ffiTm Ia^SPS,S' s6^6to mm>:^ r ife I' !■ 1;: I- I-' s^7,73 ANNALS OF THE CARNEGIE MUSEUM VoL. XXI 1931-1933 W. J. HOLLAND, Editor Published by the Authority of the Board of Trustees of the Carnegie Institute November 1931 — January 1933 , From a painting by Leopold Seyffert OBITUARY. William Jacob Holland.. With the death of Dr. William Jacob Holland, which occurred on December 13, 1932, an eminent figure in the world of science passed away. He was the dean of American entomologists, the author of innumerable publications in this field. But Dr. Holland was far more than an eminent entomologist of world-wide reputation — he was a naturalist of a universality of erudition which is but rarely found among scientific men of the present day. With a prodigious memory, a keen understanding of the diversity of scientific problems, he was at home in the manifold domains of learning. Above all, he was a man of out- standing intellectual and spiritual culture, and that is why his loss has created an irreparable void in the community with which he has been associated for nearly three scores of years and within the ranks of his fellow workers in the scientific field. William Jacob Holland was born in Bethany, on the island of Jamaica, on August 16, 1848. His family was of Moravian extrac- tion, residing for a long time in Salem, North Carolina. From there his father was sent as a missionary to the West Indies. From early boyhood Dr. Holland was trained in studies of natural history. Upon graduation from the Moravian College and Theological Seminary at Bethlehem, Pennsylvania, in 1867, he received the degree of bachelor of arts from Amherst College in 1869. For a year after graduation he served as principal of a high school in Amherst, and the following year occupied the same position at Westboro, Massachusetts. Having been ordained into the Moravian ministry he entered Princeton Theological Seminary and concluded the course in 1874. Subsequently he joined the Presbytery of Monmouth and came to Pittsburgh as pastor of the Bellefield Presbyterian Church, which position he held until 1891. In the course of his pastorate Dr. Holland devoted much time to scientific studies. He went to Japan as a member of the United States Eclipse Expedition in 1887 and used this opportunity in a very profitable way for various biological investigations. In 1891 he was made chancellor of the Western University of Pennsylvania, now the University of Pittsburgh. In 1898 his friend, Andrew Car- negie, invited him to assume the responsibilities as director of the 1 museum founded by this steel magnate. This office was held by Dr. Holland with signal success until 1922, when he became director emeritus of the Carnegie Museum. Under the administration of Dr. Holland the museum attained the rank of one of the most important scientific institutions of its kind on the continent. It would be scarcely possible to describe in a brief sketch all the outstanding services of Dr. Holland to this institution. Any attempt to enumerate his major accomplishments in this respect would be futile since it would necessi- tate a recital of the whole history of the growth of the Carnegie Mu- seum since its inception. Dr. Holland performed the duties as vice- president of the Carnegie Hero Fund from 1904 to 1922, and upon his election as president of that body became a member of the Carnegie Corporation. In this latter capacity, Dr. Holland had an opportunity to devote his efforts in a most indefatigable way toward the promo- tion of the divers causes within the competence of that body. Dr. Holland was an active member of the board of trustees of several institutions of higher learning, and carried on the duties of Belgian Consul for some years after the world war. He had the distinction of becoming the founder of the American Association of Museums in 1907, and remained president of the association until 1909. He was a member of scores of scientific societies, among them the Zoological and Entomological Societies of London, the Entomological Societies of America, Washington, New York, Cambridge, Germany, France, Russia, and Brazil; the American Zoological Society, Royal Society of Edinburgh, American Philosophical Society, and several foreign scientific academies. He was a councilor for the Association for Inter- national Conciliation, a member of the Academy of Natural Sciences, Philadelphia, the Pennsylvania Historical Society, Historical Society of Western Pennsylvania, and Moravian Historical Society. Dr. Holland was the author of numerous scientific treatises and books, notably of ‘‘The Butterfly Book” and ‘‘The Moth Book,” which became sources of reference for specialists and were chiefly instrumental in stimulating a widespread interest in lepidopterology among amateurs in this country. He also wrote many scientific papers issued by the United States Government and by various learned so- cieties in America and abroad. The list of his contributions reaches about five hundred bibliographical items and covers an extraordinary variety of topics. The entomological papers alone approach one hun- dred and twenty titles from the year 1886 to the last years of his life. ii A large proportion of his papers on Lepidoptera deal with forms of Rhopalocera and Heterocera from West Africa. The lepidopterous fauna of Congo was thoroughly studied by Dr. Holland who also con- tributed to the knowledge of the butterflies of Somaliland, Sierra Leone, Kamerun, and the Seychelles. Other articles deal with the Lepidoptera of the Bahamas, the Isle of Pines, Hainan, Celebes, and Bum. Several articles written at various times of his long entomo- logical career were devoted to the fauna of different portions of North America. In recent years Dr. Holland paid much attention to certain taxonomic problems and discussed on several occasions the significance of Hiibner’s “Tentamen” as a basis for nomenclatorial changes pro- posed by some modern authors. The Encyclopa?dia Britannica applied to him as to a leading specialist in the museum field for the preparation of a survey of the history of scientific museums. For the last thirty- four years he edited the Annals and Memoirs of the Carnegie Museum, lending to these publications the imprint of his literary discrimination and brilliant scholarship. Numerous seats of higher learning honored themselves by bestowing degrees of honorary doctorate upon this distinguished scientist in recognition of his eminence in learning. Among such universities were Washington and Jefferson College, Am- herst College, Dickinson College, New York University, Bethany College, St. Andrew’s in Scotland, and the University of Pittsburgh. Dr. Holland owned an extensive entomological collection which was particularly rich in Lepidoptera from North America, Africa, and cer- tain regions of Asia. It contained representative series of Rhopalocera and Heterocera from various countries in different parts of the world. Especially valuable portions of the collection of Dr. Holland were the Pyralids collected by Pryer in Japan and the well-known collection of North American Rhopalocera assembled by Edwards, with all the types described by these noted entomologists. Dr. Holland’s collec- tion included types of many hundreds of new species which were described by him during his life time. One of the most significant scientific achievements of Dr. Holland was connected with the paleontological explorations of the Carnegie Museum which were directed by him in Utah, Wyoming, Montana, and North Dakota. The finds of these expeditions resulted in many discoveries, including the celebrated Diplodocus carnegiei, the original skeleton of which is adorning the gallery of fossils in the Carnegie Museum, whereas nine replicas were presented to the leading scientific 111 institutions in Europe and both Americas. In recognition of his contributions to science Dr. Holland received decorations from Belgium, Austria-Hungary, Italy, Russia, and Spain. Dr. Holland passed away amid his favorite labors, lending his concentrated attention, as throughout his life, to current problems of natural history advanced by contemporary investigations. Until the end he remained absorbed by the adventurous spirit of scientific re- search, responsive to the lure of exploring some new avenue of the ever-widening horizons of knowledge. He lived a life of exceptional usefulness. Endowed with a profusion of gifts, among which his linguistic abilities were by far not the least, he cultivated his native talents and molded them into a personality of unique qualities and values. A churchman, a leader in education, the father of the Carnegie Museum in Pittsburgh, a man of learning honored far and wide by academics, international congresses, and universities. Dr. Holland will not only be mourned sincerely, but his achievements will also not fail to remain an inspiration challenging the best within us. A. Avinoff. IV TABLE OF CONTENTS Title Page Obituary: W. J. Holland i-iv Table of Contents v List of Plates vii List of Figures in Text viii List of Genera and Species New to Science x Dates of Issue of Articles as Separata xiii Errata and Corrigenda xiv Editorial Notes i-6; 57-60; 93-96; 185-189 1. A New Subspecies of Poanes Massasoit Scudder. By Austin H, Clark 7-9 11. Field Keys to the Lizards and Amphibians of British Guiana. By Stanton C. Crawford 11-42 III. New Species and Subspecies of African Birds. By Rudyerd Boulton 43“56 IV. New Species from the Oligocene of the Uinta. By O. A. Peterson 61-78 V. A New Arctic Weasel from Southampton Island, Hud- son Bay. By George Miksch Sutton and William J. Hamilton, Jr 79“8i VI. A Synopsis of the Genus Metrobates Uhler (Hemip- tera: Gerridae). By C. J. Drake and H. M. Harris 83-88 VII. A New Species of Delocrinus. By J. J. Burke 89-94 VIII. Jurassic Insects from Solenhofen in the Carnegie Mu- seum and the Museum of Comparative Zoology. By F. M. Carpenter 97-129 IX. A New Turtle from the Duchesne Oligocene of the Uinta Basin, Northeastern Utah. By John Clark. . 131-160 V VI Contents X. i\ New Anosteirid from the Uinta Eocene. By John Clark 161-170 XI. Neotropical Bats in the Carnegie Aluseum. By Colin Campbell Sanborn 171-183 XII. Revision of the Subfamily Thyreocorinae of the Pentatomidse (Hemiptera-Heteroptera). By W. L. McAtee and J. R. Malloch 191-411 XIII. Natica Sancti-Vincentii. By Stanley T. Brooks 413 Index 415-424 LIST OF PLATES Portrait of Dr. W. J. Holland Frontispiece I. Columnar Section of Horizons A. B. C. and Duchesne Oligo- cene; Stratigraphic Section of Uinta Basin. II. Metrobates; anatomical details. HI. Delocrinus allegheniensis Burke. IV. Galgiipha, Cyrtomenis, Strombosoma, Carrabas, PangcBiis; anatomical details. V. Thyreocoris, Allocoris, Galgupha, Cydiioides; anatomical details. VI. Allocoris, Cydnoides, Galgupha ■, anatomical details. VII. Galgupha, Alkindus, Amyssonotiim, Pericrepis; anatomical details. VI H. Pruhleria, Thyreocoris, Godnuinia, Allocoris, Strombosoma, Carrabas, Galgupha-, anatomical details. IX. Galgupha-, anatomical details. X. Galgupha-, anatomical details. XI. Galgupha-, anatomical details. XI I. Galgupha-, anatomical details. XI I I. Galgupha-, anatomical details. XIV. Galgupha, Cydnoides, Alkindus, Amyssonotiim-, anatomical details. XV. Amyssonotiim, Pericrepis, Thyreocoris, Pruhleria, Godmania, Allocoris-, anatomical details. XVI. Allocoris-, anatomical details. XVI I. Allocoris, Carrabas-, anatomical details. vii LIST OF FIGURES IN TEXT ART. I. Fig. I. P. massasoit massasoit Scudder; P. massasoit, var. hiighi Clark 8 ART. III. Fig. I. Phylogenetic tree of the genus Macrosphemis 48 Fig. 2. Variation of bills in the genus Alacrosphenus 49 ART. IV. Fig. I. Top view of skull Crocodiltis {?) acer Cope 64 Fig. 2. External and crown views of M\ M^. Hycenodon sp?. . 65 Fig. 3. Anterior view of right humerus. Hyanodon sp? 66 Fig. 4. Crown and side views of right jaw. Epihippus {Du- chesnehippus) mtermediiis Peterson 67 Fig. 5. Crown and side views of lower teeth. Heteraletes leo- tanus Peterson 69 Fig. 6. Anterior view of femur. Hyracodoti? 70 Fig. 7. Dorsal view of astragalus 70 Fig. 8. Crown and side views of left jaw. Mesamy^wdon mediiis Peterson 71 Fig. 9. Crown views of upper and lower teeth. Pentacemyliis progressus Peterson 73 Fig. 10. Crown view of upper molar.? Diplohunops 74 Fig. II. Dorsal views of astragalus and cuboid. Protoreodon?. 75 Fig. 12. Crown and side views of dentition and left jaw. Poa- hromyhis kayi Peterson 76 ART. VIII Fig. I. Hexagenites weyenherghi Scudder, fore wing 102 Fig. 2. Tarsophlebia eximia (Hagen), base of fore wing 105 Fig. 3. Stenophlehia latreillei (Germar), diagram of main veins at base of fore wing 106 Fig. 4. Urogomplius giganteus (Germar), bases of fore and hind wings 109 Fig. 5. Cymatophlehia longialata (Germar), hind wing and base of fore wing no Fig. 6. Cymatophlehia jiirassica, no\ in viii List of Figures in Text. ix F'ig. 7. Protolmdenia kcEhleri (Hagen), fore wing and base of hind wing 1 13 Fig. 8. Mschnogomphus hitermedius (Hagen), base of hind wing 1 14 Fig. 9. '' Corydelis"' vetusta Hagen, part of fore wing 123 Fig. 10. Pseiidosirex ncuiiis Handlirsch, fore wing 126 Fig. II. Fore wing of Xeris caxdatus 127 ART. IX. Fig. I. Dorsal view of Shell of Cymatholcus longiis 133 Fig. 2. Lateral view of Shell of Cymatholcus lo7igiis 136 Fig. 3. Ventral view of Shell of Cymatholcus longiis 138 Fig. 4. Cervical Vertebrae of Cymatholcus longus 141 Fig. 5. Caudal Vertebrae of Cymatholcus longus 143 Fig. 6. Anterior view of left side of pectoral girdle of Cyma- tholcus longiis 145 Fig. 7. Posterior view of left side of pectoral girdle of Cyma- tholcus longus 146 Fig. 8. Inferior view of left side of pectoral girdle of Cyma- tholcus longus 147 Fig. 9. Ventral view of pelvic girdle of Cymatholcus longus .... Fig. 10. Lateral view of right side of pelvic girdle of Cyma- tholcus longus ; 150 ART. X. Fig. I. Dorsal view of Shell of Pseudanosteira pulchra, sp. nov.. 163 Fig. 2. Ventral view of Shell of Pseudanosteira pulchra, sp. nov 164 ART. XIII. Fig. I. Natica sancti-vincentii Brooks, sp. nov 413 LIST OF GENERA AND SPECIES NEW TO SCIENCE Poanes massasoit hughi Clark, subsp. nov. Insecta 7 Gymnobucco calvus vernayi, “ ‘‘ Aves 44 Viridibucco coryphaea angolensis Boulton, “ subsp. nov.. . 46 Macrosphenus pulitzeri Boulton, sp. nov. 50 Apalis cinerea grandis Boulton, subsp. nov. “ 52 Apalis bamendae strausae Boulton, subsp. nov. “ 53 Seicercus laurae Boulton, sp. nov. “ 54 Laniarius nyasaB Boulton, sp. nov. “ 55 Epihippus intermedius Peterson, sp. nov. Mammalia... 66 Heteraletes leotanus Peterson, gen. et sp. nov. “ ... 68 Mesamynodon medius Peterson, gen. et sp. nov. “ ... 71 Pentacemylus progressus Peterson, gen. et sp. nov. “ ... 72 Poabromylus kayi Peterson, gen. et sp. nov. “ • • 75 Mustela arctica semplei Sutton and Hamilton, subsp. nov. Mam- malia 79 Metrobates cubanus Drake & Harris, sp. nov. Insecta 86 Metrobates spissus Drake & Harris, sp. nov. “ 88 Cymatophlebia jurassica Carpenter, sp. nov. “ iii Cymatholcus longus Clark, sp. nov. Reptilia 132 Pseudanosteira pulchra Clark, gen. et sp. nov. Reptilia 161 Phyllostomus hastatus Sanborn, subsp. Mammalia 175 Galgupha aliena McAtee & Malloch, sp. nov. Insecta. .213 Galgupha apicata “ “ ‘ ‘ ' ‘ 213 Galgupha assimilis “ “ “ “ . 214 Galgupha australis ‘ “ “ ‘..215 Galgupha caudata “ “ “ “ . 217 Galgupha caudiculata “ “ “ “ .217 Galgupha contra “ “ “ “ .217 Galgupha contracta ' ‘ ‘ “ “ .218 Galgupha curvata ‘‘ “ “ “ . 220 Galgupha curvatula “ “ “ “ . 220 Galgupha insula ‘ “ “ “ 223 Galgupha labrata “ ‘ “ “ . 224 Galgupha lucretia “ “ ‘ “ 225 Galgupha mammula “ “ ‘ “ . 226 Galgupha nitida “ “ ‘ “ . 226 Galgupha obesa “ “ “ ‘ . 227 Galgupha opacifrons “ “ ‘ “ . 227 List of Genera and Species New to Science. Galgupha opercula “ ' “ “ . . Galgupha parae “ “ “ ‘ . Galgupha parallela “ “ ‘ . Galgupha punctata ‘ “ ‘ “ . . Galgupha regularis “ “ “ ‘ . Galgupha romana “ “ “ ‘ . Galgupha rostrata “ ‘ ‘ “ . . Galgupha sahlbergi “ “ “ ‘ . Galgupha valvata “ “ “ ‘ . Galgupha varipennis ‘ ‘ “ “ . . Galgupha acuta ‘ ‘ “ ‘ . Galgupha bicornis “ “ “ “ . . Galgupha cydnoidea “ ‘ “ “ . . Galgupha dimorpha “ “ “ “ . . Galgupha diversa ‘ “ “ “ . . Galgupha geayi “ “ “ ‘ . Galgupha inaequalis “ ‘ ‘ ‘ . Galgupha intermedia ‘ “ “ “ Galgupha lineata “ “ ‘ ‘ ‘ . Galgupha morbiloci ‘ “ “ “ . . Galgupha nitidipennis “ “ ‘ ‘ ‘ . Galgupha notha “ ‘ “ “ . . Galgupha novatra Galgupha occulta Galgupha omissa “ “ “ “ . . Galgupha parva “ “ “ “ . . Galgupha punctif er “ “ ‘ ‘ . Galgupha singularis “ “ “ “ . . Galgupha soror “ “ ‘ . Galgupha texana “ “ “ ‘ . Galgupha triconcava “ “ “ “ . . Galgupha unica “ ‘ “ ' . . Galgupha castor “ “ ‘ ‘ . Galgupha pollux “ “ “ ‘ . Galgupha anomala “ “ ‘ “ . . Galgupha crassa “ “ “ “ . . Galgupha carinata “ “ ‘ “ . . Galgupha hesperia “ ‘‘ “ ‘ . Galgupha daldorfii var. fabricii var. nov. McAtee & Malloch, In- secta Galgupha vinculata var. insularis var. nov. McAtee & Malloch, In- secta Galgupha vinculata var. suiinamensis var. nov. McAtee & Mal- loch, Insecta Galgupha akerna McAtee & Malloch, sp. nov. Insecta. . Galgupha alutacea “ “ “ . Galgupha anomala “ “ “ “ . . xi 228 228 228 229 231 231 232 233 235 236 246 247 251 253 254 256 258 258 259 260 261 262 262 263 263 264 264 267 268 269 269 270 271 271 272 275 282 284 287 289 290 295 295 296 xii List of Genera and Species New to Science. Galgupha boliviana “ “ “ “ . . 296 Galgupha brevis “ “ ..297 Galgupha caracasana ..299 Galgupha eas “ “ !! “ . 301 Galgupha fossula “ “ “ • • 302 Galgupha grenadensis “ “ •302 Galgupha inornata • • 302 Galgupha juno “ “ •303 Galgupha marginalis “ “ " “ ■ •303 Galgupha microphthalma “ Galgupha oculata ..309 Galgupha repetita ..311 Galgupha stramineipennis • 312 Galgupha surda “ “ “ " •313 Galgupha altera “ Galgupha bergiana “ “ “ “ • • 318 Galgupha bisignata ■ •319 Galgupha carbonata !! !! Galgupha casta “ “ • • 320 Galgupha costomaculata “ • ■ 320 Galgupha fimbriata “ •321 Galgupha imitans “ “ • • 322 Galgupha inops “ • -322 Galgupha mayana •■323 Galgupha media ••323 Galgupha mexicana “ ••324 Galgupha neobisignata " ■•324 Galgupha obovata “ • ■ 326 Galgupha pallipennis “ • • 326 Galgupha tabellula “ ••327 Galgupha amitta ..329 Galgupha australis ■330 Galgupha china ■330 Galgupha oblonga “ " ••331 Galgupha punctifrons ••332 Galgupha vittifrons “ “ •■333 Galgupha simplex ••333 Galgupha albipennis “ “ ••336 Galgupha breddini " “ ••337 Cydnoides confusus " “ -341 Cydnoides peregrinus " ••344 Cydnoides nitens “ “ “ “ ••345 Cydnoides reticulatus “ “ “ -346 Cydnoides setiventris “ ••346 Pericrepis afer “ “ “ " ••352 Allocoris alpina “ " ••363 Allocoris barberi " " ••365 List of Genera and Species New to Science. xiii Allocoris contrasta “ “ “ “ . 366 Allocoris porallina “ “ “ “ . 366 Allocoris digitata “ “ ‘‘ “ . 367 Allocoris elegans “ “ “ “ . 368 Allocoris feminea “ “ “ “ . 368 Allocoris limata “ “ “ “ .373 Allocoris micans ‘ “ “ ‘ . .374 Allocoris palmeri “ “ “ “ . 377 Allocoris incognita ‘‘ “ ‘ ‘ 386 Allocoris virilis ‘ “ ‘ “ . 387 Allorocis signor etii “ “ ‘ “ 388 Natica sancti-vincentii Brooks, sp. nov. Mollusca 413 DATES OF ISSUE OF PARTS OF VOLUME AS SEPARATES Art. I November 14, 1931. Art. 7 April 30, 1932. Art. 2 November 14, 1931. Art. 8 September 2, 1932. Art. 3 November 13, 1931. Art. 9 September 2, 1932. Art. 4 December 19, 1931. Art. 10 September 2, 1932. Art. 5 February 13, 1932. Art. ii September 15, 1932. Art. 6 April 30, 1932. Art. 12 January 10, 1933. Art. 13 January 18, 1933. ERRATA Some changes in names of species were introduced in the genus Galgupha by the authors after the completion of the printing of the article together with the Index. These alterations together with other errata are indicated herewith. p. 191: I2th line from top, for “201,” read 201-388. p. 195: 6th line from bottom, for C (Enina'' read CcEnina. 4th line from bottom, for “the last four names above cited,” subistitute Chlcenocoris and Cursiila. p. 196: loth line from bottom, add “ Coenina belongs near Eysarcoris." 9th line from bottom, for '' scaraheoides" read scarabcEoides. p. 198: 6th line from top, for “gilletti" read gillettii. nth line from bottom, for ''gen. nov." and "nom. nov.," read gen. nov. and nom. nov. p. 212: 13th line from top, for “parse” read parae. 19th line from top, for “parse” read parae. p. 213: 8th line from top, for “parse” read parae. p. 249: Omit I2th, nth, loth, and 9th lines from bottom, p. 261: i6th line from bottom, for “differentialis” read differentialis. p. 274: 6th line from top, for "Tetyra," read Cimex. p. 286: Transfer last four lines to top of p. 287. p. 287: Transfer first three lines to foot of p. 286. p. 293: 7th line from bottom, for “anomala” read bakeri. p. 294: I2th line from bottom, for “anomala,” read bakeri. p. 296: 15th line from top, for “anomala” read bakeri. p. 306: 2 1 St line from bottom, for "anomala" read bakeri. nth line from bottom, for "a7iomala" read bakeri. p. 313: 20th line from top, for "schmidtii" read smidtii. p. 325: 7th line from bottom, for " paratype" read paratype. p. 329: I2th line from bottom, for “australis” read meridiana. 6th line from bottom, for “australis” read meridiana. p. 330: nth line from top, for “australis” read meridiana. p. 365: 2nd line from bottom, for "intermedia" read alpina. p. 389: 13th line from top, for “circumfusa, flavo-bisignata, pam- peana, setigera,” read circumfusus, flavo-bisignatus, pam- pe&nus, setigerus. p. 396: Between 3d and 4th lines from top insert “Galgupha, cont’d.” p. 402: In last line, for “drawings” read drawn. XIV Serial No. 150 5^7, 73 / Publications of the Carnegie Museum ANNALS OF THE CARNEGIE MUSEUM VoL. XXI, No. 1. November, 1931 For sale by Messrs. Wheldon & Wesley, Ltd., 2-4, Arthur St., New Oxford St., London, W. C. 2, England: Messrs. R. Friedlander u. Sohn, II Carlstrasse, Berlin, N. W. 6, Germany : Maruzen Company, Ltd., 11-16, Nihonbashi, Tori-Sanchome, Tokyo, Japan: and at the Carnegie Museum, Schenley Park, Pittsburgh, Penna., U. S. A.. x, I ■ -A / r r V) ^ >/■ ^^y\^> -:!■ ' '■ A ■ t ^'-V- V— / '’> I : t ;,' ■ ' /f^ f „ v^ , 1,} ^ V ' tv ^ ' ,/. fvv I A ,, ,i ,A ' - C V , "r y y " . , r .#tyK;y /•t'"' 'xt' t- : ■•K • j<4M 'AVO' ’ : yt ^ '.xVr< /■ ^..t • ' ^., ■t' r i’ ; '■'■ '■■'■ C-f^ ' '■ '' Y V, ^ 0 t' y.y :t/''t‘ X yy.Y' yy - s ^ Yr^' * ^ ! Y '” 1 ' ' c I ^1 / ^ V ^ " y Y , > ^ ^'>> } Y y ‘' "" ' -'' 'V ^ ( I Y\ ^ jx y 'r: /j. .w V ‘ oL^ I h \ Y^ ' I ^ ^ 7', y' -t. '■'' •y -s ; i "< r \\ / V /' -- ^(\ ''- vt'.ytv, , I ./ A c c : y r^, L : % - y> y Y >; ■y-AxY /Y.' 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' •■-4x>A-'':.;4''V/ V..,(^,. r4n - > ^ X’. . r ' V . j ',- X ■, ■' /'■-v;-' pkmm, 'X'<'., \y v,.;V, / ^ V ' - i '- '^' y. ,,'''.! ■';./? 4 ^ : 4, '.v' ^44 4: ’• V - -■'4:;J./'( '. k *■' ■ /h. : ' ' ' '"'Mr . 'ly -Mkh .y,- m-'r- ''^ '4 ;' c i X' ■' ^'' ' ,k'|4 •- 4 --.444 4%4', 4 - 7 / / '^4 / V < X A\ . -44/.;^. 4 'v 4’444!f4 ' '.'/A'' ■ , /’•+'A%fSx?4'?a 44 / N S^'- , V ^ l! ' ^ i Vr:. 'r /, I 1 •, i ^ 4 4;^4V/ ^ 4/Va \ Ay ^ V -4 4^ /- V''' <' I ' y' ^ rv \ X ' ^ V 4'44v/ : V - A 4rV'v'oi4^ ymX' ^ “ ^ ^ ‘ ^ '( k'Xi. I ''' 4/ /XV)- ' y^/KkXt,m ; ;,.'.';X'r.'/sX-,-' '■-\M\.^\,-':m,: 4 yX ,rl r'X\r T ^ ^ ^ ^ X><' i ' X V'X-'I m-U '-■v.. < N'' 4< . -VV' / i iv -V- U(l f y ^ , \ y 4v f -V 474, a \ ^ f \ '''(- t •»— ; V > ^ <'|-j 1 x-x- X ^ XaX '4. / ?o/ ' * X m ] I' - V 44' 4 > mt . .. I i..- Y'4 4(.i 4 44 . i 4 _ 4; X rV A' 'i li ' f) .A. .. . r \ ' .■-.^ r V L CONTENTS Editorial Notes . . . . . I. A New Subspecies of Poanes massasoit Scudder. By Austin H. Clark . . . . . II. Field Keys to the Lizards and Amphibians of British Guiana. By Stanton C. Crawford . . . 1 . 