  Prothorax  broader  than 
long,  strongly  but  gradually  narrowed  from  the  base,  rounded  on  the 
sides,  scarcely  constricted  in  front.  Elytra  very  little  wider  than  prothorax 
at  base,  humeral  callus  not  prominent,  gradually  narrowed  behind,  con- 
jointly rounded  at  tip.  Presternum  rather  broad  between  the  coxae 
longitudinally  slightly  concave  in  front,  with  two  short  impressions  con- 
nected at  their  anterior  end.  Legs  rather  stout,  thighs  unarmed,  tibiae 
rather  short,  scarcely  mucronate,  marked  with  two  fine  lines  and  inter- 
vening ridge  on  outer  surface;  third  joint  of  tarsi  broadly  dilated,  last  joint 
moderate,  claws  rather  large,  divergent. 

1.  P.  porosus,  n.  sp. 

Broadly  oval,  black,  moderately  shining.  Beak  slender,  punctured  in 
rows,  sides  striate;  head  punctured,  frontal  constriction  obsolete.  Pro- 
tliorax  strongly  punctured,  scutellar  lobe  large,  emarginate.  El5^tra  very 
deeply  striate,  strise  punctured,  interspaces  fiat,  each  with  a  row  of  large 
ujiproximate  punctures,  bearing  verj^  short  wliilish  hairs.  Beneath  coarsely 
punctured.     Length  3.7  mm. ;  .15  inch. 

Enterprise,  Florida,  May  10th:  Messrs.  Hubbard  and  Schwarz. 

STETHOBARIS  n.  g. 

The  single  species  of  this  genus  is  rather  broadly  oval,  though  less  so 
than  Pachyharis.  The  beak  is  as  long  as  the  head  and  prothorax,  rather 
stout,  curved  finelj',  punctulate;  head  distinctly  punctured,  convex,  frontal 
constriction  strong,  eyes  narrowly  separated  beneath;  antennjB  stout,  first 
joint  of  funicle  elongate,  second  not  longer  than  third,  the  following 
gradually  a  little  broader;  club  large,  elongate  oval,  annulated,  entirely 
pubescent.  Prothorax  broader  than  long,  convex,  rapidly  narrowed  in 
front  and  rounded  on  the  sides,  verj'  strongh'  and  tubularly  constricted 
near  the  tip.  Elytra  gradually  wider  than  the  prothorax  at  base,  then 
rounded  on  the  sides,  and  conjointly  rounded  at  tip,  covering  entirely  the 
pygidium.  Front  coxae  rather  widely  separated,  prosternum  with  a  deep 
smooth  shari^ly  defined  groove.  Legs  longer,  rather  stout,  thighs  not 
toothed,  tibife  faintly  grooved,  feebly  armed  at  tip;  tiiird  joint  of  tarsi 
broadly  dilated,  last  joint  small;  claws  very  small,  approximate  but  not 
connate. 


LeConte.j 


BARINI.  303 


1.  S.  ti'ibulatus.  Campylorhynclms  tub.  Say,  Cure.  20;  ed.  Lee.  i, 
285;  Baridius  ovatuK  Lee.,  Pr.  Ac.  Nat.  Se  ,  Phil.,  1868,  363. 

Middle,  Southern  and  Western  States.  The  prothorax  is  deeply  but  not 
very  densely  punctured,  and  the  scutellar  lobe  is  prominent,  and  subeniar- 
ginate;  the  dorsal  line  is  faint,  or  wanting.  The  elytra  are  deeply  striate,  the 
stria?  are  punctured,  and  the  interspaces  are  narrow,  each  with  a  row  of 
fine  but  distinct  punctures,  bearing  very  short  white  hairs;  beneath  coarsely 
punctured,  la.st  ventral  segment  densely  punctured.  Length  2  ..5-3  mm. ; 
.10-.  12  inch. 

There  may  be  some  doubt  about  the  reference  of  Say's  name  to  this 
species  in  consequence  of  the  expression,  "interstitial  lines  flattened,  and 
with  a  series  of  punctures  each  furnishing  a  recurved,  whitish  hair," 
which  would  seem  referal)le  rather  to  the  genus  Zaglypkis  (p.  236)  of  the 
Ithyporu>i  group  of  Cryptorhynchini.  In  other  respects  the  description  so 
well  accords  with  the  present  insect,  that  I  prefer  sui)pre8sing  the  name  pro- 
posed by  me  as  a  sjaionj'm,  until  some  other  insect  occurs  better  suited  to 
Say's  description.  In  ease  this  should  happen  the  name  ovatus  can  be 
restored. 

MICROCHOLUS  n.  g. 

Form  of  body  like  Baris,  but  stouter  and  more  convex,  M'itli  a  few  scat- 
tered white  scales.  Beak  as  long  as  the  prothorax,  curved,  cylindrical, 
rather  stouter  towards  the  base,  not  striate,  scarcely  perceptibly  trans- 
versely impi'essed  at  bass:  head  broad,  convex,  eyes  widely  separated, 
flat,  finelj''  granulated,  pointed  beneath;  antennal' grooves  commencing 
nearly  one-third  from  the  tip,  narrow,  running  obliquely  downwards, 
almost  confluent.  Antennae  with  seven  jointed  funicle,  first  joint  as  long 
as  the  three  following  united,  slender,  slightly  clavate  in  M.  striatus  and  M- 
puncticoUift,  shorter  and  stouter  in  31.  UnncolUs;  second  a  little  longer  than 
third:  3-7  gradually  slightly  broader;  club  elongate-oval,  pubescent,  annu- 
lated  towards  the  tip.  Prothorax  strongly  narrowed  in  front,  constricted 
at  tip,  sides  rounded,  flanks  concave,  so  as  to  cause  the  lateral  edge,  though 
not  acute,  to  appear  well  defined;  base  truncate;  post-ocular  lobes  wanting: 
prosternum  short,  slightly  concave,  rather  narrow  between  the  coxae;  mid- 
dle coxae  moderately  widely,  hind  coxae  more  widely  separated,  the  latter  not 
reaching  the  side  of  the  bodf .  Scutellum  very  small.  Elytra  truncate  at 
has?,  humeral  angles  rounded,  a  little  narrower  than  the  prothorax,  sides 
rounded  and  obliquely  narroAved  behind;  ])ygidium  entirely  covered  by 
the  conjointly  rounded  tips;  disc  very  convex,  striae  sometimes  indistinct. 
Mesosternum  short,  ventral  segments  slightly  unequal,  sutures  scarcely 
curved.  Thighs  rather  hmg  and  stout;  tibiai  rather  short,  sinuate,  feebly 
mucronate;  tarsi  with  third  joint  very  broadly  dilated  and  bilobed;  last 
joint  slender,  with  very  small  claws. 

Prothorax  punctured,  constriction  near  the  tip 1,  striatus. 

Elytra  with  Avell-marked  stria^ 2.  puncticollis. 

Prothorax  smooth,  constriction  distant  from  the  tip 3.  Isevicollis. 


304  CURCULIONm.E.  [LeConte. 

1.  M.  striatus,  n.  sp. 

Kobust,  convex,  black,  tliiuly  clothed  with  oval  white  scales,  more 
densely  placed  on  the  under  surface,  but  easily  removed  by  abrasion, 
and  of  which  but  few  remain  in  the  specimen.  Beak  nearly  smooth,  feebly 
impressed  transversely  at  base.  Prothorax  wider  than  long,  sides  oblique, 
rounded,  very  much  narrowed  in  front,  moderately  constricted  near  the 
tip,  sparsely  finely  punctured,  punctures  less  distinct  towards  the  sides, 
which  are  more  obtuse  than  in  the  other  two  species.  Elytra  not  narrower 
than  the  prothorax,  gradually  less  narrowed  beliind  than  in  the  other  two 
species  ;  stria3  well  marked,  rather  deep,  interspaces  broad,  flat,  each  with 
a  row  of  feeble  punctures.  Antennee  with  the  first  joint  of  funicle  slender, 
much  longer  than  the  second.  Beneath  rather  coarsely  punctured,  but 
not  very  deeply  so  on  the  flanks  of  the  prothorax.  Length  4.3  mm.;  .17 
inch. 

One  s])ecimen.  Lake  Harney,  Florida,  May  4th;  Messrs.  Hubbard  and 
Schwarz.  Probably  a  female,  in  which  case  the  male  would  have  the  pro- 
thorax wider  and  more  rounded  on  the  sides,  and  the  lateral  edge  more 
compressed. 

2.  M.  puncticollis,  n.  sp. 

Robust,  very  convex,  black,  uniformly,  but  thinly  clothed  with  silvery 
white  oval  scales,  more  densely  placed  on  the  under  surface.  Head  gla- 
brous behind  the  eyes,  punctured  in  front,  nearly  smooth  behind;  beak 
punctured,  scaly,  not  impressed  at  base;  front  scaly.  Prothorax  wider 
than  long,  strongly  rounded  on  the  sides,  hind  angles  rounded,  lateral  edge 
nearly  acutely  defined;  strongly  narrowed  in  front,  and  rather  strongly 
constricted  near  the  apex,  which  is  scarcelj^  one-half  as  wide  as  the  base; 
disc  strongly  punctured,  more  densely  towards  the  sides,  with  a  broad, 
smootli  dorsal  space.  Elytra  narrower  than  tl)e  prothorax,  broadly  but 
obliquely  narrowed  on  the  sides;  stritc  fine,  in  some  places  indistinct,  in- 
terspaces broad,  sparsely  irregularly  punctulate.  Antenna?  witli  the  first 
joint  of  funicle  twice  as  long  as  the  second,  which  is  longer  than  the  third. 
Beneath  rather  coarsely  punctured;  punctures  of  the  flanks  of  the  protho- 
rax equally  deep.     Length  3.7  mm.;  .15  inch. 

Baldwin,  Florida,  June  10;  many  specimens;  Messrs.  Hubbard  and 
Schw'arz. 

3.  M.  Isevicollis,  n.  sp. 

Robust  ovate,  very  convex,  almost  gibbous,  black,  shining  (sparsely 
squamose,  with  linear  white  scales,  which  have  been  mostly  removed  by 
abrasion).  Beak  sparsely  punctured,  feebl}'  transversely  impressed  at  base; 
head  convex,  sparsely  punctulate  in  front,  smooth  behind.  Prothorax 
twice  as  wide  as  long,  very  convex,  strongly  narrowed  in  front,  sides 
obliquely  narrowed,  very  strongly  constricted  about  one  fourth  from  the 
apex,  which  is  half  the  width  of  the  base;  the  latter  is  not  truncate,  but 
very  Iroadly  rounded;  surface  feebly  and  sparsely  punctulate,  lateral  edge 
nearly  acutely  defined.     Elytra  not  narrower  than  the  prothorax  at  base, 


LeC'ontc. 


bari:n^i.  305 


basal  angles  not  rounded,  sides  gradually  narro-^ed  and  slightly  rounded 
to  the  tip;  striae  fine,  feebly  punctured,  ending  near  the  base  in  deep  fovc?e; 
intersi)aces  broad,  flat,  smooth.  AntenniB  with  the  first  joint  of  fnnicle 
scarcely  longer  than  the  second,  but  somewhat  stouter  than  in  the  other  two 
species.     Length  2.3  mm. ;  .09  inch. 

St.  Louis,  Missouri;  one  specimen;  Mr.  M.  Schuster.  The  prothorax  is 
more  rapidly'  narrowed  in  Iront  and  more  strongly  tubulate  than  in  any 
other  Curculionide  known  to  me  in  our  fauna. 

CALANDRINUS,  n.  g. 

The  small  insect  which  constitutes  this  genus  bears  a  singular  resem- 
blance in  miniature  to  Sphenophorits,  but  is  clothed  with  scale-like  hairs, 
as  in  Centrinus. 

pjeak  slender,  cylindrical,  curved,  as  long  as  the  head  and  prothorax,  sep- 
arated from  the  head  by  a  transverse  constriction;  head  rather  large,  con- 
vex; eyes  distant,  flat,  pointed  beneath,  finely  granulated;  antenna!  grooves 
descending  obliquely  towards  the  lower  angle  of  the  eyes.  Antenme  with 
the  scape  not  attaining  the  eyes;  funicle  7-jointed,  first  joint  as  long  as  the 
second  and  third  united,  but  scarcely  stouter;  second  longer  than  third; 
3-7  giadually  wider,  merging  into  the  club,  which  is  elongate-oval,  pointed, 
pubescent  and  annulated.  Prothorax  two-thirds  as  long  as  the  elytra, 
longer  than  wide,  rounded  on  the  sides,  a  little  wider  near  the  middle,  nar- 
rowed before  the  middle,  constricted,  but  not  tubulate  towards  the  apex ; 
base  broadly  bisiuuate,  basal  angles  slightly  obtuse,  scutellar  angle  very 
broad;  postocular  lobes  wanting;  prosternum  long  in  front  of  the  coxie, 
which  are  rather  widely  separated;  scutellum  very  small,  punctiform. 
Elytra  elongate-oval,  a  little  wider  than  the  prothorax,  sides  rounded, 
forming  an  obtuse  angle  with  the  sides  of  the  prothorax;  stri*  deep,  not 
punctured  ;  tips  conjointly  rounded,  covering  entirely  the  pygidium. 
Middle  and  hind  coxae  widely  separated;  metasternum  short,  ventral  seg- 
ments unequal,  sutures  angulated  at  the  sides;  fifth  segment  as  long  as  the 
two  preceding  united.  Thighs  moderately  long;  tibi*  strongly  unguicu- 
late  at  tip;  tarsi  narrow,  third  joint  scarcely  wider  than  second,  uotbilobed, 
last  joint  as  long  as  the  others  united,  claws  simple,  divergent,  rather  large. 

It  is  singular  to  find  in  this  genus  a  recurrence  of  the  narrow  tarsi  already 
so  frequently  noticed  in  other  tribes,  without  any  important  strucLural 
modification,  but  with  an  outline  of  body  suggestive  of  a  very  diflerejit 
type. 

1.  C.  grandicollis,  n.  sp. 

Piceous,  clothed  with  hair-like  and  narrow  pale  scales  ;  beak,  antennae 
and  legs  brown.  Beak  not  punctured,  head  sparsely  punctured,  with  a 
larger  frontal  puncture.  Prothorax  coarsely  punctured,  with  an  elongate, 
smooth  dorsal  spot,  attaining  neither  base  nor  tip;  apical  margin  also 
smooth.  Elj'tra  with  deep  impunctured  striae,  interspaces  flat,  each  with 
a  row  of  deep  punctures;  third  interspace  wider,  with  the  punctures  con- 
fused.    Beneath  coarsely  punctured.     Length  3  mm.;  .12  inch. 

PKOC.  AMER.  PHIL08.  SOC  XV.  96.  2m 


306  CURCULIOXID.^. 


[LeConte. 


One  specimen,  collected  by  me  near  the  Rocky  Mountains.  The  scales 
are  partly  abraded;  on  the  elytra  they  remain  only  at  the  base  and  near  the 
extremity  of  the  fourth  to  the  seventh  interspaces. 

CENTRINUS  Sell. 

After  separating  a  certain  number  of  species,  wliicli  seem  to  indicate 
distinct  and  well  defined  genera,  there  remains  a  tolerably  numerous  mass, 
which,  although  not  entirely  homogeneous,  consists  of  species  having  in 
common  the  following  characters.  The  study  of  foreign  species  may  per- 
mit at  a  future  time  a  fiirther  subdivision,  but  the  transition  between  the 
extreme  forms  seems  so  gradual,  that  I  am  unwilling,  with  my  present 
knowledge,  to  indicate  the  'manner  in  which  this  may  be  effected. 

The  beak  is  long  and  slender,  cylindrical,  and  usually  curved,  but  some- 
times nearly  straight;  tlie  antenna!  grooves  commence  about  the  middle, 
descend  obliquely,  and  are  wider,  deeper  and  confluent  behind.  Mandi- 
bles small,  flattened,  pointed,  prominent,  and  without  teeth.  Antenna; 
rather  slender,  funicle  7-jointed,  joints  1-3  varj'ing  in  length,  4-7  equal 
in  lengtli,  not  passing  into  the  club,  which  is  oval,  somewhat  pointed,  pu- 
bescent and  annulated.  Prothorax  narrowed  and  more  or  less  constricted 
in  front,  without  postocular  lobes;  prosternum  long  in  front  of  the  coxa?, 
which  are  rather  widely  separated;  not  emarginate  in  front,  impressed  or 
not,  according  to  species.  Elytra  sometimes  elongate  with  parallel  sides, 
though  usually  narrowed  from  the  humeri,  so  as  to  give  a  rhoniboidal  form 
of  body;  posterior  callosity  feeble,  tips  usually  conjointly  rounded,  some- 
times separately  rounded,  exposing  in  the  latter  case  a  small  part  of  the 
pygidium,  which  is,  however,  horizontal,  and  not  vertical,  as  in  Ban's  and 
its  allies.  The  middle  and  hind  coxse  are  widely  separated;  metasternuni 
rather  short,  with  wide  episterna  in  the  rhoniboidal  species;  longer,  with 
narrower  episterna  in  the  elongate  species;  but  in  both  cases  distinctly 
wider  liefore  and  behind.  Ventral  surface  ascending  in  some  species, 
nciU'ly  horizontal  in  others;  first  and  second  joints  longer  than  thii'd  and 
fourth  ;  fifth  sometimes  longer,  sometimes  not  longer  than  the  fourth  ; 
first  suture  subsinuate,  the  others  strongly  angulated  at  the  sides. 
Thighs  unarmed,  tibioe  not  striate  on  the  outer  side,  very  feebly  mncronate 
at  tip;  tarsi  with  the  third  joint  very  broad,  bilobed,  last  joint  long,  with 
stout,  divergent  claAvs. 

In  the  males  of  several  species  the  prosternum  just  in  front  of  the  coxa?  is 
armed  with  a  slender  process,  which  varies  in  length  according  to  the  in- 
dividual, but  not  according  to  species. 

A.  Ehira  separately  strongly  rounded  at  tip;  pygidium  partly  exposed; 
posterior  edge  of  pi-othorax  deeply  emarginate  beneath  in  front  of 
niesosternum. 
Black,  densely  punctured  ;  above  pruinose, 
with  fine  scales  or   hairs,   beneath  scaly; 
scutellum  clothed  with  white  scales 1.   scutellutn-album. 


Lc'Jonte.l 


BAEINI. 


307 


B.  Elytra  conjointly  rouncled  at  tip,  or  nearly  so;  pygkluim  not  exposed, 

orrery  slightly  visible;  posterior  edge  of  prothorax  usually  emargi- 

nate  in  front  of  niesostcniuni;*  form  subrkomboidal,  side  pieces  of 

nietathorAx  wide. 
Emargiaation  of  hind  margin  of  prothorax  «niall  2. 

Eninrgination  of  hind  margin  of  prothorax  deep; 
body  densely   clothed    with    coaree  capillary 

scales;  elytra  souietimes  with  denuded  spots. . .  2.  penicellus. 

2.  Prothorax  tubularly  constricted  in  front 3. 

"  moderately         '■'  -^     "      5. 

Be<ak  strongly   punctured   and  striate;  pn)thorax 

coarsely  punctured 4. 

3.  Beak  nearly  smooth;  prothorax  more  finely  punc- 

tured         3.  laevirostris. 

Beak  strongly  punctured;    prothorax   less   finely 

punc'ured 4.  punctirostris. 

4.  Sides  of  prothorax  strongly  rounded;  prosternum 

deeply  impressetl  in  front  of  the  coxae,  emargi- 

nate  behind 5.  striatirostris. 

Sides  of  prothorax  oblique,   feebly  rounded;  pro- 
sternum  ijupressed  near  tJie  apex,  not  emargi- 

nate  behind 6.  modestlis. 

•ij.  Sides  of  prothorax  much  rounded 6. 

"  "        oblique,  feebly  rounded 7. 

C).   Pubescence  gray  squamose 7.  perscilltis. 

'•'            '^    capillary,  (prosternum  not  emar- 
ginate  behind), 9.  capillatus. 

7.  Prothorax  gradually  narrowed  in  front 8. 

■"       more  suddenly  narrowed  near  the  tip..  8.  neglectus. 

8,  Second  joint  of  funicle  equal  to  third;  scales  uni- 

form    P- 

Second  joint  of  funicle  longer  than  third;  scales 

yellow  and  black,  forming  stripes 12.  lineelltis. 

0,  Prosternum  Avitli  three  impressions  in  front 10.  picumnus. 

Prosternum  with  one  small  impression  near  the 

apical  margin 11.  perscitus. 

C.  Elytra  conjointly  rounded  at  tip,  or  nearly  so;  pygidium  not  expos<d 

or  very  slightly  visible;  posterior  edge  of  prosternum  not  emargi- 

nate  in  front  of  mesosternum;  form  elongate. 
Prosternum  ti-ansversely  impressed  as  usual  by  the 

subapical  constriction 2. 

Prosternum    with   two  slight   ridges,    indicating  a 

broad  but  feeble  pectoral  groove P . 

Prosternum  foveate  near  the  apical  margin 9. 

2,  Scales  moderately  large,  quite  evident 3. 

"      small,  hair-like,  inconsiicuous 5. 

*The  exceptions  are  C,  modestus,  capUlatus,  and  perhaps  Unecllus. 


308  CURCULIOXID.^. 


[LeConte. 


3.  Front  coxaj  not  widel}'  separated 4. 

"          "      widely  separated,  form  more  robust   ..  13-  griseus. 

4.  Interspaces  of  elytra  with  double  or  confused  rows 

of  scales 14.  decipiens. 

Interspaces  o/  elytra  with  single  rows  of  scales 15.  lineicollis. 

5.  Interspaces  of  elytra  with  single  rows  of  punctures  6. 

"               "                 "      confused     "             "  7. 

6.  Rows  of  punctures  very  strong 16.  punctiger. 

"                 "          fine 17.  nasutus. 

7.  Prothorax    suddenly    constricted    in     front,    beak 

curved 18.  calvus. 

Prothorax   less   constricted   in    front,    bL'ak   nearly 

straight  19.  rectirostris. 

8.  Prothorax  very  densely  punctured 20.  falsus. 

"         less         "             "          21.  longulus. 

9.  Prosternal  impression  single 10. 

"          double 22.  concinnus. 

10.  Elytral  striie  deeii;  interspaces  strongly  punctured  23.  confusus. 

"      fine;             "            feebl}^               "  11. 

11.  Prosternal  impression  quadrate 24.  prolixus. 

"                 "          small,  round 25.  confinis. 

1.  C  sctttellum-albuni  Say,  Cure  21;  ed.  Lee.  i,  287;  Baridius  sent. 
Germ.  Sch.  Cure,  ili,  730. 

An  abundant  species  over  the  whole  of  the  Atlantic  district.  Varies 
considerably  in  size  (3-1.7  mm.;  .12-.18  inch),  the  smallest  specimens 
occurring  in  all  parts  of  the  country;  also  in  form,  some  of  the  smaller 
specimens  from  Texas  being  less  robust,  with  the  sides  of  the  prothorax 
less  rounded;  also  in  vestiture,  which  is  sometimes  denser  and  yellowish,  and 
squamose  upon  the  elytra,  in  specimens  from  Texas.  The  white  scales  of 
the  scu'.ellum  are  not  imfrequently  removed  by  abrasion.  The  antennfe 
are  stouter  than  in  the  following  species,  and  the  second  joint  of  the  funicle 
of  the  antenna?  is  distinctly  longer  than  the  third;  the  prosternum  is  deeply 
transvcrsi-'ly  impressed,  and  is  flattened  behind  the  impression,  but  has  no 
trace  of  spines  in  either  sex.  The  metasternal  episterna  are  wide;  the  fifth 
ventral  is  scarcely  longer  than  the  fourth.  The  anal  segment  is  exposed  in 
the  (^,  and  is  slightly  declivous.  Of  all  the  species  in  our  fauna,  this 
makes  the  nearest  approach  to  Barig. 

2.  C.  penicellus.  Curculio  penicellus  Herbst,  Kiifer,  vii,  29,  Tab. 
99,  f.  'J;  Bitridius  pen.  Say,  Cure.  17;  ed.  Lee.  i,  281;  Centrwiu'^  7iolosericeus 
Gyll.,  Sell.  Cure,  iii,  7G0;  Bnridius  pubescenn  Uhler,  Proc.  Acad.  Nat.  Sc. 
Phila.  vii,  417. 

New  York  to  Florida  and  Louisiana.  The  vestiture  is  of  narrow-pointed 
brassy  yellow  scales,  or  coarse  flattened  hairs,  on  the  prothorax  they  point 
transversely  towards  the  middle,  wliich  is  slightly  carinate;  on  the  elytra 
they  form  three  nearly  regular  rows,  upon  each  of  the  densely  punctured 


LeConte.]  BAKINI.  309 

interspaces.  In  some  specimens  tlio  elytra  are  uniformly  clothed,  williout 
any  denuded  spots.  The  second  joint  of  the  funicle  is  as  long  as  the  first, 
but  more  slender.  The  elytra  are  conjointly  nmnded  at  tip,  and  the 
pygidium  is  not  visible.  The  prosternum  is  transversely  impressed  and 
flattened,  as  in  the  preceding  species,  not  armed  in  the  cJ^;  the  emargina- 
tion  in  front  of  the  mesosternura  is  wide  and  deep,  limited  by  sharp 
angles.  The  metalhoracic  cpisterna  are  wide,  and  the  fifth  veniral  luit 
little  longer  than  the  fourth. 

O.  pistor  Gyll.,  Sch.  Cure,  iii,  7G0;  Balaninua  putor  Germ.,  Ins.  Nov. 
295,  and 

0.(?)  dilectus  Harris,  Trans.  Hartf.  Nat.  Hist.  Soc.  i.  80, 
Are  unknown  to  me.     I  think  it  possible  that  the  latter  may  bo  a  large 
variety  of  ■penicelhi.s;  the  former  is  perhaps  the  9  of  the  next. 

3.  O.  Isevirostris,  n.  sp. 

Black,  densely  clothed  with  small  gray  scales,  which  are  narrower  but  not 
hair-like  upon  the  upper  surface.  Beak  as  long  as  the  head  and  proth  )rax, 
slender,  curved,  opaque,  smooth,  slightly  punctured  and  pubescent  near  the 
base;  head  feehly  punctulate.  Prothorax  not  wider  than  long,  rapidly 
narrowed  froni  the  base,  strongly  rounded  on  the  sides,  very  strongly 
tubularly  constricted  near  the  tip,  bisinuate  at  base;  scutellar  lobe  slightly 
emarginate;  surface  densely  rather  finely  punctured,  scales  not  directed 
transversely;  dorsal  line  smooth,  sliglitly  elevated.  Elytra  conjointly 
rounded  at  tip,  pygidium  slightly  visible  (only  in  (^t)\  stritu  deep  but  not 
broad,  interspaces  flat,  densely  punctured ;  suture  and  alternate  spaces 
clothed  with  paler  scales.  Anteiin*  with  the  second  joint  of  funicle  two- 
thirds  as  long  as  the  first.  Side  pieces  of  metas'ernum  wide;  fifth  ventral 
nearl}-  as  long  as  third  and  fourth  united.  Hind  margin  of  prot  Orax 
beneath  narrowly  emarginate.     Length  6.2  mm.;  .io  inch. 

(^.  Prosternum  with  a  very  deep  excavation  in  front  of  the  coxse,  and 
armed  each  side  of  the  cavity  with  a  long  curved  horn:    9  wanting. 

Missouri,  one  specimen.  This  is  the  largest  species  in  our  fauna,  and 
corresponds  in  size  with  C.  pUtor  and  dilectus;  I  do  not  feel  disposed  how- 
ever, to  refer  it  to  either  of  them. 

4.  C.  pvinctirostris,  n.  sp. 

This  species  corresponds  in  all  respects  with  C.  hevirostris,  except  lliat 
the  scales  are  of  a  uniform  pale  gray^  the  beak  is  stouter,  especially  at  tiie 
base,  coarsely  punctured  even  at  the  tip,  with  a  small  smooth  spac:'  at  tlie 
base,  and  the  punctures  of  the  prothora.x;  though  dense,  are  soinewliat 
larger.     Length  6.2  mm  ;  .25  inch. 

Colorado,  one  J^.  The  horns  of  ihe  prosternum  are  shorter,  and  more 
regularly  curved. 

5.  O.  striatirostris,  n.  sp. 

More  robust  than  the  two  preceding  species.  Beak  not  very  slender, 
more  curved  near  the  base  ;  shining,  coarsely  punctured,  longitudinally 


810  CURCULIONIDJE.  [I.eConfe. 

nigosc^  on  ilie  sides,  stDngiy  cons  rictod  ;»t  the  biise.  Protliorax  wkler  than 
long,  niucli  roiinde'd  on  the  sides,  strongly  tubulai'ly  cons' ricted  at  tip;  very 
coarsely  and  somewhat  conQuently  punctured;  scales  sparse,  white,  narrow, 
direcied  transversely  ;  dorsal  line  narrow;  scutellar  lobe  broad,  slightly 
emarginate.  Elytra  not  wider  than  the  protliorax,  gradually  narrowed 
behind  ih:'  humeri,  thinly  clothed  with  white  scales  broader  than  those  of 
the  prothorax,  tips  sejitirately  but  narrowl}^  rounded;  striae  deep,  broad  and 
l)unctured;  interspaces  narrow,  with  large  punctures  nearly  arranged  in 
single  rows.  Funicle  of  anennm  with  the  second  joint  half  as  long 
a-A  the  first.  Beneath  coarsely  punctured,  clothed  not  verj^  densely  with 
oval  white  scales.  Hind  nvirgin  of  pi'othorax  emarginate  beneath;  sidi' 
pieces  of  metasternum  wide;  fifth  reutml  shorter  than  third  and  fourth 
united.     Length  4.6  mm.;  .18  inch. 

Texas,  Belfrage,  one  (^.  The  prosternum  is  deeply  excavated  as  in  the 
two  preceding  species,  but  the  horns  are  much  shorter,  and  scarcely  curved. 
This,  however,  may  be  an  individual  character. 

6.  C.  rriDdestus  Boh.,  Sch.  Cure,  iii,  7T2-. 

Middle  and  Southern  States.  Similar  in  fonn  to  the  preceding  species, 
black,  sprinkled  wiiii  small  oval  white  scales.  Beak  as  long  as  the  head 
and  prothorax,  stout,  regularly  curved,  sparsely  punctured.  Prothorax 
wider  than  long,  feebly  rounded  on  the  sides,  which  are  oblique,  strongly 
constricted  at  tip;  densely,  somewhat  confluently  punctured,  with  a  nar- 
row smooth  dorsil  line.  Elytra  conjoin  ly  rounded  at  tip;  strife  deep,  in- 
tei-spaces  ccxirsely  punctured.  Prosternum  with  a  -frell  defined  deep 
in:ipression,  rounded  in  front,  extending  nearly  to  the  anterior  margin; 
coxce  niotlerately  widely  separated,  hind  margin  nol  emarginae;  side 
pieces  of  metathoras  wide;  fifth  ventral  segment  a  little  longer  than  fourth. 
Funicle  of  antennse  with  first  joint  elong-a'.e,  second  a  little  longer  than 
third.     Length  .4  mm.;  .15  inch. 

(^  with  a  small  cusp  each  side,  immediately  before  the  front  coxse; 
abdomen  flattened  near  the  base;  aiial  segment  slightly  visible  on  the  under 
surface. 

7.  O.  perecillus  Gyll.,  Sch.  Cure,  iii,  763. 

Kansas,  one  male.  The  scales  are  dirty  gray,  not  linear  but  oval,  and 
d  nsely  placed.  The  prothorax  is  wider  than  long,  rapidly  narrowed  from 
the  base,  with  the  sides  not  very  much  rounded,  and  the  tip  onlj^  feebly 
onstricted.  The  elytra  are  conjointly  rounded  at  tip,  and  the  pygidium 
i^  not  exposed;  the  striae  are  de_'p  and  punctured.  The  second  joint  of  the 
funicle  is  as  long  as  the  fii-st,  the  side  pieces  of  the  metasternum  are  wide, 
the  fifth  ventral  is  but  little  longer  than  the  fourth,  and  the  hind  margin  of 
the  prothorax  beneath  is  narrowly  emarginate  in  front  of  the  mesosternum. 
Length  3.5  mm.;  .14  inch. 

The  prosternum  is  deeply  excavated,  and  the  horns  are  short  and  onical. 

8.  C.  neg-lectus,  n.  sp. 

Yery  similar  to  0.  per&cilht^,  but  rather  narrower,  clothed  with  ochreous 


LeC'onte. 


BAPJNI.  311 


narrow  scales.  Protliorax  scarcely"  wider  than  long,  sides  obliquely 
rounded,  feebly  constricted  at  tip;  disc  densely  punctured;  scales  hair-like, 
directed  transversely,  dorsal  line  obsolete  Elytra  scarcely  wider  than  the 
prothorax,  gradually  narrowed  from  the  humeri,  tips  conjointly  rounded; 
strijie  deep  and  wide,  interspaces  flat,  densely  punctured.  Beneath  covered 
with  oval  scales;  antennae  and  legs  brown;  presternum  as  wide  between 
the  coxae  as  in  C.  perscillwi,  emarginate  in  front  of  the  mesosternum;  side 
pieces  of  metasteraum  wide;  fifth  ventral  scarcely  longer  than  the  fourJi. 
Beak  long,  slender,  curved,  shining  and  sparsely  pubescent,  distinctly 
punctured;  second  joint  of  funicle  nearly  as  long  as  the  first.  Length  2.5 
mm.;  .10  inch. 

Louisiana  and  Kansas,  four  specimens.  The  prosternum  is  broadly  but 
less  deeply  impressed;  in  the  (^  the  horns  are  very  short ;  in  the  9  tlit-' 
prosteruum  is  flattened,  but  not  concave. 

9.  C.  capillatus,  n.  sp. 

Similar  in  size  and  form  to  0.  perscillus,  but  only  thinly  clothed  with 
hair-like  white  scales  on  the  upper  surface,  intermixed  with  oval  scales  on 
the  under  surface.  Beak  as  long  as  the  head  and  prothorax,  slender, 
abruptly  curved  near  the  base,  then  nearly  straight,  shining,  smooth, 
sparsely  punctured  near  the  base,  frontal  constriction  ver^'^  feeble;  head  con- 
vex, sparsely  punctured.  Prothorax  wider  than  long,  sides  oblique,  very 
slightly  rounded,  tip  feebly  constric:ed  ;  disc  densely  punctured,  scales 
directed  transversely;  base  bisinuate,  scutellar  lobe  rather  large,  truncate. 
Elytra  somewhat  wider  than  the  prothorax,  narrowed  behind  froui  the 
humeri,  separately  (though  very  slightly  so)  rounded  at  the  tips  ;  pygidium 
not  exposed;  striae  deep  and  broad,  interspaces  flat,  densely  puncLured, 
•ach  with  two  rather  regular  rows  of  hair-like  scales.  Proslernum  not 
rery  wide  between  the  coxae,  hind  margin  truncate  ia  front  of  the  meso- 
sternum, not  at  all  emarginate  ;  side  pieces  of  metathorax  wide  ;  fifth  ven- 
tral longer  than  the  fourth;  antennae  with  the  first  joint  of  the  funicle 
long  and  slender,  second  two-thirds  as  long,  equal  to  the  third  and  fourth 
united.     Length  3  mm.;  .12  inch. 

(^.  Prosternum  broadly  and  feebly  concave  ;  horns  reduced  to  a  small 
slender  cusp;  ventral  surface  flattened,  fifth  segment  as  long  as  the  third 
and  fourth  united. 

9-  Prosternum  slightly  convex,  without  horns;  ventral  surface  convex, 
fifth  segment  a  little  longer  than  the  fourth. 

Texas,  Belfrage,  three  speciniens. 

10.  C.  picumnus.  Curcidio  j)ic.  Herbst,  Kafer,  vii,  30;  Tab.  99,  f.  9; 
Baridius  pic.  Say,  Cure.  17;  ed.  Lee.  i,  281;  Centritius  olivaceus  Gyll., 
Sch.  Cure,  iii,  763;  Centrinus  siUor  Harris,  Trans.  Hartford  Nat.  Hist. 
Soc.  i,  81. 

Abundant  throughout  the  Atlantic  region.  Rather  broader,  and  more 
regularly  oval,  densely  clothed  with  narrow,  ochreous  scales,  which  are 
broader  and  paler  on  the  under  surface.     Beak  long,  slender,  regularly  and 


312  CURCULIONID^. 


[LeConte. 


strongly  curved,  frontal  constriction  deep.  Protliorax  wider  than  long, 
narrowed  from  the  base,  sides  oblique,  scarcely  rounded,  feebly  constricted 
near  the  tip;  surface  densely  punctured,  scales  directed  transversely;  scu- 
tellar  lobe  long.  Elytra  scarcely  wider  than  the  protliorax,  gradually  nar- 
rowed from  the  humeri,  tips  separately  very  slightly  rounded,  pj-gidium 
exposed  at  tip;  striae  deep,  punctured,  interspaces  flat,  densely  punctured, 
scales  in  about  three  nearly  regular  series  on  each  interspace.  Beneath 
densely  punctured;  prosternum  transversely  impressed,  slightly  concave 
near  the  tip  and  also  each  side;  moderately  wide  between  the  coxae;  sharply 
emarginate  in  front  of  the  mesosternum;  metathoraic  side  pieces  wide;  fifth 
ventral  segment  scarcely  longer  than  fourth.  Funicle  of  antennae  with  the 
first  joint  as  long  as  the  three  following  united;  second  not  longer  than 
third.     Length  2.5  mm. ;  .10  inch. 

(^.  Prosternum  with  a  long,  nearly  straight  horn  in  front  of  each  coxa; 
varies  with  the  horns  verj-  short.     Beak  punctured  and  striate. 

9-  Prosternum  without  horns.  Beak  sometimes  punctured  and  striate, 
as  in  the  (f;  sometimes  feebly  punctured  and  not  striale. 

11.  C.  perscitus  Scli.  Cure,  iii,  764;  CurcuUo  pers.  Herbst,  Kafer,  vii, 
28;  Tab.  99,  f.  3. 

Georgia  and  Texas;  two  specimens.  Similar  in  size  and  form  to  the  pre- 
ceding, but  tiie  scales  are  more  hair-like,  and  are  more  densely  i)laced  on 
the  sides  of  the  prothorax.  The  stri;e  of  the  elytra  are  finer,  and  the  inter- 
spaces consequently  wider.  The  front  coxae  are  moderately  distant,  and 
the  prosternum  is  concave  at  the  middle,  but  not  impressed  at  the  sides; 
th'j  hind  margin  is  very  sliglitly  rounded,  not  emarginate;  the  metathoracic 
side  pieces  are  wide,  and  the  fifth  ventral  is  scarcely  longer  than  the  fourth. 
Funicle  of  antennae  rather  stout,  first  join*  as  long  as  the  three  following; 
s  'cond  scarcely  longer  than  the  third.  Prosternum  without  horns  in  the  (^. 
Length  2.5  mm. ;  .10  inch. 

12.  C.  lineellus  Lee.  Proc.  Ac.  Nat.  Sc.  Phil.  1859,  79. 

Tejon,  California  ;  one  female  ;  Mr.  Xantus.  Enterely  similar  in  form 
and  size  to  the  two  preceding,  but  the  scales  are  oval,  and  of  two  colors, 
sulphur-yellow  and  black;  the  first  color,  though  paler,  prevailing  on  the 
under  surface;  and  forming  also  three  broad  vi  tte  on  the  prothorax.  Scu- 
tellum  black.  Elytra  with  the  whole  of  the  second  interspace;  the  third, 
except  f)r  the  basal  fourth;  the  fourth  for  the  basal  fifth;  the  sixth  for  the 
anterior  half;  the  seventh  and  eighth  for  the  posterior  two-thirds  covered 
with  yellow  scales,  arranged  in  two  or  three  rows  on  each  interspace;  striae 
rather  deep,  punctured  Prosternum  convex,  transversely  impressed,  as 
usu'il,  but  notconcive;  front  cox B  widely  separated.  Metathoracic  side- 
piec 's  wide;  abdomen  convex;  fifth  ventral  not  longer  than  fourtli.  Funicle 
of  antennae  rather  slender;  second  joint  a  li.tle  longer  than  the  third, 
L  "ngth  2.5  mm.;  .10  inch. 

13.  O.  ^riseus,  n.  sp. 

Loss  elongate   than   the  following  species,  proportioned   somewhat   as 


LeCoiite.] 


BARINI.  313 


C.  capillatus,  but  with  the  prothorax  more  rounded  on  the  sides,  and 
more  constricted  in  front.  Beak  shorter  than  the  protliorax,  not  very 
slender,  regularly  curved,  punctured  and  striate;  transverse  frontal  im- 
pression distinct;  head  convex,  opaque,  finely punctulate.  Prothorax  wider 
than  long,  sides  parallel  behind,  much  rounded  in  front,  strongly  constricted 
near  the  tip;  disc  coarsely  and  denselj^  punctured,  clothed  with  narrow, 
pale  scales,  directed  transversely.  Elytra  feebly  nari'owed  from  the  humeri, 
separatel}^  rounded  at  the  tip;  pygidium  slightly  exposed;  strijie  deep,  inter- 
spaces rather  narrow,  punctured;  each  clothed  with  an  irregular  double 
series  of  narrow,  white  scales.  Prosternum  with  the  usual  transverse  im- 
pression, not  foveate,  hind  margin  not  emarginate;  front  coxje  widely  sep- 
ara'ed;  metathoracic  side  pieces  wide;  fifth  ventral  segment  nearly  as  Ions 
as  the  third  and  fourth  united;  antennfe  with  rather  stout  funicle,  second 
joint  scarcel}'  longer  than  the  third.     Length  3.7  mm.;  .1.5  incli. 

Texas,  Belfrage;  one  specimen.  This  is  a  deceptive  and  diliicult  species 
to  identify,  and  would  be  equallj'  well  placed  near  C.  modestus  and  cupil- 
Itiius. 

14.  C.  decipiens,  n.  sp. 

More  elongate  than  the  preceding,  but  otherwise  closely  resembling  it. 
The  beak  is  similarly  curved  and  sculptured,  but  is  longer.  The  prothorax 
is  not  constricted  in  front,  and  the  scales  are  somewhat  less  narrow,  though 
also  directed  transversely;  the  sides  are  much  less  rounded.  The  elj^tra 
are  deeply  striate,  clothed  with  narrow,  pale  scales,  arranged  in  rat  her  con- 
fused single  series  on  tlie  inner  interspaces,  but  with  regular  rows  on  the 
outer  ones.  The  body  beneath  is  densely  clothed  with  oval  pale  scales; 
the  prosternum  is  transversely  impressed  as  usual,  but  also  slightly  foveate 
and  flattened,  though  the  fovea  is  concealed  by  the  scales.  The  front  coxae 
are  not  widely  separated,  the  metathoracic  side  pieces  are  wide,  and  tlie 
fifth  ventral  segment  is  nearly  as  long  as  the  third  and  fourth  united.  Fun- 
icle of  antennae  rather  slender;  second  joint  a  little  longer  than  third. 
Length  ?>  mm. ;  .12  inch. 

Florida  and  Texas;  two  specimens. 

l").  O.  linsicollis  Boh.,  Sch.  Cure,  viii,  1st,  331. 

Illinois,  Texas,  South  Carolina,  also  occurs  in  Mexico.  An  elongate 
species,  thinly  clothed  with  small,  narrow,  gray  scales,  which  are  almost 
hair-like  on  the  upper  suface;  and  rather  dense  at  the  middle  and  sides  of 
the  prothorax;  on  the  elytra  they  are  arranged  in  single  series  on  each  in- 
terspace. 

The  beak  is  as  long  as  the  prothorax,  curved,  sparsel}^  punctured,  and 
striate  at  the  sides.  Prothoi-ax  densely  punctured,  longer  than  wide,  feebly 
constricted  near  the  tip.  Elytra  conjointly  rounded  at  tip,  stria3  deep,  in- 
terspaces rugosely  punctured.  Prosternum  transversely  impressed  in  front, 
not  emarginate  behind;  front  coxae  only  narrowly  separated;  metathoracic 
side-])ieces  rather  narrow  ;  fifth  ventral  nearly  as  long  as  third  and  fourth 
united.  Funicle  of  antennse  rather  stout;  first  joint  as  long  as  the  two 
following;  second  a  little  longer  tlian  the  third.   Length  3.5  mm.;  .10  inch. 

FROG.  AMER.  PHILOS.  SOC.  XV.  96.  3n 


314  CURCULIONID^. 


[Le'.'onte. 


•16.   C.  punctiger,  n.  sp. 

Elonga'e  oval,  narrowed  before  and  behind,  dull  black,  nearly  glabrous 
above.  Beak  brown,  as  long  as  the  prothorax,  slender,  curved,  puncured 
towards  th?  base,  frontal  impression  distinct.  Prothorax  as  wide  as  long, 
much  narrowed  in  front,  broadly  but  not  abruptly  constric'.ed,  sides 
rounded;  disc  coarsely  and  d.^eply  punctured,  dorsal  line  narrow.  Elytra 
with  deep  punctured  striae,  interspaces  each  with  a  row  of  deep  punctures; 
tips  nearly  conjointly  rounded.  Beneath  coarsely  and  densely  punctured, 
scarcel}^  pubescent;  prosternum  convex,  very  deeply  constricted  in  front, 
not  emarginate  behind;  front  coxae  widely  separated;  metathoracic  side 
pieces  rather  narrow;  fifih  ventral  nearly  as  long  as  third  and  fourth  united. 
Legs  and  antennne  brown,  funicle  rather  slender;  second  joint  scarcely 
longer  than  third;  club  rather  shining  for  half  its  length,  annulated  only 
towards  the  tip.     Length  3  mm-;  .12  inch 

Texas,  Belfrage;  one  specimen.  By  the  structure  of  the  antennnl  club 
this  species  approaches  Baris,  but  the  beak  and  antennae  are  slender,  and 
the  ventral  segments  are  those  of  the  present  genus- 

17.  C.    nasutus.     Baridius  nasutus  Lee  ,  Pr.  Acad.  Nat.  Sc.  18o9,  79. 
Tejon,   California;  two  specimens.      Beak  slender,   curved,  punctured 

and  striate;  prothorax  longer  than  wide,  broadly  rounded  on  the  sides, 
narrowed  in  front  of  the  middle,  feebly  constricted  near  the  tip;  rather 
closely  punctured,  shining,  sparsely  pubescent.  Elytra  with  deep  punctured 
striae,  interspaces  with  single  rows  of  small  punctures  and  very  fine  hairs; 
tips  conjointlj^  rounded.  Beneath  not  coarsely  but  rather  densely  punctured. 
Prosternum  transversely  impressed  as  usual,  not  emarginate  behind; 
front  coxa3  widely  separated;  metathoracic  side  pieces  rather  narrow;  ven- 
tral segments  less  punctured,  with  a  small  cusp  at  the  middle  of  the  hind 
margin  of  the  first,  where  the  suture  is  effaced;  fifth  segment  as  long  as 
the  third  and  fourth,  more  densely  punctured.  Antennae  with  the  second 
joint  of  funicle  a  little  longer  than  third.     Length  4  mm.;  .16  inch. 

I  refer  to  this  species  a  much  smaller  specimen  (2.5  mm.;  .10  inch)  from 
Texas. 

18.  C  calvus,  n.  sp. 

Elongate  oblong,  dull  black,  thinly  clothed  with  fine,  short  hairs,  which, 
on  the  under  surface,  become  scale-like.  Beak  as  long  as  the  prothorax, 
not  slender,  slightly  curved  about  the  middle,  nearly  straight  at  base  and 
tip,  strongly  striate  and  punctured;  front  not  transversely  impressed;  head 
feebly  punctulate.  Prothorax  scarcely  wider  than  long,  sides  nearly 
straight  and  parallel  for  more  than  half  the  length,  then  suddenly  rounded 
and  tubularly  constricted;  surface  densely,  not  coarsely  punctured,  with 
indistinct  dorsal  line;  base  nearly  straight.  Elytra  but  little  wider  than 
the  prothorax,  sides  parallel  behind  the  humeri,  then  broadly  rounded; 
tips  separately  rounded,  exposing  a  small  part  of  the  pygidium,  which  is 
slightl}'  declivous,  but  by  no  means  vertical;  stri«  deep,  scarcely  punctured, 
interspaces  wide,   confusedly  and  rugosely  punctured.      Beneath,  rather 


LcC)iit(?. 


BARTISri. 


densely,  n  )t  coarscl}^  punctured;  prosteniuiu  rather  flat,  less  deeply  ini- 
l^ressed  in  front  than  usual,  very  slightly  emarginate  behind;  hind  margin 
not  emarginate;  front  coxse  moderately  widely  separate;  nietathoracic 
side  pieces  rather  narrow;  fifth  ventral  segment  as  long  as  the  two  preced- 
ing; second  joint  of  funicle  longer  than  the  third.  Length  4.5-5.3  nun.; 
.18-21  inch. 

(^.  First  ventral  segment  flattened  and  slightly  concave  at  the  middle; 
prosternum  without  spines. 

9-  Ventral  surface  convex,  not  impressed;  form  a  little  stouter;  bc\ak 
more  slender,  less  deeply  sculptured. 

Georgia  and  Florida;  two  specimens.  The  description  is  drawn  from 
the  (J^,  which  is  the  larger  specimen. 

19.  C.  rectirostris,  n.  si>. 

More  elongate,  black,  nearly  glabrous,  shining.  Beak  longer  than  tlie 
head  and  prothorax,  nearly  straight,  slender,  sparsely  punc  ured,  with  a 
small  basal  indentation  ;  hvad  convex,  feebly  punctulate.  Prothorax 
scarcely  longer  than  wide,  slightly  narrowed  from  the  base  forwards,  then 
more  narrowed  and  rounded,  broadly  constricted  near  the  tip  ;  surface 
sti-ongly  punctured,  dorsal  line  narrow,  distinct.  Elytra  a  little  wider  than 
the  prothorax,  sides  parallel  behind  the  humeri,  then  rounded;  tips  sepa- 
rately rounded,  exposing  a  small  par:^  of  the  pygidium;  stride  deep,  narrow, 
interspaces  wide,  finely  rugosely  punctured.  Beneath  slightly  pubescent, 
not  coarsely  punctured;  more  sparsely  on  the  first  and  second  \entral  seg- 
ments. Prosternum  transversely  impressed  in  front,  not  emarginate  be- 
hind; front  coxie  moderately  widely  distant;  metathoracic  side-pieces  not 
very  narrow;  fifth  ventral  segment  as  long  as  the  two  preceding  united. 
Funicle  of  antennai  slender,  second  joint  nearly  as  long  as  the  first. 
Length  4.8  mm.;  .19  inch. 

South  Carolina  and  Illinois;  three  specimens.  I  have  adop'ed  the  name 
given  to  it  by  Dr.  Zimmermanii.  The  beak  of  the  (^  is  mare  strongly 
punctured  and  striate,  and  a  little  shorter. 

20.  C.  falsus,  n.  sp. 

Elongate  oval,  dull  black,  clothed  not  very  densely  with  narrow  yellow- 
ish scales,  which  are  broader  and  paler  on  the  under  surface.  Beak  as 
long  as  the  head  and  prothorax,  more  carved  at  the  base,  not  very  slender, 
strongly  punctured  (f*);  sparsely  punctured  (  9  );  head  punctured,  front 
with  a  small  fovea,  not  transversely  impressed.  Prothorax  wider  than 
long,  slightly  narrowed  from  the  base,  rounded  and  feebly  constricted 
towards  the  tip;  densely  and  strongly  punctured;  dorsal  line  narrow,  dis- 
tinctljr  elevated;  hairs  transversely  arranged,  base  nearly  straight.  Elytra 
slightly  separately  rounded  at  tip,  apex  of  pygidium  exposed;  sti'ine  deep, 
interspaces  wide,  densely  and  confusedly  punctured,  hairs  not  arranged  in 
rows.  Beneatli  densely  punctured,  prosternum  transversely  impressed  as 
usual,  and  longitudinally  concave  ;  apical  part  foveate,  and  with  a  small 
ridge  each  side  of  the  fovea;  hind  margin  not  emarginate;  front  coxae  mod- 


316  CURCULIONID^. 


[LeConto. 


crately  distant,  metatlioracic  side  pieces  rather  wide,  fifth  ventral  segment 
hardly  longer  than  the  fourth.  Funicle  of  autennse  slender,  first  joint  as  long 
as  the  three  following  ;  second  a  little  longer  than  the  third ;  club  less 
elongate,  stouter,  pubescent,  less  distinctly  aunulated.  Length  4  mm. ; 
.16  inch. 
Middle  and  Southern  States;  four  specimens. 

21.  C  longulus,  n.  sp. 

Tliis  species  closely  resembles  C.  faltu<>,  but  is  still  more  elongate  and 
clothed  with  hair-like  scales  both  above  and  beneath.  The  prothorax  is 
not  wider  than  long,  and  is  less  constricted  at  the  tip ;  the  punctures  are 
less  dense,  and  the  dorsal  line  is  indistinct.  The  prosternum  is  more  dis- 
tinctly sulcate,  and  the  fifth  ventral  segment  is  distinctly  longer  than  the 
fourth.     Length  4  mm.;  .10  inch. 

Texas.  Belfrage;  one  ^.  The  beak  is  nearly  smooth,  punctured  only 
towards  the  base.     The  first  ventral  segment  is  slightly  flattened. 

22.  C.  concinnus,  n.  sp. 

Elongate,  black,  with  a  slight  bronzed  tint,  thinly  clothed  with  white 
hairs,  becoming  capillary  scales  beneath.  Beak  as  long  as  the  protbon^x, 
slightly  curved,  frontal  impressicm  distinct.  Prothorax  a  liule  longer  than 
wide,  narrowed  and  feebly  constricted  in  front,  coarsely  but  not  deeply 
punctured,  finely  alutaceous.  Elytra  parallel,  conjointly  rounded  at  tip; 
striie  fine,  interspaces  wide,  feebly  punctulate.  Beneath  rather  coarsely 
punctured;  ])rosternum  with  two  small  fove*  near  the  tip;  not  emargiaate 
))ehind;  front  coxye  moderately  distant;  metatlioracic  side  pieces  narrow, 
fifth  ventral  segment  longer  than  the  fourth.  Funicle  of  antenna.'  ra  her 
stout  and  sliort,  sec. )nd  joint  not  longer  than  third.  Length  1.8-2.5  mm-; 
.07-10  inch. 

New  York,  Florida,  Texas.  The  beak  is  striate  and  more  deeply  punc- 
tured in  the  c^- 

23.  C.  confusus  Boh.,  Sch.  Cure,  iii,  740;  Mann.,  Bull.  Mosc.  1843,  2d, 
293. 

Southern  and  Western  States  ;  also  found  in  California,  according  to 
Mannerheim.  Elongate,  dull  black,  thinly  clothed  with  white  hairs, 
which  are  very  small  and  inconspicuous  above,  and  scale  like  beneath. 
Beak  as  long  as  the  prothorax,  slender,  slightly  curved.  Protliorax 
strongly  and  densely  punctured;  dorsal  line  narrow,  smooth;  sides  slightly 
oblique,  rounded  in  front,  and  feebly  constricted.  Elytra  with  deep  stri;t, 
intersjiaces  strongly  punctulate,  tips  conjointly  rounded.  Beneath  coarsely 
punctured,  prosternum  with  a  rounded  impression  near  the  tip;  not  emar- 
ginate  behind;  frjnt  coxse  moderately  separated,  metatlioracic  side  pices 
rather  narrow;  fifth  ventral  segment  a  li;tle  longer  than  the  fourth.  Funi- 
cle of  antennae  stout,  second  joint  scarcely  longer  than  third.  Length  2.8 
mm. ;  .11  inch. 

(^.  Pros'-ernum  armed  each  side  in  front  of  the  cox*  with  a  long  straight 


LeCoute.] 


BARIXI.  317 


horn;  })eak  mor3  distinctly  punctured  and  striate.  Varies  with  the  horns 
shorl. 

9.  Prosternum  flattened,  but  without  horns;  Leak  smonther,  punctured 
towards  the  base. 

Two  larger  sp:'cimens  from  Florida  have  the  prothorax  less  densely  punc- 
tured, and  the  fiftli  ventral  as  long  as  the  third  and  fourth  united;  in  the  r^ 
the  horns  are  merely  short  acute  cusps.  They  may  indicate  a  disJnct 
species,  but  I  pr.'fer  not  to  d.?finj  it  as  such  for  the  present. 

24.  O.  prolixus,  n.  sp. 

El.>ngat(',  shining  black,  with  a  slight  bronzed  lustre,  nearly  glabrous 
above.  Beak  slender,  slightly  curved,  as  long  as  the  protlu)rax;  frontal 
impression  wanting.  Prothorax  as  wide  as  long,  narrowed  in  front  tyid 
rounded  upon  the  sides,  broadly  but  not  deeply  constricted  in  front;  disc  less 
convex  than  usual,  sparsely  punctured.  Elytra  very  elongate,  parallel,  con- 
jointly rounded  at  tip;  strise  fine,  interspaces  wide,  with  small  distant  fine 
punctures;  disc  vaguely  impressed  behind  the  base.  Beneath  slightly  pubes- 
cent, not  deeply  punctured,  prosternum  broadly  concave,  with  a  small  square 
impression  near  the  tip;  front  coxai  not  widely  separated;  metathoracic  side 
pieces  narrow  ;  ventral  segmens  very  sparsely  punctured;  fifth  as  long  as 
the  third  and  fourth  united.  Funicle  of  antennae  rather  slender,  second 
joint  hardly  longer  than  third.     Length  4  mm.;  .15  incli. 

Massachusetts  and  Illinois;  tliree  specimens.  Somewhat  r  sembles  G- 
rectirotitris,  but  is  smaller,  and  quite  different  by  the  characters  given 
above. 

25.  C.  confinis,  n.  sp. 

This  species  exactly  resembles  C-  concinnu>i  in  size,  form  and  sculpture, . 
but  difiei's  by  the  finer  pubescence,  which  is  almost  inconspicuous  on  the 
upper  surface,  and  by  the  prosternum  having  one  small  but  deep  round 
fovea  near  the  tip,  instead  of  two  approximate  ones.  Length  2.3  mm.; 
.09  inch. 

New  York;  one  specimen. 

ZYG-OBAKIS  n.  g. 

Body  resembling  in  form  a  small  rolnist  Centrinus  Ce.  g.  picumnus),  but 
very  coarsely  sculptured  and  not  densely  clothed  with  scales.  Beak  as 
long  as  tiie  head  and  prothorax,  slender,  cjdindrical,  curved;  not  trans- 
versely impressed  at  the  base;  antenTial  grooves  commencing  nearly  one- 
third  from  the  tip,  descending  obliquely;  eyes  rather  large,  transverse,  not 
convex,  finely  granulated,  front  not  wider  than  the  beak  ;  liead  rather 
small.  Antennai  with  the  first  joint  of  funicle  elongate,  and  stou*er  than 
the  second;  2-7  gradually  stouter,  merging  into  the  club,  which  is  elongate- 
oval,  pointed,  pubescent  and  regularly  annulated,  the  basal  joint  not  being 
undulj"  large.  Prothorax  stronglj^  narrowed  in  front,  feeblj'  constricted, 
and  wi'hout  postocular  lobes  ;  base  Insinuate  ;  prosternum  long  in  front  of 
the  coxaj,  which  are  widely  separated,  impressed  near  the  front  margin. 


318  CURCULIOXID.^^..  [LeConte. 

Elytra  wider  at  base  tlian  the  prothorax,  humeri  rounded,  sides  obliquely 
uarrowed  behind  the  humeri,  tips  conjointly  rounded;  pygidium  entirely 
covered.  Middle  and  hind  coxae  widely  separated,  metasternum  longer 
than  first  ventral,  first  and  second  ventral  segmen's  each  equal  to  the  third 
and  tburtli  united;  the  fifth  but  little  longer  than  the  four;h;  first  ventral 
suture  parti-illy  etfaced,  second  and  third  slightly  angulated  at  the  sides. 
Legs  rather  long,  tibite  nioderatelj^  mucronate  at  tip;  tarsi  with  third  joint 
very  ])road,  bilcbed;  last  joint  rather  long,  with  the  claws  small;  connate 
at  base. 

Shining  black,  elytral  striiE  very  coarsely  punctured 1.  nitens- 

Dull  black,  elytral  striie  deep,  impunctured 2.  conspersa. 

1.  Z.  nitens,  n.  sp. 

Robust,  subrhomboidal,  shining  black,  thinly  sprinkled  with  small  white 
scales.  Beak  strongly  punctured,  a  little  longer  than  the  head  and  pro- 
thorax,  slendiT,  curved,  not  thicker  at  base,  where  it  is  slightly  constricted. 
Prothorax  very  coarsely  but  not  densely  punctured.  Elytra  with  fine 
strife,  marked  with  large,  distant  punctures,  interspaces  nearly  flat,  each 
with  a  row  of  equally  large  but  more  distant  punctures.  Beneath  very 
coarsely  punctured ;  claws  connate  for  more  than  half  their  length. 
Length  3.5  mm.;  .10  inch 

Key  West,  Florida;  one  specimen,  Mr.  Burgess. 

2.  Z.  conspersa,  n.  sp. 

Less  robust,  subrhomboidal,  dull  black,  moderately  densely  clothed  with 
yellow-brown  hair,  with  rows  of  small  distant  white  scales  upon  tl-.e  elytra. 
Beak  stouter  than  in  the  preceding,  slightly  thicker  at  base,  cylindrical, 
curved,  not  longer  than  the  prothorax,  not  impressed  at  base;  finely  punc- 
tured and  pubescent.  Prothorax  not  wider  than  long,  gradually  narrowed 
in  front,  sides  nearly  straight,  slightly  rounded  near  the  tip ;  surface 
strongly  and  densely  punctured;  base  bisinuate.  Elytra  wider  behind  the 
base,  humeri  obliquely  rounded,  strife  deep,  interspaces  elevated,  flat,  not 
very  wide,  densely  punctured.  Beneath  punctured,  rather  densely  clothed 
with  pale  brown  scales;  claws  approximate,  small,  slightly  connate  at  base. 
Length  2  mm. ;  .08  inch. 

Illinois;  B.  D.  Walsh;  seven  specimens.  The  funicle  of  the  antennae  is 
s'outer  than  in  the  preceding,  and  the  club  is  less  elongate.  The  general 
form  is  less  robust  and  more  rhomboidal. 

BARILEPTON  n.g. 

Body  very  elongate,  nearly  filiform,  clothed  with  pale  scales.  Beak  not 
slender,  as  long  as  the  prothorax,  suddenly  curved  near  the  base,  then  very 
slightly  curved;  base  somewhat  stouter,  feebly  impressed;  head  large,  con- 
vex. Antennal  grooves  commencing  about  the  middle,  deep,  descending 
obliquely.  Antennte  with  funicle  7-jointed,  first  joint  elongate,  stouter 
than  the  second;  2-7  nearly  equal  in  length,  gradually  wider,  club  rather 
large,  oval,  pubescent,  annulated.     Prothorax  a  little  longer  than  wide, 


LeConte. 


BARINI.  319 


sides  parallel,  rounded,  and  feebly  constricted  near  the  tip;  base  nearly 
straight-  .Elytra  elongate,  very  little  wider  than  the  prothorax,  conjointly 
rounded  at  tip,  pygidium  completely  covered.  Prosternum  moderately 
long  in  front  of  the  coxse,  which  are  very  slightly  separated;  mescsternum 
rather  narrow,  metasternum  long,  hind  coxte  widely  separated.  First, 
second  and  fifth  ventral  segments  long,  third  and  fourtli  together  a  little 
longer  than  tlie  second;  first  suture  parti}'  obliterated  at  tUt;  middle;  the 
others  are  distinctly  curved  at  the  sides.  Legs  rather  slender,  tibi*  feebly 
but  distinetljf  mucronate;  tarsi  with  the  third  joint  very  broad,  bilobed, 
last  joint  rather  long,  with  a  single  claw. 

1    B.  filiforme,  n.  sp. 

Elongate,  nearly  filiform,  black,  clothed  with  small  pale  scales.  Beak 
naked,  shining,  punctured;  head  thinly  pubescent,  punctulate.  Prothorax 
rather  densely,  but  not  very  strongly  punctured,  with  the  scales  lying 
transversely,  as  in  many  Centriims-  Elytra  with  fine  striae,  and  flat,  alu- 
taceous  interspaces.     Legs  brownish-     Length  2.5-3.3  mm.;  .1C-.13  inch. 

Virginia,  Illinois,  Nebraska;  three  specimens. 

EUCH^TES  n.  g. 

Body  resembling  in  form  a  r.)bust  Centriivux,  but  with  comparatively 
larger  prothorax,  more  rounded  on  the  sides;  covered  with  a  deiise  crust 
of  dirt-colored  scales,  and  with  very  long  stiff  erect  bristles.  Beak  nearlj^ 
as  long  as  the  body,  much  stouter  from  the  base  to  the  insertion  of  the 
antennae,  then  slender  and  strongly  curved  for  the  remaining  two-thirds 
of  the  length,  base  constricted  beneath,  and  somewhat  protuberant;  anten- 
nal  grooves  confluent  behind;  eyes  transverse,  finely  granulated;  head  im- 
mersed in  prothorax  nearly  to  the  eyes.  Antenna?  with  the  scape  extend- 
ing to  the  eyes,  gradually  thickened  externally;  funicle  7-jointed  slender, 
longer  than  the  scape;  first  and  second  joints  longer,  equal;  seventh 
broader,  rather  closely  connected  with  the  club,  which  is  elongate-oval, 
pubescent,  and  indistinctly  annulated.  Prothorax  rounded  on  the  sides, 
slightly  bisinuatc  at  base,  narrowed  and  tubularly  constricted  at  tip,  with- 
out postocular  lobes.  Scutellum  larger  than  usual.  Elytra  narrowed  be- 
hind, tips  separately  rounded,  pygidium  not  exposed.  Prosternum  trun- 
cate in  front,  stronglj'  impressed  transversely,  not  foveate,  nor  flattened; 
front  coxoe  very  widely  separated;  middle  and  hind  coxse  very  widely  sep- 
arated; side  pieces  of  mesothorax  of  the  same  form  as  in  CentrliiHs;  those 
of  the  metathorax  narrow.  First  and  second  ventral  segments  very  large, 
third  and  fourth  united  shorter  than  either,  fifth  a  little  longer  than  fourth. 
Legs  moderate,  thighs  sinuate,  and  somewhat  clavate;  tibiae  nearly  as  long 
as  the  thighs,  straight,  strongly  unguiculate  at  the  outer  side  of  the  apex; 
tarsi  rather  long,  slender,  third  joint  not  wider  than  the  second;  fourth 
joint  as  long  as  the  others  united,  with  rather  large,  divergent,  simple 
claws. 

This  is  one  of  the  most  remarkable  insects  in  our  fauna,  from  the  length 
and  stiffness  of  the  bristles,  Avhich  are  almost  spiniform. 


320  CURCULIONID^.  [LeConte. 

1.  E.  echidna,  n-  sp. 

Oval,  not  convex,  narrowed  before  and  behind,  covered  with  a  crust  of 
dirt-colored  scales,  and  with  long  stiff  bristles,  less  evident  on  the  under 
surface.  Prothorax  very  uneven;  elytra  with  narrow  striae,  interspaces 
wide.  Outer  part  of  beak  naked,  brown,  shining,  somewhat  punctured. 
Length  2.5  mm.;  .10  inch. 

Illinois;  one  specimen  given  by  Dr.  S.  V.  Summers  to  Dr.  Horn. 

PLOOAMUS  n.  g. 

Of  the  form  of  an  elongate  Centrinufi,  clothed  with  a  dense  crust  of  gray 
scales,  with  short  erect  bristles  intermixed.  Beak  as  long  as  the  head  and 
prothorax,  slender,  curved,  slightly  and  gradually  thickened  behind  the 
ant'.mniTe,  which  are  inserted  one-third  of  the  length  from  the  base;  eyes 
transvers?,  finely  granulated.  Antenmt  similar  to  those  of  EacJueteH,  but 
with  the  funicle  shorter  and  less  slender;  second  joint  not  longer  than  third. 
Head  less  immersed  in  the  prothorax;  the  latter  is  scarcely  rounded  on  the 
sides,  which  are  obliqus,  very  strongly  constricted  in  front,  without  post- 
ocular  lobes,  slightlj^  bisinuate  at  base,  scutellar  lobe  indented,  and  slightly 
eraargina'e.  Scutellum  ratlier  larger  than  usual.  Elytra  a  little  wider  than 
the  prothorax,  sides  parallel,  regularly  rounded  at  tip.  Under  surface  and 
legs,  exactly  as  in  Euduetes. 

P.  hispidulus,  n.  sp. 

ElouLjate,  blackish  brown,  densely  clothed  with  a  crust  of  gray  scales, 
with  sliort,  erect  pale  bristles.  Beak  brown,  naked  beyond  the  antenntB, 
which  are  idso  brown.  Prothorax  somewhat  uneven,  deeply  and  densely 
punctui'ed.  Elytra  s:imewhat  clouded  wi;]i  darker  gray,  especiall}'  by  a 
transverse  spot  about  the  middle;  strife  deep,  interspaces  not  wide,  slightly 
convex;  humeri  oblique,  ob'use,  scarcely  rounded      Length  2  mm. ;  .08. 

Southern  States.  I  am  indebted  to  Mr.  Ulke  for  several  specimens  found 
at  Waslungton,  D.  C.  I  have  adopted  the  name  under  which  it  appears  in 
Dej  an's  Catalogue. 

Tribe  XX.     iioRMOPlsri. 

The  sub-family  of  genuine  Curctilionidce  fitly  clos?s  with  a  A^ery  anoma- 
lous insect,  which  while  having  relations  with  several  of  the  earlier  tribes, 
exhibits  in  addition  a  character  which  is  otherwise  seen  in  one  of  the  sub- 
families of  the  Calandridte.  The  eyes,  namely,  are  very  large,  transverse, 
and  coarsely  granulated;  they  are  widely  sepai'ated  above,  but  are  nearly 
contiguous  benca'h.  It  follows  from  this  that  the  antennae  in  repose  must 
be  received  in  front  of  the  eyes,  which  therefore  form  as  it  were  a  collar  be- 
neath; and  the  anteunal  grooves,  which  are  deep  and  oblique,  attaining  the 
eyes  near  the  upper  end,  are  suddenly  and  acutely  flexed  beneath,  forming 
a  deep,  transverse  excavation  in  fnmt  of  the  eyes. 

The  beak  is  shorter  than  the  proiiorax,  s'.out,  somewhat  flattened,  a  little 
wider  at  tip  than  base;  the  mandibles  are  rather  flattened,  acute  at  tip, 
toothed  on  the  inner  side.     The  gular  peduncle  is  small  and  narrow,  emar- 


LeConte. 


HORMOPINI.  321 


ginate  at  tip;  the  mentum  is  neiirly  round,  and  the  ligula  and  palpi  are  not 
prominent;  maxillis  exposed.  Antennae  inserted  near  the  tip  of  tlie  beali, 
geniculate,  scape  long,  slender,  slightly  clavate,  funicle  somewhat  stout, 
first  joint  long,  clavate,  equal  to  the  four  following;  2-7  short,  outer 
ones  a  little  wider,  club  small,  oval,  pubescent,  annula^ed.  Prothorax 
rounded  at  the  sides  and  base,  truncate  in  front,  without  postocular  lobes; 
prosternum  feebly  emarginate  beneath,  front  coxfe  contiguous.  Elytra  ob- 
long-oval, a  little  wider  than  the  prothorax,  humeri  rounded,  pj^gidium  en- 
tirely covered ;  scutellum  small,  rounded.  Mesosternum  moderately  wide, 
middle  coxse  separated,  side  pieces  diagonally  divided,  not  ascending  be- 
tween the  elytra  and  base  of  prothorax.  Metasternum  rather  long,  side 
pieces  narrow;  hind  coxse  moderately  separated.  Ventral  segments  first 
and  second  longer,  separated  by  a  slightly  arcuate  distinct  suture;  third  and 
fourth  short,  separated  by  straight  sutures;  fifth  as  long  as  third  and  fourth 
united,  broadlj'^  rounded  behind.  Legs  rather  short,  stout;  thighs  thick, 
not  clavate,  sinuate  beneath  near  the  tip,  not  toothed;  tibite  obliquely  trun- 
cate at  tip,  wi.h  a  small  hook  at  the  inner  apical  angle;  tarsi  two-thirds 
as  long  as  the  tibiae,  dilated,  spongy  beneath,  third  joint  broad,  bilobed; 
fourth  joint  not  elongate,  slender,  with  small,  approximate  claws,  which 
are  slightly  connate  at  base. 

HORMOPS  n.  g. 

The  single  species  representing  this  genus  and  tribe  in  our  fauna,  is  a 
small,  inconspicuous  black  insect,  thinly  clothed  with  rather  coarse  yellow 
hair,  and  reminds  one  in  general  appearance  of  the  Erirhine  genus  Procai 
(p.  163).  The  characters  as  above  detailed  are  quite  anomalous,  and  no 
further  generic  description  is  at  present  necessar3^  It  is  possible  that  it 
may  have  relations  with  some  of  the  anomalous  genera  placed  by  Mr.  Wol- 
laslon  among  the  Cossonidm,  but  as  I  have  had  no-opportunity  of  studying 
them  in  nature,  I  can  but  timidly  suggest  the  propriety  of  comparing  this 
genus  with  those  genera  of  Cossonidce  in  which  the  eyes  are  disposed  to  be- 
come confluent  beneath.  Tlie  entire  fiicies  of  this  insect  is  so  purely  Cur- 
culionideous  that  (the  sexual  characters  being  unknown),  I  would  be  un- 
willing to  place  it  in  any  other  famil}\ 

1.  H.  abducens,  n.  sp. 

Brownish  black,  not  shining,  thinly  clothed  with  yellow  pubescence, 
head  and  beak  denselj^  punctured;  prothorax  wider  than  long,  rounded 
on  the  sides,  feebly  constricted  neaf  the  tip,  broadly  rounded  at  the 
base;  strongly  but  not  very  coarsely  or  densely  punctured,  rather  shining, 
without  dis'.inct  trace  of  dorsal  smooth  line.  Elytra  wider  than  pro- 
thorax, feebly  emarginate  at  base;  humeri  rounded,  sides  slightly  rounded, 
tips  conjointly  broadly  rounded;  disc  somewhat  flattened,  striae  well 
impressed,  slightly  punctured,  interspaces  nearly  flat,  punc'ulate.  Be- 
neath strongly  and  densely  punctured,  last  ventral  more  finely  punctured; 
pubescence  similar  to  that  of  the  upper  surface.     Length  4  mm. ;  .1.5  inch. 

Capron,  Florida;  April;  Messrs.  Hubbard  and  Schwarz;  one  specimen. 

PUOC.  AMER.  PHILOS.  SOC.   XV.  96.  30 


822  CURCULIONID^. 


Subfamily   V.     BALANINID^. 


[LeConte. 


The  single  genus  which  constitutes  this  subfamily  has  been  heretofore 
arranged  as  a  tribe,  in  the  vicinity  of  Anthonomini.  It  differs,  however,  from 
that  tribe,  as  from  all  other  Coleoptera,  known  to  me  by  the  movement  of  the 
mandibles  being  vertical  instead  of  horizontal  ;*  the  mandibles  are  short,  pyr- 
amidal and  acute,  and  the  condyle  is  on  the  upper  side;  the  teeth  seen  in  most 
Curculionidiie  are  wanting;  the  inner  edge  is  mor^-  convexly  curved  than  the 
outer,  so  that  in  the  ordinary  position,  the  points  seem  slightly  divergent.  In 
general  appearance,  as  well  as  by  the  extension  of  the  mesothoracic  epimera, 
so  as  to  give  an  oblique  outline  to  the  elytra  near  the  base,  this  subfamily 
seems  to  me  to  approach  Centrinus  more  than  Antkonomus ;  the  rt suit  of 
this  obliquity  is  that  the  tenth  elytral  stria  commences  at  the  margin,  oppo- 
site the  anterior  end  of  the  metathoracic  episterna,  as  in  all  Barini. 

The  beak  attains  in  length  and  attenuation  the  greatest  development;  in 
the  (^  it  is  rarely  shorter  than  the  body;  in  the  $  it  is  frequently  twice 
the  lengtb,  and  is  used  to  make  the  perforation  into  which  the  egg  is  sub- 
sequently introduced.  The  great  thickness  of  the  husks  of  the  fruits 
(chestnuts,  walnuts,  hickory  nuts,  &c.),  depredated  on  by  these  insects, 
necessitates  a  very  long  perforating  instrument  to  reach  the  kernel,  upon 
which  the  larva  feeds. 

The  mouth  organs  are  small,  the  gular  peduncle  very  long  and  narrow. 
The  antenniB  are  inserted  a  little  before  the  middle  ((j^),  or  behind  the 
middle  ( 9 )  of  the  beak,  and  are  very  long  and  slender;  the  funicle  is 
7-jointed;  the  first  joint  is  either  longer  or  shorter  than  the  second,  and  the 
outer  joints  are  gradually  a  little  less  elongated;  club  elongate  oval,  pointed, 
annulated  and  pubescent.  Eyes  rather  large,  flat,  nearly  rounded,  finely 
granulated.  Prothorax  rather  long  in  front  of  the  coxie,  which  are  contig- 
uous; broadly  emarginate  in  front,  without  postocular  lobes;  pronotum 
rapidly  narrowed  in  front,  sides  rounded,  base  slightly  bisinuate.  Scutel- 
lum  distinct.  Elytra  narrowed  behind,  tips  separately  rounded,  pygidium 
more  or  less  exposed.  Side  pieces  of  mesothorax  attaining  widely  the  base 
of  the  prothorax,  and  truncating  the  humeral  outline  of  the  elytra;  meta- 
thoracic episterna  narrow,  dilaed  in  front.  First  ventral  segment  longer 
than  the  second,  and  closely  united  with  it;  the  others  are  nearly  equal  in 
length.  Middle  coxse  moderately  distant,  hind  coxae  widely  distant,  not 
attaining  the  elytral  margin.  Legs  long,  thighs  clavate  and  strongly 
toothed  in  our  species;  tibi*  slender;  truncate  at  tip,  not  mucronate  ; 
tarsi  dilated,  claws  divergent,   toothed. 

BALANINUS  Germ. 

I  have  nothing  to  add  to  the  exc'llent  synopsis  of  oar  six  species  given 
by  Dr.  Horn,  as  above  cited. 

B.  porrectus  Boh.,  Sch.  Cure,  vii,  293  still  remains  unknown. 

*Horn,  Proc.  Am.  Pliil.  Soc,  1«73,  457. 


LeConte.]  BRENTHID^.  323 

Family  YII.     BRENTHID^E. 

Mouth  organs  very  different,  according  to  genus  and  sex;  maxillte,  ligula 
and  palpi  concealed  in  the  species  of  the  first  sub-family  in  our  fauna  by  the 
mentuni,  Avhich  in  the  (^  is  transverse  and  concave,  in  the  9  narrow  and 
convex.  Mandibles  in  (J^  curved,  flattened,  pointed,  more  or  less  toothed 
on  the  inner  edge;  in  the  9  stout,  small,  pincer-shaped,  toothed  on  the 
apical  edge.  Maxilte  exposed  in  Cyladidie  in  both  sexes,  mentuni  oblong, 
and  supported  on  a  short  gular  peduncle,  which  is  wanting  in  true  Bren- 
thidm;  mandibles  short,  pincer-shaped. 

Antennae  inserted  in  lateral  fovese  at  a  greater  or  less  distance  in  front  of 
the  eyes,  according  to  genus  and  sex;  not  geniculate,  11-jointed  in  true 
Brenthidce,  lOjointed  in  Cyladidce;  outer  joints  finely  pubescent  and  sen- 
sitive; basal  joint  stouter  and  a  little  longer  than  the  second. 

Head  elongated,  constricted  behind,  except  in  Cylas ;  eyes  rounded, 
small,  not  granulated;  labrum  wanting. 

Prothorax  very  elongate,  truncate  before  and  behind,  without  trace  of 
postocular  lobes;  turned  into  a  peduncle  behind,  with  a  broad  basal  bead; 
prosternum  very  long  in  front  of  the  coxae;  prosternal  sutures  entirely  oblit- 
erated; coxae  separate  in  Brenthidce,  conical,  prominent,  and  contiguous  in 
Cylas  ;  in  both  the  median  suture  behind  the  coxae  is  very  evident. 

Mesc'sternum  moderately  long,  side  pieces  diagonally  divided,  cpimerfi 
pointed  in  front,  not  attaining  the  base  of  the  prothorax;  coxae  rounded, 
separate  {Brenthidce),  nearly  contiguous  {Cylas). 

Metasternum  very  long,  episterna  narrow ;  hind  coxae  transverse  oval,, 
separated. 

Elytra  elongate,  covering  entirely  the  pj^gidium,  with  a  fold  on  the  inner 
surface  close  to  the  margin,  which  commences  near  the  base,  and  diverges- 
obliquely  near  the  tip,  and  extends  to  the  sutural  edge  in  Brenthidce,  and 
nearly  there  in  Cylas.     Wings  well  developed. 

Abdomen  with  five  ventral  segments,  of  which  the  first  and  second  are 
very  long,  and  united  by  an  indistinct  suture;  third  and  fourth  short,  fifth  a 
little  longer,  flat,  rounded  behind;  sutures  straight.  Dorsal  segments  mem- 
branous, except  the  last,  which  is  corneous;  anal  segment  of  (^  rather 
large,  rounded.  The  acute  edge  of  the  ventral  segments  and  of  the  meta- 
thorax  is  prominent  and  fits,  as  usual,  into  the  elytral  groove. 

Legs  not  slender,  moderate  in  lengtli;  thighs  clavate,  front  tibite  sinuate,, 
and  obliquely  gi'ooved  on  the  inner  side  in  Brenthidce,,  and  armed  with  a 
hook  on  the  outer  tip,  and  a  spine  on  the  inner;  middle  and  hind  tibia? 
truncae  at  tip,  with  two  small  fixed  spurs.  In  Cylas  the  tibi;e  are  all: 
slender,  straight  and  not  mucronate  at  tip.  Tarsi  spongy  pubescent  be- 
neath, with  the  third  joint  1)ilobed.  Claws  large,  simple  and  divergent,. 
except  in  Cylas,  where  they  are  small  and  connate  at  base. 

This  highlj'  specialized  family  is  the  last  of  those  in  which  the  male  is 
provided  with  an  additional  dorsal  segment.  The  mouth  organs  vary  to  a 
greater  degree  than  they  do  in  CurcuUonidce,  though  usually  the  mentum.  is 


324  BRE>fTHID.E. 


[LeConte. 


developed  to  such  an  extent  as  to  conceal  the  ligula  and  labial  palpi.  Of  the 
genera  known  to  me  Cylas  is  the  only  one  in  which  the  maxillfe  are  ex- 
posed bj'  the  mentum  not  filling  completely  the  buccal  cavity,  though  other 
cases  are  mentioned  by  Lacordaire. 

But  what  is  most  curious,  is  that  while  the  mandibles  of  the  9  preserve 
the  pincer-form  seen  in  many  Curculionidce,  and  the  beak  is  slender,  and 
in  some  species  extremely  long,  for  the  purpose  of  performing  its  function 
as  an  accessory  organ  of  generation,*  in  the  ^J*  the  mandibles  assume  a  flat, 
curved,  and  pointed  form,  resembling  those  of  ordinary  Coleoptera.  This 
sexual  character  is  exhibited  even  in  those  genera  in  which  the  beak  of  the 
(^  is  nearly  as  slender,  and  the  moulh  as  small  as  in  the  9- 

The  explanation  of  this  difference  in  the  mandibular  structure  is  afforded 
by  the  interesting  remarks  of  Mr.  A.  R.  Wallace,  concerning  the  wonder- 
ful pugnacity  of  the  (J^  (J'  when  in  proximity  to  the  9  •  An  excellent  ac- 
count of  the  assistance  given  by  the  (^  to  the  9  when  she  is  occupied  in 
boring  the  hole  in  which  the  egg  is  placed,  is  also  given  by  C.  V.  Riley.f 
from  observations  made  by  his  correspondent  W.  R.  Howard,  of  Forsytli, 
Missouri. 

These  combats,  however,  result  in  no  injury  to  either  of  the  parties  en- 
gaged; the  dense  chitinous  covering  affords  a  perfect  protection;  the 
weaker  male,  overcome  by  exhaustion,  eventually  flees,  and  leaves  to  his 
more  vigorous  victor  the  honorable  task  of  guarding  and  assisting  the  fair 
object  of  strife  in  her  efforts  to  preserve  the  species. 

The  habits,  therefore,  of  these  insects,  as  well  as  their  peculiarities  of 
structure,  deserve  a  closer  attention  than  has  yet  been  given  to  them. 

The  smooth  eyes,  the  reticulations  of  which  are  seen  only  through  the 
transparent  integument,  and  the  form  of  the  front  tibiae,  indicate  a  resem- 
blance, though  a  remote  one,  to  Bhyssodidce.  such  as  might  perhaps  exist 
among  objects  of  quite  different  nature  originating  in  the  same  period  of 
time.  The  geographical  distribution  of  the  Bventhidie  is  also  favorable  to 
the  idea  that  they  represent  a  tolerably  ancient  form  of  life. 

The  great  extension  of  the  longitudinal  axis  of  the  body  exceeds  in  some 
members  of  this  family  any  proportion  that  occurs  in  other  Coleoptera;  and 
it  is  singular  to  see  that  a  character,  wiiich  usually  indicates  feebleness  of 
development,  is  here  associated  with  densely  chitinized  integuments,  and 
great  complication  of  domestic  life. 

The  family  divides  itself  naturally  into  two  sulifamilies,  the  characters 
of  which  have  been  sufficiently  exposed  above. 

Antennae  11-jointed,  last  joint  oval,  pointed,  not  larger,  BRENTHID..ffi. 
Antennae  10-jointed;  last  joint  very  elongate, CYLADID-ffi. 

*  Harris,  Ins.  Inj.  "Veg.  .M  ed.  6^;  Wallace,  Malay  Arcliipelago  (ed.  Harper),  p. 
4S2;  Riley,  Sixth  Annual  Report,  Ins.  of  Mi.ssouri,  p.  115.  These  autliors  men- 
tion that  the  ?  makes  with  her  beak  deep  perforations  in  tlie  tree,  and  deposits 
an  egg  in  each  one  of  them;  Lee.,  Am.  Journ.  .Sc.  and  Arts,  1867. 

t  Sixth  Annual  Report  on  the  Noxious,  &c.,  Insects  of  Missouri,  1874,  p.  415. 


LeConte.J  ARRIIENODINI.  325 

Subfiimily    I.       BRENTHID^    (genuini). 

Of  this  family  two  genera  belong  in  the  faunal  limits  treated  of  in  this 
memoir,  though  one  of  them  [Brenthus),  is  in  a  political  sense  extralimital, 
having  occurred  in  Lower  California. 

These  two  genera  represent  in  the  arrangement  of  Lacordaire  separate 
groups,  but  in  the  plan  of  subordination  of  characters  herein  adopted,  they 
seem  to  indicate  what  1  have  called  tribes,  which  may  be  distinguished  by 
the  sexual  and  other  ditterences  in  the  head,  as  well  as  by  the  torm  of  the 
prothorax. 

Beak  very  dissimilar  in  the  two  sexes;  antennse  not  very  remote  from 
the  eyes,  rather  slender,  not  compressed,  nor  clavate;  prothorax  convex, 
not  grooved akrhe:<«ouini. 

Beak  slender  in  both  sexes;  antennae  far  distant  from 
the  eyes,  somewhat  thickened  and  stouter  externally; 
prothorax  deeply  grooved  towards  the  base. . .   brenthini. 

Tribe  I.     arkhenodini. 

The  genus  Eupsalis,  represented  in  our  fauna  by  a  single  species,  differs 
from  Arrhenodes  by  the  brilliant  lustre  of  the  surface,  and  by  the  hind  part 
of  the  head  being  less  prominent;  in  view  of  the  magnitude  of  the  varia- 
tions in  the  rf  (^,  which  I  have  mentioned  below,  I  have  great  doubt  of 
the  generic  value  of  these  characters;  nevertheless,  my  opinion  can  only 
be  tested  by  a  careful  study  of  foreign  species,  which  would  interrupt  the 
progress  of  the  present  memoir,  and  is,  moreover,  not  essential  for  the  elu- 
cidation of  our  own  fauna. 

The  distribution  of  Eupsalis,  even  as  thus  limited,  is  remarkable;  one 
species  in  North  America,  one  species  in  Guinea,  and  one  in  Madagascar, 
and  perhaps  one  in  Brazil.  It  is  worthy  of  remark  in  this  connection,  that 
the  genus  Amorphocephalus,  the  only  Breuthide  found  in  Europe,  is  also 
represented  in  Australia.* 

EUPSALIS  Lac. 

1.  E.  minuta  Riley,  6th  Mo.  Report,  113;  (larva  correctly  determined, 
described  and  figured);  Curculio  minutus  Urury,  Ins.  i,  95,  Tab.  42,  f.  3,  7, 
name  given  in  index,  vol.  ii,  (9  );  Herbst,  Kafer,  vii,  300;  Tab.  108,  f.  9, 
(9);  Oliv.  Enc.  Meth.  ii,  192;  B.  maxillosus  Oliv.  Ins.  iv.  No.  84,  Tab. 
1,  f.  1,  and  Tab.  2,  f.  17,  (J^?);  Gyll.,  Sch.  Cure,  i,  326. 

B-  septemtrionis  Herbst,  Kafer,  vii^  183,  Tab.  108,  f.  5,  {(^);  B.  bvunneus 
Panzer,  ed.  Voet,  iv,  44;  B.  distans  Panzer,  ibid. 

B.  {Arrhenodes)  septemtrionis  Harris,  Ins.  Inj.  Veg.  3d  ed.  68;  (larva  er- 
roneously determined  and  described) ;  Eupsalis  maxillosus  Horn,  Tr.  Am. 
Ent.  Soc.  iv,  127. 

Abundant  from  Lake  Superior  to  Texas,  and  from  New  England  to  Col- 
orado; bores  into  the  heart  wood  of  various  oaks,  usually  after  they  have 
been  felled,  though  sometimes  while  the  tree  is  still  living;  the  white,  the 

*Lacordaire,  Gen.  Col.  vii,  421 


32(5  BRENTHID^. 


[LeConte. 


black,  the  red  and  the  post  oaks  are  mentioned  as  those  which  are  known 
to  be  attacked.  By  some  curious  inadvertence,  Olivier  in  the  Encyclopedie 
Methodique  cites  for  this  species  No.  84,  plate  ii,  f.  9;  a  totally  distinct  spe- 
cies, which  in  the  text  (v,  439)  is  named  B.  militaris. 

A  description  of  this  very  well  known  insect  is  here  unnecessary,  but  a 
notice  of  the  variations  which  I  have  observed  in  the  head  of  the  males 
may  be  of  interest. 

The  females  vary  in  length  from  6.5  to  14  mm.;  .25  to  .56  inch.,  from 
the  eyes  to  the  tip  of  the  elytra.  The  head  is  rather  strongly  constricted 
immediately  behind  the  eyes,  which  are  convex  and  prominent.  Imme- 
diately in  front  of  each  eye  is  a  deep  fovea;  and  in  advance  of  them  is  a 
deep  frontal  excavation;  the  ridges  above  the  insertion  of  the  antennte  are 
prominent,  and  not  angulated;  the  beak  in  front  of  the  antenna?  is  as  long 
as  the  joints  1-9  of  the  antennas,  which  are  shorter  and  stouter  than  in  the  (^. 

The  males  vary  in  length  from  7.2  to  17  mm.;  .28-. 67  inch,  from  the 
eyes  to  the  tip  of  the  elytra.  The  head  aft'ects  three  different  forms,  which 
seem  to  be  independent  of  size  : 

1.  The  head  is  suddenlj^  but  not  strongly  constricted  behind  the  eyes, 
with  the  lateral  angles  obtuse,  but  distinctly  outlined;  the  ridges  above  the 
antennfe  are  very  prominent,  angulated  behind,  and  separated  from  the 
front  bj^  a  deep  impression;  the  frontal  impression  is  large  and  deep,  and 
the  median  elevation  in  it  is  feeble;  the  beak  in  front  of  the  antennte  is 
strongly  dilated,  much  wider  than  long,  with  scattered  elevated  granules, 
and  with  a  well  developed  ridge  each  side,  which  is  suddenly  more  elevated 
at  its  posterior  end;  there  are  also  two  shallow  impressions.  The  mandi- 
bles are  as  long  as  the  beak  in  front  of  the  antennae;  the  cusp  on  the  inner 
side  is  distinct  and  the  apex  of  the  right  mandible  has  three  cusps,  that  of 
the  right  but  two.     This  form  occurs  in  Michigan  and  Georgia. 

2.  The  beak  in  front  of  the  antenna  is  not  transverse,  but  fully  as  wide 
as  long;  the  other  characters  as  in  (1).  This  form  occurs  in  Kansas  and 
Texas. 

3.  The  beak  in  front  of  the  antennae  is  nearly  twice  as  long  as  wide,  the 
lateral  ridges  less  developed,  the  granulations  more  numerous,  the  mandi- 
bles comparatively  shorter  and  stouter;  the  frontal  impression  more  elon- 
gated, with  the  median  elevation  more  distinct;  the  ridges  above  the  inser- 
tion of  the  antennae  are  less  prominent,  not  angulated  behind,  and  the  head 
is  less  suddenly  constricted  behind  the  eyes,  with  the  angles  so  much 
rounded  as  to  be  nearly  eflaced. 

These  characters  are  somewhat  similar,  as  regards  the  development  of 
the  supra-antennal  ridges  to  those  observed  in  Lucanidw,  but  in  the' varia- 
tion of  the  length  of  the  beak  are  rather  anomalous.  They  indicate,  how- 
ever, the  propriety  of  recasting  the  classification  of  this  family,  and  defining 
the  genera  and  species  by  the  invariable  characters  of  the  female,  rather 
than  by  the  perhaps  individual  modifications  of  the  male. 

The  measurements  given  above  show  a  slight  average  superiority  of  size 
in  the  male,  but  not  sufficient  to  warrant  any  generalization  in  favor  of 


LeConte.] 


BRENTHINI.  32t 


sexual  selection,  produced  by  the  bloodless  combats  of  these  insects;  which 
seem,  so  far  as  the  records  go,  to  be  actuated  rather  hy  cliivalric  sentiment, 
than  by  animal  passion. 

Tribe  II.     brebtthiki. 

Two  species  of  BrentJius  collected  by  Mr.  Xautus,  at  Cape  San  Lucas, 
Lower  California,  which  are  closely  allied  to  Mexican  species,  have  been 
fully  described  by  Dr.  Horn.*  I  observe  in  the  males  also  great  variation 
in  the  form  of  the  head  in  different  individuals,  although  the  beak,  though 
shorter,  is  as  slender  in  the  ^T  as  in  the  9-  and  tlie  mandibles  are  equally 
small,  but  different  in  form;  the  distance  from  the  eyes  to  the  insertion  of 
the  antennte  is  proportionally  longer  in  the  larger  males. 

The  head  is  deeply  excavated  beneath,  just  in  front  of  the  neck,  in 
B.  peninsular  in,  while  it  is  only  slightly  so  in  B.  lucanus.  In  B.  me.ci- 
canus  there  is  a  short  but  deep  groove  in  the  same  position.  The  front 
femora  alone  are  toothed  in  B.  mexieanus  and  lucanus,  while  they  are  all 
toothed  in  peninsularis. 

Subfamily    II.       CYLADID^. 

This  sub-family  represents  the  tribe  Gylades,  of  Lacordaire,  placed  l)y 
him  between  Eurhynchns  and  Apion,  and  consists  of  but  two  genera,  one 
of  which,  Cylas,  occurs  in  Asia  and  Africa,  while  the  other,  Myrmecacelu'^, 
is  found  in  Australia.  I  have  sufficiently  exposed  the  characters  of  this 
subfamily  in  the  description  of  the  family,  and  the  singular  form  of  the 
antenna;,  as  well  as  the  very  peculiar  appearance  of  the  insjct,  will  enable 
it  to  be  easily  recognized. 

The  relations  of  these  insects  with  Brenthidce  were  well  recognized  by 
Fabricius,  Latreille  and  Olivier,  and  I  know  not  for  what  reason  they  liave 
been  lost  sight  of  by  more  recent  observers. 

CYLAS  Latr. 

1.  O.  formicarius  Olivier,  Ent.  84,  bis,  p.  446;  Tab.  3,  f.  19;  Brentm 
form.  Fabr.  Syst.  El.  ii,  549;  Ent.  Syst.  Suppl.  174;  Attelabm  form.  Fabr. 
Ent.  Syst.  Suppl.  163;  C.  turcipennis  Boh.,  Sch.  Cure,  i,  369.  Otidoceph- 
alus  elegantulus  Summers,  New  Orleans  Homj  Journal,  Jan.  and  Dec. 
18T5. 

Cochin  China,  India,  Madagascar,  "Cuba  and  Louisiana.  Depredates  on 
the  roots  of  sweet-potato  (^Convolvulus  batata). 

Body  very  elongate,  smooth  and  shining,  ferruginous,  with  the  elytra 
bluish  black.  Head  and  beak  dusky,  the  latter  twice  as  long  as  the  head, 
stout,  cylindrical,  nearly  straight,  finely  punctured  towards  the  base;  an- 
tennae inserted  near  the  middle;  eyes  smooth,  rounded,  reticulations  very 
distinct  beneath  the  epidermis.  Prothorax  twice  as  long  as  wide,  not  con- 
stricted in  front,  but  very  deeply  strangulated  at  the  posterior  third.   Elytra 

*  Trans.  Am.  Ent.  See.  iv,  128. 


328  CALANDKID^. 


[LeConte. 


eloiigate-oval,  a  little  wider  than  the  prothorax,  very  convex,  humeri  very 
oblique;  surfoce  feebly  and  sparsely  punctulate.  Under  surface  of  trunk 
and  abdomen  dusky.     Length  5.8  mm. ;  2.3  inch. 

(^.  Last  joint  of  antennae  longer  than  the  others  united. 

9 .  Last  joint  of  antennse  shorter  tlian  the  others  united. 

The  species  of  this  genus  ai-e  declared  by  Lacordaire  to  be  apterous,  and 
so  one  would  naturally  suppose  from  the  form  of  the  body.  On  dissec  ion, 
however,  the  wrings  are  found  to  be  very  well  developed,  and  the  elytra 
not  connate. 

Family  YIII.     CALAIN^DRID^. 

Mouth  cavity  variable  according  to  subfamily,  as  follows: 

1.  Gular  peduncle  very  long,  concealing  the  mentum  and  ligula,  buccal 
fissures  narrow  and  long;  mandibles  compressed,  wi.h  three  apical  teeth 
in  Calandrida  {genuini). 

2.  Floor  <^f  the  mouth  so  prolonged  that  all  of  the  organs  are  concealed, 
except  the  mandibles,  which  are  convex  on  the  inner  face,  with  three  apical 
teeth,  and  usually  diverge  externally  in  Rhinidce. 

3.  Gular  peduncle  rather  broad,  mentum  trapezoidal,  transverse;  maxil- 
lary palpi  rather  large;  mandibles  flattened,  curved,  with  the  apex  acute, 
and  one  prominent  tooth  on  the  inner  edge,  in  Gossonidm. 

Antenna}  geniculate,  inserted  near  the  base  of  the  beak  (Calandridw), 
or  about  the  middle  {Rhinidce,  and  Cossonidce);  scape  long,  funicle  vary- 
ing from  four  to  seven  joints;  club  variable,  with  the  basal  part,  and  some- 
times nearly  the  whole  surface  shining,  not  sensitive:  oval  and  annulated  as 
usual  in  Cossomdce. 

Head  porrected,  beak  at  most  capable  of  being  deflexed  vertically,  never 
narrowed  behind  the  ej'es;  beak  sometimes  long,  sometimes  short;  eyes 
sometimes  small,  sometimes  very  large  and  transverse,  contiguous  beneath 
{Rhinid(Ji) ;  antennal  grooves  very  short,  and  not  receiving  the  scape  in 
Calandridce,  suddenly  deflexed  under  the  eyes,  and  receiving  the  scape  in 
Cossonida. 

Prothorax  truncate  in  front,  not  emarginate  beneath,  prosternum  long  in 
front  of  the  coxae,  which  are  separated;  prosternal  sutures  effiiced;  the 
transverse  suture  between  the  coxae  is  wanting  in  Calandridte  and  Cosso- 
nidm,  but  distinct  in  Rhinidce. 

Mesosternum  triangular,  truncate  behind,  side  pieces  varying  according 
to  genus  and  tribe;  middle  coxae  separated,  cavities  rounded. 

Metasternum  usually  long,  episterna  varying  in  breadth,  broader  in 
/  front,  epimera  large  in  some  Calandridce,  small  in  other  genera  and  sub- 
families; hind  coxae  transverse,  oval,  not  attaining  the  side  of  the  abdo- 
men. 

Elytra  without  epipleurae,  exposing  the  pygidium  in  Calandridce,  cover- 
ing it  more  or  less  completelj^  in  the  other  subfamilies;  on  the  inner  surface 
the  elevated  fold  commences  near  the  base,  continues  parallel  and  close  to 
the  margin  as  far  as  the  posterior  curvature,  where  it  diverges  and  becomes 


LeConte.] 


CALAISTDKID^.  329 


obsolete.  The  space  between  the  ridge  and  the  margin  has  a  pearly  lustre, 
and  may  pvossibly  serve  as  a  stridulating  organ;  in  the  Consoniaa;  this  ridge 
diverges  much  less  and  becomes  obsolete  sooner. 

Abd(Mnen  with  five  ventral  segments,  of  which  the  first  and  second  are 
longer,  witli  the  suture  nearly  obliterated  at  the  middle  in  Calandrida;, 
but  deep  and  entire  in  Rhinidte;  in  Cossonidm  they  are  very  long,  and  the 
suture  is  effaced  at  the  middle;  the  third  and  fourth  segments  are  short,  and 
the  sutures  straight  and  deeply  impressed;  the  fifth  is  about  as  long  as  the 
third  and  fourth  united,  and  is  rounded  behind.  The  dorsal  segments  are 
membranous,  except  the  last,  or  pygidium,  which  is  large,  nearly  [lerpen- 
dicular  in  Calandridm,  obliquely  deflexed  in  the  other  subfamilies;  the 
anal  segment  of  the  (^  is  quadrate  and  retractile  in  Calandridm  and  BM- 
nid(P,  broader  and  less  retractile  in  Cossonidw,  but  not  continuous  with  the 
pygidium  as  in  GurcuUonidcB  and  Brenthida;the  lateral  edge  of  the  meta- 
thorax  and  of  the  ventral  segments  is  sharp  and  fits  into  the  lateral  groove 
of  the  i.iner  surfiice  of  the  elytra;  in  the  Cossonidw  this  edge  continues  on 
and  around  the  last  ventral,  thereby  showing  a  tendency  towards  the  modi- 
fication finally  perfected  in  the  Scoli/tidw,  and  of  which  we  have  already 
seen  trac>^s  in  the  Brenthido'. 

Legs  moderate,  varying  though  not  greatly,  according  to  genus;  thighs 
usually  stoutly  clavate,  not  toothed;  tibioe  rather  short,  strongly  unguicu- 
late  at  the  outer  angle.  Tarsi  frequently  narrow  and  not  brush  like  be- 
neath; third  joint  sometimes  bilobed,  (Bhinidce)  sometimes  broad  patellate, 
and  not  emarginate,  (certain  Splienophori);  claws  divergent,  simple. 

I  have  embraced  in  this  family  several  very  distinct  forms  which  agree 
with  Curculionidce  in  general  characters,  but  differ  in  having  the  genital 
segment  of  the  (^  not  articulated  directly  at  the  end  of  tlie  last  dorsal,  but 
either  retractile  or  concealed  under  it.  While  the  mouth  organs  of  the  Cos- 
sonidm  are  similar  to  those  of  ordinary  Curculiomdcv,  and  submit  to  modi- 
fications similar  to  those  of  Hylobiini  for  instance,  in  the  other  subfamilies 
there  are  specializations  which  do  not  otherwise  occur  among  Rhynchophora. 

With  regard  to  the  affinities  of  the  members  of  this  family,  it  may  be  said, 
in  general  terms,  that  the  Calandridce  show  an  alliance  with  the  Barini; 
the  Rhinidm  continue  the  specialization  still  farther,  and  have  not  a  direct 
resemblance  to  any  other  tribe.  The  Cossonidm  seem  to  be  a  connecting 
line  from  Hylobiini  to  Scolytidm,  to  which  they  approach  very  closely  in 
Rhyncolus. 

Three  subfamilies  occur  in  our  fauna,  the  characters  of  which  have  been 
sufficiently  indicated  above:  the  following  table  will  enable  them  to  be 
readily  distinguished. 

Buccal  cavity  elongate,  peduncle  of  mentum  elongate, 

narrow:  pygidium  exposed CALANDRIDA. 

Buccal  cavity  entirely  at  the  apex  of  the  beak;  py- 
gidium covered RHINIDJE. 

Buccal  cavity  normal,  peduncle  of  mentum  short,  oral 

organs  exposed;  pygidium  covered COSSONIDM. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  2p 


330  OALAI^DEID^.  [LeConte. 

Subfamily    I.     CALAISTDRID^. 

An  excellent  synopsis  of  the  species  of  this  subfamily,  as  represented  in 
our  fauna  is  given  by  Dr.  Horn  in  the  Proceedings  of  this  Society  for  1873, 
commencing  on  page  407.  I  have  but  a  few  new  species  of  Splienoplwrus 
to  add,  wluch  seem  scarcely  worth  describing  at  the  present  time.  I  shall 
therefore  confine  myself  to  giving  at  greater  length  my  views  on  the  sub- 
division of  the  subfamily  into  tribes  and  genera,  which  do  not  differ  essen- 
tially from  those  developed  by  Lacordaire,  and  followed  by  Horn. 

Side  pieces  of  metathorax  very  wide,  epimera 

hxrge RIIYAC'HOPIIORINI. 

Side  pieces  of  metatliorax  moderate,  or  narrow: 
Mesosthoracic  epimera  broadly  truncate  ex- 
ternally; club  of  antennae  wedge-sliaped.  spjhenophorini. 
Mesothoracic  epimera  acute  externally;  club 

of  antennoB  oval CAi.AN URINI 

Tribe  I.     rhyn^hophorim. 

The  species  of  this  tribe  are  of  large  size,  and  with  the  exception  of  Rhyn- 
chophorus,  have  the  mandibles  turned  outwards  as  in  the  Rhinidw;  in  the 
genus  just  mentioned,  the  mandibles  are  of  the  usual  pincer-form  with  three 
small  apical  teeth.  The  funicle  of  the  antennaj  consists  of  six  perfoliate 
joints,  strongly  constricted  at  tlie  outer  end;  the  club  is  transverse,  trape- 
zoidal, corneous,  with  the  terminal  face  flat,  spongy  and  sensitive. 

One  species,  R.  cruentatus,  represents  this  species  in  the  Southern  States. 
It  is  parasitic  on  Ckamcerops  palmetto.  In  consequence  of  the  extension  of 
the  mesothoracic  epimera  upwards,  the  humeral  portion  of  the  elytra  is 
truncated,  as  in  Barini.  The  third  joint  of  the  tarsi  is  but  little  wider  than 
the  second,  not  emarginate,  fringed  at  the  apical  margin  beneath.  In  the 
(^  the  tibiae,  and  to  a  less  extent  the  thighs  are  densely  fringed  with  long 
yellow  hair  on  the  inner  side:  In  the  9  the  hairs  are  much  less  dense.  The 
genital  segment  is  sometimes  protruded;  it  is  nearly  smooth,  and  finely 
channeled  above  in  both  sexes,  but  is  longer  and  narrower  in  the  9.  i'^ 
which  sex  also  the  pygidium  is  more  flattened,  and  more  obliquely  narrowed 
at  the  tip . 

Tribe  II.     SPHEXOPHORINI, 

The  species  of  this  tribe  are  rarely  large,  but  never  very  small.  The 
mandibles  are  always  pincer-shaped,  with  three  apical  teeth.  Tiie  meso- 
thoracic epimera  are  large,  and  truncate  at  tlie  outer  side,  so  that  the  out- 
line of  the  elytra  near  the  base  is  straight,  and  not  oblique  as  in  the  preced- 
ing tribe;  the  metathoracic  episterna  are  rather  narrow,  and  the  epimera 
small,  though  quite  obvious. 

Three  genera  have  been  observed  in  our  fauna. 

Spongy  portion  of  antennal  club  flat SOYPHOPHORUS. 

'•  "         "        "       convex 2. 


LeContc.] 


SPHENOPHORiiirr.  331 


2.  Anterior  cox«  widely  distant METAMASIUS. 

"          "     narrowly  separated 3. 

3.  Third  joint  of  tarsi  patellate,  spongy  surface 

not  divided CAOTOPHAGUS. 

Third  joint  of  tarsi  patellate,  spongy,  narrowly 

divided .'. RHODOB^NUS. 

Third  joint  of  tarsi  pilose  at  the  sides  or  glabrous.  SPHENOPHORUS. 

SOYPHOPHORUS  Sch. 

The  species  of  this  genus  are  parasitic  on  Tucca,  and  seem  to  me  rather 
opinionative  than  actual. 

1.  S.  acupunctatus  is  found  in  California,  Colorado,  and  Mexico;  it  is 
somewhat  shining,  with  the  prothorax  moderately  constricted  at  tip,  and  the 
lateral  punctures  elevated.  S.  iiiterstitialis  of  Cuba,  has  the  same  punctu- 
ation of  prothorax,  but  a  little  stronger,  and  the  apical  constriction  is  less 
marked;  the  lustre  is  more  dull.  S.  robustior  Horn,  from  Texas,  has  the 
form  oi^  prothorax  o(  acupunctatus,  but  the  punctures  are  coarser,  and  the 
lateral  ones  are  less  elevated;  the  lustre  is  also  dull  as  in  S.  interstitialis. 

2.  S.  yuccse  Horn,  from  California,  is  quite  distinct  by  the  more  de- 
pressed upper  surface,  and  the  single  rows  of  punctures  on  the  interspaces 
oif  the  elytra. 

METAMASIUS  Horn. 

M.  sericeus  Horn,  Pr.  Am.  Phil.  Soc.  1873,  410.  Calandra  sericea 
Latr.  Humb.  and  Bonpl.  Voyage,  v,  41,  Tab.  22,  f.  4;  Oliv.  83,  p.  84;  Tab. 
28,  f.  109;  Sphenophorus  set:  Gyll..  Sch.  Cure,  iv,  896. 

This  species  occurs  in  California  and  Arizona;  also  in  Cuba,  Mexico,  and 
S.  America,  as  far  as  Peru. 

SPHENOPHORUS  Sch. 

The  species  S.  IS-punctatus  and  validus  contained  in  Horn's  Group  ii, 
should  each  constitute  a  distinct  genus;  the  other  species,  in  which  the 
third  joint  of  the  tarsi  is  not  spongy  beneath,  but  merely  pilose,  sometimes 
broad,  sometimes  narrow,  might  be  regarded  as  constituting  but  one  genus. 

CACTOPHAGUS    n.  g. 

I  would  separate  as  a  distinct  genus- a  species  of  large  size,  and  dull  vel- 
vety black  color,  which  differs  from  Sphenophorus,  by  the  absencfc  of  in- 
equalities or  coarse  sculpture,  and  by  the  third  joint  of  the  tarsi  being  some- 
what transverse,  and  uniformly  densely  spongy  beneath;  the  first  and  sec- 
ond joints  are  narrow,  and  glabrous  beneath.  The  tibise  are  slender,  not  sin- 
uate, and  the  outer  part  of  the  tip  is  regularly  rounded,  not  at  all  truncate, 
or  angulated.  The  gu'ar  peduncle,  though  deeply  channeled,  is  regularly 
rounded  at  the  end,  not  abruptly  subtruncate  as  in  Sphenophorus;  whereby 
the  beak  remains  cylindrical,  and  is  not  at  all  compressed  at  tip. 


332  CALANDRID^.  [LeConte. 

1.  C.  validus.  tSpJienophorus  val.  Lee,  Pr.  Ac.  Nat.  Sc.  Phila.  1858, 
80;  Horn,  Pr.  Am.  Phil.  Soc.  1873,  415;  S.  procerus  Lee,  Pr.  Ac.  1858,  80. 

California,  from  San  Diego  to  Cape  San  Lucas;  Arizona,  Mexico.  The 
synonym  belongs  to  a  form  in  which  the  apical  constriction  of  the  protho- 
rax  is  less  obvious;  this  variation  serves  to  confirm  the  opinion  above  ex- 
pressed regarding  the  species  of  Scypliophorus.  The  specimens  were  found 
exclusively  under  decaying  Opuntia  leaves. 

RHODOB^NUS   u.  g. 

I  would  also  separate  as  distinct  the  usually  red  species  with  black  spots, 
whicli  agree  with  Cactophagus  in  the  form  of  the  gular  peduncle,  but  differ 
in  tlie  tibiic  subtruncate  at  the  tip,  with  the  outer  angle  obtuse,  but  distinct, 
the  third  joint  of  tlie  tarsi  is  equally  broad  and  spongy  beneath,  but  the 
brush  is  divided  by  a  narrow  line;  the  first  joint  is  liairy  at  the  tips,  while 
the  second  is  densely  hairy,  with  a  narrow  median  line.  The  elevations 
above  the  insertion  of  the  antenna?  are  much  stronger,  and  the  scape  of  the 
latter  comparatively  longer.  The  mesosternum  is  also  narrower  than  the 
other  genera.  The  species  are  found  on  flowers,  mostly  rose-bushes;  but 
two  are  Ivnown  to  me  in  our  fauna;  the  first  is  red,  with  black  spots;  the 
second  brown,  irrorate  with  grayish  round  spots,  which  surround  the  punc- 
tures. 

1.  S.  tredecimpunctatus.  Curadio  tred.  Illiger,  Schneider's  Mag. 
V,  613;  for  synonymy  see  Horn,  1.  c.  414. 

Atlantic  district,  to  Colorado,  also  in  Mexico,  and  South  America. 

2.  S.  pustulosus  Gyll.,  Sch.  Cure,  iv,  923;  Horn,  1.  c.  415. 
Arizona;  also  in  Mexico. 

Tribe  IIL     CAi:.AX»ni3fI. 

This  tribe  consists  of  small  species,  in  which  the  mandibles  are  i>incer- 
shaped,  and  not  everted;  the  club  of  the  antennie  not  compressed,  and  the 
mesothoracic  epimera  transverse,  acute  at  the  outer  end,  and  intervening 
between  the  humeral  part  of  the  elytra  and  the  base  of  the  prothorax.  The 
anterior  part  of  the  last  dorsal  segment  of  the  abdomen  is  channeled  for  the 
reception  of  the  sutural  edge  of  the  elj^tra,  almost  as  in  Aiithribidie.  This 
is  a  very  peculiar  character,  and  I  find  no  traca  of  it  in  the  other  genera  in 
our  fauna. 

OALANDRA  Clauv. 

This  genus  differs  from  tlie  others  contained  in  the  tribe,  but  not  repre- 
sented in  our  fauna,  by  tlie  antennal  club  being  oval,  the  corneous  part  sep- 
arated from  the  sensitive  part  by  a  transverse  line;  the  sensitive  part  being 
convex,  and  somewhat  pointed.  The  body  is  narrow,  and  elongate,  quite 
different  to  that  observed  in  the  genera  of  the  two  preceding  tribes,  rather 
resembling  lihina  in  miniature. 

Three  species  occur  in  our  fauna;  they  have  been  distributed  in  the  ce- 
real grains  upon  which  they  depredate,  so  tliat  their  original  habitat  cannot 


LeConte.] 


CALAJJ^DRINI.  338 


be  known  with  certainty.  Dr.  Horn  mentions  that  from  time  to  time  o'her 
species  have  been  introduced  b}^  ships  from  tropical  ports,  but  fortuiiately 
they  have  not  yet  become  naturalized. 

1.  C  oryzae  Fabr.,  Syst.  El.  ii,  438,  &c. ;  Horn,  1.  c.  430;  Curculio  ory- 
zcB  Linn.  Amo^n.  Acad,  vi,  395,  &c. ;  Ehynchophorus  oryzce  Herbst,  Kiifer, 
vi,  18,  Tab.  60,  f.  9;  Sitophilus  oryzie  Gyll.,  Sch.  Cure,  iv,  981,  (cum  sy- 
non.  and  bibliographia). 

Found  in  every  part  of  the  globe;  universally  distributed  by  commerce, 
and  said  to  have  been  originally  derived  from  Asia;  it  affects  rice,  wheat, 
and  Indian  corn  (maize).  The  surface  is  dull,  and  the  prothorax  densely 
punctured;  the  elj^tra  are  usually  ornamented  with  four  red  spots,  but  are 
some'iimes  red,  with  the  suture,  side  margin  and  tip  darker. 

2.  O.  reraotepunctata  Horn,  Fr.  Am.  Phil.  Soc  1873,  430;  Sitophilus 
rem.  Gyll.,  Sch.  Cure,  iv,  979. 

Atlantic  district,  extending  into  Arizona.  The  surface  is  somewhat  shi- 
ning, and  the  prothorax  is  more  coarsely  and  less  densely  punctured. 

3.  C.  granaria  Fabr.,  Syst.  El.  ii,  437;  Oliv.,  83,  p.  95;  Tab.  1(5,  f.  196, 
«&c. ;  Curculio  granarius  Linn.,  Fn.  Suec.  587;  Syst.  Nat.  12th,  ii,  608, 
&c. ;  Sitophilus  granarius  GyW.,  Sch.  Cure,  iv,  977,  cum  synon.  plur. 

Missouri,  depredating  on  wheat;  C  V.  Riley.  Very  similar  to  the  pre- 
ceding, but  the  punctures  of  the  prothorax  are  smaller,  and  the  striae  of  the 
elytra  much  finer  and  less  coarsely  punctured. 

Subfamily   IL     RHINID^. 

This  subfamily  corresponds  nearly  if  not  exactly  with  Lacordaire's  tribe 
Sipalides,  and  the  essential  differences  between  it  and  the  Calandricke  are 
in  the  position  of  the  buccal  opening  which  is  entirely  at  the  end  of  the 
beak,  not  extending  upon  the  under  surface;  the  pygidium  is  not  large  and 
perpendicularly  declivous  as  in  the  last  subfamily,  but  covered  by  the  ely- 
tra, which  are  conjointly  rounded  at  tip;  another  character  also  separates 
it  from  Calandridm  (though  not  from  Lacordaire's  tribes  Stromboscerides, 
and  Oxyrhynchides,  which  are  not  represented  in  our  fiiuna,  and  are  un- 
known to  me  in  nature) ;  the  eyes  are  strongly  granulated,  very  large,  and 
confluent  on  the  under  surface  of  the  head. 

In  nearly  all  the  genera  mentioned  by  Lacordaire,  the  mandibles  are  con- 
vex on  the  inner  face,  and  the  apical  teeth  are  everted,  though  this  is  pro- 
bably a  group  or  generic  character  as  in  certain  tribes  of  Calandridce.  The 
club  of  the  antennae  varies  in  form  according  to  genus,  and  is  not  annulated. 
The  tarsi  also  vary,  the  third  joint  being  narrow  in  some  genera,  wide  and 
bilobed  in  others. 

But  one  representative  occurs  in  our  fauna,  which  indicates  a  new  genus; 
allied  to  Ehina  and  Harpiacterus- 

YUCCABORUS  n.  g. 
The  body  is  elongate,  glabrous,  subcylindrical,  resembling  in  appearance 
a  gigantic  Cossonide;  the  beak  is  straight,  as  long  as  the  prothorax,  usually 


334  CALANDEID^.  [LeConte. 

flexed  perpendicularly  downwards;  sculptured  beneath  with  three  longitu- 
dinal grooves;  antennal  grooves  very  short;  eyes  transverse,  coarsely  granu- 
lated, contiguous  beneath,  but  widelj-  distant  above,  and  not  extending  to 
the  upper  surface  of  the  cranium.  Antennse  with  scape  reaching  the  eyes; 
fuuicle  6-jointed,  longer  than  the  scape;  club  elongate-oval,  as  long  as  the 
four  preceding  joints;  spongy  part  as  large  as  the  corneous  part,  and  sepa- 
rated from  it  by  angulated  lines,  so  as  to  extend  farther  upon  the  sides  than 
upon  the  faces  of  the  club,  which  is  slightly  compressed. 

Pro'.horax  longer  than  wide,  rounded  on  the  sides,  a  little  narrower  at  tip 
than  at  base,  and  constricted;  truncate  before  and  behind.  Scutellum  small, 
rounded.  Elytra  with  shallow  punctured  striae,  interspaces  wide,  sparsely 
punctured;  conjointly  rounded  at  tip,  pygidium  slightly  prominent.  Legs 
slender,  thighs  not  clavate,  tibi*  subsinuate  on  the  inner  side,  and  feebly 
serrate;  especially  the  front  pair;  outer  angle  obtuse,  indistinct,  inner  angle 
strongly  unguiculate;  tarsi  slender;  third  joint  a  little  wider,  bilobed,  not 
spongy  beneath,  but  smooth  and  glabrous  like  the  others. 

This  genus  differs  from  the  two  above  named  by  the  form  of  the  antennal 
club,  by  the  eyes  being  widely  distant  above,  and  by  the  third  tarsal  joint 
much  smaller,  not  spongy  beneath. 

1.  Y.  frontalis.    Rhina  frontalis  Lee,  Trans.  Am.  Ent.  Soc  1874,  70. 

Mojave  Desert,  Cal.;  under  bark  of  Yucca;  G.  R.  Crotch.  Length  8- 
11  mm.;  .32-45  inch.  I  expressed  my  opinion  when  describing  this 
species,  that  it  might  indicate  a  distinct  genus;  but  my  knowledge  oi  EJiyn- 
chophora  at  that  time  was  not  suflicient  to  enable  me  to  properly  define  it. 

Subfamily   IIL     COSSONLD^. 

The  abnormal  form  of  mouth  seen  in  the  twb  preceding  subfamilies  is 
here  replaced  by  the  ordinary  buccal  cavity  and  mouth  organs  seen  in 
Curculionidm.  The  gular  peduncle  is  rather  broad,  not  very  long,  the 
mentum  and  ligula  with  its  paljii  are  distinct,  and  moderately  large,  and 
the  maxilUt  and  palpi  are  well  developed.  The  beak  varies  greatly,  being 
sometimes  rather  long,  and  moderately  slender,  sometimes  so  short  and 
stout  as  to  become  indistinct.  The  antenna  are  inserted  at  a  variable  dis- 
tance, being  sometimes  basal,  sometimes  nearly  apical;  the  scape  generally 
extends  beyond  the  eyes;  the  funicle  has  from  four  to  seven  joins;  the  club 
is  small,  oval,  partly  corneous  in  some  genera,  and  but  feebly  annulated. 
The  front  coxae  are  sometimes  widely  separated,  sometimes  almost  contigu- 
ous. The  thighs  are  unarmed,  and  the  tibiaj  are  armed  in  our  genera  with 
a  long  curved  spine  at  the  inner  apical  angle;  the  tarsi  are  variable,  the 
third  joint  is  usually  not  broader;  in  one  genus,  Drt/opJithorua,  by  an  ex- 
ception otherwise  unknown  in  the  f\imily,  and  repeated  again  only  in  Platy- 
pus and  some  other  genera  among  the  Scolytidm,  the  tarsi  are  disti;ictly 
5-jointed. 

Neglecting  the  number  of  joints  in  the  funicle  of  the  antennae  as  being 
rather  of  generic  than  tribal  value,  I  would  divide  the  few  genera  repre- 
sented in  our  fauna  as  follows: 


LeConte.J 


DRYOPllTHORINI.  335 


Beak  long,  not  dilated  at  tip;  body  uneven,  cov- 
ered with  a  crust DRYOPHTHORINI. 

Beak  long,  or  moderate,  usually  dilated  at  the 
end,  with  rapidly  descending  antennal  grooves, 
front  coxae  distant,  body  soniL'tinies  depressed..  COSSONINI. 

Beak  usually  short,  always  continuous  with  the 
front,  and  equally  stout;  front  coxa?  approxi- 
mate ;  body  cylindrical RHYNCOLINI. 

Tribe  I.      l>RYOPHTHOKINI. 

I  have  associated  with  DryoplUhorui<  two  other  genera  which  have  but 
little  in  common  with  it  or  with  each  other,  except  the  following  characters, 
by  which  they  differ  from  other  Cossonidce,  and  approach  other  groups  of 
RhyncJioplwra.  The  beak  is  longer  than  the  head,  not  vory  stout,  cylin- 
drical, not  di'ated  at  tip,  and  the  buccal  cavity  is  smaller;  the  gular  i)edun- 
cle  and  mentum  are  smaller  and  narrower  than  in  the  other  tribes.  The 
tibiae  are  slender,  not  at  all  dilated,  and  the  terminal  hook  is  long.  The 
body  is  coarsely  sculptured,  and  covered  with  a  dirt-colored  crust. 

Two  groups  are  indicated  by  the  three  genera  before  me. 

Metasternum  long;  funicle  4-jointed Dryophthori. 

Metasternum  long  or  short;  funicle  5-7  jointed Dryotribi. 

Group    I.      Wryophthorl. 

A  single  small  species,  represents  this  group  in  our  fauna.  It  resembles 
in  form  Calandra,  rather  than  any  genus  of  Cossonidie  known  to  me.  The 
antennal  club  is  rounded,  oval,  corneous,  except  the  tip,  which  is  spongy 
and  not  annulated;  the  joints  of  the  funicle  are  only  four,  while  those  of  the 
tarsi  are  distinctly  five,  though  in  the  South  European  Clufrorlilnui^,  ac- 
cording to  description,  this  anomaly  disappears,  and  the  tarsi  are  4-jointed. 
The  metasternum  is  long  and  the  side  pieces  are  narrow;  the  first,  second 
and  fifth  ventral  segments  are  very  large;  third  and  fourth  excessively 
short,  shorter  in  fact  than  in  any  other  genus  I  have  examined.  The 
antennae  are  inserted  very  near  the  eyes,  which  are  coarsely  granulated  and 
transverse. 

DRYOPHTHORUS  Sch. 

1.  D.  corticalis  Say,  Cure.  24;  ed.  Lee.  i,  293;  Boh.,  Sch.  Cure,  iv,  1089; 
Horn,  Pr.  Am.  Phil.  Soc.  1873,  481. 

Atlantic  district  generally;  found  under  bark.  Boheman  mentions  the 
occurrence  in  California  of  D.  bitu.berc%latm,  which  is  widely  distiibuted 
over  the  islands  of  the  South  Pacific;  Sandwich  Islands  and  New  Zealand. 
Its  extension  to  California  is  doubtful. 

Group  Dryotrlbl. 

Two  species  of  very  remarkable  genera  are  here  represented;  the  first 
bears  some  resemblance  to  Dryophthorus.,  and  in  the  arrangement  of  Wol- 


336  CALAT^TDEID^. 


[LeConte. 


laston*  would  be  placed  in  the  first  group  of  his  Pentarthrldes.  The  second 
genus  would  probably  go  near  Lymantes,  which  is  thus  far  unknown  to  us, 
and  may  perhaps  have  some  relation  to  the  European  Styphloderes. 

BesiuL'S  the  moie  slender  beak,  and  the  crusty  covering,  these  iiisects  dif- 
fer from  those  of  the  following  two  tribes  by  the  head  being  rather  peculiarly 
constricted  behind  the  eyes,  which  are  small,  rounded  and  very  coarsely 
granulated;  the  result  of  this  form  of  head  is  that  the  eyes  are  situated  on 
the  beak,  instead  of  at  the  sides  of  the  cranium  proper.  The  scutellum  is 
not  visible  in  either  of  our  genera,  and  I  am  inclined  to  believe  that  this 
will  be  found  a  character  of  the  group,  permitting  tlie  association  of  forms 
now  widely  separated. 

Antennae  with  5-jointed  funicle DRYOTRIBUS. 

"    7-jointed         " GONONOTUS. 

DRYOTRIBUS  Horn. 

1.  D.  mimeticus  Horn,  Pr.  Am.  Phil.  Soc.  1873,  433. 

Key  West,  Florida,  February;  Mr.  Burgess.  The  eyes  are  nearly  round, 
and  composed,  as  observed  by  Dr.  Horn,  of  about  twenty  lenses;  the  con- 
striction is  about  halfway  between  the  eyes  and  the  apex  of  the  prothorax. 
The  scape  of  the  antennae  extends  to  the  hind  margin  of  the  eye. 

GONONOTUS  n.  g. 

Beak  rather  slender,  as  long  as  the  prothorax,  moderately  curved,  very 
coarsely  sculptured,  separated  from  the  head  by  a  transverse  constriction 
immediately  behind  the  eyes,  which  are  small,  convex,  prominent,  and 
composed  of  about  thirty  to  thirty-five  lenses.  Antennse  inserted  about 
one  third  from  the  end  of  the  beak,  scape  slender,  extending  to  the  eyes, 
funicle  7-jointed,  longer  than  the  scape,  rather  slender,  first  joint  longer 
and  stouter;  club  small,  oval,  rather  shining,  thinly  pubescent,  annulated 
on  the  outer  half;  antennal  grooves  lateral,  deep,  extending  to  the  lower 
margin  of  the  eyes.  Head  small,  very  short.  Prothorax  about  as  long  as 
wide,  uneven,  coarsely  sculptured,  sides  bisinuate  and  suddenly  constricted 
far  from  the  tip,  thus  causing  two  lateral  protuberances,  one  near  the  base, 
and  another  more  prominent  in  front  of  the  middle.  Elytra  elongate-oval, 
a  little  wider  than  the  prothorax,  subcostate,  with  intervening  shallow 
grooves,  costiE  with  rows  of  extremely  short  and  indistinct  hairs.  Proster- 
num  narrow,  front  coxse  narrowly  separated,  middle  coxte  moderately  sepa- 
rated, hind  coxae  very  widely  separated.  Mesosternum  short,  side  pieces 
narrow.  First,  second  and  fifth  ventral  segments  long,  third  and  fourth 
united  about  equal  to  the  fifth,  first  suture  obliterated  in  great  part.  Legs 
slender,  rather  long,  thighs  slightly  clavate,  terminal  hook  of  tibiae  smaller 
than  usual  in  this  sub-family;  tarsi  short,  rather  stout,  third  joint  broader, 
bilobed  and  hairy  beneath;  last  joint  more  thickened  at  tip  than  usual, 
claws  small,  divergent. 

*  Genera  of  tlie  Cossonidce :  Trans.  Ent.  Soc.  London,  1873,  p.  434. 


LoContc] 


cx)3S()xrxr.  337 


1.  Gr.  lutosus,  n.  sp. 

Dull  pitclij'  black,  Avitliout  lustre,  and  clothed  with  a  thin  crust  of  dark 
color.  Head  and  beak  very  coarsely  rugoselj'  punctured.  Prothora.'c 
coarsely  granulate,  each  granule  -with  a  central  puncture;  disc  with  two 
broad  shallow  grooves,  or  rather  with  three  fine  but  not  prominent  carin;E. 
Elytra  with  shallow  cribrate  grooves,  interspaces  narrow,  carinate,  alter- 
nately a  little  more  elevated.  Benea'h  very  coarsely  punctured;  antenna 
testaceous.     Length  2.5  mm. ;   .10  inch. 

Haulover,  Florida,  March  16th;  Messrs.  Hubbard  and  Sc'iwarz.  A  very 
singular  insect,  of  which  I  hope  more  specimens  may  be  obtained  than  the 
single  one  I  have  examined. 

Tribe  II.     COSSOXINI. 

I  would  associate  as  a  dis'.inct  tribe  certain  other  genera,  which  have  not 
the  bodj^  covered  with  a  crust,  but  s'lining  and  bare;  some  of  the  foreign 
genera  are  more  or  less  setose,  but  ours  are  glabrous. 

The  beak  is  never  very  short,  and  is  frequently  dilated  at  tip;  the  anten- 
nas are  inserted  near  the  tip,  or  at  the  middle;  the  antennal  gi'ooves  fre- 
quently descend  rapidly  on  the  sides  of  the  beak,  and  sometimes  are  di- 
rected towards  the  eyes,  but  the  antennae  are  not  received  in  ix'pose  in  a 
deep  transverse  gular  groove  as  in  the  next  tribe.  The  club  varies  in  form, 
and  in  our  genera  the  funicle  is  7-jointed;  whether  any  of  the  genera  ot 
other  countries,  with  less  number  of  joints  in  the  funicle,  belong  to  the 
tribe  as  here  constituted,  must  be  determined  by  subsequent  investigations. 

The  arrangement  here  proposed  differs  radically  from  that  offered  hj  Mr. 
WoUaston,  and,  if  found  in  accordance  with  natural  atlinities,  will  result  in 
a  great  reduction  of  the  number  of  genera. 

The  genera  I  recognize  in  our  fauna  are  as  follows: 
Body  not  depressed,  beak  not  dilated  at  tip. .  2. 

Body  very  depressed,  beak  not  dilated  at  tip,  HOMALOXENUS. 

Body  depressed,  beak  dilated  at  tip;  antennae 

inserted  near  the  tip,   grooves  descending 

rapidly COSSONUS. 

2.  Antennae  i^iserted  near  the  middle  of  the 

beak 3. 

Antennae  inserted  near  the  tip  of  the  beak; 

funicle  stout,  club  moderately  small. . .  MACRORHYNCOLUS. 
Antennae  inserted  near  the  base  of  the  beak, 

body  very  narrow M AGR ANC YLUS . 

3.  Antennal  grooves  descending  obliquely,  4- 

"               "        directed    towards   the 
eyes ALLOMIMUS 

4.  Body  pale,  very  elongate;  funicle  slender, 

club  large STENOMIMUS. 

Body  black,  less  elongate:  funicle  gradu- 
ally stouter,  club  large C AULOPHILUS. 

Body  black,  less  elongate,  funicle  very 

stout,  club  small MESITES. 

TROC.   AMER.  TUILOS.  SOC.  XV.  i)f).  2ci 


>38  CALAXDPJD.E. 


HOMALOXENUS  Wollaston. 


[LeConte. 


H.  dentipes  Woll.,  Tr.  Ent.  Soc.  London,  1873,  615. 

Florida:  a  single  specimen,  collected  and  kindly  given  to  me  by  Baron 
R.  Osten  Sacken,  agrees  so  perfectly  with  the  description  of  Mr.  Wollas- 
ton  of  his  specimen  from  S.  Domingo,  that  I  am  not  warranted  in  consid- 
ering it  as  distinct.  The  only  difference  seems  to  be  that  in  my  specimen 
the  thighs,  though  very  thick,  are.  hardly  perceptibly  toothed;  this  charac- 
ter may,  however,  be  sexual.  The  insect  will  be  easily  recognized  1)y 
the  ver}'  depressed  form,  brown  color,  with  dull  lustre;  very  slender  beak, 
as  long  as  the  prothorax;  slender  antennae;  scarcely  mucronate  tibi*,  and 
very  widely  dilated  and  bilobed  third  tarsal  joint;  characters  of  rare  occur- 
rence in  the  present  sub-family,  but  combined  with  a  general  appearance 
which  renders  the  affinities  with  this  tribe  unmistakable. 

COSSONUS  Clairv.  (emend.  Wollaston.) 

To  this  genus,  as  now  restricted,  belong  the  eight  species  comprised  in 
group  A,  Horn,  Pr.  Am.  Phil.  Soc.  437.  An  excellent  table  of  differences, 
also  the  bibliography  and  full  descriptions  are  there  given  The  funicle  of 
the  antennie  becomes  gradually  stouter,  and  the  dilatations  of  the  apex  of 
the  beak  less  evident  from  the  first  species  (platnlea),  to  the  eighth  (m- 
pressifrons),  thus  establishing  an  imperceptible  transition  to  Boropldmus 
Woll.  So  far  as  I  may  judge  without  comparison  of  specimens,  I  do  not 
see  why  B.  minor  Woll.  Trans.  Ent.  Soc.  London,  1873,  627,  may  not  be 
referred  to  the  species  determined  by  Horn  as  C.  corticola  Say. 

MAORORHYNCOLUS  Wollaston. 

To  this  genus  I  refer  the  Californian  Bhi/ncolus  protractus  Horn,  Pr. 
Am.  Phil.  Soc.  1873,  444,  which  differs  from  the  true  Khyncoli,  not  onh^ 
as  slated  by  Horn,  in  the  widely  separated  front  coxse  and  linear  form,  but 
by  the  Iftnger  cylind»cal  b«ak,-whrch  is  qnitetHstinctly  separated  from  the 
head.     The  third  joint  of  the  tarsi  is  narrow  and  fie))ly  bilobed. 

MACRANCYLUS  n.  g. 

The  number  of  genera  in  this  tribe  has  been  increased  to  such  an  extent 
as  to  render  them  extremely  difficult  to  recognize.  I  am  quite  unwilling  to 
add  to  the  names  already  published,  until  an  attempt  has  been  made  to 
combine  them  into  larger  groups.  It  is  for  this  reason  that  I  regret  to  pro- 
pose this  genus  for  an  extremely  slender  but  cylindrical  (not  depressed) 
species,  which  has  the  beak  stout,  not  separated  from  the  front,  gradually 
but  slightly  tapering  externally.  The  antennal  grooves  commence  about 
the  middle  of  the  beak,  and  the  dhtt'nhae  are  inserted  behind  the  middle; 
the  scape  is  long,  extending  to  the  back  part  of  the  eyes,  and  is  rather  sud- 
denly bent  amUlliicl^e^qiJiifHijn  the  middle  to  the  tip;  the  funicle  is  moder- 
!\,tely  stout,  the  first  joint  larger 'and  thicker;  the  remaining  joints  short, 
closely  united,  gradually  but  very  slightly  broader;  club  oval,  pointed, 
rather  small,  distinctly  annulated  in  the  outer  half.     The  antennal  grooves 


LeConte. 


cossoNixi.  339 


ure  deep  and  directed  against  the  ej-es,  which  are  round,  moderate  in  size, 
and  finely  granulated.  The  front  cox*  are  widely  separated;  the  tibia; 
gradually  dilated  and  the  front  pair  are  pubescent  towards  the  tip;  a  dis- 
tinct spine  is  seen  at  the  inner  apical  angle;  terminal  hook  long;  tarsi  with 
rather  broad  joints,  third  a  little  widei",  feebly  bilobed,  last  joint  longer 
than  the  others  united;  claws  large,  divergent.  Scutellum  distinct,  elytra 
with  punctured  strife,  which  are  deeply  impressed  near  the  tip. 

1.  M.  linearis,  n.  sp. 

Very  elongate,  cylindrical,  piceous  or  brown,  shining,  glabrous;  head  and 
beak  finely  punctured.  Prothorax  more  than  one-half  longer  than  wide, 
more  strongly  but  not  densely  punctured,  without  impressions;  slightly 
narrowed  in  front,  sides  rounded  near  the  base.  Elytra  not  wider  than 
prothorax,  strise  composed  of  approximate  punctures,  deeply  exarate  on 
the  posterior  declivity  for  a  short  distance.  Beneath  distinctly  but  finely 
punctured  ;  flanks  of  prothorax  feebly  concave  in  front.  Antennae  and 
legs  reddish  brown.     Length  3  mm.;  .12  inch. 

Haulover;  Florida,  March:  Messrs.  Hubbard  and  Schwarz;  abundant  on 
the  sea  shore;  no  sexual  diflerences  observed.  The  fifth  ventral  segment 
is  longer  than  the  third  and  fourth  united;  the  three  together  are  scarcely 
longer  than  the  first  and  second;  the  first  ventral  suture  is  obliterated,  even 
at  the  sides. 

ALLOMIMUS  n.  g. 