111. New Species and Subspecies of African Birds. By Rudyerd Boulton A. n , " - y K Publications of the Carnegie Museum Serial No. 152 CARNEGIE MUSEUM VoL. XXI, No. 2. ' ' ■ ■■ p"' 'V- - ^ : V “ April, 1932 r' For sale by Messrs. Wheldon & Wesley, Ltd., 2-4, Arthur St., New Oxford St., London, W. C. 2, England: Messrs. R. Friedlander u. Sohn, II Carlstrasse, Berlin, N. W. 6, .Germany: Maruzen Company, Ltd., 11-16, Nihonbashi, Tori-Sanchome, Tokyo, Japan; and at the Carnegie Museum, Schenley Park, Pittsburgh, Penna., U. S. A. ANNALS OF THE CARNEGIE MUSEUM VOL. XXI, NO. 2. Editorial Notes The thirty-fifth formal celebration of Founder’s Day took place on October 15th, at which time public announcement was made of the opening of the Thirtieth International Exhibition of Paintings under the auspices of the Department of Fine Arts of the Institute. The principal address was made by his Excellency, Governor Albert E. Ritchie, of Maryland. Mr. Ralph Pulitzer was asked by Col. Samuel Harden Church, who presided, to address the audience; but, with that modesty which characterizes him, he only responded with a bow to the presiding officer and to the audience. At a small dinner, attended only by the Trustees of the Institute and the Heads of departments, Mr. Pulitzer was prevailed upon to speak and gave a most interesting account of some of his experiences on the occasion of his expedition to Angola on behalf of the Carnegie Museum. A great deal of the interesting material collected by the Pulitzer Expedition to Angola, giving at least a synoptic view of the results of the expedition, was placed upon exhibition on the lower floor of the Carnegie Museum, where it will remain for a while as a temporary exhibit. The display consists of maps showing the regions visited, photographs of the scenery, and representative specimens of the mammals, birds, reptiles, fishes, insects of various orders, and plants collected. The whole was tastefully arranged, and among other things included is a miniature case showing the Giant Sable Antelope, as it will appear when mounted. In the early evening of Saturday October 31, 1931, it was dis- covered that a fire had broken out in a large switch board which at 57 58 Annals of the Carnegie Museum. the time of the construction of the building had been placed in the room for many years designated as The Laboratory of Mammals. After a vain attempt had been made by Mr. Fulton, the assistant superin- tendent of the building, to extinguish the flames by “hand extin- guishers,” which were available, he sent in an alarm to the Fire De- partment of Pittsburgh, which was quickly responded to. The fire- men distinguished themselves by the speedy manner in which they got the flames under control and also preserved the contents of the room and of the building from damage by water, they having brought with them many tarpaulins which they used with energy and efficiency. The heartfelt thanks of all connected with the Museum and its friends are due to these sturdy firemen for the quick manner in which they acted, thus averting what might have been a catastrophe of con- siderable magnitude. This large switch-board was erected at the time the new building came into being and we have always believed that the building was fire-proof. Unfortunately the doors, which concealed the electric apparatus had been built of mahogany instead of metal. A crossed wire on the switchboard set fire to the door which evidently burned for some time and the heat set fire to two cases, one quite large and the other a smaller one resting upon it. The contents of the larger case on the floor, consisting of skins of bears, of seals, and of walruses, was so badly injured as to make it impossible to use the skins for mounting purposes. They were very badly singed. The contents of the small upper case were partly destroyed. Our chief regret in connection with this case is that a few days before there had been placed in it two trays containing some of the smaller mam- mals collected on the Pulitzer Expedition to Angola, which had not yet been studied, nor reported upon. The loss sustained is greatly to be deprecated, but as Dr. Thomas Arbuthnot so kindly said in a letter to the Director: “I weep not for the loss of the specimens of the Alaskan Brown Bear, which I presented to the Museum, because the species is not extinct, and this may be an argument for my having another hunting expedition.” What is most deprecated by all of us is the loss of over one hundred specimens of small mammals, princi- pally rodents, collected by the Pulitzer Expedition. Among these we had fondly hoped that we might detect possibly some species new to science, for they had been obtained in localities not often visited by zoological collectors. The work of rebuilding the switchboard, which controls the lights Editorial Notes. 59 on the second and third floors of the Museum in the rear, is rapidly going forward, and precautions are being taken, which it is believed will prevent the recurrence of such an accident, not only in this part of the building but elsewhere. Metal and uninflammable doors are being provided not only for the switchboard, which was destroyed, but elsewhere in the building. It is a comfort to reflect that the great collections made by the Pulitzer Expedition with the exception of the small rodents were all in places of absolute safety. We may, however, have to send another expedition to Angola, if the ways and means can be found. On October i6, 1931, at 4:00 o’clock in the afternoon the friends and associates of Mr. and Mrs. Boulton met them in farewell at a tea given in their honor. Mr. Boulton has accepted the Assistant Cus- todianship of Ornithology in the Field Museum of Chicago. While we congratulate Mr. Boulton upon his advancement to a position in which he will be more adequately recompensed for his services, than could be arranged in this Museum with its limited resources, we feel that we are not entirely sundered from him, and we have the assur- ance that he will in due time make to this Museum for publication a full report upon the collections of birds which he made for us in Africa on his previous journeys and upon his last journey with Mr. Pulitzer. On November 2, 1930, Oliver Perry Hay departed this life in the eighty-fifth year of his age. He was born in Saluda Township, Jeffer- son County, Indiana, on May 22, 1846. He was the author of several papers published in the Annals of the Carnegie Museum upon fossil Testudinata, the types of which are in this Museum. His great work upon the fossil turtles of North America, published by the Carnegie Institution of Washington in 1908 will always remain as a monument to his assiduous researches and learning in this special field. But he will probably be more widely known by paleontologists through his Bibliography of Fossil Vertebrates first published by the U. S. Geological Survey in 1902, in one volume of 868 pages, and again issued in revised and completed form in two volumes by the Carnegie Institution of Washington. The first volume, giving the names of authors and the titles of their papers, contains pp. i-viii + i-918; the second volume, pp. i-xiv + 1-1074, gives a systematically arranged 60 Annals of the Carnegie Museum. Catalog of the Fossil Vertebrates of the Continent. To the student these works are indispensable. Besides these great works he was the author of one hundred and ninety-one articles, shorter or longer, upon various subjects in later years relating principally to fossils from various Pleistocene deposits. A list of these papers from the pen of Professor R. S. Lull of the Peabody Museum has just appeared in the Bulletin of the Geological Society of America, Vol. XLII, pp. 34-48. The Editor of these Annals was well acquainted with and prized his friendship with Dr. Hay, which covered nearly the last forty years of Hay’s life. We differed sometimes with each other in our opinions on scientific matters, and sparred with each other in print, but per- sonally our relations were most friendly. In common with his fellow paleontologists the Editor deeply mourns his loss as that of a friend' and most assiduous and capable worker in a difficult field. Peace to his ashes! IV. NEW SPECIES FROM THE OLIGOCENE OF THE UINTA. By O. a. Peterson. It is quite clear that the name “Upper Uinta,” which was used by Peterson and Kay in their publication, Ann. C. M., Vol. XX, pp. 293-305, might in the future be a source of confusion to students. The “Upper Uinta” is a term which was and will be commonly used by geologists and paleontologists in referring to the upper series of the Uinta Eocene, especially “Horizon C.” The name “Duchesne,” suggested by Scott, ^ is therefore proposed for the Oligocene horizon, which rests upon the Upper Eocene (Horizon C) in the Uinta Basin. The Duchesne River in Duchesne County, Utah, has its source on the southern side of the Uinta Mountains. The stream traverses these upper beds, which are now determined to be Basal Oligocene, before its confluence with the Green River a half mile below Ouray, Utah. As stated by Peterson and Kay, l.c. p. 294, the geographical area covered by these Oligocene strata has an east-west extent of ap- proximately eighty miles, and seldom exceeds from twelve to fifteen miles in a north-south direction along the northern margin of the Uinta Basin. From Randlette westward, along the Duchesne river, these Oligocene beds are quite clearly defined from the underlying Uinta series (Horizon C). Peterson and Kay {l.c., p. 295) have al- ready called attention to the fact that “the sandstones weather out to characteristic reddish brown cliffs, which rest on softer clays [Hoti- zon C of the Uinta] along the streams and on the divides between Lake Fork, 'Dry Gulch,’ Duchesne, and the course of other rivers.” Although a tentative division was made by Peterson & Kay between the Duchesne beds and the underlying Uinta strata to the eastward from Randlette, the distinction between the two horizons is not so clear toward the eastern end of the basin. The relationship of the fauna of the Duchesne Oligocene, as now known, is less sharply defined from that in the underlying Uinta 'Since the publication of Annals of the Carnegie Museum, Vol. XX, 1931, Art. XII, pp. 293-305, Professor W. B. Scott of Princeton University has in a letter kindly suggested the name “Duchesne” for the Oligocene formation named “Upper Uinta,” by Peterson and Kay. 61 62 Annals of the Carnegie Museum. sediments (Horizon C) than is usually the casein the superimposed horizons of other localities. There is, nevertheless, an advance cor- responding to that of the lithological change noted. ^ The Titanotheres of the Duchesne Oligocene so far known represent an advance upon those found in Horizon C of the Uinta series. Teleodus uintensis^ is a typical Oligocene form, with frontonasal horns well developed; with two upper and three lower incisors, bearing the characteristic button-shaped crowns found in all the known Titanotheres of the White River Oligocene. The horses, or Anchitheres, and Tapiroids have the lower premolars more like the molars. The Cameloids are very distinctly advanced in the direction of those found in the White River Oligocene. The genus Hycenodon of the eastern Oligocene, not heretofore found in the Eocene of America, is recognized. With this assembly of forms there are, so far found, remains of Anchitheres, Amynodonts, Homacodonts, Agriochcerids, and Mesonychids, as survivors from the underlying Eocene. The Amynodonts have the second lower premolar reduced to vestigial proportions. The Homa- codonts and Mesonychids^ have advanced in their trend of evolu- tion. It is quite safe to say, that, when more complete material is found representing the Agriochcerids and the Oreodonts, they will be found to have similarly advanced. The Duchesne Oligocene of the Uinta Basin may thus be regarded as a horizon quite perfectly transitional between the Upper Eocene and the Chadron horizon^ of the White River series of South Dakota. We were gratified in finding in the Duchesne Oligocene the genus Hycenodon, hitherto not reported from so low a level in the American Oligocene. In this vast deposit of strata, over one thousand feet thick, we have not yet discovered any horizons which abruptly traverse the formation, such as the well known Metamynodon and Protoceras Sandstones; the two latter being stream deposits, which contain sud- den breaks in the Oligocene fauna of the White River Badlands of 2See Annals Carnegie Museum, Vol. XX, 1931, pp. 294-298. ^Annals Carnegie Museum, Vol. XX, 1931, p. 308. ^Annals Carnegie Museum, Vol. XX, 1931, p. 338. ^It should be noted here that the fauna which Mr. Douglass described from the “Sage Creek Beds’’ of Montana, Ann. Car. Mus. Vol. II, 1903. pp. 155-160, is in part probably a later facies than that in the Duchesne Oligocene of Utah. The stratum of the Sage Creek Beds of Montana in which '‘Metamynodon''^ was found might therefore have to be placed between the Chadron of Nebraska- Dakota and the Duchesne series of Utah. Peterson: New Species from the Uinta Oligocene. 63 South Dakota. The evidence of stream-action is abundant in the Duchesne series, but the scarcity of fossil remains through the entire formation precludes at this time any clear comparison with what is known of the Oligocene of Dakota. Of the fossils described in the following pages the fragment of an upper jaw as well as limb bones of HycEnodon were found in 1929 in the Titanothere quarry of the upper Duchesne Oligocene and the fragment of a lower jaw of the Amynodont described in the following pages was found in the same quarry in 1930. The rest of the ma- terial described in what follows was collected in different horizons of the Oligocene of the Uinta Basin by the field-party of the Carnegie Museum in charge of Mr. J. LeRoy Kay in 1931. The illustrations are from drawings made by Mr. Sydney Prentice. Class REPTILIA. Order CROCODILIA. Family ALLIGATORIDT:. Genus Crocodilus. I. Crocodilus (?) acer Cope. A very poorly preserved skull and lower jaws, C. M., No. 11858, discovered near the base of the Duchesne Oligocene in the Uinta Basin, Utah, is provisionally referred to the genus Crocodilus. The specimen was found three miles north of the Leota Ranch in Uinta County. By the liberal use of shellac and extreme care in collecting it was possible to transport this frail specimen from the field to the Museum. For detailed and reliable description this specimen requires an amount of most painstaking and careful work in the laboratory, which cannot be done in advance of the publication of the present paper. From the superficial study, which I have been able to give in the pre- sent condition of the specimen, it appears most nearly like Crocodilus (?) acer Cope® from the ‘‘Manti formation” in central Utah, rede- scribed by Charles C. Mook. ^ The long and comparatively narrow form of the head; the irregularly rounded and anteriorly pointed orbits; the flat surface of the snout (undoubtedly due, in a great measure, to crushing) ; the broad surface between the superatemporal fenestrae and the apparently large infratemporal fenestrae are the ^“Tertiary Vertebrata” 1884, p. 154, PI. XXIII, fig. i, ^Bull. Amer. Mus. Nat. Hist., Vol. XLIV, 1921, p. 117, Pis. XVIII, XIX. 64 Annals of the Carnegie Museum. chief characters, on which I rely for the present identification. The upper and lower jaws are so closely appressed that no idea can be had of the characters or position of the teeth in the present condition of the specimen. The lower jaws are quite slender, there being apparently no such expanse between the alveolar and inferior borders of the rami as in Allognathosuchus, or as in Crocodilus americanus. Fig. I. Top view of skull. Crocodilus (?) acer Cope. C. M., No. 11858, One-fourth natural size. Measurements of Skull. Greatest length, approximately 400 mm. Length from occipital condyle to end of snout, approximately 350 mm. Width opposite orbits 155 mm. Width of snout midway to anterior extremity 86 mm. Width at narrowest part, behind anterior nares 68 mm. Class MAMMALIA. Order CARNIVORA. Family HY.T:NID^. Genus HviENODON. 2. Hyaenodon sp. (?) A portion of a maxillary of the right side, with the two last molars in place (C. M., No. 11770), and a humerus (C. M., No. 11764), is referred to the well known genus Hycenodon of the Nebraska and Dakota Oligocene. The specimens were found in the Duchesne Oligocene together with the great mass of material representing Teleodus iiintensis in the Titanothere Quarry eleven miles west of Vernal. The maxillary represents an animal smaller than Hycenodon Peterson: New Species from the Uinta Oligocene. 65 cruentus, but larger than Hycenodon crucians. With the exception of a well-marked swelling on the external face of the sheering blade, mid- way between the anterior cusp and the posterior limit of the last tooth, the detailed structure of these teeth most closely suggests those of Hyccnodon cruentus. On the last tooth there is no indication of an antero-internal basal tubercle, while on the tooth in front there is a very slight indication of such a tubercle. The maxilla is broken off at the posterior alveolus of the larger tooth and in front of the first molar. Fig. 2. External and crown views of M^ M 2. Hycenodon sp.? C. M., No. 11770. Natural size. Measurements. M 1 length, measurement taken at base of crown 13 mm. M 1 width, at anterior face 7 mm. M 2 length, measurement taken at base of crown 20 mm. M 2 width, at anterior face 7 mm. The right humerus, C. M., No. 11764, represents that of a smaller animal, about the size of Hycenodon mustelinus, though slenderer and relatively less expanded at the head and distal end. As in Hycenodoit the articulation for the scapula faces almost as much backward as proximally. The tuberosities are wide apart, displaying a wide and shallow bicipital groove. The deltoid crest is not prominent. The supinator ridge is low and poorly developed and the external epi- 66 Annals of the Carnegie Museum. condyle is likewise poorly developed, while the inner condyle is large and perforated by the characteristic foramen. The supratrochlear and anconeal fossae communicate by a large foramen characteristic of the genus. The distal trochlea is distinctly typical of Hymiodon and quite perfectly answers the description given by Professor Scott, ^ who states that the trochlea “is divided into three facets, of which the inner one is both the widest and the highest, while the outer one is very narrow; the median facet is a broad and strongly convex [ridge].” Fig. 3. Anterior view of right humerus, HycBnodon sp.? C. M., No. 11764. Natural size. Family MIACIDvF:. 3. Pleurocyon sp. ?. an Uintacyon sp. ?. Included in the small collection found near the base of the Duchesne Oligocene, three miles north of Leota Ranch, are a number of frag- ments, C. M., No. 11850, which are provisionally referred to such genera as Pleurocyon described by Peterson ® or to Uintacyon. The specimens consist of the head of a humerus, a portion of an ulna, fragments of shafts of limb-bones and a number of foot-bones. The first metatarsal of this specimen perhaps compares best with that of Pleurocyon, while the phalanges are apparently more depressed and certainly broader than those in Pleurocyon, but otherwise quite similar in structure. Suborder P ERISSODA CTY LA. Family EQUID^. Subfamily Hyracotheriin^. 4. Epihippus intermedius sp. nov. Type: Symphysis and right ramus of lower jaws with incisors, canine, and P2 and M 3 of adult. C. M., No. 11845. Horizon: Duchesne Oligocene. ^Journal Acad. Nat. Sci. Philad. Vol. IX, 1894, P- 5i3- ^Annals of the Carnegie Museum, Vol. XII, 1919, p. 52. Fetekson: New Species from the Uinta Oligocene. 67 Locality. Uinta Basin, Half-way Hollow, five miles north of United States Highway 40, and one mile south of Vernal-La Point road, Uinta County, Utah. Specific Characters: Antero-internal cusp on P3 single; antero- internal cusp on P 4, on tooth not worn, very faintly twinned; on very slight wear twinning disappears. On M 1 and M 2 twinning of antero- internal tubercle practically the same as on P4; Pi single-rooted. No diastema between P 1 and P 2- Animal slightly larger than Epihippus gracilis. In comparing P2 of the present specimen with fig. 5b, on PI. XVHI, in Granger’s paper on the ‘'Revision of American Eocene Horses” (Bull. Amer. Mus. Nat. Hist. Vol. XXIV, 1908) it appears that the paraconid of Epihippus gracilis ( = uintensis) is less developed and does not turn inward as in E. intermedins. Furthermore, when the lower premolars of the type of the new species are compared with those in a specimen, C. M., No. 3397, referred to Epihippus parvus, it becomes quite apparent that the anterior cross-crests in the latter species are higher than the posterior cross-crests, while in E. mtermedius the anterior cross-crests are no higher than the posterior, exactly the con- dition found in Mesohippus hairdii. P 2 in the latter species differs from that in Epihippus intermedins by having the anterior part of the paraconid turned more inwardly and the posterior part (the cross- crest portion of the paraconid) better developed. The transverse diameter of the premolars in Mesohippus hairdii is also relatively greater than in Epihippus intermedins. These differences together Fig. 4. Crown and side views of right jaw. Epihippus {Duchesnehippus) intermedins Peterson. C. M., No. 11845. Natural size. 68 Annals of the Carnegie Museum. with relatively smaller incisors, a larger canine, a longer diastema between P i add the canine in E. intermedins appear to be the chief differences between Epihippus intermedins and Mesohippns hairdii. When the upper dentition of E. intermedins is found in the Duchesne Oligocene, it is quite safe to predict, that the antero-internal tubercle on P ^ will be much further advanced in its development of molariform structure than it is in EpiJiippns parvns, and that, the fifth digit of the manus in E. intermedins will be found to be considerably more reduced than it is in the species from the lower levels in the Uinta Basin. That Epihippns intermedins may represent a distinct genus is entirely probable. When more satisfactorily determined this new genus may be called Dnchesnehippns. Measurements. Total length of jaw fragment, including incisors 84 mm. Length of diastema between canine and Pi 13 mm. Length of cheek-teeth P 1, M 2 49 mm. Length of P 2 9 mm. Breadth of P 2 at posterior cross-crest 4.5 mm. Length of P 3 8.5 mm. Breadth of P 3 at posterior cross-crest 6 mm. Length of P 4 9 mm. Breadth of P 4 at posterior cross-crest 6 mm. Length of M 1 9 mm. Breadth of M 1 at posterior cross-crest 6 mm. Length of M 2 9 mm. Breadth of M 2 at posterior cross-crest 6 mm. Depth of ramus of P 2 i5-5 mm. Depth of ramus at M 2 19 mm. Superfamily Tapiroidea. Family HELALETID^. 5. Heteraletes* leotanus, gen. et sp. nov. Type: Pair of lower jaws in adolescent stage. C. i\L, No. 11849. Horizon: Duchesne Oligocene, near base of series. Locality: Uinta Basin. Three miles north of Leota Ranch and one mile west of Green River, Uinta Co., Utah. Generic Characters: 1 3, C 1, P?4» M3. P2 with low tricuspid crown, P 3, sub-molariform ; P4 completely *eTe/oo? + (uXijrry? Peterson: New Species from the Uinta Oligocene. 69 molariform; Mi and M2 with cross-crests, anterior and posterior cingulse as in Dilophodon or Helaletes from the Bridger Eocene. The incisors are fan-shaped, the first and second of subequal size, while the lateral incisor is reduced to almost half the size of those in front. The lower canine is rather low-crowned, but of considerable antero-posterior diameter at the base of the crown. The latter rises to a trenchant point. There is a considerable diastema between the canine and the cheek-dentition, which may possibly be slightly ex- aggerated due to the mending of the specimen. P 1 may, or may not, be present. P2 has a comparatively simple crown, consisting of the para-, proto-, and metaconids, the protoconid the larger of the three. The crown of P 3 is almost completely molariform; besides the typical paraconid the crown of this tooth has the two complete cross-crests, as in the molars, and there is a well-formed cingulum on the posterior face. P4 has reached the complete molarization with the two cross- crests and well marked cingulum in front and back. The first and second molars are cross-crested with cingulse in front and back, as in Helaletes or Dilophodon from the Bridger Eocene. M 3 is rather deeply buried in the jaw. Its detailed structure cannot be correctly described. The mandibular rami are quite heavy, deep, and have a strong smyphy- sis, the posterior border of which is opposite the junction between P3 and P4. Not knowing the detailed structure of M 3 the proposed genus is, with the exception of the advanced condition of P3 and P4, most nearly like Dilophodon of the Bridger Eocene, though smaller than the latter genus. Fig. 5. Crown and side views of lower teeth. Heteraletes leotamis Peterson. C. M. No., 11849, Natural size. 70 Annals of the Carnegie Museum. Measurements. Length of jaw, incisors to angle of ascending ramus, approximately 95 mm. Length of cheek-dentition P2, M2 33 mm. P 2 length 4.5 mm. P 2 breadth 5.2 mm. P 3 length 6.5 mm. P 3 breadth 4 mm. M 1 length 6.5 mm. M 1 breadth 5 mm. M 2 length 7 mm. M 2 breadth 5 mm. Family HYRACODONTID^. 