I  cannot  refer  C'ossonus  duMuH  Horn,  1.  c.  442,  to  any  of  the  genera 
described  by  Wollaston.  It  is  nearly  allied  to  Macrancyclus,  but  is  of  less 
elongate  form,  and  very  much  more  coarsely  sculptured;  the  elytra  are  in 
fact  rather  sulcate  than  striate,  though  the  deep  strije  are  coarsely  punc-. 
tured,  and  the  interspaces  narrow  with  single  rows  of  small  punctures. 
The  beak  is  stout,  cylindrical,  a  little  narrower  than  the  head,  and  nearly 
as  long  as  the  prothorax;  the  antennal  grooves  commence  in  front  of  the 
middle,  and  run  directly  towards  the  eyes,  which  are  small,  rounded, 
moderately  convex  and  not  very  finely  granulated;  the  antennte  are  not 
very  stout,  the  scape  straight,  strongly  clavate,  extending  to  the  front  mar- 
gin of  the  eyes;  funicle  7-jointed,  first  joint  a  Httle  larger  and  stouter, 
remaining  joints  short,  closely  united,  gradually  but  slightly  broader,  club 
large,  oval-pointed,  pubescent,  annulated.  Scutellum  distinct.  Front 
coxae  widely  separated;  thighs  rather  stout,  tibiae  dilated,  with  a  small  spine 
at  the  inner  angle;  terminal  hook  long;  tarsi  with  the  third  joint  a  little 
wider,  and  feebly  bilobed;  last  joint  long,  with  divergent  claws. 

1.  A.  dubius  Horn.  1.  c.  442  (Cossonus). 

I  have  seen  but  one  specimen  from  Illinois;  it  is  easily  known  by  the 
characters  given  above,  and  by  the  very  coarse  sculpture.  Length  1.75 
mm. ;  .07  inch. 

STENOMIMUS  Woll. 

I  think  that  Phlaophaguit pulUduK  Boh.,  Sch.  Cure,  viii,  2d,  279;  Cossonus 
pall.  Horn.  Proc.  Am.  Phil.  Soc.  1873,  441,  may  properly  be  referred  to  this 


340  CALAXDKTDiE. 


[LeConte. 


genus,  the  characters  of  which  are  set  forth  by  Wolhvston,  Trans.  Ent.  Soc. 
London,  1878,  480.  It  is  easily  recognized  by  the  pale  color,  very  small 
size  and  narrow  form.     Souihern  States. 

OAULOPHILUS  Woll. 

1.  C.  latinasus.  Bhyncolus  lat-  Say,  Cure.  30,  ed.  Lee.  i,  299;  Boh.,  Sch. 
Cure,  iv,  1068  ;  Cossonus  pinguis  Horn,  Pr.  Am.  Phil.  Soc.  1873,  442. 

Southern  States  :  the  synonymy  is  on  the  authority  of  Dr.  Horn,  from 
specimens  in  the  collection  of  Mr.  Chevrolat.  The  reference  to  the  genus 
is  made  after  a  careful  study  of  the  characters  given  by  Wollaston,  Ins. 
Maderensia,  315,  pi.  vi,  f.  4;  Trans.  Ent.  Soc.  London,  series  2d,  v,  368, 
supplemented  by  the  descriptions  in  the  same  work,  1873,  499  and  586. 
Except  that  the  punctuation  of  the  prothorax  is  coarser  in  the  figure  than 
in  the  three  specimens  in  my  collection,  I  should  not  venture  to  declare 
them  as  a  different  species  from  C.  sculphoratus. 

MESITES  Sch. 

1.  M.  subcylindricus  (Horn),  Pr.  Am.  Phil.  Soc.  1873,441,  (Cossonw.s), 
One  rj^  found  by  me  on  the  sea  shore  near  Cape  Henlopen,  Delaware. 

This  is  the  largest  Cossonide  known  in  our  fauna,  being  6.5  mm.;  .26 

.inch  long. 

Tribe  III.     rhyncol,ISI. 

The  genera  of  this  tribe  while  differing  from  those  of  the  Cossonini  only 
by  having  the  prosternum  very  narrow  between  the  coxae,  and  by  having  a 
deep  transverse  gular  groove  beneath  in  front  of  the  eyes,  exhibit  other 
characters  which  show  a  strong  approximation  to  the  Bcolytidm;  thus  the 
number  of  joints  in  the  funicle  of  the  antennae  varies  so  as  to  be  barely  of 
generic  value  ;  the  beak  becomes  very  much  shortened,  and  the  head 
comparatively  larger,  as  in  Sienoscelis ;  the  form  of  the  club  varies, 
becoming  wedge  shaped,  truncate  and  spongy  at  tip  in  Wollaatonta,  thus 
recalling  the  form  seen  in  BhyncJiophoms,  &c.  ;  quite  rounded  or  perhaps 
a  little  transverse  in  Sienoscelis.  The  form  is  also  that  of  certain  Scolytidrp. 
Bhyncolus  resembles  closely  one  section  of  Tlylastes,  while  Sienoscelis  has 
altogether  the  appearance  of  Hylurgops  (H.  rugipennis,  &c.). 

As  in  the  Rhynchophora,  from  the  nearlj^  perfect  representation  of  past 
and  present  forms,  there  are  almost  always  intermediate  genera  to  be 
found,  I  would  say  that  PhlceopMgus  seems  to  be  one  of  such  interme- 
diates, and  would  be  in  place  in  the  preceding  tribe,  if  I  did  not  regard  the 
approximate  front  coxsb  as  having  greater  systematic  valrie  than  the  longer 
beak  and  the  weaker  gular  groove. 

The  antennal  grooves  always  commence  near  the  tip  of  the  beak  and 
descend  obliquely  below  the  eyes. 

Our  genera  may  be  separated  as  follows  : 


LeConte.] 


SCOLYTID.E.  341 


Beak  thick,  neither  dilated  at  tip,  nor  cylin- 
drical, slightly  narrowed  from   the   base 

to  the  tip,  convex 2. 

Beak  very  short,  parallel  on  the  sides 4. 

"     longer,  gula  only  feebly  concave  trans- 
versely   PHLCEOPHAGUS. 

2.  Club  rounded,  pubescent,  feebly  annulated  3. 
Club   corneous,    truncate    at   tip,    which    is 

spongy ;  funicle  5-jointed "WOLL ASTONI A. 

3.  Funicle  5  jointed AM AURORHINUS. 

"      6-jointed HEXARTHRUM. 

"      7-jointed  ELASSOPTES. 

4.  Tarsi  dilated,  antennal  grooves  long RHYNCOLUS. 

"     narrow,  antennal  grooves  very  short. .  STENOSCELIS. 

The  genera  and  species  are  fully  described  by  Dr.  Horn  in  the  memoir 
above  cited,  and  need  no  farther  mention  at  present. 

Family  IX.    SCOLYTIDaE. 

Mentum  moderate  in  size,  varjMng  in  form  in  some  genera  according  to 
sex;  without  gular  peduncle  (except  in  Hylastes,  where  it  is  very  small)  ; 
ligula  and  palpi  small,  the  former  sometimes  retracted,  sometimes  promi- 
nent. 

MaxilUie  exposed,  palpi  stout  and  short. 

Mandibles  stout,  curved,  more  or  less  toothed  on  the  inner  side. 

Antennai  inserted  on  the  sides  of  the  head,  batween  the  eyes  and  mandi- 
bles ;  composed  mostly  of  scape  and  club,  funicle  usually  very  short,  from 
1-  to  7-jointed;  club  large,  solid,  annulated,  or  i-arely  (Phlmotribus)  lamel- 
lated;  surface  of  the  club  more  or  less  sensitive  according  to  genus. 

Head  prominent  in  some  tribes,  detiexed  and  protected  by  the  prothorax 
in  others;  eyes  usually  large  and  transverse;  beak  never  long,  frequently 
so  short  as  to  be  not  apparent.  Labruni  feebly  developed,  sometimes  visible. 

Prothorax  truncate  in  front,  exposing  the  head,  {Platypodidce,  Scolytini 
and  Hylurgini),  or  prominent,  convex  and  rounded  (most  Tomicini);  lat- 
eral edge  not  dis'.inct,*  and  prosternal  sutures  obliterated;  flanks  excavated 
for  the  partial  reception  of  the  front  legs  in  Platypodidw;  coxal  caviaes 
usually  confluent;  separated  in  a  few  genera. 

Mesosternum  triangular,  pointed  behind,  or  slightly  truncate,  episterna 
{Platypodidce)  excessively  large,  ascending  between  the  base  of  the  pro- 
tliorax  and  elytra  with  the  epimera  small,  posterior  a;ul  transverse,  or  with 
thii  suture  very  indistinct;  coxae  rounded,  not  widely  separated. 

Metasteruum  long,  sometimes,  (Platypodidce)  very  long;  side  pieces 
parallel,  or  nearly  so,  not  dilated  in  front. 

Legs  moderate  in  length,    rather  stout,  front  coxae  almost  always  con- 

*Excopt  in  S-olytus.  Eutomus,  as  has  been  elsewhere  observed  is  not  a  Itliyn- 
cliopliorous  insect  but  allied  to  Shipidandriis. 


342  SCOLYTID^. 


[LeConte. 


tignous;  middle  and  hind  coxae  more  or  less  separated;  tibiae  compressed, 
toothed  or  with  transverse  ridges  on  the  outer  side;  armed  with  a  terminal 
hook  at  the  inner  apical  angle.  Tarsi  in  some  genera  filiform  and  5-jointed; 
in  others  4-jointed,  with  the  third  joint  either  narrow,  or  dilated  and  bi- 
lobed;  last  joint  long,  with  large,  simple,  divergent  claws. 

The  insects  of  tliis  family  are  mostly  of  cylindrical  form,  and  small  size- 
They  are  the  most  formidable  enemies  of  trees,  sometimes  devastating  the 
forests,  especially  of  conifere,  by  appearing  in  incredible  numbers:  the  bur- 
rows are  chiefly  betvveen  the  wood  and  the  bark,  though  some  genera  pene- 
trate more  deeply  (Xyloteres,  &fc).  The  patterns  made  by  them  are  complex 
and  vary  according  to  genus  and  species;  those  of  several  European  species 
arc  figured  in  the  excellent  work  of  Ratzeburg,*  and  since  descriptions  of 
our  species  are  now  accessible,  so  that  their  identification  is  easy,  I  trust 
that  those  interested  in  the  preservation  of  our  forest  trees  may  direct  their 
attenti(m  to  this  important  subject.  Specim-ns  of  the  ravages  of  these  in- 
sects should  be  carefully  collected,  with  individuals  taken  from  the  bur- 
rows, and  these  should  be  deposited  in  some  museum  where  they  will  be 
carefully  preserved  for  future  study. 

Since  the  publication  of  my  revision  of  this  fauiily.f  a  few  additional 
species  have  been  found,  and  a  renewed  study  of  the  genera  has  rendered 
necessarj'  some  modification  of  the  chissification  there  proposed. 

The  great  difi'jrences  exhibited  by  Platypus,  and  its  allies,  indicate  the 
propriety  of  separating  them  as  a  distinct   sub-family,  a  course  already 
adopted  by  Lacordaire. 
First  joint  of  tarsi  as  long  as  the  otliers  united PLATYPODID^E. 

"       "            "      much  shorter  tlian   the  others 
united SCOLYTID^. 

Sub-family  I.     PLATYPODID^. 

Head  large,  not  covered  by  the  prothorax,  front  wide,  oblique  or  vertical ; 
labrum  small,  but  distinct.  Beak  wanting;  eyes  rounded,  not  convex, 
finely  granulated  in  our  species.  Antennae  witii  large  scape  (elongated  and 
curved  in  some  foreign  genera),  and  large  compressed  solid  club,  which  is 
pubescent  except  for  a  small  space  at  the  bass;  funicle  composed  of  four 
small  joints.  Prothorax  elongate,  truncate  before  and  bisinuate  behind; 
subsinuate  on  the  sides;  flanks  broadly  excavated  for  reception  of  front  legs. 
Prosternum  moderately  long  in  front  in  the  coxae,  which  are  very  large, 
conical,  exserted  and  contiguous  in  our  species;  space  behind  tlie  coxae  very 
short.  Pronotum  considerably  longer  than  the  under  surface;  middle  of 
base  notched  for  reception  of  the  carina  of  tlie  mcsonotum.  Mesosternum 
triangular,  middle  coxae  narrowly  separated;  episterna  very  large,  quad- 
rate, occupying  the  space  formed  by  the  prolongation  of  the  pronotum;  epi- 

*Die  Forst-Insecten,  Vol.  i. 

fSynopsis  of  the  ScolyUdce  of  America,  north  of  Mexico,  bj'  C.  Zimmermann, 
M.D.,  with  notes  and  additions  by  J.  L.  LeConte,  M.D.  Trans.  Am.  Ent,  Soc.  IKKS, 

m. 


LeConte.] 


SCOLYTID.E.  343 


mera  small,  transverse,  posterior  and  intllstinct.  Metastenium  very  long, 
episterna  parallel,  ratlier  wide;  liiad  coxie  slightly  separated.  Ventral  seg- 
ments 5;  first  and  second  very  sh<»rt,  together  scarcely  equal  to  the  thii'd. 
which  is  equal  to  the  fourth;  fifth  a  little  longer,  rounded  behind;  last  dor- 
sal segment  horiz  )ntal,  partially  or  completely  covered  by  the  elytra,  ac- 
c^rding  as  the  segments  are  deflexcd  or  retrac  ed. 

Elytra  margined  and  perpendicularly  declivous  at  base,  striate,  variously 
prolonged  into  processes  at  tip,  according  to  species  and  sex.  Mesonotum 
strongly  carinate. 

Legs  short,  thighs  stout,  compressed;  tibiaj  shorter  than  the  thighs,  stoul, 
unguiculate,  marked  on  the  outer  side  with  transverse  ridges.  Tarsi  long, 
slender,  first  joint  as  long  or  longer  than  the  three  following  united;  fourth 
joint  one-half  as  long  as  the  third;  fifth  as  long  as  the  joints  2-4  united; 
claws  long,  simple,  divergent. 

This  sub- family  is  represented  in  our  fauna  by  a  fow  species  of  Platypus 
found  chiefly  in  the  Southern  States.  The  species  are  cylindrical,  and  sug- 
gest a  resemblaace  to  certain  Colydlkim,  from  which,  however,  they  widely 
depart  in  structural  characters. 

PLATYPUS  Herbst. 

In  this  genus  tlie  maxillary  palpi  are  large,  flat,  membranous,  4-jointed, 
with  the  joints  received  one  into  the  other,  and  the  pygidium  is  almost  or 
entirely  covered  by  the  elytra.  The  sexual  differences  in  the  processes  of 
the  elytra  are  such  as  to  make  it  difficult  to  construct  a  table  of  the  species: 

1.  Ventral  segments  with  elevations 2. 

"  "         without  elevations 3. 

2.  Elevations  at   the  posterior  margin   of  the 

third  segment 1.  flavicornis  9 . 

Elevations  very  acute,  at  the  posterior  mar- 
gin of  the  fourth  segment 2.  quadridentatus  9- 

3.  Prothorax  nearly  twice  as  long  as  wide 3.  compositus  (5^  9- 

"  one-half  longer  than  wide 4.  rugulosus  ^f  9- 

"  with  two  large  discoidal  punctures  1.  flavicornis  ^J*. 

1.  P.  flavicornis  Chap.,  Mon.  Plat.  154,  f  70,  rj*  9  :  BostrirJu/.s  flav. 
Fabr.,  Mant.  212;  Sp.  Ins.  i,  67;  Ent.  Syst.  ii,  364;  Syst.  Kl.  ii,  384;  Herbst, 
Kafer,  v,  118;  Scolytm  fiac.  Oliv.,  Ent.  78,  4,  pi.  1,  f.  1. 

(^.  Elytra  with  the  third  interspace  somewhat  elevated  and  roughened  at 
base;  the  posterior  process  of  the  elytra  shorter  and  less  acute;  the  declivity 
of  the  elytra  concave  near  the  tip,  and  the  tip  itself  truncate  and  feebly 
emarginate.  Ventral  segments  finely  rugose,  regularly  convex;  prothorax 
with  a  large  puncture  each  side  of  the  anterior  extremity  of  the  short  dorsa! 
impressed  line;  P.  dinciporus  Chap.,  1.  c.  219,  f  123,  is  a  variety  in  which 
the  elytral  process  is  shorter  and  less  prominent. 

9.  Elytra  with  the  base  of  the  third  interspace  lcs>  elevated;  the  poste- 
rior process  longer,  more  acute,  serrate  on  the  outer  side.     Ventral  surface 


'M4:  SCOLYTID.E.  [Leconte. 

punctured  and  finely  rugose,  opaque;  posterior  margin  of  third  and  fourth 
segments  thickened,  the  former  with  two  distant  con-ical  elevations. 

South  Carolina,  Florida  and  Texas,  extending  into  Mexico.  Length  5.3 
-J. 7  mm.;  .21-. 23  inch. 

2.  P.  quadridentatus.  Scolytm  quadr.  Oliv.,  78.5;  pi.  l,f.  3: Lee.  apud 
Chapuis,  Mon.  Plat.  338,  (err.  cler.):  P.  BlancharcU  Q\va\^.,  Mon.  185, f.  96. 

9 .  Elytra  deeply  striate,  with  a  posterior  process  at  the  end  of  the  third 
interspace,  and  a  large  compressed  ob'us.dy  truncate  one  at  the  junction  of 
tlie  fifth  and  eighth  interspaces:  ventral  surface  opaque,  densel}'  punctured; 
faurlh  segment  with  two  acute  spines  near  the  hind  margin. 

cj'.  Unknown. 

Florida:  length  4  m:n.;  .10  inch;  occurs  also  in  Texas,  according  to  Mr. 
Chaituis,  if  I  am  correct  in  considering  liis  species  as  the  same. 

3.  P.  compositus  Say,  Journ.  Ac.  Xat.  Sc.  Phila.,  iii,  324  (?);  ed. 
Lee.  ii,  182;  Er.,Wiegm.  Arch.  1836,  ii,  65;  Chapuis,  Mon.  Plat.  163,  f.  75, 
(^.  9  ;  -P-  parnllelus  Chap.,  ibid.  104,  f.  70,  J^,  $  ;?  Bostrlchus  par.  Fabr., 
Syst.  El.  ii,  384,  (description  of  no  value);  ?.  P.  tremiferus  Chap.,  Mon. 
Plat.  174,  f.  85,  r^,  $  ;  V  P.  perfossus  Chap.,  ibid.  170,  f.  80,  J,  9  ;  '?  P. 
rufjosuii  Chap.,  ibid.  170,  f.  87,  c?,  9. 

J^.  Apical  part  of  front  smooth;  prothorax  scarcely  punctulate;  elytra 
transversely  impressed  near  the  tip,  without  posterior  process.  Ventral 
segmen'.s  shining,  sparsely  punctulate. 

9  .  Front  uniformly  rugose;  protliovax  distinctly  punctulate;  elytra  with 
the  second  interspace  compressed  and  forming  an  acute  cusp  near  the  tip; 
fifth  and  ninth  interspace  prolonged  into  a  large  process,  which  is  concave 
above,  and  tridentate  at  tip;  the  outer  tooth  much  longer,  narrow  and  trun- 
cate r  r  emarginate  at  tip  according  to  age  of  specimen,  or  directio:i  of  view. 
Ventral  segments  opaque,  densely  punctured;  fifth  flat,  not  carinate,  nor 
tuberculate. 

Illinois  to  Texas,  Louisiana,  Florida,  South  Carolina.  Neither  the  figures 
nor  descriptions  of  Dr.  Chapuis  indicate  anything  more,  in  my  opinion, 
than  slight  individual  varia  ions  of  form  and  sculpture,  such  as  I  would  be 
unwilling  to  admit  as  having  specific  value.  Nevertheless,  as  I  have  not 
seen  the  typical  specimens,  I  cannot  be  certain  of  the  correctness  of  this 
view.  The  original  description  of  Fabricius  refers  to  a  male  of  this  or 
some  allied  species,  but  is  quite  irrecognizable,  and  should  not  take  prece- 
dence over  the  well-defined  characters  published  by  Sa}'.  Length  4  mm. ; 
.16  inch. 

4.  P.  rugulDSus  Chap.,  Mon.  Plat.  192,  f.  103,  ^j^,   9. 

c^.  Front   entirely   opaque,  finely  rugose;  pr-othorax  feebly  punctulate; 
elytra  finely  not  deeply  striate,  transversely  impre^^sed  at  tip,  without  sub- 
apical  process.     Ventral  segments  shining,  sparsely  and  finelj^  punctured. 
9.  Front  entirely  opaque,  densely  rugosely  punctured  (arenlate  in  fact); 
prothorax  unequally  punctulate  and  punctured,  less  finely  at  the  sides;  ely- 


LeConte.] 


TOMICINI.  845 


tra deeply  striatopunctate,  interspaces  more  convex  behind;  second  elevated, 
forming  a  small  cusp  at  the  posterior  declivity;  posterior  process  as  in  the 
preceding,  but  shorter  and  stouter,  with  the  three  teeth  of  nearly  equal 
length,  the  outer  one  broad,  and  not  very  distinctly  separated  from  the 
upper  one  ;>  the  inferior  one  a  little  shorter  and  acute.  Ventral  segments 
opaque,  densely  punctured;  fifth  sometimes  finely  caiinate,  sometimes  feebly 
tuberculate . 

Cape  San  Lucas,  Lower  California;  Mr.  Xantus;  also  found  in  Mexico. 
This  species  is  allied  to  the  preceding,  but  is  less  elongate,  the  prothorax 
being  but  little  longer  than  wide,  and  the  deep  impressed  dorsal  line  is 
longer,  and  not  terminated  in  front  by  a  short,  transverse  impression.  The 
sexual  characters,  as  will  be  seen,  are  quite  diffei'ent. 

5.  P.  punctulatus  Chap.,  Mou.  Plat.  199,  f.  110,   ?. 
Texas,  allied  to  the  preceding,  and  apparently  differs  only  by  the  last 
ventral  segment  having  a  strongly  marked  tubercle.     Unknown  to  me. 

Sub-family  II.     SOOLYTID,^  (geauini). 

The  characters  by  which  this  sub-family  differs  from  the  Platypodidce  have 
been  already  sufficiently  pointed  out;  in  other  respects  the  species  differ 
greatly  according  to  genus  and  tribe,  and  the  chief  peculiarities  will  be 
pointed  out  under  the  appropriate  heads. 

The  genera  which  occurs  in  our  fauna  indicate  the  following  tribes: 
1.  Pi'othorax  not  prolonged  over  the  head,  which  is  oblong 
and  prominent;  tarsi  with  fourth  joint  smaller  or  in- 
distinct; third  joint  usually  bilobed 2. 

Pi'othorax  prolonged  over  the  head,  which  is  deeply  im- 
mersed and  globose;  tarsi  filiform,  5  jointed T»>Mlol.\r, 

3.  Ventral  sui'face  ascending  obliquely, s<_'<»L yti.\' i. 

"  "      regularly  cylindrical H  ytesixi. 

Tribe  I.     TOJiiciJll. 

Although  the  genera  of  this  tribe  are  the  farthest  removed  from  Coft- 
sonidce  bj^  their  characters;  they  are  in  some  respects  the  most  nearly  allied 
to  Platypus,  with  which  the  family  must  naturallj^  commence,  on  account 
of  the  relations  between  the  latter  and  Brenthidw. 

The  head  is  globose,  or  nearly  so,  and  deeply  immersed  in  the  iirotiiorax ; 
the  eyes  are  transverse,  sometimes  divided,  {Xyloterus);  the  front  is  not 
prolonged  into  a  beak;  the  antenna3  are  inserted  near  the  base  of  the  man 
dibles;  the  scape  is  long  and  stout,  the  funicle  short,  composed  of  from  one 
to  five  joints,  the  m.iss  large,  compressed,  varying  in  form  and  structure  ac- 
cording to  genus.  Prothorax  more  or  less  cylindrical  behind,  prolonged  in 
fi-ont  over  the  head  a  id  much  rounded,  so  that  the  anterior  opening  be- 
cimes  very  oblique,  or  even  sometimes,  almost  horizontal;  t'le  sculpture  is 
peculiar,  and  consists  for  a  greater  or  less  distance  from  the  apex  of  sliarp 
granules,  or  little  spines;  behind,  the  su. 'face  is  smooth  oriunctured;  the 
PROC.  a.mp:i{.  piiiLO^".  st)C.  XV.  9G.  2k 


346  SCOLYTID^. 


[LeConte. 


side  margin  is  not  distinct.*  Tlie  mesonotum  is  never  carinate  as  in  Platy- 
pus. Elytra  suddenly  declivous  in  front,  so  that  the  edge  fits  against  the 
base  of  the  pronotum;  usually  obliquely  excavated  and  toothed  on  the  pos- 
terior declivit}^;  ridge  on  inner  surface  near  the  outer  margin,  effaced  near 
the  tip;  groove  very  deep  and  narrow.  Pj-gidium  entirel}'  covered.  Me- 
sosternum  acute  behind,  side  pieces  obliquely  divided,  epimera  small,  not 
attaining  the  coxse,  Metasternum  rather  long,  side  pieces  narrow.  Ventral 
segments  five;  first  and  second  longer,  closely  united;  fifth  longer  than 
tlie  fourth,  rounded  behind,  edge  acute,  fitting  under  the  elytral  edge. 
Front  coxae  large,  globose,  pi'ominent  and  contiguous;  middle  coxre  nearly 
contiguous;  hind  coxa^  also. 

Legs  stout,  thighs  thick,  not  toothed;  tibiae  compressed,  armed  with  a 
large  hook  at  the  inner  angle  of  the  apex;  outer  edge  serrate  and  acute; 
rarely  flattened,  with  two  edges,  between  which  are  transverse  ridges, 
som  nvhat  as  i:i  Platypus.  Tarsi  slender;  four.h  joint  very  small,  but  dis- 
tinct; fifth  joint  long,  with  large,  divergent  simple  claws. 

Crypturgus  and  Dolurgus  seems  to  me  more  properly  placed  in  the  tribe 
Ilylurgini.    The  other  genera  represented  in  our  fauna  arrange  themselves 
na'urally  into  groups,  according  to  the  structure  of  the  club  of  the  antennae. 
Club  large,  oval,  compressed,  pubescent  and  transversely  an- 
nulated  on  both  sides,  sutures  straight  or  slightly  curved; 

inner  face  usually  broadly  concave;  tibi*  serrate Corthyli. 

Club  large,  oval,  solid,  pubescent  on  both  sides;  eyes  com- 
pletely divided;  tibis^  serrate Xyioterf . 

Club  small,  entirely  corneous  on  the  inner  face,  obliquely 
truncate  on  the  outer  face;  truncature  spongy  and  sensi- 
tive, marked  with  two  concentric  lines,  or  transverse  su- 
tures, or  entirely  terminal  and  narrow;  tibiae  serrate Xylebori. 

Club  large,  oval  or  rounded,  compressed,  entirely  corneous 
on  the  inner  fiice,  more  or  less  pubescent  on  the  outer 
face,  and  divided  by  two  or  thre3  sutures,  which  are 
usually  sinuated  or  angulated;  declivity  of  elytra  deeply 
concave  with  acute  margin,  usually  strongly  toothed; 
funicle  of  antennsB  with  five  distinct  joints;  tibiae  coarsely 

serrate Toniici. 

Club  elongate-oval,  marked  on  each  side  by  sutures  which 
are  sometimes  long  and  curved,  but  sometimes  nearly 
straight;  the  basal  joint  corneous,  others  pubescent;  fu- 
nicle 5-jointed;  elytra  convex  behind,  with  the  suture 
slightly  prolonged;  tibiae  fringed  with  hair,  but  not  ser- 
rate; tarsi  usually  with  joints  1-3  rather  stout,  fourth 
very  small,  fifth  long  and  slender Mlcracldes. 

*One  at  least  of  the  groups  (E'ltoni'des),  mentioned  by  Lacordaire,  having  the 
flanks  separate  from  the  pronotum,  must  be  excluded  from  this  family;  it  is  al- 
lied to  Rhipidandrus  Lee,  which  I  placed  in  Tenebrionid(e.  Its  position  and  af- 
finities are  still  doubtful.  Vide  Chapuis,  Mem.  Soc.  Ro}%  I.i6^e,  18C9,  0 ;  Horn, 
Trans.  Ent,  Soc.  1875,  151. 


LeConte.]  TOMICIXI.  317 

Group  I.      Corthyli. 

In  this  group  the  species  are  mostly  of  very  small  size,  and  are  easily  rec- 
ognized by  the  c'ub  of  the  antennte.  which  is  pubescent  and  annulated  with 
nearly  straight  sutures  on  both  sides.  One  species  of  Mkracls  (hirteUu^\ 
as  will  be  s^en  below,  has  a  nearly  similar  club,  and  shows  thereby  a  re- 
semblance to  the  present  group,  but  is  otherwise  so  closely  allied  to  the 
other  Micracis  that  I  have  not  been  disposed  to  separate  it  from  them.  The 
funicle  varies  from  one  to  five  joints;  the  tibiae  are  serrate  or  ridged  trans- 
versely on  the  outer  side;  the  tarsi  are  slender,  the  fourth  joint  distinct; 
fifth  long,  with  simple,  divergent  claws.  The  anal  segment  of  the  (^  is  oc- 
casionally visible  from  beneath. 

The  genera  may  be  thus  separated : 

1.  Funicle  1 -jointed 2. 

"       2-5-jointed , 3. 

3.  Body  robust CORTHYLUS. 

Body  slender MONARTHRUM. 

3.  Outer  part  of  funicle  rather  slender PITYOPHTHORUS. 

very  short HYPOTHENEMUS. 

CORTHYLUS  Er. 

The  body  is  much  more  robust  than  in  Monarthmm,  and  the  upper  sur- 
face is  strongly  punctured.  The  club  of  the  antenna?,  connected  with  the 
1-jointed  funicle  by  a  short  slender  peduncle,  is  much  larger,  opaque,  finely 
pubescent,  not  fringed.  The  front  tibiiie  are  flattened  and  margined  on  the 
outer  face,  but  there  are  no  transverse  ridges  as  in  Monarthrum,  and  only 
three  acute  teeth  on  the  anterior  edge  near  the  tip;  the  tarsi  are  less  slender, 
the  1st  joint  is  a  little  shorter  than  the  2d;  the  2d  and  3d  are  equal,  the 
4th  small,  5th  as  long  as  the  2d  and  3d  united,  slender,  claws  divergent, 
simple,  ventral  segments  subequal,  5th  not  longer  than  4th,  truncate; 
pygidium  convex,  partly  inflexed,  distinctly  visible  from  beneath;  1st  ven- 
tral suiure  deeply  impressed. 

The  pronotum  is  marked  wi.h  a  fine  lateral  line  near  the  hind  angles, 
and  along  the  base;  the  prosternum  is  extremely  short  in  front  of  the  coxa?. 
Neither  of  these  characters  occurs  in  Monarthriim  fasciatum,  but  the  first 
of  them  exists  in  the  other  species  which  I  have  referred  to  that  genus. 

1.  C.  punctatissimus.  Cryphirgus  pimct.  Zimm.,  Trans.  Am.  Ent. 
Soc.  1868,  144. 

(^.   Head  flattened,  opaque,  slightly  and  broadly  concave  at  the  middle. 

9  .  Head  slightly  convex,  shining,  punctured. 

Middle,  Southern  and  Western  States;  rare.     Length  4  mm.;  .15  inch. 

MONARTHRUM  Kirsch. 

In  this  genus  the  bodj'  is  elongate  and  cylindrical;  the  scape  of  the  an- 
tenna? is  long  and  slender,  the  funicle  of  but  one  short  joint,  the  others  being 
absorbed  in  the  club,  which  is  rounded,  very  much  conij  ressed,  with  two 


'S4^S  scolytid.tE. 


[LsUonte. 


deep  straight  transverse  sutures,  fringed  at  the  end  witli  very  long  cilise  or 
bristles  in  tlie  J^,  or  even  {mali)  furuislied  with  a  long  spine;  eyes  slight!}' 
eiuarginate.  Prothorax  much  longer  than  wide,  disc  finely  asperate  in 
front,  alutaceous  behind;  anterior  opening  oblique.  Elytra  elongate,  nearly 
l^erpendicularly  declivous  behind,  and  pubescent  on  the  declivity;  feebly 
punctured  in  rows.  Front  tibiie  flattened  on  the  outer  side,  with  two  dis- 
tinct edges,  between  which  are  transverse  ridges;  tarsi  long  and  slender; 
first  joints  longer;  2-3  equal,  fourth  small,  fifth  as  long  as  second  and  third 
united.  Ventral  segments  first  and  second  longer;  third,  fourth,  and  fifth 
short,  equal,  the  last  broadly  rounded  at  tip,  nearly  truncate.  Anal  seg- 
ment present  in  both  sexes  perpendicularly  declivous,  small,  triangular, 
with  rounded  angles. 

A.  Club  of  antennae  of  r^  fringed  at  the  tip  with  long 

hairs;  Corthylominus  Ferrari 

Posterior  declivity  of  elytra  hairy;  elytra  yellow, 

with  the  posterior  third  black 1.  fasciatum. 

B.  Club  of  anteume  of  rf  with  a  long  acute  spine,  and 

a  few  hairs;  Cosmocokyni's  Ferrari. 
Larger,  piceous,  elytra  l)rownish  at  base,  pubescent 

at  tip 2,  scutellare. 

Smaller,  brown,  prothorax  testaceous  behind,  elytra 

not  hairy  at  tip 3.  dentigerum. 

Smaller,   brown;    elytra    not  hairy  at  tip,    suture 

deeply  impressed  on  posterior  declivit}' 4.  mali. 

1.  M.  fasciatum.  Bostr'chus  fiisc.  Say,  Journ.  Ac.  Nat.  Sc.  Phila.  v, 
255;  ed.  Lee.  ii,  318;  Crypturgm  fme.  Zinim.,  Trans.  Am.  Ent.  Soc.  1808, 
143;  CorthylominuH  fasc.  Ferrari,  Tomicides,  48;  Pterocyclon  simile  Eich- 
hoff,  Berl.  Ent.  Zeitschr.  1868,  277. 

1^.  Club  of  antennae  fringed  with  very  long  hairs;  posterior  declivity  of 
the  elytra  slightly  concave  near  the  suture,  with  one  small  tubercle  towards 
the  u;)per  part;  feebly  margined  near  the  tip, 

9-  Club  of  antennae  wi.h  only  a  few  shorter  marginal  hairs;  declivity 
of  elytra  more  strongly  margined  near  the  tip;  the  tubercle  is  replaced  by 
a  loig  elevatioi,  parallel  with  the  suture,  slightly  cuspidate  in  front. 

Lake  Superior  to  Florida.  Length  2.4  mm. ;  .10  inch.  The  head  is  large, 
fiat  and  opaque  in  both  sexes,  but  is  sligiitly  impressed  in  the  9  • 

2.  M.  scutellare.  Corihylus  scut.  Lee.,  Pac.  R.  R.  Expl.  and  Surveys, 
Insects,  49  (^  ;  Gorthylomimus  sciU.  Yarvivvx,  Tom.  49;  Cryphalus  cavus 
Lee.,  Trans.  Am.  Ent.  Snc.  1868,  153,  (9^ 

^. Cub  of  antennae  with  a  few  long  hairs  at  the  tip;  armed  with  a  long 
porrect  spine  on  the  outer  margin;  declivity  of  the  elytra  flat,  margined 
near  the  tip,  with  tlnve  small  denticles  each  side  near  the  suture,  and  along 
the  upper  part;  also  two  others  on  the  face  of  the  declivity,  wliich  is  slightly 
hairy.     Head  flat,  fringed  with  hairs. 

9.  Clab  of  ant^na.e  ov.ilroun.lsd  withj.it  a_)icil  sphij;  daalivity  of  ely- 


LeOonte.] 


TOMICINI.  349 


tra  deeply  concave,  slightly  hairy,  boundad  by  a  sharp  edge,  from  the  tii) 
for  nearly  two-tliirds  its  length;  this  edge  terminates  in  a  cusp  at  the  ante- 
rior end;  the  three  small  d_'nticles  at  the  upper  margin  of  the  declivity  are 
much  stronger  than  in  the  rj*.  Head  slightly  convex,  not  friiiged  with 
hairs,  coarsely  punctured,  li.iely  rugos:^  and  opaque  near  the  tip. 
California;  San  Jose  and  Fort  Tejon.     Length  3.5  mm.;  .14  inch. 

3.  M.  dentigerum.  CryplialuH  dentiger  Lee,  Trans.  Am.  Ent.  Soc. 
1868,  154. 

9-  Club  of  antenniB  not  fringed;  declivity  of  elytra  refuse  at  the  side, 
deeply  concave  towards  the  suture,  with  an  acute  cusp  in  the  concavity 
each  side,  about  equidistant  from  the  sutura  and  the  apex,  which  is  acutely 
and  strongly  margined.     Head  flat,  opaque.     (^  unknown. 

One  9,  Middle  California,  given  me  by  Dr.  florn.  The  posterior  half  of 
the  prothorax,  the  antennfe  and  legs  are  yelUiw-testaceous;  the  rest  of  ilu 
body  is  blackish  brown.     Length  3  mm.;  .08  inch. 

4.  M.  mali.  Tomicut  mali  Y'lich,  N.  York  Reports  on  noxious  Insects, 
iii,  p.  8,  No.  5;  Zimm.,  Trans.  Am  Ent.  Soc.  1868,  143;  Pterocyclon  loiifj- 
uliim  Eichoff,  Berl.  Ent.  Zeitschr.  1868.  278. 

(J'.  Club  of  antennae  with  a  long  apical  spine,  and  a  few  hairs;  declivity 
of  elytra  oblique,  not  retuse  at  the  sides,  acutely  margined  only  at  the  apex, 
and  for  a  short  distance  behind;  face  of  declivity  with  a  slight  reniform  ele- 
vation rising  into  two  cusps  near  the  suture,  which  is  deeply  impressed  and 
excavated  at  that  place;  head^flat,  opaque,  not  fringed  with  hairs. 

9.  Club  of  antennae  without  apical  spine;  declivity  of  el3'tra  as  in  rT.but 
with  the  reniform  elevation  and  its  two  cusps  much  stronger;  head  slightly 
convex,  sub  opaque,  feebly  punctured. 

Lake  Superior  to  Florida;  depredates  on  apple  trees.  Length  2  mm. ;  .08 
inch.  By  a  typographical  error  I  cited  Dr.  Fitch's  Second  Report  for  this 
species. 

PITYOPHTHORUS  Eichhoff. 

Under  this  name  I  would  associate  most  of  the  species  which  I  formerly 
called  Cryphalus,  but  which  differ  from  Cryphalus  tilm  by  having  the 
sutures  of  the  antennal  club  transverse,  nearly  straight  and  visible  on  both 
sides,  instead  of  strongly  curved,  as  in  that  species.  The  funicle  of  the  an- 
tennae consists  of  two  parts;  the  first  joint  rather  large,  as  usual,  and  about 
as  wide  as  long;  the  remainder  is  narrow  at  base,  gradually  becoming 
broader,  and  forming  a  slem  to  the  club;  this  stem  is  divided  by  three 
transverse  sutures  which  are  frequently  very  indistinct,  and  I  consider 
their  number  as  having  little  value. 

The  front  tibiie  are  c  )mpressed.  with  one  acute  outer  edge,  but  no  flat- 
tened space  as  in  Monarthrum;  this  edge  is  very  feebly  serrate;  the  joints 
1-3  of  the  tarsi  are  subequal  and  rather  stout,  the  fourth  is  small;  fifth  about 
as  long  as  the  others  united;  claws  large,  divergent. 

A.  Club  of  antennse  nearly  smooth  on  the  outer  surface,  and  indistinctly 
annulated,  sparsely  fringed  with  long  hairs;  upper  surface  pubescent,  su- 


350  SCOLYTID.^. 


[l.eCoiit€. 


tures  deep,  sUglitly  cuvved.  Hairs  of  the  body  slender,  n  )t  verlicellate  nor 
serrate;  elytra  feebly  punc^u.-ed;  pr.)tliorax  asperate  in  front, nearly  smoot!i 
behind.  Fifth  ventral  segment  broadly  rounded  behind,  pygidium  but 
slightly  visible  from  beneath;  Gnathotrichus  Eichhoft'. 

1.  Posterior  declivity  of  elytra  not  retiise   2. 

"                "                "      retuse,  concave  near  the 
suture 1.  retusus. 

2.  Prothorax  moderately  rough  in  front 2.  materiarius. 

"  very  rough  in  front,  size  much  smaller.  .         3.  asperulus. 

1.  P.  retusus.  Cryphnlusret.  Lee,  Trans.  Am.  Ent.  Soc.  18G8,  155, (  9  ]'< 
C.  sxdcatus  Lee,  ibid.  155,  (^. 

(^.  Front  finely  and  convergently  striate;  posterior  callosity  of  the  elj-'.ra 
less  prominent. 

9.  Head  s'.iining,  sparsely  and  strongly  punctured;  posterior  callosity  of 
elytra  more  prominent. 

California,  Oregon  and  Vancouver  Island.     Length  3.5  mm.;  .14  inch. 

2.  P.  materiarius.  Tom'cus  mat.  Fi  ch,  "N".  York  Reports  on  noxious 
In.sects,  iv,  p.  41,  No.  246;  Crypturgux  mat.  Zimm.,  Trans.  Am.  Ent.  Soc. 
1838,  143;  Onathotrichustcorthyloldes'EAchXwQ,  Berl.  Ent.  Zeitschr.  1868,275. 

9 .  Head  shining,  sparsely  but  strongly  punctured. 

(^.  Unknown  to  me. 

Canada  to  Texas.  Length  2.5  mm.;  .10  inch.  Infests  pine  timber.  The 
galleries  as  figured  by  Dr.  Fitch,  are  remarkable  for  the  branches  being 
sliort,  parallel,  and  at  right  angles  to  the  main  gallerj'.  He  also  observes, 
what  is  probably  true  of  all  the  species  which  mine  into  the  wo  ,d,  instead 
of  siniply  under  the  bark,  that  the  females  are  vastly  more  numerous  than 
the  males. 

3.  P.  asperulus,  Cryplialus  asp.  Lee,  Trans.  Am.  Ent.  Soc,  1868,  155. 
Virginia,  Mr.  E.  T.  Cresson;  one  female;  the  head  is  retracied,  but  so  far 

as  I  can  see  seems  to  be  flat,  and  punctured  as  in  the  preceding.  Length 
1.0  mm.;  .06  inch. 

B.  Club  of  antennae  distinctly  annulated  and  pubescent  on  both  sides,  not 
fringed  with  long  hair.  Hairs  of  the  body  stout  or  slender,  not  verticellate 
nor  serrate.  Prothorax  asperate  in  front,  finely  punctulate  behind.  Elytra 
punctulate  and  pubescent.  Front  tibits  moderately  serrate,  front  tarsi  witli 
joints  1-3  stout;  fifth  longer  than  the  others  united.  Pygidium  scarcely 
visible  from  beneath. 

Elytra  scarcely  punctulate;  hairs  stout,  short 4.  minutissiraus. 

Elytra  finely  punctula'e;  hairs  longer,  and  short,  in- 
termixed    5.  pubipennis. 

Brown,  shining,  moi-e  slender,  more  strongly  punc- 
tulate, hnirs  s;  arse,  fin*; 6.  pilosulus. 


LeConte.] 


TOMICIXI.  351 


4.  P.  minutissimus.  Toinicvs  jnisillus\\Uarr\s,  Trans.  Xat.  Hist.  Soc. 
Hartford,  83;  Crypturgu><X  min.  Zimm.,  Trans.  Am.  Ent.  Soc.  1868,  143 
(nee  Fitch,  N.  York  Reports  on  noxious  Ir.s.  iv.  No.  245). 

rf .  Head  deeply  concave,  edges  of  concavity  fringed  with  long,  yellow, 
silky  hairs. 

9  •  Head  punctured,  slightly  hairy. 

Middle  and  Southern  States.  Length  1.8  mm.;  .C7  inch.  If  the  name 
T.  pusillus  II  is  to  be  cited  under  any  species  it  must  be  for  this,  which 
agrees  very  well  with  the  description  of  Dr.  Harris,  That  mentioned  by 
Dr.  Fi'ch  is  quite  difterent,  and  is  close'y  allied  to  P.  ramulorum  Perris, 
which  is  considered  by  Eiehhotf  as  the  same  with  typograplms  Ratz. 

5.  P.  pubipennis.  Tomicus  pub.  Lee,  Pac.  R.R.  Expl.  and  Surv.  Ins. 
59;  CryphaluH  pub.  Lee,  Ti'ans.  A.m.  Ent.  Soc.  1868,  156. 

(^.  Head  deeply  concave;  edge  of  tli3  concavity  fringed  with  long  silky 
hairs. 

9.  Head  shining,  sparsely  hairy,  punc'ured  with  an  interocular  tubercle. 
San  Jose,  California;  the  longer  hairs  of  the  elytra  are  arranged  in  rows. 

6.  P.  pilosulus.  Cryphalus  pit.  Lee,  Trans.  Am.  Ent.  Soc.  1868,  156. 

9.  Front  flat,  opaqu?,  Avith  a  finely  impressed  median  line. 

Middle  Calitbrnia.  I  have  but  two  specimens,  and  in  one  the  head  is  re- 
tracted upwards  so  that  no  part  of  the  upper  surface  is  visible.  Length  2 
mm.;  .08  inch. 

C.  Club  of  antenniB  distinctly  annulated  and  pubescent  on  both  sides, 
not  fringed  with  long  hair.  Hairs  of  body  slender,  verticellate  and  ser- 
rate, especially  on  the  head  and  prothorax.  Prothorax  asperate  in  front, 
punctured  behind.  Elytra  punctured,  sparsely  pubescent.  Front  tibiie 
finely  or  feebly  serrate  in  most  si^ecics. 

1.  Pygidium  strongly  inflexed,  causing  t'.ie  fifth  ventral 

segment  to  appear  broadly  emarginate 2. 

Pygidium  but  slightly  visible  from  benea'h, fifth  ven- 
tral broadly  rounded  or  subtruncate 4. 

2.  Elytra  retuse  behind,  without  cusps;  eyes  emargi- 

nate     , 3. 

Elytra  retuse  behind,  each  with  two  cusps;  eyes  not 

emarginate 7-  carinulatus. 

Elytra  with  coarse  punctures  arranged  somewhat  in 

rows 8.  pullus. 

Smaller  and  stouter,  elytra  with  large  punctures  not 

arranged  in  rows 9.  pulicarius. 

4.  Elytra  retuse  behind,  and  concave  along  the  suture.  6. 

not  retuse  on  posterior  declivity 7. 


352  SCOLYTID.i:.  [LeConte. 

5.  Elytra  strong!}'  punctured  in  approximate  rows 6. 

"       strongly  and  confusedly  punctured 10.  carinicepr. 

Elytra  finely  and  confusedly  punctured  11.  fossifrone. 

6.  Larger  and  stouter,  rows  of  punctures  confused  to- 

Avards  the  suture 12.  confinis. 

Smaller  and  more  slender,  rows  regular  approximate  13.  nitidulus. 

Much  smaller,  rows  more  distant,  asperities  of  pro- 
thorax  not  concentric 14.  puncticollis. 

Much  smaller,  rows  stronger,  asperities  of  prothorax 

concentric 15.  lautus. 

7.  Eh'tra  punctured  in  rows 8. 

' '        confusedly  pianctured,  hairs  erect 16.  puberulus. 

8.  Rows  of  punctures  irregular,  approxima'e 17.  digestus 

"  "  fine  and  distant;  prothorax  with 

an  oval  patch  of  d„'nse  hair  each  side 18.  comatus. 

7.  p.  carinulatus.  Cryphalus  car.  Lcc,  Trans.  Am.  Ent.  Soc.  1874,  70. 
California,  extending  as  far  South  as  theMojave  region.  The  pubescence 

is  long  and  erect,  and  the  eyes  are  not  eraarginate.  The  dorsal  line  of  the 
prothorax  is  narrow,  smooth  and  dis'inctly  elevated.  Length  2-3  mm.; 
.08-.  12  inch. 

(5^.  Seven  specimens  agree  in  having  the  head  dull,  densely  punctured, 
with  a  very  large  and  deep  excavation;  the  general  surface  of  the  head  is 
thinly^  clothed  with  erect  pubescence,  but  the  anterior  margin  of  the  front, 
above  the  mandibles,  is  fringed  with  long,  yellow  prostrate  hair. 

9  ?•  One  specimen  differs  in  having  the  head  more  convex,  less  densely 
punctured,  the  excavation  much  smaller  and  less  deep,  with  a  distinct  lon- 
gitudinal elevation  at  the  middle.  The  cusps  of  the  declivity  of  the  elytra 
are  less  prominent,  and  I  am  therefore  in  doubt  if  it  should  be  referred  to 
this  species. 

8.  P.  pullus.  Cryj^furgvsXpullun  Z\mm.,  Trans.  Am.  Ent.  Soc.  1868,  143; 
?  P.  bisulcatus  Eichhoff,  Bcrl.  Ent.  Zei.schr.  1868,  274. 

(J'.  Head  strongly  punctured,  rather  flat,  broadly  but  slightly  concave  in 
front. 

9.  Head  strongly  punctured,  uniformly  convex,  with  a  slight  callus  on 
the  front. 

Middle  States.  The  declivity  of  the  elytra  is  almrst  without  cusps,  and 
is  slightly  more  refuse  in  the  9  than  in  the  (^,  but  the  suture  is  strongly 
elevated  in  both.     Length  2.3  mm. ;  .09  inch. 

P.  pulchellus  Eichhoff,  1.  c.  275.  seems  to  Ijc  closelj'  allied  to  this 
species,  and  to  differ  chiefl}'  by  the  prothorax  strongly,  rugosely  punctured 
behind,  and  the  suture  less  elevated.  If  the  locality  be  California,  then  it 
may  possibl}^  be  P.  puncticollis,  but  until  the  species  of  this  avitlior  are  de- 
scribed with  some  reference  to  allied  species,  or  synoptic  tables  prepared, 
they  cannot  be  satisfactorily  identified. 


LeConte,] 


TOMiciNi.  353 


9.  P.  pulicarius.  CrypturgusXpul.  Zimin.,  Trans.  Am.Ent.  Soc.  1868, 
144. 

Illinois,  South  Carolina  and  Florida;  four  specimens,  in  which  there  is 
no  sexual  difterence;  the  head  is  punctured  and  convex,  with  a  very  small 
frontal  callus.  The  form  is  stouter,  the  size  much  smaller,  and  the  punc- 
tures coarser  than  in  our  allied  species;  the  pubescence  is  sparse,  long  and 
erect.     Length  1.5  mm.;  .06  inch. 

10.  P.  cariniceps,  n.  sp. 

Rather  slender,  cylindrical,  blackish  piceous  shining,  pubescence  fine, 
sparse  and  erect,  Head  ((^^  finely  punctured,  opaque,  with  two  very  deep 
excavations,  extending  almost  to  the  front  margin,  and  separated  by  a  nar- 
row, elevated,  longitudinal  carina;  eyes  deeply  and  narrowly  emarginate. 
Prothorax  longer  than  wide,  anterior  half  densely  asperate,  separated  from 
the  posterior  halfby  a  shallow,  transverse  impression;  posterior  half  shining, 
distinctly  but  not  densely  punctured,  smooth  dorsal  line  not  elevated,  base 
distinctly  margined.  Elytra  strongly  punctured,  punctures  arranged  partly 
in  rows;  declivity  strongly  retuse,  with  a  few  little  asperities  on  the  highest 
part  of  the  elevation;  suture  slightly  impressed,  and  marked  with  a  row  of 
punctures  as  far  as  the  declivity,  where  it  becomes  smooth  and  deeply  im- 
pressed, concavity  smooth,  broader  at  the  tip.  Pygidium  scarcely  visible 
from  beneath;  fifth  ventral  not  longer  than  fourth,  broadly  rounded  behind. 
Antennae  and  legs  yelloAv-brown;  club  transversely  annulated  with  curved 
sutures;  outer  part  of  funicle  indistinctly  divided  into  four  parts;  tibife  with 
two  or  three  feeble  teeth  towards  the  tip.     Length  2.5  mm. ;  .10  inch. 

Detroit,  Michigan;  Messrs.  Hubbard  and  Schwarz;  one  (j^.  The  pubes- 
cence has  probably  been  partly  abraded.  The  peculiar  sculpture  of  the  head 
induces  me  to  believe  that  the  reference  of  the  supposed  9  under  P.  airin- 
idatus  may  be  erroneous,  and  that  it  probably  indicates  a  distinct  species, 
w^hich,  however,  cannot  be  correctly  defined  from  want  of  sufficient  mate- 
rial. 

11.  P.  fossifrons,  n.  sp. 

Of  the  same  form  and  color  as  the  last,  but  the  head  {(^)  has  one  round 
and  very  deep  fovea,  and  the  eyes  are  not  emarginate.  Prothorax  longer 
than  wide,  asperate  on  the  front  half,  strongly  and  deeply  punctured  be- 
hind; smooth  dorsal  line  narrow,  distinctly  elevated  towards  the  middle  of 
the  disc.  Elytra  rather  finely  and  not  regularly  punctured;  pubescence  long, 
erect;  sutural  stria  visible,  deeply  excavated  behind;  declivity  slightly  re- 
tuse, with  two  indistinct  cusps.  Antenna?  and  legs  yellow-brown,  of  the 
same  form  as  in  the  last.     Length  2.3  mm.;  .09  inch. 

Vancouver  Island ;  Messrs.  Matthews;  two  (^  specimens.  This  species; 
resembles  P.  carinulatus  in  sculpture,  and  in  the  form  of  the  eyes;  but  the 
excavation  of  the  head  is  smaller,  deeper  and  more  pit-like;  the  posterior 
callosity  of  the  elytra  is  less  prominent;  the  cusps  are  small  and  feebly  de- 
veloped, and  finally  the  pygidium  is  much  less  inflexed,  so  as  to  be  hardly 
visible  from  beneath. 

PROC.   AMER    PHTT.OS.  SOC.  XV.  96.  2s 


354  SCOLYTID^. 


[LeConte. 


12.  P.  conflnis,  n.  sp. 

Rather  slender,  piceous  black,  shiniug,  (nearly  glabrous  V;.  Eyes  deeply 
emarginate.  Prothorax  a  little  longer  than  wide,  strongly  asperate  over  a 
circular  space  extending  from  the  middle  to  the  tip,  coarsely  punctured  on 
the  rest  of  the  surface;  smooth  dorsal  line  not  elevated,  obsolete  in  some 
specimens;  base  finely  margined.  Elytra  strongly  punctured;  punctures 
here  and  there  arranged  in  approximate  rows,  but  confused  towards  the  su- 
ture; declivity  retusc,  but  without  cusps,  concavity  smooth,  sutural  stria 
deeply  excavated  behind.  Antennse  and  legs  brown,  of  the  same  form  as 
in  those  above  described.  Pygidium,  except  when  protruded,  but 
slightly  visible  from  beneath;  fifth  ventral  not  longer  than  fourth,  and  not 
emarginate.     Length  2.5  mm.;  .10  inch. 

(^.  Head  clothed  with  long  yellow  hair. 

9 .  Head  nearly  glabrous,  shining,  punctured,  with  a  large,  obtuse  eleva- 
tion on  the  vertex. 

California;  Mojave  Region,  Mr.  Crotch.  Nearly  allied  to  the  next  species 
but  more  coarsely  sculptured.  The  head  of  the  male  is  retracted  to  such 
an  extent  that  I  cannot  see  distinctly  whether  it  is  excavated  or  flat,  but  I 
think  the  latter  is  the  case. 

13.  P.  nitidulus.  Bostrichus  nit.  Mann.,  Bull.  Mosc,  1843,  298;  1846, 
359;  Cryphalus  nit.  Lee,  Trans.  Am.  Phil.  Soc.  1868,  157;  C.  atraiulus 
Lee,  ibid.,  156;  't  P.  cribripennin  Eichhoft',  Berl.  Enl.  Zeitsch.  1868,  274; 
ibid.,  1871,  137. 

(^.  Head  flat,  finely  punctured,  not  opaque;  clothed  with  long,  erect 
yellow  hairs. 

9  .  Head  much  less  hairy;  elytra  more  retuse  behind. 

Alaska  and  California.  Examination  of  a  larger  series  of  specimens  indi- 
cates that  the  synonym  was  founded  upon  a  slight  individual  variation  in 
the  form  of  the  prothorax.     Length  2  mm.;  .08  inch. 

14.  P.  puncticollis.  Cryphalus  punct.  Lee.  Trans.  Am.  Ent.  Soc.  1874, 
71. 

California,  one  (^.  Closely  related  to  P.  nitiduhis,  and  with  the  same 
sexual  ditferences,  but  much  smaller,  and  of  a  reddish  brown  color,  with 
the  rows  of  punctures  on  the  elytra  more  distant,  and  a  little  finer.  Length 
1.5  mm.;  .06  inch. 

15.  P.  lautus  Eichhoft;  Berl.  Ent.  Zeitschr,  1871,  135. 

A  very  small  specimen  from  Texas  closely  resembles  P.  puncticollis,  but 
the  asperities  of  the  prothorax  are  arranged  in  four  or  five  transverse  rows; 
the  punctures  of  the  rows  of  the  elytra  are  larger,  and  the  rows  are  better 
defined;  the  declivity  as  in  that  species  is  retuse,  and  deeply  sulcate  along 
the  suture.     Length  1.5  mm.  .06  inch. 

16.  P.  puberulus  Oryplialus  pub.  Lee,  Trans.  Am.  Ent.  Soc.  1868,  157. 
One  9,  District  of  Columbia;  Mr.  Ulke.  Easily  known  by  the  very  small 

size  and  erect  pubescence.  The  elytra  are  finely  and  densely  punctulate, 
and  not  retuse  behind,  though  the  sutural  stria  is  deeply  impressed.  Length 
less  than  1.5  mm.;  .06  inch. 


•LeConte. 


TOMICINI.  355 


17.  P.  digestus.  CrypJmkis  dig.  Lee,  Trans.  Am.  Ent.  Soc.  1874,  171. 
Mojave  Desert,  Calitornia;  Mr.  Crotch.  Eleven  specimens  without  sexual 

■tlifferences,  all  having  the  head  punctured  and  finely  carinate.  The  elytra 
lire  confusedly  punctured,  but  the  punctures  have  a  tendency  to  form  rows; 
they  are  not  retuse  behind,  but  the  sutural  stria  is  deeply  impressed.  Length 
1.7  mm.;  .07  inch. 

18.  P.  comatus.  CrypturgusXcom.  Zimm.,  Trans.  Am.  Ent.  Soc.  1868, 
143. 

South  Carolina;  Dr.  Zimmermann.  The  specimen  is  a  ^J',  and  has  the 
head  nearly  smooth,  broadly  and  deeply  concave,  thinly  fringed  with  not 
very  long  yellow  hair.  The  species  is  easily  recognized  by  the  large  ellip- 
tical patch  of  yellow  hair  each  side  of  the  prothorax,  and  hy  the  fine  dis- 
tant rows  of  elytral  punctures;  the  declivity  is  not  retuse,  and  the  sutural 
stria  is  deeply  impressed.  The  club  of  the  antennae  is  divided  by  three  dis- 
tinct straight  sutures.  I  am  not  certain  of  the  number  of  divisions  in  the 
outer  part  of  the  funicle.     Length  1.8  mm.;  .07  inch. 

It  is  possible  that  P.  infans  Eichhoff,  Berl.  Ent.  Zeitsch,  1871,  135,  may 
be  the  9  of  this  species.  It  is,  however,  unknown  to  me,  and  I  have  seen 
nothing  that  corresponds  with  the  description. 

HYPOTHENEMUS  Westwood. 

The  species  I  refer  to  this  genus  agree  in  having  the  outer  part  of  the 
■funicle  of  the  antenufe  very  short,  shorter  in  fact  than  the  first  joint,  and 
very  indistinctly  divided;  in  the  first  species  only  by  one  transverse  suture; 
but  in  H.  dissimilis,  the  divisions  seem  more  numerous,  probably  three, 
but  so  indistinct  that  they  are  without  value.  The  head  is  larger  and 
more  exserted  than  in  the  preceding  genera;  eyes  narrowly  emarginate ; 
the  club  of  the  antenna;  is  round,  compressed,  moderate  in  size,  and  di- 
vided by  straight  sutures  on  both  sides.  The  tarsi  are  distinctly  5-jointed, 
the  third  joint  rather  longer  than  the  first  or  second;  the  fourth  small  as 
usual;  fifth  elongate.  The  tibiae  are  distinctly  serrate  towards  the  tip.  The 
declivity  of  the  elytra  is  not  retuse  or  sulcate. 

A.  Body  cylindrical,  asperities  of  prothorax  acute  and  numerous. 
Brown,  hairs  stout,   clavate,  erect,  finely  striate  like  the 

spines  of  some  Echini 1.  hispidulus. 

B.  Body  stouter,  prothorax  more  rounded,  with  fewer  and  larger  asperities. 

Hairs  erect  stout,  clavate 2.  erectus. 

Hairs  slender,  longer 3.  dissimilis. 

C.  Body  elongate;  prothorax  with  scarcely  any  asperities. 

Elytra  very  strongly  punctate-striate 4.  striatus. 

1.  H.  hispidulus.  Cryphalus  hisp.  Lee,  Trans.  Am.  Ent.  Soc.  1868, 
156. 

Middle  and  Southern  States.  Exactly  resembles  in  appearance  H.  erudi- 
tus  w.w.  (specimens  of  which  I  owe  to  the  kindness  of  Professor  West- 
wood),  but  is  ratlier  larger,  and  the  head  and  prothorax  are  dark  piceoua, 


356  SCOLYTID^. 


[LeConte^ 


like  the  elytra.     It  varies  much  in  size,  one  specimen  from  Florida  being 
scarcely  larger  than  H.  eruditus.     Length  1-1.5  mm. ;  .04-. 06  inch. 

This  is  probably  Stephanoderes  se?'iatus  Eichhoff,  Berl.  Ent.  Zeitsch. 
1871,  133;  but  the  head  is  not  retracted  into  the  prothorax.  There  are  6-8 
small  teeth  on  the  apical  margin,  just  as  in  H.  eruditus. 

2.  H.  erectus,  n.  sp. 

Elongate-oval,  rather  robust,  brown,  thinly  clothed  with  short  pubes- 
cence, which  is  stout  and  erect  especially  near  the  tip  of  the  elytra.  Head 
large,  exserted,  opaque;  with  a  somewhat  sericeous  lustre  from  extremely 
minute  striae  ;  front  flattened.  Prothorax  not  longer  than  wide,  very 
convex,  rough  in  front  with  a  few  large  acute  elevations,  general  surface 
finely  punctured.  Elytra  blackish,  with  lightly  punctured  strige  becoming 
deeper  towards  the  sides.  Antennte  and  legs  j-ellowish.  Length  1.7  mm. ; 
.07  inch. 

Two  specimens,  Texas  ;  Belfrage.  This  species  closely  resembles  the 
next,  and  only  differs  by  the  shorter  and  stouter  hairs  of  the  elytra,  which 
are  almost  as  in  H.  eruditus.  There  are  not  more  than  ten  or  twelve  acute 
tubercles  on  the  front  part  of  the  prothorax  ;  and  there  are  two  small 
approximate  teeth  on  the  apical  margin  itself 

It  is  quite  possible  that  this  is  Stephanoderes  Chapuisii  Eiclihoflf,  Berl. 
Ent.  Zeitschr.  1871,  133  ;  but  the  head  is  not  retracted  into  the  prothorax, 
as  required  by  the  generic  descrij)tion. 

3.  H.  dissimilis.  Grypturgus  diss.  Zimm.,  Trans.  Am.  Ent.  Soc, 
1868,  144. 

Lake  Superior  to  Georgia.  Larger  and  stouter  than  the  preceding,  with 
the  pubescence  longer  and  finer  ;  the  apical  margin  of  the  prothorax  has 
two  approximate  erect  teeth.  I  observe  no  sexual  differences  in  the  seven 
specimens  examined.     Length  2  mm.;  .08  inch. 

The  size  and  specific  characters  agree  moderately  with  those  of  Crypha 
lus  robustus  Eichhoff,  loc.  cit.,  1861,  130. 

4.  H.  striatus  Gryphalus  str.  Lee,  Trans.  Am.  Ent.  Soc.  1868,  156. 
California,  Lower  and  Upper,  and  Illinois.      Resembles  somewhat,   in 

appearance,  the  Azorian  genus  LipartTirxim,  but  differs  by  the  tarsi  having 
the  joints  1-3  equal  and  distinct. 

rj*.  Head  punctured,  with  a  large  transverse  frontal  elevation. 

9  .  Head  punctured,  with  a  small  round  frontal  fovea. 

Group  II.    Xyloteri. 

The  insects  of  this  group  are  rather  robust  and  cylindrical  ;  the  declivity 
of  the  el5^tra  is  oblique,  not  excavated  and  not  toothed.  The  eyes  are 
completely  divided,  and  the  club  of  the  antennae  is  oval,  solid,  pubescent 
on  both  sides,  and  not  annulated.  The  tibiae  are  broad,  rounded  at  tip, 
and  serrate  on  the  outer  and  terminal  edge.  The  tarsi  are  slender,  the 
fourth  joint  small,  as  usual,  and  the  fifth  long,  with  simple  divergent 
claws.  The  species  bore  deeply  into  the  wood  of  the  trees  they  attack, 
thus  injuring  the  timber  much  more  than  the  subcortical  Toinici. 


LeConte.]  TOMICINI.  857 

XYLOTERUS  Er. 

In  this  geuus  tlie  club  of  the  antenn®  is  oval,  compressed  and  solid, 
Avithout  articulations  ;  the  basal  shining  corneous  part  extends  forwards  in 
a  narrow  band  as  far  as  the  middle,  except  in  X  politus,  where  it  is  entirely 
basal,  and  the  club  is  indistinctly  divided  by  one  round  suture  ;  the  rest  of 
the  surface  is  opaque,  finely  pubescent  and  sensitive.  The  funicle  is  com- 
posed of  two  parts,  as  in  the  two  preceding  genera  ;  the  first  joint  is  large, 
and  stout  as  usual,  the  remaining  part  is  about  equal  in  length,  forming 
a  pedicel  to  the  club,  and  is  divided  by  two  not  well  marked  transverse 
sutures,  thus  causing  the  funicle  to  be  4-jointed.  The  eyes  are  moderately 
finely  granulated  and  completely  divided.  The  head  is  large,  exserted, 
and  in  the  (iJ^  is  deeply  concave.  The  prothorax  is  broader  than  long,  and 
strongly  asperate  in  front  in  the  9 .  l^ss  so  in  the  (^.  The  tibire  are 
dilated,  finely  serrate  on  the  outer  edge,  rounded  at  tip,  and  very  feebly 
mucronate  at  the  inner  angle  ;  the  tarsi  have  the  joints  1-3  rather  stout, 
nearly  equal  in  length  ;  fourth  very  small,  fifth  slender,  as  long  as  the 
second  and  third  united,  with  simple  divergent  claws.  The  hairs  are  not 
serrate  or  verticillate,  as  in  Pityophthorwi,  but  slender  and  smooth. 

The  four  species  in  our  fauna  are  easily  recognized: 
lElytra  with  well  defined  strite  of  punctures,  interspaces 

nearly  smooth 2. 

Elytra  with  ill-defined  distant  rows  of  punctures,  inter- 
spaces equally  strongly  punctured,    pubescence 

erect,  abundant 4.  politus. 

2.  Prothorax  finely  and  sparsely  punctured  at  the  sides 

towards  the  base 1.  retusus. 

Prothorax  finely  but  less  sparsely  punctured  at  the 

sides  towards  the  base 2.  bivittatus. 

Prothorax  scabrous  and  granulate  behind  the  middle  3.  scabricollis. 

1.  X.  retusus  Lee,  Trans.  Am.  Ent.  Soc.  1868,  158. 

Canada  one  (^.  It  is  quite  possible  that  this  is  only  an  extraoi-dinarily  de- 
veloped specimen  of  the  next,  but  as  I  have  seen  no  intermediate  forms,  I 
would  suggest  that  for  the  present,  it  be  retained  as  a  distinct  species.  It  is 
•of  larger  size,  (4-5  mm.;  .18  inch),  rather  stouter,  with  the  prothorax  more 
■suddenly  declivous,  and  distinctly  retuse  in  front,  and  less  punctured  on  the 
:8ides  behind  the  middle.  Otherwise  the  ditferences  are  chiefly  in  color, 
which  is  of  no  value  in  this  genus. 

3.  X.  bivittatus  Mannh.,  Bull.  Mosc.  1853,  236;  Ajjate  biv.  Kirby,  Faun- 
Bor.  Am.  iv,  193,  pi.  8,  f.  5;  Bostrtchus  cavifrons  Mannh.,  Bull.  Mosc. 
1843,  297  {(^)\  ibid.  1852,  359;  Xyloterus  cm.  Mannh.,  ibid.  1852,  385. 

Maine,  Canada,  Alaska,  Vancouver  Island.  Length  3-3.3  mm.;  .12-.  13 
inch.  Varies  greatly  in  color.  Usually  the  front  part  of  the  prothorax,  the 
•suture  and  the  margin  of  the  elytra  are  black:  someti'ues  only  a  short,  pale 
stripe  is  seen  on  e  ich  elytron. 


358  SCOLYTID^. 


[LeConte. 


3.  X.  scabricollis  Lee.  Trans.  Am.  Ent.  Soc.  1868,  158. 

District  of  Columbia,  one  J^;  Mr.  Ulke.  This  species  has  entirely  the 
form  and  sculpture  of  X  bivittatus,  except  that  the  prothorax  instead  of 
being  punctured  behind  the  middle,  is  covered  with  flat  granules,  produced 
by  anastomosing  rugae,  and  the  front  part  is  as  rough  as  in  the  9  of  X  bi- 
vittatus. The  stri*  of  punctures  on  the  elytra  are  also  deeper,  and  the  color 
is  different;  the  head  and  elytra  are  piceous,  and  the  prothorax  dull,  ferru- 
ginous; the  antennae  and  legs,  as  usual,  are  yellow  testaceous.  Length  3.5 
mm. ;  .14  inch. 

4.  X.  politus  Say,  Journ.  Ac.  Nat.  Sc.  v,  356  (Bostrichus);  ed.  Lee. 
ii,  318;  Lee,  Trans.  Am.  Ent.  Soc.  1868,  159. 

Massachusetts  to  Kansas  and  Georgia.     Length  3.3  mm.;  .13  inch. 

I  have  received  specimens  from  Mr.  J.  A.  Lintner,  as  depredating  upon 
maple  trees.  Easily  known  by  being  more  hairy  than  the  other  species, 
with  the  interspaces  of  the  elytra  sparsely  punctured,  so  that  the  rows  of 
punctures  appear  confused.  I  observe  no  sexual  dilierence  in  the  specimens 
before  me,  and  the  species  may  readily  be  separated  as  a  distinct  genus,  by 
any  one  who  will  avail  himself  of  the  characters  in  the  antennal  club, 
which  I  have  pointed  out  above. 