6. Genus Hyracodon ? sp. ? To the genus Hyracodon is provisionally referred a femur, C. M., No. 11846, which was found well up in the Duchesne Oligocene of the Fig. 6. Anterior view of femur. Hyracodon^ C. M., No. 11846. One-fourth natural size. Uinta Basin. The bone, though slightly slenderer, compares best with the femur of the larger species of that genus found in the Nebraska Fig. 7. Dorsal view of astragalus. C. M., No. 11855. Natural size. Peterson: New Species from the Uinta Oligocene. 71 Oligocene. The great trochanter, which is relatively slenderer, pro- jects higher above the head than in the eastern form. The latter feature is, however, due mostly to the crushing of the bone. The rotular trochlea is shorter and the condyles are of relatively greater extent vertically than in the eastern species, but this feature may also be due to the distortion of the specimen. An astragulus. No. 11855, found in the same locality and horizon as the femur just described, is also provisionally placed with the genus Hyracodon. Family AM YNODONTIDT:. 7. Mesamynodon medius gen. et sp. nov. Type: Fragment of ramus of the lower jaw of adult animal with portion of root of P2, P3, and P4, together with Mi and M2, C. M., No. 11762. Horizon: Duchesne Oligocene, Upper series. Locality: Uinta Basin. Titanothere Quarry, eleven miles west of Vernal, Uinta County, Utah. Generic Characters: P2 vestigial; proto- and deuteroconid, which form the main cross-crest, relatively low; paraconid and posterior cross-crest high and more completely developed, when compared with Fig. 8. Crown and side views of left jaw. Mesamynodon medius Peterson. C. M., No. 11762. Natural size. 72 Annals of the Carnegie Museum. lower premolars of Amynodon. Molars as in Amynodon, but with cingulum better developed. In excavating the alveolar border in front of P 3 of the type, a por- tion of a shallow alveolus with a small fragment of the root of P2 was found. Judging from this very shallow alveole and the minuteness of the root-fragment this tooth is evidently reduced to a mere vestige in comparison to the already much reduced P2 of Amynodon. In fact the tooth may even be entirely wanting in some individuals, indicat- ing a considerable step beyond Amynodon toward such forms as Aletamynodon of the White River Oligocene. The prominence of the cingulum on both premolars and molars of the present specimen strongly suggests Hyracodon of the Nebraska-Dakota Oligocene, but P3 and P4 are reduced too much in length, to say nothing of the vestigial P 2, to place the specimen with the Hyracondonts: Pro- visionally I therefore place Mesamynodon in the subfamily Amyno- dontince pending the discovery of better diagnostic material. Measurements. Length of jaw fragment 66 mm. Depth of ramus at M 1 31 mm. Length of P 3 13 mm. Breadth of P3 opposite posterior cross-crest 95 mm. Length of P 4 i5 mm. Breadth of P 4 opposite posterior cross-crest 10.5 mm. Length of M 1 17 mm. Breadth of M 1 opposite posterior cross-crest 12 mm. Length of M 2. • • 20 mm. Breadth of M 2 opposite posterior cross-crest 12.5 mm. Suborder ARTIOD A CT Y LA. Family DICHOBUNIDT:. Subfamily Homacodontin.^. 8. Pentacemylus* progressus gen. et sp. nov. Type: Two upper molars of the left side; inner portion of P4; M i and M2 of right side. C. M., No. 11865. Horizon: Duchesne Oligocene, ne'ar base. *7rArtt =five; aKi7 = point; /atA,09 = molar tooth. Peterson: New Species from the Uinta Oligocene. 73 Locality: Uinta Basin, Utah. Three miles north of Leota Ranch, one mile west of Green River. Characters obtained from the type material. Upper molars five- pointed with protoconule well developed; no evidence of the vestigial hypocone on M ^ which is present in Bunomeryx. Cusps of molars distinctly more crescentic than in Llomacodon Marsh, from the Bridger Eocene, Bunomeryx Wortman, and other genera from the Uinta (Horizon C) described later by Peterson. ^ Upper molars of more nearly equal size than those in earlier genera. P4 with well developed deuteroconid and paraconid. Lower molars with slightly more advanced selenodont and hypsodont condition than in genera from the Bridger and the Uinta. With the advanced condition of the cheek-dentition from that of the Homacodonts found in the lower strata there still persists the antero- median tubercle, well developed and entirely separated from the protocone as in Bunomeryx. Furthermore, the para- and mesostyles and the cingulum are even better developed than in Bunomeryx. The well developed meso- and parastyles in Pentacemylus closely suggest Protoreodon, but the latter does not have the heavy cingulum bounding the tooth anteriorly, internally, and posteriorly, as is the case in Pentacemylus. The advanced condition in the lower dentition of Pentacemylus consists chiefly in the greater development of the para- and deutero- conids and of the greater height of the tubercles along the buccal side of the molars, when compared with Plylomeryx, but is more nearly like those in Bunomeryx of the lower horizons. The new genus here proposed evidently stands very close to Buno- meryx of the lower horizons of the Uinta, while Hylomeryx, Spheno- meryx, and Mesomeryx stand perhaps closer to llomacodon. Fig. 9. Crown views of upper and lower teeth. Pentacemylus progressus Peterson. C. M., No. 11865. Twice natural size. 1 “Annals Carnegie Museum, Vol. XII, 1919, pp. 67-76. 74 Annals of the Carnegie Museum. Measurements, M 1 anteroposterior diameter 6.5 mm. M 1 transverse diameter 7.5 mm. M 2 anteroposterior diameter approximately 6.5 mm. M 2 transverse diameter 7.5 mm. P 4, M 2 anteroposterior diameter 19 mm. M 1 anteroposterior diameter 6.5 mm. M 2 anteroposterior diameter 6.5 mm. M 1 transverse diameter 4 mm. M 2 transverse diameter 4 mm. Family AGRIOCHCERID^. 9. Genus Diplobunops (?) sp. ? An upper molar tooth, C. AI., No. 11853, about the size of that of Diplobunops leotensis found well up in the Duchesne Oligocene series in Half-way Hollow, Uinta County, Utah, is provisionally placed in the genus Diplobunops. My principal reason for doing this is the presence of the vestigial proto- conule on the crown of the tooth, the poorly de- veloped posterior horns of proto- and hypocones, and the heavy and obliquely backward directed parastyle, as in the Eocene Oreodonts in general. That the tooth may pertain to a distinct new genus is entirely probable, but I prefer to wait until a more complete specimen is found before adding another genus from this new horizon. Near the base of the Duchesne Oligocene, three miles north of Leota Ranch, Uinta County, Utah, there was found a second speci- men consisting of a fragmentary skeleton, C. M., No. 11848, which is provisionally referred to the genus Diplobunops. The fragments of the upper teeth indicate an animal the size of Diplobunops uintensis. The humerus, femur, and tibia appear to be proportionally lighter and the cnemial crest of the tibia not extending so low as in Diplobunops. The astragalus on the other hand, is low and broad, as in the latter genus. The distal articulation of Mt, IV is not hemispherical on the dorsal face, as it is in Diplobunops, but more nearly like that in Mery- coidodon. The two terminal phalanges present are not high, narrow, and claw-like, as in Diplobunops, nor as much depressed, though fully as broad as in Merycoidodon. The lateral borders of the anterior half of the ungual is expanded near the plantar face, giving the bone a Fig. 10. Crown view of upper molar. ? Diplobunops. C. M., No. 11853. Natural size. Peterson: New Species from the Uinta Oligocene. 75 unique appearance. If this specimen pertains to one individual, the combination of the characters noted would certainly indicate a dis- tinct species of the genus Diplobunops, if not a distinct genus, nearly allied to the latter. The material is, however, in my judgment unsatisfactory to serve as a type. Well towards the base of the Duchesne Oligocene series, three miles north of Leota Ranch and one mile west of Green River, Uinta County, Utah, there were found a few fragments of an Oreodont, No. 11864, very nearly the size of Merycoidodon culhertsoni. I provisionally place this specimen with Protoreodon. The astragalus of the specimen astragalus and cuboid. Pro- ^ , . . . , • , 7 toreodon. ? C. M., No. from Utah is wider than in rProtoreodon 11864. Natural size. medius, but not as broad as in Merycoidodon. Likewise the cuboid is relatively lower than in the latter genus. Al- together the new material, which is too incomplete to be made a type, apparently represents an intermediate form between Protoreodon and Merycoidodon. Family CAMELIDT:. 10. Poabromylus** kayi gen. et sp. nov. Type: Left ramus of the lower jaw with the molar series, including P3 and P4. C. M., No. 11753. Horizon: Duchesne Oligocene, upper series. Locality: Uinta Basin. Titanothere Quarry, eleven miles west of Vernal, Uinta Co., Utah. Generic Characters: Jaw slender ^ C P 2, P3, and P 4, of semiequal length, as in Po'ebr other ium wilsoni. P3 and P4 relatively shorter and thicker; protoconid rounder and higher, and the basal accessories less distinct than in Poehr other ium. There is a diastema in front of P 2 as in Poehr otheruim wilsoni. The molars are relatively shorter and less hypsodont than in Poehrotherium. Animal nearly the size of Po'e- hrotherium wilsoni. **7roa = grass; ^/)0(0 = I eat; /auA.o? = molar tooth. 1 iThe greater part of the inferior border of the ramus is missing, but enough is preserved to determine that the animal had a slender jaw, as in Poehrotherium. 76 Annals of the Carnegie Museum. The diastema in front of P2 is of considerable length (8 mm. from P2 to where the jaw is broken). As already stated P2 is close to P3, the tooth was implanted by two roots, the alveoli of which are directly anteroposterior, indicating an anteroposterior diameter approximately equal to either of the posterior premolars. The protoconid of P3 is rather high and terminates in a round pointed apex. The internal face of the main cusp (protoconid) has near its posterior base a cusp- like rib closely adhering to the main body of the protoconid. To- gether with the external body of the heel this rib on P3 helps to form a fossa which is open behind. Forward and inward from the pro- toconid there extends a sharp blade-like tubercle, which likewise helps to form a vertical shallow groove on the inner face of that por- tion of P 3, not unlike that in Poebrotherium. P 4 is very similar to P 3, except that the posterior heel in P 4 is more pronounced, the plate- like tubercle on the inner face of the protoconid is slightly better indicated, and the anterior blade-like tubercle heavier. Altogether the premolars in Poahromylus are less trenchant than in Poebrotherium. The molars are narrow when compared with the known selenodonts of the Upper Eocene, with the possible exception of Leptotragulus. On the whole the molars, as well as the two premolars just described, are most nearly like those of Poebrotherium wilsoni of the White River Oligocene, though less hypsodont. The lingual face of M 2 and part of that of M 3 are destroyed, but enough remain to determine that, though the inner face of the molars have the vertical grooves and ridges more pronounced than in Poebrotherium, they are on the whole most nearly comparable to those in that genus. A cingulum between the crescents on the external face of the molars is slightly Fig. 12. Crown and side views of dentition and left jaw. Poahromylus kayi Peterson. C. M., No. 11753. Natural size. Peterson: New Species from the Uinta Oligocene. 77 indicated, especially on the first and second molars. The heel of M 3 is fully as large proportionally as that in Poebrotherium wilsoni, but the pillar on the inner face at the junction with the postero-internal crescent in Poebrotherium is in the present form represented only by a tubercle, as in Leptotragulus of the Uinta. Measurements. Total length of the jaw fragment 80 mm. Depth of jaw at posterior part of symphysis 10 mm. Depth of jaw opposite M 3, approximately 18 mm. Length of P 3 8.5 mm. Greatest breadth P3 3 mm. Length of P 4 8 mm. Greatest breadth P 4 4 mm. Length of the molar series 35 mm. Length of M 1 9-5 mm. Greatest breadth of M 1 ^ 6 mm. Length of M2 n mm. Greatest breadth of M 2 approximately 7 mm. Length oP M3 21 mm. Breadth of M 3 anterior crescents 7 mm. The proposed genus, just described, differs from ^^Leptotragulus" profectus Matthew (Bull. Amer. Mus. Nat. Hist. Vol. XIX, 1903, p. 224) by having the posterior internal crests of the premolars less de- veloped and the anterior crests of the premolars less pronounced. Judging from Matthew’s illustration (l.c.) of the lower jaw, P 2 in ^'Leptotragulus" profectus is very probably a smaller tooth than that in Poabromylus kayi. Camelodon arapahovius Granger (Bull. Amer. Mus. Nat. Hist. Vol. XXVHI, 1910, p. 248), differs from Poabromylus kayi by having a diastema between P2 and P3, heavier heels, and the protoconid more nearly in the mid-body of the premolars, and by a more complicated fifth lobe of M 3. The proposed new genus Poabromylus is distinctly further advanced than Eotylopus reedi from the Lower Oligocene of Wyoming and ap- parently cannot therefore be regarded as holding an intermediate position between Protylopus of the Uinta and Poebrotherium of the White River Oligocene. The late Dr. Matthew has pointed out that Eotylopus stands closer to Protylopus of the Uinta Eocene than to ^ ^In the type specimen of Poabromylus kayi this pillar is not well indicated due to the broken surface, but a second smaller specimen, No. 11856, has the inner face of the molars well preserved. 78 Annals of the Carnegie Museum. Poehrotheriiim of the Eastern Oligocene. From present evidence Poahromyhis certainly stands closer to Poehrotherium than to Pro- tylopus. 1 Amer. Mus. Nat. Hist. Vol. XXVIII, 1910, p. 40. ANNALS CARNEGIE MUSEUM, Vol. XXI Plate I. I^S Talus of Bishop Conqlomerote {Mesonychid TH-anohheres Amynodont TITANOTHERE QUARRY Comeloid (Poebromyiusf Hyaenodont / Hyracodqni ? . Y Epihippus tntermedius I Orcodont Prp+itonotheres AgViochdepjds Protoreodonts Turtles etc QUARRY L ANS THORNE QUARRIES f Amynodon intemiedius ? < Protitonottierium emarjino I Oiplacodon elolus Telmathenum ultimuin Prothyrocddpn Isec4olopus Cpihippus Rodents . Leptoreddonts Eotitanotherium osborni Dolichorhininoe Rhodinorhininde Eobosileids Monteocerqtinae Achoenodonts Mesonychids Turtles Crocodiles Hyrachyus Limnocyon Telmothcres ^Protoreodont ^5ca/c’ COLUMNAR SECTION OF HORIZONS A.B.C. AND DUCHESNE OLIGOCENE Revised from plates lo and ii, by Peterson and Kay. Ann. C. M. Vol. XX, V. A NEW ARCTIC WEASEL FROM SOUTHAMPl^ON ISLAND, HUDSON BAY. By George Miksch Sutton and William J. Hamilton, Jr. In studying the mammals collected by the senior author at South- ampton Island, Hudson Bay, during 1929-1930, we find that the series of twenty-one weasels belong to an undescribed race of Mustela arctica. This form may be described as follows: Mustela arctica semplei^ subsp. nov. Type. — Male, adult. No. 6470, Carnegie Museum Collection, taken at Coral Inlet, South Bay, Southampton Island, October 8, 1929, by George Miksch Sutton. Original Field-Catalog Number: 3M. Diagnostic Characters : Considerably smaller than Mustela arctica arctica. General coloration that of the arctica-gvoup, but in summer upper lips white as in Mustela cicognani, and a small, but distinct, post-orbital white spot in most specimens. Skull as in arctica, but zygomata not so strongly bowed outwardly. Average measurements^ of twelve adult males in the flesh: Total length, 283 (324-267); tail, 78.5 (94-64); hind foot, 39.6 (43-38). Average measurements of seven adult females in the flesh: Total length, 260 (288-250) ; tail, 70 (74-63) ; hind foot, 35 (38-33). The average measurements of four adult male ^The name semplei is given in honor of our friend, Mr. John Bonner Semple, Trustee of the Carnegie Institute, and in recognition of Mr. Semple’s personal interest in geographical and zoological explorations of the North Country. ^Unfortunately our specimens, with two exceptions, were measured in the field to the end of the fur on the tail. By measuring this tip or “brush” and sub- tracting this figure from that for the total length and that for the tail, we have obtained corrected measurements, which we feel are reasonably trustworthy. It is significant that these corrected tail-measurements (average for corrected tail measure- ments of 12 males: 78.5 mm.; of 7 females: 70 mm.) agree surprisingly well with the tail-measurements of two specimens in which the tail vertebrae only were measured in the field (male, Carnegie Museum No. 6470, tail: 72 mm.; and female, Carnegie Museum No. 6472, tail: 69 mm.) 79 80 Annals of the Carnegie Museum. Miistela arctica arctica from Point Barrow, x'\laska, listed by Stone^ are as follows: Total length, 376.5; tail, 134; hind foot, 45.7. These specimens were obviously measured to the tip of the tail hairs, and the total length and tail measurements are not, therefore, strictly com- parable to these same measurements given above for semplei. We find that the “brush” at the end of the tail in fourteen adult semplei from Southampton Island measures 46 mm. Taking this as an average length of the “brush,” and subtracting it from the averages of Stone’s specimens, we obtain the following corrected measurements for the Point Barrow animals: Total length, 330.5; tail, 88;^ hind foot, 45.7. Merriam’s^ type of arctica, an adult male from Point Barrow, Alaska, measured from a dry skin, is said to have the following measure- ments: “Total length, 380; tail vertebrae, 75: pencil, 55; hind foot, 48 (at least 50 in the flesh).” The total length of this specimen prob- ably was obtained by measuring to the tip of the tail hairs. It will be noted from a comparison of these measurements with those of semplei that the Southampton Island form is appreciably smaller than that of Alaska. Coloration of Mustela arctica semplei. Summer pelage: Upper parts brown (a shade somewhat between Dresden hrown^ and Prout' s brown) with a somewhat yellowish cast resulting from the color of the under fur, and lighter in general appearance than in Mustela cicognani. Upper lips, chin, upper throat, sides of cheeks, toes, and small post- orbital spot, white; rest of underparts, including practically all of fore feet, distal half and inner half of hind feet and a distinct line on the under side of the tail extending almost to the black tip, pale yellowish white, ranging from pale chalcedony yellow to pale straw yellow and sulphur yellow, brightest on the sides of the lower neck and in front of ^Stone, Witmer. 1900. Report on the Birds and Mammals collected by the Mcllhenny Expedition to Point Barrow, Alaska. Proceedings of the Philadelphia Academy of Natural Sciences, Vol. 52, pp. 44. ■^This “corrected measurement’’ is probably somewhat high, since the 46 mm. subtracted in obtaining this figure is the average length of the “brush” in a race, which is admittedly smaller than M. a. arctica. We might have used Merriam’s figure for this “pencil” (55 mm.) had we been certain that this “pencil” included only the distance from the end of the last caudal vertebra to the tip of the longest hairs. ^Merriam, C. Hart. 1896. North American Fauna No. ii, Washington, D. C., p. 16. ‘’All underlined words descriptive of colors in this paper are from Ridgway’s Color Standards and Nomenclature. Sutton & Hamilton: New Weasel of Southampton Island. 81 the fore feet, and palest on the breast and inguinal region; terminal half of the tail, black. Winter pelage: White all over, except terminal half of tail, which is black. The base of the tail, the hind legs, and to a lesser extent the fore legs are suffused with clear sea foam yellow. Specimens examined: Twenty-one, all from Southampton Island; eighteen from Coral Inlet, South Bay, the type locality; one from Native Point; one from Prairie Point, and one from Ranger or Kash- igiak River, near Cape Low. Range: Southampton Island, so far as known. A more extended discussion of this animal will be included in the paper upon the mammals of Southampton Island which we are now preparing. TABLE OF CRANIAL MEASUREMENTS OF MUSTELA ARCTIC A SEMPLEl FROM SOUTHAMPTON ISLAND, HUDSON BAY. Adult Males. Breadth Foramen Carnegie Inter- across Magnum Museum Greatest Basal Palatal Zygomatic orbital Post-orbi- to last Number Length Length Length Breadth - Breadth tal Process Molar 6470 40.6 37 16.7 24.5 10.7 12.5 25 6478 37.1 34 14 20.7 9.4 12.2 23 6493 42.3 38 17 22.5 11 13.3 26 6499 40.8 37.4 16.1 22.9 10.9 14.1 25.6 6537 42.7 39.3 17 23 10 12.4 26.5 6569 39.6 36 16 22.6 10 12 25.4 6570 39.5 36 15.5 23.2 10.8 13.4 24.9 6588 39.7 36 16.3 23.8 10.2 12.2 24.9 6599 41 37.2 16.4 23.7 11 13.4 25.7 6605 38.7 36 16 22 10 12.5 24 6691.. 42 38.5 17 25.6 11 26.1 Average for 1 1 males . . . 40.3 36.8 16.4 23.1 10.4 12.8 25.2 Adult Females. 6472 14.6 20 9.7 11.9 6484 37'.6 34' ' 15 20 9.4 12 23.' 8 6547 37 34.6 14.8 21 10 12.2 24 6600 38.4 35 15 21.9 10 12 24.7 6689 36.9 33 14.2 22 9.5 12.8 22 6690 35.9 32.7 14. 1 21.4 9.6 11.7 22 . 7 Average for 6 females. . . 37.6 33.9 14.6 21.1 9.7 12.1 23.4 TABLE OF CRANIAL MEASUREMENTS OF MUSTELA ARCTICA ARCTIC A. Males. Point Barrow, Alaska (Merriam) 44.5 20.5 29.5 12.5 14.5 29 Franklin Bay, Arctic Coast (Merriam) St. Michaels, 43.5 19.5 27.5 11 13 28.5 Alaska (Merriam) 43 26.5 12 13.5 28 Alaska (Stone) 44 is' ' Female. 11.8 15 29 St. Michaels. Alaska (Merriam) 38 16.5 22.5 10 12 24.5 VI. A SYNOPSIS OF THE GENUS METROBATES UHLER. (Hemiptera: Gerridae). By C. J. Drake and H. M. Harris. (Plate II) Water-striders of the genus Metrohates, subfamily Ilalobatince, family Gerridse, have the body comparatively short and broad and the inner margins of the eyes convexly rounded. From other haloba- tinoid genera they may be distinguished by the somewhat flattened body and the characters of the antennae and legs. The antennae are almost as long as the entire body, segment I being nearly as long as, or even a little longer than, the remaining three segments taken together. Sometimes individuals of the same species show a slight degree of variation in lengths of both antennae and legs. The first segment of the anterior tarsus is very short, being only about one- fourth of the length of the second. In addition the femora of the hind legs are about twice as long as the tibiae, and also are much longer than the femora of the middle legs. The front legs are much shorter and stouter and somewhat hairy. The first tarsal segment is beset beneath with a row of five to ten long setaceous hairs, which are progressively shortened from the base to the apex. The species of Metrobates exhibit a marked degree of both sexual dimorphism and pterygodimorphism. In the males the antennae are stout and bear special structures and clothing, whereas they are com- paratively simple in the females. The more strongly developed armature of the second and third antennal segments and the row of very long bristly hairs beneath on the first in all five species, and also that of the front femora in denticornis (Champ.) and that just in front of the middle legs in spissus, sp. nov., represent special structures peculiar to the male sex. Alate individuals are known in four species and probably occur in the other members of the genus. In Metro- bates, as in a number of other genera of Ilalobatince, the wings are frequently mutilated, being broken off near their bases by the in- sects themselves. This deflating operation takes place in both sexes and as a result many specimens in collections have artificially shortened 83 84 Annals of the Carnegie Museum. wings with truncate and ragged tips. In the five known species, in- cluding the two described below as new, the male claspers are very distinctive and reliable specific characters. As the essential char- acters of Champion’s Trepohatopsis are the same as those of Metro- hates the writers are here considering the two groups as synonymous. In habits the members of the genus are gregarious. They are con- fined entirely to the surface of inland waters, inhabiting lakes, creeks, and rivers; and probably being more at home in the quiet waters of the broad expanses of slow-moving streams and in secluded coves of lakes. Although not uncommon, they are decidedly local in occurrence, but do not live in such compact schools as do the Rhagovelice. On the smaller lakes M. hesperiiis Uhler may sometimes be found in immense numbers, the surface being densely populated over a considerable area b\' imagoes and nymphs. For food, they prey largely upon insects, which chance to fall into the water. Very little is known regarding the breeding and hibernating habits and life-cycle of the members of the genus. This paper is based upon material belonging to the Carnegie Mu- seum, the U. S. National Museum, and the writers. The writers are indebted to Mrs. E. L. Travis for the illustrations. As the structure of the thorax is quite different in the winged and wingless forms of the same species, and as both forms are very infrequently represented in a single collection, the characters used in the key to distinguish the different species apply equally well to either alate or apterous males. Except for M. hesperiiis and spissits the structural characters of the females are too comparative for satisfactory keys. The females, however, may be readily identified by comparing with determined sjiecimens, and checking with the descriptions. Genus VIetrobates Uhler, 1871. Haplotype, M. hesperiiis Uhler. Meirobales Uhler, Proc. Bost. Soc. Nat. Hist., XIV, 1871, p. 108; ibid., XIX, 1878, p. 437; Kirkaldy, Trans. Amer. Ent. Soc., XXXII, 1906, p. 155; Kirkaldy and Torre-Biieno, Proc. Ent. Soc. Wash., X, 1908, p. 210; Torre-Bueno, Trans. Amer. Ent. Soc., XXXVII, 1911, pp. 246 and 249; Hungerford, Sci. Bull. Univ. Kan., XXI, No. 17, 1919, p. 113; Van Duzee, Cat. Hemip., 1917, p. 430; Torre- Bueno, Conn. Geol. & Nat. Hist., Surv., Bull. 34, 1923, p. 662; Blatchle^", Heter. of E. N. Amer., 1926, p. 986. Trepohatopsis Champion, Biol. Centr.