X.  unicolor  Eichhoff,  Berl.  Ent.  Zeitschr.,  1871,  136,  is  unknown  to 
me,  but  seems  to  be  allied  to  X  politus. 

Group  TIL      Xyleborl. 

The  essential  character  of  this  group  is  that  the  club  of  the  antennae  is 
entirely  corneous,  and  not  articulated  (m  the  inner  surface;  on  the  outer 
surface  it  is  also  corneous,  except  towards  the  distal  end,  where  it  is  ob- 
liquely truncate;  the  truncate  surface  is  pubescent  and  sensitive,  and  has 
three  concentric  or  transverse  sutures,  which  indicate  the  other  joints  of 
the  club.  The  scape  of  the  antennae  is  elongate,  and  the  funicle  usually 
distinctly  o-jointed,  though  in  some  species  there  appear  to  be  but  four 
joints.  The  tibiae  are  dilated,  more  or  less  serrate,  and  spinose  on  the  outer 
margin,  with  the  apex  obtusely  rounded,  and  the  inner  angle  not  very 
strongly  unguiculate.  The  tarsi  are  slender;  fourth  joint  small,  fifth  nearly 
as  long  as  the  others  united;  claws  strong,  divergent,  simple. 
Sensitive  surface  of  antennae  concentrically  annulated...  XYLEBORUS. 
Sensitive  surface  of  antennae  with  straight,  transverse 

sutures DRYOCCETES. 

XYLEBORUS  Eichhoflf. 

A.  Body  stout,  cylindrical;  declivity  of  elytra  oblique,  scarcely  flattened; 
funicle  of  antennae  with  four  distinct  joints;  tibiae  finely  serrate  on  the  dis- 
tal half  of  their  length,  and  rounded  at  tip. 

Declivity  of  elytra  without  elevated  granules 2. 

"  "        with  a  few  acute     "     1.  tachygraphus. 

2.  Cylindrical,  rather  elongate 2.  pyri. 

Very  stout,  oval  cylindrical 3.  obesus. 


LeConte.]  TOMICINI.  359 

B.  Body  elongate,  cylindrical;  declivity  of  elytra  oblique,  frequently  re- 
tuse  or  excavated;  funicle  of  antennae  with  five  distinct  joints;  tibise  rounded 
at  tip,  and  finely  serrate,  except  in  the  species  under  6. 

Declivity  of  elytra  flattened ;  tibiae  finely  serrate..  2. 

"  "  deeply  impressed  along  the  su- 
ture, tibise  more  coarsely  serrate,  not  rounded 
at  tip 6. 

2.  Declivity  with  a  few  prominent  tubercles 3. 

"        with  rows  of  small  granules 6. 

3.  Prothorax  deeply  impressed  in  front 4. 

"  not  impressed;  declivity  with  two  acute 
tubercles  each  side,  and  some  smaller  marginal 
ones 4.  celsus. 

4.  Declivity  with  one  large,  acute  tubercle 5.  fuscatus. 

"        with  a  few  prominent  acute  tubercles. ...        6.  biogrraphus. 
"  "   but  two  very  small  granules 7.  retusicollis. 

5.  Declivity  of  elytra  with  four  or  five  granules  on 

the  first,  third  and  fifth  interspaces 8.  xylographus. 

Declivity  of  elytra  with  two  or  three  granules  on 

the  first,  third  and  fifth  interspaces 9.  pubescens. 

6.  Declivity  of  elytra  oblique,  not  sharply  margined. .  7. 

"  "       nearly  perpendicular 8. 

"  "        with  acute  edge 9. 

7.  "  "  "  two  prominent  tubercles, 
and  some  smaller  marginal  ones ;  elytra  strongly 
punctured  in  rows,  interspaces  with  rows  of 

distant  punctures lO.  caelatus. 

Declivity  with  two  prominent  tubercles,  and  some 
very  indistinct  marginal  ones,  elytra  with  rows 
of  rather  distant  punctures '. 11.  impressus. 

Declivity  with  some  marginal  tubercles,  and  two 
discoidal  ones,  with  a  third  subsutural  one,  at 
the  anterior  part  of  the  declivity,  punctures  dis- 
tant, not  arranged  in  rows 12.  spareus. 

8.  Declivity  nearly  perpendicular,  without  discoidal 

tubercles,  sharply  margined,  and  armed  with 
teeth  in  9  >  of  which  the  upper  one  is  hooked; 
obtuse  and  feebly  toothed  in  jf ;  elytra  with 
distant  punctures  not  arranged  in  rows 13.  plagiatus. 

9.  Declivity  nearly  perpendicular,  acutely  margined, 

armed  with  a  small  tooth  near  the  apex,  and  a 
long  hooked  process  near  the  anterior  end. 
Elytra  with  rows  of  feebly  impressed  small 
punctures 14.  hamatus. 

C.  Prothorax  densely  punctured,  not  roughened  in  front,  but  broadly 
flattened,  disc  feebly  and  broadly  sulcate;  tibise  finely  serrate  below,  coarsely 


360  SCOLYTID^. 


[LeConte. 


so  above,   rounded  at  tip;  funicle  of  antennae  stouter,  more  closely  con- 
nected with  the  club. 

Elytra  with  approximate,  ill-defined  rows  of  feeble 

punctures;  declivity  flattened  in  (^  with  a  few 

small  acute  granules;  concave  in  9 .  with  three 

or  four  prominent  tubercles  on  the  obtusely 

elevated  margin 15.  planicoUis. 

I.  X.  tachygraphus,  Zimm.,  Tr.  Am.  Ent.  Soc.  1868,  440. 

Middle  and  Southern  States.  Received  from  Col.  Motschulsky,  under 
the  name  Corthylus  denticulatus. 

3.  X.  pyri  Zimm.,  1.  c.  144;  Scolytus  pyri  Peck.,  Mass.  Agr.  Journal, 
1817,  No.  3;  Tomicus  pyri  Hun-is,  Inj.  Ins.  ed.  ult.  91. 

Eastern  and  Middle  States.     Sometimes  quite  injurious  to  pear  trees. 

3.  X.  obesus  Lee,  Trans.  Am.  Ent.  Soc.  1868,  159. 
Canada  to  Virginia. 

4.  X.  celsus  Eichhoft;  Berl.  Ent.  Zeitschr.  1867,  400 ;  Zimm.,  Tr.  Am. 
Ent.  Soc.  1868,  14.5. 

Middle  and  Southern  States  ;  under  oak  bark. 

5.  X.  fuscatus  Eichhoff,  1.  c,  1867,  400;  Zimm.,  1.  c.  1868,  145. 

Virginia  to  Texas  :  under  oak  bark.  The  nearly  allied  species  men- 
tioned by  me  as  occurring  under  pine  bark  in  Georgia  seems  not  to  diflFer 
specifically  from  X  impressus  mentioned  below. 

6.  X.  biographus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  160. 
One  specimen,  Illinois. 

7.  X.  retusicollis  Zimm.,  Tr.  Am  Ent.  Soc.  1868,  146. 
One  specimen,  Maryland  ;  under  oak  bark. 

8.  X.  xylographus  Zimm.,  Tr.  Am  Ent.  Soc.  1868,  145;  Bostrichus 
xylogr.  Say,  Journ.  Ac.  Nat.  Soc.  Phil,  v,  356;  ed.  Lee.  ii,  318  :  X  pint 
Eichhoff",  Berl.  Ent   Zeitschr.  1867,  401. 

Atlantic  and  Pacific  districts  ;   under  pine  bark  ;  abundant. 

9.  X.  pubescensZimm.,  Tr.  Am.  Ent.  Soc,  1868,  145. 
Middle  and  Southern  States. 

10.  X.  caelatus  Zimm.,  Tr.  Am.  Ent.  Soc.  1868,  146;  Tomicm  ccel. 
Eichhoff",  Berl.  Ent.  .Zeitchr.  1867,  403;  X.  vicinus  Lee,  Tr.  Am.  Ent. 
Soc.  1874,  73. 

Canada  to  Texas  and  California.  In  this  and  the  four  following  species  the 
sensitive  annulated  surface  of  the  club  is  larger  than  in  the  preceding  species, 
and  the  tibiae  are  more  strongly  serrate.  The  specimens  from  the  Pacific 
Coast  do  not  differ  sufficiently  to  warrant  their  being  known  as  a  distinct 
species. 

II.  X.  impressus  Eichhoff",  Berl.  Ent.  Zeitschr.  1867,  400. 
One  specimen,  Georgia  ;  under  pine  bark. 

13.  X.  sparsus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  160. 
Canada  and  Lake  Superior. 


LeConte. 


TOMICINI.  361 


1:5.  X.  plagiatus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  161. 

Maryland ;  Mr.  Ulke  ;  this  species  is  remarkable  for  the  se.xual  diflfer- 
cnces.  The  declivity  of  tlie  elytra  is  oblique,  and  the  surface  is  without 
tubercles,  but  the  sutural  stria  is  deeply  impressed;  in  the  J*  there  are  two  or 
three  small  acute  granules  on  the  obtusely  rounded  margin  of  the  declivity, 
but  in  the  9  t'lese  are  much  more  prominent,  and  the  anterior  one  near 
the  suture  is  hooked. 

14.  X.  hamatus  Lee,  Tr.  Am.  Ent.  Soc.  1874,  80. 

Mojave  Desert,  California.  No  sexual  difference  observed  in  ten  speci- 
mens examined. 

15.  X.  planicollis  Zimm.,  Tr.  Am.  Ent.  Soc.  1868,  145. 
Maryland  and  District  of  Columbia;  two  specimens. 

DRYOOCETES  Eichhoff. 

In  this  genus  the  prothorax  is  not  or  but  slightly  roughened  in  front ;  it  is 
less  prolonged  over  the  head  than  usual ;  the  elytral  declivity  is  oblique, 
hardly  flattened,  not  armed  with  tubercles  ;  tibiae  strongly  serrate.  The 
club  of  the  antennae  is  obliquely  truncate,  with  the  sensitive  surface  divided 
by  transverse  straight  sutuies. 
Larger,  prothorax  strongly  punctured,  not  roughened 

in  front 1.  septentrionis. 

Smaller,     prothorax    strongly    punctured,     slightly 

roughened  in  front 2.  afifaber. 

Smaller,  prothorax  uniformly  densely  granulate,  ely- 
tra with  deeper  strise 3.  granicoUis. 

1.  D.  septentrionis.  Bostrichus  sept.  Mann.  Bull.,  Mosc,  1843,  298  ; 
B.  semicastaneus  Mann.,  ibid.  1853,  358  ;  Xylebovis  i^ept.  Lee,  Tr.  Am. 
Ent.  Soc.  1868,  161. 

Alaska,  Canada,  Virginia  ;  under  pine  bark.     Length  4.4  mm. ;  .17  inch. 

2.  D.  affaber.  BostricJms  aff.  Mann.,  Bull.  Mosc.  1852,  359;  Xylehorm 
aff.  Lee,  Tr.  Am.  Ent.  Soc.  1868,  163. 

Alaska,  British  Columbia,  Lake  Superior.     Length  3.7  mm.;  .11  inch. 

3.  D.  granicollis.  Xyleborus  gran.  Lee,  Tr.  Am.  Ent.  Soc.  1868,  163. 
Pennsylvania  and  District  of  Columbia.     Length  3  mm. ;  .08  inch. 

CRYPHALUS  Er. 

The  species  of  this  genus  are  of  very  small  size,  not  very  slender  form, 
and  clothed  with  erect  stout  bristles  ;  tlte  funicle  is  comi)osed  of  four  joints, 
of  which  the  first  is  larger  and  stouter,  and  the  other  three  form  a  conical 
mass,  thicker  outwardly.  The  club  is  compressed,  rounded-oval,  entirely 
corneous  and  without  sutures  on  the  inner  side,  with  straight  or  curved 
sutures  on  the  outer  side,  eyes  large,  not  emarginate  ;  the  prothorax  has 
but  few  large  acute  tubercles  in  front ;  the  elytra  are  punctured  in  rows, 
and  the  declivity  is  convex,  not  impressed  ;  the  tips  are  conjointly  rounded. 
The  first  and  second  ventral  segments  are  very  large,  the  others  very  short. 
The  tibiai  are  only  slightly  dilated  and  scarcely  perceptibly  serrate. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.    3T 


362  SCOLYTID^. 


fLeConte. 


1.  C.  rigidus,  n.  sp. 

Dark  brown,  somewhat  shining,  of  stout  cylindrical,  somewhat  oval 
form,  clothed  with  rather  long  erect  pale  bristles.  Prothorax  a  little  wider 
than  long,  convex,  anterior  edge  not  toothed,  disc  with  a  few  distant 
acute  tubercles  in  front  of  the  middle,  sparsely  punctured  behind.  Elytra 
punctured  in  rows,  setigerous  punctures  of  the  interspaces  very  small. 
Legs  and  antennae  yellow-brown  ;  club  oval,  hairy,  sutures  curved,  sur- 
face rather  shining.     Length  1  mm. ;  .04  inch. 

(^.  Front  with  a  small  rounded  polislied  excavation. 

Canada,  five  specimens.  Dr.  Horn.  This  species  does  not  agree  very 
satisfactorily  with  the  descriptions  of  European  authors,  and  I  therefore 
venture  to  describe  it  as  new. 

2.  C.  striatulus  Mann.  Bull.  Mosc,  1853,  235,  Alaska,  and 

3.  O.  robustus  Eichhoff,  Berl.  Ent.  Zeitschr.,  1871,  131,  Am.  how". 
are  unknown  to  me. 

Group.  IV.     Tomioi. 

The  species  of  this  group  are  of  cj'lindrical,  but  not  very  slender  form, 
and  are  easily  recognized  by  the  deeply  excavated  elytral  declivity,  which 
is  sharply  margined  and  acutely  toothed.  The  club  of  the  antennae,  as  in 
the  group  Xylehori,  is  entirely  corneous  on  the  inner  face,  but  is  not  ob- 
liquely truncate  on  the  outer  face.  The  sensitive  surface  is  more  or  less 
distinctly  defined,  and  is  divided  by  two  sutures  which  are  more  or  le.ss 
curved  or  angulated  in  our  species,  but  are  described  in  some  European 
species  as  straight,  thus  showing  an  affiliation  with  Dryocates  of  the  prece- 
ding group.  The  tibiae  are  coarsely  serrate,  and  the  tarsal  joints  1-3  are 
rather  stouter  than  in  the  preceding  groups. 

Our  species  represent  but  one  genus,  which  may  be  divided  conveniently 
according  to  the  form  of  the  sutures  of  the  antennal  club. 

TOMIOUS  Latr. 

Sutures  of  antennal  club  strongly  angulated 2. 

First  suture  of  club  nearly  straight,  second  bi- 

sinuate 3. 

Sutures  of  club  nearly  straight 8. 

Sutures  of  club  regularly  curved,  not  angulated . .  9. 

2.  Margin  of  declivity  with  three  teeth  behind  the 

most  prominent  one 1.  calligraphus. 

Margin  of  declivity  with  two  teeth  behind  the 
most  prominent  one,  punctures  and  inter- 
spaces regular 2.  cacographus. 

Margin  of  declivity  with  two  teeth  behind  the 
most  prominent  one,  punctures  and  inter- 
spaces confused 3.  confusus. 

Margin  of  declivity  with  but  one  tooth  behind  the 

most  prominent  one 4.  plastographus. 


LeConte. 


TOMICINI.  363 


3.  Margin  of  declivity  witli  three  prominent  teeth 

each  side 4. 

Margin  of  declivity  with  but  two  prominent  teeth, 

the  posterior  longer,  emarginate  at  tip 5.  emarginatus. 

4.  Cusps  of  the  teeth,  separate,  acute 5. 

Anterior  teeth  united,  front  cusp  rectangular 6.  rectus. 

0.  Elytral  striae  composed  of  larger   more   distant 

punctures 6. 

Elytral  striae  composed  of  smaller  approximate 

punctures 7.  pini. 

6.  Interspaces  with   rows  of  distant  punctures  ex- 

tending nearly  to  the  base 7. 

Interspaces  with  punctures  only  near  the  declivity         8.  hudsonicus, 

7.  Punctures  of  striie  moderately  distant 9.  interr-uptus. 

"  "      more  distant 10.  tridens. 

8.  Smaller,  last  tooth  small,  acute  11.  avulsus. 

Last  tooth  long  and  slender,  declivity  more  deeply 

concave 12.  latidens 

9.  Elytra  more  densely  punctured,  and  scarcely  in 
rows,  posterior  declivity  less  concave,  with  the 

lower  tooth  long  and  prominent 13.  concinnus. 

1.  T.  calligraphus  Grerm.,  Ins.  Nov.  461  ;  BoKtrichus  exesus  Say, 
Journ.  Ac.  Nat.  Sc.  v.  355  ;  ed.  Lee.  ii.,  317  ;  Zimm.,  Trans.  Ent.  Soc. 
1868,  147;  ?  Tomicii,s  pnemorsm  Eichhoff,  Bed.  Ent.  Zeitschr.  1867,  401. 

Atlantic  region,  as  far  west  as  New  Mexico.  The  usual  size  is  5  mm. ; 
.20  inch,  but  two  specimens  from  the  locality  last  mentioned  measure  6.4 
mm.;  .25  inch.  The  sutures  of  the  club  resemble  figure  1,  Ferrari,  p.  44, 
and  are  quite  like  those  of  the  European  T.  stenograpkus  ;  which  diHers 
by  its  larger  size,  more  coarsely  punctured  prothorax,  and  especially  by 
having  but  two  teeth  on  the  edge  of  the  elytral  declivity  behind  the  most 
prominent  tooth. 

For  the  purpose  of  making  the  distinctions  between  the  species  mentioned 
below  more  intelligible,  I  will  describe  the  arrangement  of  the  teeth  in 
this  species,  in  which  the  number  is  greatest.  The  declivity  is  deeply  con- 
cave, polished,  sparsely  punctured,  and  the  prolongation  of  the  sutural 
stria  is  well  impressed.  At  the  posterior  end  of  the  second  interspace  is  a 
small  cusp,  and  a  similar  one  at  the  end  of  the  third  interspace  ;  these  two 
small  cusps  or  denticles  are  not  mentioned  in  the  synoptic  table  given 
above.  At  the  end  of  the  fourth  interspace  is  a  large  conical  tubercle, 
which  in  this  species  is  but  slightly  connected  with  the  tubercle  of  the  fifth 
interspace,  which  is  always  the  most  pronUnent.  Behind  this  prominent 
one  there  are  in  the  present  species  three  acute  equidistant  teeth,  and  the 
apical  acutely  elevated  margin.  The  disappearance  of  some  of  these  teeth 
in  the  following  species  is  produced  by  their  absorption  in  the  acute  ter- 
minal margin,  which  thus  becomes  longer,  so  that  in  T.  pini  it  extends 
around  fully  one-third  of  the  declivity. 


364  SCOLYTID^.  [LeConte. 

The  dimensions  and  relations  of  tliese  teeth  with  each  otlier,  and  the 
arrangement  of  the  sutures  of  tlie  antennal  club  give  excellent  characters 
for  the  discrimination  of  the  species  ;  and  I  hope  that  the  student  will  have 
no  difficulty  in  recognizing  those  I  have  admitted  in  this  memoir.  The 
descriptions  of  those  named  by  Mr.  Eichhoff  are,  however,  too  indefinite 
for  me  to  venture  to  pronounce  with  certainty  upon  tlieir  affinities  ;  they 
seem,  moreover,  if  I  may  judge  from  the  short  diagnoses,  to  have  been 
unduly  multiplied  upon  individual  differences  of  slight  importance. 

2.  T.  cacographus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  163  ;  Bostrichus 
pini\  Zimm.  (nee  Say),  ibid,  147. 

Soutliern  and  Western  States.  Similar  to  the  preceding,  but  usually  of 
smaller  size,  (3.5-4  mm.;  .14-.16  inch);  the  cusp  of  the  second  interspace 
is  very  small,  and  that  of  the  third  is  wanting  ;  that  of  the  fifth  is  com- 
pressed and  scarcely  more  prominent  than  that  of  the  fourth  interspace 
and  is  somewliat  connected  with  it ;  there  are  but  two  teeth  between 
the  tooth  of  the  fifth  interspace  and  the  terminal  acutely  elevated  margin, 
and  these  teeth  are  all  of  them  less  prominent  than  in  T.  calligrapJius,  in 
.some  specimens  (rj*),  but  equally  prominent  in  others,  9>  those  less  acute 
tlian  in  T.  caligraphus.  The  interspaces  from  the  third  outward  are 
marked  each  with  a  regular  series  of  punctures  behind  the  middle,  whereby 
it  differs  from  the  next  species.  The  club  of  the  antenna?  is  quite  similar  to 
that  of  T.  calUgraphus. 

3.  T.  eonfusus,  n.  sp. 

Quite  like  T.  cacographuf,  except  that  the  elytral  striaj  are  composed  of 
larger  and  more  transverse  punctures  ;  the  punctures  of  the  interspaces  are 
very  distant  as  fer  as  the  middle,  but  become  irregular  and  confused  with 
tlie  strife  behind.  The  teeth  on  the  margin  of  the  declivitj^  are  arranged 
just  as  in  T.  cacographus,  but  are  larger  and  stouter,  and  the  one  of  the 
fifth  interspace  has  a  tendency  to  become  curved  at  the  end.  The  club 
of  the  antennte  as  in  the  two  preceding  species.     Length  4  mm. ;  .16  inch. 

Southern  California  and  Arizona.     I  have  seen  but  three  specimens. 

4.  T.  plastographus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  163. 

Middle  California  and  New  Mexico  ;  two  specimens.  This  species  closely 
resembles  T.  eonfusus  in  the  sculpture  of  the  elytra,  the  interstrial  punc- 
tures being  confused  behind,  but  on  the  inner  interspaces  from  the  third  to 
tlie  fifth  there  are  no  punctures  excopt  near  the  declivity.  The  tooth  of  the 
tburth  inters])ace  is  more  compressed  and  closely  united  with  the  verj' 
prominent  tooth  of  the  fifth  interspace,  which  is  cylindrical  and  obtuse  ; 
there  is  but  one  tooth  between  that  of  the  fifth  interspace  and  the  apical 
elevated  margin,  but  this  is  large  and  conical.  The  sutures  of  the  antennal 
club  are  very  strongly  angulated.     Length  4.5  mm.;  .18. 

5.  T.  emarginatus,  n.  sp. 

Cylindrical,  shining,  blackish  piceous,  sparsely  clothed  with  long  yel- 
lowish hairs.  Head  granulated,  with  two  small  frontal  elevations,  the 
anterior  one  near  the  margin,  which  is  fringed  as  usual  witli  short  yellow 


LeConte.j 


TOMICINI.  365 


hairs.  Prothorax  nearly  one-half  longer  than  wide,  sides  parallel,  base 
broadly  rounded,  margined  only  near  the  side  ;  anterior  half  of  disc 
asperate  with  granules  ;  posterior  half  sti'ongly  and  tolerably  densely 
punctured,  without  distinct  dorsal  smooth  space.  Elytra  with  striae  com- 
posed of  strongly  impressed  transverse  punctures,  interspaces  wide,  1-7 
smooth  except  near  the  declivity,  where  there  are  a  few  punctures  ;  outer 
interspaces  with  punctures  gradually  becoming  confused  near  the  sides  ; 
declivity  deeply  concave,  strongly  and  coarsely  punctured,  with  the 
sutural  stria  deeply  impressed ;  the  teeth  of  the  second  and  third  inter- 
spaces are  small,  but  acute  ;  that  of  the  fourth  is  larger,  conical  and  sub- 
acute ;  that  of  the  fifth  is  large,  compressed  and  emarginate  ;  the  inter- 
val between  it  and  the  apical  elevated  margin  is  wide,  and  in  some  speci- 
mens is  marked  by  a  single  indistinct  cusp  ;  the  apical  margin  is  long,  and 
its  anterior  angle  is  more  prominent  than  usual  ;  the  sutural  angle  is 
slightly  prominent,  as  is  frequently  the  case  in  other  species,  a  character 
of  no  importance.  The  sutures  of  the  antennal  club  are  nearly  straight, 
slightly  bent  forwards  at  the  sides.  Length  6.6  mm. ;  .26  inch. 
Oregon.     Found  in  abundance  by  Lord  Walsingham. 

6.  T.  rectus,  n.  sp. 

This  species  resembles  the  preceding  in  form  and  color  ;  but  is  of  smaller 
size,  and  the  prothorax  is  less  deeply  punctured  behind,  with  a  distinct 
smooth  medial  space.  The  elytral  striae  and  interstrial  punctures  are 
similar,  but  the  teeth  of  the  declivity  are  quite  different ;  the  cusps  of  the 
second  and  third  interspaces  are  small,  but  distinct  and  acute  ;  that  of  the 
fourth  is  broad,  compressed  and  closely  united  with  that  of  the  fifth,  which 
forms  a  prominent  tooth  at  its  posterior  extremity,  the  anterior  extremity 
of  this  conjoined  mass  is  not  acute,  but  barely  rectangular,  and  the  apical 
acute  margin  is  a  rather  large  acute  tooth.  The  body  is  thinly  clothed 
with  long  yellow  hair,  especially  in  front  and  behind.  The  antennal  club 
is  marked  with  three  sutures,  the  first  and  second  curved  at  the  middle, 
bent  forwards  at  the  side,  and  the  third  nearly  straight.  Length  4  mm.; 
.11  inch. 

One  specimen.  New  Mexico  and  two  from  Oregon.  I  should  consider 
these  as  badly  developed  specimens  of  T.  plastographus,  except  for  the  dif- 
ferences in  the  antennal  club. 

7.  T.  pini  Harris,  Inj.  Ins.  ed.  ult.  p.  88,  f.  43  ;  Lee,  Tr.  Am.  Ent.  Soc. 
1868,  163;  BostricTius  pini  Say,  Journ.  Acad.  Nat.  Sc.  Phil,  v,  257;  ed.Lec. 
ii,  219;  T.  prcefrictus  Eichhotf,  Berl.  Ent.  Zeitschr.  1867,  401. 

The  elytral  striae  are  composed  of  small,  transverse  punctures;  the  inter- 
spaces are  wide  and  flat,  and  are  marked  with  only  a  few  punctures  near 
the  declivity;  the  latter  is  deep,  strongly  punctured,  as  in  all  the  preceding 
species,  with  the  sutural  stria  deeply  impressed;  the  tooth  at  the  end  of  the 
second  interspace  is  small,  but  acute  and  distinct;  that  of  the  third  is  want- 
ing; that  of  the  fourth  and  fifth  are  acute,  and  connected  by  an  elevated 
ridge,  behind  them  there  is  one  acute  compressed  tooth,  which  is  scarcely  less 
prominent,  and  this  is  followed  after  a  narrow  interval  by  the  apical  margin. 


366  SCOLYTID^. 


[LeConte. 


The  first  and  second  sutures  of  the  antennal  club  are  broadly  curved  at  the 
middle,  and  bent  forwards  at  the  sides  as  in  the  preceding  species,  T.  rechis- 
Length  4  mm.;  .16  inch. 

Northern  and  Western  part  of  Atlantic  district,  extending  to  Canada  and 
Hudson  Bay  Territory.  Harris,  who  is  good  authority  upon  Say's  species, 
indicates  this  as  the  one  described  by  that  author.  It  is  destructive  to 
Nerthern  pine  forests  in  the  same  manner,  but,  as  far  as  observation  yet 
goes,  to  a  less  extent  than  T.  cacographus  is  in  the  South.  I  have  there- 
fore felt  warranted  in  rejecting  Dr.  Zimmermann's  determination  of  Say's 
species,  and  have  applied  a  different  name  to  the  insect  which  has  caused 
so  great  destruction  to  the  pine  forests  of  the  Southern  States. 

8.  T.  hudsonicus,  n.  sp. 

Specimens  of  a  larger  size  (5  mm.:  .19  in.),  from  Hudson  Bay  Terri- 
tory have  the  elytral  strise  composed  of  much  larger  punctures,  than  in 
T.  pini,  and  the  tooth  of  the  fifth  interspace  has  a  tendency  to  become 
thicker  and  curved.  I  would  be  unwilling  to  designate  it  by  a  separate 
name,  were  it  not  that  the  sutures  of  the  antennal  club  are  not  bent  forward 
at  the  sides,  but  are  nearly  straight. 

9.  T.  interruptus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  164;  Eichhoif,  Berl. 
Ent.  Zeitschr.  1868,  374;  Bostrichus  int.  Mann.,  Bull.  Mosc.  1852,  357. 

Alaska  and  Hudson  Bay  Territory.  The  teeth  of  the  margin  of  the  de- 
clivity are  arranged  as  in  T.  pini,  and  hudsonicus;  the  stria  are  composed 
of  still  larger  punctures  tlian  in  the  latter,  and  the  punctures  of  the  inter- 
spaces extend  forward,  almost  to  the  base. 

10.  T.  tridens  Lee,  Tr.  Am.  Eut.  Soc.  1868,  164;  Eichhoff,  Berl.  Ent. 
Zeitschr.  1868,  274;  Bostrichus  tr.  Mann.,  Bull.  Mosc.  1852,  357. 

The  scutellum  is  described  by  Eichhoff  as  smooth,  but  in  my  specimens 
it  is  as  distinctly  channeled  as  in  the  five  specimens  of  T.  interruptus;  as  in 
fact  it  is  in  all  the  preceding  species  except  T.  caUigraphus  und  marginatus; 
this  channel  is  less  distinct  in  T.  plastographus  than  in  the  others,  but  at 
best,  is  an  illusive  character  of  but  little  worth. 

Alaska,  one  specimen.  Very  similar  to  T.  interruptus,  but  the  punctures 
of  the  elytral  striae  are  larger  and  more  distant,  and  those  of  the  interspaces 
nearly  as  large,  though  less  numerous.  The  head  is  more  finely  granulate, 
strongly  refuse  in  front,  with  a  broad  frontal  groove.  This  character  is  prob- 
ably sexual  rather  than  specific. 

11.  T.  avulsus  Eichhoff,  Berl.  Ent.  Zeitschr.  1867,  402;  Bostrichus  av. 
Zimm.,  Tr.  Am.  Ent.  Soc.  1868,  147. 

Southern  States.  A  much  smaller  species  (2.5  mm.;  .10  inch);  the 
elytral  striae  are  composed  of  close-set  quadrate  punctures;  the  interspaces 
are  wide,  and  as  far  as  the  sixth  have  only  a  few  punctures  near  the  declivity ; 
the  latter  is  more  abrupt  than  in  the  others,  and  nearly  perpendicular,  but 
deeply  concave,  and  coarsely  punctured,  as  usual,  with  the  sutural  stria 
deeply  impressed;  the  tooth  at  the  end  of  the  second  interspace  is  small, but 
well  defined;  that  of  the  third  is  wanting;  those  of  the  fourth  and  fifth  are 


LeConte.] 


TOMICINI.  367 


united  by  a  ridge,  the  angles  of  which  are  very  little  prominent;  the  apical 
ridge  is  long,  and  between  it  and  the  last  mentioned  tooth  is  an  acute  tooth 
which  is  equally  prominent.  The  prothorax  is  nearly  as  long  as  the  elytra, 
more  finely  and  densely  asperate  in  front,  and  more  finely  punctured  behind. 
The  sutures  of  the  antennal  club  are  nearly  straight. 

12.  T.  latidens  Lee,  Tr.  Am.  Ent.  Soc.  1874,  72, 

California,  at  Lake  Tahoe;  Mr.  Crotch.  This  species  is  smaller  (3  mm.; 
.14  inch),  than  T.  pini,  and  of  more  slender  form.  It  is  easily  distinguished 
from  all  the  other  species  by  the  much  more  deeply  concave  declivity  of 
the  elytra;  the  cusp  of  the  second  interspace  is  acute;  the  teeth  of  the  fourth 
and  fifth  are  united  together,  forming  a  ridge  which  has  three  distinct 
cusps,  of  which  the  middle  one  is  more  prominent;  the  tooth  be- 
tween this  ridge  and  the  terminal  margin  is  unusually  prominent.  The 
stria  are  composed  of  deep  close-set  punctures,  and  the  interspaces  are 
marked  with  rows  of  small  punctures.  The  sutures  of  tlie  antennal 
club  are  nearly  straight. 

13.  T.  concinnus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  164;  Bostrichus  cone 
Mann.,  Mosc.  1852,  358. 

Alaska,  three  specimens.  Leugtli  4.2  mm.;  .17  inch.  A  very  distinct 
species,  with  the  elytra  confusedly  punctured;  the  declivity  oblique,  nearly 
flat,  punctured,  with  the  sutural  stria  scarcely  distinct;  the  teeth  are  but 
three  each  side,  of  which  the  anterior  one  is  small,  and  the  third  longer 
and  larger  than  the  second. 

Group  V.     Micracides. 

The  funicle  of  the  antennae  is  6-jointed,  the  outer  joints  broader;  the  club 
is  pubescent  and  usually  marked  with  sutures  on  both  sides,  as  in  the  group 
Gortliyli,  but  these  sutures  are  usually  very  much  curved,  though  some- 
times nearly  straight ;  the  basal  joint  is  long,  and  in  one  sex  is  fringed 
on  the  front  margin  with  very  long  hairs ;  the  eyes  are  transverse, 
coarsely  granulated,  either  distant  or  contiguous  beneath.  The  protho- 
rax is  produced  over  the  head,  rounded  and  asperate  in  front,  and  its 
anterior  opening  is  very  oblique  as  in  most  Pityophthori.  The  elytra 
are  usually  punctured  in  rows,  convexly  declivous  behind,  then  con- 
cave near  the  tip,  and  sometimes  asperate  with  small  granules ;  the 
sutvire  is  produced  into  a  sharp  point,  except  in  T.  fimbricornis.  The  tibiae 
are  compressed,  armed  with  a  terminal  hook,  outer  edge  acute,  not  at  all 
toothed  (or  but  slightly  so  in  M.  rudia),  and  fringed  with  long  hair;  the 
front  pair  are  as  broad  at  base  as  at  tip  ;  the  joints  of  the  tarsi  1-3  are 
rather  stout  in  all  the  species  except  M.  hirtella,  where  they  are  longer  and 
more  slender,  the  fourth  joint  is  small,  and  the  fifth  long,  slender,  with 
divergent  simple  claws.  Although  important  structural  differences  are 
seen  in  the  species,  I  regard  them  as  constituting  but  two  genera.  This 
group  is  excellently  defined  by  the  6-jointed  funicle,  and  the  broad  parallel 
front  tibiae. 


368  SCOLYTID^.  [LeConte. 

Club  pubescent  and  aiinulated  on  botli  sides,  outer  joints 
of  funicle  slightly  broader,  not  fringed  ;  elytra 
aculeate  at  tip MICRACIS . 

Club  sparsely  hairy,  corneous,  without  sutures  on  upper 
surface  ;  with  two  indistinct  sutures  on  the  lower 
surface  ;  outer  joints  of  funicle  transversely  pro- 
duced, fringed  with  long  hairs  ;  elytra  not  aculeate.  THYSANOBS. 

MICRACIS  Lee* 

Sutures  of  club  forming  narrow  curves 2. 

"  "  "       broad  curves 4. 

"  "  ■'       nearly  straight 5. 

2.  Eyes  distant  l)eneath 3. 

Eyes  contiguous  beneath,  elytra  more  finely  punctured, 

clothed  with  very  short  stout  hair 3.  nanula. 

3.  Elytra  nearly  glabrous 1.  suturalis. 

"    clothed  with  short  stout  hair 2.  aculeata. 

4.  Elytra  nearly  glabrous,  with  rows  of  coarse  punctures, 

asperate  near  the  tip 4.  rudis. 

0.  Elytra  sparsely  clothed  with  long  hair,  punctured  iu 

rows,  asperate  behind 5.  hirtella. 

1.  M.  suturalis  Lee,  Tr.  Am.  Ent.  Soc,  1868,  165. 

Illinois,  boring  in  the  branches  of  Xanthoxylon:  Dr.  Henry  Shimer. 
The  club  of  the  antennae  is  more  than  one-half  longer  than  wide;  the  gular 
space  between  the  eyes  is  wide  ;  the  punctures  of  the  elytra  are  fine  and 
arranged  in  numerous  distinct  rows  ;  there  are  a  few  short  hairs  near  the 
tip  in  some  specimens,  but  in  others  even  these  are  wanting.  Length 
2.5  mm. ;  10  inch. 

2.  M.  aculeata  Lee,  ibid.  1868,  165. 

Virginia,  one  specimen.  The  antennal  club  is  of  the  same  form  as  iu 
M.  suturalis,  and  the  eyes  are  as  widely  separated  below  ;  the  elytra  are 
clothed  with  short  sub-erect  yellowish  hairs,  which  are  slightly  clavate  ; 
the  punctures  are  larger  and  denser  than  in  the  preceding,  and  not  ar- 
ranged distinctly  in  rows,  though  owing  to  the  manner  in  which  the  short 
bristles  are  placed  the  interspaces  are  feebly  indicated.  Length  2.7  mm. ; 
.11  inch. 

3.  M.  nanula  n.  sp. 

Slender  cylindrical,  much  smaller  and  narrower  than  the  other  species,, 
brown  ;  antenn*  reddish-brown,  with  the  first  joint  fringed  with  long 
hair  ;  club  but  little  longer  than  wide,  sutures  forming  less  narrow  curves. 
Eyes  contiguous  beneath;  i)rothorax  one-half  longer  than  wide,  nearly 
opaque,  sparsely  and  finely  granulate  behind,  asperate  with  small  acute  dis- 
tant tubercles  in  front  ;  very  thinly  pubescent,  with  short  erect  hair, 
especially  towards  the  sides.     Elytra  somewhat  shining,  feebly  and  indis- 

*  I  have  in  the  synopsis  incorrectly  described  the  funicle  as  .j-jointed. 


LeConte.] 


TOMICINI.  3G9 


tinctly  punctured,  with  numerous  rows  of  short  pale  bristles  ;  posterior 
declivity  convex,  suturaf  point  small,  less  prominent  than  in  the  other 
species.     Length  1.7  mm. ;  .07  inch. 

Haulover,  Florida  ;  Fehruar}',  Messrs.  Hubbard  and  Schwarz.  One 
specimen.  The  eyes  are  more  coarsely  granulated  than  in  the  other  species, 
and  there  is  no  gular  space  between  them. 

4.  M.  rudis,  n.  sp. 

Cylindrical,  proportioned  like  M.  suturalis,  nearly  black,  rather  shining, 
antennte  reddish-brown,  sutures  of  the  club  forming  broad  curves;  first 
joint  with  a  tuft  of  hairs  near  the  tip.  Head  very  deeply  excavated  (almost 
as  in  Xi/loterus  c^) ;  eyes  widelj-  distant  below.  Prothorax  somewhat  longer 
than  wide,  broadly  rounded  in  front,  sides  parallel  behind;  surface  sparsely 
granulate  behind,  rough  with  numerous  tubercles  in  front.  Elytra  scarcely 
pubescent,  rugosely  punctured;  punctures  large,  arranged  in  approximate 
rows;  interspaces  rough  with  small  acule  tubercles  on  the  declivity  which 
is  convex,  except  near  the  tip,  which  is  concave;  sutural  point  well  de- 
veloped.    Length  2.5  mm. ;  .10  inch. 

Detroit,  Micliigan;  Messrs.  Hubbard  and  Schwarz;  one  specimen.  The 
tibia;  are  feebly  toothed  on  the  outer  edge. 

5.  M.  hirtellus,  n.  sp. 

Cylindrical,  of  the  same  form  as  M.  suturalis,  dark  brown,  thinlj^  pubes- 
C3nt  with  fine  yellowish  sub-erect  hair.  Head  flat,  with  a  frontal  tuft  of  hair ; 
eyes  widely  separated  beneath.  Antenna;  with  the  scape  more  densely 
fringed  than  usual;  club  small,  rounded;  sutures  nearly  straight.  Pro- 
thorax  longer  than  wide,  nearly  semicircular  in  front,  densely  but  finely 
granulate  behind;  asperate  with  numerous  sharp  tubercles  in  front,  disc 
feebly  impressed,  and  more  hairy  each  side  of  the  median  line  behind  the 
middle.  Elytra  rugosely  punctured;  punctures  arranged  in  rows;  de- 
clivity rough  with  small  tubercles;  convex,  sutural  point  prominent. 
Length  2.7  mm.;  .11  inch. 

One  specimen  from  Southern  California,  collected  by  Mr.  Hardy  and 
kindlj"  given  me  by  Dr.  David  Sharp.  The  tarsi  are  longer  and  more 
slender  than  in  the  other  species. 

THYSANOES  n.  g. 

This  genus  is  allied  to  Micracis;  the  front  tibiiie  are  of  the  same  parallel 
form,  as  wide  at  base  as  at  tip,  and  not  serrate  on  the  outer  edge;  the  an- 
tennse  are,  however,  quite  different;  the  scape  is  fringed  as  in  Micracis; 
the  first  joint  of  the  funicle  is  longer  than  wide;  thicker  at  the  extremitj^; 
the  remaining  five  joints  are  very  distinctly  separated,  and  become  rapidly 
w^ider  and  transverse,  by  being  prolonged  at  the  upper  side;  thej'  are  also 
fringed  with  very  long  hair;  the  club  is  elliptical,  compressed, rather  shining, 
sparsely  hairy,  without  distinct  sensitive  surface;  without  sutures  on  the 
inner  face,  with  two  indistinct  sutures  on  the  outer  face,  of  which  the  lower 
one  seems  straight,  and  the  distal  one  curved.  The  eyes  are  large,  trans- 
verse, coarsely  granulated,  and  not  emarginate;  they  are  separated  beneath 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  2u 


370  SCOLYTID^. 


[I^eConte. 


by  a  wide  gular  space.     The  first  and  second  ventral  segments  are  very 
large,  the  others  short. 

1.  T.  flmbrioornis,  n.  sp. 

Slender,  cylinttrical,  yellowish  brown.  Head  (^)  shining,  flattened, 
with  a  small  fovea  on  the  vertex.  Prothorax  longer  than  wide,  sparsely 
asperate  in  fi"ont  and  slightly  hairy,  then  not  densely  punctured  for  a  short 
distance,  aid  nearly  smooth  behind  the  middle,  and  at  the  sides.  Elytra 
with  rows  of  small  punctures;  punctures  of  the  interspaces  smaller  and 
more  distant,  and  from  them  proceed  short,  clavate,  pale  bristles  in  regular 
rows;  declivity  convex,  not  at  all  impressed  or  retusc,  sutural  line  very 
slight-  The  eyes  are  transverse,  slightly  emarginate  and  coarsely  granu- 
lated. Front  tibiae  broad  from  the  base,  sides  parallel,  outer  edge  acute,  not 
serrate.     Length  1.8  mm.;  .075  inch. 

Lancaster  County,  Pennsylvania.  Abundant  in  twigs  of  hickory;  easily 
recognized  by  the  characters  given  above.  The  first  and  second  ventral 
segments  are  each  as  long  as  the  others  united;  third,  fourth,  and  fifth  short, 
equal,  last  dorsal  slighlly  visible  from  beneath.  The  bristles  are  not  striate 
as  in  HypotJienemus,  but  finely  granulated. 

Tribe  IL     S€OL,ytini. 

The  species  of  this  tribe  are  easily  known  by  the  peculiar  conformation 
of  the  ventral  surface,  which  is,  namely,  flattened  or  concave,  and  obliquely 
ascending  from  the  posterior  end  of  the  first  segment  to  the  fifth  ;  the  first 
and  second  segments  are  closely  connate,  and  the  other  three  are  separated 
by  straight  sutures,  about  equal  in  length,  and  united  are  hardly  longer 
than  the  oblique  part  of  the  second  segment.  The  antennal  club  is  pubes- 
cent on  both  sides,  nearly  solid  and  marked  with  indistinct  but  strongly 
curved,  or  rather  angulated,  sutures;  the  scape  is  short,  the  first  joint  of 
the  funicle  rounded,  the  remaining  joints  (five  in  number)  closely  united 
forming  a  pedicel  to  the  club.  The  thighs  are  stout,  the  tibiie  rather  broad 
and  compressed;  the  front  pair  are  not  serrate  on  the  outer  edge,  which  is 
(^uite  sharp  ;  the  outer  apical  angle  is  armed  with  a  long  curved  hook,  and 
the  inner  angle  is  nearly  rectangular  but  not  armed  with  a  spine  ;  the  outer 
niai'gius  of  the  middle  and  hind  tibine  are  feebly  serrate,  they  are  truncate 
at  tip,  and  armed  with  two  spines  or  spurs  at  the  outer  angle,  and  a  much 
smaller  spine  at  the  inner  angle  ;  the  tarsi  are  slender,  as  long  as  the  tibiae  ; 
the  third  joint  is  deeply  bilobed,  the  fourth  small,  the  fifth  long,  with 
simple  divergent  claws. 

The  side  margin  of  the  prothorax  is  distinctly  defined,  a  very  rare 
character  in  Rhynchophora,  and  the  front  coxaj  are  separated  by  the  pro- 
sternum,  which  is  very  short  in  front  of  the  coxae.  In  some  of  the  species 
the  ventral  segments  of  the  (^  are  ornamented  with  spines,  or  acute  tuber- 
cles such  as  have  been  already  mentioned  in  Proctoms  (p.  212)  and  Pla- 
typus (p.  343). 

But  one  genus  represents  this  tribe. 


LeConte.] 


SCOLYTINI.  371 


SCOLYTUS   Oliv. 


The  name  of  this  genus  was  first  proposed  by  Geoffroy  in  1763  ;  but  for 
reasons  wliich  I  have  given  in  detail  elsewliere,*  I  prefer  citing  Olivier, 
1789,  for  its  first  proper  use  in  Zoology,  f 

Elytra  with  distinct  stri«  of  close  set  punctures. ...  2. 

Elytra  with  numerous  rows  of  punctures 3. 

2.  Strise  deep,  interspaces  narrow  with  single  rows 

of  fine  punctures  bearing  short  hairs  ;  (abdo- 
men of  (^  with  several  spines) 1.  quadrispinosus. 

Striae  less  deep,   interspaces  wider,  with  single 

rows  of  fine  punctures  ;    (abdomen  of  both 

sexes  without  spines,  coarsely  punctured) ....  2.  fagi. 

Striae  hardly  impressed,   interspaces  wide,  with 

single  rows  of  fine  punctures  ;  (abdomen  (j^ 

with  one  spine  at  the  middle  near  the  basej . .  3.  unispinosus. 
Strife  hardly  impressed,  interspaces  wide  towards 

the  suture  with  confused  small  punctures  ; 

(abdomen  finely  punctured,  third  and  fourth 

ventral  segments  with  very  small  tubercles  at 

the  hind  margin) 4.  californicus. 

3.  Elytra  nearly  glabrous 4. 

Elytra  clothed  with  long  fine  erect  hairs 5.  muticus. 

4.  Abdomen  sparsely  punctured 5. 

Abdomen  densely  punctured,  anterior  face  of  de- 
clivity large,  perpendicular,  margined 6.  prseeeps. 

5.  Punctures  of  elytra  not  larger  towards  the  base..  6. 
Punctures  of  elytra  larger  and  somewhat  scabrous 

towards  the  base 7.  subscaber. 

6.  Second  ventral  segment  not  tuberculate 8.  sulcatus. 

Second    ventral  segment  with  a    small    apical 

tubercle 9.  ventralis. 

1.  S.  quadrispinosus  Say,  Journ.  Ac.  Nat.  Sc.  Phila.  iii,  333,  (cJ*); 
ed.  Lee,  ii,  183;  Lee,  Tr.  Am.  Ent.  Soc.  1868,  165;  S.  carym  Riley,  Prairie 
Farmer,  Febr.  1867;  Walsh,  Practical  Entomologist,  ii,  58;  Lee,  Tr.  Am. 
Ent.  Soc.  (9)  1868,  166;  Riley,  Noxious  Ins.  Missouri,  (1873)  v,  103, 
(d^,  '^);  S.  mw^icits  t  Cliapuis,  (nee  Say,)  Mem.   Soc.Roy.  Sc.  Liege,  1869. 

^.  Head  flat,  longitudinally  finely  aciculate,  fringed  with  long  curled 
hairs;  anterior  part  of  ventral  declivity  very  deeply  concave;  the  margin. 
is  acute,  subsinuate  and  more  or  less  angulated  at  the  middle;  the  concave 
face  of  the  second  segment  is  more  or  less  carinate,  and  nearly  smooth;  the- 

*  On  some  changes  in  the  nomenclature  of  North  American  Coloeoptera, 
which  have  been  recently  proposed.    Canadian  Entomologist,  1874,  p.  185. 

t  The  table  of  species  in  my  memoir  (Trans.  Am.  Ent.  Soc.  1868,  165,)  needs 
some  modification  on  account  of  the  discovery  of  additional  species,  and  the^ 
sexual  characters  of  some  of  those  already  described. 


372  SCOLYTID^. 


[LeCoiite. 


lateral  angles  ar3  slightly  produced  into  short  spines;  the  next  segment  has 
three  spines,  which  are  sometimes  very  long,  sometimes  short;  the  fourth 
segment  is  concave,  rounded  and  strongly  margined  behind,  sparsely  punc- 
tured, and  has  a  more  or  less  distinct  tubercle  at  the  middle  of  the  hind 
margin;  the  fifth  segmsnt  is  very  short,  and  retracted,  visible  only  from 
behind. 

9-  Head  less  flattened,  punctured  at  the  sides,  aciculate  only  at  the  mid- 
dle, thinly  clothed  with  long  hair;  anterior  face  of  ventral  declivity  flat- 
ten'id,  margined,  nearly  perpendicular,  sparsely  punctured;  remaining  seg- 
ments flat,  strongly  punctured;  fifth  rounded  behind,  as  long  as  the  third  and 
fourth  united. 

New  York,  Georgia,  Kansas,  Missouri;  for  an  excellent  series  bred  from 
hickory  trees,  I  am  indebted  to  Mr.  Riley.  Length  4-5  mm. ;  .16  -.20  inch. 

2.  S.  fagi  "Walsh,  Practical  Entomologist,  ii,  58,  (J*,  ?);  Lee,  Tr.  Am. 
Ent.  Soc.  1868,  166. 

(^.  Head  flattened,  punctured,  densely  clothed  with  long  erect  hairs; 
ventral  surface  strongly  punctured,  more  sparsely  in  front;  declivity  mar- 
gined, nearly  perpendicular;  fifth  segment  as  long  as  the  third  and  fourth 
longitudinally  impressed. 

9.  Head  more  convex,  less  hairy;  the  ventral  segments  more  strongly 
punctured. 

Illinois,  one  pair.  Length  5.5  mm.;  .33  inch.  Depredates  upon  beech 
trees,  according  to  Mr.  Walsh. 

3.  S.  unispinosus,  n.  sp. 

Cylindrical,  shining  black,  head  aciculate,  thinly  clothed  with  long  erect 
hairs.  Pr^thorax  a  little  longer  than  wide,  sides  rounded  and  feebly  con- 
stricted in  front,  finely  and  not  densely  punctured.  Elytra  with  feebly  im- 
pressed striae  composed  of  small  punclures;  interspaces  with  single  rows  of 
much  smaller  punctures.  Ventral  declivity  feebly  punctured;  anterior 
edge  somewhat  prominent,  but  obtuse  at  the  middle;  a  long  obtuse  spine 
projects  from  the  middle  of  the  nearly  perpendicular  face;  fifth  segment 
hardly  longer  than  the  fourth,  concave,  rounded  and  strongly  margined 
behind.     Length  3.3-3.7  mm.;  .09-.  13  inch. 

Two  specimens,  Oregon.  The  head  is  more  flattened  in  one  than  in  the 
other,  but  I  observe  no  other  indication  of  sexual  diff"erence.  The  antennte 
are  ferruginous,  and  the  tarsi  brown,  as  in  the  other  species  of  the  genus. 

4.  S.  californicus  Lee,  Tr.  Am.  Ent.  So3.  1868,  166. 

One  (^,  California;  Mr.  A.  Murray.     Length  4.5  mm.;  .18  inch. 

5.  S.  muticus  Say,  Journ.  Ac.  Nat.  Sc.  Phila.  iii,  333;  ed.  Lee,  ii,  183; 
Lee,  Tr.  Am.  Ent.  Soc.  1868,  166. 

Pennsylvania,  one  (^.  Easily  known  by  the  elytra  with  numerous  rows 
of  strong,  but  distant  punctures,  which  bear  long,  erect,  soft  hairs.  Head 
flat,  finely  aciculate,  sparsely  fringed  with  long  hair.  Ventral  surface 
sparsely  punctured;  declivity  oblique,  margined;  fifth  segment  triangularly 


LeConte.] 


HYLURGINI.  373 


impressed  and  densely  fringed  with  long  liair  behind.     Length  3.8  mm. ; 
.15  inch. 

6.  S.  praeceps,  n.  sp. 

Cylindrical,  black,  shining,  head  thinly  clothed  with  long  erect  hair.pro- 
thorax  scarcely  longer  than  wide,  sides  rounded  in  front  and  feebly  con- 
stricted; surface  deeply  but  finely  and  distantly  punctured.  Elytra  with 
numerous  rows  of  rather  distant  punctures,  and  showing  some  traces  of 
very  fine  strife;  ventral  surface  strongly  punctured  in  front,  densely  aiul 
finely  behind;  declivity  large,  perpendicular,  acutely  marginate;  second 
ventral  segment  faintly  carinate  near  the  tip;  fifth  ventral  concave, strongly 
margined,  as  long  as  the  third  and  fourth  united.   Length  3  mm. ;  .12  inch. 

California,  Calaveras;  Mr.  Crotch.  The  head  of  the  (^  is  more  flattened, 
more  distinctly  aciculate  and  less  punctate  than  in  the  9>  and  is-also  more 
hairy.     Otherwise  I  observe  no  sexual  ditferences. 

7.  S.  subscaber,  n.  sp. 

Cylindrical,  black,  shining,  head  thinly  clothed  with  erect  hairs,  finely 
aciculate  behind,  punctulate  in  front.  Prothorax  a  little  longer  than  wide, 
sides  feebly  narrowed,  and  slightly  constricted  in  front;  apical  margin  and 
sides  distinctly  punctured,  disc  behind  obsoletely  punctulate.  Elytra  with 
the  suture  more  deeply  concave  towards  the  base  than  usual;  marked  with 
faint  traces  of  striae,  and  rows  of  punctures  which  are  very  small  behind, 
but  become  larger  and  elevated  into  granules  near  the  base;  the  apical 
margin  is  concave,  and  densely,  rugoselv  pane  ured  as  usual,  and  very 
feebly  serrate.  Ventral  declivity  flat,  oblique,  scarcely  concave,  feebly 
punctured,  anterior  margin  fine,  not  prominent;  fifth  segment  longer  than 
the  third  and  fourth  united,  slightly  concave;  posterior  margin  acutely 
prominent.     Length  4.2  ram. ;  .17  inch. 

Vancouver  Island,  Oregon  and  California;  three  specimens  without  sexual 
differences. 

8.  S.  sulcatus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  167. 

One  specimen.  New  York.  The  rows  of  punctures  are  alternately  very 
slightly  larger,  so  that  in  certain  lights  there  are  feeble  indications  of  striae, 
but  they  are  not  coarser  near  the  base.     Length  3.7  mm. ;  .15  inch. 

9.  S.  ventralis  Lee,  ibid.  1868,  167. 

Washington  Territory,  George  Gibbs.  Similar  in  sculpture  to  S.  stdcatun, 
but  the  ventral  declivity  is  larger,  the  second  segment  is  armed  behind 
with  an  acute  compressed  tubercle,  and  the  third  and  fourth  segments  are 
more  flattened,  and  less  sparsely  punctured  ;  the  fifth  segment  is  as  long 
as  the  two  preceding  united,  concave,  with  reflexed  posterior  margin. 
Length  4  mm.;  .16  inch. 

Tribe  IIL     hylirgiki. 

In  this  tribe  the  head  is  exposed,  not  covered  by  a  prolongation  of  the 
prothorax  ;  the  latter  is  truncate  in  front  or  but  slightly  rounded,  and  not 
differently  sculptured.     The  antenna)  vary  in  form  according  to  the  group. 


374  SCOLYTID^. 


[LeConte. 


and  in  Hylastes  assume  very  much  the  same  form  as  in  Cossonidce,  to 
which  some  of  these  insects  bear  a  strong  resemblance.  They  may  be  dis- 
tinguished, liowever,  by  the  compressed  and  serrate  or  spinulose  tibite. 

The  tliird  joint  of  the  tarsi  is  frequently  dilated  and  bilobed,  and  the 
four;h  joint,  less  conspicuous  than  in  the  preceding  tribes,  is  sometimes 
quite  indistinct.  The  first  and  second  ventral  segments  are  always 
separated  by  a  well-defined  straight  suture,  more  deeply  impressed  tlian  in 
Tom'cini. 

The  prothorax  is  bisinuate  behind,  with  a  well  defined  antescutellar 
angle  in  some  of  the  species  of  all  the  groups  except  Hylastes.  They  thus 
manifest  a  tendency  to  the  Aiitliribidce  [Choragus,  &c.),  as  Hylastes  does 
towards  the  Cossonidce. 

In  several  genera  the  front  coxie  are  separated  by  the  prosternum,  and 
i;i  Dendroctonus  and  the  allied  European  genera  Hylitrgios  and  Blastopha- 
giis  the  second  and  third  ventral  sutures  are  curved  backwards  at  the  sides. 
In  Hylastes  the  prosternum  is  deeply  excavated  for  the  reception  of  the 
short  beak.  In  all  these  characters  resemblances  are  seen  to  different 
tribes  of  Gurculionidw. 

Our  genera  indicate  the  following  groups  : 
Club  oval,  annulated,  scarcely  compressed S. 

"    strongly  compressed,  not  annulated,  pubescent  on  both 

sides Polysrraphl. 

2.  Joints  of  club  separated Pttloeotribl. 

• '  "    closely  connate,  as 'usual 3. 

3.  First  and  fifth  ventral  segments  elongated,  scutellum  not 

depressed ■*• 

Ventral  segments  nearly  equal  and  scutellum  depressed H y  inrg'i. 

4.  Prosternum  very  short,  funicle  with  few  joints Cryptiirgl. 

Prosternum  excavated  ;  funicle  7-jointed Hy :astes. 

Group  I.     i*olyg^raphi. 
This  group  is  sufficiently  defined  by  theclubof  the  antennae  being  large, 
strongly  compressed,  pubescent  and  sensitive,  and  without  sutures  on  both 
sides,  and  by  the  antennie  being  inserted  as  usual  at  the  sides  of  the  front. 
The  tibite  are  broadly  dilated,  obliquely  rounded  at  the  apex,  and  finely 
S3rrate  ;  th^  third  joint  of  the  tarsi  is  not  bilobed,  and  the  fourth,  though 
small,  is  distinct.     The  basal  margin  of  the  elytra  is  acute  and  serrate. 
Two  genera  occur  in  our  fauna  : 
Eyes  slightly  emarginate,  funicle  attached  at  the 

side  of  the  club,  outer  joints  slender OHRAMESUS. 

Eyes  completely  divided,  funicle  attached  at  the 

end  of  the  club,  ou'er  joints  gradually  stouter  POLYG-RAPHUS. 

OHRAMESUS  Lee. 
Rhopalopleums  Chap. 
B  )dy  stout,  oval,   convex,   clothed   with  small  scales  and   stout,  erect 
bristles,  whic'i  are  not  striate  as  in  Hypothenemus  liispidulus  (p.  355). 


LeCont.e.] 


HYLURGINI.  375 


Head  but  slightij^  prolonged  in  front  of  the  eyes,  which  are  large  trans- 
verse, rather  finely  granulated,  slightly  eniarginate  at  the  insertion  of  the 
antenna;.  Antennse  inserted  at  th3  sides,  scape  long,  slender,  curved, 
fuaicle  5-jointed,  first  joint  stouter,  a  little  lo.iger  than  wide  ;  2-~)  slender, 
closely  united,  attached  to  the  side  of  the  club,  which  is  very  large  and 
strongly  compressed,  pubescent  on  bolh  sides,  not  marked  with  sutures  ; 
the  lower  edge  is  nearly  straight,  the  upper  is  curved  and  sinuate,  and 
each  end  is  obtusely  rounded.  Ventral  surface  moderately  convex,  sutures 
straight,  well  impressed,  first  and  second  segments  a  little  longer.  Tibiae 
dilated,  finely  serrate  on  the  outer  side  and  at  the  tip,  which  is  broadly 
rounded;  apical  spine  at  the  inner  angle  short ;  tarsi  with  joints  1-3  short, 
fourth  small,  but  distinct ;  fifth  as  long  as  the  others  united,  with  large 
simple  divergent  claws. 

Bristles  long,  scales  of  elytra  sparse 1 .  icorise. 

Bristles  short,  scales  dense 2.  Chapuisii. 

1.  O.  icoriae  Lee,  Tr.  Am.  Ent.  Soc.  1868,  168;  Bhopalopleurus  Le- 
contei  Chapuis,  Mem.  Soc.  Roy.  Sc.  Liege,  1869. 

(^.  Head  deeply  concave. 

$  .  Head  flattened,  with  a  feeble  curved  impression. 

Middle  and  Western  S;ates,  in  hickory  twigs.  The  present  is  an  excel- 
lent example  of  the  uncertainty  of  entomological  descrip.ions.  In  the 
memoir  above  cited,  I  described  the  funicle  as  having  but  one  distinct 
joint,  "the  remaining  joints  are  obsolete,  and  visible  only  as  a  corneous 
ridge  on  the  upper  edge  of  the  base  of  the  club,"  which,  in  fac  ,  was  the 
appearance  presented  by  all  the  specimens  in  my  cabinet.  But  on  receiv- 
ing the  memoir  of  my  friend.  Dr.  Chapuis,  suspecting  that  I  might  have 
made  an  error  by  neglecting  to  observe  the  antennae  in  all  directions,  I  re- 
laxed some  specimens,  and  was  greatly  pleased  to  find  that  tlie  very  extra- 
ordinary character  upon  which  he  had  founded  Bhopalopleurus  really 
exis'ed  in  my  species.  The  other  characters  given  in  my  detailed  d. 'scrip- 
tion  above  cited  are,  however,  so  characteristic,  that  the  genus  might  have 
been  recognized,  without  reference  to  the  antennal  funicle;  apart  of  the 
bD:ly,  which,  as  I  h.ive  said  above,  I  believe  to  be  of  bat  little  valuj  in  t'.ie 
classification  of  these  insects.     Length  1.5  mm.;  .03  inch. 

2.  O.  Chapuisii  n.  sp. 

Oval,  robust,  convex,  black,  with  the  antennoe  testaceous,  precisely  as  in 
G.  icoriiB,  and  differing  from  it  only  by  the  interspaces  of  the  elytra  being 
densely  clothed  with  smill  thick  scales,  and  single  rows  of  rather  short 
bristles,  and  by  the  strite  being  narrower  and  finely  creuulate,  instead  of 
coarsely  punctured.     Length  1.5  mm.;  .06  inch. 

One  r^  Louisiana.  The  front  is  triangu'arly  flattened  and  marked  with 
a  fine  curved  line,  at  the  middle  of  which  is  a  small  transverse  fovea. 

POLYGRAPHUS  Er. 

In  this  genus  the  body  is  less  robust,  and  of  the  usual  cylindrical  form, 
narrowed  in  front,  and  rounded  behind,  as  seen  in  HyUilnui.     The  eyes 


376  SCOLYTID^.  [LeConte. 

are  dunded,  aid  tli3  p.irts  connected  by  a  smooth  corneous  line.  The 
scape  of  the  ante-iniB  is  long  and  strongly  clavate ;  the  funicle  is  5- 
jointed,  the  first  joint  stout,  as  long  as  the  others  united  ;  2-5  gradually  in- 
creasing in  thickness,  short,  closely  united,  forming  a  conical  mass,  to  which 
the  club  is  attached  at  the  upper  extremity  of  its  base  ;  the  latter  is  strongly 
compressed,  puljescent,  and  witliout  sutures  on  both  sides  ;  oval-pointed, 
with  the  lower  sido  less  curved  than  the  upper,  and  broader  at  the  base 
than  towards  the  tip,  so  as  to  be  slightly  securiform.  The  el3'tra  are 
rugosely  punctulate,  scarcely  striate,  clothed  with  small  stout  scales,  and 
with  rows  of  scarcely  longer  erect  brislles.  The  ventral  segments  are 
nearly  equal,  but  the  first  and  fifth  are  a  little  longer.  The  tibise  are  mod- 
erately dilated  with  three  or  four  small  teeth  near  the  tip,  which  is  obliquely 
truncate  ;  the  inner  angle  is  slightly  mucronate  ;  the  tarsi  are  slender,  the 
third  joint  not  emarginate,  the  fourth  small  but  distinct,  and  the  fifth  as 
long  as  tlie  others  united,  with  divergent  simple  claws. 

1.  P.  rufipannis  Lee,  Tr.  Am.  Eat.  Soc  18G8, 169;  Apate  (Lepisomus') 
rufipenn's  Kirb}',  Fauna  Bor.  Am.  iv,  193,  tab.  9,  fig  2  ;  A.  (L.)  wgriceps 
Kirby,  ibid,  194,  (imma'ure);  P.  saginatus  Mann.,  Bull.  Mosc.  1853,  237; 
Ifyle^imis  I'ufipennis  Mann.,  ibid.  1853,  237. 

New  Hampshire  to  Alaska,  also  in  Georgia.  The  surface  of  the  elytra 
's  slightly  asperate  near  the  base,  which  is  very  acutely  margined  ;  the 
rows  of  punctures  which  represent  the  strite  are  less  indistinct  in  some 
specimens  than  in  others.  The  male  has  the  front  slightly  impressed,  with 
a  small  frontal  tubercle  sometimes  divided  into  two.  Length  2-2.5  mm.; 
.08-.  10  inch. 

In  som3  specimens  a  few  separate  lenses  are  scattered  along  the  line 
between  the  two  parts  into  wliicli  tiie  eyes  are  divided  ;  in  others  thesj 
are  entirely  absent. 

Apdte  {Lepisomiu)  hrevicornis  Kirby,  loc.  cit.  194,  may  belong  to  this 
genus,  and  would  difter  by  the  shorter  antenntB  with  smaller  club.  The 
type  is  unfortunately  in  bad  condition,  and  quite  irrecognizable. 

Group  IL     Phlwotribl. 

This  gr.iup  is  intermediate  between  the  preceding  and  the  following,  and 
differs  from  both  by  the  antennal  club  being  composed  of  three  separate 
joints,  which  in  PMceotribuH  form  a  lamellate  ma's,  and  in  the  European 
genns  PhlceopJdhoms  a  loosely  articulate  club  as  in  many  Clavicornia.  Dr. 
Cliapuis  describes  the  antennsB  as  frontal  ;  but  I  see  no  special  difference 
i  1  their  position  from  that  observed  in  the  preceding  and  following  groups. 
The  head  is  but  very  little  prolonged  in  front  of  the  eyes,  and  there  is  no 
preocular  groove  for  the  reception  of  tlie  scape  of  the  antennae  such  as  is 
observed  in  the  two  foll:)wing  groups.  The  tibiae  arc  dilated,  compressed, 
obliquely  rounded  and  serrate  at  lip,  wi  h  the  inner  angle  slightly  muero- 
mte  ;  the  tarsi  have  the  joints  1-3  short,  gradually  a  little  wider ;  third 
not  emarginate  ;  foirth  very  small ;  fifih  as  long  as  the  others  united,  witli 
divergent  simple  claws.  The  basal  margin  of  the  elytra  is  acute  and 
serrate. 


LeConte.]  IIYLUEGmi.  377 

But  one  genus  is  represented  in  our  fauna: 

PHLCEOTRIBUS  Latr. 

The  eyes  are  transverse,  oblique,  and  not  emarginate.  Two  species  are 
known  to  me  ;  botli  clothed  with  stiff  pubescence. 

A.  Lamellate  joints  of  club  very  long  ;  tibiae  finely  serrate. 
Elytra  with  s'rite  of  large  punctures,  interspaces  nearly 

flat,  rugosely  punclulate,  sides  and  apex   feebly  ser- 
rate, prothorax  finely  punctulate 1 .  liminaris. 

B.  Lamellate  joints  of  club  short,  not  more  than  twice  as  wide  as  long ; 

tibiae  coarsely  serrate. 
Elytra  with  striae  of  large  punctures,  interspaces  narrow, 
serrate  with  single  rows  of  small  acute  granules,  sides 
and  apex  strongly  serrate  ;  prothorax  finely  not  densely 
graiiulato-punctate 2.  frontalis. 

1.  P.  liminaris  Lee,  Tr.  Am.  Ent.  Soc.  1868,  148;  Tomicus  liminaris 
Harris,  Inj.  Ins.  ed.  ult.  88. 

Middle  States,  depredating  on  peach  trees,  and  according  to  Miss  Marga- 
retta  Morris  (Downing's  Horticnlturalist,  iv,  502),  producing  the  disease 
called  the  yellows.     Length  2.3  mm. ;  .85  inch. 

2.  P.  frontalis  Zimm.,  Tr.  Am.  Ent.  Soc.  1868,  148;  Bostrichus  fr. 
Fabr.,  Syst.  El.  ii,  389;  Scolytusfr.  Oliv.,  Ins.  No.  78,  13,  PI.  2.  f.  20; 
Phlmophthoms  gran'colUti  Eichhoff,  Berl.  Ent.  Zeitschr.  1868,  149  ;  Phlmo- 
tribus  gr.  Chapuis,  Mem.  Soc.  Roy.  Sc.  Liege. 

(^.  Head  broadly  concave,  armed  with  a  small  erect  acute  spine  each  side 
above  the  insertion  of  the  antennae  ;  the  spines  vary  in  length,  according 
to  the  individual. 

9 .  Head  nearly  flat,  with  a  fiiint  crescentic  impression. 

District  of  Columbia,  Georgia,  Iowa  ;  found  in  Missouri  by  Mr.  Rilej-, 
depredating  on  mulberry.  I  have  mentioned  Phlceotribiis  setulosus  and 
dubius  Eichhoff^,  (Berl.  Ent.  Zeitschr.  1868,  149),  as  synonyms  of  this  spe- 
cies ;  but  from  the  memoir  of  Dr.  Chapuis,  above  cited,  I  learn  that  these  are 
really  South  American  species.  The  locality  given  by  Mr.  £10111100"  is  there- 
fore incorrect,  and  his  descriptions  are  so  indefinite  as  to  render  my  error 
quite  excusable. 

This  species  is  of  the  same  size  and  form  as  the  preceding,  but  is  readily 
recognized  by  the  differences  in  the  antfinnal  club  and  in  the  sculpture  of 
the  prothorax  and  elytra. 

Group  III.      Hylnrs^i. 

In  this  group  the  form  varies  from  oval  to  cylindrical;  the  antennae  are 
inserted  at  the  sides  of  the  front,  immediately  before  the  eyes,  which  are 
large,  transverse,  slightly  or  not  at  all  emarginate,  and  finely  granulated. 
The  scape  of  the  antennae  is  long,  and  is  received  in  a  narrow,  transverse 
groove  in  front  of  the  eyes;  this  groove  becomes  more  developed  in  the  next 

PKOC.  AMER.  PHILOS.  SOC.  XV.  96.  2v 


378  SCOLYTID^.  [LeConte. 

group,  but  is  not  apparent  in  the  preceding  groups  or  tribes ;  tlie 
mandibles  are  stronger,  nearly  flat  above,  and  the  labrum  is  obsolete;  these 
characters  indicate  a  recurrence  towards  the  normal  Rhynchophora.  The 
funicle  of  the  antennae  is  5-7 -jointed;  the  first  joint  stout,  the  others  slender, 
closely  united;  the  club  is  very  slightly  compressed,  annulated  and  pubes- 
cent, oval-pointed  in  Hylesinus,  circular,  compressed,  nearly  glabrous,  with 
transverse  sutures  in  Dendroctonus.  The  ventral  segments  are  convex, 
nearly  equal;  the  first  and  fifth  somewhat  longer,  the  sutures  deep  and 
straight.  The  tibiae  are  dilated,  and  strongly  toothed  except  in  Cnesimus, 
where  they  are  not  serrate;  the  third  joint  of  the  tarsi  is  usually  bilobed, 
and  the  fourth  very  small;  the  fifth  long  with  divergent  simple  claws. 

The  basal  margin  of  the  elytra  is  elevated  and  acute  as  in  the  two  preced- 
ing groups,  and  the  protliorax  is  narrowed  from  the  base  forwards. 
Funicle  7jointed 2. 

"     6-jointed BLASTOPHAGUS. 

"     5-jointed 4. 

2.  Tibiae  with  few  teeth;  protliorax  strigose  longi- 

tudinally, anterior  coxae  widely  separated; 

club  elongate-oval,    compressed CNESINUS. 

Tibia?  serrate;  club  elongate-oval,  pointed,  not 

compressed HYLESINUS. 

3.  Club  oval,  obtusely  pointed;  first  joint  of  tarsi 

not  shorter;  outer  joints  of  funicle  much 

broader PHLCEOSINUS. 

Outer  joints  of  funicle  scarcely  broader CH^TOPHLCEUS. 

Club  oval-elongate;  first  joint  of  tarsi  short CARPHOBORUS. 

"    circular,  compressed;  first  joint  of  tarsi  not 

shorter DENDROCTONUS. 

CNESINUS  Lee. 
NemopMlus  Chapuis. 

I  have  already  sufllciently  described  this  remarkable  genus,  which  is  at 
once  known  by  the  widely  separated  front  coxte,  and  the  longitudinally 
aciculate  protliorax.  Dr.  Chapuis  is  in  error  in  describing  the  tibiae  as 
"extus  integerrimae;"  the  front  tibiae  have  three  acute  teeth  directed  back- 
wards, of  which  the  third  is  apical,  and  the  others  near  the  apex;  the 
outer  apical  angle  of  the  middle  tibiae  is  produced,  and  emarginate  at  tip. 
The  third  joint  of  the  tarsi  is  visible  but  not  conspicuously  emarginate;  the 
joints  1-3  are  rather  stout,  nearly  equal,  and  the  fifth  is  shorter  than  the 
others  united. 

1.  O.  strigicollis  Lee,  Tr.  Am.  Ent  Soc.  1868,  171;  NemopMlus  stri- 
giUatus  Chapuis,  Mem.  Soc.  Roy.  Sc.  Liege,  1869,  27. 

Illinois  and  South  Carolina;  also  in  Texas,  according  to  Chapuis.  Length 

3  mm.;  .11  inch. 

HYLESINUS  Fabr. 

This  genus  represents  the  first  division  of  my  memoir,  above  cited,  and 
contains  those  species  in  which  the  funicle  is  composed  of  seven  distinct 


LeConte.] 


HYLURGINI.  379 


joints,  which  united  are  nearly  or  quite  as  long  as  the  club.  The  tibiiB  are 
finely  serrate  at  and  near  the  tip;  the  joints  1-3  of  the  tarsi  are  rather  broad 
and  equal,  the  third  bilobed;  the  fifih  about  equal  to  the  others  united, and 
f.lavate,  with  simple,  divergent  claws. 

With  one  exception,  the  species  are  densely  clothed  with  flat  scales,  and 
variegated  in  color  with  pale  and  dark  gray  tints. 

Body   oval,    clolhed   with   pale  and  dark  scales,  with- 
out intermixed  hairs 2. 

Body  elongate , 4. 

2.  Club  of  antennae  elongate-fusiform,  bands  of  elytra 

oblique 3. 

Club  of  antennsB  oval,  body  stouter,  bands  of  elytra 

transverse 3.  fasciatus. 

3.  Sides  of  prothorax  muricate  before  the  middle 1 .  imperialis. 

"                  "         not  muricate 2.  aculeatus. 

4.  Clothed  with  scales,  with  rows  of  bristles  on  the  elytra  4.  sericeus. 
Clothed  with  short,  erect  yellow  hair,  without  scales  5.  opaeulus. 
Thinly  and  finely  pubescent;  prothorax  muricate  at 

the  sides 6.  aspericoUis. 

1.  H.  imparialis  Eichhoff,  Berl.  Ent.  Zeitschr.  1868,  149  ;  Lee,  Tr. 
Am.  Ent.  Soc.  1868,  169 ;  E.  aculeatus  %  Chapuis,  1.  c.  32. 

Dakota  and  Arizona.  Resembles  the  next  species,  but  is  easily  known 
by  the  muricate  punctures  of  the  sides  of  the  prothorax  ;  the  basal  edge  of 
the  elytra  is  also  more  strongly  serrate.  There  is  no  such  difference  in  the 
depth  or  punctuation  of  the  elytral  striae  as  to  warrant  the  differential 
phrases  used  by  Dr.  Chapuis.  It  is  found  also  in  Wisconsin  and  Georgia,  ac- 
cording to  EichhofF,  and  seems  to  me  to  be  barely  distinct  from  the  follow- 
ing species. 

2.  H.  aculeatus  Say,  Journ.  Ac.  Nat.  Sc.  Phil,  iii,  333  ;  ed.  Lee,  ii, 
181 ;  Zimm.,  Tr.  Am.  Ent.  Sue.  1868,  149  ;  H.  piniinosm  Eichhoff,  Berl. 
Ent.  Zeitschr.  1868,  149  ;  Chapuis,  Mem.  Soc.  Roy.  Sc  Liege,  1869,  33. 

Massachusetts  to  Texas,  Kansas  and  Oregon  ;  depredates  on  Fraxinus. 
So  far  as  the  dis'inctions  exist  between  this  and  the  preceding,  they  are 
well  exhibited  in  the  descriptions  of  Eichhoff";  to  whom,  however,  the  de- 
scriptions of  Say  seem  to  have  been  unknown.  It  has  happened  unfor- 
tunately that  Dr.  Chapuis  has  applied  Say's  name  to  the  less  known  form 
called  imperialis  by  Eichhoft',  and  retaiq^ed  pruinosus  for  the  present  well- 
known  and  widely  diffused  form. 

The  Munich  Catalogue  has  added  to  the  confusion  by  citing  Say's  de- 
scription under  the  genus  Dendrosinus  (2673),  and  placing  //.  c/lobosus 
Eichhoff,  as  a  synonym.  The  latter  is  probably  a  South  American  species, 
described  by  Eichhoff,  with  an  incorrect  localitj',  since  a  variety  of  it  is 
mentioned  by  Chapuis  (p.  28)  as  occurring  in  Columbia.  Length  3.2- 
3.4mm.;  .09-.  13  inch. 

In  the  (^  the  head  is  more  flattened  than  in  the  9  ;  and   occasionally 


380  SCOLYTID^. 


[LeConte. 


has  a  very  narrow  smooth  lougitucjinal  line.  The  specific  name  is  badly- 
chosen,  as  it  is  only  in  partially  abraded  specimens  tliat  the  muricate  punc- 
tures of  the  interspaces  of  the  elytra  can  be  seen. 

3.  H.  fasciatus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  170. 

One  specimen,  York  county,  Pa.  A  small  species  of  stouter  oval  form, 
with  the  club  of  the  antennte  thicker,  less  elongate,  and  corneous  and 
shining  at  the  base.     Length  1.5  mm. ;  .06  inch. 

4.  H.  sericeus  Mann.,  Bull.  Mosc.  1852,  385;  Hylurgus  ser.  Mann., 
ibid,  1843,  296  ;  ibid,  1852,  356. 

Var.  H.  neb'uloms  Lee,  Proc.  Ac.  Nat.  Sc.  Phil.  1859,  285. 

Alaska  to  California.  Length  3  mm.;  .12  inch.  The  outer  interspaces 
of  the  elytra  are  marked  with  a  row  of  small  acute  tubercles.  The  bristles 
of  the  elytra  are  longer  in  the  type  than  in  the  variety,  and  the  sides  of  the 
prothorax  seem  a  little  more  rounded,  but  otherwise  there  is  no  special 
difference.  The  elytra  are  not  banded  as  in  the  preceding  species,  but 
confusedly  tesselated.  I  observe  no  sexual  characters,  and  the  front  is 
finel}'  carinate  in  the  four  specimens  examined.  The  head  is  more  prolonged 
than  in  the  other  species.  The  club  of  the  antennne  is  subovate  pointed, 
about  twice  as  long  as  wide,  annulated  with  straight  sutures. 

5.  H.  opaculus  Lee,  Tr.  Am  Ent.  Soc.  1868,  170  ;  Phlceosinu.s  j;.  liini- 
naris  %  Chapuis,  Mem.  Soc.  Roy.  Sc.  Liege,  1869,  39. 

Middle  States.  This  species  has  a  deceptive  resemblance  to  Phlmotribus 
frontalis,  and  it  is  only  by  examining  the  antennte  that  it  may  with  cer- 
tainty be  separated.  The  reference  to  the  genus  Phheosinus  is  incorrect, 
as  the  outer  part  of  the  tunicle  is  divided  into  six  joints  by  five  transverse 
sutures,  precisely  as  in  the  other  species  of  Ilylesinus.  The  club  is  sub- 
ovate,  obtusely  pointed,  with  straight  sutures,  and  the  basal  part  is  more 
shining  and  less  pubescent  than  usual.     Length  2-2.5  mm. ;  .08-10  inch. 

6.  H.  aspericollis  n.  sp. 

Cylindrical,  rather  elongate,  blackish-brown,  thinly  clothed  with  fine 
short  pubescence.  Head  sparsely  punctured,  with  a  faint  frontal  impres- 
sion, and  an  indistinct  smooth  median  line.  Prothorax  at  base  scarcely 
wider  than  long,  slightly  rounded  on  the  sides,  gradually  narrowed  in 
front,  but  not  constricted,  nearly  truncate  at  base  and  apex,  finely  and 
densel}'  punctured,  sparsely  but  strongly  asperate,  with  acute  tubercles  at 
the  sides.  Elytra  with  punctured  strife,  interspaces  moderately  convex, 
granulato-rugose,  and  muricate  with  acute  small  spines  becoming  more 
prominent  on  the  declivity.  Antennse  ferruginous,  with  seven  distinct 
joints  in  the  funicle ;  club  oval-pointed,  transversely  annulated  as  usual  ; 
front  tibife  rather  suddenly  dilated  at  the  tip.  Length  2.5-3.4  mm. ;  .10- 
.13  inch. 

California,  (at  Santa  Barbara?);  Mi*.  Crotch;  several  specimens,  in 
which  I  observe  no  special  sexual  differences,  except  that  in  some  the  frontal 
impression  is  a  little  deeper.  It  is  similar  in  form  to  //.  opaculus  but 
larger,  with  the  pubescence  much  finer  and  inconspicuous. 


LeConte.] 


HYLURGIKI.  381 


PHL^OSINUS  Eichhoff. 
In  this  genus  the  funicle  of  the  antennae  is  much  shorter  tlian  tlie  chib, 
the  tirst  joint  is  rounded,  the  remaining  four  joints  are  closely  united  and 
gradually  become  broader  ;  the  club  is  large,  oval,  compressed,  obtusely 
rounded,  and  lUvided  by  straight  well-marked  sutures.  The  front  coxte 
are  moderately  distant.  The  tibiae  are  acutely  serrate  ;  the  tarsi  have  the 
joints  1-3  equ-il,  the  third  bilobed  ;  the  fifth  is  nearly  equal  to  the  others 
united.  I  liave  erroneously  mentioned  the  ftinicle  of  the  antennai  of  these 
species  as  6-jointed,  in  the  memoir  cited  below. 

Pubescence  fine,  sparse,  declivity  of  elytra  with  firsi 
and  third   interspaces  more   elevated,    and    more 

strongly  tuberculate 1.  serratus. 

Pubescence  fine,  sparse,  declivity  of  elytra  with  third 

interspace  elevated  behind 2.  cristatus. 

Pubescence  fine,  less  sparse,  declivity  of  elytra  more 
finely  tuberculate,  or  serrate,  nearly  equal  in  con- 
vexity        3.  dentatus. 

Pubescence  fine,  less  sparse,  striae  of  elytra  strongly 
punctured,  secjnd  interspace  depressed  on  the  de- 
clivity, the  others  serrate  with  acute  tubercles, 
nearly  equal  in  convexity 4.  punctatus. 

1.  P.  serratus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  170. 

New  York,  one  specimen.  This  species  is  cited  in  the  Munich  Catalogue 
as  undescribed.  The  diagnosis  given  on  page  169  of  my  memoir,  and  the 
explanatory  remarks  under  the  next  species  contain  all  the  information 
necessary  to  distinguish  it  from  the  common  and  well  known  P.  dentatus. 
Any  lengthy  description  would  be  unnecessary,  as  it  only  difters  by  larger 
size,  and  by  the  first  and  third  interspaces  being  stronglj''  elevated  and  ser- 
rate behind.  The  pubescence  is  shorter,  and  seems  less  dense  than  in  P. 
dentatus,  but  this  may  be  produced  by  abrasion.  Length  3.5  mm. ;  .14  inch. 

The  striae  are  distinctly  punctured;  the  interspaces  wide,  densely  and 
strongly  granulate  and  rugose.     The  front  is  very  slightly  carinate. 

2.  P.  cristatus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  170. 

California;  cabinet  of  Mr.  Ulke.  I  have  no  specimen  of  this  species,  and 
can  only  say  that  it  differs  from  the  preceding  by  the  larger  size  (4  mm. ; 
.16  inch);  and  by  the  sutural  interspace  being  less  elevated  than  the  third, 
though  also  serrate. 

3.  P.  dentatus.  Hylurgus  dent.  Say,  Journ.  Acad.  Nat.  Sc.  Phil,  v,  258; 
ed.  Lee,  ii,  319. 

Middle  and  Eastern  States  and  Canada;  depredates  on  Juniper  us.  Smaller 
than  the  two  preceding,  with  the  declivity  of  the  elytra  more  abrupt  and 
flattened,  and  less  convex;  the  striae  are  impressed  and  scarcely  punctured, 
the  interspaces  are  wide,  densely  and  strongly  granulate  and  rugose;  the 
rugosities  becoming  acute  tubercles  on  the  declivity  of  the  alternate  inter- 
spaces; second  interspace  not  depressed  on  the  declivity,  and  furnished 


382  SCOLYTID^. 


[LeConte, 


with  a  row  of  smaller  tubercles  in  some  specimens,  but  not  in  others.  This 
difference  is  probably  sexual.  The  head  is  granulato -punctate,  and  the  front 
is  not  carinate. 

4.  P.  punetatus,  n.  sp. 

This  species  precisely  resembles  P.  dentatus  in  form,  size  and  sculpture, 
except  that  the  striae  of  the  elytra  are  wider,  and  strongly  punctured;  the 
interspaces  narrower,  less  densely  granulated  and  rugose,  and  the  second 
interspace  on  the  declivity  is  depressed,  shining,  sparsely  punctured,  and 
narrower  than  the  adjacent  interspaces.  The  front  is  finely  but  distinctly 
carinate.     Length  3  mm.;  .08  inch. 

Oregon  and  Lake  Superior. 

P.  Haagii  Chapuis,  Mem.  See.  Roy.  Sc.  Liege,  1869,  38;  Dendroctoims 
Haagii  Eichhoff,  Berl.  Ent.  Zeitschr.  1868,  148,  may  be  synonymous  with 
this  species,  but  I  do  not  observe  in  the  four  specimens  in  my  collection  any 
trace  of  the  smooth  dorsal  line  extending  from  the  base  beyond  the  middle, 
as  mentioned  in  Chapuis'  description.  Neither  is  the  locality  given, "  Amer. 
bor.,"  of  much  service  in  identifying  the  species  in  a  genus  where  the 
forms  are  so  closely  similar. 

P.  graniger  Chapuis,  1.  c.  39,  I  am  also  unwilling  to  attach  as  a 
synonym  to  any  of  the  species  above  described;  being  from  Texas  it  is 
quite  liltely  to  be  different.  The  descriptions  of  both  these  species  will  be 
found  in  the  appendix. 

CH^TOPHLCEUS  n.  g. 

Tliis  genus  is  founded  upon  Jli/lesinus  hystrix,  a  singular  species  from 
California,  of  robust  oval  form,  thickly  clothed  with  coarse,  erect  hair.  It 
differs  from  Phlaiosinus  by  the  four  joints  which  constitute  the  outer  part 
of  the  funicle  of  the  antennae  being  slender,  and  increasing  much  less  rap- 
idly in  thickness;  the  club  is  equally  large,  subovate,  compressed,  obtusely 
rounded  at  tip,  and  the  sutures  are  also  straight.  The  mouth  is  clothed  with 
long,  coarse  hair.  The  prosternum  is  very  short  in  front  of  the  coxae,  which 
are  very  narrowly  separated.  The  first  ventral  segment  is  longer  than  the 
second,  and  the  third,  fourth  and  fifth  are  short.  The  tibiae  are  broadly  di- 
lated, rounded  and  finely  serrate  at  tip;  the  tarsi  are  not  plainly  visible  in 
the  unique  specimen  in  my  collection,  but  the  third  joint  is  emarginate, 
rather  than  bilobed. 

1.  O.  hystrix  Lee,  Pr.  Ac.  Nat.  Sc.  Phil.  1858,  81;  Tr.  Am.  Ent.  Soc. 
1868,  171  {Ilylesinus). 

San  Diego,  one  specimen.  The  head  is  broadly  concave,  with  a  smooth 
medial  line.  The  prothorax  is  strongly  and  densely  punctured.  The  elytral 
striae  are  not  impressed,  and  are  composed  of  approximate  punctures;  the 
interspaces  are  flat,  punctured;  the  declivity  is  rounded,  the  part  near  the 
suture  is  deeply  and  broadly  concave,  and  the  outer  side  of  the  concavity, 
corresponding  to  about  the  fourth  interspace,  is  armed  with  four  or  five  tu- 
bercles; the  sutural  interspace  on  the  declivity  is  narrow,  slightly  elevated, 
and  marked  with  a  row  of  very  small  granules.  Length  2.2  mm. ;  .09  inch. 


LeConte.]  HYLURGINI.  383 

OARPHOBORUS  Eichhoflf. 

This  geaus  contains  species  of  small  size  and  elongate  form;  dull, densely 
punctured  surface,  clothed  with  very  small  yellowish  scales.  The  elytra 
are  striate  with  large,  approximate  punctures;  the  second  interspace  is  nar- 
rowed and  abbreviated  on  the  declivity,  and  the  third  is  elevated  into  a 
high,  spinulose  crest,  whicli  unites  with  the  apical  margin;  this  margin  is 
similarly  thickened  and  elevated,  though  to  a  less  extent.  The  funicle  of 
the  antennae  is  5-jointed;  first  joint  larger  and  rounded,  the  others  closely 
united,  forming  a  short,  conical  mass,  as  in  Phlceosinus;  club  lai-ge,  slightly 
pubescent,  moderately  compres  ed;  rounded,  obtuse  at  tip,  and  divided  by 
two  straight  sutures;  the  first  joint  of  the  club  is  more  shining  than  the 
others.  Prosternum  very  short  in  front  of  the  coxae,  which  are  large,  prom- 
inent and  contiguous.  The  tibiaj  are  moderately  dilated,  the  front  ones 
have  two  acute  teeth  near  the  tip,  on  the  outer  side,  and  a  long,  terminal 
hook  at  the  inner  angle;  the  other  tibiae  are  obliquely  rounded  at  tip  and 
finely  serrate;  the  first  joint  of  the  tarsi  is  shorter  than  the  second;  the 
third  is  equal  to  the  second,  not  bilobed;  the  fifth  is  as  long  as  the  others 
united.     The  mouth  is  clothed  with  long,  coarse  hair  as  in  Chwtophlceus. 

First  and  third  interspaces  of  the  elytra  elevated  on 

the  declivity  and  serrate 2. 

First  and  third  interspaces  scarcely  elevated,  not  ser- 
rate           1 .  simplex. 

3.  First  and  third  moderately  elevated;  second  not  much 

narrowed  on  the  declivity 2.  bifurcus. 

First  and  third  strongly  elevated;  second  much  nar- 
rower on  the  declivity 3.  bicristatus. 

1.  C.  simplex  n.  sp. 

Elongate-cylindrical,  blackish-brown,  somewhat  shining.  Head  finely 
and  densely  granulato-punctate  in  front,  nearly  smooth  behind.  Prothorax 
twice  as  wide  as  long,  broadly  rounded  on  the  sides,  narrowed  and  feebly 
constricted  in  front,  which  is  nearly  truncate  ;  base  slightly  bisinuate  ; 
finely  punctured,  with  a  faint  indication  of  a  smooth  dorsal  line  ;  scarcely 
perceptibly  pubescent.  Elytra  with  striae  of  quadrate  punctures,  inter- 
spaces finely  roughened,  thinly  clothed  with  very  small  scales,  second  in- 
terspace depressed  and  narrowed  on  the  declivity,  first  and  third  slightly 
elevated,  not  serrate.     Length  2.3  mm.;  .085  inch. 

J^,  Head  with  a  round  excavation  fringed  with  long  yellow  hairs. 

9.  Head  slightly  impressed,  not  hairy. 

Mojave  Desert,  California;  Mr.  Crotch.  The  fifth  joint  of  the  funicle  is 
broader  and  almost  part  of  the  club  ;  the  third  joint  of  the  tarsi  is  not  wider 
than  the  second,  just  as  in  the  other  species. 

2.  O.  bifurcus  Eichhoff,  Berl.  Ent.  Zeitschr.  1868,  147;  Dendroctonus 
hif.  Zimm.,  Tr.  Am.  Ent.  Soc.  1868,  148;  Chapuis,  Mem.  Soc.  Roy.  Sc. 
Liege,  1869,  97. 

(^ .  Front  with  two  small  approximate  tubercles. 
$ .  Front  uniformly  convex. 


3S4 


SCOLYTID^.  [LeConte. 


District  of  Columbia;  Ulke.  This  species  differs  from  the  next  by  the 
third  interspace  of  the  elytra  being  less  elevated  on  the  declivity,  and  the 
second  less  evidently  narrowed.  The  punctures  of  the  elytral  striis  are 
also  larger.  A  greater  number  of  specimens  will  probably  show  that  these 
differences  are  not  of  specific  value.     Length  1.5  mm. ;  .06  inch. 

3.  O.  bicristatus  Chapuis,  loo.  cit.  97. 

Georgia,  two  females  ;  under  pine  bark.     Length  1.8  mm.;  .07  inch. 

DENDROCTONUS  Er. 

The  body  is  stout  cylindrical,  narrowed  in  front,  punctured  and  hairy  ; 
the  funicle  is  5-jointcd,  the  first  joint  rounded,  but  not  large  ;  the  other 
joints  gradually  increasing  in  breadth  ;  club  rounded,  strongly  compressed, 
scarcely  pubescent,  divided  by  three  transverse  straight  sutures.  Pro- 
thorax  sliglitly  emarginate  in  front,  bisinuate  at  base.  Pros'.ernura  not 
very  short  in  front  of  the  coxae,  broadly  concave,  with  traces  of  a  I'idge 
each  side,  as  in  Phlceos'mui  and  Blastophagus;  front  coxte  contiguous. 
Tibi*  moderately  dilated,  with  a  few  large  lateral  and  apical  teeth;  terminal 
spine  stout  and  straight ;  tarsi  with  joints  1-3  slightly  decreasing  in  length; 
third  wider,  deeply  bilobed,  fourth  small,  distinct;  fifth  as  long  as  the 
others  united.  Ventral  segments  nearly  equal  in  length  ;  the  first  suture 
is  straight,  the  others  strongly  curved  backwards  at  the  side. 

The  species  depredate  upon  pine  trees,  and  are  closely  allied  and  diflScult 
to  distinguish  ;  the  dorsal  line  of  the  prothorax  varies  in  individuals  of  the 
same  species;  I  cannot  change  the  table  I  have  given  in  the  memoir  cited 
below  except  by  adding  one  new  species. 

Prothorax  narrowed  in  front,  slightly  bisinuate  at  base  2. 

"          very  slightly  narrowed  in  front,  strongly 
bisinuate  at  base  ;  head  large ...    7.  frontalis. 

2.  Interspaces  rough  both  on  the  disc  and  on  the  de- 

clivitj' 3. 

Interspaces  rough  towards  the  base,  but  only  punc- 
tured on  the  declivity 4. 

3.  Prothorax  very  densely  coarsely  punctured ;  hairs  of 

elytra  not  very  long 1.  terebrans. 

Prothorax  less   densely  punctured ;    hairs  of  elytra 

long 2.  similis. 

4.  Prothorax  punctured  with  smaller  punctures  inter- 

mixed, hairs  of  elytra  long 3.  ruflpennis. 

Prothorax  equably  punctured,  occiput  finely  punc- 
tured, hairs  of  elytra  long 4.  punctatus. 

Prothorax  equably  punctured,  occiput  sparsely  punc- 
tured, hairs  of  elytra  long  ;  smaller,  witli  broader 
prothorax 5.  simplex. 

Prothorax  finely  sparsely  punctured  ;  elytra  opaque, 
densely,  finely  granulated  and  punctulate,  pubes- 
cence very  short 6.  brevicomis. 


LeConte.] 


IIYI.UKGINI.  385 


1.  D.  terebrans  Lac. ,  Gen.  Col.   vii,  361  ;  Ziiiim.,  Tr.  Am.  Ent.  Soc. 

1868,  149  ;  Scolytus  ter.  Oliv.,  Ent.  78,  p.  6  ;  pi.  1.  f.  6;  D.  valem  Lee, 
Pacific  II.  R.  Expl.  and  Surveys,  Ins.  59  ;  Chapuis,  Mem.,  Soc.  Roy.  Liege, 

1869,  91. 

Canada,  Georgia,  Oregon,  California.  The  specimens  from  the  Pacific 
slope  are  larger,  and  the  punctures  of  the  prothorax  are  rather  smaller  and 
more  dense,  but  these  differences  do  not  seem  to  me  worthy  of  specific 
distinction.  Some  specimens  from  New  Hampshire  and  Canada  have  the 
prothorax  more  sparsely  punctured,  almost  as  in  the  next  species,  from 
which  they  are  only  distinguished  by  the  shorter  hairs  of  the  elytra. 
Length  5.2-8  mm  ;  .2-32  inch. 

2.  D.  similis  Lee,  Pac.  R.  R.  Expl.  and  Surveys,  Ins.  59. 

Oregon  ;  five  specimens.  I  have  incorrectly  cited  this  species  as  a  syn- 
onym of  D.  obesus,  from  which  it  differs  in  having  the  aspeiities  of  the 
elytra  continue  on  the  declivity.  The  tibias  are  armed,  as  in  the  preceding, 
with  three  acute  teeth  on  the  outer  side  near  the  tip,  but  the  prothorax 
is  less  densely  punctured,  and  the  elytral  hairs  are  longer  ;  the  back  part  of 
the  head  is  less  densely  punctured.     Length  4.5-6.5  mm.;  .18-. 25  inch. 

A  smaller  and  somewhat  more  elongate  form  occurs  in  Canada,  Texas 
and  Colorado,  but  I  do  not  think  it  capable  of  being  separated  as  a  distinct 
species.     Length  4.2  mm.;  .165  inch. 

3.  D.  ruflpennis  Kirby,  Fauna  Bor.  Am.  iv,  195,  {Hylurgus);  Mann., 
Bull.  Mosc.  1853,  238  ;  Hylurgus  obesus  Mann.,  ibid.  1843,  296;  ibid.  1852, 
356. 

Alaska,  Canada,  Anticosti.  I  can  perceive  no  difference  between  the 
specimens  sent  me  under  the  names  cited  above.  It  is  only  to  be  distin- 
guished from  the  preceding  by  the  declivity  of  the  elytra  smoother  and 
more  shining,  and  almost  without  asperities  ;  and  by  a  slight  difference  in 
the  punctures  of  the  prothorax,  which  are  of  unequal  size.  The  dorsal 
line  of  the  prothorax  is  sometimes  narrow  and  elevated,  sometimes  obsolete. 
Length  6  mm. ;  .24  inch. 

4.  D.  punctatus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  193. 

New  York ;  three  specimens.  Very  similar  to  the  preceding,  but  the 
back  part  of  the  head  is  nearly  smooth,  or  feebly  punctulate  ;  the  punctures 
of  the  prothorax  are  larger  and  less  dense,  and  the  declivity  of  the  elytra 
less  shining,  and  very  slightly  asperate.     Length  6  mm. ;  .25  inch. 

5.  D.  simplex  Lee,  Tr.  Am.  Ent.  Soe  1868,  173. 

Canada  ;  two  specimens.  Much  smaller,  with  the  prothorax  compara- 
tively wider  and  shorter,  and  more  densely  punctured.  The  elytra  are 
more  shining,  and  more  strongly  and  sparsely  punctured  on  the  declivity; 
the  head  is  sparsely  but  deeply  punctured  behind,  and  in  front  is  densely 
granulate  as  usual.     Length  4  mm. ;  .16  inch. 

If  I  have  failed  to  indicate  more  strongly  the  differences  between  these 
species,  it  is  because  thej^  are  not  distinguished  by  any  prominent 
or  definite  characters  ;  and  the  student,  who  may  have  difficulty  in  identi- 

PROC.   AMER.  PHILOS.  SOC.  XV.  96.  2w 


386  SCOLYTID^. 


[LeConte. 


fying  the  species  as  here  defined,  would  have  almost  equal  difficulty,  if  the 
specimens  in  my  collection  were  before  him. 

6.  D.  brevicomis,  n.  sp. 

Elongate-cylindrical,  red-brown,  with  a  few  long  hairs  on  the  prothorax, 
and  numerous  very  short  ones  on  the  elytra.  Head  large,  finely  not  densely 
granulate,  rugose,  occiput  nearly  smooth,  face  with  an  interrupted  longi- 
tudinal impression,  antennae  with  circular  compressed  club,  sutures  trans- 
vei'se,  funicle  5-jointed.  Prothorax  at  base  nearly  twice  as  wide  as  long, 
as  strongly  bisinuate  as  in  D.  frontalis;  very  slightly  narrowed  towards  the 
tip,  and  slightly  constricted  ;  punctures  small,  not  dense,  surface  shining, 
with  no  trace  of  a  dorsal  line.  Elytra  opaque,  strife  indistinct,  composed 
of  not  very  evident  punctures  ;  surface  finely  densely  granulate,  becoming 
punctulate  on  the  declivity  ;  in  other  respects  it  resembles  the  other  species 
of  the  genus.     Length  4.3  mm.;  .17  inch. 

One  specimen  ;  Middle  California.  Intermediate  in  form  of  prothorax 
between  the  next  and  the  foregoing  species,  but  strikingly  different  from 
both  by  the  sculpture  and  pubescence  of  the  elytra. 

7.  D.  frontalis  Zimm.,  Tr.  Am.  Ent.  Soc.  1868,  149  ;  (synon.  excl). 
Lake  Superior  to  Georgia.     The  head  is  channeled  and  marked  with 

approximate  frontal  tubercles  ;  the  occiput  is  finely  punctulate,  the  front 
roughly  punctured  as  usual.  The  interspaces  of  the  declivity  of  the  elytra 
are  finely  asperate,  and  the  hairs  are  short.  The  prothorax  is  scarcely 
narrowed  in  front,  and  the  base  is  more  strongly  bisinuate  than  in  the  other 
species.  The  club  of  the  antennae  is  round,  strongly  compressed  and  con- 
cave on  one  side,  as  in  the  other  species;  and  the  sutures  are  not  straight, 
but  curved.     Length  3  mm. ;  .12  inch. 

The  frontal  channel  is  deeper,  and  tlie  granulate  punctures  larger,  and 
denser  in  one  sex  than  in  the  other. 

Dr.  Zimmermann  cites  as  a  synonym  Bostrichus  frontalis  Fabr.,  Syst. 
El.  ii,  389  ;  the  description  appears  to  me  not  to  correspond,  and  I  have 
cited  it  above  as  pertaining  to  Phl(votribus  frontalis,  (p.  377). 

BLASTOPHAaUS  Eichhofl:'. 
This  genus  does  not  properly  belong  to  our  fauna,  and  I  mention  it  only 
for  the  purpose  of  correcting  the  error,  which  I  committed  of  describing 
an  accidentally  introduced  specimen  of  the  common  European  B.  piniperda 
under  the  name  Hylurgiis  analogus,  Tr.  Am.  Ent.  Soc.  1868,  172.  The 
last  mentioned  name  must  therefore  be  erased  from  our  list.  I  also  com- 
pared it  with  the  European  //.  lignlperda  on  theauthority  of  an  incorrectly 
named  specimen  which  I  borrowed  for  comparison.  If  the  genus  should 
hereafter  occur  in  our  fauna,  it  can  be  easily  recognized  by  the  outer  part 
of  the  funicle  of  the  antennae  being  divided  into  5  joints,  thus  making  the 
funicle  6-jointed,  and  by  the  club  being  ovate-pointed,  not  compressed, 
transversely  annulated,  with  the  joints  smooth  and  shining,  fringed  with 
hairs.  The  beak  is  somewhat  more  distinctly  developed  than  in  Dendroc- 
tonus,  and  the  antennal  grooves  are  wider  and  deeper. 


LeConte.] 


HYLURGINI.  387 


Group  IV.      €ryptHr$(i. 

This  group  consists  of  two  genera,  represented  by  very  small  species  of 
elongate  form,  which  agree  with  Ifglastes  in  general  appearance  and  sculp- 
ture, but  differ  by  the  beak  being  much  shorter,  and  the  prosternum  very 
short  and  not  excavated.  The  genus  Crypturgus  has  been  usually  associated 
with  the  Tomicini,  on  account  of  the  slender  tarsi,  but  it  makes  a  notable 
exception  to  the  other  members  of  that  tribe  by  the  large  exserted  head, 
and  the  absence  of  the  hood-like  prolongation  of  the  pro'.horax.  I  have, 
therefore,  thought  it  best  to  remove  it  from  that  position,  and  place  it  with 
Bolurgus,  as  a  separate  group.  Though  differing  in  the  antennal  club, 
wiiich  is  solid  in  Grypturgus,  and  annulated  transversely  with  the  first 
joint  corneous  in  Dolurgus,  these  two  genera  are  otherwise  closely  related, 
and  differ  remarkably  from  neighboring  forms  by  the  small  number  of 
joints  in  the  funicle.  The  prothorax  is  elongate-oval,  rounded  in  front, 
nearly  truncate  at  base;  the  scutellum  is  very  small,  not  depressed,  and  the 
basal  edge  of  the  elytra  is  not  elevated.  The  elytra  are  elongate-cylindri- 
cal, with  the  posterior  di^clivity  convex;  the  striae  are  well  marked,  and 
strongly  punctured;  the  interspaces  narrow,  finely  punctulale  and  slightly 
pubescent.  The  ventral  sutures  are  straight  and  deep;  the  first  and  fifth 
segments  are  longer  than  the  others.  The  prosternum  is  very  short,  not 
excavated;  the  front  coxae  are  contiguous;  the  tibiae  are  dilated,  and  finely 
serrate;  the  terminal  spur  is  very  small;  the  tarsi  are  slender,  with  the 
third  joint  not  dilated. 

Antennal  club  solid;  funicle  2-jointed ORYPTURGUS. 

"    annulated;  funicle  3-jointed DOLURGUS. 

ORYPTURGUS  Er. 

1.  O.  atomus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  153. 

Canada,  Massachusetts,  New  York;  under  bark  of  dead  pine  branches. 
Length  1  mm. ;  .04  inch. 

DOLURGUS  Eichhoff. 

1  D.  pumilus  Eichh.,  Berl.  Ent.  Zeitschr.  1868,  147;  Chapuis,  Mem.  Soc 
Roy.  Sc.  Liege,  1869,  80;  Hylastes  pumilm  Mann.,  Bull.  Mosc.  1843,  297; 
ibid.  1852,  356;  AphanarthrumXpum,.  Lee,  Tr.  Am.  Ent.  Soc.  1868,  152. 

Alaska.  Examination  of  specimens  of  Aplianarthrum  subsequently  ob- 
tained, shows  that  my  reference  of  this  species  to  that  Madeiran  genus  was 
incorrect;  there  is  no  resemblance  betsveen  them,  except  in  the  form  and 
number  of  joints  of  the  antenna3.  Eichhoff  describes  the  funicle  as  4-jointed, 
but  the  error  is  corrected  by  Chapuis.     Length  1.8  mm. ;  .07  inch. 

Group   V.     Hylastes. 

In  this  grou])  a  reversion  is  made  tow^ards  Cossonida  and  some  tribes  of 
Gurculionido},  in  the  antennal  funicle  and  club,  the  excavated  prosternum, 
and  the  antennal  grooves  of  the  beak,  which,  though  short  and  stout,  is 
more  developed  than  in  any  other  Scolytidce.     The  tibiae  are,  however, 


388 


SCOLTTID^. 


[LeConte. 


more  strongly  serrate,  and  are  armed  with  a  strong  apical  spur  ;  the  tarsi 
are  rather  short,  and  the  third  joint  is  more  or  less  dilated,  hilobed  or 
emarginate.  The  ventral  sutures  are  straight  and  deep  ;  first  and  fifth 
segments  longer  than  the  others.  The  head  isexserted  and  prominent,  the 
beak  short  and  stout,  with  oblique  deep  grooves,  which  unite  in  the  gular 
space,  forming  a  transverse  impression  ;  the  eyes  are  transverse,  not  verj^ 
finely  granulated.  Antennae  with  7-jointed  funicle  and  oval  annulated 
club,  which  is  not  compressed,  and  has  the  basal  joint  large,  corneous  and 
shining,  very  much  as  in  Baris.  The  scutellum  is  small,  not  depressed, 
and  the  basal  margin  of  the  elytrji  is  not  acutely  elevated,  though  quite 
distinct  in  II.  (jranulaim  and  finifex. 

Three  genera  are  indicated  by  our  species: 

Front  coxfB  contiguous,  or  nearly  so 2. 

"         "     widely  separated SCIERUS. 

Third  joint  of  tarsi  emarginate HYLASTES. 

"     bilobed HYLURGOPS. 

HYLASTES  Er. 

I  have  but  two  species  to  add  to  those  mentioned  in  my  synopsis,  which 
may  be  thus  tabulated  ;  all  have  the  third  joint  of  tarsi  emarginate,  not 
dilated  ;  mesosternum  truncate,  not  protuberant ;  tibise  with  very  large 
teeth  ;  prosternal  ridges  acute  ;  basal  margin  of  elytra  not  acute. 

Beak  carinated 2. 

Beak  not  carinated  ;  small,  slender,  dark  brown,  elytra 
coarsely  punctured  in  rows,   with  rows  of  short 

suberect  hairs 8- 

3.  Glabrous  or  subglabrous  species 3. 

More  or  less  hairy Y. 

3.  Elytral  interspaces  not  canvex,  punctured  and  less 

rugose ;     form    more    slender,    prothorax    more 

densely  punctured 4. 

Elytral  interspaces  convex,  rough  and  rugose 6. 

4.  Longer  and  narrower  than  nigrinus  and  more  finely 

sculptured  on  the  head  and  prothorax 5. 

Somewhat  less  slender,  more  coarsely  sculptured 3.  nigrinus. 

5.  Protliorax  nearly  elliptical,  more  coarsely  punctured  1.  macer. 
Prothorax  gradually  narrowed  in  front,  less  coarsely 

punctured 2.  longus. 

6.  Elytra  rougher,  and  muricate  behind  towards  the  sides        4.  porculus. 
Rugosities  finer,  sides  of  elytra  not  muricate 5.  cavernosus. 

7.  Pubescence  fine  and  short ;  prothorax  equably  punc- 

tured   6.  gracilis. 

Hairs  long  and  sparse  ;  prothorax  coarsely  punctured, 

with  smaller  punctures  intermixed 7.  porosus. 

8.  Interspaces  of  elytra  opaque,  rough  with  small  granules  8.  tenuis. 
Interspaces  of  elytra  somewhat  shining,  rugose. 9.  exilis. 


LeConte.l 


HYLURGINI.  389 


2.  H.  longus,  n.  sp. 

Slender,  cylindrical,  black,  nearly  glabrous.  Head  densely  punctured, 
beak  finely  carinate,  front  with  a  transverse  impression.  Prothorax  longer 
than  wide,  base  and  hind  angles  rounded,  sides  sliglitly  rounded,  converg- 
ing graduall}'  to  the  tip,  which  is  broadly  rounded;  punctures  deep  and 
strong,  larger  at  the  base  than  at  the  tip  and  sides,  where  the^^  are  also 
more  dense;  no  smooth  dorsal  line  is  visible.  Elytra  less  shining  than  the 
prothorax,  with  striai  composed  of  moderate  sized,  punctures;  interspaces 
nearly  fiat,  wider  than  the  striip,  densely,  finely  punctured.  Club  of  an- 
tennae brown,  first  joint  composing  about  one-half  of  the  mass.  Length  4.5 
mm.;  .175  inch. 

Colorado, Prof.  F.  H.  Snow;  one  specimen.  This  species  resembles  closely 
H.  macer,  but  can  be  easil}^  recognized  by  the  different  form  of  the  pro- 
thorax. 

The  following  synonyms  will  complete  the  bibliography  I  have  already 
given  in  my  synopsis. 

4.  H.  porculus  Er.  "Wiegm.  Archiv.  1831),  i,  49  ;  U.  carbowirius  Fitch, 
Noxious  Ins.  New  York,  4th  report,  No.  249  ;  //.  granosus  Chapuis,  Mem. 
Soc.  Roy.  Sc.  Liege,  1869,  73  ;  //.  scabripennis  Zimm.,  Tr.  Am.  Ent.  Soc. 
1868,  149;  ?  H.  salebrosus  Eichhoft,  Berl.  Ent.  Zeitschr.  1868,  146. 

5.  H.  cavernosus  Zimm.,  1.  c.  149  ;  ?  H.  scobinosu^  EichhofT,  Berl. 
Ent.  Zeitschr.  1868,  146  ;  Chapuis,  1.  c.  73. 

EichhofT  gives  Carolina  as  the  locality  ;  Chapuis  mentions  Norfolk 
Sound,  which,  being  on  the  Pacific  coast;  makes  the  reference  doubtful. 
Perhaps  the  specimen  came  from  Norfolk,  Virginia,  instead  of  Norfolk 
Sound.  Should  they  prove  to  be  the  same,  the  name  proposed  by  Eichhofi" 
has  prioi'ity  by  a  few  weeks. 

9.  H.  exilis  Chapuis,  1.  c.  20. 

Florida,  one  specimen,  Messrs.  Hubbard  and  Schwarz.  Nearly  related 
to  //.  tenuis,  but  the  prothorax  is  more  coarsely  punctured,  and  the  inter- 
spaces of  the  elytra  are  not  granulate,  but  rugosely  punctured,  and  less 
opaque.     Length  2.5  mm. ;  .10  inch. 

HYLURGOPS  n.  g. 

I  have  separated  as  a  distinct  genus  the  species  referred  to  Erichson's 
sec  )nd  division,  having  the  third  tarsal  joint  broader  and  bilobed,  and  the 
mesosternum  protuberant.  They  are-,  quite  different  in  form  from  true 
Hi/lastes,  and  resemble  DjiidroctowK,  the  prothorax:  b?ing  m  )re  narrowed 
forwards,  and  more  finely  and  denscdy  punctured.  The  basal  margin  of 
the  elytra  is  so  acutely  defined  in  II.  granulatwi  and  pinifex  that  I  should 
place  them  near  Hylurgus,  but  for  the  scutellum,  which  is  not  depressed ; 
and  for  the  deeper  antennal  grooves,  which  remove  them  from  the  group 
of  Ilyluffii.     The  front  tibiae  are  less  coarsely  serrate  than  in  Ilylastes. 

The  species  may  be  thus  distinguished  : 

Prosternal  ridges  acute ;  front  transversely  impressed.  2. 


390  SCOLYTID^. 


[LeConte. 


Prosternal  ridges  indistinct ;  beak  carinate,  front 

not  impressed  ;  color  brown,  elytra  variegated 

with  spots  of  pale  scales,  basal  margin  acute, 

subserrate 1.  granulatus. 

3.  Beak  carinate  ;  basal  margin  of  elytra  subacute, 

subserrate 2.  pinifex. 

Beak  not  carinate  ;  basal  margin  of  elytra  subacute, 

subserrate 3.  rugipennis. 

Beak  not  carinate ;  basal  margin  of  elytra  acute, 

serrate  ;  alternate  interspaces  more  elevated  be- 
hind  4.  subcostulatus. 

1.  H.  granulatus  Lee,  Tr.  Am.  Ent.  Soc.  1868,  175  (Hylastes). 
Oregon  and  California.     The  variegated  spots  of  the  elytra  are  formed  of 

small  pale  scales,  and  were  not  apparent  in  the  two  specimens  upon  which 
my  description  was  based.     Length  5  mm.;  .20  inch. 

2.  H.  pinifex  Fitch,  Noxious  Ins.  New  York,  4th  report,  43,  No.  24g ; 
{Uylaxtes);  Lee,  Tr.  Am.  Ent.  Soc.  1868,  176. 

Lake  Superior,  Canada,  Ohio.     Length  5  mm.;  .20  inch. 

3.  H.  rugipennis  Mann.,  Bull.  Mosc.  1843,  297  {Hylurgus);  ibid,  1853. 
238  (Hylastes);  Lee,  loc.  cit.  176  ;  Chapuis,  1.  c.  76. 

Alaska,  Oregon  and  California.     Length  4-4.5  mm.;  .16-.18  inch. 

4.  H.  subcostulatus  Mann.,  Bull.  Mosc.  1853,  239. 

Oregon  and  Sierra  Nevada  ;  described  by  Mannerheim  from  Alaska. 
Length  4  mm. ;  .16  inch. 

Ilylastes  ruflpes  Eichhoff,  Berl.  Ent.  Zeitschr.  1868,  147;  Chapuis,  1.  c. 
79,  probably  belongs  to  this  genus,  but  is  unknown  to  me. 

Hylastes  cristatus  Mann. ,  Bull.  Mosc.  1853,  239,  from  Alaska,  may  also 
belong  here,  but  is  unknown  to  me. 

SCIERUS  n.  g. 

I  have  separated  under  this  generic  name  a  species  which  agrees  in  gen- 
eral form  with  Hyliirgops,  but  differs  from  it  and  Hylastes  by  the  front  coxse 
being  widely  separated  by  the  prosternum.  The  form  of  the  third  joint 
of  the  tarsi  is  intermediate,  it  being  not  as  deeply  bilobed  as  in  Hylur- 
gops,  but  broader  than  in  Ilylasten.  It  agrees  with  both  in  the  antennfse, 
vvliich  have  the  funicle  7  jointed,  and  the  club  ovate-pointed,  with  the  first 
joint  smooth,  shining,  and  nearly  as  long  as  the  others  united.  The  tibia} 
are  dilated  and  broadly  serrate  as  in  Ilylmtes;  the  terminal  mucro  is  short. 
Tlie  first  and  second  ventral  segments  are  equal,  and  Ihe  third  and  fourth 
are  shorter;  the  fifth  is  as  long  as  the  second.  The  other  characters  are 
those  of  the  tribe,  and  it  is  not  necessary  to  repeat  them. 

1.  S.  annectens,  n.  sp. 

Oblong  cylindrical,  dark  brjwn,  opaiue,  thinly  clothed  with  very  short 
depressed  yellow  hairs.      Beak  flat,   punctured  and  hairy,    about   twice 


LeConte.] 


ANTHRIBIU^.  391 


as  wide  as  long,  not  impressed  or  carinate;  head  convex,  punctures  becom- 
ing finer  and  obsolete  on  the  occiput.  Prothorax  one-third  wider  than  long, 
rounded  on  the  sides,  narrowed  in  fronS  faintly  impressed  but  not  con- 
stricl^ed  on  the  sides,  nearly  truncate  in  front  and  at  base;  densely  and 
strongly  punctured  with  a  narrow  dorsal  line,  \vhich  is  obsolete  in  some 
s;3ecimens.  Scutellum  rounded  behind,  not  depressed.  Elytra  wider  tlian 
the  protliorax;  basal  margin  rather  acute,  finely  serrate;  striae  deeply  im- 
pressed, punctured;  interspaces  wider  than  the  stria3,  scabrous  with  trans- 
verse rugosities,  becoming  asperate  on  tlie  sides  towards  the  tip;  the 
interspaces  become  more  convex  on  the  declivity,  and  the  third  and 
ninth  unite  near  the  tip,  and  then  join  the  first  so  that  the  second  is  a  little 
shortened.  Beneath  coarsely  and  sparsely  punctured  and  pubescent,  and 
less  opaque;  legs  lighter  brown.     Length  3.6  mm. ;  .14  inch. 

Anticosti  Island,  Gulf  of  St.  Lawrence,  W.  Couper;  British  Colum- 
bia and  Vancouver  Island,  G.  R.  Crotch.     No  sexual  difference  observed. 

Family  X.  ANTHRIBID^. 

Mentum  large,  deeply  emarginate  in  front,  closely  connate,  (except  in  the 
group  Hormisci,)  with  the  gular  peduncle,  which  is  broad  and  short; 
buccal  fissures  consequently  narrow,  only  partially  exposing  the  base  of  the 
maxilhc;  ligula  large,  corneous,  narrowly  emarginate  at  tip;  palpi  3  jointed, 
inserted  at  the  sides  of  the  lower  face  of  the  ligula,  distant,  slender,  cylin- 
drical, longer  than  in  other  Rhynchophora  and  flexible,  as  in  normal  Cole- 
optera  and  in  Bhinomacendce;  last  joint  elongated,  narrower  at  the  tip. 

Maxilte  visible  in  the  narrow  buccal  fissures,  with  two  narrow  lobes, 
usually  rounded  and  ciliate  at  tip;  palpi  slender,  4  jointed,  with  the  last 
joint  longer  and  narrower  at  the  tip. 

Mandibles  flattened  on  the  upper  surface,  curved,  pointed  or  emarginate 
at  tip. 

Antennae  inserted  usually  under  the  sides  of  the  front,  rarely  upon  the 
front.  They  are  11-jointed,  slender  and  not  geniculate;  the  first  joint 
is  stouter,  but  scarcely  longer  than  tlie  second;  joints  3-8  slender,  pubes- 
cent; 9-11  broader,  more  or  less  compressed,  finely  pubescent  and  sensitive. 
The  antennae  of  the  (^  are  sometimes  mucli  longer  than  the  body.  The 
outer  joints  form  a  compact  oval  club  in  Hormiscus. 

Head  prominent,  not  deflexed;  beak  broad,  flat,  sometimes  so  short  as  to 
be  indistinct;  never  cylindrical  or  sle^nder,  and  never  separated  from  the 
front  by  a  transverse  impression.  Eyes  moderate  in  size,  not  very  finely 
granulated,  rounded,  sometimes  slightly  emarginate  in  front.  Labrum  dis- 
tinct, quadrate,  fringed  with  liairs-     Gular  suture  completely  obliterated. 

Prothorax  of  varied  form,  usually  trapezoidal  and  truncate  in  front;  rarely 
somewhat  rounded  over  the  head  iChoragus);  base  truncate,  with  a  trans- 
verse, elevated  line  which  is  either  aiatebasal  (Tropiderini)  or  entirely 
basal;  this  line  is  abruptly  bent  forwards  at  the  sides,  and  forms  a  more  or 
less  abbreviated  side  margin. 


392  ANTHRIBID^.  LLeConte. 

The  prosternal  sutures  are  entirely  obliterated,  as  is  also  the  short  suture 
behind  the  posterior  point  of  the  prostei'num.so  that  the  under  surface  con- 
sists of  but  one  piece.  The  coxal  cavities  are  rounded,  and  narrowly  sep- 
arated. 

Mesosternum  flat,  triangular  behind,  with  the  point  rounded,  and  sepa- 
rating the  middle  coxa?;  cavities  rounded,  epiiuera  transverse,  oblique,  not 
attaining  the  coxae. 

Metasternum  long,  side  pieces  narrow,  or  moderate  in  width,  wider  in 
front,  with  the  outer  angle  prolonged  forwards;  in  many  genera  there  is  a 
transverse  impression  in  front,  simulating  a  suture. 

Elytra  conjointly  rounded  behind,  and  forming  a  small  sutural  fold, 
which  fits  into  a  deep  emargination  of  the  pygidium  ;  fold  of  the  inner  sur- 
face acute,  not  prolonged  much  behind  tlie  middle.  Epipleun^  distinct. 
Tlie  stripe  are  ten  in  number,  witli  a  short  scutellar  one  as  in  Carabidce; 
this  scutellar  stria  is  usually  about  one-fourth  the  length  of  the  elytra,  and 
does  not  connect  itself  with  the  sutural  stria. 

Abdomen  with  five  free,  and  sometimes  nearl}'  equal  ventral  segments; 
sutures  straight;  intercoxal  process  triangular,  acute  or  rounded  in  front; 
dorsal  segment  membranous,  except  the  pygidium,  which  is  corneous,  de- 
clivous and  exposed  ;  no  anal  segment  in  the  t^. 

Anterior  coxae  narrowlj'  separated,  globose;  middle  coxae  moderately  sep- 
arated, rounded;  hind  coxae  transversa,  not  prominent,  never  very  widely 
separated. 

Legs  slender,  front  pair  sometimes  elongated  in  rj^;  tibia;  truncate  at  tip, 
without  spurs  or  hooks. 

Tarsi  ])rush  like  beneath,  4-jointed;  second  joint  triangular,  emarginate; 
third  joint  bilobed,  sometimes  large,  sometimes  small;  fourth  joint  slender 
with  divergent  claws,  wliich  are  either  simple  or  toothed. 

Our  genera  I'epresent  four  tribes: 
Antennae  inserted  at  the  sides  of  the  beak; 

Prothoracic  ridge  not  basal. TRUPlDERlxi. 

Prothoracic  ridge  basal banitkoi>ixi. 

Antennae  Inserted  on  the   front;  prothoracic  ridge 
basal ; 

Elytra  striate  as  usual ak.kocerixi. 

Elytra  not  striate xe.\or€HEST1XI. 

Tribe  I.     tropiderini. 

The  genera  of  this  tribe  are  sufficientl}^  distinguished  by  the  position  and 
form  of  the  prothoracic  ridge,  which  is  remote  from  the  base,  more  or  less 
sinuous,  and  flexed  obliquelj'  at  the  sides.  The  antennae  are  situated  under 
the  lateral  edge  of  the  beak,  which  is  sometimes  flattened  and  expanded  so 
that  the  antennal  cavi'.ies  are  partially  covered. 
Three  groups  occur  in  our  fauna: 

Eyes  entire,  su'ure  of  mentum  oblitera*ed 2, 

"     emarginate;  suture  of  mentum  distinct Ilorsnlsci. 


LeConte.J 


TROPIDERINI.  393 


3.  Sides  of  beak  not  dilated;  antennae  very  long ischnoe«ri. 

"  "      dilated  over  the  autennal  cavities Tropideres. 

Group  I.     isclinocerl. 

Beak  longer  than  the  head,  dilated  at  tip;  antennal  cavities  large, lateral, 
limited  above  by  a  small,  elevated  line,  which  descends  to  the  inferior  mar- 
gin of  the  eyes.  Eyes  longitudinal,  elliptical,  rather  coarsely  granulated. 
AntenniE  very  slender,  longer  than  the  body  in  J^;  two-thirds  as  long  in 
$  ;  first  joint  very  short;  second  twice  as  long  as  first,  and  more  than  one- 
half  as  long  as  third;  9-11  broader,  forming  a  compressed,  loose,  oval  club. 
Tarsi  with  the  first  joint  long;  second  triangular,  emarginate,  with  pro- 
longed angles;  third  as  wide  as  the  second,  bilobed;  claws  armed  with  a 
long,  acute  tooth  at  the  middle. 

ISCHNOOERUS  Schdnh. 

1.  I.  infuscatus  Fahraeus,  Sch.  Cure,  v,  192;  Meconemus  tuiercidatus 
Imhoff  and  Labram,  Gen.  Cure.  1,  40. 

Mexico,  extending  into  the  Southern  States  as  far  as  South  Carolina. 
In  the  Mexican  specimens  the  pubescence  is  som?what  paler  and  more 
•dense;  it  is  Isclinocerihs  macrocerus  of  Dejean's  Catalogue. 

This  is  a  narrow  species,  with  the  base  of  the  prothorax  truncate;  there 
is  a  trace  of  a  second  transverse  raised  line  between  the  base  and  the  ante- 
basal  ridge  ;  the  latter  is  situated  about  one-fifth  from  the  base,  slightly 
sinuate,  and  forming  an  obtuse  angle  at  the  middle;  flexed  obliquely  for- 
wards on  the  side,  where  a  distinct  lateral  angle  is  formed  behind  the  middle. 
The  pubescence  is  yellowisli  brown,  mixed  with  pale  gray,  and  does  not 
exhibit  any  distinct  pattern.     Length  6.8-10  mm. ;  .27-.40  inch. 

Group.   II.     Troplderes. 

The  sides  of  the  beak  in  the  insects  of  tliis  group  are  dilated  over  the 
an'ennal  cavities,  which  are  therefore  not  visible  from  above.  The  form 
of  the  antebasal  ridge  differs  in  each  genus,  and  in  conjunction  with  the 
antennal  club  and  tarsal  claws  affords  easy  characters  for  distinguishing  the 
genera.     The  eyes  are  entire,  either  rounded  or  oblique. 

Antennal  club  narrow,  not  compressed .  2. 

"  "    oval,  compressed 3. 

2.  Pro'horacic  ridge  strongly  angulated  and  touching 

the  base  at  the  middle  ;  claws  ?.\m\i[e GONOTROPIS. 

Prothoracic  ridge  straight  at  the  middle,  base  deeph' 

biemarginate  ;  claws  acutely  toothed EURYMYCTER. 

3.  Eyes  oblique,  slightly  oval,  beak  short TROPIDERES. 

Ej'es  rounded,  beak  longer,  antennae  (^  very  long..     ALLANDRUS. 

GONOTROPIS  n.  g. 
Body  rather  robust  and  convex.     Beak  longer  than  the  head,  gradually 
nari'owed  to  the  middle,  then  widened  to  the  tip,  which  is  truncate  with 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.   2x 


394  ANTHRIBII).^.  [LeConte. 

a  very  small  emargination  at  the  middle ;  upper  surface  slightly  uneven. 
Eyes  situated  well  up  on  the  head,  separated  by  a  space  not  greater  than 
diameter  of  each,  rounded,  moderately  convex,  finely  granulated.  Anten- 
nal  cavities  deep,  small,  near  the  tip  of  the  beak,  visible  only  from  the  side 
or  from  beneath.  AntenniE  half  as  long  as  the  body;  first  joint  s'outly 
clavate,  second  joint  shorter,  3-8  each  equal  in  length  to  the  first,  but  more 
slender ;  ninth  a  little  longer,  gradually  thicker  externally,  tenth  trans- 
verse, eleventh  oval-pointed,  the  three  forming  an  elongate  but  not  com- 
pressed club.  Mentum  with  the  lobes  broadly  rounded  at  tip.  Prothorax 
narrowed  from  near  the  base  forwards  ;  ante-basal  ridge  strongly  curved 
each  side,  with  the  concavity  directed  backwards,  so  as  to  form  an  angle  at 
the  middle,  nearly  touching  the  base,  which  is  truncate  ;  near  the  sides 
this  ridge  is  flexed  obliquely  forwards,  then  on  the  sides  it  is  bent  forwards, 
and  runs  somewhat  obliquely  as  far  as  the  middle  ;  the  prothorax  is  deeply 
channeled  behind  the  middle,  and  this  channel  is  crossed  at  its  anterior 
end  by  a  short  transverse  impression.  Elytra  wider  than  the  base  of  the 
prothorax,  base  straight  for  two-thirds  of  its  width,  then  obliquely  back- 
wards leaving  a  scutellar  excavation.  Scutellum  small,  elevated,  with  a 
deep  fovea  behind.  Disc  of  the  elytra  with  a  large  elevation  near  the  base 
of  the  third  interspace,  which  is  also  uneven  behind  ;  the  fifth  and  seventh 
are  slightly  uneven  behind  the  middle.  The  first  joint  of  the  tarsi  is 
longer,  second  triangular,  emarginate,  third  a  little  narrower,  bllobed; 
claws  simple,  divergent. 

1.  G.  gibbosus,  n.  sp. 

Subovate,  convex,  black,  without  lustre,  beak,  and  sides  of  head  below  the 
eyes,  densely  clothed  with  fine  white  pubescence.  Prothorax  deeply  chan- 
neled from  before  the  middle  to  the  base,  and  with  a  short  deep  transverse 
line  at  the  middle  ;  the  edges  of  the  cruciform  impression  thus  produced 
are  clothed  Avlth  white  pubescence  ;  broadly  concave  near  the  sides  ad- 
jacent to  the  transverse  ridge.  Scutellum  white-pubescent.  Elytra  with 
fine  punctured  striae  and  very  densely  finely  punctured  Interspaces  ;  a  large 
saddle  shaped  spot  of  white  pubescence  extends  from  the  middle  forwards 
becoming  narrowed  to  the  space  between  the  third  interspaces  near  the 
base,  which  it  attains  ;  there  are  also  some  smaller  white  and  black  pubes- 
cent spaces  behind  the  middle.  Beneath  pruinose  with  fine  whitish  pubes- 
cence.    Length  5  ram. ;  .20  inch. 

One  specimen,  Colorado. 

EURYMYCTER  n.  g. 

The  well-known  species  upon  which  this  genus  is  established,  represents 
in  our  fauna  the  European  Platyrhinun,  but  dlff'ers  by  the  beak  being 
narrower  than  the  head  and  strongly  dilated  at  the  tip  ;  It  is  uneven  above, 
with  three  wide  grooves  and  two  ridges,  extending  as  far  as  between  the 
antennas,  where  they  end,  leaving  the  dilated  part  of  the  beak  flat ;  the 
sides  are  extended  over  the  antennal  cavities,  which  are  small  and  visible 
only  from  the  sides  and  beneath.     The  mandibles  are  flat,   acute,  and 


LeConte.] 


TROPIDERINI.  895 


toothed  on  the  inner  side  ;  eyes  rounded,  finely  granulated.  The  antennae 
are  half  as  long  as  the  body;  first  and  second  joints  a  little  stouter,  and 
nearly  equal ;  3-8  longer,  shining  ;  ninth  of  the  same  length,  gradually 
thicker  externally  and  sensitive  ;  tenth  about  one-third  shorter,  oval, 
longer  than  v^^ide,  sensitive;  eleventh  elongate-ovate,  pointed,  as  long 
as  the  ninth  and  sensitive ;  these  joints  are  not  compressed,  and  form  an 
elongate  loose  club.  Mentum  with  the  lobes  narrowly  rounded,  and  sub- 
acute. Prothorax  very  uneven  with  large  approximate  fovea; ;  broadly 
transversely  impressed  before  the  middle  ;  antebasal  ridge  nearly  straight, 
about  one-fifth  from  the  base,  which  is  strongly  biemarginate  for  the  re- 
ception of  the  bases  of  the  elytra  ;  at  the  sides,  the  ridge  is  bent  at  an 
obtuse  angle,  and  descends  obliquel}%  forming  an  obtuse  lateral  protuber- 
ance about  the  middle  ;  in  front  of  this  the  prothorax  is  gradually  ob- 
liquely narrowed.  The  elytra  are  wider  than  the  prothorax,  uneven  with 
short  transverse  rugosities  and  elevations;  striie  composed  of  large  distant 
punctures  ;  base  separately  rounded  and  finely  margined,  not  excavated 
near  the  scutellum,  but  obtusely  elevated  from  the  first  to  the  fifth  stria. 
The  alternate  interspaces  are  wider  and  more  convex.  The  first  joint  of 
the  tarsi  is  long,  the  second  triangular  and  eraarginate  ;  third  not  narrower 
than  second,  bilobed  ;  claws  toothed  at  the  middle.  First  and  fifth  ventral 
segments  longer  than  the  others. 

1.  E.  fasciatus  ;  Ifacrocephalus  fasc.  Oliv.,  Ins.  iv,  80,  9  ;  pi.  i,  f,  9  ; 
Anthribus  fuse.  Kirby,  Fauna  Bor.  Am.  iv,  206. 

Northern  States,  Canada,  Vancouver's  Island.  A  large  species  con- 
spicuous by  the  beak  and  a  broad  transverse  band  behind  the  middle  of 
the  elytra  being  clothed  with  snow-white  hair.  Length  6.5-9.5  mm-;  .25-.37 
inch. 

TROPIDERES   Schonh. 

1.  T.  bimaculatus  Lee,  Proc.  Ac.  Nat.  Sc.  Phila.  vii,  218;  Macroceph- 
alus  bim.  Oliv.,  iv,  80,  14;  pi.  2,  f.  19;  Anthribus  quadrinotatus  Say,  Journ. 
Ac.  Nat.  Sc.  Phila.  v,  249;  ed.  Lee,  ii,  314. 

New  York,  Wisconsin.  A  small,  rather  slender  species,  easily  known 
by  the  white  humeral  spot  and  transverse  subsutural  spot  behind  the  mid- 
dle; the  beak  is  broad,  not  longer  than  the  head;  the  prothorax  is  feebly 
and  obtusely  tuberculate  at  the  sides.  The  e^^es  are  more  widely  separated, 
and  more  oblique  than  in  the  two  preceding  genera,  The  antebasal  ridge 
is  obtusely  angulate  at  the  middle  with  the  angle  directed  forwards,  and 
obtusely  flexed  on  the  sides.     Length  4.7  mm.;  .18  inch. 

Gremminger  and  Harold  have  incorrectly  referred  A.  cornutus  Say  to  this 
genus;  it  will  be  found  below  under  Anthribus. 

2.  T.  rectus,  n.  sp. 

Oval-cylindrical,  dark  brown,  with  spots  of  j'ellow  pubescence,  and  upon 
the  elytra  also  a  few  white  dots.  Head  and  prothorax  opaque,  very  densely 
and  rather  finely  punctured;  antebasal  ridge  nearly  straight  and  parallel 
with  the  base,  suddenly  flexed  at  the  sides,  and  extending  nearly  to  the 


396  ANTHKIBID^.  [LeConte. 

middle;  the  angle  near  the  base  at  the  flexure  appears  almost  rectangular; 
sides  obliquely  and  broadly  rounded.  Elj^tra  with  striae  of  large  punctures, 
interspaces  even,  alternately  variegated  with  distant,  small  white  dots;  a 
spot  of  yellow  and  white  hair  covers  the  base  of  the  4-7  interspaces.  Be- 
neath thinly  clothed  with  fine  gray  hair;  legs  mottled  with  gray  hair;  an- 
tennte  testaceous  with  dusky  club,  slender,  extending  to  the  base  of  the 
prothorax.     Length  4  mm. ;  .  15  inch. 

Enterprise,  Florida,  two  specimens;  Mr.  E.  A.  Schwarz.  Quite  different 
in  appearance  from  the  preceding,  though  presenting  no  special  structural 
peculiarities. 

ALLANDRUS  Lee. 

I  have  established  this  genus  upon  a  small  Canadian  species  remarkable 
by  the  sexual  differences  The  form  is  as  slender  as  in  Tropideres;  the  beak 
is  longer  than  the  head,  narrower  at  the  base,  slightly  dilated  at  the  tip;  in 
the  male  it  is  furnished  with  a  very  high  crest,  gradually  fading  out  in 
front;  in  the  $  only  an  obsolete  carina  is  seen.  The  antennae  in  the  9  ex- 
tend to  the  base  of  the  elytra,  and  are  just  as  in  Tropideres,  except  that  the 
second  joint  is  thinner;  joints  9-11  form  an  oval,  compressed  club.  In  the 
(^  the  antennae  are  as  long  as  tlie  body;  joints  3-8  elongated,  and  a  little 
thickened  at  tip  ;  9-11  flattened,  forming  a  loose  club.  The  prothorax  as 
in  Tropideres,  but  not  tuberculate  at  the  sides;  transverse  ridge  remote 
from  the  base,  feebly  curved,  and  subsinuate;  flexed  obliquely  forward  at 
the  sides.  Eyes  rounded,  lateral,  prominent,  finely  granulated.  Tarsi 
more  slender  than  usual;  third  joint  not  as  wide  as  the  second;  claws 
appendiculate  rather  than  toothed.  Mentum  with  the  lobes  wide,  nar- 
rowly rounded  at  tip;  ligula  large  and  coraceous,  filling  up  the  emargi- 
na'ion  of  the  mentum  more  than  in  the  preceding  genera,  (somewhat  as  in 
certain  Lehiini). 