-Amer., Rhynch., 11, 1898, p. 158. Drake & Harris: Synopsis of the Genus Metrobates. 85 KEY TO SPECIES A'IALES 1. Anterior femora armed below near the middle with a stout downwardly pro- jecting tooth, fig. 3; male clasper as in fig. . M. denticornis (Champ.) Anterior femora unarmed; male claspers different 2 2. Mesosternum just in front of the middle legs armed with a stout, slightly recurved, downwardly projecting spine-like tubercle, fig. ih\ male claspers as in fig. /^d M. spissns, sp. nov. Alesosternum unarmed; male claspers different 3 ,3. Intermediate femora and basal portion of tibiae densely clothed within with long hairs; second segment of antennae one and one-half times as long as four, fig. 2a; male claspers as in fig. 4a M. hesperius Uhler Intermediate legs clothed only with pile; second antennal segment scarcely longer than fourth, the third distinctly shorter , 4 4. Male clasper long, strongly curved inwardly, somewhat blade-like, pointed, as in fig. 4c M. triix (Torre-Bueno) Male clasper short, widest at apex, as in fig. 4c M. cuhanns, sp. nov. Metrobates hesperius Uhler (PI. II, figs. 2a and /\a) Metrobates hesperius Uhler, Proc. Bost. Soc. Nat. Hist., XIV, 1871, p. 109; ibid., Uhler, XIX, 1878, p. 438; Uhler, Stand. Nat. Hist., II, 1884, p. 271; Van Duzee, Can. Ent., XXI, 1889, p. 6; Torre-Bueno, Jour. New York Ent. Soc., XHI, 1905, p. 41; Torre-Bueno, Trans. Amer. Ent. Soc., XXXVII, 1911, p. 249; Torre-Bueno, Can. Ent., XLIII, 1911, p. 228; Parshley, Psyche, XXI, 1914, p. 144; Osborn and Drake, Ohio Jour. Sci., XV, 1915, p. 504; Hungerford, Sci. Bull. Univ. Kan., XXI, 1919, pp. 114 and 119; Parshley, Bost. Soc. Nat. Hist., Vn, No. 14, 1917, p. 108; Parshley, Bull. Brook. Ent. Soc., XV, 1920, pp. 67-70; Parshley, Bull. Brook. Ent. Soc., XXIV, 1929, pp. 157-160; Drake, Tech. Pub. No. 16, N. Y. State Col. For., 1922, p. 81; Blatchley, Heterop. E. N. Amer., 1926, p. 980. Halobatopsis beginni Ashmead, Can. Ent., XXIX, 1897, p. 56. x-\ntenn3e long, black, the basal portion of first segment yellowish brown; first segment a little longer and distinctly stouter in male than in female; second segment one and one-half times as long as the fourth, entirely black. Rostrum more densely clothed with long hair than in the other species. Color somewhat variable, especially the gray or bluish gray markings in the apterous form. Winged form darker, blackish brown, the anterior lobe of pronotum with an orange spot, the bluish stripes wanting. Length (apterous), 3.40-4.50 mm.; width, 1.70-2.35 mm. Winged form broader and about 5 mm. long. The wingless form is the com- moner. References to figures all refer to PI. II, of this volume. 86 Annals of the Carnegie Museum. This is the commonest and most widely distributed member of the genus. It may be readily recognized by the characters given in the key. It should also be noted that the antennae are stouter and longer in hesperiiis, also the first segment in the male is densely clothed beneath with hairs. In the streams and lakes of Eastern North America it is to be not infrequently found in association with species of Trepohates and Rheiimatobates and occasionally^ with Tenagogoniis, Gerris, and Rhagovelia. Specimens have been examined from Maine, New York, New Jersey, Massachusetts, Rhode Island, Maryland, North and South Carolina, Pennsylvania, Ohio, Michigan, Indiana, Illinois, Iowa, Nebraska, Missouri, West Virginia, Tennessee, Alissis- sippi, Louisiana, and Ontario, Canada. Dr. H. M. Parshley has shown that IL beginii is not a composite species, but represents only the nymphal stage of M. hesperius. Metrobates cubanus, sp. nov. (PI. II, Figs. 2c, 4c). Smaller than the other members of the genus. Apterous form black, with bluish gray markings, sometimes with the broad median stripe of mesonotum not reaching to hind margin. Body not so strongly flattened nor as strongly widened anteriorly as in spissiis, in this respect about the same as hesperins; the underside bluish and clothed with short hairs. Antennae (PI. II, fig. 2e) shorter and slenderer than in hesperins, blackish, the basal portion yellowish brown; seg- ment I slightly curved at the base, obliquely truncate at the apex, clothed beneath with one long hair, segment III shortest. Anterior legs brownish black, clothed with numerous setaceous hairs, the apex of tibia somewhat enlarged and produced into a prominent tubercle within. Intermediate legs clothed only with dense pile. Pronotum in alate form large, tumid, depressed in front, rounded behind, almost subtruncate at the middle, the humeri prominent. In apterous form pronotum small, broadly depressed in the middle and there grayish or yellowish brown; mesonotum large, sinuate behind. Last venter almost twice as long as the preceding, yellowish brown at apex. First genital segment of male tumid and blackish above, distinctly de- pressed on each side and yellowish brown beneath; the clasper short and very distinctive (fig. 4c). Female larger and broader than male. Length, 3.41-3.62 mm.; width, 1.61-1.92 mm. Ilolotype: dealated male and allotype, apterous female and two paratypes, apterous males, Baracoa, Cuba, Aug. 1901, collected by Aug. Busck; types in collection of U. S. National Museum. In general facies this species seems closest to hesperius, but the legs lack the hairy clothing characteristic of that species. As in other Drake & Harris; Synopsis of the Genus Metrobates. 87 members of the genus the first antennal probably bears several long setaceous hairs, but these except one, seem to be broken off in the specimens at hand. Metrobates trux (Torre-Bueno) (PI. II, Figs. 2c and 4c). Trepobatopsis trux (Torre-Bueno), Ent. News, XXXII, 1921, p. 274. Antennae moderately stout, long, black, the basal portion of the first segment and sometimes of the second yellowish brown. Male clasper as in fig. 4c. Bluish color markings slightly variable. Winged form larger and brownish black. Length, 4.00-5.00 mm.; width, 2.20-2.70 mm. Originally described from specimens collected on Yampa River, Northwestern Colorado. The writers have a very long series of specimens from Corvallis, Oregon, and Parma, Idaho, also several winged and apterous examples from New Braunfels, Texas, June 22, 1917, collected by Dr. H. H. Knight. The latter differ from the Oregon and Idaho specimens in having the basal portion of the second antennal segment yellowish brown. ^ The types in the collections of the University of Kansas and Mr. J. R. de la Torre-Bueno have been studied. The male of this species is easily recognized through the absence of the special armature or clothing peculiar to the male of each of the other species, except cuhaniis. From the latter it differs especi- ally in the slightly swollen front femora and shape of the clasper. Metrobates denticornis (Champion) (PI. II, Figs. 3, 2&, 4&). Trepobatopsis denticornis Champion, Biol. Centr.-Amer., Rhynch., II, 1898, p. 158, PI. IX, fig, 26, 26a; Drake and Harris, Ohio Jour. Sci., XXVIII, 1928, P- 273. Antennae moderately slender, black, the base of first and the proximal two-thirds of the third yellowish brown; segments II and IV subequal. Anterior femora of male armed on the lower edge a little before the middle with a very stout projecting tooth. Male claspers as in PI. II, fig. 4&. Winged form darker and broader than apterous. Female larger and broader than male. Bluish marking somewhat variable in apterous form. Length (apterous), 3.50-4.00 mm.; width, 2.00-2.20 mm. Winged form about 5 mm. long. This species was described from Mexico. Specimens are at hand from Texas, New Mexico, Mexico, and Guate- mala. 88 Annals of the Carnegie Museum. Metrobates spissus, sp. nov. (PI. II, Figs, la and h, 2d, 4c?). Size, color, and marking very similar to other members of the genus; ground-color black, with bluish gray markings and stripes, the head and pronotum usually with orange spots. Antennae (fig. 2d) long, moderately stout; segment I black, the basal portion yellowish brown, beset beneath with a row of extremely long setaceous hairs, stouter and longer in male than in female; II with basal third brownish. Anterior legs shorter and stouter in male than female, black, the coxae, trochanters, and basal portion of femora yellowish brown. Middle and hind legs entirely black. Mesosternum in male armed a little in front of coxal cavities with a stout, moderately long, pointed, slightly recurved, downwardly projecting, spine-like tubercle (fig. ih). Body broad, robust, strongly flattened, black, the bluish gray markings variable as in other members of the genus. Head black, tumid, with two oblique brownish spots near the base. Eyes large, black, extending beyond the sides of the pronotum. Pronotum strongly depressed on the disc, the slate-gray stripe frequently re- placed by a large orange spot. Alesonotum very large, with a deep, line-like median groove, very deeply excavated in front, and strongly sinuate behind, its sides almost parallel and in front nearly touching the eyes. Coxal plates and metanotum marked with slate-gray. Venter slate-gray, the apex of last segment being yellowish brown. Female broader and more robust than male; last venter about as long as the two preceding, broadly and roundly emarginate; first genital segment beneath very strongly depressed, the clasper very distinct, fig. /[d. Length, 3.60-4.00 mm. ; width, 2.00-2.20 mm. Punta Gorda, British Honduras, 41 specimens. Holotype (male) and allotype (female) in collection of authors. The characters used in the key separate this species at once from any known form. It is the only species having the sternum armed in the male (PI. II, fig. ih.). The antero-lateral sides of the mesonotum are more strongly produced, the body dis- tinctly more flattened, and the sides of the mesothorax (PI. II, fig. in) are more nearly parallel than in any other species of the genus. Telmatometra whitei Bergroth and Potomohates liorvatlii Esaki, both in the apterous form, were taken in asssociation with this very dis- tinct and easily recognizable species. ANNALS CARNEGIE MUSEUM, Vol. XXL Plate II. Fig. I. a. Metrohales spissiis, sp. nov., dorsal aspect of male; b. Side view of mesosternum showing acetabular spine. Fig. 2. Antennae of males; a. Adetrobates hesperius Uliler; h. Ad. denticornis (Champion); c. Ad. Iriix (Torre-Biieno) ; d. Ad. spissus, sp. nov.; e. Ad. ciihaniis, sp. nov. Fig. 3. Front leg of Adetrobates denticornis (Champion). Fig. 4. Right claspers of males: a. Adetrobates hesperius Uhler; b. Ad. denticornis (Champion); c. Ad. trux (Torre-Bueno) ; d. Ad. spissus, sp. nov.; e. A'd. cubaniis, sp. nov. VII. A NEW SPECIES OE DELOCRIXUS. By J. J. Burke, (Plate III) Some years ago, while making a collection of Pennsylvanian in- vertebrates from the Conemaugh formation in West Virginia, I found some dorsal cups of an interesting little crinoid, apparently repre- senting an undescribed species. Since that time, collections from the same horizon in Pennsylvania have yielded some additional material, and the following description applies to the specimens at hand. I am indebted to Mr. Sydney Prentice for the drawings from which the illustrations which accompany the description were taken. CRINOIDEA. POTERIOCRINIDyE. Genus Delocrinus Miller and Gurley. Delocriniis allegheniensis Burke, sp. nov. (Plate III, Figs. i-5b.) Type: A well preserved dorsal cup, C. M. No. ,4947. Cat. Eoss. Invert. Paratypes: Three dorsal cups, C. M. Cat. Foss. Invert. Nos. 4945, 4946, 4948, and a dorsal cup with four primaxils, the special anal plate missing and the two radial plates on the right side rather badly weathered, C. AI, Cat. Foss. Invert. No. 4949. Horizon: Ames limestone, Conemaugh formation, Pennsylvanian. Localities: The type, C. M. No. 4947, and paratypes C. M. Nos. 4945 and 4946 from Painter Hollow, near Wellsburg, West Virginia. Paratype C. AI. No. 4948 from Schenley Park, Pittsburgh, Penn- sylvania. Paratype C. AI. No. 4949 from Brilliant Cut-off, Pittsburgh, Penn- sylvania. Dorsal cup small, basin-shaped, base sharply impressed upward within the body cavity. Diameter about three times the height, greatest diameter about two-thirds the height from the base. Plates 89 90 Annals of the Carnegie Museum. smooth, tumid, rather massive, impressed at the corners. Sutures depressed. Infrabasals apparently small and concealed by the proximal facet for the insertion of the column. Basals five, equal in size and pentagonal, except for the posterior, which is larger than the others, elongated, hexagonal, and truncated for the reception of the special anal. These plates are a little longer than wide, and sharply incurved below to form the impressed base. In this incurved area each plate has a slight mesial concavity. Beyond this region they are gently convex until the lower extremities of the radials are reached, superior to which place the basals become tumid, bulging outward strongly, their apical sides forming spherical tri- angles. Radials five, pentagonal, about one-third wider than high, except for the two flanking the special anal, which lack the width of the other three. At their inception, the radials are less convex than the adjacent portions of the basals, but become quite tumid a little above the mid- point of their height. The upper outer surface of each plate is beveled and concave. Superiorly, the radials are truncated and bear facets for articulation with the primaxils. The special anal is hexagonal, one-half or less than one-half its total length projecting above the radials. It is a little higher than wide, strongly incurved superiorly, truncates the posterior basal and is inserted between the right and left posterior radials. Primaxils five, pentagonal, about two-thirds wider than high, their lower surfaces faceted for articulation with the radials and their upper surfaces faceted for articulation with the sectmdibrachs. They are produced outward to form a rather slender spinous process. The sutures between the plates of the dorsal cup of D. allegheniensis are reminiscent of those found in D. texaniis Weller, which have been described as “slightly impressed, especially the lateral sutures of the basal plates and at the distal extremities of the same plates.”^ In D. allegheniensis, however, the sutures appear to be more deeply impressed than in the latter species, while the corners of the plates show small indentations, considerably deeper than the impressions between the sides of the plates. In the spherical-triangular outline of the apical sides of its basal plates D. allegheniensis also resembles ^Weller, Stuart, “Description of a Permian Crinoid Fauna from Texas.” Jour, of Geol., Vol. 17, (1909), p. 627. Burke, J. J.: A New Species of Delocrinus. 91 D. texaniis. On the other hand, the species under discussion is of smaller size than D. texanus, does not have the broad basal excavation characteristic of the latter species, has more convex basal and radial plates, is constricted at the summit of the radial plates and has a special anal plate relatively larger than that which occurs in D. texanus. In addition to the characters enumerated above, the lack of ornamentation on the dorsal cup, together with the presence of spinous primaxils, should serve to distinguish D. allegheniensis from other members of the genus. Measurements. Type Paratype Paratype Paratype Paratype No. No. No. No. No. 4947 4948 4946 4945 4949 Entire height of dor- sal cup 4.9 mm. 3.7 mm. 5 mm. 4.5 mm. 4.8 mm. Greatest diameter of dorsal cup 12.4 mm. 1 1.8 mm. 12.8 mm. II. 6 mm. 14 mm. Diameter of dorsal cup at summit of radials 10.8 mm. 10 mm. 12 mm. 10.8 mm. 12 mm. (app.) 92 Annals of the Carnegie Museum. EXPLANATION OF PLATE III. All figures X2. DELOCRINUS ALLEGHENIENSIS Burke, sp. nov. Figs, i, la, ib. Dorsal, lateral and ventral views of a paratype, a worn dorsal cup C. M. No. 4945. Ames limestone, Conemaugh formation. Painter Hollow, near Wellsburg, West Virginia. Figs. 2, 2a, 2b. Dorsal, lateral and ventral views of the type, a well-preserved dorsal cup C. M, No. 4947. Ames limestone, Conemaugh formation, Painter Hollow, near Wellsburg, West Virginia. Figs. 3, 3a. Dorsal and lateral views of a dorsal cup with two primaxils nearly in place. Two other primaxils are contained in the matrix on the ventral side. The special anal plate is missing and the right posterior radial, together with the right anterior radial is badly worn. Parat^-pe C. M. No. 4949. Ames limestone, Conemaugh formation. Brilliant Cut-off, Pittsburgh, Pennsylvania. Figs. 4, 4a, 4b. Dorsal, lateral and ventral views of a paratype, a slightly worn dorsal cup C. M. No. 4946. Ames limestone, Conemaugh formation, Painter Hollow, near Wellsburg, West Virginia. PTgs. 5, 5a, 5b. Dorsal, lateral and ventral views of a paratype, a dorsal cup, the ventral side showing wear. C. M. No. 4948. Ames limestone, Cone- maugh formation, Schenley Park, Pittsburgh, Pennsylvania. Plate III. ANNALS CARNEGIE MUSEUM, Vol. XXI. Delocrinus allegheniensis Burke. «■ V 'S/';. _ i'^S; / ••’ /: '.n' ..;a ’ ■^- r ' . /-'• \u ■ a' ^ V, ' \y y^ - i^f-' cA'ivtQ, ■a; r A. ' '■ V.- y., (■ ■ xA' • - '■ •'-- .'V. r>'‘- :. 'i."' A A- V '-vaAa- >A:‘-^-;:' ). . , .' '■' -I ■ I ^'' ' ' # ■ S '. V A .'A. A w, S' fe='^:SA-A^'".^ A '■WAS''. f i. 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'A' >V' >A, .A' 1- " 'i ^ /''-A^A',, A •< -J'-^- ^‘-a-aa=-aa,,a.. ;-.'p '■•vV: 'A ^ A ■00 000000 0 00':’'^^f-''’'0y'00'^ 0-j: A'^- .jAA- f '■,V ' 'M-0:-:M0'' 0:- ':0:..' r 0 aTa , I' m0-- 0, 0,- y 00'i; 0:::^'0A)'^ ;. 'i. ^ ;Aa '■ 0>M 0yy . A•S^ •■A -.. m f , ' ’/'■> .,y7p..yy?y:AAAr,.^ ' ?''AAyr,, p. 000-0r y-'ST .'TAA'iA./A. A) r .y: i 00 J ;A A 7 00-:':0"0 A- Xi'. : .A A-'Vr, ■; ' A c;^ ; rAA;."' VA- -.7 'AS 'AV A. > , , ,, .'“A- -s' - ’aA}' V ^ * c TENTS Editorial Notes .. .. .. .. .. .. 57-60 IV. New Species from the Oligocene of the Uinta. By O. A. Peterson. PL I „ .. .. .. .. 61-78 V. A New Arctic Weasel from Southampton Island, Hud- son Bay. By Geor6e Miksch Sutton and William J. PIamilton, Jr. .. .. .. 79“8i VI. Synopsis of the Genus Metrobates Uhler (Hemiptera: Gerridae). By G. J. Drake and H. M. Harris. PI. II. .. .. .. .. _ .. .. .. .. .. , ' .. 83-88 VII. A New Species of Delocrinus. By J. J. Burke. PL III. 91-94 Serial No. 157 CARNEGIE MUSEUM VoL. XXI, No. 3. September, 1932 I . For sale by Messrs. Wheldon & Wesley, Ltd., 2-4, Arthur St., New Oxford St., London, W. C. 2, England: Messrs. R. Friedlander u. Sohn, II Carlstrasse, Berlin, N. W. 6, Germany: Maruzen Company, Ltd.^, 11-16, Nihonbashi, Tori-Sanchome, Tokyo, Japan: and at the Carnegie Museum, Schenley Park, Pittsburgh, Penna., U. S. A. '"l ‘ ’. »'W i,' ■■ . '■ 'M f'.. !,■"('' ’ ' ' : : M'-' ' ' ' I-:, ''■--s , ■ • , - '-si A ', "A-. ',■ «':'7 X a;/- ; ■ Ai ■•?■:■'' -r yyj yi.-r- , "/:? ■■.. . * ' ' ' f ■ - j\' > ' ' A /; k . , .'v ' "ri, 5'-^' \ .,A-i Y/ ■;- ‘ ^ ■ :■■ r.v '; Ay: 'A' •'■■'A-’y y 'A-.‘ ■-.,f/,'i' ■' ■ ' ■' X y> ': f '? AAA' ■'X'^’r' AAi AA >'■ 4 ■" '" r.v;XtA'XAx4-Y,J' I'i';. ,'X' * 1 ' ,,- -w, ^’!!.; My - A '% 'X ' ' 'V'”'i' -'■* / A{,/, r ^ ' ,'aY .',' ' i ' ' I '-). -^ < '4 .^'' '" ' '(<- ‘“'X /r.. ■.(fcJ , 'Y -X ;X • , C’Xi® '■ 4,.^ W’ \ fy \ ; . 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A , 4/-' ^ f A'/'V', ^ AA' 4 A 'A' A^> A X I — yA^ '/aA^'x/ -h ..AA44-''; x , •> • ri4,‘^'Ai f ^ 4’*^^ /Y. ' r-'4-^A.4 >lA^ \t >. A'' rfA\f '\ A ' V' • A X ■' X'i XAX' ’' A^x.-:v X' X^At'":'- Y ; -y A. a.m, , -*,.( A , . .A y'\A, • V /A!' 'x^' A' 4 >'' 4 ^ Vh A A, XaM'AX-^ 'X ' kx ,, - " XA ’A^AS ^ 'a,' ' ''V'X' X'AA-y' ^ '^Ai '.X'X '-y., .V\X y'-, £ Y X-f'X ypXyY 4,A>: 'X '4 4' •\-A\'":'a[ /XX,”' ’/A,, A^A ;4'^XXv \X, , Ax " TAa .'A'X A A fV'X XX XA'XxVr ' 4. f XXV-; ^ . k A ^A 'A • A, A A'AAIAA-,,'’ .^, 't 4- Y..--/;.l, , Y.^. ;,. ,, , . i/4,V.,‘' / >, Y <1 , ,i .Y':.-.'/J;-y(ff?j vY. / .' '■ 'y V/^aY :y j,'} ,fv! ^ /. , “ Ar>l ' f 'y ;A'' . 4AAV y '' ' 4^ 'V 4 , ' A ^•-' , , ‘ .^lA \' I , Y 44 A p\ ' / A, t - X" f- y' "r '4 ..',', 4'. ANNALS OF THE CARNEGIE MUSEUM VOLUME XXI, NO. 3 Editorial Notes. Mr. Howard Heinz has kindly loaned to the Museum a volume con- taining autographs and portraits of the five women who have reigned as queens in England: Mary I (1553-1558) daughter of Henry VIH by Catherine of Aragon, born 1516; Elizabeth (1558-1603) daughter of Henry VIII by Anne Boleyn, born 1533; Mary II (1689-1694) daughter of James II, born 1662 ; Anne (1702- 17 14) second daughter of James II, born 1665; Victoria (1837-1901) daughter of Edward, Duke of Kent, the fourth son of George III, born 1819. The volume contains a large miniature of Queen Victoria seated in state, which is inserted on the inside of the cover in a gold frame, adorned by opals and mother-of-pearl. The volume also contains five miniatures on ivory of the Queens mounted in smaller settings. The book is artistically and sumptuously bound in French Morocco. Displayed in one of the cases in the H. J. Heinz gallery, it has attracted the attention and admiration of multitudes. Two groups which have been recently finished and placed on ex- hibition in the Carnegie Museum have excited much admiration. One of these is what is known as the “Alligator Group,” located in the Gallery of Reptiles. The material for this group was collected by Mr. Harold J. Clement and Mr. Charles T. Agostini of the staff of the Museum, who went to Florida to obtain the specimens and the accessories which are united in the group, which was fabricated by Mr. Clement and Mr. Ottmar F. von Fuehrer, the latter having painted the background. The locality selected is at the southern extremity of the Everglades. 93 94 Annals of the Carnegie Museum. The collectors of the material were granted laboratory facilities by the University of Miami, to whom grateful acknowledgment should be m.ade, as well as to Mr. Albert Pflueger, who kindly assisted them. The other group, made by Mr. and Mrs. von Fuehrer, representing a scene in subtropical Florida shows the luxuriant tropical vegetation of that part of the world. It has just been opened to exhibition in the northeastern corner of the Gallery of Plants. It is one of four groups. The first illustrates the spring flora of Pennsylvania. It was executed some years ago and is most admirable. The second group shows the desert regions of Arizona and conveys in incomparable beauty of execution an idea of the vegetation of these arid lands. The fourth group, which is rapidly being brought forward, displays the alpine vegetation of the mountains of the northwestern parts of the United States, the scene being located above Paradise Valley on Mt. Rainier, the glaciers of which form the background. Mrs. Josiah Cohen, whose husband was one of the first members of the Board of Trustees of the Carnegie Institute appointed by Mr. Carnegie, and who served as a member of the Committee on the Mu- seum from its organization in 1898 to 1900 inclusive, has graciously presented to the Museum an exceedingly handsome piece of Brussels lace bequeathed to her by her sister-in-law Mrs. Aaron Naumberg of New York City. It is a masterpiece, exquisitely illustrating the delicacy of this form of needle-work, and will be treasured not only for its inherent beauty, but as a memorial of the lovely woman who has so generously presented it to us. The writer of these lines recalls the days long ago, when the kind donor of this gift used to seat herself in Mr. Carnegie’s cottage at Cresson, and charm him and his friends by her superb renditions upon the pianoforte. When meeting her today, with her youthful face and sprightly bearing, it is impossible to realize the flight of time, during which she and the Editor of the Annals have claimed friendship. She and her father, of blessed memory, were among the founders of the Art Society of Pittsburgh, of which the writer, half a century ago was for a time the Secretary. The Curator of Ornithology, Mr. W. E. Clyde Todd, is devoting the months of June and July to natural history investigations, more particularly of an ornithological character, in Saskatchewan. He is accompanied by Dr. George M. Sutton and Mr. A. C. Lloyd. Editorial Notes. 