1.  A.  bifasciatus,  n.  sp. 

Blackish  brown,  with  a  brassy  tinge;  head  and  prothorax  densely  punc- 
tured, thinly  clothed  with  cinereous  hair;  the  latter  longer  than  wide,  nar- 
rowed at  tip  and  base;  elytra  with  punctured  striae,  and  two  ill-defined, 
broad  bands  of  cinereous  hair;  the  anterior  one  extending  along  the  suture 
to  the  base;  scutellum  white.     Length  4.3  mm. ;  .17  inch. 

Canada,  one  pair,  Mr.  Billings;  Illinois,  one  9)  Mr.  B.  D.  Walsh.  This 
is  Tropideres  ohlongas\Y)Q].  Cat. 

Group  III.      Hormisci 

The  genera  upon  which  I  have  founded  this  group,  seem  sufiiciently 
distinct  from  the  other  Corrhecerides  of  Lacordaire  to  be  separated  from 
them.     I  would  define  it  by  the  following  characters: 

Beak  not  dilated  at  the  sides  over  the  antennal  cavities.  Eyes  emargi- 
nate,  not  finely  granulated.  Prothoracic  ridge  antebasal,  curved  or  ob- 
tusely angulate  backwards  at  the  middle,  flexed  obliquely  forward  at  the 
sides.  Tarsi  with  the  first  joint  long;  second  triangular, scarcely  emarginate; 


LeConte.] 


TROPIDEBIXI.  397 


third  bilobed,  not  narrower,  but  shorter  than  the  second;  claws  acutely- 
toothed  at  the  middle.  Mentum  transverse,  less  deeply  emarginate  than 
usual,  with  the  emargination  nearly  filled  by  the  broad  basal  piece  of  the 
ligula;  transverse  suture  between  the  gula  and  mentum  distinct. 

Antennal  club  3-jointed 2. 

"  "    solid,  sensitive  only  at  tip HORMISCUS. 

2.  Eyes  feebly  emarginate;  claws  indistinctly  toothed. .  TOXOTROPIS. 
Eyes  strongly  emarginate  ;  claws  cleft  almost  to  the 
base GONOPS. 

HORMISCUS  Wollaston. 

In  this  genus  the  form  is  cylindrical  and  less  slender  than  in  Tropideres. 
The  beak  is  broad  and  flat,  not  longer  than  the  head,  with  the  antennal 
cavities  lateral,  not  covered  by  the  sides.  Eyes  rather  large,  less  finely 
granulated,  oblique,  feebly  emarginate;  antennas  alike  in  both  sexes, hardly 
extending  to  the  base  of  the  prothorax,  club  oval,  apparentlj'  solid.  Pro- 
thorax  scarcely  longer  than  wide,  gradually  narrowed  in  front;  more  rap- 
idly narrowed  behind  the  transverse  carina,  which  is  slightly  oblique,  par- 
allel with  the  base,  and  ends  each  side  in  a  lateral  cusp. 

1.  H.  saltator,  n.  sp. 

Brownish  black,  mottled  with  spots  and  bands  of  cinereous  pubescence; 
prothorax  densely  and  finely  punctured;  elytra  with  rows  of  large  and  deep 
punctures,  about  tv^ice  as  long  as  the  prothorax.  Length  1.2-1.6  mm. ;  .05 
-.07  inch. 

Middle  and  Western  States,  not  rare;  I  have  adopted  the  specific  name 
with  which  it  is  labeled  in  the  collection  of  the  late  Dr.  Zimmermann. 
There  are  few  prominent  characters  in  this  singular  little  insect,  except  such 
as  are  of  generic  value.  It  agrees  with  the  Galipagoan  H.  variegattis  in 
having  the  transverse  ridge  of  the  prothorax  broadly  angulated  at  the 
middle,  but  the  latter  differs,  according  to  description,  in  color,  and  in 
having  the  elytra  indistinctlj'  punctato-striate.  The  specimens  vary  greatly 
in  appearance,  according  as  the  pubescence  is  more  or  less  abraded.  In  the 
best  preserved  individual,  the  prothorax  is  mottled,  and  the  elytra  also,  but 
the  mottlings  of  the  latter  are  arranged  so  that  a  subscutellar  space  on  each 
elytron,  and  a  broad,  post-medial  band  not  reaching  the  margin,  are  left 
free  from  cinereous  spots.  The  posterior  transverse  carina  of  the  prothorax 
is  slightly  oblique,  forming  a  very  obtuse  angle  backwards  on  the  median 
line,  and  projects  at  the  side  as  a  small,  sharp  cusp. 

TOXOTROPIS  n.  g. 

This  genus  is  closely  related  to  Hormiscus,  and  in  fiict  only  differs  from 
it  by  the  antennal  club  which  is  elongate-oval,  compressed,  and  composed 
of  three  distinct  joints  equal  in  length.  The  eyes  are  rather  finely  granu- 
lated, and  only  feebly  emarginate;  the  antennal  cavities  are  small  and 
rounded.     The  antebasal  ridge  is  regularly  curved  in  an  arc  of  ti  circle,  for 


39S  A^N^THRIBID^. 


[LeConte. 


the  greater  part  of  its  length,  but  directed  transversely  towards  the  sides, 
and  not  flexed  forwards;  claws  feebly  toothed  at  the  middle. 

1.  T.  pusillus,  n.  sp. 

Of  the  same  size,  form  and  color  as  Hormiscus  saltator,  brown,  varied 
with  patches  of  fine  white  pubescence;  eyes  larger  and  more  prominent; 
prothorax  more  finely  punctured.  Elytra  with  striae  of  rather  large  punc- 
tures; interspaces  even.     Length  1.3  mm.;  .05  inch. 

Tampa,  Florida,  one  specimen,  Mr.  E.  A.  Schwarz. 

2.  T.  approximatus,  n.  sp. 

Of  the  same  form,  color  and  sculpture  as  T.  pusillus,  but  the  antebasal 
ridge  is  less  curved,  and  therefore  is  more  parallel  with,  and  nearer  to  the 
base  than  in  that  species.  The  hind  angles  near  the  base  are  therefore  less 
prominent,  and  the  body  is  somewhat  stouter.     Length  1.5  mm.;  .06  inch. 

One  specimen,  San  Diego,  Cal. ;  Mr.  G.  R.  Crotch. 

GONOPS  n.  g. 

This  genus  is  also  related  to  the  two  preceding,  but  differs  from  Hormis- 
cus by  the  autennal  club  compressed,  and  composed  of  three  joints  equal 
in  length;  the  antennal  cavities  are  small,  and  the  eyes  are  deeply  emargi- 
nate  and  rather  finely  granulated.  It  differs  from  both  by  the  claws  being 
cleft  almost  to  the  base,  with  the  inner  portions  converging  as  in  Anthono- 
mus.  It  also  differs  from  all  the  other  genera  in  our  fauna  by  the  middle 
and  hind  tibiis  being  armed  with  a  small  mucro  or  spine  at  the  inner  side 
of  the  tip.  The  form  is  a  little  stouter  than  in  Hormiscus;  the  antebasal 
ridge  of  the  prothorax  is  curved  in  the  arc  of  a  circle;  towards  the  sides  it 
is  nearly  transverse,  and  is  not  flexed  forwards. 

1.  Gr.  flssunguis,  n.  sp. 

Oblong,  rather  robust,  brown,  mottled  with  small  spots  of  yellowish 
gray  pubescence.  Head  and  prothorax  opaque,  very  densely  and  finely 
punctured ;  the  latter  a  little  wider  than  long,  narrowed  from  the  end  of 
the  ridge  forwards,  but  scarcely  rounded  on  the  sides;  rapidly  and  con- 
cavely  narrowed  behind  the  ridge,  the  end  of  which  forms  an  acute  lateral 
angle.  Elytra  not  wider  than  the  widest  part  of  the  protharax,  convex; 
striae  composed  of  moderate  sized  punctures,  interspaces  very  finely  punc- 
tulatc.     Length  2.5  mm.;  .10  inch. 

Three  specimens  from  Big  Trees,  California;  sent  by  Mr.  James  Behrens 
to  Dr.  Horn. 

Tribe  II.    basitropim. 

The  only  characters  of  a  general  kind  which  can  be  given  to  distinguish 
this  from  the  other  tribes,  are  that  the  antennae  are  inserted  under  the 
sides  of  the  beak,  and  that  the  prothoracic  ridge  is  quite  basal,  causing  the 
surface  behind  it  to  become  perpendicular ;  it  consequently  attains  the 
hind  angles,  and  is  there  flexed  forwards,  not  obliquely  and  at  an  obtuse 
angle,  but  rectangularly.  As  a  farther  consequence  of  this  arrangement, 
the  basal  margin  of  the  elytra  is  acute. 


LeConte.J 


BASITROPINI.  309 


Our  species  represent  but  three  groups  : 

Beak  with  parallel  or  nearly  parallel  sides 2. 

"     narrower  in  front,   trapezoidal Braohytarsl. 

2.  Tarsi  with  third  joint  wider,  deeply  bilobed,  visible  from 

alj»ve Aiitliribl. 

Tarsi  with  the  third  joint  bilobed,  not  visible  from  above    Cratopares. 

Group  I.     Anthribl. 

These  species  are  sufficiently  distinguished  from  Oratopares  by  the  third 
joint  of  the  tarsi  being  not  narrower  than  the  second,  and  quite  visible 
from  above  ;  the  second  joint  is  broad,  triangular  and  rather  flat,  emargi- 
nate  at  tip.  The  sides  of  the  beak  partly  cover  the  antennal  cavities,  which 
are  large  and  deep,  and  but  slightly  visible  from  above.  The  antennae  are 
sometimes  very  long  in  the  ^T,  and  the  first  joint  is  stouter  and  shorter 
than  usual.  The  tarsal  claws  vary  according  to  genus.  Except  in  ^4/1- 
thribus  the  antennal  cavities  are  somewhat  distant  from  the  eyes. 
Hind  angles  of  the  prothorax  not  directed  out- 
wards    2. 

Eyes  emarginate,  hind  angles  of  prothorax  di- 
rected outward  ;  front  coxiE  contiguous EUSPHYRUS. 

2.  Front  coxae  contiguous  or  nearly  so 3. 

"         "    well  separated  by  the  prosternum.  4. 

3.  Claws  almost  cleft,  body  elongate-cylindrical, 

eyes  emarginate PHCENIOOBIUS. 

Claws     feebly    appendiculate,    body    stout  sub- 
cylindrical,  eyes  oval PIEZOCORYNUS. 

4.  Eyes  rounded ANTHRIBUS. 

Eyes  broadly  emarginate TOXONOTUS. 

EUSPHYRUS  n.  g. 

The  beak  is  shorter  than  the  head,  broader  than  long,  slightly  narrowed 
at  base,  obliquely  narrowed  in  front  of  the  widest  part,  not  emarginate  at 
tip,  but  bordered  as  usual  with  a  coriaceous  clypeus  ;  eyes  moderate,  ovate, 
broadly  emarginate  in  front,  not  coarsely  granulate  ;  antennae  not  longer 
than  head  and  thorax  ;  first  and  second  joints  thicker  not  elongated,  3-6 
slender,  gradually  a  little  shorter,  seven  and  eight  slightly  thicker,  9-11 
equal  in  length,  forming  a  loose  compressed  club.  Prothorax  wider  at 
base  than  its  length,  gradually  narrowed  from  the  base,  feebly  rounded  at 
the  sides,  not  projected  over  the  head  in  front,  but  truncate  ;  hind  angles 
acute,  prominent  laterally;  transverse  ridge  absolutely  basal,  scarcely  ex- 
tending along  the  sides.  Elytra  cylindrical,  deeply  punctato-striate,  not 
wider  than  the  prothorax,  and  about  twice  as  long.  Front  coxae  promi- 
nent, contiguous;  tarsi  as  long  as  the  tibiae  ;  first  joint  as  long  as  the  others 
united,  third  joint  not  narrower  than  the  second,  very  short ;  claws  with 
a  small  acute  tooth  near  the  base.  Mentum  more  narrowed  behind  than 
usual,  buccal  fissures  wider. 


400  AXTHEIBID^. 


[LeConte. 


1.  Eu.  "Walshii  n.  sp. 

Elongate  oval,  subc^^lindrical,  brownish -black,  opaque,  clothed  with  fine 
cinereous  pubescence,  and  mottled  with  patches  of  yellowish-white  hair  ; 
head  and  prothorax  densely  and  finelj^  punctured,  the  latter  feebly  bisinuate 
at  base,  with  the  hind  angles  acute,  divergent ;  elytra  with  deep  strongly 
punctured  strife,  disc  broadly  impressed  transversely  about  one  fourth  the 
length  fi'om  the  base  ;  antennae  at  base,  tibiie  and  tarsi  dark  testaceous. 
Length  3.2  mm.;  .13  inch. 

One  specimen,  Illinois  ;  B.  D.  "Walsh.  This  species  has  the  general  ap- 
pearance of  Brachytarsus,  and  without  examination  of  the  characters  of 
the  genus  and  group  might  readily  escape  recognition. 

PHCENICOBIUS  n.  g. 

Body  elongate-cylindrical.  Beak  about  as  long  as  wide;  sides  acutely 
elevated  in  the  (^,  but  less  so  in  $, limiting  the  antennal  cavities  which  are 
large  and  deep,  extending  nearly  to  the  tip,  but  not  limited  behind,  and  not 
reacliing  the  eyes;  the  beak  is  emarginate  in  front,  and  finely  carinate,  the 
carina  terminating  behind  in  an  angulated  impressed  line.  Eyes  coarsely 
granulated,  rounded,  somewhat  transverse,  broadly  emarginate  in  front.  An- 
tennas ((5^)  much  longer  than  the  body;  first  joint  thick,  one-half  longer 
than  wide;  second  one-half  the  length,  and  much  thinner;  3-5  very  long, 
equal,  extending  to  the  second  ventral  suture;  C-9  gradually  a  little  shorter, 
densely  fringed  beneath  with  short,  fine,  curled  hairs;  10-11  together  longer 
than  ninth,  not  thicker,  similarly  fringed;  11th  pointed  and  slightly  curved. 
Mentum  with  the  lobes  rather  acute  at  tip,  and  the  bottom  of  the  emargina- 
tion  straight.  Prothorax  longer  than  wide,  narrowed  in  front  of  the  middle 
and  slightly  rounded  on  the  sides;  basal  ridge  flexed  rectangularly  at  the 
sides,  and  extending  a  little  in  front  of  the  middle;  inferior  basal  margin, 
(on  the  perpendicularly  declivous  face  which  is  adapted  to  the  base  of  the 
elytra),  finely  crenulate.  Elytra  not  wider  than  the  base  of  the  prothorax, 
margined  at  base;  scutellum  small,  rounded,  not  depressed;  striae  composed 
of  large  punctures,  interspaces  nearly  smooth. 

Front  coxae  very  narrowly  separated  by  the  prosternum.  Tarsi  with  the 
first  joint  not  longer  than  the  second  and  third;  second  broadly  triangular, 
with  the  apical  angles  prolonged;  third  joint  still  wider,  excavated  above 
for  the  articulation  of  the  next  joint,  but  scarcely  emarginate  beneath, 
forn)ing  a  broad  cushion  as  in  certain  Calandridm,  not  less  dilated  in  9 
than  (j^;  claws  with  a  long,  basal  tooth,  causing  them  to  appear  almost  cleft 
as  in  Anthonomus.  The  ventral  segments  gradually  diminish  in  length;  the 
fifth  is  broadly  emarginate;  the  pygidium  is  channeled  more  deeply  than 
usual,  and  the  groove  extends  nearly  to  the  tip. 

The  antennae  of  the  9  are  three-fourths  as  long  as  the  body;  the  joints 
are  proportioned  relatively  as  in  the  J^,  but  the  last  three  (9-11 )  are  broader, 
forming  a  loose,  elongate  club,  which  is  slightly  fringed  beneath.  The  other 
joints  are  not  fringed. 


Leconte]  BASITROPINI.  401 

1.  P.  Chamaeropis,  n.  sp. 

Elongate-cylindrical,  brown,  mottled  with  fine  pubescence  of  gray,  yel- 
low, fulvous  and  black  colors;  bead  and  prothorax  coarsely  punctured; 
elytra  with  the  first  and  alternate  interspaces  slightly  more  convex,  tessel- 
lated with  black  and  yellow;  the  intervening  spaces  with  cinereous  hair. 
Under  surface  mottled;  metasternum  densely  clothed  with  yellowish-white 
pubescence.  Legs  and  antennae  also  mottled  vv^ith  gray  and  dark  brown 
pubescence;  the  outer  half  of  the  ninth  and  the  whole  of  the  tenth  and 
eleventh  joints  of  the  antennae  are  nearly  black.  Length  ((j^)  7.3-11  mm. ; 
.29-. 44  inch;  (?)  4.5-9.3  mm.;  .18-.37  inch. 

Florida,  abundant  on  Ghamwrops palmetto;  Messrs.  Hubbard  and  Schwarz. 

The  antennae  of  the  smallest  (^  are  scarcely  longer  than  the  body;  those 
of  the  largest  are  nearly  double  the  length.  This  is  Anthribus  cylindricus  { 
Dej.  Cat. 

PIEZOOORYNUS  Sch. 

Body  stout,  cylindrical.  Beak  broad,  flat,  not  as  long  as  wide,  not  emar- 
ginate  at  tip;  antennal  cavities  large  and  deep,  not  extending  to  the  eyes, 
partially  covered  by  the  sides  of  the  beak.  Eyes  subtriangular,  coarsely 
granulated.  Antennae  (J*)*  one-half  longer  than  the  body;  first  joint  stout. 
rounded;  second  nearly  twice  as  long,  conical;  8-8  more  than  twice  as  long 
as  the  second,  slightly  thickened  towards  the  tip;  5-8  feebly  carinate  on  the 
outer  face;  eighth  more  flattened  towards  the  tip  than  the  others,  9-11 
forming  a  compressed,  elongate  club,  pubescent  and  sensitive,  in  which  the 
tenth  and  eleventh  joints  together  are  shorter  than  the  ninth;  the  last 
named  is  obliquely  emarginate  at  tip,  and  twice  as  long  as  wide;  the  tenth 
is  transverse  and  similarly  emarginate.  Mentum  with  the  lobes  subacute  at 
tip,  the  emargination  rounded,  and  the  buccal  fissures  rather  wide.  Pro- 
thorax  wider  than  long,  truncate  at  base,  with  the  ridge  flexed  rectangu- 
larly at  the  hind  angles,  and  extending  along  the  sides  nearly  to  the  tip; 
sides  gradually  converging  and  slightly  rounded.  Elytra  not  wider  than 
the  prothorax,  with  punctured  striae;  third  and  fifth  interspaces  wider  and 
slightly  more  convex.  Front  coxae  nearly  contiguous;  tarsi  with  the  first 
joint  a  little  longer  than  the  second,  which  is  broad,  triangular  and  emar- 
ginate; third  joint  wider  than  the  second,  deeply  bilobed;  claws  broadly 
but  not  strongly  appendiculate. 

The  antennae  of  the  ?  are  about  one- half  as  long  as  the  body;  the  second 
joint  is  longer  and  more  slender;  the  subsequent  joints  3-8  are  about  one- 
half  longer  than  the  second,  and  the  cfub  is  broader. 
Antennae  not  very  slender  ;  prothorax  with  two  shallow  de- 
pressions and  three  elevations  occupying  the  middle 

third 1-  dispar. 

Antennae  very  slender  ;  prothorax  without  impressions  or 

elevations  ;  pubescence  mottled  yellow  brown  and  black    2.  mixtus. 

*-This  description  is  made  from  P.  dispar;  it  is  still  doubtful  if  the  sexual  dif- 
ferences exist  in  the  other  species. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.   3y 


402  ANTHRIBIDJE. 


[LeConte. 


Antennae  very  slender ;  prothorax  without  impressions  or 

elevations  ;  pubescence  nearly  black 3.  moestus. 

1.  P.  dispar  Gyll.,  Scli.  Cure,  i,  140. 

This  species,  first  described  from  Brazil,  occurs  in  Missouri  and  Texas. 
It  differs  from  the  following  in  the  proportions  of  the  antennal  joints,  but 
not  sufl3ciently  to  place  the  species  in  separate  genera  ;  the  markings 
of  the  elytra  are  similar,  but  in  the  present  species,  in  well  preserved 
specimens,  there  is  a  greater  condensation  of  ochreous  pubescence  along  the 
first  and  second  interspaces,  which  thus  cease  to  be  tessellated.  Length 
6.1-7.3  mm.;  .24-29  inch. 

2.  P.  mixtus  n.  sp. 

Middle  and  Southern  States,  rare.  Oblong-cylindrical,  opaque,  brown, 
mottled  with  testaceous;  head  and  prothorax  very  densely  punctured,  the 
latter  narrowed  in  front,  not  rounded  on  the  sides  ;  elytra  with  an  obtuse 
elevation  each  side  near  the  base,  striae  composed  of  deep  approximate 
punctures,  interspaces  tessellated;  antennae  very  slender,  joints  of  the  club 
equal  in  length.     Length  4.7-3  mm.;  .17-24  inch. 

Of  the  same  form  and  color  as  P.  dispar,  but  smaller,  with  the  sides  of 
the  prothorax  nearly  straight,  and  the  antennae  more  slender,  and  quite 
diiferent  in  the  terminal  joints.  The  second  joint  is  more  strongly  clavate, 
the  3-8  very  slender,  gradually  diminishing  in  length  as  in  P.  dispar  9  • 
but  more  slender,  the  eighth  being  very  feebly  triangular,  ninth,  tenth  and 
eleventh  forming  a  loose  club,  the  two  former  not  emarginate,  the  latter 
not  narrower ;  the  ninth  is  longer  than  the  eighth,  and  the  tenth  and 
eleventh  a  little  shorter. 

Three  specimens  are  before  me,  in  which  I  can  perceive  no  sexual  differ- 
ences ;  the  antennae  are  about  two-thirds  the  length  of  the  body.  This  is 
Tropideres  caliginosus  \  Dej.  Cat. 

3.  P.  moestus  ;  Anthribus  mmstus  Lee,  Ann.  Lye.  Nat.  Hist.  N.  York, 
i,  172  ;  pi.  xi,  f.  13. 

Georgia  and  Florida.  This  species  exactly  resembles  the  preceding,  ex- 
cept that  it  is  a  little  more  robust,  and  the  pubescence  is  finer  and  of  a 
grayish-black  color,  tessellated  with  black  on  the  elytra  ;  the  only  white 
spots  are  two  small  dots  on  the  prothorax,  one  at  the  middle  of  the  apical 
margin,  the  other  in  front  of  the  scutellum,  which  is  also  white.  The  legs 
are  annulated  with  dark  cinereous.     Length  4  mm.;  .16  inch. 

The  figure  given  by  my  father,  like  all  others  on  the  plate,  is  quite 
characteristic. 

ANTHRIBUS  Fabr.  (nee  Geoflfroy) ;  emend.  Lac. 

Lacordaire  has  restricted  this  generic  name  to  those  members  of  the 
present  tribe  in  which  the  front  coxae  are  rather  widely  separated  by  the 
prosternum.  Additional  characters  are  :  the  beak  flat  with  parallel  sides, 
wider  than  long  and  feebly  carinate  in  the  first  species  ;  eyes  rounded, 
convex,  coarsely  granulated  ;  antennal  cavities  large,  extending  to  the 
eyes.     Antennae  half  as  long  as  the  body,  second  joint  somewhat  longer 


LeConte.] 


BASITROPINI.  403 


than  the  third,  and  equal  to  the  fourth  ;  4-8  slightly  diminishing  in  length 
and  increasing  in  thickness  ;  9-11  forming  a  compi'essed  oval  cluh.  Pro- 
thorax  with  the  ridge  extending  along  the  sides  to  the  middle.  Elytra 
cylindrical,  not  wider  than  the  prothorax,  with  stria3  composed  of 
large  punctures.  Tarsi  with  the  first  joint  a  little  longer  than  the  second, 
w^hich  is  triangular  and  emarginate  ;  third  as  wide  as  the  second,  deeply 
hilobed ;  claws  acutely  toothed  at  the  middle.  Mentum  with  the  lobes 
subacute  at  tip,  gula  transversely  impressed  just  behind  the  buccal  fissures. 
Pubescence  tufted  ;  elytra  with  a  large  transverse  white  spot 

in  front  of  the  middle 1.  cornutus. 

Pubescence  short,  uniform,  dense,  yellowish-gray 2.  lividus. 

1.  A.  cornutus  Say,  Cure.  4  ;  ed.  Lee,  i.  362  ;  A.  coronatus  Gyll.,  Sch. 
Cure,  i,  141 . 

Atlantic  States,  especially  Georgia  and  Louisiana.  Easily  recognized  by 
the  tufts  of  hair  on  the  prothorax  and  elytra,  and  by  the  conspicuous  com- 
mon transverse  white  spot  in  front  of  the  middle,  which  extends  to  the 
sixth  stria.     Length  4.6-5.8  mm. ;  .18-.23  inch. 

2.  A.  lividus  n.  sp. 

Elongate-cylindrical,  brown,  densely  clothed  with  short  depressed  mud- 
colored  hairs,  club  of  antennte  dark.  Beak  entirely  flat,  not  at  allcarinate. 
Prothorax  longer  than  wide,  slightly  rounded  on  the  sides,  narrowed  from 
the  middle  to  the  apex,  which  is  broadly  rounded  ;  side  margin  extending 
to  the  middle.  Elytra  with  striae  composed  of  distant  small  punctures,  en- 
tirely even  and  equal  in  width.  Pygidial  groove  very  short,  not  extend- 
ing beyond  the  tips  of  the  elytra.     Length  4.4  mm. ;  .17  inch. 

One  specimen.  Lake  Harney,  Florida  ;  Messrs.  Hubbard  and  Schwarz. 
The  front  coxae  are  less  separated  than  in  A.  cormitus,  but  are  far  from 
being  approximate,  as  in  the  other  genera  of  the  tribe.  I  have  adopted 
the  name  under  which  it  appears  in  the  catalogue  of  Dejean. 

TOXONOTUS  Lac. 

1.  T.  fascicularis  Lac,  Gen.  Col.  vii,  576  ;  Anthribus  fasc.  Sch.,  Cure. 
i,  132. 

A  fine  (J^  of  this  well-known  Cuban  species  was  found  by  Mr.  E.  A. 
Schwarz  at  Enterprise,  Florida,  in  May.  The  reniform  eyes  and  legs 
thickly  clothed  with  erect  flying  hairs,  as  in  many  Cerambycidm,  entitle  it 
fully  to  generic  recognition  ;  and  the  prolongation  of  the  first  joint  of  the 
tarsi  into  a  long  spine  in  the  (^  is  a  singular  character,  not  occurring  in 
any  other  member  of  the  family.     Length  9.2  mm. ;  .37  inch. 

Group  II.      Cratopares. 

The  insects  of  this  group,  represented  by  only  two  species  in  our  fauna, 
diflfer  from  the  AnthriM,  chiefly  by  the  second  joint  of  the  tarsi  less  dilated, 
longer,  and  though  deeply  emarginate  at  tip,  concealing  the  third  joint  so 
that  the  articulation  is  not  visible  from  above;  but  merely  the  lobes,  which  do 


404  AJfTHKIBID^. 


[LeConte. 


not  extend  beyond  the  prolonged  angles  of  the  second  joint.  The  beak  is  flat 
and  parallel  on  the  sides  ;  the  autennal  cavities  extend  to  the  eyes,  which  are 
oval  and  coarsely  granulated,  somewhat  truncate  in  front.  The  side  mar- 
gin of  the  prothorax  extends  to  about  the  middle  ;  the  base  is  slightly  bisin- 
uate,  and  the  lower  basal  margin  is  very  well  defined,  so  that  when  the 
prothorax  is  deflexed,  it  might  be  supposed  that  the  transverse  ridge  was 
not  absolutely  basal.  The  same  is  the  case,  though  to  a  less  extent,  in  the 
genera  of  the  preceding  group.  The  front  coxae  are  contiguous,  and  the 
meutum  is  but  feebly  emarginate  in  our  species  ;  the  buccal  fissures  are 
rather  wide. 

CRATOPARIS  Sch. 

Our  two  species  differ  by  the  color  of  the  pubescence  : 
Brown,  Avith  the  sides  of  the  prothorax,   and  large  elytral 
spot  concave  backwards,  yellowish-gray,  rest  of  the  sur- 
face mottled 1 .  lunatus. 

Black,  varied  with  white  ;  elytral  spot  irregular,  extend- 
ing to  the  base,  enclosing  a  quadrate  black  scutellar 
space,  apex  of  elytra  white 2.  lugubris. 

1.  C.  lunatus  Fahraeus,  Sch.,  Cure.  v.  221  ;  Labram  and  ImhofF,  Gen. 
Cure,  i,  56;  Anthribus  lun.  Fabr.,  Syst.  El.  ii,  409;  Macrocephalus  albifrons 
Oliv.,  iv,  80,  12,  pi.  2,  f  16  ;  Anthribus  albifrons  Boh..  Bull.  Mosc.  vi.  18  ; 
Euparius  lunatus  Gyll.,  Sch.  Cure,  i,  140.  Euparius  paganus  Gyll., 
Sch.  Cure,  i,  142  ;    Cratoparis  pag.,  ibid,  v,  225,  small  specimens. 

Atlantic  Slates,  abundant.  The  larva  is  described  by  Chapuis  and  Can- 
deze.  Cat.  Larv.  Col.  p.  200. 

2.  C.  lugubris  Fahraeus,  Sch.,  Cure  v,  224  ;  Macrocephalus  lug.  Oliver, 
iv,  80,  13,  pi.  2,  f  17  ;  Euparius  hig.  Gyll.,  Sch.,  Cure,  i,  141  ;  Anthribus 
notatus  Say,  Journ.  Ac.  Nat.  Sc.  Phil,  v,  248  ;  ed.  Lee,  ii,  812. 

Atlantic  State?,  abundant  southwardly. 

Group  III.     Bracby tarsi. 

In  this  group  the  beak  is  gradually  narrowed  from  the  eyes  forwards,  so 
as  to  become  trapezoidal  in  form  ;  the  antennal  cavities  extend  to  the  eyes, 
which  are  coarsely  granulated  and  emarginate  in  front.  The  first  and 
second  joints  of  the  antennae  are  stout,  the  second  a  little  longer,  3-8 
shorter,  gradually  a  little  wider  ;  9-11  much  wider,  forming  an  oval  com- 
pressed sensitive  club.  Prothorax  rounded  in  front,  overhanging  the  head, 
basal  ridges  flexed  rectangularly  at  the  angles,  but  extending  only  a  very 
short  distance  along  the  sides;  inferior  basal  margin  acute.  Elytra  with  even 
and  equal  interspaces.  Tarsi  with  the  first  joint  scarcely  longer  than  the 
second,  which  is  triangular  and  emarginate  ;  third  deeply  bilobed,  not  nar- 
rower than  the  second,  claws  toothed  near  the  tip,  so  as  to  appear  cleft. 
Mentum  deeply  emarginate  with  lobes,  rounded  at  tip  ;  gula  transversely 
impressed. 

Our  species  represent  two  genera,  one  of  which  has  not  been  previously 
recognized. 


LeConte.] 


BASITROPINI.  405 


Basal  ridge  flexed  abruptly  forwards  at  the  hind 

angles,  and  continued  along  the  sides  of  the 

prothorax  for  a  short  distance BRAOHYTARSUS. 

Basal  ridge  gently  rounded  and  becoming  obsolete 

at  the  hind  angles ANTHRIBULUS. 

BRAOHYTARSUS  Sch. 
This  genus  contains  the  type  of  Geofl:roy's  genus  Anthribus  ;  but  in  con- 
sequence of  his  only  semi-recognition  of  the  binominal  Linnoean  nomen- 
clature, of  a  definition  properly  accompanied  by  a  specific  name,  indica- 
ting the  object  described,  was  delayed  until  1799.  The  generic  name  thus 
proposed  by  him  (1764),  was  appropriated  by  Olivier  (1789j,  and  by  La- 
treille  and  Fabricius  subsequently,  and  applied  to  an  assemblage  of  species 
now  divided  into  several  genera.  Schoaherr  afterwards  divided  this  as- 
semblage of  species,  and  gave  the  name  Brachyiarsus  to  the  genus  here 
treated  of.  I  cannot,  therefore,  advise  the  restoration  of  the  name  Anthri- 
bus, with  the  authority  Geofl:roy,  to  this  genus,  even  though  it  be  sanc- 
tioned by  the  authority  of  the  Munich  Catalogue,  and  the  Check  List  of 
Mr.  Crotch. 

Legs  testaceous  not  annulated 2. 

Legs  brown,  annulated  with  darker;  elytra  tessellated  on 

the  alternate  interspaces 1.  alternatus. 

2.  More  elongate,  densely  and  coarsely  pubescent  with 

yellowish-gray  hair,  with  indistinct  stripes  of  gray..  2.  grisaus. 

Pubescence  coarse  and  dense,  yellowish-gray,  slightl}' 

mottled  with  paler  dots  on  the  elytra 3,  limbatus. 

Pubescence  finer,  scai'cely  mottled,  body  more  elongate 

than  in  B.  limbatus 4.  plumbeus. 

Pubescence  coarse  and  dense,  brownish-yellow,  not  mot- 
tled ;  smaller  and  more  elongate  than  B.  limbatus. .  5.  vestitus. 
Shorter  and  stouter,  pubescence  finer,  gray,  not  mottled; 

thighs  usually  dusky 6.  tomentosus. 

Longer,  pubescence  grayish-yellow,  mottled  with  dark 
brown,  elytra  each  with  a  basal  spot,  and  another  be- 
hind the  middle 7.  variegatus. 

1.  B.  alternatus.  Anthribus  alt.  Say,  Journ.  Ac.  Nat.  Sc.  Phila.  v, 
250  ;  ed  Lee,  ii,  314. 

New  York,  Missouri  and  Texas  ;  of  the  same  form,  size  and  color  as 
ArcBocerus  coffece,  but  quite  different  by  the  form  and  position  of  the  an- 
tennae. 

2.  B.  griseus,  n.  sp. 

Elongate,  subcylindrical,  piceous,  densely  clothed  with  rather  coarse 
gray  hair,  verging  towards  ochreous  in  places,  but  without  definite  pattern. 
Head  as  in  B.  limbatus.  Prothorax  longer  than  its  width  at  base,  rounded, 
but  scarcely  narrowed  on  the  sides  as  far  as  the  middle,  then  more  oblique- 
ly rounded  and   narrowed  to  the  tip,  which  is  rounded  as  usual ;  base 


406  ANTHRIBID^. 


[LeConte. 


broadly  rounded,  sinuate  near  the  hind  angles,  which  are  acute  ;  disc 
strongly  punctured,  but  the  punctures  are  concealed  by  the  dense  pubes- 
cence. Elytra  not  wider  than  the  base  of  the  prothorax,  and  about  twice 
as  long  as  it ;  striae  narrow,  rather  finely  punctured.  Legs  and  antennae 
yellowish-brown,  club  darker.     Length  3.5  mm. ;  .14  inch. 

Colorado,  six  specimens  ;  Prof.  F.  H.  Snow.  The  body  is  elongate  as  in 
B-  variegatus  ;  the  pubescence  is  nearly  uniform,  but  tliere  are,  sometimes, 
three  paler  gray  vittse  on  the  prothorax,  and  a  broad  one  occupying  the  5th 
and  6th  interspaces  of  the  elytra.  The  side  margin  produced  by  the  flex- 
ure of  the  basal  ridge  extends  nearly  one-half  of  the  length  of  the  pro- 
thorax. 

3.  B.  limbatus  Say,  ibid,  v,  250  {Anthribus)  ;  ed.  Lee,  ii,  314. 
Atlantic  States,  varies  in  size  from  2.2-3.1  mm. ;  .09-.  12  inch. 

4.  B.  plumbeus,  n.  sp. 

Oblong,  cylindrical,  black,  densely  clothed  with  cinerous  pubescence,  not 
mottled;  stri*  of  elytra  fine,  punctured;  antennie  and  legs  testaceous,  club 
and  thighs  darker.     Length  3.2  mm.,  .13  inch. 

Middle  States.  Of  the  same  form  as  B.  limbatus,  but  a  little  narrower; 
the  pubescence  is  finer,  of  a  uniform  gray  color.  The  posterior  ridge  ex- 
tends only  one-third  the  length  of  the  prothorax  at  the  sides,  while  in  B. 
limbatus  it  goes  fully  as  far  as  the  middle. 

5.  B.  vestitus,  n.  sp. 

Oblong-cylindrical,  black,  densely  clothed  with  coarser  brownish-yellow 
pubescence,  scarcely  mottled  striiB  of  elytra  punctured,  interspaces  fiat;  an- 
tennae and  legs  testaceous.     Length  2  mm. ;  .08  inch. 

Louisiana;  Mr.  Ulke.  Smaller  and  narrower  than  B.  limbatus,  densely 
covered  in  the  same  manner  with  coarse,  brownish -yellow  pubescence;  the 
hind  angles  of  the  prothorax  are  acute;  but  the  transverse  ridge  scarcely  ex- 
tends along  the  sides  in  front  of  the  base. 

6.  B.  tomentosus  Say,  Journ.  Ac.  Nat.  Sc.  Phila.  v.  251  (Anfhnbus) ;  ed. 
Lee,  ii,  315.     Brachytarsus  brevis  Fahraeus,  Sch.  Cure,  v,  168. 

Middle  and  Western  States;  on  Ambrosia  (C.  V.  Riley).  The  ridge  ex- 
tends from  the  hind  angles  about  one-third  the  length  cf  the  prothorax. 

7.  B.  variegatus  Say,  Journ.  Ac.  Nat.  Sc.  Phila.  v,  251  {AjithribwC); 
ed.  Lcc,  ii,  315;  Brachytarstis  sticticus  Gyll.,  Sch.  Cure,  i,  172. 

Atlantic  States;  Say  notes  its  occurrence  in  the  smut  of  wheat.  A  species 
of  rather  elongate  form,  and  easily  known  by  the  basal  and  postmedial 
fuscous  spots  near  the  suture;  varieties  however  occur  in  which  these  spots 
are  obsolete,  and  the  specimens  are  then  to  be  distinguished  from  A.limba- 
ttis  by  the  narrower  form,  and  more  elongate  prothorax.  Such  specimens 
probably  represent  B.  obsoletus  Fahraeus,  Sch.  Cure,  v,  167.  The  ridge  ex- 
tends from  the  base  along  the  sides  for  about  one  half  the  length. 
ANTHRIBULUS  n.  g. 

The  small  species  upon  which  I  have  founded  this  genus  is  of  more 
elongate  form  than  Brachytarsus,  but  agrees  with  it  in  the  trapezoidal 


LeConte.] 


AR^OCERINI.  407 


form  of  beak,  and  the  first  joint  of  the  tarsi  not  hunger  than  the  second.  It 
differs,  however,  by  the  basal  ridge  of  the  prothorax  being  not  rectangu- 
larly but  only  obtusely  flexed  at  the  outer  ends,  and  not  continuing  along 
the  sides.    The  claws  are  cleft  at  the  tips  for  about  one-fourtli  their  length. 

1.  A.  rotundatus,  n.  sp. 

Elongate,  dark  brown,  densely  clothed  with  pale,  cinereous  and  brown 
pubescence;  prothorax  broadly  rounded  on  the  sides,  hind  angles  rounded; 
elytra  oval,  convex,  striae  deep,  punctured.  Length  1.4-2.4  mm. ;  .05-.09 
inch. 

Massachusetts  to  Louisiana.  This  species  differs  in  form  from  the  BracTiy- 
tarsi  by  having  the  sides  of  the  prothorax  broadly  rounded,  and  the  elytra 
slightly  narrowed  and  rounded  near  the  base.  The  body  is  rather  elongate, 
proportioned  nearly  as  in  jB.  variegatus,  dark  brown,  densely  clothed  with 
brown  and  silvery  gray  pubescence;  the  head  is  flat,  and  the  rostrum 
slightly  narrowed  at  the  insertion  of  the  antennae;  the  latter  are  testaceous, 
with  tlie  club  fuscous;  prothorax  longer  than  wide,  gradually  narrowed  in 
front  and  rounded  on  the  sides,  tip  rounded;  base  broadly  rounded, 
transverse  ridge  not  continued  along  the  sides;  hind  angles  obtuse,  slightly 
rounded.  Elytra  oval,  convex,  a  little  wider  than  the  base  of  the  prothorax; 
humeral  angles  rounded,  not  prominent;  striae  rather  deep,  punctured;  legs 
testaceous.  The  antennae  are  rather  stouter  than  in  Brachytarsus,  and 
scarcely  attain  the  base  of  the  prothorax. 

Tribe  IIL     ARiEOCERINI. 

But  two  genera  of  this  tribe  have  occurred  in  our  fauna  ;  they  are  of 
small  size,  and  are  easily  known  by  the  antennae  being  inserted  in  small 
foveas  upon  the  upper  surface  of  the  beak.  The  transverse  carina  of  the 
prothorax  as  in  the  preceding  tribe  is  basal,  suddenly  flexed,  forming  a 
right  angle,  and  extended  a  short  distance  along  the  sides;  the  antennae 
are  slender,  and  the  last  three  joints  form  a  loose  club.  The  elytra  are 
regularly  striate  as  in  all  the  preceding  tribes  and  groups  of  the  fomily. 

Antennae  with  second  joint  shorter  than  the  first Arwocerus. 

"      ^        "  "         as  long  as  the  first,  elytra  striate,     ctaoragrus. 

AR^OOERUS  Sch. 

1.  A.  fasciculatus  Wollaston,  Ann.  Nat.  Hist,  v,  (1870),  18  ;  CurcuUo 
fase.  DeGeer,  Mem.  Ins.  v,  (1775),  276,  pi.  xvi.  f.  2  ;  Bruchus  cacao  Fabr., 
Syst.  Ent.  64  ;  Ent.  Syst.  1,  2d,  370  ;^Syst.  El.  ii,  397;  Macrocephalus  cacao 
Oliv.,  Ent.  iv.  No.  80,  15,  pi.  2,  f.  21;  Anthribus  coffea;.  Fabr.,  Syst.  El.  ii, 
411  ;  Amocerus  coffece  Gyll.,  Sch.  Cure,  i,  175  ;  Labr.  and  Imhoff,  Cure,  i, 
55  ;  Anthribus  capillicornis  Say,  Journ.  Ac.  Nat.  Sc.  Phila.  v,  249  ;  ed. 
Lee,  ii,  313. 

Atlantic  and  Pacific  States  in  articles  of  commerce.  This  cosmopolitan 
species  has  many  other  synonyms,  which  may  be  found  in  Harold  and 
Gemminger,  Cat.  Col.  p.  2749.  From  these  must  be  excluded  Anthribus 
mmtus  Lee,  Ann.  Lye.  New  York,  1,  172,  which,  as  mentioned  above,  be- 
longs to  Piazocorynus. 


408  AKTHRIBID^. 


[LeConte. 


OHORAGUS  Kirby. 

1.  O.  Ziramermanni,  n   sp. 

Oval-subcylindrical,  brown,  without  lustre,  slightly  pubescent,  pro- 
thorax  densely  punctured,  elytra  deeply  striato-punctate,  interspaces 
densely  and  finely  punctulate,  antennae  and  legs  yellow.  Length  1.3  mm. ; 
.06  inch. 

North  Carolina  ;  Dr.  C.  Zimmermann.  According  to  description  this 
species  difters  from  the  European  C.  Sheppardi  hy  tlie  prothorax  not  being 
very  finely  punctured,  and  from  G.  piceus  by  the  elytra  not  being  shining. 

2.  O.  Sayi,  n.  sp. 

Elongate-oval,  subcylindrical,  blackish,  prothorax  densely  punctured, 
slightly  pubescent,  elytra  deeply  striato-punctate,  shining,  interspaces  less 
densely  and  more  distinctly  punctulate;  antennae  dark  testaceous,  feet 
piceous.     Length  3.3  mm. ;  .09  inch. 

Washington,  D.  C. ;  Mr.  Ulke.  Larger  and  narrower  than  the  preced- 
ing, with  dai'ker  legs,  and  shining  elytra. 

Tribe  IV.     XEKORCHESTINI. 

The  species  of  this  tribe  have  lost  all  appearance  of  the  family,  and  in- 
deed of  Rhynchopliora.  Tlie  only  one  known  to  me  in  our  fauna  might 
be  readily  mistaken  for  a  small  CrypfocepTialns;  while  the  Maderan  species 
figured  by  Wollaston*  seems  to  resemble  in  miniature  Gihhium- 

The  body  is  oval  or  ovate,  very  convex,  and  quite  glabrous.  The  beak 
is  so  short  as  to  be  not  distinct  from  the  front;  the  antenn*  are  inserted 
ujion  the  front,  which  is  deflexed  ;  the  eyes  are  small,  transverse  oval. 
The  first  and  second  joints  of  the  ajiteunse  are  longer  and  stouter  ;  3-7 
shorter  and  thinner,  nearly  equal ;  eighth  subtri angular,  a  little  wider, 
9-11  wider  forming  a  loose  club.  Prothorax  narrowed  from  the  base  for- 
wards, ridge  entirely  basal,  flexed  at  the  hind  angles,  and  continuing  a 
short  distance  along  the  sides.  Scutellum  invisible.  Elytra  not  striate. 
Tarsi  with  the  first  joint  elongated  ;  second  triangular,  emarginate;  third 
bilobed  ;  claw^s.  slender,  not  toothed. 

Two  genera  would  seem  to  be  indicated  ;  the  first  of  which  is  unknown 
to  me  in  nature. 

Upper  surface  smooth XENORCHESTES. 

Prothorax  punctured  ;  elytra  with  irregular  double 

rows  of  punctures EUXENUS. 

XENORCHESTES  Woll. 

1.  X.  americanus  Motsch.,  Bull.  Mosc.  1873,  ii,  251. 
Unknown  to  me  ;  found  on  bushes  near  Mobile,  Alabama.     The  follow- 
ing is  the  description  given  by  Motschulsky : 

Statura  et  color  X  saUUantis  sed  duplo  minor  ;  gibbosus,  acariformis, 

*  Insecta  Maderensia,  pi.  viii,  f.  8.  The  maxilla  has  a  strikingly  Adephagous 
form,  the  inner  lobe  being  curved,  acute,  and  sparsely  spinose  on  the  inner 
edge. 


LeConte.J 


APION^ID^.  409 


antice  attenuatus,  nitidus  glaber,  niger;  elytris  subsenescentibus,  antennis 
pedibusque  ferrugineo-testaceis  ;  capite  obtuso,  oculis  planiusculis  ;  Ihorace 
antice  capitis  latitudine,  subcouico,  postice  latioie,  basi  simpliciter  trun- 
cato  ;  elytris  antice  thoracis  latitudine,  postice  ovato-dilatalis.  Long.  §  lin. ; 
lat.  elytr.  ^  lin. 

EUXENUS  u.  g. 

I  can  give  no  other  characters  for  distinguishing  this  genus,  except  the 
punctured  surface  and  less  ovate  form  of  body. 

1 .  E.  punctatus  n.  sp. 

Oval,  very  convex,  slightly  narrower  in  front ;  brownish-black,  glabrous 
shining ;  sides  of  elytra  piceous,  base  of  antennae  and  legs  testaceous. 
Head  feebly  punctulate.  Prothorax  a  little  wider  at  base  than  long,  gradu- 
ally narrowed  from  the  base  forwards  ;  tip  broadly  rounded,  base  nearly 
rectilinear  ;  disc  deeply  but  not  coarsely  punctured.  Elytra  scarcely  wider 
than  the  base  of  the  prothorax,  and  punctured  similarly,  except  that  the 
punctures  are  arranged  in  irregular  double  rows,  with  narrow  intervening 
smooth  spaces.  Beneath  brownish,  punctured  ;  ventral  segments  short, 
equal.     Length  1.2  mm. ;  .05  inch. 

Detroit,  Michigan  ;  one  specimen  ;  Messrs.  Hubbard  and  Schwarz.  Dr. 
Horn  has  received  another  from  Canada.  The  head  is  so  much  deflexed 
that  I  cannot  examine  the  form  of  the  mentum  without  risk  of  breaking 
the  insect. 

Family  XL     APIONID^. 

Mentum  narrow,  linear,  much  longer  than  wide,  inserted  upon  a  short 
gular  peduncle  of  equal  width  ;  slightly  channeled  at  tip,  reaching  nearly 
to  the  mandibles,  and  quite  concealing  the  ligula  and  palpi,  which  are  very 
small,  maxillas  entirely  filling  the  buccal  fissures  with  a  large  corneous 
mass  ;  palpi  not  visible  ;  on  dissection  they  appear  very  short,  with  not 
more  than  three  joints  ;  there  is  but  one  broad  lobe,  densely  fringed  with 
hairs.  Mandibles  three-toothed,  the  middle  tooth  curved,  acute,  forming 
the  apex  ;  near  the  tip  on  the  anterior  edge  is  a  small  tooth  ;  the  thiid  tooth 
is  on  the  inner  side  and  very  large. 

AntennsE  inserted  at  the  sides  of  the  beak,  in  foveas,  eleven-jointed, 
straight,  first  joint  longer  than  second  ;  these  two  are  stouter  tiian  the  suc- 
ceeding ones  ;  9-11  broader  and  longer,  forming  an  oval  pubescent  club, 
which  is  pointed  at  the  end. 

Head  prominent,  not  deflexed,  not  narrowed  behind  the  eyes,  which  are 
rounded,  convex,  and  not  finely  granulated  ;  beak  long  and  slender,  some- 
times stouter  towards  the  base  ;  without  antennal  grooves. 

Prothorax  truncate,  in  front,  without  postocular  lobes,  subsinuate  behind, 
gradually  narrowed  from  base  to  tip  ;  prosternum  very  short,  coxal  cavities 
rounded,  confluent,  closed  behind  ;  prosternal  sutures  distinct. 

Mesosternum  small,  narrow  between  the  coxae  ;  side  pieces  diagonally  di- 
vided ;  epimera  triangular,  pointed  at  the  inner  side,  and  not  attaining  the 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  3z 


410  APIONID^. 


[LeConte. 


coxal  cavities.     Metasternum  a  little  longer  than  the  first  ventral  segment, 
side  pieces  narrower. 

Elytra  ample,  sometimes  almost  ventricose,  deeply  striate,  entirely  cov- 
ering the  pygidium  ;  without  epipleurse  ;  fold  on  the  inner  surface  parallel 
with  the  side  margin,  diverging  gradually  from  it  towards  the  tip.  Wings 
large. 

Abdomen  with  the  first  and  second  ventral  segments  large,  closely  con- 
nate, with  a  fine  straight  suture  ;  third  and  fourth  segments  very  short,  su- 
tures straight;  fifth  longer,  flat,  rounded  at  tip  ;  dorsal  segments  membran- 
ous, pygidium  small;  anterior  coxse  conical,  prominent,  contiguous  ;  middle 
coxpe  round,  slightly  separated;  hind  coxae  small,  transverse,  rather  widely 
separated. 

Legs  rather  long  and  stout;  thighs  somewhat  clavate,  tibise  truncate  at  tip, 
without  spurs,  or  spines  ;  tarsi  dilated,  first  point  scarcely  longer,  third  bi- 
lobed  ;  claws  divergent,  appendiculate,  toothed,  or  simple. 

The  species  of  this  family  are  small,  and  have  a  peculiar  and  easily  re- 
cognized appearance.  Lacordaire  has  placed  them,  as  a  tribe  near  his  Atte- 
labides,  witli  which,  however,  as  will  be  seen  by  the  foregoing  description, 
they  have  but  little  resemblance,  or  affinity. 

Lacordaire  describes  them  as  apterous  ;  in  all  the  species  I  have  examined 
the  wings  are  quite  well  developed.  I  also  find  that  in  many  of  our  species 
the  claws  are  toothed  or  appendiculate,  while  in  a  few  they  are  simple,  and 
I  have  therefore  attempted  to  group  them  in  m}"  collection  upon  those  char- 
acters, the  position  of  the  antenna;,  and  the  relative  length  of  the  first  and 
second  joints  of  those  organs. 

The  species  are  numerous,  and  many  are  yet  undescribed.  It  seems 
hardly  worth  while  to  affix  names  to  them,  until  they  have  been  collected, 
with  reference  to  the  plants  which  they  infest.  I  will,  therefore,  on  the 
present  occasion  give  only  the  bibliography  of  the  described  species,  in  al- 
phabetical order,  with  such  notes  on  their  habits,  as  I  have  been  able  to 

obtain. 

APION    Herbst. 

1.  A.  cavifrons  Lee,  Pac.  R.  R.  Expl.  and  Surveys,  Ins.  53.  Oregon. 

2.  A.  cinereum  Gerstaecker,  Stettin  Ent.  Zeitung,  1804,  250.  South 
Carolina. 

3.  A.  crassinasum  Lee,,  Pac.  R.  R.  Expl.  and  Surveys,  Ins.  53,  Cali- 
fornia. 

4.  A.  cribricolle  Lee,  Pac.  R.  R.  Expl.  and  Surveys,  Ins.  53;  A.  po- 
rosicoUe,  Gemm.,  Col.  Hefte,  viii,  122.  California.  The  change  of  name 
was  suggested  in  the  Munich  Catalogue,  but  was  afterwards  withdrawn  by 
Dr.  Gemminger  as  unnecessary. 

5.  A.  cuprescens  Mann.,  Bull.  Mosc,  1843,  ii,  289.     Alaska. 

6.  A.  lanuginosum II Walsh,  Proc.  Ent.  See.  Phila.,  18G7,  269.  Il- 
linois, from  galls  Salix  strobiloides  produced  by  a  species  of  Cecidomyia. 

7.  A.  melanarium  Gerst.,  Stett.  Ent.  Zeit.,  1854,  261. 

8.  A.  metallicum.  Gerst.,  ibid.  243.     Florida. 


LeConte.] 


APIONID^.  411 


9.  A.  nigrum  Herbst,  Kafer,  vii,  123,  pi.  103,  f.  11  :  Germar,  Magazin, 
ii,  239  ;  Gyll.,  Sch.  Cure,  i,  254. 

10.  A.  nodirostre  Gerst.,  Stett.  Ent.  Zcit.,  1854,  241.     Florida. 

11.  A.  cedorhynchum  Lee,  Pr.  Ac.  Nat.  Sc,  Phila.,  1858,  78.  San 
Diego,  California. 

12.  A.  pensylvanicum  Boh.,  Sch.  Cure,  v,  417.     Pennsylvania. 

13.  A.  porcatum  Boh.,  ibid,  v,  374. 

14.  A.  proclive  Lee.,  Pae.  R.  R.  Expl.  and  Surveys,  Ins.  53.  Cali- 
fornia. 

15.  A.  protensuna  Lee.,  ibid.  53.     California. 

16.  A.  reGonditum.  Gyll.,  Sch.  Cure,  v,  433.     Pennsylvania. 

17.  A.  rostrum  Say,  Jonrn.  Acad.  Nat.  Se.  Phila.,  v,  253  ;  ed.  Lee., 
ii,  316  ;  Cure.  p. 6;  ed.  Lee.,  i,  264  ;  A.  Sxyi,  Gyll.,  Sch.  Cure,  i,  252;  Har- 
ris, Inj.  Insects,  ed.  ult.     (larva.)     Seeds  of  Baptisia  leucantha. 

18.  A.  segTiipes  Say,  Cure.  p.  6  ;  ed.  Lee,  i,  264.  Seeds  of  Tephrosia 
virginka.     Also  in  seeds  of  Astragalus  according  to  Say. 

19.  A.  subglobosum  Gerst.,  Stett.  Ent.  Zeit.,  1854,  343. 

20.  A.  trog-lodytes  Mann.,  Bull.  Mose.,  1843,  ii,  289.     California. 

21.  A.  ventricosum  Lee.,  Proc.  Acad.  Nat.  Sc.  1858,  78.  Fort  Yuma, 
California. 

22.  A.  vile  Gerst.,  Stett.  Ent.  Zeit.,  1854.  249. 

Species  are  known  to  nie  to  infest  the  seeds  of  Btptisla  tinctoria.  Phase- 
olus  pauctflorus;  and  in  the  Adirondack  region  of  New  York,  I  found  a 
species  in  abundance  on  the  leaves  of  the  locust,  Robinia  pseudacacia. 
Say,  on  the  authority  of  Dr.  J,  F.  Melsheimer,  mentions  that  A.  rostrum 
is  found  on  the  same  plant :  Cure.  p.  6,  but  the  species  collected  by  me  is 
quite  different. 


412  APPENDIX.  [LeCont., 


APPENDIX  I. 

ADDITIONS    AND   CORRECTIONS. 

p.  2.  add  ;  Pubescence  long  and  sparse,  head  very  con- 
vex, eyes  protuberant 4.  bombifrons. 

4.  Rhinomacer  bombifrons,  n.  sp. 

Of  the  same  form  as  R.  pilotms,  but  larger,  black,  with  a  slight  metallic 
tinge,  thinly  pubescent  with  long  but  not  coarse  gray  hair.  Beak  wider  at 
base  and  tip,  narrowest  about  the  middle,  slightly  curved,  smooth  above, 
punctured  at  the  sides,  separated  from  the  head  by  a  very  deep  constriction. 
Head  nearly  twice  as  wide  as  long,  very  convex,  coarsely  and  densely 
punctured  ;  eyes  veiy  convex  and  prominent.  Prothorax  a  little  wider 
than  long,  rounded  on  the  sides,  strongly  punctured,  with  a  slight  vestige 
of  a  smooth  dorsal  line.  Elytra  strongly,  but  not  densely  punctured,  more 
finely  punctured  towards  the  tip.  Aniennaj  piceous,  3-7  joints  paler. 
Length  4  mm. ;  .16  inch. 

British  Columbia,  one  specimen.  The  head  is  also  convex  in  B.  pilosus 
and  compti/s  ;  but  to  a  much  less  extent ;  the  otlier  characters  are  quite  dif- 
ferent and  the  elytra  are  much  less  densely  punctured. 

p.  4.  Change  the  table  of  Auletes,  at  follows  : 

Antennte  inserted  near  the  middle  of  the  beak.  2. 

"  "  "       "     base  i<  <<  g. 

2.  Last  joint  of  antennae  triangular  pointed,  as  wide 

as  the    preceding ;    black    coarsely    punctured, 

thinly  pubescent L  ater. 

Last  joint  of  antennae  narrower  than  the  preceding, 

obtuse  ;  black  finely'  punctured,  thinly  pubescent.  nasalis. 

3.  Bluish  black,  densely  punctured,  thinly  pubescent,  2.  subcoeruleus. 
Very  small,  brown,  irregularly  pubescent 3.  cassandrse. 

1-2.  Auletes  nasalis.  n.  sp. 

Shining  black,  sparsely  clothed  with  fine  suberect  hairs,  beak  nearly  as 
long  as  the  head  and  prothorax,  rather  broad,  narrowest  at  the  base  of  the 
antennae,  which  are  inserted  in  large  lateral  cavities,  about  ^  from  the  base; 
gradually  wider  towards  the  tip,  scarcely  punctured,  with  a  longitudinal 
row  of  punctures  each  side  from  the  tip  nearly  to  the  antennae.  Head 
transverse,  punctured,  with  a  smooth  frontal  space  ;  eyes  prominent.  Pro- 
thorax wider  than  long,  narrowed  in  front,  rounded  on  the  sides,  not  dense 
ly,  but  strongly  punctured.  Elytra  rather  densely  and  finely  punctured. 
Antennse  black,  9th  and  10th  joints  large,  not  transverse,  11th  much  smalle? 
and  narrower,  triangular  with  rounded  angles.     Length  3  mm.;  .13  inch. 

California,  west  of  San  Diego  ;  collected  by  Mr.  Hardy  and  kindly  giver, 
me  by  Dr.  Sharp.     The  9th  and  10th  joints  of  the  antennae  are  transverse 


LeUonte.] 


APPENDIX.  413 


and  the  11th  longer  and  acute  at  tip  in  A.  atcr:  and  nearly  the  same  in  A. 
siibccenileKs:  in  A.  rassiindrce  the  last  joint  is  more  obtuse,  and  the  club  is 
rather  less  loosely  formed. 

p.  7.   Change  the  table  of  BhynvkitOi  as  follows  : 

5.     Color  black  bronzed 2.  seneus, 

' '    blue 3.  mexicanus. 

"    golden,  tinged  with  green eximius. 

3-4.  Rhyncliites  eximius,  n.  sp. 

Bright  golden,  tinged  with  green  and  red,  clothed  with  erect  black  hairs, 
which  are  shorter  than  in  the  two  species  above  named,  beak  as  long  as  the 
head  and  prothorax,  slightly  broader  at  tip,  rather  stout,  slightly  curved, 
rugose,  bisulcate  and  feebly  cariuate  behind  the  antennae  ;  lateral  edges 
sharply  defined  ;  an  elongate  fovea  between  the  antennae.  Head  finely 
transversely  rugose  behind,  sparsely  and  strongly  punctured  in  front,  not 
channeled.  Prothorax  about  as  wide  as  long,  somewhat  narrowed  in  front, 
rounded  on  the  sides,  sparsely  and  strongly  punctured ;  tip  constricted  at 
the  sides,  base  distinctly  margined.  Elytra  nearly  one-half  wider  than  the 
prothorax,  striae  composed  of  deep  punctures,  which  are  not  much  larger 
than  those  of  the  interspaces.  Under  surface,  legs  and  beak,  dark  metallic 
green.  Antenna?,  black,  inserted  about  the  middle  of  the  length  of  the 
beak  and  extending  beyond  the  base  of  the  elytra.  Length  3.7  mm.;  .15 
inch. 

New  Mexico,  Dr.  Horn.     A  very  distinct  species. 

p.  96.  Phaeepholis  elegans.  I  have  tlu"ee  specimens  from  New  Mexico, 
agreeing  in  all  respects  with  the  others,  except  that  the  scales  are  dirty 
gray,  not  at  all  metallic. 

p.  80.  Dirotognathus  sordidus.  Specimens  collected  by  Mr.  Crotch, 
at  Lake  Labache,  British  Columbia,  are  of  smaller  size  (3-3  mm. ;  .125 
inch),  and  the  prothorax  is  somewhat  broader  than  in  the  Mohave  and 
Arizona  specimens,  but  do  not  difier  otherwise. 

p.  114.  in  table  of  Sitoius,  add  in  3  : 
Elytra    nearly  uniform  gray-brown,    form  less   eloagate. 

bristles  longer  ;  prothorax  with  three  paler  stripes hispidulus. 

4-5.  Sitones  hispidulus  Germ.,  Sch.  Cure.  ii.  123  ;  Allard,  Ann. 
Ent.  Fr.,  1804,  376  ;  S.  ImmorrJioidalis,  Sch.,  Cure.  ii.  115. 

This  common  European  species  occurred  abundantly  at  the  sea-shore 
near  Long  Branch,  New  Jersey,  in  July,  about  the  roots  of  grass  growing 
on  the  dunes.     It  is  easily  known  by  the  long  bristles  of  the  elytra,  which 
in  our  specimens  are  only  slightly  variegated  in  color, 
p.  119,  to  table  of  TrichalophuH  add  : 

Beak,  channeled 5.  simplex. 

Beak  flat,  not  at  all  channeled 6.  planirostris. 

6.  Trichalophus  planirostris,  n.  sp. 

Brownish-black,  clothed  with  pale  brown  prostrate  hairs.  Beak  notchan- 


414  APPEISTDIX. 


[LeOonte. 


neled,  but  flat,  or  even  feebly  concave  longitudinally  ;  lateral  grooves  in 
front  of  the  eyes  triangular,  feeble,  short.  Prothorax  rounded  on  the  sides, 
not  constricted  at  tip,  convex  finely  and  densely  punctured,  with  a  very 
faint  narrow  dorsal  line,  with  a  paler  lateral  stripe,  as  in  T.  simplex.  Elytra 
densely  and  finely  punctured,  without  striae,  but  tesselated  in  the  usual 
manner  with  darker  spots.     Length  8.6  mm.;  .33  inch. 

Colorado  ;  one  specimen  kindly  sent  to  me  by  Prof.  F  H.  Sdoav,  by  whom 
it  was  collected  while  in  charge  of  the  Kansas  University  Scientific  Expe- 
dition of  1876.  This  species  exactly  resembles  T.  simplex,  except  in  the 
absence  of  the  well  marked  medial  groove  on  the  upper  surface  of  the 
beak. 

p.  124,  to  end  of  table  of  Plintonomus  add  in  5: 
Scales  golden-yellow,    elytra  with  conspicuous  black  spots, 

sides  of  prothorax  rounded eximius. 

4-5.  Phytononius  eximius,  n.  sp. 

Of  the  same  size  and  form  as  P.  comptus,  black,  prothorax  and  elytra 
densely  clothed  with  golden-yellow  scales,  elytra  with  many  small  quad- 
rate spots  of  black  scales.  Head  and  beak  densely  punctured,  scales  dense 
upon  the  occiput,  gradually  thinner  in  front,  so  that  the  beak  becomes  free 
from  scales,  but  sparsely  pilose  with  long  bristles  ;  frontal  groove  very 
short  between  the  eyes,  which  are  not  prominent. 

Prothorax  as  long  as  wide,  truncate  at  tip,  broadly  rounded  at  base, 
sides  parallel  for  half  the  length,  then  obliquely  narrowed  to  the  tip,  which 
is  impressed  on  the  sides,  but  not  on  the  upper  surface  ;  there  are  two  ill- 
defined  approximate  basal  black  spots.  Scutellum  yellow,  scaly.  Elytra 
fully  one-half  wider  than  the  prothorax,  humeri  oblique,  obtusely  angu- 
lated  ;  sides  parallel  for  two-thirds  the  length,  then  obliquely  rounded  to 
the  tip  ;  strife  fine,  well  marked,  distinctly  punctured,  interspaces  flat,  with- 
out rows  of  bristles,  under  surface  covered  with  paler  scales,  legs  black, 
thinly  clothed  with  pale  hairs,  thighs  with  a  spot  of  pale  scales.  The  an- 
tennae are  black  and  extend  to  the  base  of  the  prothorax  ;  the  first 
joint  of  funicle  large,  conical,  as  long  as  the  three  following  united  ;  2-7 
equal  in  length,  but  increasing  rapidly  in  breadth,  and  vinited  not  longer 
than  the  club,  which  is  elongate-oval  and  pointed  at  tip.  Length  4.5  mm. ; 
.18  inch. 

Topeka,  Kansas  ;  Mr.  E  A.  Popenoe.  I  have  seen  two  specimens  of  this 
very  pretty  species,  one  of  which  has  been  kindly  placed  in  my  collection. 
It  differs  from  P.  comptus  not  only  by  the  color  but  by  the  first  joint  of  the 
funicle  being  large  and  the  second  not  longer  than  the  following;  the  funicle 
is  also  thicker  and  the  club  larger  than  in  that  species. 

The  scales  in  this  species  are  deeply  cleft  almost  to  the  base.  Since  the 
printing  ot  that  part  of  this  memoir  which  relates  to  the  present  genus,  I 
have  examined  more  closely  the  scales  of  the  ditferent  species  in  our  fauna 
with  the  following  result : 

A.  Scales  thick,  truncate,  or  very  feebly  emarginate  at  tip,  with  the  an- 
gles not  prominent. 


LeConte.]  APPENDIX.  415 

a.  Scales  scarcely  striate,  nearly  uniform  ;   comptus,  eximius. 

h.  Scales  distinctly  striate,  with  longer  narrow  ones  intermixed,  which 
are  the  bristles  of  the  elytral  interspaces.  These  bristles  arc  obtuse  in  quad- 
rkollis,  but  acute  in  the  European  rumicis. 

B.  Scales  elongate,  striate,  truncate  and  slightly  emarginate  at  tip, 
opimus. 

C.  Scales  elongate,  striate,  acutely  and  deeply  emarginate  at  tip,  with  the 
angles  acute  prolonged  ;  setigerm.  In  the  European  Pollux  the  scales  are 
less  deeply  emarginate.  The  bristles  are  similarly  striate,  but  longer  and 
acute. 

D.  Scales  narrow,  cleft,  with  slender,  acute  lobes  ;  bristles  longer,  acute 
and  simple. 

a.  Scales  cleft  for  two-thirds  the  length,  pubicollis. 

b.  Scales  cleft  nearly  to  the  base  ;  elonjafus,  Castor. 

E.  Pubescent,  without  intermixed  scales,  nigrirostris. 

It  is  apparent  therefore,  that  valuable  characters  may  be  found  for  the 
recognition  of  the  species  in  this  difficult  genus,  by  the  study  of  the  form 
of  the  scales. 

p.  155  add  : 

1.  Liixus  pleuralis  Lee,  Pr.  Ac.  Nat.  Sc.  Phila.,  1858,  78. 

This  species  has  a  slender  form,  and  is  clothed  with  rather  coarse  grayish 
pubescence,  with  a  stripe  of  paler  color  at  the  sides  of  the  prothorax  and  ely- 
tra. The  beak  is  cylindrical,  rather  stout,  about  twice  as  long  as  the  head, 
punctured,  carinate  for  one-half  its  length,  without  fovea  between  the  an- 
tennae ;  frontal  groove  short,  deep,  antennsE  inserted  one-fourth  from  the 
tip,  black  ;  fuuicle  stout,  first  joint  but  little  longer  than  the  second,  which 
is  scarcely  longer  than  the  third.  Prothorax  one-third  longer  than  wide, 
gradually  narrowed  from  the  base  forwards,  sides  straight ;  punctures  large, 
shallow,  approximate,  disc  longitudinally  broadly  and  somewhat  deeply 
excavated  towards  the  base  ;  medial  angle  produced,  obtusely  rounded. 
Scutellum  not  visible.  Elytra  a  little  wider  than  the  prothorax,  sides 
rounded  near  the  base,  then  converging  behind,  tips  separately  slightly 
prolonged,  and  acuminate  ;  striae  composed  of  distant  punctures,  mostly 
concealed  by  the  coarse  pubescence.     Length  7.6  mm.;  .30  inch. 

Arizona  and  Lower  California.  This  species  is  as  slender  as  L.  rubelhis, 
but  the  tips  of  the  elytra  are  only  sliglitly  prolonged,  and  the  other  char- 
acters are  quite  different. 

I  neglected  to  mention  that  the  third  joint  of  the  tarsi  in  L.  pleuralis  and 
texanus  is  much  less  broadly  dilated,  and  the  lobes  are  less  obtusely  rounded 
than  in  the  species  of  division  C.  The  lobes  therefore  envelop  more  closely 
the  base  of  the  fourth  joint,  thus  showing  a  transition  from  Cleonus  to  Lix- 
us,  which  would  probably  warrant  the  separation  of  these  species  as  a  dis- 
tinct genus. 