95 The publication of Dr. G. M. Sutton’s account of his work on South- ampton Island, Hudson Bay, is nearing completion, and will constitute Vol. XII, of the Memoirs of this Museum. The Introductory Part, which deals with the discovery of the Island, its physical features, its human inhabitants, and an extensive bibliography at the end, with five plates, was issued from the press on March 31, 1932. The Part dealing with the birds of the Island, including pp. 1-267, and Plates XI to XXIV was published on May 31, 1932. The Part covering the Mammals of the Island, illustrated with five plates (VI-X) is going through the press and will appear about the end of June. The Parts dealing with the Fishes, the Invertebrates, and the Plants will quickly follow. The Carnegie Museum is deeply indebted to Mr. John B. Semple, whose generosity made it possible for Mr. Sutton to spend a year upon Southampton Islahd. Of course Mr. Sutton, who is an ornithologist, devoted more time to the birds than to other things, but his collec- tion of mammals was large, and his observations upon them were extensive and minutely accurate. At the time when the first building erected to house the Carnegie Library of Pittsburgh was dedicated, including at that time the some- what limited space intended to contain the collections of the Museum and the Department of Fine Arts, the placing of displays in the Museum was temporarily undertaken by the Academy of Science and Art of Pittsburgh. Among those members of the Academy who generously loaned material from their private collections was the late Mr. S. H. Stupakoff. Mr. Stupakoff was an enthusiastic amateur conchologist. He was an engineer in the employment of the West- inghouse Electric Company. He devoted his leisure hours to his favorite study, and made a very large collection of shells. Recently his son, Mr. S. H. Stupakoff, Jr., with great generosity has turned over this collection in its entirety to the Carnegie Museum. It includes approximately thirty-two hundred sets of gastropods and pelecypods. This gift almost doubles in size the collection of marine shells in the Museum. The beautiful set of Cones and Cowries are a welcome and valuable addition. The large series of land-shells of Europe, Asia, and America add many species hitherto not represented in the Mu- seum. We are deeply grateful for the generous action of Dr. Stupa- koff’s son in making this gift. 96 Annals of the Carnegie Museum. The Section of Recent Invertebrates received a collection of some 500,000 shells as a gift to the Museum from Mrs. Christina Wright, of Indiana University, Bloomington, Indiana. It contains chiefly representatives of the fauna of the Tippecanoe and Wabash river- systems. The whole consignment, contained in twenty-four cases, was shipped from Indiana to the Museum. It is a valuable accession. Mrs. Thomas R. Hartley presented to the Museum a collection of Indian antiquities and oriental objects assembled by her late hus- band. The total number of items is approximately three hundred and forty. The Indian basketry is of particular interest, and has been already placed on display in our galleries. One of the objects contained in this collection, a Japanese carving in wood of a dragon, was repre- sented on page 6 of the April number of The Carnegie Magazine. Dr. A. I. Good has sent us an interesting collection of mammals, insects, shells, etc., from Spanish West Africa. There are sixty skins and fifty-three skulls of mammalia forming a desirable addition to our African material. Dr. O. E. Jennings, Mr. Remi H. Santens, Dr. Stanley T. Brooks, and Dr. A. Avinoff, the Director, were present at the Annual Meet- ing of the American Association of Museums, held in Cambridge, Mass., May 12 to 14. In the absence of the Chairman of the Tech- nical Section, Mr. Santens, in his capacity of Vice-chairman, took his place. Dr. Jennings and Dr. Brooks performed their respective duties as Chairman and Secretary of the Scientific Section, to which offices they had been elected during the previous meeting in Pittsburgh. The next meeting will be held in Chicago. VIII. JURASSIC INSECTS FROM SOLENHOFEN IN THE CARNEGIE MUSEUM AND THE MUSEUM OF COMPARATIVE ZOOLOGY. By F. M. Carpenter. Museum of Comparative Zoology The lithographic limestone at Solenhofen, Bavaria, and vicinity, has long been famous as a source of Jurassic fossils. Although the reputation of the formation has depended largely upon the discovery of certain remarkable vertebrates, such as Archceopteryx and Rham- phorhynchus, invertebrates are far commoner. Most of these are marine types, the limestone being marine in its origin; but numerous insects, which undoubtedly fell into the water, have also been pre- served. More publications have been devoted to these insects than to any other fossil insect-fauna of equivalent size, chiefly because the commercial working of the limestone has produced an almost con- tinuous output of specimens. In view of the extensive bibliography of the fossil insects of Solen- hofen, one might conclude that all positive information about them has already been published. This would probably be true, were it not for the fact that, exclusive of Handlirsch’s extensive compilation on fossil insects (1906-08), and a few papers of a general nature, or brief notes, all the literature was published prior to 1900, before the geological history of the insects as a whole was well enough known to enable a proper appreciation of the species contained in any one stratum. Handlirsch, of course, straightened out most of the taxo- nomic difficulties encountered by the older investigators, and was able to make the necessary comparisons with other extinct faunas; but he was not able to examine specimens of all the species from Solen- hofen, and, with a few exceptions, took his figures without modifica- tion from the earlier writings. Several years ago, while engaged in a rearrangement of the fossil insects in the Museum of Comparative Zoology, I was impressed by the large number of specimens from Solenhofen in that collection. Studies on other fossil insects already in progress prevented my im- mediate examination of these, but last year my attention was called 97 98 Annals of the Carnegie Museum. to another large collection in the Carnegie Museum. This material, although secured many years ago from Baron de Bayet,* the Private Secretary of King Leopold II of Belgium, when he sold his vast col- lection to Mr. Andrew Carnegie, had not been critically studied until 1930, when Mr. Stephen Herrick, a graduate student in the University of Pittsburgh, undertook its arrangement and description. Mr. Herrick, however, did not proceed far, and did not prepare any ac- count for publication. Accordingly the entire collection was sent to me for detailed description. This is particularly desirable, not only because the Bayet Collection contains new material, but because the percentage of excellent specimens in it is unusually high. The present paper is essentially an annotated list of the specimens in the collec- tion of the Carnegie Museum. I have, however, considered it oppor- tune to mention and occasionally describe some of the important fossils in the Museum of Comparative Zoology. About half of the Harvard collection was secured from Krantz as far back as i860, and was studied by Hagen; but many of the specimens have not been properly described.^ The other half of the collection was purchased from Haberlein about 1883; it has not been studied, or at least pub- lished upon, except very briefly.^ For the benefit of those who desire further discussion of the fossils of Solenhofen, I have included under each species the reference to the original description and to the im- portant subsequent redescriptions; a more complete series of refer- ences will be found in Handlirsch (1906-08). In the bibliography I have listed the most useful papers on the fauna. The synonymy of these fossils is very confusing and uncertain. In the main I have fol- lowed Handlirsch, but I believe that he recognizes many more species than are actually valid. This is chiefly due to the inadequacy of the figures and descriptions published during the Eighteenth and early *The Editor, who acted as the agent of Mr. Andrew Carnegie in the purchase of the Collection of Baron de Bayet, and spent many weeks in Brussels in 1908 packing it for shipment to Pittsburgh, recalls that the Baron informed him that the specimens from Solenhofen had been acquired at the quarries from the superin- tendents to whom the Baron had made an offer to recompense them for all fossils found by them in good condition as they proceeded with their work. This offer continued for a couple of years and it was thus that Baron de Bayet succeeded in amassing among other things the fine collection of insects from Solenhofen. W. J. H. ^One of these I have already described in Psyche, Vol. XXXVI; No. 3, pp. 190-194, 1929. ^See Tillyard, 1921, 1927; Needham, 1903, 1907. Carpenter, F. M.: Jurassic Insects from Solenhofen 99 Nineteenth Centuries. The authors of these accounts often made a new species for every specimen preserved in a different position. It is surprising, that, although the shales of Solenhofen were used for building purposes in the time of the Roman Empire, no recognizable accounts of fossils were published, so far as I am aware, until 1705, when Rumphius described a fish from the formation. Knorr (1755) was the first to mention the presence of insects; in 1782 Schmidel figured a dragon-fly from the limestone; two years later Schroter published a description of a supposed Sphingid, which is now known to be a Siricoid wasp. During the first third of the Nineteenth Cen- tury a few isolated accounts were published, mostly on Dragonflies (Koehler, Parkinson, Van der Linden) ; but after the discovery of lithography in 1834,^ large collections of the fossils were secured, which were first studied by Germar (1837, 1839, 1842), later by Hagen (1862, 1866, et seq.), and Weyenbergh (1869, 1873, et seq.). Deichmiiller (1886) published a very complete account of the litho- graphic insects in the Dresden Museum; and Handlirsch made a com- prehensive compilation and classification of the species (1906). In the Carnegie Museum there are one hundred and forty-six speci- mens sufficiently well preserved at least to permit generic classifica- tion. In the Museum of Comparative Zoology there are two hundred and eighty-six such specimens. In the accompanying table I have listed the percentages of specimens falling into each order. The figures in the first column are based upon the four hundred and thirty- two specimens, which I have examined in these two collections; those in the second column are the percentages which Deichmiiller found in his collection of two hundred and seventy-two specimens; and in the last column are the averages of these, based upon the seven hundred and four specimens in all three collections. This last computation probably represents a fairly accurate picture of the rela- tive abundance of the several orders. From this it is apparent that the Odonata are far in the lead, followed by the Hymenoptera, Coleoptera, Blattaria, Hemiptera, Orthoptera, Phasmodea, Plectoptera, Neuroptera, and finally the Trichoptera. These figures do not, however, represent the composition of the insect-fauna, which existed in the region of Solenhofen during the Upper Jurassic; for the limestone is of such a nature that only the larger insects were capable of being preserved, ®See Crook, A. R., “The Lithographic Stone Quarries of Bavaria, Germany,” Stone, Oct., 1894. 100 Annals of the Carnegie Museum. the smaller ones having been decomposed, or devoured by fishes before fossilization took place. Table I. Approximate percentages of specimens from Solenhofen in each order of insects. Carpenter Deichmiiller Average (432 specimens) (272 specimens) (704 specimens) Plectoptera 4. pr. ct. 3 pr. ct. 2 \ pr. ct. Odonata • • 33 • pr. ct. 34- pr. ct. 34 pr. ct. Blattaria 6. pr. ct. II . pr. ct. 9 pr. ct. Orthoptera 9. pr .ct. 5- pr. ct. 7 ^Pr. ct. Phasmodea 8. pr. ct. 5. pr. ct. 7 pr. ct. Hemiptera 10. pr. ct. 6 . pr. ct. 8 pr. ct. Neuroptera 2 . pr. ct. I . pr. ct. I 5 pr. ct. Trichoptera 2 pr. ct. . pr. ct. I pr. ct. Coleoptera ... 13. pr. ct. 12 . pr. ct. 13 pr. ct. Hymenoptera 12 . pr. ct. 24. pr. ct. 18 pr. ct. Order PLECTOPTERA. The May-flies of Solenhofen, although few in number, are particularly interesting, since they are the first representatives of members of the order in rocks above the Permian. Aside from a few fragments from the Lower Cretaceous of Mongolia (Cockerell, 1924, 1927) they are the only Ephemerids known in the whole Mesozoic. However, be- cause of the delicacy of the wings and their tendency to fold together in such a way that the venation is badly confused, good specimens of these fossils are extremely rare. Thirteen species of May-flies from Solenhofen have been described, but many of these are undoubtedly synonymous. Handlirsch has separated most of these species into two genera, Mesephemera and Paedephemera, the former including species with nearly homonomous wings, and the latter species with the hind wings more reduced in size," about two-thirds the length of the fore wings. Although the general shape of the wings is known in Mesephemera, the details of the venation have not been determined. But in Paedephemera the venation is known in two species, multinervosa Oppenheim, and schwertschlageri Handlirsch. The latter, which was based upon a fine specimen, is in all probability synonymous with one of the other species of the genus, but in view of the obscurity of these other species, I believe we should retain a sepa- rate name for Handlirsch’s specimen. The single remaining genus. Carpenter, F. M.: Jurassic Insects from Solenhofen. 101 Hexagenites Scudder is probably synonymous with Mesephemera, but because the hind wing is unknown and for another reason given be- low, I believe Scudder’s genus should be regarded as valid. Inasmuch as the existing Ephemerids have now been divided into recent families, I propose the name Mesephemeridm for these forms from Solenhofen. At present, because of our lack of knowledge of their tarsal and other body-structures, I do not believe we can assign them to existing families or even superfamilies. Family MESEPHEMERID^. Genus Mesephemera Elandlirsch. I. Mesephemera procera (Hagen). Ephemera procera Hagen, 1862, Palaeontogr., X, 116; pi. 15, f. 2. Mesephemera procera Handlirsch, 1906, Foss. Ins.: 600. I consider speciosa Oppenheim (1888) and weyenberghi Handlirsch (1906) as synonyms of this species. Lithophila Germar (1842) is probably the same insect also, although it was considered by its author to be a Lepidopteron ; but Germar’s figure and descriptions do not serve as sufficient identification of the species. In the Bayet Collection in the Carnegie Museum there are five specimens of M. procera] Nos. 3835, 3836-3837,* 3838-3839, 5083-5084, 5085-5086. In the Museum of Comparative Zoology there are four specimens, of which one (No. 6280a, b) is marked “type” by Krantz. In none of these is the venation distinct, and I can add nothing to Hagen’s description. 2. Mesephemera celluiosa (Hagen). Ephemera celluiosa Hagen, 1862, Palaeontogr., X, 115; pi. 15, f. 3. Mesephemera celluiosa Handlirsch, 1906, Foss. Ins.: 601. In the Bayet Collection (Cam. Mus.) there are two specimens: Nos. 3840 and 5087. In the Museum of Comparative Zoology there are four specimens, one (No. 6281a, b) being the type figured by Hagen. *In this paper all the figures connected with a dash indicate the reverse of the first numbered specimens. 102 Annals of the Carnegie Museum. Genus Paedephemera Handlirsch. 3. Paedephemera mortua (Hagen). Ephemera mortua Hagen, 1862, Palaeontogr., X, 117; pi. 15, f. 5. Paedephemera mortua Handlirsch, 1906, Foss. Ins.: 602. I consider Handlirsch’s oppenheimi a synonym of this species. There are no representatives in the Bayet Collection of the Carnegie Museum, but in the Museum of Comparative Zoology, there is the type figured by Hagen (No. 6283). Genus Hexagenites Scudder. 4. Hexagenites weyenberghi Scudder. (Fig. i) Ephemerida, Eaton, 1871, Trans. Ent. Soc. Lond., p. 158; pi. i, f. 10. Hexagenites weyenberghi Scudder, 1880, Anniv. Mem. Bost. Soc. Nat. Hist., 6. Length of fore wing, 15 mm. Scudder’s description of this tossil was based entirely upon Eaton’s published figure of a specimen in the British Museum. In the Mu- seum of Comparative Zoology I find a very fine specimen of a May-fly, to which is attached the following note, in Hagen’s characteristic writing: ''Ephemera celliilosa Hagen, front wings and outline of body and setae.” On the reverse side of this label, written in a hand un- familiar to me, is the following: “The counterpart was described by Scudder as Palin. Weyenberghi.'' Although this note is incorrect in its reference to the genus in which Scudder placed the species, there can be no doubt that this fossil (No. 6277) in the Museum of Comparative Zoology is the reverse of the specimen examined by Eaton in the British Museum. A comparison of the venation of our Fig. I. Hexagenites weyenberghi Scndder, lore: wing. Type (No. 6277), Mus. Comp. Zool. Magnified. * Carpenter, F. M.: Jurassic Insects from Solenhofen. 103 fossil and the figure given by Eaton shows that not only do all the cross-veins and cells correspond, but also the various breaks and im- perfections in the wing occur in the same places, although our half of the fossil has been chipped out of the matrix, so that the whole wing is exposed. The specimen before me is therefore the counterpart of the type of Scudder’s weyenberghi. Hagen’s determination of this species as cellulosa perhaps indicates that weyenberghi is synonymous with cellulosa; but in view of the fact that cellulosa is a very obscure species, and is closely involved with the synonymy of the several species of Mesephemera, I believe that weyenberghi should be regarded as a separate species of a distinct genus. Figure i, showing the fore wing of this May-fly, is based on the specimen in the Museum of Com- parative Zoology. The entire wing is preserved with remarkable clearness. This is the only known complete wing of a Mesozoic May- fly. The figure shows more clearly than can be depicted in words the characteristics of the wing, but I wish to call attention to the similarity of this wing to that of recent May-flies, even to the formation of the third auxiliary vein at the base of the wing (3 Ax). The triad forking of CuA and the peculiar branching of I CuA are very distinctive features. As Scudder pointed out, the nearest approach to this CuA is found in the recent genus Hexagenia. Order ODONATA. As previously noted, the Odonata are the commonest insects in the shales of Solenhofen and they are usually well preserved. This fact, together with the importance of venational features in classifying the members of the order, has made the species of Solenhofen particularly valuable in studies of the evolution of the order. Unlike the May- flies, the dragon-flies are well represented in the Mesozoic strata. The Triassic of Australia, Liassic of England and Germany, and the Upper Jurassic of Turkestan have contributed many fossils of this order. The beds of Solenhofen, however, are the oldest rocks to yield fossils of the Anisoptera, which is now the predominant suborder. The Zygoptera are known as far back as the Upper Permian; and the Anisozygoptera from the Triassic to the Upper Jurassic and perhaps the Tertiary.^ ^Some students of the Odonata consider that the recent Japanese Epiophlebia is a member of the Anisozygoptera. For an account of this subject, see my dis- cussion in the American Journal of Science, (Ser. 5), Vol. XXXI, p. 97-139, 1931. 104 Annals of the Carnegie Museum. Probably the best and most reliable original work on the Odonata of Solenhofen has been done by Hagen, who accumulated a large personal collection of the Jurassic dragon-flies, many of which were subsequently given to the Museum of Comparative Zoology. Deich- miiller described some additional species and contributed a great deal to our knowledge of the venation of Hagen’s species; Handlirsch, of course, has given a more modern classification of them. Although about fifty species of Odonata have been described from the shales of Solenhofen; more than half of them are synonyms. Suborder ANISO ZYGO PT ERA. This suborder was established by Handlirsch to include a series of forms ancestral to the true Anisoptera. As more and more fossil Odonata are found, it is becoming increasingly difficult to draw the boundary between these two suborders. Tillyard has pointed out that Handlirsch included two distinct types of families in the A7ii- sozygoptera: one in which the discoidal cell of the hind wing is radically different from that of the fore wing (more specialized) ; and another, in which the discoidal cell of the fore wing has finally attained the degree of specialization reached by that of the hind wing. He has suggested that the former series be included in the A?iisozygoptera, and the latter in the Anisoptera. This view I was also led to accept from my review of the Permian species (1931). According to this use of the subordinal name, the family StenophlehiidcB from Solenhofen becomes a member of the Anisoptera, instead of the A?iisozygoptera, where it was placed by Handlirsch. Family TARSOPHLEBIID^. Genus Tarsophlebia Hagen. 5. Tarsophlebia eximia (Hagen). (Fig. 2) Heterophlebia eximia Hagen, 1862, Palaeontogr., X, 106. Tarsophlebia eximia Hagen, 1866, Palaeontogr., XV, 65; pi. i, f. 1-6, ii. Length of fore wing, 30-36 mm. This is not a common species in the limestone and was undoubtedly a delicate species, for the specimens are not nearly so well preserved as the other Odonata. It is one of the most interesting of all the species in the formation, however, because of the simple structure of the discoidal cell, which is open (or really absent) in at least the fore wing. The hind wing was figured by Hagen as having a similar structure. Carpenter, F. M.: Jurassic Insects from Solenhofen. 105 and that view has been generally accepted; but in no specimen which I have seen, including Hagen’s types, are the hind wings sufficiently well preserved to convince me that this was actually the case. The venation has been figured by Hagen and his drawing has been repro- duced in several of Handlirsch’s works; but I have included a new figure of the basal part of the wing, showing the peculiar structure of the arculus, which distinguishes Tarsophlebia at once from the other genera of Solenhofen. The oblique vein joining the media with CuP at the base is obviously a cross-vein or a derivative of a cross-vein, for it is much thinner and weaker than the stem of MA or Rs. Fig. 2. Tarsophlebia eximia (Hagen), base of fore wing. Type (No. 6223), Mus. Comp. Zool. Greatly magnified. In the Bayet Collection of the Carnegie Museum there are four specimens of eximia, Nos. 3807, 3808, 5089, 5090, and No. 3828 from the collection received from the Paleontological Museum of Bavaria, Munich, of which the last is very good, although unusually small. In the Museum of Comparative Zoology there are twenty-one speci- mens, Nos. 6216-6227 being a part of the type-series of Hagen. Family ISOPHLEBIIDTi. Genus Isophlebia Hagen. 6. Isophlebia aspasia Hagen. Isophlebia aspasia Hagen, 1866, Palseontogr., XV, 70; pi. 2, f. 12; pi. 4, f. 13. Deichmiiller, 1866, Mitt. Koenigl. Mineral. -Geol. Prsehist. Mus. Dresd., VII, 56; pi. 4, f. 4-6. Length of fore wing, 95-100 mm. This is the largest of the dragon-flies of Solenhofen. It is dis- tinguished from the other genera by the quadrilateral shape of the 106 Annals of the Carnegie Museum. discoidal cell in the fore wing; I believe that in the hind wing this cell is divided by an oblique cross-vein, forming a triangle; but unfor- tunately in all of the specimens which I have examined the wings overlap in such a way that one cannot be sure of the presence of the cross-vein. In the Bayet Collection of the Carnegie Museum, there are six specimens of aspasia, Nos. 3811, 3812, 3813-3814, 5091, 5092, 5093. In the Museum of Comparative Zoology there are twelve speci- mens, of which Nos. 6186-6189 Hagen’s types. Suborder ANISOPTERA. Family STENOPHLEBIID.F:. Genus Stenophlebia Hagen. 7. Stenophlebia latreillei (Germar). (Fig. 3) Agrion latreillei Germar, 1839, Verb. L. Car. Ak., XIX, 218; pi. 23, f. 16. Stenophlebia cequalis Hagen, 1866, Palseontogr., XV, 86; pi. i, f. 24. Stenophlebia latreillei Deichmiiller, 1886, Mitt. Koenigl. Mineral. -Geol. Praehist. Mus., Dresd., VII, 44; pi. 4, f. 13. Length of fore wing, 50-60 mm. This slender-winged dragon-fly is characterized by a simple type of discoidal cell, which is similar in structure in both pairs of wings. Hagen and Deichmiiller have given good figures, but I include a more detailed drawing of the base of the wing. The arculus is very clearly shown in one specimen (Carnegie No. 3996). The media is more de- tached from R at the base than it is in any of the Odonata, which I Fig. 3. Stenophlebia latreillei (Germar), diagram of main veins at base of fore wing. No. 3796, Cam. Mus. have seen, and its course at the arculus is very clear. The vein divid- ing the discoidal cell is much weaker than the longitudinal veins and has the appearance of a cross-vein. In the Bayet Collection of the Carpenter, F. M.: Jurassic Insects from Solenhofen. 107 Carnegie Museum there are ten specimens of this species (Nos. 3796, 3997» 5094- 5095. 5096-5097> 5098-5099. 5ioo, 5101-5102 and 3798. No. 3798 from the collection of the Paleontological Museum of Bavaria in Munich). In the Museum of Comparative Zoology there are sixteen specimens, of which Nos. 6205, 6210, 6211, 6212, 6213, 6214, 6215 are types of Hagen’s synonymous species, cequalis, lithophila, and phryne. 8. Stenophlebia amphitrite (Hagen). Heterophlebia amphitrite Hagen, 1862, Palaeontogr., X, 105. Stenophlebia amphitrite Hagen, 1886, Palaeontogr., XV, 83; pi. 3, f. i. Length of fore wing, 80 mm. This species is similar to latreillei, but is larger, and has narrower wings with a broader discoidal cell. It is a rare species, and only two specimens are in the Museum of Comparative Zoology. Family ^SCHNID^. Subfamily iF^scHNiDiN^.^ This subfamily includes the most highly specialized of the Jurassic Odonata and is related to several recent groups of the family. It was originally established by Handlirsch to include Mschnidium Westwood and Urogomphus Handlirsch. The former genus was based on fragments of a species {bub as Westwood) from the Jurassic of England, but Handlirsch also placed here a second species from the English Jurassic {antiquum Brodie), one finely preserved species from the lithographic limestone {densum Hagen), and one species from the Cretaceous of Australia {f Under siensis Woodward). The latter was placed by Tillyard (1917) in a separate genus ^Eschnidiopsis. In Urogomphus Handlirsch placed three species from the lithographic limestone {giganteus Hagen, eximius Hagen, and abscissus Hagen), none of which were represented by species showing details of structure. Now in the Bayet Collection there is a very fine specimen of giganteus, showing the minute structure of both pairs of wings. The wings of this fossil turn out to be very close to those of Mschnidium densum ^As Tillyard has pointed out, if we use the long-established classification of the Anisoptera, dividing them into two families, Mschnidce and Libellulidce, then Handlirsch’s JEschnididce deserve only subfamily rank. This is the arrangement I have used here. 108 Annals of the Carnegie Museum. Hagen, also from the limestone of Solenhofen; in fact these species are so close, that it is obvious they belong to the same genus. How- ever, instead of placing these three species of Urogomphus in Msdini- diiim (thus synonymizing Urogomphus with yEschnidium) , I believe it is more satisfactory to transfer the species densum from yEschnidium to Urogomphus. By so doing we include the species from England {hiihas and antiquum) in ^schnidium, and all the species from Solen- hofen in Urogomphus \ and there can be no question that these species from Solenhofen are more closely related to each other, than to the English forms. According to this arrangement the subfamily yEschni- dince includes the following: yEschnidium Westwood (1854). Jurassic of England. bubas Westwood, genotype, antiquum Brodie. yEschnidiopsis Tillyard (1917). Cretaceous of Australia. f Under siensis (Woodward), genotype. Urogomphus Handlirsch (1906). Jurassic of Bavaria. giganteus (Germar), genotype, eximius (Hagen). abscissius (Hagen). densus (Hagen). 9. Urogomphus giganteus (Germar). (Fig. 4) yEschna gigantea Germar, 1839, Nova Acta, XIX, 216; pi. 22, fig. 14. Estemoa gigantea Deichmiiller, 1886, Mitt. Koenigl. Mineral. -Geol. Praehist. Mus. Dresd., VII, 35; pi. 3, f. 1-3. Urogom.phus giganteus Handlirsch, 1906, Foss. Ins., 594; pi. 47, f. 18. Length of fore wing, 90-95 mm. This rare species has previously been known only from very poor specimens. The only original figure is that of Deichmiiller, who was able to determine only the general characteristics of the main longi- tudinal veins in the apical half of the wing. In the Carnegie Museum there is an excellent specimen of this species, showing all details of the venation, including the cellules, except at the very apex of the fore wing. This fossil provides us with the first complete picture not only of giganteus, but of Urogomphus as a whole, since none of the species of the genus have been represented by good specimens. The fore wing is narrow basally and pointed apically; the posterior margin Carpenter, F. M.: Jurassic Insects from Solenhofen. 109 Fig. 4. Urogomphus giganteus (Germar), bases of fore and hind wings; specimen No. 3829-3830, Carnegie Museum. The fine network of cross-veins resembling that of, densus is omitted from the figure. Magnified. possesses two indentations, one at the termination of R3 and the other at the end of R4; nodus at about midwing; both 1R2 and R3, R4 and M converging at the margin; the two original antenodals very dis- tinct; supratriangle very long and narrow; triangle large. The hind wing is very broad basally; there is a third prominent antenodal at the very base of the wing. The surface of both wings, including the costal space, is covered with a fine network of cells. This species is close to densus Hagen, but is nearly twice as large and has much narrower wings. In the Carnegie collection there are two specimens of this species: No. 3829-3830 described above; and No. 3831, a complete, but poorer specimen. In the Museum of Com- parative Zoology there is one specimen, showing the base of the two right wings and the whole of the left wings. no Annals of the Carnegie Museum. Subfamily Cymatophlebiin^. Genus Cymatophlebia Deichmiiller. 10. Cymatophlebia longialata (Germar). (Fig. 5) Libellula longialata Germar, 1839, Nova Acta, XIX, 216; pi. 23, f. 15. Cymatophlebia longialata Deichmiiller, 1886, Mitt. Koenigl. Mineral. -Geol. Prsehist. Mus. Dresd., VII, 49; pi. 3, f. 5-8. Length of fore wing, 70 mm. This is a common dragon-fly, the genus being distinguished by the upward bend in R3 just below the pterostigma. The venation of longialata has been figured by Hagen and Deichmiiller, but in neither case are the wings complete or detailed.® I have therefore included Fig. 5. Cymatophlebia longialata (Germar), hind wing and base of fore wing; drawn from specimens Nos. 3823-3824, Cam. Mus. Magnified. a drawing of the hind wing and the base of the fore wing. In general structure of the wing and especially in the undulation of R3 Cyma- topJilebia is close to the ^schnmcc; but the anal loop, characteristic ^Needham (1907) has figured this species in the Bulletin of the American Museum of Natural History (figure 2), based upon a specimen in the Museum of Comparative Zoology which he supposed to be Germar’s jEschna munsteri. Needham established a new genus (Morbceschna) for this fossil, but it is of course synonymous with Cymatophlebia, since the specimen was really longialata. In the same paper he has also given a figure of what he supposed to be longialata, also based on a specimen in the Museum of Comparative Zoology; but his figure is really of a new species, described below (jiirassica) , as shown by the hind wing. Carpenter, F. M.: Jurassic Insects from Solenhofen. Ill of this recent subfamily, is entirely absent. For that reason, a separate subfamily for Cymatophlebia is justified. In the Carnegie Museum there are specimens of lo7igialata belonging to the Bayet Collection, Nos. 3823, 3824-5103, 3825-3826, 5104, 5105, 5106, 5107, 5108, and No. 3827 received from the collection of the Paleontological Museum of Bavaria in Munich. Nos. 3823 and 3824 are excellent specimens, showing fore wings in detail. In the Museum of Comparative Zoology there are fourteen specimens, of which Nos. 6295 and 6248 are excellent. II. Cymatophlebia jurassica, sp. nov. (Fig. 6) Length of fore wing, 43 mm.; width 10 mm.; length of hind wing, 42 mm.; width, 14 mm. In addition to its smaller size this species is distinguished from longialata by the following features: (i) the fore wing is broader in the distal half of the wing; (2) the hind wing is relatively broader throughout, and the inner margin is distinctly more rounded; and (3) in both wings and especially in the fore, the undulations of R3 are more pronounced. Fig. 6. Cymatophlebia jurassica, sp. nov., based on the holotype (No. 3819, Cam. Mus.) and the paratype (No. 6193, Mus. Comp. Zodl.) Magnified. Holotype: No. 3815, Carnegie Museum (Secured by Baron de Bayet) from the collection of Mrs. Gordon Thomson. This specimen 112 Annals of the Carnegie Museum. is faintly preserved, but under good illumination all the structures indicated in figure 6 are visible; the fossil shows all four wings out- spread. Paratype: No. 6193 and reverse (6275) in the Museum of Comparative Zoology. This fossil does not show quite so much detail as the holotype, but includes all the structures essential for determination. This is almost certainly the species represented in Needham’s figure of longialata, based upon a specimen in the Museum of Com- parative Zoology, although I am unable to locate in the collection the specimen which he has illustrated. Subfamily Protolindeniin^. Genus Protolindenia Deichmuller. Protolindenia Deichmuller, 1886, Mitt. Koenigl. Mineral. -Geol. Praehist. Mus* Dresd., VII, 37. Mesuropetala Handlirsch, 1906, Foss. Ins.: 588. The genus Protolindenia was established by Deichmuller for the single species wittei, but new specimens of koehleri Hagen, the type of Handlirsch ’s genus Mesuropetala, show that this species is exceed- ingly close to wittei and should be included in the same genus. Pro- tolindenia is distinguished from Cymatophlebia by the absence of the undulation in R3, mentioned above; in Protolindenia R3 and 1R2 are parallel in the region of the pterostigma. 12. Protolindenia wittei (Giebel). jpschna wittei Giebel, i860, Zitsch. Ges. Nat., XVI, 127; pi. i, f. i. Protolindenia wittei Deichmuller, 1886, Mitt. Koenigl. Mineral. -Geol. Praehist. Mus. Dresd., VII, 37; pi. 4, ff. i, 2, 9, 10. Length of fore wing, 40-50 mm. This common species has been figured in detail by Deichmuller and needs no further description. The triangle of the fore wing has the top side the same length as the apical side. In the Carnegie Museum there are three specimens. Nos. 3818, 5109-51 10, and 3820, the latter being the most perfectly preserved of all the Solenhofen Odonata which I have seen. In the Museum of Comparative Zoology there are twenty-one specimens. Carpenter, F. M.: Jurassic Insects from Solenhofen. 113 13. Protolindenia koehleri (Hagen). (Fig. 7) Gomphus (?) kcehleri Hagen, 1848, Stett. Ent. Zeit., IX, 8. Uropetala kcehleri Deichmiiller, 1886, Mitt. Koenigl. Mineral.-Geol. Preehist. Mus. Dresd., VII, 52; pi. 4, ff. 3, ii, 12. Mesuropetala kcehleri Handlirsch, 1908, Foss. Ins. p. 588; pi. 47, f. 9. Length of fore wing, 45-50 mm. This species is distinguished from the previous one by having the apical side of the triangle of the fore wing much shorter than the top side. Since no complete figure of kcehleri has been published, I in- clude one based on specimens No. 6194 and 1998 in the Museum of Comparative Zoology. There are no specimens of this species in the Fig. 7. Protolindenia kcehleri (Hagen), fore wing and base of hind wing (Specimens Nos. 6194, 1998, Mus. Comp. Z06I.) Magnified. Carnegie Museum. Miinsteri (Germar), which has been doubtfully referred to Mesuropetala, was described only by a very crude figure showing the outlines of the wings. Specimens in Hagen’s collection labelled Mschna miinsteri are a mixture of Cymatophlebia wittei, and kcehleri. The specimen, which Needham figured as miinsteri, and for which he established the new genus Morhceschna is really a Cyma- tophlebia {longialata) as shown by the contour of R3. Schmideli (Giebel), which was figured but not described by Schmidel in 1782, is also unrecognizable. I believe that both these species, miinsteri and schmideli, should be dropped from the literature as unrecognizable insects. 114 Annals of the Carnegie Museum. Subfamily Cordulegasterin^ Calvert. Genus ALschnogomphus Handlirsch. 14. JEschnogomphus intermedius (Hagen). (Fig. 8) Anax intermedius Hagen, 1848, Stett. Ent. Zeit., IX, 10. Cordulegaster intermedius Deichmiiller, 1886, Mitt. Koenigl. Mineral. -Geol. Prsehist. Mus. Dresd., VII, 45; pi. i, f. 7. Length of fore wing, 90-95 mm. This large species is a rare one and has only been figured by Deich- miiller, who was able to represent only the main longitudinal veins. Among the specimens at my disposal there are some very fine repre- sentatives of this insect, from which I have drawn a figure of the base of the hind wing. These specimens show that the wings did not pos- Fig. 8. j^schnogomphus intepnedius (Hagen), base of hind wing. Drawn from specimens No. 3822 Cam. Mus. and 1997, Mus. Comp. Zool. sess the anal loop characteristics of CordtilegasterincE, and support Handlirsch’s view that intermedius requires a separate genus. In the Carnegie collection there are five specimens: Nos. 3822, 3821, 51 ii— 5112, 5113, all derived from the Bayet collection. The fifth specimen. No. 1221, was purchased at Ward’s Establishment. The best of all of these specimens is No. 3822. In the Museum of Comparative Zoology there is one finely preserved specimen (No. 1997). Subfamily Gomphin^. Genus Nannogomphus Handlirsch. 15. Nannogomphus bavaricus Handlirsch. Nannogomphus bavaricus Handlirsch, 1906, Foss. Ins., 587; pi. 47, f. 8. Length of fore wing, 20-25 mm. Carpenter, F. M.; Jurassic Insects from Solenhofen. 115 This is the smallest Anisopteron in the limestone; it has been com- pletely figured by Handlirsch and I can add no details to his descrip- tion. I think that there can be no doubt that gracilis Meunier (1896) and ncEvicus Hagen (1862) are to be referred to this species; but Handlirsch was the first to publish a recognizable description of the species and I consider that his specific name should be used. In the Carnegie collection there are three specimens, Nos. 3815, 3816, and 3817-5114. In the Museum of Comparative Zoology there are five specimens. Suborder ZYGOPTERA. The Damsel-flies of Solenhofen are very unsatisfactorily preserved; apparently the insects were too delicate to withstand decomposition long enough to become well preserved. In the collections of the Car- negie Museum and the Museum of Comparative Zoology there are but a few poor specimens, which can only be determined with doubt. One specimen in the Museum of Comparative Zoology, however, I believe to be the one figured by Needham (1903, p. 9) as an ‘‘unde- scribed Agrionid genus”; at least on the back of this specimen in Needham’s writing are the words ‘‘Agrionid — apparently new, a fine specimen.” Unfortunately, although the body and veins of this in- sect are well preserved, all four wings are folded together in such a manner that I am unable to produce a satisfactory figure of the fossil. If this is the specimen which Needham figured, it may be that he has correctly depicted the venation, but I am not able to follow the course of the veins, and therefore leave the species unnamed. In the Museum of Comparative Zoology, in addition to the type of Malmagrio7i eichstattensis (Hagen), there is a poorly preserved fossil, which probably belongs to the same species. In the Carnegie collec- tion there is a specimen of this insect (No. 5115) and a poorly preserved individual apparently belonging to the genus Pseudoeupheon (3832- 3833)- Order BLATTARIA. Family MESOBLATTINID^. Genus Lithoblatta Handlirsch. 16. Lithoblatta lithophila (Germar). Musca lithophila Germar, 1839, Verb. L. Car. Ak., XIX, 22; pi. 23, f. 19. Mesohlatta lithophila Scudder, 1886, Mem. Bost. Soc. N. H., Ill, 464. 116 Annals of the Carnegie Museum. Mesoblatta lithophila Deichmiiller, 1886, Mitt. Koenigl. Mineral.-Geol. Praehist. Mus. Dresd., VII, 6; pi. i, ff. 1-6. Lithoblatta lithophila Handlirsch, 1906, Foss. Ins., 530; pi. 46, f. 7. Length of fore wing, 13-14 mm. This is one of the commonest insects in the limestone. It has been completely figured and described by several authors. In the Car- negie collection there are seven specimens: Nos. 3791-3792, 5116- 5117, 5118, 5119, 5120, 5121, 5122. In the Museum of Comparative Zoology there are twenty specimens. The specimens are usually pre- served with the elytra outspread, as in the case of the Coleoptera; but they can be distinguished from the latter by the ilat surface of the elytra, which are convex in the coleopterous specimens. Order ORTHOPTERA. The true Orthoptera represented in the formation are_almost ex- clusively Locustoid types. In the Carnegie Museum there is one specimen, which I believe is undoubtedly a Grylloid; the habitus is strikingly like that of the true crickets. These have been found in the Mesozoic only in the English Jurassic, where two species have been located. It is not improbable, therefore, that this form from Solen- hofen is a member of the suborder Grylloidea; but unfortunately neither the venation nor the structure of the body is preserved well enough to permit a definite decision. Family ELCANIDT:. In the genus Elcana Handlirsch has recognized eight species from this one formation, although he suggests that several of the species may be synonymous. From a survey of the material at hand I believe that at most only four species are valid: phyllophora Handlirsch {=havaricus Handlirsch, oppenheimi Handlirsch); lithophila Germar {=amanda Hagen, qucorula Weyenbergh) ; deichmuelleri Handlirsch, and longicornis Handlirsch. Phyllophora and lithophila are unques- tionably represented in the material before me, but there are a num- ber of specimens of Elcana which do not show the characteristics necessary for specific determination. Carpenter, F. M.: Jurassic Insects from Solenhofen. 117 Genus Elcana Giebel. 17. Elcana phyllophora Handlirsch. Elcana phyllophora Handlirsch, 1906, Foss. Ins., 516; pi. 44, f. i. Length of fore wing, 22-25 miri. Rs has 12 to 14 branches, two of which usually give rise to several short marginal veinlets. In the Carnegie collection there is one very fine specimen (No. 5123), shov/ing the venation clearly, as well as the body and the antennae. Another specimen is Nos. 5125-5126. In the Museum of Comparative Zoology there are four poorer speci- mens. 18. Elcana lithophila (Germar). Asilicus lithophilus Germar, 1842, Munster Betrag, VIII, 87; pi. 9, f. 7. Elcana lithophila Handlirsch, 1906, Foss, Ins., 517. Length of fore wing, 20 mm. Rs has 10 branches in all specimens with distinct venation. In the Carnegie Museum there is one specimen. No. 5124; and in the Mu- seum of Comparative Zoology two specimens. c Family LOCUSTOPSIDZE. Genus Conocephalites Handlirsch. 19. Conocephalites capito Deichmuller. Conocephalites capito Deichmuller, 1886, Mitt. Koenigl. Mineral. -Geol. Praehist. Mus. Dresd,, VII, 24; pi. 2, f. 2. Length of fore wing, 40 mm. This is a rare species, of which one specimen (No. 3781) is in the Carnegie Museum and another in the Museum of Comparative Zoo- ology. Family LOCUSTID^. Genus Pycnophlebia Deichmuller. 20. Pycnophlebia speciosa (Germar). Locusta speciosa Germar, 1839, Verb. L. Car. Ak., XIX, 198; pi. 21, f. i. Pycnophlebia speciosa Deichmuller, 1886, Mitt. Koenigl. Mineral. -Geol. Praehist. Mus. Dresd., VII, 20; pi. 30, f. 4. Length of fore wing, 90-95 mm. This large and conspicuous species is common in the limestone. It has been completely figured by Deichmuller and needs no further 118 Annals of the Carnegie Museum. description. In the Carnegie collection there are two specimens, Nos. 3783-3784 and 3793. In the Museum of Comparative Zoology there are nine specimens, of which one (No. 6099) is very finely pre- served. 21. Pycnophlebia minor Handlirsch. Pycnophlebia minor Handlirsch, 1906, Foss. Ins., 520. Length of fore wing, 70 mm. This is a much smaller and rarer species than the foregoing. The venation, which is well preserved in one Carnegie specimen (No. 5127) is apparently very similar (if not identical) with that of speciosa. There are two other specimens in the Carnegie Museum (5128, 5129) and one in the Museum of Comparative Zoology. Order PHASMODEA. Family CHRESMODIDT:. Genus Chresmoda Germar. 22. Chresmoda obscura Germar. Chresmoda obscura Germar, 1839, Verb. L. Car. Ak., XIX, 201; pi. 22, f. 4; Deich- miiller, 1886, Mitt. Koenigl. Mineral. -Geol. Praehist. Mus. Dresd., VII, 10; pi. I, ff. 7-12. Handlirsch, 1906, Foss. Ins., 525; pi. 44, ff. 15, 19. This striking insect caused much confusion to the older students of the lithographic insects; Germar considered one specimen to be a Mantid and another to be a Reduviid (Hemiptera); Oppenheim re- garded it as an aquatic Homopteron, allied to the HydrometridcB; and Deichmtiller thought it was an Acridiid. Handlirsch, however, demonstrated conclusive!}’ that the fossil was really a Phasmid, possessing seventeen segmented antennae and distinct cerci, as well as the wing-venation characteristic of the Phasmids. More recently Martynov has reviewed the evidence and established the suborder Chresmododea to include the families ChresmodidcB, Necrophasmidce (Lias of Turkestan), Aerophasmidce (Trias of Australia, and Lias of Turkestan). Handlirsch has given a complete account of this fossil and there is little to add. Not only are the adults present (length of body 30-40 mm.), but very small immature specimens, with a body only 8 mm. Carpenter, F. M.: Jurassic Insects from Solenhofen. 119 long, likewise occur. The Carnegie collection is especially rich in specimens of ohscura, there being a total of eighteen: Nos. 3776-3777, 3778-3779- 3780, 5131-5132, 5133-5134, 5135-5136, 5137-5138, 5139, 5140, 5141, 5142, 5143, 5144-5145, 5146, 5147, 5148, 5149 are parts of the Bayet Collection; No. 3775 was received in exchange from the Paleontological Museum of Bavaria, in Munich. No. 3778 is a fine nymph. In the Museum of Comparative Zoology there are thirteen specimens. No. 6105 being the best I have seen. Order HEMIPTERA. Both the Heteroptera and the Homoptera are represented in the lithographic limestone. The Heteroptera are of unsual interest, since all the species belong to groups which were undoubtedly aquatic, as the BelostomatidcB, Nepidce, and Notonectidoe. In view of this fact, and particularly in view of the abundance of the Belostomatidce, it does not seem unlikely that these insects actually lived as adults in the waters that deposited the limestone, regardless of the fact that it was unquestionably saline. It is almost certain, however, that they did not breed there, but flew after the emergence of the adult from some neighboring fresh-water lake. Family BELOSTOMATIDTi. Genus Mesobelostomum Haase. 23. Mesobelostomum deperditum (Germar) Scarabceides deperditum Germar, Verb. L. Car. Ak., XIX, 218; pi. 23, f. 17. Mesobelostomum deperditum Haase, 1890, N. Jahr. Mineral., II, 88. This common species is strikingly close to the existing Belostomum. Most of the specimens are poorly preserved, but some show details of the wing- as well as body-structure. None of the specimens before me are exceptionally well preserved, however. There are eleven in the Carnegie Museum, of which Nos. 3843, 5150, 5151, 5152, 5153, 5154, 5155, 5156, 5210 are derived from the Bayet Collection; 3845 was obtained from the Paleontological Museum of Bavaria, in Mun- ich, and 1219 was bought from Ward’s Establishment. There are nineteen in the Museum of Comparative Zoology. 