The  first  part  of  the  table  might  be  modified  to  indicate  this  difference, 
which  is  better  than  the  characters  I  have  used  on  p.  154. 


416  APPENDIX. 


[LeConte. 


Tarsi   with  the   third  joint  less  broadly   dilated  ;  cush- 
ions narrow,  imperfect  on  the  first  and  second  joints..  2. 
C.  Tarsi   with  the  tliird  joint  very  broadly  dilated  and 

more  deeply  bilobed;  cushions  of  under  surface  complete  3. 

2.  A.  Beak  cylindrical,  carinate  for  part  of  the  length  : 
Body  very  elongate,  sides  of  prothorax  straight,  elytra 

acuminate  at  tip  ;  pubescence  coarse  and  dense 1.  pleuralis. 

Body   less  slender,    pubescence  short  and  fine,  with 
longer  hairs  intermixed,  scutellum  distinct,  tips  of 

elytra  acutely  rounded mixtus. 

B.  Beak  stouter,  less  cylindrical,  very  indistinctly  ca- 
rinate   4. 

1-2.  Lixus  mixtus,  n.  sp. 

Elongate,  not  very  slender,  black,  pruinose  with  very  fine  short  gray  pu- 
bescence, with  longer  suberect  hairs  intermixed.  Beak  rather  stout,  cylin- 
drical, finely  but  strongly  punctured,  with  a  short  longitudinal  groove  be 
tween  the  antennae,  and  a  deep  frontal  fovea  ;  between  these  points  it  is 
distinctly  carinate  ;  thinly  pubescent,  with  suberect  hair,  nearly  naked  at 
the  tip.  Head  punctulate,  with  scattered  larger  punctures  which  extend 
upon  the  basal  part  of  the  beak  ;  antennsB  inserted  one-third  from  the  tip, 
black,  funicle  as  in  L.  pleuralis.  Prothorax  scarcely  longer  than  wide, 
narrowed  from  the  base  forward  and  rounded  at  tlie  sides,  convex,  bisinu- 
ate  at  base,  medial  lobe  broad,  prolonged,  obtusely  angulated ;  disc  densely 
punctulate,  with  large  shallow  punctures  not  densely  placed  ;  vaguely  and 
broadly  longitudinally  impressed  from  the  middle  to  the  base  :  there  is  a 
broad  lateral  stripe,  and  two  indistinct  dorsal  ones  of  denser  gray  hair. 
Scutellum  small,  but  distinct.  Elytra  separately  rounded  at  the  base,  the 
curvature  being  continued  to  the  sides,  so  that  the  humeral  angles  are  in- 
distinct, sides  parallel,  rounded  behind  ;  tips  separately  acutely  rounded, 
with  a  small  tuft  of  hair  which  gives  them  the  appearance  of  being  sub- 
acuminate  ;  broadly  impressed  near  the  base,  which  causes  the  basal  margin 
to  become  obtusely  elevated  ;  striae  composed  of  distant  round  punctures  ; 
sides  with  a  broad  stripe  of  denser  pubescence.  Beneath  clothed  with  gray 
pubescence,  coarsely  and  sparsely  punctured.     Length  10  mm.;  .40  inch. 

Colorado,  one  specimen,  which  I  owe  to  the  kindness  of  Mr.  B.  D.  Smith. 
At  first  sight  this  species  greatly  resembles  L.  placklus  (p.  159),  but  the 
characters  are  very  different. 

p.  154  in  tables  of  Lixus  modify  No.  11  as  follows  : 

11.  Scutellar  angle  of  prothorax  very  obtuse 11'. 

"  "  "         produced,  acute,  basal 

excavation  small,  deep fossus. 

11'.  Prothorax  with  shallower  punctures 8.  punctinasus. 

"               "    few  deep        "         ;  (smaller)....  9.  parous. 

7-8.  Lixus  fossus,  n.  sp. 

Black,  pruinose  with  cinereous  very  short  hair,  and  mottled  with  small 


LeConte.] 


APPENDIX.  417 


spots  of  longer  whitish  hair.  Head  and  bevxk  as  in  L.  punctinasxs,  densely 
rather  finely  pu-ictured  ;  beak  as  long  as  the  prothorax,  rather  stout,  chan- 
neled between  the  antennae,  tlien  obsoletely  cariuate  to  the  frontal  fovea  ; 
thinly  pubescent.  Prothorax  a  little  longer  than  wide,  gradually  narrowed 
from  base  to  tip,  very  feebly  rounded  on  the  sides,  base  slightly  oblique 
each  side,  medial  angle  prolonged,  acute  ;  disc  densely  rugosely  punctu- 
late,  with  scattered  larger  punctures;  basal  excavation  small  and  deep. 
Elytra  scarcely  wider  than  the  base  of  tlie  prothorax,  but  slightly  rounded 
near  the  ba«e  ;  tips  separately  acutely  rounded  ;  basal  impressions  shallow, 
stricB  composed  of  distant  round  punctures.  Antennae  brown,  inserted 
one-third  from  the  tip.     Length  8.5  mm.;  .35  inch. 

Enterprise,  Florida,  one  specimen  ;  Messrs.  Hubbard  and  Schwarz. 
Easily  known  by  the  small  deep  prothoracic  excavation  and  the  acute 
scutellar  lobe. 

Another  specimen  from  Florida  agrees  in  form  and  sculpture,  but  differs 
by  the  beak  more  finely  punctured,  or  rather  punctulate,  shining,  and  very 
slightly  pubescent.  The  basal  excavation  of  the  prothorax  is  larger,  less 
deep  and  vaguely  channeled  ;  the  medial  angle  is  equally  acute  and  pro- 
longed. The  elytra  are  separately  but  more  obtusely  rounded  at  tip.  I 
think  this  is  the  9  corresponding  to  the  (^  above  described. 

p.  158,  in  next  to  last  line  dele  L.  calandroides  as  a' synonym  of  Lixus 
Tmisculus,  and  add  on  page  153  : 

12.  01eonuscalandroid.es  ;  Lixus  cul.  Randall,  Bost.  Journ.  Nat.Hist. 
ii,  48. 

Massachusetts.  By  the  kindness  of  Mr.  E.  P.  Austin,  two  specimens  of 
this  species  were  recently  sent  to  me.  On  examination  I  found  to  my  great 
surprise,  that  it  is  a  species  of  Gleonus  c\ose\ja\\\ed  to  vitfatus  and  sparsus, 
but  differing  by  the  beak  more  finely  punctured,  and.  the  elytra  clothed  with 
uniform,  finer,  gray  pubescence.  The  antennae  are  much  stouter  than  in 
Lixus,  and  the  first  and  second  joints  of  the  hind  tarsi  are  not  spongy  be- 
neath.    Length  9.5  mm. ;  .375  inch. 

p.  176.  The  last  paragraph  under  1.  Eiulalus  setosns  belongs  to  3.  E. 
limatulus. 
p.  192,  add. 

2.  Magdalis  subtinctus,  n.  sp. 

Black,  subopaque,  elytra  with  a  blue  reflection.  Beak  shining,  sparsely 
punctured,  head  opaque,  sparsely  and  finely  punctured.  Prothorax  coarsely 
and  densely  punctured,  about  as  wide  as  long,  angle  near  the  tip  acute 
prominent,  sides  then  sinuate  to  the. basal  angles  which  are  acute  and 
prominent.  Elytra  convex,  gradually  slightly  wider  behind,  stria?  strongly 
punctured,  interspaces  very  finely  and  densely  rugose,  almost  alutaceous. 
Thiglis  with  a  small  acute  tooth,  clawg  distinctly  toothed  near  the  base. 
Length  4  mm.  ;  ,15  inch. 

California,  found  by  Mr.  Crotch  at  Gilroy  ;  related  to  M.  yracilts,  but 
the  eyes  are  smaller  and  more  flat,  and  the  sides  of  the  prothorax  more 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  3a 


418  APPENDIX. 


[LeConte. 


broadly  sinuate  behind  the  postapical  angle,    widest  at  the  middle,   and 
the  hind  angles  are  prolonged. 

3.  Magdalis  hispoides,  n.  sp. 

Elongate,  cuneiform,  deep  black,  somewhat  shining,  beak  as  long  as  the 
prothorax,  slightly  curved,  strongly,  but  not  densely  punctured  ;  head 
similarly  punctured,  eyes  large,  slightly  convex.  Antennae  inserted  above 
the  middle  of  the  beak.  Prothorax  a  little  longer  than  wide,  narrowed 
from  the  base  forward,  sides  nearly  straight,  not  toothed,  slightly  con- 
stricted near  the  tip  ;  hind  aagles  not  produced  ;  disc  densely,  moderately, 
coarsely  punctured.  Elytra  with  striae  not  impressed,  but  composed  of 
approximate  quadrate  punctures  ;  interspaces  as  wide  as  the  striae,  each 
with  a  row  of  well  marked  approximate  punctures,  thighs  not  toothed, 
claws  simple.     Length  3.  5  mm. ;  .  14  inch. 

British  Columbia,  one  specimen,  Mr.  Crotch.  Resembles  a  small  narrow 
Microrhop<(l(i  in  appearance. 

4.  Magdalis  gentilis,  n.  sp. 

Elongate,  black,  with  a  bluish  tinge  on  the  elytra,  beak  as  long  as  the 
prothorax,  curved,  finely  punctured.  Head  opaque,  sparsely  punctulate, 
antennne  inserted  about  the  middle  of  the  beak.  Prothorax  a  little  longer 
than  wide,  sides  parallel  from  the  base  for  nearly  one  half  the  length,  then 
rounded  to  the  tip,  which  is  tubularly  constricted  ;  hind  angles  not  pro- 
duced ;  disc  densely,  but  not  coarsely  punctured.  Elytra  with  striae  com- 
posed of  approximate  punctures,  interspaces  feebly  convex,  wider  than  the 
striiB,  subopaque,  finely  reticulate,  and  marked  with  small  rugose  punc- 
tures. Tliighs  armed  with  a  large  acute  tooth,  claws  not  toothed.  Length 
4  mm.  ;  .16  inch. 

California,  two  specimens  found  at  Lake  Tahoe,  by  Mr.  Crotch.  Resem- 
bles in  appearance  M.  stibtinctus  and  gracilis,  but  ditfers  by  the  form  of  the 
prothorax,  and  the  simple  claws. 

p.  233.  After  Notoloynus  bicolor  add. 

1-3.  Notolomus  myricse,  n.  sp. 

Of  the  same  size,  form  and  color  as  the  large  form  of  JV.  bicolor,  but  the 
beak  is  more  strongly  and  densely  punctured.  The  prothorax  is  very  finely, 
almost  imperceptibly  pubescent,  more  coarsely  punctured,  with  the  sides  and 
two  small  apical  spots  testaceous  :  the  lateral  cusp  is  prominent  as  in  N.  bi- 
color. Elytra  with  striae  composed  of  larger  punctures  ;  the  dark  markings  are 
very  distinct,  and  quite  different  in  pattern  :  there  is  a  cloudy  and  ill-de- 
fined spot  behind  the  scutellum  :  then  an  oblique  band  formed  by  elongate 
spots  on  the  2d,  4th,  6th  and  8th  interspaces  ;  then  a  large  apical  blotch, 
occupying  one-half  the  surface,  with  an  oblique  anterior  outline,  parallel 
with  the  oblique  band  ;  the  pale  color  extends  into  this  blotch  along  the  4th 
interspace  for  some  distance  ;  this  dark  blotch  includes  some  small  spots  of 
lighter  brown,  and  is  also  paler  at  the  sides,  along  which  it  extends.  An- 
tennae with  the  3d  joint  of  the'funicle  longer  than  the  3d.  Length  2.1 
mm. ;  .08  inch. 

New  Smyrna,  Florida  :  one  J*  kindly  sent  me  by  Mr.  E.  A.  Schwarz, 
who  informs  me  that  it  is  found  on  a  species  of  myrtle,  and  is  very  rare. 


LeConte.] 


APPENDIX.  419 


p.  225.  Modify  the  table  of  Conotraehehis  as  follows  : 

2.  Prothorax  not  sulcate,  usually  carinate  : I. 

(A.  Beak  rather  stout,  curved,  thighs  bidentate 

B.  Beak  slender,  very  long,  thighs  unidentate 

C.  Beak  rather  stout,  curved,  thighs  unidentate) 

Division  I, — A  will  remain  as  defined,  but  in  p.  229  to  C.  nivosus  must 

be  added  as  a  synonym  C.  j  I  igiatt.s,  p.  233,  which  is  only  a  poorly  de- 
veloped (^  in  which  the  denticle  of  the  thighs  has  almost  become  obsolete, 
thus  causing  them  to  appear  unidentate. 

Division  I, — B  will  contain  the  species  in  a  and  b  of  the  table,  on  p.  229  ; 
viz. :  cratcBji,  adspersus,  similis,  naso,  and 

11-12.  Conotrachelus  Belfragei,  n.  sp. 

Of  the  same  form  as  C.  similis,  but  much  smaller ;  brown,  clothed  with 
brown  and  fulvous  pubescent  with  a  very  large  white  spot  each  side  of  the 
prothorax,  and  another  saddle-shaped  one  behind  the  middle  of  the  elytra. 
Head  densely  clothed  with  fulvous  pubescence  ;  beak  half  as  long  as  the 
body,  slender,  very  slightly  curved,  shining,  sparsely  punctured,  substriate 
and  more  coarsely  punctured  on  the  sides  near  the  base,  antennne  inserted 
about  the  middle.  Prothorax  wider  than  long,  sides  nearly  parallel  from  the 
base  forone-half  the  length;  then  rounded  and  obliquely  narrowed  to  the  tip; 
disc  densely  and  coarsely  punctured,  with  a  few  white  hairs  on  the  medial 
line,  and  a  very  large  spot  of  white  pubescence  extending  from  the  sides 
over  two-thirds  of  the  surface  ;  this  spot  has  two  narrow  prolongations, 
the  anterior  one  oblique  and  reaching  the  apex,  the  other  transverse,  nearly 
attaining  the  median  line.  Elytra  one-half  wider  than  the  prothorax  at  base, 
humeri  slightly  oblique,  angulated,  but  not  dentate,  sides  converging  be- 
hind from  the  humeral  angles  ;  strioe  composed  of  very  large  and  deep 
quadrate  fovese,  almost  contiguous,  except  where  separated  by  elevated 
crests,  of  which  the  3d  interspace  has  one  near  the  base,  a  very  large  one 
about  the  middle,  and  a  smaller  one  behind  the  middle  ;  ths  5th,  7th  and  9th 
interspaces  are  narrow  and  carinate,  and  on  the  8th  there  is  a  small  tuber- 
cle near  the  tip,  clothed  with  white  hair;  there  are  besides  two  short  lines 
of  white  pubescence  at  the  base  of  each  elytron.  Under  surface  densely 
punctured,  abdomen  with  three  rows  of  white  spots.  Thighs  with  a  broad 
white  ring,  and  a  large  acute  tooth.     Length  4  mm.;  .16  inch. 

Texas,  one  specimen,  Mr.  Belfrage. 

p.  247  to  2.  Pseudomus  sedentarius  add. 

A  specimen  was  collected  at  Enterprise,  Florida,  and  kindly  sent  me  by 
Mr.  E.  A.  Schwarz.  It  differs  from  P.  truncatus  not  only  by  the  thighs 
being  unarmed,  and  by  the  elytral  spot  not  being  narrowed  at  the  tip,  but 
also  by  the  form  of  body  which  is  elongate  and  subfusiform,  wiiile  in  P. 
truncatus  it  is  much  stouter,  with  the  prothorax  broader  than  long,  and 
much  more  narrowed  in  front.  The  prothorax  and  elytra  are  marked  with 
several  small  spots  of  mixed  yellow  and  white  scales.  Length  4.3  mm.; 
.17  inch. 

p.  289.  Aulobaris  an^hracina,  transfer  to  Pseuiobaris  p.  297  and  add. 

The  examination  of  a  second  specimen  in  better  condition  shows  that  the 


420  APPENDIX. 


[LeConte. 


claws  are  approximate  and  connate  at  base.  It  is  therefore  to  be  placed 
next  to  P.  nigrinus,  which  has  the  pectoral  groove  deeper  and  more  sharply 
defined  than  in  the  other  species  of  Pseudobaris.  I  observe  a  few  white 
scales  at  the  base  of  the  third  interspace,  which  represent  the  more  conspi- 
cuous spot  seen  in  the  othei's. 

1-2  Pseudobaris  pectoralis,  n.  sp. 

Black,  not  very  shining,  oval,  subelongate.  Beak  as  long  as  the  pro- 
thorax,  cylindrical,  not  stout,  coarsely  punctured  on  the  sides,  more  sparsely 
and  more  finely  above,  separated  from  the  head  by  a  distinct  constriction  ; 
head  with  a  few  small  scattered  punctures.  Prothorax  as  wide  at  base  as 
the  length,  rapidly  obliquely  narrowed  in  front,  scarcely  rounded  on  the 
sides,  moderately  constricted  near  the  tip  ;  base  with  the  scutellar  lobe 
broad  and  obtusely  rounded  ;  disc  coarsely  punctured,  more  densely  and 
somewhat  confluently  at  the  sides ;  dorsal  line  indistinct.  Elj'tra  with 
deep,  indistinctly  punctured  striae  ;  interspaces  a  little  wider  than  the  striae, 
each  with  a  single  row  of  large,  deep  punctures.  Beneath  coarsely  punc- 
tured; punctures  becoming  smaller,  but  not  more  distant  upon  the  abdo- 
men. Prosternum  with  a  broad,  deep  groove  in  front  of  the  coxa3,  limited 
b}'^  parallel  acute  ridges  ;  claws  small,  connate  at  base.  Length  4.4  mm.; 
.175  inch. 

New  Smyrna,  Florida  ;  one  specimen,  Mr.  E.  A.  Schwarz.  This  species  is 
related  to  P.  anthracina,  but  differs  by  the  prothorax  more  obliquely  nar- 
rowed in  front,  and  less  rounded  on  the  sides,  and  by  the  deep  punctures 
of  the  interspaces  of  the  elytra. 

p.  298.  Change  P.  angusta  to  angustula  ;  the  former  name  being  pre- 
occupied in  Baris.  The  pectoral  groove  is  deep  and  sharply  defined  as  in 
P.  nigrina. 

p.  303,  add. 

2.  Stethobaris  corpulentus,  n.  sp. 

Larger,  broader  and  more  convex  than  8.  tuhulatus,  shining  black. 
Beak  long,  curved,  not  very  slender,  sparsely,  finely  punctured  above, 
more  coarsely  at  the  sides,  separated  from  the  head  by  an  indistinct  con  - 
striction  ;  head'  sparsely  and  finely  punctured.  Prothorax  much  broader 
than  long,  very  much  rounded  on  the  sides,  and  narrowed  in  front,  strongly 
tubularly  constricted  near  the  tip  ;  disc  sparsely  and  not  coarsely  punc- 
tured ;  basal  lobe  broad,  short,  truncate.  Elytra  gradually  wider  for  a- 
short  distance,  and  forming  an  obtuse  angle  with  the  rounded  sides  of  the 
prothorax,  then  obliquely  narrowed  and  rounded,  entirely  covering  the 
pygidium  ;  striae  very  deep,  impunctured  ;  interspaces  wider  than  the  striae, 
with  a  few  scarcely  perceptible  punctures.  Beneath  coarsely  punctured  ; 
third  and  fourth  ventral  segments  with  a  single  transverse  row  of  punc- 
tures ;  fifth  densely,  more  finely  punctured.  Prosternum  with  a  broad 
groove,  distinctly  limited  by  acute  ridges.     Length  3.4  mm.;  .13  inch. 

Tampa,  Florida ;  one  specimen,  Mr.  E.  A.  Schwarz. 

p.  303.  The  table  of  Microcholus  should  read  : 

Prothorax  punctured  ;  constriction  near  the  tip. 


LeCoiite.] 


APPENDIX.  J  21 


Elytra  d  jeply  striate 1.  striatus. 

fiuely  sl^riate 2.  puneticollis. 

Protliorax  smooth,  constriction  much  deeper  and  di-stant 

from  the  tip 3.  laevicollis. 

p.  308,  make  the  following  changes  in  the  table  of  Centriruxs,  divi- 
sion C  : 

8.  Protliorax  very  densely  punctured;  scales  yellowish. . .         20.  falsus. 

"  less         "  "  8'. 

8'.  Pubescence  white,  scale-like canus. 

"  yellowish,  fine  and  capillary 21 .  longuluG. 

20-2 1.  Centrinus  canus,  n.  sp. 

Elcmgate,  rather  depressed,  black,  shining,  tolerably  densely  clothed 
with  small,  whitish  scales.  B'akas  long  as  the  head  and  protliorax,  slender, 
slightlj'  curved,  smooth  and  polished,  punctured  only  at  the  base.  Head 
finely  punctured,  frontal  impression  distinct.  Protliorax  scarcely  longer 
than  wide,  gradually  slighJy  narrowed  from  the  base  for  more  than  half 
the  length,  then  rounded,  and  more  suddenly  narrowed  to  the  tip,  where 
it  is  feebly  constricted  ;  strongly  and  rather  densely,  but  not  confluently 
punctured,  with  a  narrow,  smooth  dorsal  line.  Elytra  a  little  wider  near  the 
base,  then  very  slightly  narrowed  ;  conjointly  rounded  at  tip,  stri;e  deep, 
interspaces  flat,  rugosely  punctulate,  with  the  scales  not  arranged  in  rows. 
Proslernum  transversely  impressed  as  usual,  and  longitudinally  concave  ; 
apical  part  with  a  small  fovea  ;  hind  margin  not  emarginate  ;  front  coxae 
widely  separated  ;  fifth  ventral  segment  longer  than  the  fourth.  Funicle  of 
antennae  slender  ;  first  joint  as  long  as  the  second  and  third  united  ;  sec  nd 
twice  as  long  as  the  third.     Length  4.7  mm. ;  .18  inch. 

Enterprise,  Florida;  one  specimen,  Mr.  E.  A.  Schwarz. 

On  p.  317,  add. 

2.  Csntrinus  strig-atus,  n.  sp. 

Elongate,  parallel,  brownish  black,  thinly  pubescent  with  yellowish 
hairs.  Beak  cylindrical,  rather  slender,  curved,  as  long  as  the  heftd  and 
prothorax,  dark  brown,  shining,  sparsely  and  finely  punctured.  Head 
sparsely  punctulate.  Prothorax  scarcely  wider  than  long  ;  sides  nearly 
parallel  for  half  the  length,  then  rounded  and  obliquely  narrowed  to  the 
tip,  which  is  strongly  constricted  ;  surface  deeply,  coarsely  and  confluently 
punctured  ;  the  intervals  between  the  punctures  form  longitudinal  plica% 
as  in  Onych'ibaris  rugkollts,  but  finer ;  medial  line  smoothly  elevated,  ex- 
tending nearly  to  the  tip  and  base.  Elytra  not  at  all  wider  than  the  has  ; 
of  the  prothorax,  parallel  on  the  sides  for  two-thirds  the  length,  then  ob- 
liquely narrowed  to  the  tips,  Avhich  are  very  broadly  conjointly  rounded, 
and  seem  almost  truncate,  though  the  pygidium  is  entirely  concealed  ;  stria- 
deep,  finely  punctured  ;  interspaces  a  little  wider  than  the  striae,  with  single 
rows  of  deep  punctures,  which  bear  small,  reclinate  yellow  hairs.  Beneath 
strongly  punctured.  Prosternum  deeply,  transversely  impressed,  not  fove- 
ate  ;  front  coxai  widely  separated  ;  metathoracic  episterna  narrower  than 


422  APPENDIX.  [LeConte. 

usual  ;  fifth  ventral  segment  as  long  as  the  third  and  fourth  united.  Antennae 
with  the  first  joint  of  the  funicle  elongate  ;  second  not  longer  than  the  third. 
Length  4.3  mm. ;  .17  inch. 

Colorado  ;  one  specimen,  Mr.  B.  D.  Smith.  This  remarkable  species  does 
not  seem  related  to  any  other  in  our  fauna  by  form  or  sculpture. 

p.  318,  add. 

3.  Zygobaris  ?  convexus,  n.  sp. 

Less  robust,  but  more  convex,  shining  black  (sparsely  clothed  with  white 
scales?)  Beak  slender,  slightly  curved,  as  long  as  head  and  prothorax, 
punctured  -towards  the  base,  smooth  towards  the  tip  ;  basal  transverse  im- 
pression distinct.  Head  sparsely  punctulate.  Prothorax  not  wider  than 
long,  much  rounded  on  the  sides,  narrowed  and  constricted  in  front,  deeply 
and  coarsely  punctured,  with  a  smooth,  dorsal  line,  and  an  indistinct 
smooth  space  each  side  half  way  towards  the  sides.  Elytra  suddenly  wider 
at  base  than  the  prothorax  ;  humeri  obtusely  rounded,  sides  converging  be- 
hind ;  strife  deep,  irapunctured,  interspaces  a  little  wider  than  the  strise, 
flat,  each  with  a  single  row  of  very  small  punctures,  which  probably  bore 
white  scales.  Beneath  strongly  punctured,  thinly  pubescent,  prosternum 
flat,  not  transversely  impressed  nor  foveate;  front  coxae  not  very  widely 
separated.  Funicle  of  antennai  stout ;  first  joint  elongate  ;  second  not  longer 
than  third.     Length  2.4  mm.;  .10  inch. 

Enterprise,  Florida  ;  one  specimen,  Mr  E.  A.  Schwarz.  The  scales  have 
been  removed  by  abrasion,  and  only  a  few  remain  near  the  base  of  the  ely- 
tra, and  the  sides  and  base  of  the  prothorax.  The  apical  constriction  of  the 
prothorax  does  not  continue  across  the  prosternum  as  in  tlie  other  species, 
and  as  in  all  Geiitrinus  known  to  me,  but  disappears  in  the  apical  margin, 
thus  leaving  the  front  part  of  the  prosternum  flat.  This  should  probably 
be  considered  a  generic  difference,  but  I  am  unwilling  to  separate  it  with- 
out having  better  preserved  specimens  for  study.  The  claws  seem  to  be 
very  small,  but  hardly  connate  at  base. 

p.  319,  add. 

2.  Barilepton  lineare,  n.  sp. 

Elongate,  black,  clothed  with  small,  dirt-colored  scales,  which  on  the 
elytra  are  scarcely  wider  than  long,  obovate,  and  broadly  subtruncate. 
Beak  stouter  than  B.  fiUforme,  and  more  coarsely  punctured  at  base.  Pro- 
thorax densely  and  deeply,  though  not  very  coarsely  punctured,  with  a 
narrow,  smooth,  dorsal  line.  Elytra  a  little  wider  than  the  prothorax  at 
the  base,  striate  and  punctured  as  m  B.  filiforme.  Length  3.8  mm.;  .15 
inch. 

Sumter  County,  Florida  ;  one  specimen,  Messrs.  Hubbard  and  Schwarz. 
Differs  from  B.  filiforme  by  the  larger  size,  the  punctuation  of  the  protho- 
rax and  the  form  of  the  scales  of  the  elytra  ;  the  elytra  are  also  evidently, 
though  but  slightly  wider  than  the  base  of  the  prothorax,  and  the  sides  of 
the  latter  are  suddenly  rounded  in  front  of  the  middle. 

3.  Barilepton  cribricolle,  n.  sp. 

Of  the  same  siz3  and  form  as  B.  I'neare,  but  clothed  with  elongate,  white 


LeConte.] 


APPENDIX.  423 


scales,  wliich  form  white  lateral  vittse  on  the  prothorax,  and  discoidal  lines 
on  the  elytra.  Black,  beak  stout,  curved,  punctured  at  base,  smooth 
towards  the  tip.  Prothorax  more  coarsely  but  less  densely  punctured, 
almost  cribrate,  sides  nearly  parallel,  rounded  behind  and  obliquely  nar- 
rowed in  front  of  the  middle  ;  dorsal  line  distinct.  Elytra  suddenly  and  more 
distinctly  wider  than  the  prothorax  at  bass  ;  striae  narrow,  deep,  im- 
punctured,  interspaces  more  strongly  punctured,  white  scales  denser 
on  the  second  interval  for  four-fifihs  the  length  ;upon  the  fourth  there  is  a 
short  basal  line,  then  a  long  line  extending  from  one-fourth  of  the  length 
to  three  quarters  ;  on  the  sixth  a  basal  line  extending  to  one-fourth  of  the 
length.  Beneath  strongly  punctured,  thinly  clothed  with  white  scales, 
metathoracic  episterna  and  spots  on  third,  fourth  and  fifth  ventral  seg- 
ments densely  scaly  ;  the  scales  are  also  gradually  more  dense  on  the 
sides  of  the  first  and  second  ventral  segments.  Length  3.8  mm.;  .15  inch. 
Enterprise,  Florida;  one  specimen,  Mr.  E.  A.  Schwarz. 

4.  Barilepton  quadricolle,  n.  sp. 

Very  narrow,  linear,  black,  clothed  with  elongate  small  'whitish  scales, 
beak  less  stout,  punctured  at  base,  smooth  at  tip.  Prothorax  as  long  as 
wide,  sides  parallel  behind,  suddenly  rounded  and  narrowed  in  front  of 
the  middle  ;  strongly  and  rather  densely  punctured  ;  dorsal  line  smooth, 
distinct,  scales  more  dense  at  the  sides.  Elytra  suddenly  a  little  wider 
than  the  base  of  the  prothorax  ;  striae  narrow,  deep,  impunctured,  inter- 
spaces finely  punctured,  beneath  strongly  punctured,  thinly  clothed  with 
small  whitish  scales.     Length  3.2  mm.;  .13  inch. 

Nebraska,  one  specimen  ;  given  me  by  Mr.  Ulke.  I  confounded  this 
species  with  B.  JiUforme,  which  it  resembles  in  the  form  of  the  prothorax, 
but  differs  by  the  stronger  punctuation  and  by  the  elytra  being  distinctly 
wider  than  the  prothorax  just  behind  the  base  ;  the  scales  are  also  whiter 
and  larger,  and  the  elytral  striae  are  deeper. 

These  four  species  may  therefore  be  distinguished  as  follows  : 

Body  very  narrow,  filiform,  elytra  not  wider  at  base 
than  the  prothorax,  which  is  densely  but  not  deeply 
punctured,  scales  very  small,,  gray,  denser  at  the 
sides  of  prothorax  and   elytra 1.  filiforme. 

Body  very  narrow,  prothorax  strongly  and  densely 
punctured,  suddenly  narrowed  in  front,  scales 
of  elytra  oval,  whitish,  not  very  small 4.  quadricolle. 

Body  linear,  but  less  narrow,  prothorax  densely,  less 
coarsely  punctured  ;  elytra  a  little  wider  than  the 
prothorax  at  base,  scales  very  small,  rounded,  yellow- 
gray  2.  lineare. 

Body  as  in  lineare,  but  the  elytra  are  more  conspicuously 
wider  near  the  base,  and  the  scales  are  elongate, 
white,  and  form  stripes  ;  prothorax  more  coarsely 
punctured 3.  cribricoUe. 


424  APPENDIX. 


[LeConte. 


p.  330.  in  Rhyncliophorini  add  : 

A  specimen  of  the  well-known  Ehyiichophorus  palmnrum  was  collected 
by  Mr.  Hardy,  in  Southern  California,  west  of  San  Diego,  and  kindly  sent 
to  me  by  Dr.  David  Sharp.  As  groves  of  palm  trees  are  known  at  several 
placfs  on  the  eastern  slope  of  the  Sierra  in  that  region,  it  is  not  surprising 
that  they  should  be  depredated  on  by  this  species,  which  is  widely  diffused 
through  the  Antilles  and  tropical  America. 

Quid?  Rhynchophorus  noxius  Gyll.  Scli  iv,  821.  Perhaps  an  im- 
ported specimen  of  R.  palmarum. 

p.  331.  Add  the  three  following  new  species  of  Sphenophorus ;  the  first 
belongs  to  Horn's  group  IV  ;  the  others  to  V  ;  Proc.  Am.  Phil.  Soc.  xiii, 
412. 

Sphenophorus  velutinus,  n.  sp. 

Elongate,  brownish  black,  entirely  opaque  and  velvetj^  in  lustre.  Beak 
siiorter  than  tlie  prothorax,  curved,  somewhat  compressed,  smooth  ;  an- 
tennaj  inserted  immediately  in  front  of  the  eyes.  Prothorax  more  than 
one-half  longer  than  wide,  oval,  strongl}^  tubulate  in  front ;  the  elevations 
are  very  vague  and  ill  defined,  the  impressions  are  marked  with  shallow 
punctures  ;  sides  more  densely  and  more  deeply  punctured  ;  dorsal  line 
narrow,  slightly  elevated,  extending  nearly  to  the  base  and  apical  constric- 
tion. Elytra  not  longer  than  the  prothorax,  narrowed  behind  from  near 
the  base  ;  striae  very  fine,  marked  with  a  few  distant  small  punctures  ;  two 
outer  strise  with  more  numerous  larger  punctures  ;  interspaces  flat,  obsolete- 
ly  punctulate.  Pygidium  with  a  few  large  deep  punctures,  beneath 
sparsely  punctured.  Front  and  middle  tarsi  with  the  third  joint  broadly 
dilated,  spongy  each  side  beneath  ;  third  joint  of  hind  tarsi  slightly  dilated, 
not  wider  than  long.     Length  11  mm.;  .43  inch. 

One  specimen,  Florida.     Very  different  from  all  others  in  our  fauna. 

Sphenophorus  variolosus,  n.  sp. 

Of  the  same  general  form  as  S.  arizonensis,  black,  somewhat  shining  ; 
beak  shorter  than  the  prothorax,  slightly  curved,  strongly  punctured  at 
base,  nearly  smooth  at  tip,  which  is  moderately  comiiressed.  Autennai 
inserted  immediately  in  front  of  the  eyes  ;  head  finely  and  sparsely  punc- 
tured with  a  large  frontal  fovea  prolonged  anteriorly  in  a  channel  which 
extends  as  far  as  the  beginning  of  the  narrow  part  of  the  beak.  Prothorax 
obiong,  longer  than  wide,  sides  strongly  rounded  in  front,  and  tubulate  at 
the  apex  ;  impressions  and  elevations  very  vague,  indicated  by  the 
presence  of  larger  punctures  in  the  places  where  the  impressions  should 
be,  and  of  finer  punctures  on  the  elevations ;  there  is  a  group  of  large 
punctures  just  behind  the  tubular  constriction,  and  behind  these  punctures 
there  is  a  smooth  dorsal  line  extending  nearly  to  the  base.  Elytra  with 
fine  deeply  impressed  striae,  along  which  are  placed  at  irregular  intervals 
very  large  shallow  pits,  through  which  the  striae  run,  producing  a  very 
curious  appearance  ;  interspaces  finely  sparsely  punctulate,  not  elevated  ; 
the  punctures  of  the  outer  stride  are  smaller  and  deeper  ;  those  of  the  next 


LeConte.] 


APPENDIX. 


are  quadrate  and  confluent.  P^'gidium  coarsely  punctured ;  beneath 
shining,  sparsely  punctured;  more  coarsely  on  the  5111  ventral,  which  is 
impressed  near  the  tip  ;  flanks  of  prothorax  and  middle  of  abdomen  nearly 
smooth.  Third  joint  of  tarsi  scarsely  broader  than  second,  glabrous  be- 
neath, fringed  only  at  the  sides.     Length  9.7  mm.;  .38  inch. 

Colorado,  one  specimen,  Mr.  B.  D.  Smith.  The  presence  of  the  post- 
apical  group  of  large  punctures  on  the  prothorax  affiliates  this  species  to 
C.  pl%cidus,  which  however  it  does  not  otherwise  resemble. 

Splisnophorus  oblitus,  n.  sp. 

Of  the  same  general  form  as  8.  phfid'ii,  black,  covered  with  a  dirt-col- 
ored crust.  Beak  two-thirds  the  length  of  the  prothorax,  stout,  slightly 
curved,  more  strongly  compressed  at  tip  ;  punctured  at  base,  smooth  at 
tip  ;  frontal  groove  deeply  excavated,  extending  to  the  base  of  tlie  narrow 
part  of  the  beak.  Anteunte  inserted  just  in  front  of  the  eyes.  Prothorax 
more  than  one-half  wider  than  long,  sides  parallel  for  two-thirds  the  length, 
then  gradually  and  obliquely  narrowed  to  the  tip,  which  is  less  strongly 
tubulate  than  usual ;  surface  covered  with  large,  shallow  punctures,  with 
the  depressions  very  feebly  indicated  :  the  punctures  just  behind  the  con- 
striction are  a  little  denser  at  the  middle,  representing  thereby  the  small 
impression  which  is  distinct  in  >?  phicidas,  and  nearly  obsolete  in  S.  vario- 
losus  ;  there  is  no  smooth  dorsal  line.  Elytra  with  fine  striae,  very  feebly 
punctured  ;  interspaces  with  single  rows  of  very  fine  punctures,  alternately 
a  little  wider  and  more  elevated.  Pygidium  sparsely  and  deeply  punctured. 
Beneath  coarsely  punctured  on  the  flanks  of  the  prothorax  ;  punctures 
smaller  and  distant  at  the  middle  of  the  abdomen  ;  fifth  ventral  sparsely 
and  very  deeply  cribrate.  Thighs  sparsely  and  rather  feebly  punctured  ; 
front  tibiae  distinctly  sinuate  on  the  inner  side,  but  not  angulate  ;  tarsi 
with  the  third  joint  not  dilated,  glabrous  beneath,  fringed  only  at  the  sides. 
Length  9.6  mm.;  .38  inch. 

Texas  ;  one  specimen,  Mr.  G.  W.  Belfrage.  This  is  also  to  be  placed 
near  placidus,  to  which  it  has  but  little  resemblance.  It  also  shows  a  ten- 
dency towards  the  comprensivontrin  form,  in  which,  however,  the  beak  is 
not  curved,  and  the  front  tibise  are  strongly  angulated  on  the  inner  side. 

Sphenophorus  cariosus  Oliv.,  Ent.  v,  83,  91,  pi.  28,  415  ;  Horn,  Pr. 
Am.  Phil.  Soc  1873,  420,  cum.  synon. 

Dr.  Horn  has  suggested  to  me  that  this  species  and  8.  calloms  Oliv., 
should  be  united.  After  careful  examination  of  the  specimens  in  my  col- 
lection, I  think  this  view  is  correct.  Those  who  are  inclined  to  adopt  it 
will  place  callosus  as  the  synonym,  since  it  is  represented  by  old  and 
abraded  specimens. 

Sphenophorus  sculptilis  Uhler,  Proc.  Acad.  Nat.  Sc.  Phil.  1855, 
416  ;  Horn,  1.  c.  424. 

With  this  species  should  be  united  as  a  synonym  S.  Zew  Walsh,  Practical 
Entomologist,  ii,  117  ;  Riley,  Missouri  Ent.  Report,  iii  (1871),  59,  fig.  32. 

PKOC  AMER.  PHILOS.  SOC.  XV.  96.  3b 


42G  APPENDIX. 


[LeConte. 


p.  331  add  the  following  new  genus  : 

TRICHISOHIUS  n.  g. 

This  genus  is  founded  upon  one  species,  which  agrees  with  Sphenoph- 
orus,  except  in  the  following  characters  : 

The  inner  side  of  the  front  and  middle  coxiB  and  the  middle  of  the  meta- 
sternum  and  the  first  and  second  ventral  segments  are  clothed  with  long  hair; 
the  thighs  beneath,  and  the  tibiiE  on  the  inner  side  are  fringed  with  long 
hair  ;  the  genital  segment  of  the  (^  projects  (as  in  Ehynchophonts)  and  is 
fringed  with  hair  at  the  tip.  The  third  joint  of  all  the  tarsi  is  slender,  not  at 
all  dilated  or  emarginate,  glabrous  beneath,  fringed  at  the  sides,  and  quite 
as  long  as  the  second  joint,  which  is  equal  to  the  first. 

The  prothorax  is  uniformly  punctured,  without  impressions,  but  with  a 
narrow,  smooth  dorsal  line,  and  the  elytral  striae  are  deep  and  crenate  ;  the 
interspaces  are  even,  and  scarcely  punctulate. 

1.  T.  crenatus,  n.  sp. 

Black,  subopaque.  Beak  scarcely  more  than  half  the  length  of  the  pro- 
thorax,  slender,  slightly  curved,  finely  punctured,  with  a  very  fine  longi- 
tudinal impressed  line  near  the  base,  which  terminates  in  a  small,  frontal 
fovea.  Prothorax  nearly  one-half  wider  than  long,  narrowed  in  front  of 
the  middle,  and  rounded  on  the  sides,  tubularly  constricted  near  the  tip  ; 
base  nearly  truncate  with  the  edge  acute,  and  sparsely  fringed  with  yellow 
hairs  ;  disc  rather  densely  but  not  coarsely  punctured,  more  coarsely  towards 
the  base,  each  side  of  the  medial  line,  where  it  is  feebly  impressed  ;  dorsal 
line  narrow,  very  distinct,  slightly  elevated  near  the  base.  Elytra  at  base 
a  little  wider  than  the  prothorax,  basal  angles  slightly  projecting  forwards  ; 
striae  deep,  crenate,  interspaces  nearly  flat,  scarcely  perceptibly  punctulate  ; 
humeri  reddish  ;  pygidium  with  the  hind  part  strongly,  rather  densely- 
punctured  ;  apex  (^)  declivous,  smooth,  concave  ;  genital  plate  prominent, 
smooth.  Beneath  shining,  strongly  but  not  densely  punctured  ;  punctures 
larger  on  the  metasternum  ;  side  pieces  narrow,  parallel ;  prosternum  very 
narrow  between  the  coxaj.     Length  8.8  mm.;  .35  inch. 

Colorado ;  one  specimen,  Mr.  B.  D.  Smith. 

p.  365,  add  as  a  synonym  to 

Tomicus  pini ;  T.  pallipes  Sturm,  Cat.  1826,  p.  76  ;  T.  dentatus  Sturm, 
ibid.  pi.  iv,  f.  30.     Say's  name  has  priority  by  one  year. 

p.  357,  add  as  a  synonym  to 

Xyloterus bivitatus ;  Apate rufitarsisKirhj,  Fauna Bor.  Am.  iv,  193. 

p.  337,  after  Oononotus  add 

HIMATIUM  Woll. 

I  would  refer  to  this  genus,  which  is  fully  described  by  Mr.  Wollaston 
in  Trans.  Ent.  Soc,  London,  1868,  461,  a  small  slender  reddish-brown 
opaque  Cossonide,  thinly  clothed  with  coarse  hair. 

It  has  all  the  characters  given  in  the  description,  except  that  the  hairs 
are  not  long,  and  the  antennae  are  not  very  pilose  and  the  surface  not 
shining.     The  more  important  ones  may  be  recapitulated  as  follows  : 


LeConte.] 


APPENDIX.  427 


Body  narrow,  linear,  rather  flat,  sparsely  pubescent.  Beak  parallel, 
cylindrical,  separated  from  the  front  by  a  distinct  impression  ;  eyes  rather 
large,  transverse,  coarsely  granulated,  situated  on  the  sides  and  undcir  sur- 
face of  the  head,  not  visible  from  above.  Antenna?  inserted  about  the  mid- 
dle of  the  beak,  short  and  stout,  scape  attaining  the  eyes  ;  funicle  first  joint 
large,  2-7  very  short,  closely  connected,  club  small,  oval,  shining,  sparsely 
hairy,  annulated  only  at  the  tip.  Metasternum  rather  long ;  front  coxae 
widely  separated,  the  others  still  more  distant ;  tibise  with  the  terminal 
hook  very  large  ;  tarsi  rather  short,  third  joint  but  little  wider,  somewhat 
bilobed. 

The  genus  has  thus  far  occurred  only  in  Malabar,  and  PhoUdonotus, 
which  immediately  follows  it,  is  found  in  Borneo.  It  appears,  therefore, 
to  be  a  third  instance  of  that  remarkable  distribution  which  I  have  pre- 
viously mentioned  in  the  Heteromerous  genera  Othnius  and  Ischalia. 

1.  H.  errans  n.  sp. 

Very  elongate,  reddish-brown,  nearly  opaque,  thinly  clothed  with  coarse 
yellowish  hair.  Beak  a  little  shorter  than  the  prothorax,  rugosely  punc- 
tured, transversely  impressed  at  the  base.  Head  finely  punctured.  Pro- 
thorax  more  than  one-half  longer  than  wide  ;  widest  near  the  base,  sides 
suddenly  rounded  behind  the  widest  part,  but  gradually  obliquely  nar- 
rowed in  front  and  nearly  straight ;  slightly  constricted  near  the  tip  ; 
disc  rather  flat,  densely  and  coarsely  punctured,  without  impressions  or 
dorsal  line.  Elytra  not  wider  than  the  widest  part  of  the  prothorax,  trun- 
cate at  base,  scutellum  not  visible,  sides  parallel,  rounded  at  tip  ;  striae 
deep  and  broad,  punctures  lai'ge,  quadrate,  interspaces  very  narrow.  Body 
beneath  very  coarsely  punctured ;  punctures  of  ventral  segments  not 
smaller.     Length  2  mm. ;  .08  inch. 

District  of  Columbia  ;  collected  by  Mr.  Ulke.  I  owe  a  specimen  of  this 
interesting  species  to  the  kindness  of  Dr.  Horn. 


428  APPEKDIX, 


[LeConte. 


APPENDIX  II. 

UNRECOGNIZED   SPECIES. 

1.  Rhynchites  virdiseneus  Randall,  Bost.  Journ.  Nat  Hist.,  ii,  23. 
R.  coi-pore   eloagato  viridi-iEueo  ;    capite  subnigro,  dense   punctulato  ; 

rostro  dilatato,  supra  utrinque  sulcato  ;  thorace  geneo,  dense  et  profunde 
punctulato  ;  eh'tris  viridi-teneis,  seriebus  vagls  punctulatis  ;  pedibus  piceis. 
Body  elongated,  brassy.  Head  darker,  profoundly  punctured  ;  front 
somewhat  depressed  ;  rostrum  dilated,  especially  at  tip,  which  presents  a 
tubercle  on  each  side,  an  impressed  line  nearly  the  whole  length  on  each 
side.  Thorax  brassy,  densely  and  profoundly  punctured.  Elytra  green- 
ish brassy,  with  profound  punctures  disposed  in  irregular  lines  ;  feet  in- 
clining to  piceoui.  Length  about  three-twentieths  of  an  inch.  Occured 
at  Augusta  (Maine\  June.  Perhaps  allied  to  the  R.  mnitns  oi  Say,  but 
the  elytni  of  that  insect  are  described  as  cren  itestriate. 

2.  Rhynchites  coagrua  Walker,  Nat.  in  British  Columbia  by  J.  K. 
Lord,  ii,  331. 

Nigricantecyaiea,  aspere  punctata  ;  rostro  thoracis  longitudine,  thoracis 
lateribus  convexis  ;  elytris  latis,  lateribus  sub-convexis. 

Blackish  blue,  roughly  punctured.  Rostrum  as  long  as  the  thorax, 
slightly  dilated  towards  the  tip.  Tliorax  narrow^ed  in  front,  sides  convex. 
Elytra  much  broader  than  the  thorax  and  about  twice  its  length  ;  sides 
slightly  convex.     Length  3  lines. 

Rhynchites  humeralis  B  )h..  Eugenics  Resa,  Ins.  117. 

Oblongo-ovatus,  modice  convexus,  niger  tenuiter  pubescens  ;  antennis 
tibiisque  ferrugineis  ;  prothorace  confertissime  punctulato,  lateribus  parum 
ampliato  ;  elytris  crebre  punctato-striatis,  macula  huraerali  rufotestacea 
ornatis.     Long,  2  mm.;  lat.  l^mra. 

Var.  «:  elytris  rufo-ferrugineis  dorso  infuscatis. 

If  this  species  properly  belongs  to  our  fauna,  it  will  be  readily  recognized 
without  the  aid  of  the  long  description  which  accompanies  the  above 
diagnosis. 

3.  Polydrosus  amarlcanus  Gyll.,  Sch.  Cure,  ii,  136. 

"Oblougus.  niger  opacns,  ciuereosquamulosus,  fuscoque  pubescens  ;  an- 
tennis tibiis  tarsisque  ferrugineis  ;  thorace  pulvinato,  confertim  punctato  ; 
elytris  punctato-striatis,  apice  acuminatis,  in  dorso  plagiatim  nigro-varic- 
gatis.  America  borealis,  ex  musieo  Dom.  Com.  Mannerheim,  ad  de- 
scribendum,  amice  communicatus. 

Parvus:  Sitomi  lineelh  xmwov .  Caput  majusculum,  subquadratum,  supra 
planum,  confertim  punctulatum,  nigrum,  sat  dense  cinereo-squamulosum  ; 
oculisemi-globosi,  nigro  brunnei  ;  rostrum  capite  paulobreviusetangustius, 
crassum,  p  )rrectum,  angulatum,  supra  planum,  anterius  obsolete  canalicu- 
latum,    punctatum,   nigrum,    squamulosum.     AntenuiB    longiusculjje,    fer- 


LeConte.]  APPENDIX.  429 

ruginese,  parce  pilosse.  Thorax  parvus,  angustus,  latitudine  fere  longior, 
basi  apiceque  truncatus,  intra  apicem  late  et  profunde  transversim  im- 
pressus,  margine  alte  elevato  ;  lateribus  parum  ampliatus,  supra  convexus, 
pulvinntus,  conferlim  punctatus,  niger,  sat  dense  cinereo-squamulosus  et 
fusco-pubescens.  Scutellum  parvum,  rotundatum,  nigrum.  Elytra  antice 
truncata,  thoracis  basi  duplo  latiora,  humeris  elevatis,  fere  rectangulatis  ; 
lateribus  non  ampliata,  posterius  attenuata,  apice  conjunctim  acuminata, 
thorace  quintuplo  longiora,  supra  in  dorso  antico  parum  convexa,  punc- 
tato-striata,  interstitiis  planis,  subtiliter  alutaceis  ;  nigra,  fusco-pubescen- 
tia,  squamulis  cinereo-albidis,  insequaliter  vestita,  relic^is  nempe  in  dorso 
plagis  variis  diflforraibus,  nudis,  nigris.  Corpus  subtus  punctatum,  nigrum, 
densus  cinereo-squamulosum.  Pedes  mediocres,  ferruginei,  femoribus  cla- 
vatis,  muticis,  extrorsum  nigro-piceis." 

Dr.  Horn  thinks  that  it  may  be  Ci/phomimus  dorsalis.  If  it  be  not  re- 
ferable to  that  species  it  is  unknown  to  us,  and  renewed  examination  of 
the  type  will  be  necessary  to  confirm  the  correctness  of  the  generic  position. 

4.  Barynotus  granulatus  Say,  Cure.  12  ;  Lee  ,  ed.  i,  273. 
Brown,  thorax  obtusely  granulated,  with  a  pale  vitta. 

Inhabits  Indiana.  Body  dull  brown,  with  short  raised  hairs  ;  head  im- 
pressed  between  the  eyes.  Thorax  with  very  obtuse  granulations,  a  longi- 
tudinal, slender,  impressed  dorsal  line  in  a  dull  yellowish  vitta.  Elytra 
a  little  elevated  on  the  basal  edge  ;  striae  concave,  much  dilated,  punctured  ; 
punctures  wide,  not  very  deeply  impressed,  interstitial  lines  not  so  wide  as 
the  striae,  with  hairs  ;  suture  a  little  pale.  Length  about  one-fourth  of  an 
inch. 

The  surface  of  the  thorax  exhibits  the  appearance  of  obtuse  little  elevated 
granulations,  and  the  profile  view  shows  irregular  punctures  or  interrupted 
rugae. 

5.  Byrsopages  carinatusMotsch.,  Schrenk's  Reisen,  Amur.  Ins.  168. 
Closely  allied  to  B.  vcntricosus  Motsch.,  ibid.,  and  distinguished  only  by 

the  gray  fasciculated  pubescence  which  clothes  the  elytra,  causing  them  to 
appear  spotted  ;  by  very  slightly  elevated  ridges,  which  seem  to  replace  the 
striee  of  the  elytra,  and  by  the  head  more  strongly  punctured  ;  the  latter  is 
reddish,  as  are  also  the  antenna3  and  legs  ;  the  teeth  and  the  spines  at  the 
tip  of  the  tibae  are  longer  and  more  distinct ;  the  under  surface  of  the  body 
redder  and  less  glabrous ;  punctuation  not  dense  but  very  obvious,  and 
pubescence  more  developed.     Length  4  lines. 

I  have  condensed  this  translation  from  the  remarks  in  the  work  cited. 
The  genus  is  unknown  to  me  and  is  placed  by  Lacordaire  near  Homalorlii- 
wts. 

6.  Leposoma  californica  Motsch.,  Bull.  Mosc.  1845,  ii,  105. 
Elongato-ovata,  convexa,  punctatissima,  pilosa,  brunnea,  fusco  cinereo 

squamosa ;  antennis  tarsisque  testaceo  rufis  ;  elytrispunctato-striatis.  Long. 
2^  lin  ;  lat.  1  lin. 

California.  Neither  the  generic  nor  specific  description  permits  its 
identification. 


430  APPENDIX.  [LeConte. 

7.  Phytonomus  trivittatus  Say,  Cure.  12  ;  ed.  Leo.,  i,  273. 
Blackish  brown,  with  numerous  scale-like  hairs. 

Inhabits  North-west  Territory.  Bady  blackish  brown,  with  numerous 
robust  hairs  almost  resembling  scales,  which  are  longer  in  three  yellowish 
metallic  thoracic  vittse,  of  which  the  lateral  ones  are  broader  and  terminate 
in  a  spot  on  the  humerus;  the  vittae  and  spot  are  pale  brownish  cinereous  ; 
antennae  rufous  ;  elytra  with  large  costal  spots,  interstital  lines  obsoletely 
alternating  with  blackish  and  pale  brown  cinereous.  Thighs  beneath  near 
the  tip  emarginate  ;  anterior  tibiae  a  little  incurved  at  tip.  Length  one  - 
fiftli  of  an  inch. 

8.  Hylobius  stupidus  Boh.,  Sch.  Cure,    i,  339. 

Oblongus,  niger,  opacus,  antennis  pedibusque  nigropiceis,  capite  crebre 
rugoso,  thorace  subtiliter  rugoso-punctato,  carinato,  elytris  obsolete  punc- 
tato-striatis,  interstitiis  confertim  granulatis. 

Habitat  in  Georgia,  Americes  septentrioualis.  Dom.  Hooker  ;  Mus. 
Schh.  Magnitudo  fere  H.  pi/ieti,  sed  minus  convexus.  Caput  magnum, 
crassum,  supra  convexum,  nigrum  obscurum,  crebre  ruguloso-exasperatum  ; 
oculi  oblongi,  depressi,  obscure  brunnei ;  rostrum  capite  dimidio  longius 
et  angustius,  deflexum,  crassum,  parum  arcuatum  versus  apicem  nonnihil 
arapliatum,  nigrum  opacum,  crebre  rugoso-punctatum,  carinula  media 
obs^oleta  notatuni.  Antennae  capite  cum  rostro  fere  breviores,  paulo  pone 
medium  rostri  insertae,  crassae,  nigro-picese,  griseo-pilosae,  clava  ovata. 
acuminata.  Thorax  latitudine  media  multo  longior,  apice  truncatus,  an- 
terius  nonnihil  angastior,  coarctatus,  lateribus  in  medio  nonnihil  rotundato- 
ampliatus,  basi  leviter  sub-bisinuatus,  supra  parum  convexus  ;  totus  niger 
opacus,  crebre  sed  nouprofunde  rugulosus,  pilis  rigidis  depressis  flavescenti- 
bus,  parce  adspersus,  in  medio  dorsi  carinula  abbreviata,  sat  distincta. 
Scutellum  subtriangulare  nigrum  opacum.  Elytra  basi  subtruncata  aiitice 
thoracis  basi  paulo  latiora,  et  illo  triple  longiora,  humeris  antrorsum  promi- 
nulis,  obtuse  angulatis,  lateribus  inflexa,  pone  humeros  nonnihil  ampliata, 
dein  apicem  versus  sensim  angustata,  apice  ipso  conjuuctim  obtuse  rotun- 
data,  ante  apicem  callo  vel  gibbere  notata ;  supra  modice  convexa,  nigra 
opaca,  striis  parum  profundis,  angustis,  obsolete  punctatis,  pulvere  cinereo 
repletis  exarata,  interstitiis  latis  planis,  coufertissime  subtiliter  granulatis, 
setulis  brevissimis  pallidis  depressis  parce  adspersa.  Corpus  subtus  nigrum 
obscurum,  setulis  flavescentibus  discretis  adspersum,  pectore  fortius,  ventre 
tenue  punctulatis.  Pedas  longiusculi,  validi,  nigro-picei,  flavescenti  pilosi  ; 
femoribus  incrassatis,  remote  punctatis,  omnibus  dente  crassovalido  acumi- 
natoarmatis  ;  tibiissubcompressis,  rude  rugoso-punctatis,  intus  ante  medium 
ampliatis,  subdentatis  apice  uncinatis  ;  tarsis  elongatis  dilutius  piceis,  sub- 
tus fulvo-spongiosis. 

9.  Hylobius  assimilis  Boh.,  Sch.  Cure,  ii,  345. 

Oblongus,  niger,  capite  profande  remote  punctato,  rostro  obsolete  cari- 
nato, thorace  angustiore,  antice  valde  coarctato,  punctato-rugoso,  linea 
media  Isevi,  elytris  dorso  fere  planis,  punctis  oblongis  striatis,  interstitiis 
undique  granulato-rugosia. 

Habitat  in  America  boreali,  a  Com.  Dejean  missus,  Mus,  Schh. 


LeConte.J  APPENDIX.  431 

Statura  fere  H.  palis,  sed  nonnihil  inajor,  capite  remote  punctato,  thorace 
angustiore,  ut  et  defectu  signaturis  elytrorum,  ab  illo  mox  distinctus. 
Caput  breve,  rotimdatum,  nigrum,  sat  profunde  minus  crebre  punctatum  ; 
froute  foveola  obsoleta  impressa  ;  oculi  laterales  oblongi,  transversi,  de- 
press!, brunnei ;  rostrum  longitudine  thoracis,  crassiusculum,  teres,  parum 
arcuatum;  nigrum  subuitidum,  a  basi  ultra  medium  obsolete  carinatum, 
inter  antennas  canalicula  abbreviata  insculptum,  totum  profunde,  minus 
crebre  rugoso-punctatum.  Antennae  longe  pone  medium  rostri  insertse, 
thorace  paulo  longiores,  crassiusculfe  nigro-piceae,  clava  ovata  subobtusa 
cinereo-pubescente.  Thorax  latitudine  multo  longiore,  antice  valde  an- 
gustatus,  coarctatus,  lateribus  paululum  rotundatus,  basi  sub-bisinuatus, 
supra  minus  convexus,  nigcr  profunde  rugosopunctatus,  in  medio  obsolete 
carinatus.  Scutellum  parvum,  rotundatum,  nigrum  pallido-pubescens. 
Elytra  antice  thoracis  basi  paulo  latiora,  et  quadruplo  longiora,  humeris 
subprominulis,  rotundatis,  lateribus  inflexa,  ultra  medium  linearia,  turn 
apicem  versus  angustata,  apice  conjunctim  obtuse  rotundata,  supra  parum 
convexa  dorso  fere  plana  ;  tota  nigra  subopaca,  striis  minus  latis,  crebre 
canceliatis,  exarata,  quarum  foveolse  oblongo-quadratae,  sat  profundae. 

10.  Lixus  praepotens  Boh.,  Sch.  Cure,  ill,  63.  Ehynchophorus  prmp. 
Say,  Cure.  21  ;  ed.  Lee,  i,  287. 

Thorax  with  three  vittae. 

Inhabits  Arkansas.  Body  black,  covered  with  dense  prostrate  cinereous 
hairs.  Rostrum  shorter  than  the  head  and  thorax  ;  thorax  with  three 
black  vittae,  extended  behind  at  the  scutel.  Elytra  with  double  series  of 
punctures  ;  a  black  vitta  on  the  middle  of  each,  and  a  narrower  subsutural 
one.     Length  more  than  three-fifths  of  an  inch.     This  is  a  fine  insect. 

11.  Lixus  poricollis  Mann.,  Bull.  Mosc.  1843,  ii,  291. 

Oblongus,  niger,  pubi  grisea  dense  obtectus,  rostro  breviore  recto  carinato, 
thorace  antice  parum  angustiore,  dorso  punctis  nigris  remotis  variolosis 
impresso,  basis  foveolato,  longitudinaliter  anguste  carinato,  utrinque  nigro- 
lineato,  elytris  subtiliter  punctato-striatis,  apice  singulatum  subacuminatis, 
fusco  trilineatis,  femoribus  muticis.  Longitude  cum  rostro  4-5  lin. ;  lati- 
tude 1|-1^  lin. 

California ;  Mus.  Mosq.  Ad  Stirpis  2dae  manip.  Imum  op.  eel.  Schon- 
herr,  adnumerandus. 

12.  Lixus  modestus  Maun.,  ibid. 

Elengatus  niger,  griseo-pubescens,  rostro  crassiuscule,  modice  arcuato, 
thoracs  conico  breviore,  dorso  longitudinaliter  excavate,  elytris  striate- 
punctatis,  dense  cinereo-squamulosis,  maculis  minutis  albescentibus  re- 
mote aspersis,  apice  singulatim  subacuminatis,  femoribus  muticis.  Longi- 
tude cum  rostro  5  lin.;  lat.  1  1-3  lin. 

California  ;  Mus.  Mosq.  Stirpis  2dae  manipulo  Imo  eperis  eel.  Schon- 
herr  cellecandus. 

13.  Lixus  marginatus  Say,  Cure.  13;  ed  Lee,  i,  275;  Boh.,  Sch 
Cure,  iii,  70. 


432  APPENDIX. 


[LeConte. 


Black,  covered  with  minute  cinereous  hairs,  thorax  impressed.  Elj'tra, 
region  of  the  scutel  and  middle  of  the  base  indented. 

Inhabits  United  States.  Body  black,  covered  with  short  minute  robust 
recurved  hairs,  puncaired.  Antennte  rufous,  club  dusky.  Thorax  a 
little  convex  each  side,  behind  the  middle  of  the  side  rectilinear;  a  little 
contracted  before  with  an  indented  line  above,  more  profound  near  the 
base,  with  dilated,  confluent,  slightly  impressed  punctures,  not  deeply 
sinuated  at  base,  with  regular  series  of  punctures.  Elytra,  region  of  the 
scatel  indented  ;  abdomsn  dull  fulvous  behind.  Length  nearly  seven- 
twentieths  of  an  inch. 

[Thissp3cies  is  said  to  occur  on  the  lower  Mississippi  and  in  the  Atlantic 
States.  I  have  not  identified  it,  nor  was  it  known  to  Gyllenhal,  who 
merely  cites  Say.  ] 

14.  Tyohius  aratus  Say,  Cure.  26  ;  ed.  Lee,  i,  294. 

Body  entirely  covered  with  pale  olivaceous,  dense,  elongated  or  rounded 
scales  ;  rostrum  as  long  as  the  head  and  thorax,  linear  ;  scales  like  robust 
hairs ;  transversely  indented  over  the  insertion  of  the  antennae  ;  a  longi- 
tudinal impressed  line  ;  tip  naked  rufous  ;  thorax  with  the  hair-like  scales 
converging  backwards  to  the  dorsal  line.  Elytra  with  indented  striae, 
punctures  are  not  visible,  with  densely  imbricated,  rounded  scales  ;  mid- 
dle of  the  interstitial  lines  with  a  series  of  prostrate  scale-like  hairs  ; 
thighs  unarmed,  emarginate. 

Inhabits  Missouri.  Length  three-twentieths  of  an  inch.  Can  this  be 
C.  penicellus,  Herbst? 

15.  Conotrachelus  confinis  Fahrteus,  Sch.  Cure  iv,  430. 

Ovalis,  niger,  pube  grisea  parce  adspersus  ;  rostro  basi  superne,  anten- 
nis,  femoribus  posterioribus  medio,  tibiis,  tarsisque  rufo-testaceis  ;  thorace 
ampliato,  rugoso-punctato,  linea  utrinque  flexuoa  d?nsius  griseo-tomentosa  ; 
elytris  pone  medium  late  grisso-flxsciatis  ;  interstiliis  alternis  modice 
elevato-costatis,  costa  iniima  pone  medium  interrupta ;  femoribus  a3qual- 
iter  bidentatis. 

Pennsylvania.  The  long  description  adds  little  to  the  diagnosis,  which 
indicates  a  species  allied  to  and  perhaps  identical  with  C.  elejans,  p.  228. 

16.  Rhytidisomus  orobinus  Schiodte,  Berl.  Ent.  Zeitschr.  1859,  141. 
Nigro-picaus,   unicolor,  antennis  pedibusque  rufis,  elytris  callo  humerali 

protuberante,  interstiliis  sulcorum  dorsalium  angustis,  acute  elevatis,  im- 
^bricato-dentatis,  lateralium  latis,  convexiusculis,  subltevibus,  singulis  serie 
punctorum  simplici  impressis.     Long,  f  lin." 

Greenland.  I  infer  from  the  remarks  appended  to  the  diagnosis,  that  this 
species  differs  from  the  European  E.  globulus  by  the  smaller  size,  as  well 
as  by  the  characters  above  given. 

17.  Rhynchsenus  umbellae  Fabr.,  Syst.  El.  ii,  450. 
Nigricans,  elytris  striatis,  scutello  albo. 

Habitat  in  Carolina,  Mus.  Dom.  Bosc.  Statura  B.  pcricarpii  at  major  et 
alius.   Caput    nigrum.     Thorax    Isevis,    nigricans,   immaculatus.    Elytra 


LeConte.J 


APPENDIX.  433 


parum  pallidiora,  striata  ;  striisante  apieem  coeuntibus.  Scutellum  album, 
at  sutura  elytrorum  oiimiiio  concolor.     Corpus  cinereum  pedibus  uigris. 

The  description  is  wortliless,  as  is  indicated  by  tlie  expression  tliorax 
Isevis.  The  specimen  upon  wliicli  it  was  based,  should  probably  be  re- 
ferred to  BMnoncus  pericarinus,  p.  284. 

18.  Baridius  californicus  Motsch.,  Bull.  Mosc.  1845,  ii,  372. 
Oblongus,  subdepressus,  niger,  punctatus,    parce  pilosus  ;  rostro  longitu- 

dine  thoracis,  tenue,  subarcuato  ;  thorace  quadrate,  antice  angustato  ;  ely- 
tris  postice  subatteuuatis,  striatis,  striis  in  fuudo  punctatis  ;  interstitiis 
subtiliter  punctato-striatis.     Long.  1|  lin. ;  lat.  1  lin. 

II  est  plus  petit  que  le  B.  picinmt,  dont  il  se  distingue  facilement  par  les 
elytres  faiblement  pubescentes.     De  Californie. 

19.  Baridius  californicus  Boh.,  Eugenics  Resa.  Ins.  137. 

Ovatus,  modice  convexus,  nigro  piceus,  nitidus  glaber  ;  antennis  pedi- 
busque  rufo-ferrugiueis  ;  rostro  ferrugeneo  modice  arcuato,  prothorace  vix 
longiore,  hoc  brevi,  sat  crebre  punctulato,  pone  apicera  valde  rotundato- 
ampliato  ;  elytris  castaneis,  .nediocriter  punctato-striatis,  punctis  striarum 
minus  crebris,  interstitiis  planis,  U^vibus.     Long,  1|  ;  lat.  1|.  mill. 

California,  San  Francisco.  The  detailed  description  gives  no  ftirther  char- 
acters for  the  recognition  of  this  species. 

20.  Centrinus  pistor  Gyll.,  Sch.,  Cure,  iii,  170.  Ins.  Nov.  295,  {Bal- 
aninus). 

Femoribus  muticis,  niger,  griseo-tomentosus,  thorace  supra  scutellum 
producto,  acuto,  elytris  triangularibus,  striatis.  Habitat  in  America  sep- 
tentrionali,  (Kentucky). 

B.  cerasorum  paullo  major.  Rostrum  dimidii  corporis  longitudine, 
tenue,  incurvum,  Iteve,  denudatum,  atrum,  antennae  rostri  medio  inserta", 
piceo-nigrse,  funiculi  articulis  1-2  elongatis,  reliquis  suba?qualibus,  cylin- 
dricis.  Thorax  latitudine  postica  parum  brevior,  lateribus  a  basi  ultra 
medium  sensim,  tunc  apieem  versus  subito  angustatis,  basi  subtruncatus, 
supra  scutellum  triangulariter  productus,  acutus,  griseo  aut  fulvo,  dense  to- 
raentosus.  Scutellum  rotundum  tomentosum.  Coleoptera  triangularia,  abdo- 
mine  brevioria,  striata,  fulvo  aut  griseo-tomentosa.  Pectus  et  abdomen 
albo-squamosa.  Pedes  nigri,  griscio-tomentosi,  femoribus  parum  clavatis, 
muticis. 

The  reference  to  Centrinus  seems  to  me  doubtful,  in  view  of  the  exjires- 
sion  Colcopfera  abdomine  brcviora.  I  have  seen  nothing  that  could  be 
properly  referred  to  this  description. 

21.  Centrinus  ?  dilectus  Harris,  Trans.  Hartford  Soc.  Nat.  History 
80,  pi.  1,  fig.  4. 

Punctured,  and  with  brassy  scales  ;  scutel  whitish,  third  joint  of  the  an- 
tennae twice  as  long  as  the  fourth.  Length,  exclusive  of  the  rostrum 
twenty-hundreths  of  an  inch. 