120 Annals of the Carnegie Museum. Family NEPID^F:. Genus Mesonepa Handlirsch. 24. Mesonepa primordialis (Germar). Nepa primordialis Germar, 1839, Verb. L. Car. Ak., XIX, 206; pi. 22, f. 7. Mesonepa primordialis Handlirsch, 1906, Foss. Ins., 637; pi. 51, f. 20. This is an obscure insect, no complete specimens yet having been found. The general habitus of the body indicates that it is a relative of the recent Nepa. In the Carnegie Museum there are two speci- mens: Nos. 5157-5158, 5159-5160. There are also three in the Mu- seum of Comparative Zoology. 25. Mesonepa minor Handlirsch. Mesonepa minor Handlirsch, 1906, Foss. Ins., 637; pi. 51, f. 21. Similar to the preceding insect, but much smaller. In the Carnegie Collection there are three specimens. Nos. 3842, 5161-5162, 5163- 5164. In the Museum of Comparative Zoology there are five. Family NOTONECTIDT:. Genus Notonectites Handlirsch. 26. Notonectites elterleini (Deichmiiller). Notonecta elterleini Deichmiiller, 1886, Mitt. Koenigl. Mineral. -Geol. Praehist. Mus. Dresd., VII, 64; pi. 5, f. 67. Notonectites elterleini Handlirsch, 1906, Foss. Ins., 639; pi. 51, f. 28. This small Notonectid is represented by one specimen in the Mu- seum of Comparative Zoology (No. 6151).^ Nothing is known of its general habitus. Order HOMOPTERA. Family PAL^ONTINID^. Genus Limacodites Handlirsch. 27. Limacodites mesozoicus Handlirsch. Limacodites mesozoicus Handlirsch, 1906, Foss. Ins., 622; pi. 49, ff. 12-15. Length of fore wing, 35-40 mm. This fossil, together with the others in the family, were placed by Handlirsch in the Lepidoptera, but Tillyard demonstrated (1921) that they are really Homoptera, allied to the recent Cicadid(E\ and Martynov in a more recent paper (1930), based on a re-examination of Carpenter, F. M.: Jurassic Insects from Solenhofen 121 some of the type specimens from other formations, has substantiated Tillyard’s conclusions. L. mesozoiciis is represented in the Carnegie collection by one specimen (No. 5165), and in the Harvard collection by three specimens. None of them are well preserved. Genus Archepsyche Handlirsch. 28. Archepsyche eichstattensis Handlirsch. Archepsyche eichstattensis Handlirsch, 1906, Foss. Ins., 624; pi. 50, ff. 1-2. Length of fore wing, 25-29 mm. In general appearance similar to the preceding, but smaller. The venation has been determined in several specimens, but is not clear in the material at hand; one specimen (No. 5166) in the Carnegie collection and two in the Museum of Comparative Zoology. Genus Eocicada Oppenheim. 29. Eocicada microcephala Oppenheim Eocicada microcephala Oppenheim, 1881, Palaeontogr., XXXIV, 222; pi. 31, f. 30; Handlirsch, 1906, Foss, Ins., 626; pi. 50, ff. 7-9. Length of fore wing, 70-75 mm. This remarkable fossil is distinguished by the short, stout body and the proportionally long wings. No specimens are in the Carnegie Museum and only one is in the Museum of Comparative Zoology. Order NEUROPTERA. The Neuroptera are not at all common in the lithographic limestone, but enough good specimens have been found to give an idea of the general composition of the fauna. Handlirsch recognizes four families, NymphitidcB, ProhemerobiidcB, MesochrysopidcB, and KilligrammidcB. Specimens of each of these groups except the Killigrammidce, which is known from a single specimen, are present in the collections placed before me for study. Family NYMPHITIDT:. Genus Mesonymphes Carpenter. 30. Mesonymphes hageni Carpenter. Mesonymphes hageni Carpenter, Psyche, 1929, pp. 35, 190; f. i. Length of fore wing, 40 mm. The type specimen (No. 1999) is in the Museum of Comparative Zoology. 122 Annals of the Carnegie Museum. Family PROHEMEROBIID.F:. Genus Osmylites Haase. 31. Osmylites protogaeus (Hagen). Chrysopa protogceus Hagen, 1862, Paleeontogr., X, 108. Osmylites protogceus Haase, 1890, N. Jahr. Mineral., II, 22; f. 10. Length of fore wing, 25-28 mm. One of the smallest of the Neuroptera from Solenhofen, this obscure species is represented in the Carnegie Museum by one specimen (Nos. 5167-5168), and another in the Museum of Comparative Zoology. The venation is only partially known, and in neither of these specimens can I discern any features additional to those al- ready described. Genus Archegetes Handlirsch. 32. Archegetes neuropterorum Handlirsch. Archegetes neuropterorum Handlirsch, 1906, p. 605; pi. 48, ff. 1-2. Length of fore wing, 70-75 mm. In the Museum of Comparative Zoology there is one specimen, very close to the one described by Handlirsch, but a little smaller. Genus Gigantotermes Haase. 33. Gigantotermes excelsus (Hagen). Apochrysa excelsus Hagen, 1862, Palseontogr., X, 108. Gigantotermes excelsus Haase, 1890, N. Jahr. Mineral., H, 12. Length of fore wing, 52-59 mm. One specimen (No. 5169) in the Carnegie Museum. All four wings are preserved, but only the faintest traces of the venation. Eamily MESOCHRYSOPID^ Handlirsch. Genus Mesotermes Haase. 34. Mesotermes heros (Hagen). Termes heros Hagen, 1862, Palaeontogr., X, 114; pi. 15, f. i. Mesotermes heros Haase, 1890, N. Jahr. Mineral., II, 13. Length of fore wing, 45-48 mm. The type specimen (No. 1996) is in the Museum of Comparative Zoology, as well as another specimen, which is well preserved. The Carpenter, F. M.: Jurassic Insects from Solenhofen. 123 venation in the latter is very clear and demonstrates that heros is a Mesochrysopid, as Handlirsch suspected. The species is so close to Mesochrysopa zitteli Meunier, differing only in size, that the two species undoubtedly belong to the same genus. However, if this view is taken, then the appropriate generic name Mesochrysopa will be- come Mesotermes and the family Mesotermitidce, which is very mis- leading. For this reason, I suggest that regardless of the close affini- ties of heros and zitteli, the generic separation be retained. NEUROPTERA, incertse sedis. 35. “Corydalis” vetusta Oppenheim. (Fig. 9) Corydalis vetusta Hagen, 1862 (not described), Palaeontogr., X. — Oppenheim, 1888, Palaeontogr., XXXIV, pi. 30, f. 3; pi. 31, f. 31. — Meunier, 1898, Arch. Mus. Teyler, II, (6); pi. 18, ff. 50-51. Length of fore wing, 40 mm. This obscure insect has been known by several specimens, which showed the general habitus of the body only, including a large elongate head. Handlirsch suggests that the insect is a Sialid or a Perlid. In the Carnegie Museum there is one well preserved specimen (No. 3846), showing the wings as well as the characteristic body. Un- fortunately, liowever, only a portion of the fore wing is clear enough Fig. 9. " Cory delis" vetusta Hagen, part of fore wing (Specimen No. 3846 Cam. Mus.) so that the veins can be distinguished. Enough is preserved, I believe, to show that the insect is a Neuropteron, probably one of the Mega- loptera\ the two parallel branches of Rs, which is parallel to Ri, are certainly more characteristic of the Neuroptera than of the Perlids. 124 Annals of the Carnegie Museum. However, since the apex of the wing is missing, it is impossible to state with certainty just to what family of Neuroptera this fossil is most closely related. Order COLEOPTERA. • The Coleoptera of the lithographic limestone are the most un- satisfactory of all the insects in the formation. Nearly always the whole insect is preserved with the elytra outspread, but with the hind wing folded up or twisted in such a manner that the venation is not de- cipherable. This condition and the absence of taxonomic characteris- tics in the elytra alone prevent us from determining even the family position with any degree of certainty. The most that can be said is that beetles were common in the vicinity of the water, which de- posited the limestone; and that a diversity of forms existed. Hand- lirsch recognizes forty species, but I believe that many of these are synonymous. In the Carnegie Museum and the Museum of Comparative Zoology the following species are present:* Pyrochroophana brevipes Deich- miiller (5170), Ditomorptera dubia Germar (3785-3786), D. minor Deichmuller (3794-5172, 5171, 5173, 5174, 5i75)» Sphcerodermopsis j urassica Oppenheim (3847, 5176-5177), Actea sphinx Germar (3790, 3795» 5178-5179, 5180, 5181, 5182), Malmelater costeri Weyenbergh (5183, 5184), Pseiidohydrophilus avitus Heyden (3788, 5185-5186), and Procalosoma major Handlirsch (3787). Order TRICHOPTERA. Specimens representing this order are extremely rare in the litho- graphic shales. In none of these has the venation been so distinct that a satisfactory concept of the wing could be reached, and there is a possibility that the fossils belong to the allied order Paratrichoptera, which is amply represented in the Jurassic of Turkestan. The only specimen of Trichoptera from Solenhofen, which I have seen is prob- ably Archotaiillus bavaricus Handlirsch (No. 5187), in the Carnegie Museum. The complete insect is preserved, even the long antennae; but none of the veins can be distinguished. *The numbers following the names are those representing specimens in the Bayet Collection. Carpenter, F. M.: Jurassic Insects from Solenhofen. 125 Order HYMENOPTERA. Family PSEUDOSIRICID^. Genus PSEUDOSIREX Weyenbergh. (Fig. lo) The Hymenoptera of Solenhofen, although apparently belonging to a single genus and very few species, are perhaps the most important of all the insects in the formation. Until the discovery of Hymenoptera in the Jurassic of Turkestan in 1927, these specimens have been al- most the sole representatives of the order in the Mesozoic. Most of the fossils show only the general habitus of the wings and body, but these are so characteristic of the siricoid wasps that even the older students of fossil insects recognized them as belonging to that group. Even poorly preserved specimens show the stout ovipositor of the fe- male very plainly, and good specimens possess the numerous wrinkles in the distal part of the wings, typical of the siricoid wasps. The members of this genus are common in the limestone and, like the recent siricids, are highly variable in size; as a consequence, four- teen species have been described, based largely on differences in dimensions. Handlirsch lists all of these as distinct species, but sug- gests that some are synonyms. In the material before me there are forty-six specimens of Pseudosirex, and from my study of them I am led to believe that there are only two valid species: nanus Handlirsch and schroeteri (Germar) (genotype), which includes all the other species. Nanus is distinguished by its very small size, the fore wing being only 25 mm. long. Schroeteri, as I consider it, has a length of wing which varies from 30-60 mm., most specimens being about 40 mm. In the collections at hand there is a series with a complete gradation in sizes between these extremes. The smaller specimens are probably males, and the larger females. It is even possible that nanus is a small male of schroeteri, for there is no apparent difference in venation. Schroeteri is represented in the Carnegie collection by eleven specimens (Nos. 3799-3800, 3805-3806, 3809, 3810-5199, 5200-5201, 5202-5203, 5204-5205, 5206, 5207, 5208, 5209), and in the Museum of Com- parative Zoology by thirty-one specimens. Specimen No. 3810 in the Carnegie Museum is unusually well preserved, showing all but the distal parts of the veins. Nanus is represented in the Carnegie Mu- seum by several poor specimens and one other (No. 5189), which I believe is the best specimen of Pseudosirex that has been found; the two fore wings and the body are preserved, the wings being outstretched 126 Annals of the Carnegie Museum. on each side. The Carnegie Museum also lists Nos. 3803-3804, 5188, 5189, 5190-5191, 5192-5193, 5194-5195, 5196, 5197, 5198, 3801-3802. In spite of the abundance of specimens of Pseudosirex the venation has been hitherto more or less uncertain. Figures of the wings given by Deichmiiller, Oppenheim, Weyenbergh, and Handlirsch were very generalized, only the heaviest veins being indicated. Tillyard has published a complete analysis of the venation of the wings (1927), based upon specimens in the Paleontological Museum at Munich, although he states that in none of these specimens could the veins be made out with absolute accuracy, owing to the wrinkles in the distal half of the membrane. In the specimen of nanus in the Carnegie Fig. 10. Pseudosirex nanus Handlirsch, fore wing; specimen No. 5189, Carnegie Museum. For convenience I have used the venational nomenclature suggested by Bradley (“Guide to the Wings of Insects”), without, however, in- tending to imply a complete acceptance of this interpretation. Museum, as well as in the above mentioned specimen of schroeteri, the veins are exceptionally clear; in the former specimen they are pre- served as brown or yellow-brown lines, instead of being merely ridges or grooves. In figure 10 I have reproduced a detailed drawing of the fore wing of this fossil, in which I have included only the structures which are clear enough to be positive. There may be additional cross- veins between Rs and Mi-f2, or Mi-f2 and M3 + 4inthe distal part of the wing, but I can see no traces of them in the fossil. It will readily be noted that there are numerous differences between the venation as I have represented it, and as it was figured by Tillyard. An enumeration of these differences is hardly necessary, but they comprise such important features as the position of Sc with respect to R, the point of termination of Sc, the position of the pterostigma, the Carpenter, F. M.: Jurassic Insects from Solenhofen. 127 number of branches in Rs, and the point of termination of Cui, 2A, and 3A; as well as minor characters, such as the shape of the wing and the cells. These discrepancies are far too great to be due to individual variation, but there remain two possible explanations: either the speci- mens which Tillyard figured belong to an entirely different species (or genus) than those which I have studied; or they were not well enough preserved to enable him to determine accurately the course of the veins. I think that there can be no question that the speci- mens, upon which I have worked, are the true Pseudosirex; the vena- tion in the specimen of schroeteri is precisely the same as that in the specimen of nanus, so far as it can be distinguished; so that if Till- yard’s specimens were as he believed them to be, they probably belong to a different genus. This Carnegie specimen of nanus enables us to characterize the family Psetidosirex more definitely than before: the costal space is narrow, the subcosta being very close to the radius, almost contiguous to it; Sc terminates on Ri in the region of the pterostigma; the pterostigma is well developed, Ri being swollen and thickened, and the costal space being chitinized at this point; M diverges from Ri almost at right angles, instead of being directed basally as in the recent Slricoids; two cross-veins are present between Rs and Ri, in the region of the pterostigma; 3A is slightly removed from the posterior margin and fuses apically with Cui+Cu2. The venation of Pseudosirex seems to approach that of Xeris much more closely than that of any of the other recent genera.^ If we bear in mind that in the distal part of the fossil wing there may be one or tVv'o cross-veins, which I have not been able to see, the similarity to Xeris is very striking (Figure ii). M in Pseudosirex is more primi- '^I am indebted to Professor C. T. Brues for furnishing me with specimens of Siricida for comparison with Pseudosirex. 128 Annals of the Carnegie Museum. live in its origin and perhaps 3A is also; but the venation is remarkably modern for a Jurassic species, especially for one which is the oldest record of the Hymenoptera. BIBLIOGRAPHY Carpenter, F. M. 1931. The lower Permian Insects of Kansas. Part 2. PalcBodictyoptera, Protodonata, and Odonata. Amer. Journ. Sci., (Ser. 45), XXI: 97-139. Deichmuller, J. V. 1886. Die Insecten aus dem lithographischen Schiefer im Dresdener Museum. Mitt. Konigl. Alineral.-Geol. Pr^hist. Mus., VII, 1-88. Germar, E. F. 1837. Uber die versteinerten Insecten des Jura- schiefers von Solenhofen aus der Sammlung des Grafen zu Munster. Oken. Isis, IV, 1837: 421-424. 1839. Die versteinerten Insecten Solenhofens. Nova Acta Acad. Leop. Carol., XIX, 187-222. 1842. Beschreibung einiger neuen fossilen Insecten (I) in dem lithographischen Schiefern Baierns und (II) im Schieferthon des Steinkohlengebirges von Wettin. Munster, Beitr. Heft. 5: 79-94- Handlirsch, a. 1906-1908. Die fossilen Insecten. Leipzig. Koehler, F. 1826. Ueber den Libellulit von Solenhofen. Zeit. fiir Mineral., II, 231-233. Linden, P. L. van den. 1827. Notice sur une empreinte d’insecte renformee dans un echantillon de calcaire schisteaux de Sol- lenhoven, en Baviere. Nouv. Alem. Acad. Roy. Soc., Brux., 4: 245-253. Martynov, A. V. 1928. A new fossil form of Phasmatodea from Galkino (Turkestan) and on Mesozoic Phazsmids in general. Ann. Mag. Nat. Hist., (10) 1:319-328. 1930. To the Morphology and systematic position of the family Palaeontinidse Handlirsch, with a description of a new form from Ust-baley, Siberia. Annuaire Soc. Paleontol. de Russie, 9: 93-122. Needham, J. G. 1903. A genealogic study of dragon-fly wing vena- tion. Proc. U. S. Nat. Mus., 26: 703-764. 1907. Two new genera of ^Kschninae. Bull. Amer. Mus. Nat. Hist., 23: 141-144. Bibliography. 129 Oppenheim, P. 1888. Die Insectenwelt des lithographischen Schiefers in Bayern. Paleontogr., XXXIV, 215-247. SCHMIDEL, K. C. 1782. Fortgesezte Vorstellung einiger merkwiirdi- gen Versteinerungen mit kurzen Anmerkungen versehen. Niirnberg., pp. 1-45. ScHROTER, J. S. 1784. Neue Litteratur und Beytrage zur Kenntniss der Naturgeschichte vorziiglich der Conchylien und Fossilen. Leipzig, pp. 1-550. Tillyard, R. J. 1917. Mesozoic Insects of Queensland. No. 2. The Fossil Dragon-fly TLschnidiopsis (/Eschna) flindersiensis Woodward, from the Rolling Downs (Cretaceous) Series. Proc. Linn. Soc. N. S. Wales, 42 (4): 676-692. 1921. Same, No. 8. Hemiptera Homoptera (cont’d). The Genus Mesogereon, with a Discussion of its Relationship with the Jurassic Palaeontinidae. Proc. Linn. Soc. N. S. Wales, 46 (2): 270-284. 1925. The British Liassic Dragon-flies. Publ. Brit. Mus., Foss. Ins. No. 1 : 1 138. Walther, j. K. 1904. Die Fauna der Solnhofenen Plattenklake. Festsch. Geburt. Haeckel, pp. 135-214. Weyenbergh, H. 1869. Sur les insectes fossiles du calcaire litho- graphique de la Baviere qui se trouvent au Musee Teyler. Archiv. Mus. Teyler, 2: 247-294. 1873. Notes sur quelques insectes du calcaire jurassique de la Baviere. Archiv. Mus. Teyler, 3: 234-240. 1874. Enumeration systematique des especes qui forment la fauna entomologique de la periode Mesozoique de la Baviere. Period. Zook, Org. Soc. Ent. Argent., i: 87-106. 1874. Varia zoologica et palseontologica. Period. Zook, Org. Soc. Ent. Argent., i: 72-1 ii. IX. A NEW TURTLE FROM THE DUCHESNE OLIGOCENE OF THE UINTA BASIN, NORTHEASTERN UTAH. By John Clark.* During the summer of 1931, the Carnegie Museum field-party under Mr. J. LeRoy Kay discovered and collected a fossil turtle from the basal Oligocene of the Uinta Basin, Utah. The specimen was recovered from two large blocks, which had broken from massive light gray sandstone weathering brown at the surface. Although the two por- tions into which the shell had been broken nowhere made contact with each other, the matrix of the blocks made such broad and excellent contacts that the shell could be restored exactly as it had been before the breakage occurred. All through the sandstone were masses of poorly preserved vegetable matter, including several parts of leaves, which resembled maple- or oak-leaves; and one small frag- ment, which Dr. O. E. Jennings, Curator of the Section of Botany, Carnegie Museum, has identified as either the cone of a sequoia, or the base of an alder-stem. Study of the specimen was conducted under the direction of Mr. 0. A. Peterson, Curator of Fossil Mammals, Section of Vertebrate Paleontology, Carnegie Museum. The author is indebted to Mr. Peterson and Mr. Kay for assistance and encouragement in the pre- paration of this paper; to Messrs. L. S. Coggeshall and S. Agostini, preparators, for advice and assistance in freeing the specimen from the matrix; to Mr. Sydney Prentice for his patience and skill in making the drawings; and to Dr. W. J. Holland for assistance in coining the generic name and for finally revising and editing the paper. Measure- ments of early Tertiary species of the genera Hadriamis, Stylemys, and Testiido, used throughout the text, are those published by Hay^ and Gilmore.^ Mr. Barnum Brown of the American Museum of *Submitted by John Clark, B.S., 1931, University of Illinois, to the Graduate School of the University of Pittsburgh in partial fulfilment of the requirements for the degree of Master of Science. ^Hay, O. P. Fossil Turtles of North America. Carnegie Institution of Wash- ington. 1908. ^Gilmore, C. W. The Fossil Turtles of the Uinta Formation. Memoirs of the Carnegie Museum, Vol. VII, No. 2, Nov. 1915. 131 132 Annals of the Carnegie Museum. Natural History has very kindly made available for comparison the pelvic girdles of Hadrianus and Testudo, A. M. N. H., No. 1068 and No. 1160. Family TESTUDINID^ Gray. Genus Cymatholcus^ gen. nov. Cymatholcus longus Clark, sp. nov. Type: Carapace; plastron; pelvis; pectoral girdle; both sides com- plete series of caudals; two complete and one partially complete cervical vertebrae (C. M. Cat. Vert. Foss., No. 11,891). Locality: ‘‘Hoot Owl Canyon,” fifteen miles southwest of Vernal, Uinta County, Utah. Horizon: Duchesne beds, basal Oligocene. Generic characters: Sulcus between marginal scutes and plastral scutes strongly looped. Sulcus between costal scutes and marginal scutes ventral to costo-peripheral suture. Costo-peripheral suture minutely and openly, but definitely, digitated. Differentiation of costal bones about midway between that of Hadrianus on the one hand and of Stylemys and Testudo on the other. Shell longer and higher in proportion to width than in other genera of the family. Anterior lobe of plastron with lip conforming to the general contour of the lobe. Bridge short. Posterior lobe very long. Antero-posterior dimen- sion of pelvis about equal to width of pelvis across dorsal rims of acetabula. Pubes long, lateral borders making a very low angle with the midline. External tail very short or absent. Specific characters: Lateral border of first vertebral scute flared anteriorly. Lateral border of third vertebral bracket-shaped. Anterior border of plastral lip thick, semi-circular in cross-section. Sulci of plastron deeply incised. Pectoral scutes very narrow, with anterior and posterior borders parallel. Deep posterior notch in plastron. Epipubes long antero-posteriorly, narrow transversely. 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'-'F-Ti-. ,Ay r 4As/A' 4#^ Mf; ( V , A A ' ■ A, •,/ , • < ' •A'F 7' -,’ A/.. >4'F ■'■/' r " 'Hi-' . ./y , / y .• ^'-,»s,;' -; ^F, . \, ;. i‘ /A- «F4, , A/ A'F ‘ ' /' V A7i -F. ^ FA, 4 .-P ^ t p 4 ' N A'A r N aA'f 4._ 4 yP 4 ,^.A''AA;^Wv;\^ ' pyi^AAAF A-. 4.4/444 < .AyA- vkkk4y, - u V Ay, .' , .\", ,4 '' 4'’ F ^ ’• F F F,- F r,|' l: /( p ,/ j i 'v.AF'}' .V ‘"F.FAj-:a 7aa.f Av4AA:iiF ! . ) Jl' 4nAa‘ , 44-’ '’ rP'AyV" /"'FA'’" ^ , / Yf 7 i'f c / ^ Ay ..N" ' 4PaS» P -'"P AvPP, i Editorial Notes . . 93-96 VIII. Jurassic Insects from Solenhofen in the Carnegie Mu- seum and the Museum of Comparative Zoology. By F. M. Carpenter 97-129 IX. A New Turtle from the Duchesne Oligocene of the Uinta Basin, Northeastern Utah. By John Clark . 131-160 X. A New Anosteirid from the Uinta Eocene. By John Clark 161-170 XI. Neotropical Bats in the Carnegie Museum. By Colin Campbell Sanborn . . . . . . .171-183 ^ j ( Publications of the Carnegie Museum Serial No. 158 ANNALS OF THE V CARNEGIE MUSEUM VoL. XXI, No. 4. j ' July, 1933 (f^ AUG23 1^3- :^?''ONAL For sale by Messrs. Wheldon & Wesley, Ltd., 2-4 Arthur St., New Oxford St., London, W. C. 2, England; Messrs. R. Friedlander & Sohn, II Karlstrasse, Berlin, N. W. 6, Germany; Maruzen Company ^ Ltd., 6 Nihonbashi Tori-Nichome, Tokyo, Japan; and at the Carnegie ! Museum, Schenley Park, Pittsburgh, Pa., U. S. A. ' . --^ . ' \ ■' ■ ' '' ' P / . -. , V- sm::. * f;^'v' 'i>'' i'.'-r-':; < .r. :,-^ ^ 'A / f, - - Sv/' ■r'm> : " ■a- -A \' Y \ v'V-''- ^;'';p ,y . ,. ■''V-'-f::, ■^V- V- ■)y rr'ijTv/ ■: ;v tr-v :^(: Vrr -V ,4:^1 ^ !■ ^ ■ yr^' V-' X , ^,:, ^r rY^. P'\.f -‘ V-: X ■■^" 'Y>Y: . : ,: ;■: r ;v:i:v V.- •• ^■■ .' 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Xxx:x,x;;,x Xyyvx:,x,-xy-:,:;:y y-'Y-Yii ,1' .■•X.,v. x,x.xx:-'. ■ - -A- A ■ ^x. ,-' ■':■■'■•■ XX ---- ‘X ■ . '■ '- ,. ■' {' '.i/.' ' A. 