Halsey's  collection,  No.  165.  Body  piceous  black,  densely  punctured, 
and  with  elongated  brassy -j^ellow  scales.  Head  retracted  to  the  eyes  with- 
in the  thorax,  indented  at  the  base  of  the  rostrum.     Rostrum  as  long  as 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  3C 


434  APPEI^DIX.  [LeConte. 

the  head  and  thorax,  slender,  ahnost  filiform,  arcuated,  slightly  dilated 
over  the  origin  of  the  antennae,  piceous,  minutely  and  remotely  punctured. 
Antennae  inserted  behind  the  middle  of  the  rostrum,  piceous,  club  rufous  ; 
third  joint  (second  of  the  funiculus),  two-thirds  the  length  of  the  preced- 
ing, and  twice  the  length  of  the  following  joint,  Thorax  in  the  middle, 
longitudinally  elevated,  or  almost  carinated,  covered  with  linear-lanceo- 
late scales,  which  converge  from  the  sides  towards  the  central  carina.  Ely- 
tra with  acute,  remotely  punctured  stria-,  and  flat  interstitial  lines,  each  one 
of  which  is  covered  with  large  superticial  confluent  punctures,  and  three  or 
four  series  of  linear-lanceolate  scales  ;  an  oblique  elevation  or  callus  before 
the  tip  of  each  elytron.  Body  beneath  more  densely  covered  with  whiter, 
shorter  oval  scales.  Breast,  before  the  anterior  legs,  widely  indented,  not 
canaliculate,  unarmed. 

22.  Balaninus  porrectus  Boh.,  Sch.  Cure,  vii,  2d,  292. 

Ovatus,  niger,  squamositate  griseo-olivacea  dense  tectus  ;  rostro  tenui, 
longitudine  elytrorum,  subrectc  ;  thorace  angustiore.  confertim  punctulato, 
intra  apicem  constricto  ;  elytris  tenuiter  punctato-striatis,  interstitiis  planis 
subtiliter  coriaceis  ;  femoribus  anticis  obsolete  dentatis,  posterioribus 
muticis. 

Missouri,  Americae  borealis,  Dom.  Say,  Mus.  Sch. 

Biilanino  cerasorum  vix  latior,  sed  nonnihil  longior.  Caput  parvum, 
subglobosum,  subtilissime  punctulatum,  nigrum  nitidum,  glabrum  ;  oculi 
subrotundati,  depressi,  nigri ;  rostrum  longitudine  elytrorum,  tenue,  cylin- 
dricum,  subrectum,  piceo-nigrum  vix  punctatumbasi  griseoolivaceo-squa- 
mosum.  Antennae  thoracis  medium  attingentes,  piceae,  parce  pilosae  ;  clava 
parva,  ovata,  subobtusa.  Thorax  latitudine  postica  fere  longior,  apice  trun- 
catus,  anterius  nonnihil  angustior,  intra  apicem  constrictus,  lateribus  paulo 
rotundato-ampliatus,  basi  bisinuatis,  supra  convexus,  subtiliter  crebre  punc- 
tulatus,  niger,  squamis  depressis  griseo-olivaceis  dense  vestitus.  Scutellum 
parvum,  subtriangulare,  nigrum,  dense  griseo-squamulosum.  Elytra  an- 
tice  subtruncata,  thoracis  basi. nonnihil  latiora,  humeris  vix  elevatis,  obtuse 
rotuudatis ;  lateribus  non  ampliata,  apicem  versus  angustala,  apice  con- 
junctim  obtuse  rotundata,  thorace  duplo  longiora,  supra  parum  convexa. 
tenuiter  punctato-striata.,  interstitiis  planis,  subtilissime  coriaceis  ;  nigra, 
squamulis  depressis,  griseo-olivaceis,  dense  vestita.  Corpus  subtus  subtiliter 
crebre  punctulatum,  nigrum,  squamulis  tenuioribus,  cinereo-albidis  undique 
sequalirer  obsitum.  Pedes  validiusculi,  rufo-picei,  cinero-squamulosi ; 
femoribus  clavatis,  anticis  obsolete  dentatis,  posterioril)us  muticis,  tibiis 
tere-tibus,  rectis. 

The  reference  to  this  genus  seems  to  me  doubtful,  especially  as  the 
species  is  immediately  followed  by  B.  consiricUis,  which  has  no  resemb- 
lance to  Balaninus,  but  is  an  Erivldnine  (p.  168).  It  is  quite  possible,  that 
this  insect,  on  renewed  study  of  the  type  in  Stockholm,  may  prove  the 
same  as  my  Desmoris  scapalis,  which  is  congeneric  with  D.  constrictus. 

23.  Brenthus  peregrinus  Herbst,  vii,  190,  pi.  108,  f.  1. 

This  is  evidently  a  species  from  Tropical  America,  either  with  an  in  cor- 


LeConte.l  APPENDIX.  "  435 

rect  locality,  or  accidentally  introduced.  It  is  therefore,  unnecessary  to 
reprint  the  description.  In  the  Munich  Catalogue,  2713,  it  is  cited  as  a 
synonym  of  B.  anrhorago.  $ 

24.  Cossonus  californicus  Motsch.,  Bull.  Mosc.  1845,  i,  p,  99,  No. 
228. 

"Niger,  glaber,  subdepressus ;  rostro  breviori,  crassiori,  apice  modice 
dilatato,  basi  obsolete  foveolato  ;  antennarum  articolo breviori  (sic);  tliorace 
oblongo,  profunde  punctato,  medio  distincte  longitudinaliter  biimpresso, 
elytris  profunde  punctato-striatis.     Long.  3  lin. ;  larg.  §  lin." 

He  says  that  it  resembles  C.  pinipMlus,  but  is  much  smaller  and  easily 
recognized  by  the  stouter  and  shorter  antennae,  and  by  the  two  longitudi- 
nal impressions  at  the  middle  of  the  thorax. 

25.  Pityophthorus  cribripennis  Eichhoflf,  Berl.  Ent.  Zeitschr.  1868, 
274. 

Elongatus,  cylindricus,  thorace  oblongo,  lateribus  subrectis,  postice 
minus  profunde  punctato,  linea  media  Itevi  ;  elytris  ad  suturam  indigeste 
(extra  striate-)  punctatis,  declivitate  postica  ad  suturam  utrinque  sulcata, 
sutura  subelevata,  margineque  laterali  subtilissime  granulatis,  angulo  api- 
cali  acutiusculo.     Long.  1  lin.     Patria  ;  America  septentr. 

26.  Pityophthorus  bisulcatus  Eichhoff,  ibid.  1868,  274. 
Elongatus,   cjiindricus,    thorace    oblongo-ovali  lateribus  subrotundatis, 

postice  vage  subtiliter  punctato,  linea  media  la;vi ;  elytris  subtilius  striato- 
punctatis,  punctis,  dilatatis,  interstitiis  inde  angustioribus  subrugulosisque  ; 
declivitate  postica  ad  suturam  utrinque  sulcata,  sutura  valde  elevata  mar- 
gineque subcalloso  subtiliter  granulatis,  angulo  apicali  acutiusculo.  Long. 
^  lin.  Patria  :  America  borealis. 

27.  Pityophthorus  pulchellus  EichhoflF,  ibid.  1868,  275. 
Oblongo-elongatus,  thorace  breviter-ovali,  postice  fortiter  ruguloso-punc- 

tato,  linea  media  Isevi  ;  elytris  striato-punctatis  interstitiis  subrugulosis ; 
decliviate  postice  ad  suturam  utrinque  sulcata,  sutura  subelevata  margine- 
que laterali  subtiliter  granulatis,  angulo  apicali  acutiusculo.  Long.  :|  lin. 
Patria  :  America  septentr. 

28.  Tomicus  oregonis  Eichhoflf,  Berl.  Ent.  Zeitschr.  1868,  274. 
Oblongus  cylindricus  nitidus,   thorace  subquadrato,  postice  profuudius 

punctato  ;  elytris  subtiliter  striato-punctatis,  interstitiis  internis  basi  Isevi- 
bus ;  elytris  apice  oblique  truncatis,  truncatura  excavata  circulari,  spatio 
nitido  punctato,  margine  apicali  prolatato,  laterali  utrinque  4-dentato,  deute 
tertio  coarctato  majore,  secundo  valido  acuto.  Long,  2  lin  :  Amer.  bor. 
(Oregon). 

29.  Tomicus  perturbatus  Eichh.  1.  e.  274. 

Oblongus,  cylindricus,  subnitidus,  thorace  breviter  ovato,  postice  fortiter 
punctato  ;  elytris  subcrenato-striatis,  stria  suturali  profuudiore  pone 
medium  fortiter  ruguloso-punctata,  interstitiis  convexiusculis  lasvibus, 
apice  oblique  truncatis  truncatura  excavata  spatio  punctato  nitido,  margine 
laterali  utrinque  4-dentato,  dente  tertio  majore,  a  primo  minimo  remoto  ; 
margine  apicali  longe  elevato.     Long.  2j  lin.  Amer.  bor. 


436  APPENDIX. 


[LeConte. 


30.  Phloeosinus  Haagi  Chapuis,  Mem.  Soc.  Roy.  Sc.  Liege,  1869, 
94.     Dendroetonus  Haagi  Eicbhoflf,  Berl.  Ent.  Zeitsclir.  18G8,  148. 

Breviter  ovatus,  subopacus,  piceus,  nonnunquam  autennis  tarsis  et  ely- 
tris  bninneis,  pube  brevi  flava  vestitus  ;  capite  crebre  ruguloso-punctato, 
inter  oeulos  spatio  nitido,  apice  carinato  ;  protborace  latitudine  basis  bre- 
viori,  a  basi  ad  apicem  angustato,  sat  dense  fortitei'  punctato,  linea  media 
angiista  elevata,  a  basi  ultra  medium  producta  ;  elytris  anguste  striato- 
punctatis,  striis  vix  punctatis,  interstitiis  rudibus,  sat  dense  minute  granu- 
latis,  in  declivitate  seriatim  tuberculatis,  Imo.  et  3io  subconvexioribus. 
Long.  2h  mill. :  Am.  bor. 

31.  Phloeosinus  graniger  Chapuis,  ibid.  95. 

Bi'eviler  ovatus,  subopacus  piceus,  elytris  et  pedibus  brunneis,  antennis 
flavis,  pube  brevi  flava  dense  vestitus  ;  capite  crebre  punctulato,  apice 
carinulato  ;  protborace  latitudine  basali.breviori,  a  basi  ad  apicem  angusta- 
to, dense  et  fortiter  punctato,  linea  media  a  basi  ultra  medium  elevata,  sub- 
Isevi  ;  elytris  striato-punctatis,  inteistitiis  dense  granulato-rugulosis,  in  de- 
clivitate seriatim  tuberculatis,  Imo.  etSio  convexioribus,  tuberculis  majori- 
bus  ornalis.    Long.  2  mill.     Texas. 


LeConte.j 


APPEN^DIX.  437 


APPENDIX  III, 
Corrections  to  the  Munich  Catalogue, 

2187.  Liophloeus  inquinatus  Mann,  is  Lophalophus. 
2219.  Tanymecus  leucophseus  Cyll.  is  T.  lacaena  (^  p.  84. 
2271.  Tyloderes  g-emmatus  Lee.  is  Phymatinus. 
2282.  Peritelus  sellatus  Boli.  is  Paraptochus. 

2286.  Ptochus  adspersus  Boh.  is  Neoptochus. 
Ptochus  globiventris  Lee.  is  Peritelopsis. 

2287.  Ptochus  saccatus  Lee.  is  Mylaeus. 

2288.  Trachyphlceus  melanothrix  Kirby  is  Geoclerces. 

2289.  TrachyphlcBus  squalens  Lee.  is  Thinoxenus. 
2315.  Ophryastes  tessellatus  (Say)  is  Aramigus. 

2359.  Listroderes.     Some    of    these    are    Listronotus,    and    otliers 
are  3Iacrops. 
2424.  Ourculio  tseniatus  Lcc.  is  Plinthodes. 
Curculio  torpidus  Lee.  is  Noeheles. 

2435.  G-rypidius  vittatus  Couper,  is  Sitones  tibialis. 

2436.  Erirhinus  ephippiatus  Say  is  Alyca. 
2482.  Attelabus  scutellaris  Say  is  Piazorhinus. 
2496.  Balaninus  constrictus  Say  is  Desmoris. 

2503.  Anthonomus  tessellatus  Walsli  is  Doi-ytomus. 

2541.  Conotrachelus  cristatus  Fahraeus,  iv,  438  ;  a  "West  Indian 
species  not  Ivnown  to  occur  in  the  United  States. 

2610.  Oeutorhynchus  umbellae  Fabr.  \s  perimrpius. 

5621.  Baris.  The  species  in  my  synopsis,  Pr.  Acad.  Nat.  Sc.  Phila., 
1868, 361,  are  not  cited. 

2650.  Sphenophorus  praepotens  Say,  is  Lixus,  as  is  indicated  by 
the  pubescence  of  tlie  surftxce,  (v,  p.  431). 

2672  &  3.  Haagi  and  granig-er  Eich.,  appear  under  two  genera, 
Dendroetonus  and  Phlceosinus. 

2673.  Hylesinus  aculeatus  Say,  is  incorrectly  referred  to  Dendro- 
sinus  and  D.  globosus  is  placed  as  a  synonym. 

2681.  Aphanarthrum  pumilum  is  Dolurgus. 

2695.  Scolytus  muticus  Say,  dele^the  reference  to  Chapuis. 

2749.  Araeocerus  fasciculatus.  Anthribus  moestus  Lee,  is  not 
a  synonym  of  this  species,  but  belongs  to  Piezocorynus. 


438 


APPENDIX. 


[LeConte. 


APPENDIX    IV. 

The  following  bibliography  of  the  memoirs  relating  to  Economic  Ento- 
mology of  the  Rhynchophora  of  the  United  States,  has  been  prepared  at 
my  request  by  Mr.  B.  Pickman  Mann,  of  Cambridge,  Mass. 

It  will  be  an  invaluable  addition  to  this  volume,  for  all  who  desire  to 
study  the  habits  of  these  insects :  a  prerequisite  to  any  rational  enquiry 
into  the  means  to  be  adopted  for  the  suppression  of  the  noxious  species. 
Such  a  study  has  been  heretofore  almost  impracticable  in  this  country,  in 
consequence  of  the  large  number  of  undescribed  species,  and  the  scattering 
of  the  descriptions  of  those  which  have  been  named  in  a  multitude  of  vol- 
umes, many  of  which  can  only  be  obtained  with  much  labor  and  great  cost. 
For  the  proper  use  of  the  tables,  certain  explanations  are  necessary. 

I.  The  subjects  mentioned  in  the  articles  cited  are  indicated  as  follows  : 
b.  benefits.  d.  description.  /.  food, 

h.  habits.  i.  injuries.  I.  localities. 

r.  remedies.  s.  seasons.  t.  transformations. 

II.  The  *  after  a  reference  indicates  that  the  article  is  illustrated  with  a 
figure  of  the  insect  in  question. 


Name, 


abietis.    Hyloblus 
anipelopsldis.    Madams 
analis.    Attelabns 
bicolor,    Rhynchites 
bipustulatus.    Atteiabus 

calligraphus.    Tomicus 
carbonarius.    Hylastes 
caryse,    Scolytus 
cerasi.    Rhynchsenus 


coffese.    Arseocerus 
cratsegl.    Conotrachelus 


dentatus.    Hylurgus 

destructor.    Hylesinus 

"  Scolytus 

exesus.    Tomicus 
fragari<ie.    Analcis 
granarius.    Curculio 

"  Sitophilus 

hilaris.    Curculio 
Hylurgus  spp. 
imbricatus.    Epicserus 

insequalis.    Coeliodes 


limlnaris.    Tom.icus 

mali.    Toinicus 
materiarius.    Tomicus 
minuta.    Eupsalis 
monographus.    Toinicus 
nasicus.    Balaninus 


w 

M 
o 

4 
o 

Page. 

'^ 

> 

11 

5 

171 

3 

2 

105 

14 

6,5-66* 

14 

66 

14 

66* 

22 

4 

143-145 

16 

17 

721-722 

16 

17 

730 

17 

6 

ia3-108* 

11 

2 

282 

11 

5 

171 

11 

7 

81-82 

14 

78 

22 

5 

156 

10 

2 

81 

10 

2 

120 

17 

3 

35-39* 

14 

87 

16 

17 

750 

11 

5 

169-171 ) 
169-171/ 

11 

5 

14 

87-88 

17 

3 

42-14* 

11 

4 

228 

11 

7 

62-63 

3 

1 

179 

14 

83 

14 

70* 

11 

5 

171 

10 

2 

81 

17 

3 

58* 

3 

2 

52 

17 

1 

128-129* 

21 

1 

13-21* 

14 

88 

16 

16 

356-357 

16 

16 

326-327 

16 

17 

726-728 

17 

6 

113-117* 

3 

2 

207 

14 

74-75 

Subject, 


f     i 
df     i 
d    h         s 
df     i       s 
d    h 

dfh  St 

d  f  h  i       s 
d  s 

d  f  h  i  1  r  s  t 
d  f  h  i  1     St 
'Curculio  nenuphar" 

d  f  h  i     r  s  t 
Conotrachelus  nenuphar'' 
il 

f 

f        1 
df hllrst 
dfh  s 

dfhi 

fhi    r 

dfhi 1     s 
d  f  h  i  1  r  s  t 


b     f     i 

dfhi 

df 

df 
f 

df 
f  s 

f      il    St 

df  h  11  r  s 

df  s 

df     i       s 

df     il 

d  fhi 
1 

dfhi  t 

dfh  s 


il 
il 


LeConte.] 


APPEISTDIX. 


439 


M 

Name. 

o 

4 
o 

Page. 

Subject. 

nenuphar.    Conotracheius 

3 

3-4 

r 

" 

3 

11-13 

f  hi    r  s 

' 

3 

32 

f     I 

" 

3 

33 

r 

" 

3 

31-36 

il  r 

3 

56 

r 

" 

3 

80 

h          s 

" 

3 

92-93 

f          r 

3 

156 

h 

" 

3 

161 

r 

3 

18:3 

r 

" 

3 

202-218 

r 

" 

3 

217-221 

h 

3 

220-241 

r 

" 

3 

226 

r 

" 

3 

2:^9 

hi     rs 

3 

244 

h 

" 

3 

252 

f 

3 

2 

53 

r 

' 

3 

2 

56 

r 

3 

2 

119-121 

h 

3 

2 

130-137* 

d  fh  i    r  St 

" 

3 

2 

165 

r 

" 

3 

2 

169-170 

r 

3 

2 

225-227 

h       r  s 

" 

3 

2 

268-271 

r 

" 

3 

2 

274 

r 

3 

2 

276 

f 

" 

3 

2 

336 

f    1 

3 

2 

338 

r 

i(                      ti 

10 

1 

6 

general 

' 

10 

2 

29-30 

general 

10 

2 

31 

f          rs 

10 

2 

71 

r 

^^ 

10 

1 

74 

(worthless)  r 

10 

2 

75-81 

(1  f  h  i    r  s 

10 

2 

97 

r 

" 

10 

2 

114-115 

h 

11 

2 

69-70 

fhi    r    t 

" 

11 

6 

405-106 

f  h  i     r  s  t 

" 

11 

7 

291 

f  h       r  s 

" 

11 

8 

17-18 

f  h  i  1  r  s 

" 

11 

8 

382 

r 

11 

9 

1.53 

f          r 

" 

11 

9 

a56 

fh       rs 

" 

11 

9 

393-394 

fhi     r  s 

11 

9 

405 

f      i 

11 

9 

413 

fh       r 

" 

11 

10 

405 

h 

11 

10 

411 

1 

" 

11 

11 

1 

h    (worthless) 

11 

16 

349 

fh       r     t 

" 

11 

16 

389 

1     r 

" 

U 

75-81* 

df h  i     rst 

16 

16 

347 

f      i 

'                       " 

16 

16 

349-352 

fhi    rst 

" 

16 

16 

a59 

f      i 

"                      " 

16 

16 

-  360 

f 

" 

16 

16 

365 

dfh  i 

"                       " 

16 

16 

387 

f 

"                       " 

16 

16 

461 

f     i 

'                        " 

17 

1 

50-62* 

f  h       r  s 

"                       " 

17 

3 

11-29* 

fh    Irs 

"                       " 

21 

1 

64-72 

dfh    Irs 

"                       " 

22 

2 

137-139* 

fh       r 

"                       " 

22 

3 

12,26* 

r 

"           Curculio 

11 

5 

171 

f      i 

noveboracensis.    Ithycerus 

3 

1 

221-222* 

df  h  ilr 

3 

2 

176-177 

fhi       s 

3 

2 

246 

f     i 

10 

2 

81 

f     il 

10 

2 

107 

f     ilr 

16 

16 

331 

dfhi       s 

17 

3 

57^8* 

dfhil 

MO 


APPEI^DIX. 


[LeConte. 


Name. 

O 

4 
o 

;> 

Page. 

Subject. 

oryzse.    Sitophilus 

~7J 

83-84* 

d  f  h  i  1  r  s 

pales.    Hylobius 

i^i 

70-72* 

d  f  h  i  1     s 

picivorus.    Hylobius 

16 

17 

731 

dfh 

pini.    Curculio 

11 

5 

171 

f  hi  1 

"       Tomicus 

14 

88* 

df     il     s 

"                      n 

16 

17 

722-723 

dfhi 

"                " 

IG 

17 

751 

f  h  i 

pinifex.    Hylastes 

16 

17 

729-730 

d    h 

posticatus.    Conotrachelus 

10 

2 

81 

f 

pruiiicida.    Authonomus 

3 

1 

H 

fh       rs 

"                     " 

3 

1 

93 

f 

"                     " 

10 

2 

79-80 

dfh    Irs 

"                     " 

17 

3 

39-42* 

d  f  h  i  1  r  s 

"                     " 

21 

1 

72-78 

dfhil     s 

pubescens.    Attelabus 

16 

16 

475-476 

d  f  h  i        s 

pulchelius.    Sphenophorus 

17 

3 

60* 

dfh          s 

puncticollis.    Conotrachelus 

10 

2 

81 

f     il 

pusillus.    Tomicus 

16 

17 

724-726 

dfhi 

pyri.    tScolytus 

11 

5 

1-2* 

dfhi    r  s  t 

'*              i* 

11 

5 

6 

f     i 

"              " 

11 

5 

17-18 

f     i     r 

*'                      u 

11 

5 

22 

f     i 

**                   *' 

11 

5 

25-26 

f     i 

'*                " 

11 

5 

38 

f 

*•                " 

U 

5 

38-39 

f     i 

**                  " 

11 

5 

41 

f     i    r 

'*                " 

11 

6 

50-61 

f     i 

"                " 

11 

5 

113 

f     i 

(4                                    (( 

11 

5 

171 

f     i     r 

"                                     " 

11 

8 

401 

dfhi    rs 

*'                                     ** 

11 

9 

6 

f     i 

"                                     " 

11 

9 

21-22 

f     i 

"                                     " 

11 

9 

35 

f     i 

'•                                     " 

11 

9 

137 

f     i     r 

"                                     " 

11 

9 

361 

f     i     r 

"                                     " 

16 

16 

327-528 

f  hi 

"                                     " 

16 

16 

330 

fhi 

"                                      " 

16 

16 

353-354 

d  f     i       s 

"                                      " 

16 

16 

360 

f     i       s 

"       Tomicus' 

14 

88-91 

d  f  h  i  1  r  s  t 

quadrigibbus.    Anthonomus 

3 

1 

36 

f     i 

"                           " 

3 

2 

227 

d 

"                           " 

3 

2 

243* 

d 

<(                           i( 

3 

2 

306 

fh    1 

"                           " 

10 

2 

80-81 

d  fhi Ir 

"                           " 

17 

3 

29-85* 

d  f  h  i  1  r  s  t 

rectus.    Balaninus 

16 

16 

476-477 

dfhi 

robustus.    Balaninus 

10 

2 

81 

f     il 

sayi.    Apion 

14 

67* 

df     i 

Scolytus  spp. 

10 

2 

57-58 

df 

'*          " 

11 

5 

66 

f     i 

"           " 

11 

5 

302-303 

i    r 

septemtrionis.    Brenthus 

14 

67-69* 

dfhil     St 

sesostris.    Baridius 

3 

2 

104-106* 

df     i 

strobi.    Pissodes 

3 

2 

26* 

f     i  Ir  s 

"                 " 

14 

71-73* 

dfhi    r  s 

"                 " 

16 

17 

732-736* 

d  f  h  i  1  r  s  t 

"          Rhyncheenus 

11 

5 

171 

f     i 

"          Rhynchcenus 

10 

1 

20 

d  f     i  1  r  s 

stupidus.    Hylobius 

3 

2 

61 

f 

suturalis.    Anthonomus 

3 

1 

79* 

f     i    r 

"                      " 

12 

487-488 

dfh          s 

sycophanta.    Anthonomus 

3 

2 

46 

dfhi        St 

terebrans.    Hylurgus 

14 

84-86* 

dfhi       St 

"                      " 

16 

17 

728-729 

d  fhi       s 

"               Scolytus 

11 

5 

171 

d 

trinotatus.    Baridius 

3 

1 

22-23* 

dfhil     St 

"                       " 

14 

81-82* 

dfhil     St 

"                      " 

17 

1 

93-95* 

dfhilrst 

typographus.    Bostrichus 

11 

5 

170 

i  1 

vitis.    Madarus 

17 

1 

131-132* 

dfhi       St 

xylographus.    Tomicus 

16 

17 

716-721 

dfhil     s  t^ 

zese.    Sphenophorus 

10 

2 

117-118 

d!fhil 

"                     " 

17 

3 

59*         1 

dfhil 

LeCoute.J 


APrENDIX.  441 


Works  cited  in   the  foregoiiuj  List. 

3.  American  Entomologist,  Vol.  I-II  (all). 

10.  Practical  Entomologist,  Vol.  I-II  (all). 

11.  New  England  Farmer,  Vol.  I-XVII. 

13.  Packard's  Guide  to  the  Study  of  Insects  (1869). 

14.  Harris'  Insects  Injurious  to  Vegetation  (18G2). 

15.  Fitch's  Reports  on  Insects  of  New  York.  Nos.  1,  2,  6-9  {contain 
nothing  on  Bhynchophora). 

16.  Transactions  of  the  New  York  State  Agricultural  Society,  Vol.  XVI 
-XVII  (containing  Fitch's  Reports,  Nos.  4  and  5). 

17.  Riley's  Reports  on  Insects  of  Missouri.    Nos.  1-8  (all  to  date). 

21.  Walsh's  Report  on  Insects  of  Illinois.     No.  1  (all). 

22.  Canadian  Entomologist,  Vol.  I-V. 

It  will  be  seen  that  I  have  not  examined  the  New  England  Farmer,  Vol. 
XVIII  etseqq.;  Fitch's  Reports,  Nos.  3,  [4,  5,]  10,  et  seqq.;  Trans.  N.  Y. 
State  Agric.  Soc,  Vol.  I-XV,  XVIII,  et  seqq. 

The  examination  of  the  New  England  Farmer,  from  the  beginning  of 
Vol.  LIII ;  of  the  Canadian  Entomologist,  from  the  beginning  of  Vol.  VI, 
and  in  general  of  all  entomological  literature  pertaining  to  North  America 
from  the  beginning  of  the  year  1874,  is  taken  up  in  detail  in  Psyche,  the 
organ  of  the  Cambridge  Entomological  Club.* 

References  to  Titles  in  the  Bibliographical  Record  of  Ptsche,  Vol.  I. 

Araeocerus  cofFeae.    No.  147  b. 
Calandra  oryzae.    No.  290  /. 

Conotrachelus  nenuphar.     Nos.  37,  146  ;,  149  n,  161  o,  237  o,  310, 
881  d,  535  b,  539. 
Clonus  scrophularise.  No.  414. 
Curculionidas.  No.  202. 
Eupsalis  minuta.  No.  39. 
Hylobius  pales.  No  168 
Lixus  rubellus.  No.  695 
Magdalinus  5  pp.  No.  646. 
Pissodes  strobi.  No.  168. 
Rhynclisenus  nenuphar.  No,  38. 
Rhynchophora,  Nos.  143  i,  265,  292,  321,  570,  607. 

Additional  Refer etices. 

(Mostly  quoted  without  verification). 

Analcis  fragariae.  Maine  Farmer,  July  25,  1867.     [17  :  3  :  43]. 
Anthonomus  prunicida.  Prairie  Farmer,  June  13,  1863.     [17  :  3  : 
39].     March  19,  1864.     [21  :  1  :  76]. 

♦Published  in  monthly  Nos.  by  the  Cambridge  Entomological  Club,  Cam- 
bridge, Mass. 

PROC.  AMER.  PHILOS.  SOC.  XV.  96.  3d 


442  APPENDIX. 


[LeConte. 


Baridius  5  pp.  Proc.  Acad.  Nat.  Sci.  Pliilad.,  Dec.  1868     [3  :  2  :  105]. 
"  Sesostris.  Missouri  Agricultural  Report  for  1868,  p.  131-132 

(1869).  Gall   (  Vitis  vulw/s)  described  without  name.     [3:2:  104]. 

Baridius  trinotatus.  New  England  Farmer,  ser.  2,  Vol.  II  (1850),  p. 
204. 

Oalandra  granaria.  New  Engl.  Farmer,  Vol.  XIX.  (1841).  p.  300. 

Coeliodes  inaequalis.  Transactions  of  the  Illinois  State  Agricultural 
Society,  Vol.  I.  (1853)  p.  340,  New  York  Tribune,  Oct.  29,  1867.  [21  : 
1  :13]. 

Conotrachelus  nenuphar.  New  Engl.  Farmer,  Vol.  XIX  (1841), 
p.  405* ;  ibid.,  XXII  (1843),  p.  13  ;  ibid.,  ser.  2,  II  (1850),  p.  252  ;  Boston 
Cultivator,  Vol.  XIII  (1851),  No.  24;  Downing's  Horticulturist,  Vol.  VI, 
p.  341  ;  Trans.  Illin.  State  Agric.  Soc,  Vol.  II  (1855),  p.  48.  [21  :  1  :  64]; 
ibid.,  1867,  113-114  [  17  :  1  :  51]  ;  Prairie  Farmer,  July  27,  1867  [17  :  1  : 
51]  ;  ibid.,  July  16,  July  23,  Aug.  27,  1870  [17  :  3  :  30]  ;  Tilton's  Journal 
of  Horticulture,  June  1868  [3:2:  276]  ;  Report  of  the  Alton  (Ills.)  Horti- 
cultural Society  for  July  2,  1868  [3:1:3];  Journal  of  Agriculture,  Oct. 
13,  Nov.  10,  Nov.  17,  1870  [17  :  3  :  30]. 

The  Ourculio,  by  James  Tilton,  M.D.,  Georgick  papers  for  1809,  Mass. 
Soc.  Promot.  Agric,  p.  15-19. 

The  Curculio,  by  James  Allen,  Am.  Quart.  Journ.  Agric,  (1846),  Vol. 
IV.,  p.  127-128. 

Address  on  Curculio,  by  Asa  Fitch,  M.D.,  1860.     [21  :  1  :  65]. 

Essay  on  the  Curculio,  by  E.  S.  Hull,  M.D.     [3:2:  276]. 

A  Treatise  on  the  Insect  Enemies  of  Fruit  and  Fruit  Trees  [etc.].  By 
Isaac  P.  Trimble,  M.D.  New  York,  Wood,  1865,  4  to  pg.  139.  The  Cur- 
culio and  Apple  Moth.     [10  :  1  :  6]. 

Epicaerus  imbricatus.  Prairie  Farmer,  July  18,  1863.     [10  :  1  :  31]. 

Ithycerus  noveboracensis.  Trans.  New  York  State  Agric.  Soc, 
Vol.  XIII  (1854),  p.  188-189. 

Madarus  vitis.  Trans,  Illin.  State  Hortic.  Soc.  for  1867.     [17  :  1  :  131]. 

Rhynchaenus  cerasi.  Massachusetts  Agricultural  Repository  and  Jour. 
Vol  V,  (1819),  p.  307-313,  pi.  1. 

Rhynchaenus  strobi.  ibid.,  Vol.  IV.  (1817),  p.  205-211,  pi.  2. 

Scolytus  caryae.  Prairie  Farmer,  Feb.  2,  1867  [10  :  2  :  58]  ;  Aug.  10, 
1872  [17  :  5  :  105]. 

Scolytus  P37Ti  and  strobi.  Mass.  Agric.  Rep.  and  Journ.,  Vol.  IV, 
(1817),  p.  205-211,  pi.  2. 

Tomicus  eruditus  (Westwood),  Scudder,  Proc.  Bost.  Soc.  Nat.  Hist., 
10,  p.  13-14  (1865).  Mentions  that  a  volume  in  the  Boston  Athenaeum  had 
been  attacked  in  a  manner  similar  to  that  described  by  Professor  Westwood. 
No  specimens  found. 

Tomicus  pyri.  Massachusetts  Ploughman,  Vol.  II  No.  38,  June  17. 
1843  ;  New  Engl.  Farmer,  Vol.  XXII  (1843),  p.  21  ;  Downing's  Horticul- 
turist, Vol.  II,  p.  365-367. 


INDEX. 


Page. 

Acallesbasalis 241 

carinatus 242 

clathratus.      242 

clavatus 243 

crassulus 244 

fasciculatus 254 

granosus 243 

longulus 244 

nobilis 241 

nuchalis 244 

pectoralis 245 

pictus 254 

porosus 242 

scabrosus 243 

sordidus 243 

turbidus 242 

Acallodes  ventricosus 272 

ACAMPTI 238 

Acamptus  rigidus 239 

Achrastenusgriseus 98 

Acmajgenius  hylobinus 118 

Acoptus  suturalis 264 

Agasphferops  nigra 25 

AGRAPHI 58 

Agraphus  bellicus 59 

leucophceus 59 

Agronus  cinerarius 64 

deciduus 64 

Allandrus  bifasciatus 396 

Allomimus  dubius 339 

ALOPHIDM 115 

Alophus  alternahis 119 

constricius 119 

didi/mus 119 

seriatus 119 

Alyca  ephippiata 209 

Amaurorhinus 341 

Amnesia  alternata 52 

decidua 52 

decorata 50 

elongata 53 

granicoUis 50 

rauca 51 

sordida 52 

ursina 51 

Ampeloglypter  ater 300 

crenatus 300 

Sesostris 300 

443 


Page. 

Analcis  cereus 248 

foveolatus 248 

fragarice 248 

morhillosus 247 

variegaius 248 

Ananietis  grisea 43 

Anchodemus  angnstus 181 

Hubbardi 181 

Schvvarzi 182 

Anoniadus  obliquus 20 

ANTHONOMINl 193 

Antlionomus  afflnis 207 

ater 198 

bisignatus 199 

brunnipennis 198 

calceatus 210 

canus 207 

corviilus 201 

cratcegi 205 

decipiens 206 

disjunctus 204 

elegans 202 

elongatus 204 

erytfiropterics 200 

flavicornis 201 

■fulvus 197 

gularis 197 

hirlus 203 

inerinis 203 

juniperinus 199 

mixtus 200 

morulus 201 

musculus 200 

nanus 207 

nebulosus 197 

nigrinus 201 

nubilus 205 

pauperculus 204 

profundus 198 

prunicida 194 

pusillus  . 202 

quadrigibbus 197 

robustulus 205 

rubidus 199 

ruflpennis 200 

ruflpes 204 

scutellaris 194 

scutellatus los 


44i 


INDEX. 


Page. 

Anthonomus  signatus 199 

squamosus 202 

subfasciatus 205 

subvlttatus 203 

sulcifrons 201 

suturalis 200 

sycophanta 200 

lectus 203 

tessellalus 166 

ungularis 206 

ANTHRIBI 399 

ANTHRIBIDJE 391 

Anthribus  albifrons 404 

alternatus 405 

capiUicornis 407 

coffece 407 

collaris 6 

coronatus 403 

cornutus 403 

fascicularis 403 

fasciatus 395 

limbatus 406 

lividus 403 

lunatus 404 

mceatus 402 

nigripennis  . 5 

notaius 404 

quadrinotatus 395 

tomeniosus 406 

variegatus 406 

Anthribuliis  rotundatus 407 

Aomopactus 94 

Apate  bivitata 357 

brevicornis 376 

nigrice.ps 375 

ruflpennis 376 

rufltartils 426 

APIONIDjE. 409 

Apion 410 

AphanartJirum  pumilurn 387 

APHRASTI 9S 

Aphrastus  taeniatus 99 

unicolor 99 

Apleurus  quadrivlttatus 150 

Apoionms  ovatus 9 

Aracanthus  pallidas 110 

AR^OCERINI 407 

Arseocerus  cuffece 407 

fasciculatus     407 

Aragnomus  griseus 72 

Aramigus  Fulleri 93 

tesselatus 93 

Arhynchus  tonientosus 211 

Arrhenodes  septemtrionis 325 

ARRHENODINI 325 

ARTIPI 01 

Artipus  floridanus 92 


Page. 

ATTELABID^E. 9 

Attelabusanalis lo 

bicolor 7 

bipustulatus 11 

forniicarius 327 

genalis li 

hirtus 7 

nigiipes 11 

ovatui 9 

pubescens 11 

rhois 11 

sciUeUaris 210 

similis 10 

Auletes  ater 4 

cassandrse 4 

nasali.s 412 

subcoeruleus 5 

Aulobarisanthracina 289,419 

ibis 2«9 

naso 289 

scolopax 289 

Bagous  cereus 248 

americanus 185 

bituberosus 188 

californicus 187 

cavifrons 186 

egeniis 183 

magister 186 

mammillatus 184 

nebulosus 186 

obliquus 185 

planatus 185 

pusillus 187 

restrictus 187 

sellatus 184 

simplex 183 

transversus 188 

BALANINID.S 322 

Balaninus  constrictK.s- 168 

porrectus 322,  4.34 

pistor.      309 

BARIDES 285 

Baridius  cereus 293 

angustas 298 

anthracinus 289 

calilbrnicus 433 

californicus  1 433 

carinulatus 292 

conflnis 293 

densus 295 

distans 296 

farctus 297 

ibis 289 

interstitialis 293 

tnacer 294 

mucoreus 288 

nasutus 289,  314 


I^TDEX. 


445 


Page. 

Baridius  nigrinus 2iW 

ovatus 303 

penicellus 308 

picumnus 311 

plumbeus 288 

pubescens 308 

pitsillus 208 

quadratus 201 

scolopax 289 

scutellum- album 308 

seriatus 296 

Sesostrls 300 

sparsus 293 

strenuus 290 

striatus 291 

subceneus 292 

subovalis 291 

T-signwm 299 

transversus 291 

trinotalus 288 

tumescens 292 

vestitus 288 

unibilicaius 291 

BARINI 284 

Barilepton  cribricoUe 422 

flliforme 319,  422 

lineare 422 

quadricoUe 423 

Baris  eerea 293 

carinulata     292 

conflnis 293 

interstitialis 293 

macra 294 

nitida 292 

pruinosa 294 

sparsa 293 

strenua 290 

striata 291 

subfenea 292 

subovalis 291 

transversa 291 

tumescens. 292 

umbilicata 291 

Baropsis  cribratus 259 

BABYNOTI 22 

Barynotus  erinaceus 42 

granulatus 429 

rigiduJi 56 

SchOnherri 22 

BASITROPINI 398 

Bathyrisdispar 109 

Blastophagus  piniperda 386 

Borophlaeus  minor 338 

Bostrichus    affaber 361 

avidms 366 

cavifrons 357 

concinnus 367 


I'agi. 

BostrMius   cxesiLs 363 

fasciatus 348 

flavicornis 343 

frontalis 377,  386 

inlerriiptun 366 

nitidulus 354 

parallelus 344 

pini 364,  365 

polilus 358 

semicastaneufs 361 

septentrianalis 369 

tridens 366 

xylographus 360 

Bracliybamus  electus 178 

inceratus 178 

Brachycerus  humeralis 12 

BRACHYDERINI 16 

BRACHYPI 180 

Brachystj'lus  acutus 91 

BRACHYTARSI 404 

Brachytarsus  alternatus 405 

brevis 406 

griseus 405 

limbatus 406 

plumbeus 406 

sticticus 406 

tomentosus 406 

variegatus 406 

vestitus 406 

Brachythpsus  lautus 90 

BRENTHID.^ 323,  325 

BRENTHINI 327 

Brenthus  brimneus 325 

distans 325 

formicariiis 327 

lucanus 327 

maxillosus 325 

peninsularis 327 

peregrinus 434 

septenitrionis     325 

BrucJius  cacao 407 

BYRSOPIDyE 11 

Byrsopages  earinatus 429 

Cactophagus  valid  us 332 

CALANDRIDJE 328,330 

Calandra  granaria 333 

oryzEe 333 

remotepunctata 333 

sericea 331 

CALANDRINI 332 

Calandrinus  grandicollis 305 

CALYPTILLI 26 

Calyptilluscryptops ,  27 

Campylorhynchus  tubrdatus 303 

Carphoborus  bicristatus 384 

bifurcus 383 

simplex 383 


446 


IN^DEX. 


Page. 
Caulophilus  latiuasus 340 

CENTRINI 301 

Centrinus  calvus 3U 

canus 421 

capillatus 311 

concinnus 316 

conflnis 317 

confusus 316 

decipiens 313 

dilectus 309,  43;3 

falsus 315 

griseus 312 

holosericeus 308 

Ifevirostris 309 

lineellus 312 

llneicoUis 313 

longulus .316 

modestus 310 

nasutus 314 

neglectus 310 

oUvaceus 311 

penicellus 308 

perscillus 310 

perscitus 312 

picumnus 311 

pistor 309,  4&3 

prolixus 317 

punctiger 314 

punctlrostris 309 

rectirostris 315 

scutellum-album 308 

striatirostris ;309 

strlgatus 421 

miior 311 

Centred eomus  angularis 146 

molitor 146 

pilosus 145 

porosus 146 

Oercopeus  clirysorrhceus 77 

CEUTORHYNCHI      272 

CEUTORHYNCHINI 267 

Ceutorhynchus  angulatus 277 

convexicollis  .  .  .   276 

cretura 283 

decipiens 275 

incequalis 269 

medialis 279 

obliquus 278 

puberulus 279 

pusillus 276 

pusio 276 

rapse 274 

rudis 275 

semirufus 278 

septentrionalis. . .  279 

sericans 275 

squainatus  ....   277 


Page. 

Ceutorhynchus  subpubescens.  .  .    273 

sulcipennis  ....    274 

trinngiUaris  ....    284 

tau 278 

Zimmermanni  .  .    279 

Chsetechus  setiger 78 

Chsetophlceus  hystrix 382 

Chalcodermus 236 

Chlorophanus  aeiitus 91 

imdulatus 24 

Choragus  Sayi 408 

Zimmermanni 408 

Chramesus  Cliapuisii 375 

icorise 375 

Clmbocera  pauper 56 

CIONINI 219 

Clonus  scophularise 220 

CLEONINI 144 

Cleonaspis  lutulentus 153 

Cleonopsis  pulvereus 147 

deonus  calandroides 417 

canescens 151 

carinicollis 152 

collaris 149 

frontalis 150 

inornatus 149 

lutulentiis 153 

obliquits 147 

puberulus 151 

pulvereus. 147 

quadrilineatus 150 

sparsus 152 

trivittatus 149 

virgatus 150 

vittatus 152 

Cleogonus  sedentarius 247 

Cnemogonus  epilobii 269 

Cnesinus  strigicollis 378 

Coccotorus  scutellaris 194 

CtELIODES 268 

Cceliodes  acephalus 270 

asper 270 

cruralis 270 

curtus 270 

epilobii 269 

flavicaudis 271 

leprosus 270 

nasalis 271 

nebulosus 271 

subulirostris 270 

tenuipes 270 

Coelogaster  cretura 283 

obscurus 283 

Zimmermanni 283 

Coelosternus  hispidulus 258 

Coleocerus  dispar 109 

niarmoratus 109 


INDEX. 


U7 


Pige. 

Conipsus  auriceplialus 88 

auriceps 88 

Conotrachelus  adspersus 230 

affinis 228 

albicinctus 226 

anaglypticus  ....  234 

aratus 228 

argula 227 

Belfragei 419 

COD  finis 432 

cratsegi 230 

elegans 228 

geminatus 232 

juglandis 226 

leucophijeatus  .  .  .  234 

naso 231 

nenuphar 227 

nivosus 229 

plagiatus 233 

retensus 227 

retentus 227 

seniculus 227 

sirailis 231 

tuberosus 233 

posticatus 232 

puncUcollis 232 

infector 232 

cribricollis 233 

flssunguis 234 

erinaceus 235 

hispidus 235 

Copturus  adspersus 262 

binotatus 263 

longulus 263 

lunatus 263 

mammillatus 262 

minutus 264 

nanulus 261 

nanus 260 

operculatus 261 

quercus 263 

CORTHYIil 347 

Corthylomimns  fascuttus 348 

scuteUaris 348 

Corthylus  punctatissimus 347 

scviellaris 348 

C0S80NID.E 334 

COSSONINI 337 

Cossonus 338 

californieus 435 

dubiits 339 

pallidus 339 

pinguis 340 

suboylindricus 340 

Craponius  insBqualis 269 

CRATOPARES 403 

Cratoparis  lugubris 404 


Page. 

Cratoparis  lunatus 404 

pagaaus 404 

Crypiialus  a«pe?-wZMs 350 

atratulas ;i54 

carinulatus 352 

cavus 348 

dentiger 349 

digestus 3.55 

hlspiduliis 3.55 

nitidulus 354 

pilosulus .351 

l)ubcrulus ;i54 

pubipcniiis 351 

puncUcollis 3.54 

refusus 350 

rigidus 362 

robustus 362 

robustus 356 

striatus 356 

striatulus 362 

sulcatii.s 350 

CRYPTOPLI 175 

CRYPTORHYNCIII 2.39 

CRYPTORHYNCHINI 2.33 

Cryptorliynclius  anaglypticus  .   .  \  234 

apiculatus 254 

aratus 228 

bisignatus 251 

cribricollis 233 

elegans 228 

fallax 253 

ferratus 256 

foveolatus 248 

fuscatus 251- 

gracilis 240 

luctuosus 251 

viisellus 251 

minutissimus.   .  .  254 

obliquefasciatus  .   .  2.51 

obliquus 2.53 

oblongus 256 

obtentus 253 

ocidatus 260 

operculatus 261 

parochus 251 

retentus 227 

tristis 255 

umbrosus 253 

ypsilon 2.53 

CRYPTURGI 387 

Crypturgus  atomus 387 

comaius 355 

dissimilis 356 

fasciatus 348 

materiarius 350 

minutissimus 351 

pulicarius 353 


448 


INDEX. 


Page. 

CTypturgn^  pullus, 3  i2 

punctaUssimus 347 

CURCULIONID^E 112,  121 

Curculio  aiiricephulus 88 

bicolor 7 

cretura 283 

crinitus 115 

granarius 333 

epilobii 2G9 

elongatus 125 

equiseti 163 

faseiculatus 407 

Jtavescens 115 

hilaris 86 

laccena 84 

ininutus 325 

nephele 223 

noveboracensis 121 

opalus 82 

01-yzoe 333 

pales 140 

parochus 251 

penicellus 308 

perlcarpius 284 

perscitus 312 

picumnus 311 

plagiatus 223 

punctatulus 121 

scrophularicB 220 

teter 220 

tibialis 115 

CYLADIDyE 327 

Cylas  formicarius 327 

turcipennis 327 

CYPHINI 87 

CYPHI 87 

Cyphomimus  dorsalis 105 

Cyphus  lautus 89 

placidus 90 

DERELOMINI 221 

Derelomus  flavicans 223 

signaticollis 223 

troglodytes 223 

Dendroctonus  bifurcus 383 

brevicornis 386 

frontalis 386 

Hnagii 382,  436 

punctatus 385 

ruflpennis 385 

similis 385 

simplex 385 

terebrans 385 

valens 385 

Dendrosinus  globosus 379 

Desmoris  constrictus 168 

scapalis 168 

Diaminius  subsericeus 46 


Page. 

Dichoxenns  setiger 40 

UIROTOGNATHINI 79 

Dirotognatlius  sordidus 80,  412 

Dolurgus  puniilus 3S7 

Dorytomus  brevicollis 165 

liirtus 166 

hispictus 167 

laticollis 164 

longulus 166 

luridus 165 

Mannerheimii 166 

mucidus "   "  164 

rufulus 165 

squaniosus 166 

subsignatus 165 

Dryocoetes  affaber 361 

granicollis 361 

sepentrionis 361 

DRYOTRIBI 335 

Dryotribus  mimeticus 336 

DRYOPHTHORINI 335 

DRYOPHTHOKI 335 

Dry ophtliorus  cortical  is 335 

bituberculatus  .  .  .  335 

Dyslobus  decoratus /.  .  50 

granicollis 60 

segnis 41 

Dysticheus  insignis 73 

Eccoptus  niinuius 264 

Elassoptes  .   .   .   .  ^ 341 

EMPHYASTINI 137 

Emphyastes  fucicola 137 

Encalus  decipiens 213 

Endalus  ajratus 176 

cribricollis 177 

limatulus 176 

ovalis 177 

punctatus 177 

setosus 176 

EPIC^RI •.   .   .   .  18 

Epicserus  formidolosus 20 

inibricatus 20 

ERIRHININI 160 

ERIRHINI 162 

Erirhiniis  constrictus 168 

ephippiatus 209 

juniperimis 199 

morio 163 

luridus 165 

rufulus 165 

subsignatus 165 

vesiitus 166 

Erycus  morio 163 

puncticollis 163 

Eubrychius  velatus 281 

Euchfetes  echidna 320 

Eucyllus  vagans 74 


IXDEX. 


449 


Payc. 

Eudiagogus  pulcher Ill 

Roseiisclicieldii Ill 

EudociiiiusMannerlieimii Ill 

Euguaiiiptus  angustatus 5 

coUaris.  . 6 

puncticeps 6 

striatus 5 

sulcil'rons 6 

EUGNOMI 174 

Eupagoderes  ar'Tentatiis 84 

/          decipieus 33 

desei'tus .   .  34 

geminatus 35 

lucanus 34 

plunibeus 35 

speciosus 33 

sordidus 34 

varius 35 

Euparius  lunutus 404 

lugubris 404 

pagaims 404 

Eupsalis  minuta 325 

maxiUosa 325 

Eurhoplus  pyriformis 245 

Eurymycter  fasciatus 395 

Eusphyi-us  Walshii 400 

Euxenus  punctatus 409 

EVOTI 102 

Evotus  naso 103 

EXOPHTHALMINI 100 

EXOPHTHALMI 100 

Falciger  Qcephalus 270 

quadrispinosiis 283 

Geoderces  iiicoinptus 72 

melanothrix .  71 

Gnathotrichus  corthyloides 350 

Gononotus  lutosus 337 

Gonops  flssunguis 398 

Gonotropis  gibbosus 394 

Graphorhinus  vadosus 19 

Grypidius  brunnirostris 163 

equiseti 163 

vlUatus 115 

Gymnetron  teter 220 

Hadrom  erus /liiarw 86 

opalinus 85 

Hexarthrum 341 

Itilipus  squamosus 141 

scrobiculatus 139 

Himatium  errans 427 

Homaloxenus  dentipes 338 

HORMISCI 396 

Hormiscussaltator 397 

HORMOPINI 320 

Hormops  abducens 321 

HORMORI 23 

Hormorusundulatus 24 

PROC.  AMER.   PHILOS.  SOC.  XV.  96 


Page. 

HVIJUONOMI 182 

HYLASTES 387 

Hylastes  cavornosus 388 

carhonariux 389 

erixUUus 390 

exlli.s. 389 

gracilis 388 

yrdiiosiix 389 

granuldtiis 380 

longiis 389 

macer 388 

nigriiius 388 

pinifex 390 

porculus ;W8 

porosus 388 

pumilus 387 

rufipes 390 

rugipennis 390 

salebrosus 389 

scabrosus 389 

subcoslulatus 390 

tenuis 388 

Hyk'.siiiiis  aculcatus 379 

aspericullis 380 

fasciatus 380 

hystrix 382 

imperialis 379 

iiebulonus 380 

opaculus 380 

pruinosuji 379 

rufipeniUs 376 

sericeus 380 

HYLOBIINI 137 

Hyloblus  assiiiiilis 140,  430 

confusus 140 

pales 140 

picivorus 140 

pinicola 139 

stupidus 140,  430 

torpidus 55 

HYLURGI 377 

HYLURGINI 373 

Hylurgops  cristatus 390 

granulatus 390 

pinifex 390 

ruttpes 390 

rugipennis 390 

subcostulatus 390 

Hylurgus  analogus 386 

dentatus 381 

obesus 385 

sericeus 380 

rufipennis 385 

rugipenni.s 390 

Hypomolyx  pinicola 139 

Hypothenemus  dissimilis 356 

erectus 356 

3e 


450 


INDEX. 


Page. 

Hypothenemus  hispidulus 355 

striatus 356 

Hypsonotus  alternatus 119 

ISCHNOCERI 393 

Ischnocerus  infuscatus 393 

macrocerus 393 

ITHYCERID.E 120 

Ithycerus  curculianoides 121 

noveboracensis 121 

ITHYPORI 224 

Lachnopus  floridanus 101 

L.EMOSACCINI 223 

Ijffiinosaccus  plagiatus 223 

Lepidophorus  lineaticollls 120 

Lepisomus 37tj 

Leposoma  californica 429 

Lepyrus  colon 127 

gemellus 127 

geminatus 127 

Liophlceiis  inquinatus 120 

Liparus  picivorus 140 

sulciroxtris 31 

tesselattis 93 

vittatus 30 

Lissorhoptrus  aplculatus 183 

simplex 183 

Listroderes  appendiculatus 132 

caudatus 131 

delmnhis 136 

distinffuendus 129 

humilis 136 

im-inundus 136 

incequalipennis 131 

latiuscidtis 134 

Uneatidus 136 

oregonensis 133 

porcellus 136 

solutus 136 

sordidus 129 

sparsua 136 

spurcus 136 

squamiger 130 

teretirostris 135 

Listronotus  americanus 131 

appendiculatus  ....    132 

callosus 130 

cribricollis 134 

caudatus 131 

frontalis 133 

gracilis 135 

impressifrons 134 

ineequalipennis  ....  131 

latiusculus 134 

uebulosus 133 

nevadicus 135 

obliquus 129 

oregonensis 133 


Page. 

Listronotus  punctiger 135 

rotundicoUis 132 

setosus 134 

sordidus 129 

squamiger 130 

sulcirostris 132 

teretirostris 135 

tuberosus 130 

TMhodus  humeralus 12 

ajjinis 12 

erosus 12 

longior 12 

morbillosus 12 

rectus 12 

rudis 12 

Litodactylus  velatus 2S1 

Lixellus  flliformis 182 

Lixus  asper 156 

auctus  . 155 

c.alandroides 158,  417 

californicus 160 

caudifer 156 

concavus 158 

fossus 415 

IffisicoUis 160 

lateralis 159 

macer jgo 

marginatus 160,  431 

mixtus 415 

modestus 160,  431 

mucidus 158 

musculus 158 

parous 157 

perforatus 159 

placidus 159 

pleuralis 155,415 

poricoUis 160,431 

prsepotens 160,  431 

punctinasus 157 

rectus 158 

rubellus 155 

serobicollis 159 

Sylvius 156 

terminalis 157 

texanus 155 

Lophalophus  inquinatus 120 

Macrancylus  linearis 339 

Maa'ocephalus  albifrons 404 

bimaculatus 395 

cacao 407 

fasciatus 395 

Macrops  delumbis 136 

humilis 136 

immundus 136 

lineatulus 136 

maciUicollis 136 

porcellus 136 


INDEX, 


451 


Pane. 

Mitcrops  solutus l-^(> 

spiirsus 1S6 

spurcus 136 

solutus 130 

vitlatlcollis 137 

MacrorhoiJtus  estriiitus '2<i!' 

Macrorhyncolus  protruclus 338 

Madams  iniipc/op.sidw 300 

viti.s 300 

undulatus 30) 

MaKdalis  gentilis -418 

hispoides 418 

nephcli' 223 

subtinctus 417 

Meconeinus  fiibcrrulaiux 393 

Melamomphus  niger 40 

Mesites  subcylindricus 340 

Metamasius  sericeus 331 

Miarus  hispidulus 221 

MICRACIDES 307 

Mlcracis  aculeata 3{i8 

hirtella 369 

nanula 368 

rudis 369 

sutiiralis 368 

Micralcinus  cribratus 236 

Microcholus  laivicollls 304,  420 

punotieollis 304 

striatus 304 

Microhyus  setisrer 238 

Microniastus  gracilis 246 

Mimetes  setulosus 45 

seniculus 45 

Mitostylus  tenuis 107 

Monarthrum  dentigerum 349 

fasciatuni 348 

mali 349 

scutellare 348 

Moid  us  rtifindsux 180 

MONONYCHI 267 

Mononychus  vulpeculus 268 

Mylacus  saccatus 68 

MAGDALINI 192 

Magdalis  senescens 192 

MINYOMERI 17 

Minyomerus  innocuus 18 

languidus 18 

Nanophyes  pallidulus 220 

Naupactus 94 

NemophUus  strigillatus 378 

Neopiochus  adspei'sus 65 

Nocheles  sequalis 55 

torpidus 55 

Not.iophilit^  limattilus 176 

Notiodes  apiculatus 183 

egenus 183 

limatulus 176 


Page. 

Notiodes  nigrirostris 178 

Notolomus  basal  is 222 

bicolor 222 

myricse 418 

Odontopus  c«ypea<Ms 210 

OMIIiEI 101 

Oniileus  ei)icieroides 102 

Onycliobaris  cribrata 296 

densa 295 

dislans 296 

pectorosa 295 

rugicollis 297 

seriata 2^*6 

subtonsa 295 

Onychylis  alternans 179 

longulus 179 

nigrirostris 178 

OPHRYASTINI 27 

OPHRYASTES 29 

Opliryastes  argentatax 34 

decipiens 33 

latirostris 31 

ligatus 31 

porosus 32 

speciosus 33 

sordidus 34 

sulcirostris 31 

tesseUatus 93 

tuberosus 31 

validus 31 

varius 35 

vittatus 30 

Orchestes  parvicollis 208 

puberulus 208 

ruflpes 208 

Orimodema  protracta 44 

Orthoris  Crotch ii 286 

OTIDOCEPHALINI 191 

Otidocephalus  dichrous 191 

elegantidus  .   .   .    191,  327 

OTIORHYNCHID^     13 

OTIORHYNCHINI 58 

OTIORHYNCHI 59 

Otiorhynchus  arcticus 62 

ligneiis 61 

maurus 62 

monticola 62 

naso 103 

nodosus 62 

rugifrons 61 

Sayi 61 

sulcatus 61 

Pachnseus  opalus 82 

distans 83 

Pachybaris  porosus 302 

Pachyloblus  picivorus 140 

Pachyrhynchus  SchOnherri 121 


4:52 


IKDEX. 


Pachytycliius  amoenus 16S 

discoideus 169 . 

Pandeleteius  cinereus 86 

hilaris 86 

pauperculu.s 86 

Panscopus  erinaceous 42 

ruflnasus 180 

Paragoges  macula  tu.s 219 

Paraptoehus  sellatus 67 

caUfornicus 67 

Pelenomus  cavKrons 282 

squamosus 281 

sulcicollis 2S1 

Peritaxiahispida 47 

rugicoUis 47 

Perltelopsis  globiventrls 70 

PEKITELI 6.5 

Peritelus  bellieus 49 

chrysorrhoiuii 77 

sellatus 67 

Phacepholis  Candida 97 

elegans 96,  412 

obscura 96 

Phloeophagus 341 

pallidus 3S9 

PhlcBopht horns  granicollis 377 

Phlceosinus  cristatus 381 

dentatus 381 

graniger 382,412 

Haagii 382,  412 

liminf(7-is 380 

punctatus 382 

serratus 381 

Phlcsotrihus  diibius 377 

frontalis 377 

granicollis 377 

liminaris 377 

setidosus 377 

Phcenicobiuf  Chameeropis 401 

PHYCOCCETES 189 

Phycocoetes  testaceus 189 

PHYLLOBIINI 103 

Phyliobius  calcaratus 105 

Phyllotrox  ferruginus 174 

nubifer 174 

Phymatinus  gemmatus 54 

Phyrdenus  undatus 249 

PHYTOBII 280 

Phytobius  quadrispinosus 283 

sulcicollis 281 

velatus 281 

PHYTONOMl 123 

Phytonomus  Castor 126 

comptus 125 

diversus 125 

elongatus 125 

eximius  .  , 414 


Prif/f\ 

Phytonomus  nigrirostris 126 

opimus 124 

pubicollis 125 

quadricollis 126 

setigerus 125 

trivittatus 120,  430 

PHYXELES 56 

Phy xelifi  gloniprosus 56 

rigldus 56 

seli/erus 56 

Piazorhinus  pictiis 211 

scute  liar  is 210 

Piazuru8  caUfornicus 260 

oculatus 260 

subfasciatus 260 

Piezocorynus  dispar 402 

mixtus 402 

nicestus 402 

Pissodes  afflnis 143 

eostatus 143 

dubius 143 

fasciatus 143 

maccUiis 140 

nemorensls 142 

rotundatus 143 

squamosus 141 

strobi 142 

Pityophtliorus  asperulus 350 

bisulcatus 352,  435 

cariniceps 353 

carinulatus 352 

conflnis 354 

crihripennis  .  .   .  354,  435 

comatus 355 

digestus 355 

fossifrons 353 

infans 355 

lautus 354 

materiarius   ....  350 

minutissimus  .  .  .  351 

nitidulus .354 

pilosulus .351 

puberulus 3.54 

pubipennis .351 

pulchellus  .   .   .  3.52,  435 

pulicarius 353 

pullus .3,52 

puncticollis 354 

retusus .3.50 

PLATYPODIDjE 342 

Platypus  Blanchardi 344 

compositus .344 

disclporus 343 

flavicornis 343 

parallelus 344 

perfossiis 344 

punctulatus 344 


INDEX. 


453 


P(t(ie. 

Platypus  quadridentiitus 344 

rtigosax 344 

rugulosus 344 

trcrni/prus 344 

Plinthodes  tfBiiiatus 118 

Plinthus  carinatus 130 

Plocanius  hispidulus 320 

Plocetes  ulnil 213 

Pnigodes  setosus 189 

Polydrosus  americanus lOH,  428 

elegans 106 

POLYGRAPH! 374 

Polygraphus  rufipetinis 376 

pdr/inatiin 376 

Pseudobaris  albilatus 298 

angusta 298,  420 

angustula 420 

antbracina 420 

farcta 297 

nigrina 298 

pectoralis 420 

pusllla 298 

T-signum 299 

Pseudomus  sedentarius  ....  247,  419 

truncatus 246 

PRIONOMERINI 210 

Prionoineriis  calceatus 210 

carbonarius 210 

Procas  plcipes 162 

Proctorus  armatus 212 

PROMECOPINI 108 

PTEROCOLID^E. 9 

Pterocolus  ovatus 9 

Pterocyclon  longulwm 349 

similes 348 

Ptochus  adspersus 65 

globiventris 70 

saccatus 68 

tesselafus 65 

Rhina  frontalis 334 

plaglata 223 

RHIXID^E 333 

RFIINOMACERIDM 1 

Rhlnomacer  boinblfrons 412 

conaptus 2 

elongatus 2 

pilosus 2 

Rhinoncus  longulus 284 

pericarpius 284 

pyrrhopus 284 

Rhinosim.us  collar  is 6 

nigripennis 5 

RHIGOPSES 36 

Rhigopsis  effracta 37 

Rhodobsenus  pustulosus 332 

13-punctatus 332 

Rhopalopleurus  LeconteL 375 


Page. 

Rhoptobaris  canesoens 287 

Mhynchcenus  argula 227 

brunnirostris 163 

caudutus 131 

cerasi 227 

constrictus 168 

epilobli 269 

equisM 163 

iMterstitialis 293 

lemnce 178 

nenuphar 227 

nigrirostris 126 

pallidulus 220 

sirobi 142 

teter 220 

umbellcB 432 

undidatus 301 

velatus 281 

vidpeculus 268 

Rhynchites  seneus 7 

seratus 9 

angustatus 5 

aureus 8 

bicolor 7 

collaris 6 

congrua 428 

curcidionoides 121 

cyanellus 8 

eximius 413 

fossifrons 8 

glastinus 7 

hirtus 7 

humeralis. 428 

mexicanus 7 

■  nigripennis 5 

planifrons 8 

rtificolUs 6 

viridiseneus 428 

RFTYNCHITIDuE 3,  4 

RHYNCHOPHORINI 33 

Rhynchophorus  crucntatus  ....  33 

palmarum  ....  424 
prcepotens.  .   .  .  160,  431 

oryzw. 333 

RHYNCOLINI 340 

Rhyncolus 341 

latinasus 340 

protraeius 338 

Rhypodes  dilataf  us 75 

brevicollis 76 

Rhyssematus 236 

Rhytidisomus  orobinus 432 

Scierus  annectens 391 

Sciopithes  obscurus. 63 

8COL  YTIDyE. 341,  345 

SCOLYTINI 370 

Scolytus  californicus 372 


454 


LNDEX. 


Page. 

iSoolytus  c'ar(/(T! 371 

fagi 372 

Jtavicornis 343 

frontalis 377 

muticus 372 

niuticHs 371 

prwceps 373 

pyri 360 

quadrklentatus 344 

quadrispinosns 371 

subscaber 373 

sulcatus 373 

tei-cbrans SS5 

unispinosus 372 

ventralis 373 

Scyphophorus  acupuiietiitiis.      .  331 

rob  until  If 331 

yucfie 331 

Bcythropus  calitbrnitrus 107 

elegans 106 

Sibynes  fulvus 219 

ISITONID.E. 113 

Sitojies  californicus 114 

crinitus 115 

flavescens 115 

hcemorrhoiddlix 412 

hispidulus 412 

indifferens 114 

lepidiis 115 

line(-llus 114 

octopunctatii  s 115 

scissifro)iit 114 

seniculuH 115 

sorditlus 114 

tibialis 115 

vittatus 114 

Sitophilus  f/raiiuriiis 333 

orj/zrc 333 

rotioti'pinict'ifiiN 333 

Siiiicroiiyx  cinereus 173 

coriiiculatus 173 

corpulentus 170 

tlavicans 171 

fulvus 172 

griseus 171 

obtectus 171 

ovii)ennis 170 

pusio 171 

seriatus 172 

squamulatus 173 

sordidus 173 

tychoides 171 

veslitus 172 

SPHENOPHORINI 330 

Bphenophorus  callosus 425 

cariosus 425 

oblltus 425 


Par/e. 

SpVninoi)hoTUii  procerus 332 

pustulosus 332 

scuptilis 425 

sericeufi 331 

IS-punctatus 332 

validus 332 

variolosus 424 

velutinus 424 

zece 425 

StenoTT)inius  pallidus 339 

Steplianocleonus  cristatus 147 

pluiubeus     .    .   .  146 

Stephanodpres  CJiapui.iii 356 

sei-iatun 356 

STENOPELMI 179 

Stenopelmus  rulinasus 180 

.Stenoseelis ■   ■ 341 

Stethobaris  corpulenta 420 

tubulata 303 

Sthereus  A-i.uberculatus 190 

STRANGALIODES 37 

Strophosoinus  tesselatux 93 

TACHYGONINI 265 

Taohygonus  centralis 266 

fulvipes 266 

horridus 266 

Lecontei 266 

tardipes 266 

TANYMECINI 81 

Tanymecus  confertus 84 

confusuii 84 

lacsena 84 

lautufi 89 

leucopJiceus 84 

Tanypshyrus  lemnse 178 

Thecesternus  humeralis 12 

Thinoxenus  squalens 75 

Thricolepis  inoriiata 69 

simulator 69 

Thricomigus  luteus 48 

Thysanocnemis  fraxini 214 

belvolus 214 

Thysanoes  finibricornis 370 

TOMICI 352 

TOMICINI 345 

Tomious  avulsus 366 

calligraphus 363 

cacographus 364 

concinnus 367 

confusus 364 

dentatus 426 

emargiiiatus 364 

hudsonicus 366 

interruptus 366 

latidens 367 

■mali 349 

■materiarius 350 


INDEX. 


455 


Patje. 

Tomicus  oregonis 4.T) 

palUpes 42() 

perturbatus 4.S5 

pini :^(i.i,  420 

pliistosvaphus 8ti4 

prce/ricdis SiiS 

prcemorsug ;}()3 

pusiUus 351 

pubipennls 851 

pyri 860 

rectus .'iiio 

tridens oWi 

Toxonotus  fascicularis 4(18 

Toxoti'opis  approxiinatus 39.S 

pusillus 8i)8 

TRACHODINI 190 

'£  rsuchodes  fanciculatns 190 

horridus 191 

ptlnoides 190 

4-tubercuIatus 190 

TRACHYPHLCEI 7t) 

Trachyphlceus  asperatus 79 

melanothrix 71 

Trichalophus  alternatus 119 

constrictus 119 

didymus 119 

planirostrls 418 

seriatus 119 

simplex 119 

Trichischius  crenatus 426 

Trichobaris  pluinbea 288 

texana ....  288 

trinotata 288 

Triglyphus  ater 117 

trigonoscut.^j: 25 

Trigono.scuta  pilosa 26 

TROPIDERES 393 

Troplderes  blmaculatus 395 

rectus 395 

TROPIDERINI 392 

TYCHIINI 211 

Tychius  aincenus 168 

arator 216 

aratus 217,  482 

corniculatus 174 

hirtellus 218 

lineellus 217 

semisquarnosus 217 

setosus 218 

sordid  us 217 

tectus 217 

Tyloderes  gemmatus 54 


I'lUIP. 

Tyli)dei-ma  iiTouiii 2I.S 

baridiuin 249 

foveolatuiu 2JS 

fragariif 24s 

longum 248 

morbillo.suin 247 

varlegatuin 248 

Tylopterus  pallidus 215 

varius 215 

Wollastonia .841 

XENORCHE.STINI 40.S 

Xenorchestes  americanus 408 

XYLEBOKI .858 

Xyleborus  affaher 861 

biographus 860 

Cffilatus 860 

celsus 3(>0 

fuscatus 360 

grcmicolHs 361 

hamatus 361 

impressus 860 

obesus 360 

plagiatus 361 

planicollis 361 

pubescens 360 

pyri 360 

pini. 360 

retusieollis 860 

septentrionis 361 

sparsus -360 

tachygraphus 360 

vicinus 860 

xylographus 360 

XYLOTERI 356 

Xyloterus  bivittatus 357,  426 

cavifronx 357 

politus 358 

retusus 357 

scabricollis 358 

unicolor 358 

Yuccaborus  frontalis 334 

Zagiyptus  striatus 237 

sulcatus 237 

Zascelis  irrorata 257 

serripes 257 

squamigera 257 

^Zygobaris  conspersa 818 

convexa 422 

nitens 318 

ZYGOPINI 259 

Zygops  quercus 263 


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