'A' Y \' ' ' - p Y'Y-y -Ay ■ ^ 'Y ^ ■" ■■'■„ I vA' 4)y;A,x.;-XA ' -.4 XyX.XU -■'A ■■■X-lA^pAA:,: PXA- VA Ay ‘' \ y\y A. !4x7P :,- Ax' - yx^, y- y.yxf,; y- ..A , ,:x>4AA>' 77 A ■,x^ V- ■ .— avA).^XAX,x V . yAX, -X. V' ' X. ' ^'x A’.pAy X -A. ■;.. .'x:-^'. 4-4(4 v7 -- •■ '>• A •■V/.'-x' X A ■ X' . , •• .A P -A.M I ■ X ':■ . A. <' xA aW T A '. Y./ 4. A ' “• ' A ''A:..A:: --.mi 'Ay A '.p ■A-Am- - P tiA|X.:A' lA .'hi'. 'Af.i ANNALS OF THE CARNEGIE MUSEUM VOLUME XXI, No. 4 Editorial Notes. This issue of the Annals is devoted to the publication of a very important monograph by McAtee and Malloch upon the subfamily Thyreocorince belonging to the family PentatomidcB of the Hemiptera- Heterocera. It represents the labors of the authors covering a number of years, in which they have consulted not only all the material con- tained in the great museums of America, but of Europe. It lays a secure foundation for future study in this hitherto little investigated group of insects. It adds one hundred and fourteen new species, sub- species, and varieties to those hitherto described. Taken altogether it is the most important contribution which has been made to our knowledge of a neglected, but interesting, subfamily of the Penta- tomidce. The Editor of the Annals for the first time in many years refrained from taking a vacation during the summer. A measure of physical infirmity has not prevented him from attending to his editorial duties, which have consisted in preparing for publication not only this volume of the Annals, but the Twelfth Volume of the Memoirs, which embodies the results of Mr. George M. Sutton’s researches on South- ampton Island. The first part of this volume of the Memoirs con- taining the Prefatory and Introductory matter, as well as an ex- tensive Bibliography, was issued from the press on March 28th. The part relating to the Ornithology of the Island was issued on May 31st, and that dealing with the Mammals on August 4, 1932. 185 186 Annals of the Carnegie Museum. The section of the volume dealing with the Invertebrates and Bot- any will shortly appear. It is needless to say that this great work, which embodies every- thing known up to date in reference to the great island of South- ampton in Hudson Bay, is a most important contribution to our knowledge of that hitherto little explored territory, which in size equals one-half of the state of Pennsylvania. The fauna and flora of this island are more nearly like that of Baffinland and Greenland than territories lying westward and even farther north. The islands and peninsulas, ranging toward the Pole immediately west of Davis Strait and Baffin Bay, in their climatic conditions are more strictly arctic, corresponding with Greenland, than the lands drained by the Mackenzie and Yukon Rivers. The latter, including Alaska, are more or less affected by the warm currents of the Pacific Ocean running northward from equatorial regions and corresponding in their action to the Gulf Stream in the Atlantic, which gives to western Europe its temperate climate. Aliss Elizabeth D. Gill, the capable Secretary of the Editor of these Annals, was absent from the Museum from July 2 to August 26. She joined the party which sailed from New York on board the “S. S. Lancastria” for Mediterranean and northern European lands. She returns full of enthusiasm and pleasant memories of northern Africa, Ital}^ Scandinavia, and the countries southward. Necessarily her stay in Madeira, Algiers, Italy, and other countries which she visited, was brief. The last days of her journey were spent in Paris. During her visit she took occasion to resort to numerous scientific institutions, with which her connection with the Carnegie Museum made her more or less familiar. She brings back pleasant memories of the Oceanic Institute at Monaco, the museums in Rome, Bergen, Copenhagen, and Paris. At The Hague the party devoted themselves imong other things to a visit to The Peace Palace founded by Mr. Andrew Carnegie, where she was delighted to find a very lifelike bust of the founder of the Carnegie Museum. Dr. Avinoff, the Director of the Carnegie Museum, during the past summer spent about two months in Europe. At Geneva he attended a meeting of a committee convened by the International Institute for Intellectual Cooperation for the purpose of organizing an international Editorial Notes. 187 center of information for museums of science. England, Germany, France and the United States were represented at the sessions of this committee, of which Dr. Avinoff was made the Chairman. The other members of the committee are Sir Henry Flett, Director of the Geo- logical Museum in London; Dr. Unverzagt, Director of the Museum of Archeology and Ethnology in Berlin; and Dr. Lemoine, Director of the Museum d’Histoire Naturelle and the Jardin des Plantes in Paris. The chief function of the new organization will be to establish a center of information and documentation upon all questions concerning the scientific museums of the world, this material to be assembled and kept at the disposal of interested institutions and individuals upon request. The center will serve gradually to collect information as to material possessed by scientific museums; data on technical methods and practical museology; lists of duplicates, models, casts, and pub- lications, and a register of specialists in various branches. Through the medium of such a clearing house of information the exchange of materials and curatorial services will be greatly facilitated. The recommendations of this committee were unanimously adopted by the International Institute. Mme. Curie, as one of the members of the board, was particularly satisfied with the creation of this new instrument of international good-will in the realm of science and edu- cation. It is the hope of the committee that the formation of this Center of Information for Museums of Science, as it will now be known, will inspire the formation of national associations of museums in countries where such unions have not yet been organized. The plan approved by the Institute was subsequently offered to the considera- tion of the Entomological Congress in Paris, where representatives of scientific museums of some twenty countries were present. With a few additional suggestions the Congress indorsed the plan for the creation of the center and many of the entomologists pledged their assistance in the collation of necessary data. Dr. Avinoff attended the sessions of the Fifth International Ento- mological Congress as a delegate from the Carnegie Institute and read a paper comparing the Rhopalocerous Fauna of North America with that of the temperate regions in the eastern hemisphere. At the centenary of the Entomological Society of France, which immediately preceded the Congress, Dr. Avinoff conveyed greetings in the name of the Museum, the University of Pittsburgh, and the American Association of Museums. The Entomological Congress adjourned to 188 Annals of the Carnegie Museum. meet in Madrid three years hence, having elected Dr. Ignacio Bolivar y Urrutia as President of the coming congress. The field collectors of the Section of Paleontology consisting of Mr. J. LeRoy Kay, Mr. J. J. Burke, and their volunteer assistant, Mr. Mather Greenleaf Elliott, resumed the work which has been recently undertaken in the Lower Oligocene near Vernal, Utah. Their work in this field continued until the first of July, when, through the liberality of Mr. George H. Clapp, their further stay in that part of the world was extended until September. In the interval they have examined the country for about sixty miles around Vernal as a center and have secured valuable data as well as some apparently new species. Mr. W. E. C. Todd and Mr. George M. Sutton volunteered on their own account to go to Saskatchewan to collect birds. They were assisted by Mr. Albert C. Lloyd who shortly before their departure had been sent from the Museum to that region and accompanied Mr. Todd and Mr. Sutton during their exploration of the prairie region of that part of the world. The result was a collection of about seven hundred birds and seventy sets of eggs, some of them hitherto lacking in our collection. Mr. Todd before his return made a flying visit to Banff in Alberta, where he succeeded in making some important observations and collections. Dr. Tolmachoff, the Curator of Invertebrate Fossils and Mr. R. L. Fricke during the month of August joined our field party in Utah. Both made collections which they have returned to the Museum. The completion of the dam which will result in the ultimate flood- ing of Pymatuning Swamp prompted special efforts to collect, while still possible, a good representation of the terrestrial fauna of that region. The expense of this investigation was partly defrayed by the Game Commissioners of the State of Pennsylvania. In this connec- tion we are especially indebted to Dr. S. A. Williams who made the preliminary arrangements. Mr. Kenneth Doutt took an active part in supervising the collecting. Mr. Fricke also during April and May was busy there obtaining specimens to be used in the cases sent out by the Section of Education to the schools. Editorial Notes. 189 Mr. M. Graham Netting, Curator of Herpetology, devoted a great deal of time from the first of May to the first of September in collect- ing specimens from various localities in Pennsylvania, West Virginia, and Maryland. He spent two weeks in June teaching on the staff of the Ogleby Nature Training School. His researches resulted in securing many new locality records and in extending the ranges of several species of salamanders and frogs as well as the discovery of a new species of snail in West Virginia. Mr. William C. Darrah spent over a month in northwestern Vir- ginia and southwestern Pennsylvania engaged in collecting and study- ing the fossil plants of the Permian formations which he was able to reach. Mr. Ottmar von Fuehrer went to Mount Rainier National Park and to British Columbia for the purpose of making studies and collecting material for one of the botanical groups now in process of construction. Mr. Ludwig von Fuehrer visited Montenegro and made a collec- tion of about six hundred specimens of birds, the larger portion of which is designed to come to the Carnegie Museum. XII. REVISION OF THE SUBFAMILY THYREOCORINT: OF THE PENTATOMIDT: (HEMIPTERA-HETEROPTERA). By W. L. McAtee and J. R. Malloch of the United States Biological Survey. Table of Contents Introduction Characters of the subfamily .... Scope of the subfamily . . . . Characters for recognition of species and genera Acknowledgments Systematic treatment Key to the genera Systematic arrangement of the genera Cenus Galgiipha Amyot and Serville Key to the subgenera Systematic arrangement of the subgenera Subgenus Euryscytus Horvath . Key to the species Systematic arrangement of the species . Description of species .... Subgenus Bonaria new subgenus Description of species .... Subgenus Gyrocnemis McAtee and Malloch Key to the species ..... Systematic arrangement of the species . Description of species .... Subgenus Ctenopoda new subgenus . Key to the species Systematic arrangement of the species . Description of species .... Subgenus Trepocnemis new subgenus Description of species .... Subgenus Orocoris new subgenus Description of species .... PAGE 194-201 194- 195 195- 196 197-199 200- 201 201 201- 203 203 203-337 203-205 205- 206 206- 237 206-212 2 1 2- 2 1 3 213- 237 237-238 237- 238 238- 270 239- 245 245 246-270 270- 272 270 271 271- 272 272 272 272- 273 273 191 192 Annals of the Carnegie Museum. Subgenus Acrotmetiis Horvath .... . 273-279 Key to the species 274 Systematic arrangement of the species . 274 Description of species • 275-279 Subgenus GalgupJia Amyot and Serville . 279-286 Key to the species . 279-280 Systematic arrangement of the species . 280 Description of species . 280-286 Subgenus Microcompstis Horvath . 286-290 Key to the species ...... 286 Systematic arrangement of the species . 286 Description of species . 287-290 Subgenus Nothocoris McAtee and Malloch . 290-314 Key to the species . 291-294 Systematic arrangement of the species . 294 Description of species • 295-314 Subgenus Psestophleps McAtee and Malloch . . 314-328 Key to the species • 315-317 Systematic arrangement of the species . 317 Description of species . 317-328 Subgenus Pteronomos new subgenus . • 328-333 Key to the species . 328-329 Systematic arrangement of the species . 329 Description of species • 329-333 Subgenus Charoda new subgenus • 333-334 Description of species • 333-334 Subgenus Acritophleps McAtee and Malloch . ■ 334-335 Description of species • 334-335 Subgenus Astiroderma Horvath .... • 335-337 Key to the species 335 Description of species .... • 336-337 -enus Cydnoides Malloch • 338-347 Key to the subgenera 00 Subgenus Cydnoides Malloch .... . 338-342 Key to the species 339 Systematic arrangement of the species 339 Description of species • 339-342 Subgenus Sayocoris new subgenus . 342-345 Key to the species 342 McAtee & Malloch: Revision of the Thyreocorinh£. 193 Systematic arrangement of the species . . . 343 Description of species 343-345 Subgeniis Cosmarioides new subgenus . . .. 345-347 Key to the species 345 Systematic arrangement of the species 345 Description of species 345~347 Genus Alkindus Distant 347“350 Key to the species 348 Systematic arrangement of the species . . 348 Description of species ...... 348-350 Genus Amysso?iotum Horvath 350^351 Genus Pericrepis Horvath 35i“354 Key to the species 352 Systematic arrangement of the species . 352 Description of species 352-354 Genus Pruhleria new genus 354~355 Description of species 354“355 Genus Thyreocoris Schrank 355“357 Description of species 356-357 Genus Godmania Horvath 357“358 Description of species 357“358 Genus Allocoris new name 358-388 Key to the subgenera 359 Subgenus Allocoris new name 359“38i Key to the species 359-362 Systematic arrangement of the species . 362 Description of species 362-381 Subgenus Termapora new subgenus .... 381-382 Description of species 381-382 Subgenus Parapora new subgenus .... 382-388 Key to the species 382 Systematic arrangement of the species . . 383 Description of species 383-388 Subgenus Epipora new subgenus .... 388 Description of species 388 Bibliography 389-392 Appendix i. Notes on the genera Stromhosoma Amyot and Serville and Carrabas Distant .... 393-395 Appendix 2. Summary of Genera and Species . . . 395-396 194 Annals of the Carnegie Museum. INTRODUCTION. The present revision is based on the study of a large proportion of the Thyreocorince, available in the important entomological collections of the world and has had the advantage furthermore of the availability of type-specimens in a high percentage of previously described forms. It has been worked out gradually in our leisure time through several years, and we trust makes a distinct advance in the elucidation of the relationships of this subfamily of bugs. None, however, can be more conscious than the authors, of present defects and shortcomings in the work nor more aware of the future probability that study of additional large collections, particularly from little represented neo- tropical regions, will call for a revision that will make this one seem elementary. Characters of the Subfamily The ThyreocorincB are chiefly black bugs of usually ovoid (Figs. I, 165, 185, 196, and 229)* and gibbous form (Figs. 224-228) with the scutellum covering most, or all, of the abdomen. They have a super- ficial resemblance to certain beetles and on account of their pre- dominantly black color have been called “negro-bugs.” The tarsi, beak, and antennae are characteristically pale, but sometimes are more or less infuscated. Very little is known of the habits of the species, but we believe that both nymphs and adults are phytophagous, as they may sometimes be swept in numbers from low herbage and we know of no records of their being zoophagous. Definite feeding records, however, are lacking; these bugs are not known to affect cultivated plants. The subfamilies ThyreocorincB and CydnincB are distinguished from other subfamilies of the PentatomidcB by the presence of fringes of closel}^ set, stiff, bristles at the apices of the mid and hind coxae (Figs. 3-6), and by the spiracles of the second abdominal segment being in a membranous anterior strip of the sternite (Fig. 7), not in the heavily sclerotized portion. Members of these two subfamilies have tri-segmented tarsi, and distinct tibial bristles, and, with the exception of the Sehirini, have the trichobothria longitudinally ar- ranged (Figs. 7, 105, 106, 1 12, and 223) often nearly in line with the spiracles. The trichobothria, or delicate, pale, sensory hairs (which *A11 references to figures refer to Plates IV-XVIT. McAtee & Malloch: Revision of the Thyreocorinh?. 195 must not be confused with the strong, dark, lateral bristles which are frequently present) are two in number on each side of all sternites and in the other subfamilies of Pentatomidce are arranged transversely, or nearly so, behind the spiracles (Fig. 259). The ThyreocorincE may be separated from the Cydnincc by the very short exposure of the clavus (Figs, i, 165, 185, 196, and 229), which is briefly triangular and does not extend much beyond the base of the scutellum; in the Cydnince, on the other hand, it is elongate and reaches to, or almost to, the apex of the scutellum, with a corresponding pro- longation of the groove in the side of the scutellum in which it rests (Fig. 9)- A noteworthy feature of the hind wing in this group is the small oval aperture in the anal lobe behind the second anal vein (Fig. 10). This aperture, when the wing is folded, overlies the swollen base of Cu2 and is apparently a development coincident with the enlargement of that portion of the vein. No such aperture is found in Cydnincc nor CanopincE, and we have been unable to detect it in Thyreocoris, though in the latter the membrane is remarkably fragile and the base of Cu2 is moderately incrassated. There is no question about this aperture in the New World forms being normal, instead of due to abrasion between the vein and dorsum of the abdomen, many of the species showing a slight thickening of the margin, and in no case seen by us was there any irregularity of the edges such as would be ex- pected were the opening caused by friction. In the ThyreocorincE there is always an area of smooth chitin be- hind the eyes on the ventral surface of the head (Fig. ii), while in the Cydnina, the facetted surface extends to the hind margin of the head (Fig. 12). Scope of the Subfamily. Lethierry and Severin^ include in the Corimelccnida^ the genera Stromhosoma, Eucoria, Corimelcena, Eumetopia, Alkindus, Cyrtaspis, ChlcEnocoris, Canopus, Cursula, and Cceyiina. Horvath^ treats the group as a subfamily ThyreocorincE and separates Cyrtaspis and Canopus (the last four names above cited are synonyms of Canopus) as a tribe Canoparia. He puts the remaining genera in a tribe Thy- ’Cat. Gen. Hemip., I, 1893, PP- ^Ann. Mus. Nat. Hungary, 17, 1919, pp. 205-232. 196 Annals of the Carnegie Museum. reocoraria, in which he includes Thyreocoris, Eucoria, GalgupJia and seven new genera. McAtee and Malloch^ regard Megaris {Cyrtaspis) and Canopus as each constituting a subfamily coordinate with the Thyreocorince. In the latter group are here included all of the genera previously assigned to the complex, except as follows. The Old World genera Strombosoma Amyot and Serville"^ (Africa) and Carrahas Distant^ (India), which resemble Thyreocorince have the trichobothria transversely placed (Fig. 259); they differ also as fol- lows: corium not surpassing third sternite; metapleurum with ostiolar canal, but scarcely any ostiolar area; the remaining surface wholly coarsely punctate. In the Thyreocorince, as restricted for the pur- poses of this paper, the corium extends to the fourth sternite, or farther; the metapleurum has a well developed ostiolar area; and the remainder of its surface is never wholly coarsely punctate. Lack of material of the genera Strombosoma and Carrabas, and of certain other forms, which should be considered in defining relation- ships among Pentatomoidea of similar habitus, prevent us from being more definite as to subfamily relationships and more specific as to the content of the group. In Appendix No. i there is pre- sented further information on Strombosoma and Carrabas, of which genera several figures also are offered, chiefly through the greatly appreciated cooperation of W. E. China of the British Museum. The genus Eumetopia Westwood,® placed in this group by Lethierry and Severin (Cat. Gen. Hemip., 1, 1893, p. 13), has not been seen by us, but the venation indicates it is not thyreocorine. The size of the type species, E. fissiceps, is greater than any of the thyreocorine species here included, with one exception, and the head structure differs from anything we have seen, although it would be unique in almost any group. With the single exception of Thyreocoris scarabeoides Linnaeus, the species, which we know and accept as belonging to the subfamily, are entirely confined to the New World, and except for a few specimens of the European species, which have been taken by quarantine in- spectors, the genus Thyreocoris has not been found in America. ^Proc. U. S. Nat. Mus., 72, Art. 25, 1928. ■‘Hist. Nat. Ins., Hemip., 1843, pp. 64-65. ^Fauna British India, Rhynchota 4, 1908, pp. 421-422. “Trans. Ent. Soc. Lend., II, i, 1837, pp. 18-19. McAtee & Malloch: Revision of the Thyreocorin^. 197 Characters for Recognition of Species and Genera. Although we have made no special effort to distinguish the species by means of their internal genital parts, it would appear from those which we have dissected that these organs yield in at least some cases good diagnostic characters. In the genus Thyreocoris there are both external and internal characters in the female which readily dis- tinguish the genus from all others, the internal portions including two pairs of long slender hooks (Fig. 13) which have no counterparts in the other genera, which we have examined. The bases of the posterior pair of these hooks are visible in unrelaxed examples and divide the subgenital plates, a character which readily distinguishes the genus from all others, these latter having the subgenital plates contiguous or almost so (Figs. 14-16). All the figures above referred to are of partly expanded genitalia to show the internal portions to some extent. The males present characters in the ventrally exposed portion of the hypopygium, which are frequently sufficient to identify them. The shape of the hind margin is the most important of these, and it will be realized that this may vary with the point of view. To illustrate, hold a sheet of paper in arched form, corresponding to that of a ster- nite, and look down on the edge. When the axis of the paper at right angles to the arched edge is horizontal, the edge appears straight; by tilting the axis the edge may be made to appear either concave or convex. For this reason descriptions of the venter have been made with the axis of the insect (not necessarily the lower surface of the hypopygium) horizontal. On the other hand the dorsal rim has been described from a point of view perpendicular to its general plane. In some cases the descriptions and figures have been made from slightly different points of view and do not exactly agree. The conformation of the dorsal rim of the hypopygium is of con- siderable importance for the recognition of species, and is described in every case. There is always a more or less conspicuous depression in this dorsal surface, or basin, in which lie the tips of the genital organs, usually covered by the central disk, but sometimes projecting to a greater or lesser degree. In order to expose the dorsal rim, it is some- times necessary to break off the tip of the scutellum, but more often pressure with a fine needle on the upper surface of the abdomen is sufficient to depress it far enough to enable one to view the hypopygial 198 Annals of the Carnegie Museum. basin. VVe have dissected the internal genitalia of a number of the species and the accompanying figures give a fair idea of the specific distinctions. In the male sex also Thyreocoris seems to stand out from the others (Figs. 17-18), especially in the nature of the basal parts and the lateral subbasal process on each side, and, though Allocoris gilletti and A. interrupta (Figs. 24-26) appear to be rather well dis- tinguished from A. virilis, A. cognata, and A. extensa (Figs. 27-32), we have not allowed this to influence us in their generic segregation. These figures and the others representing the same organs are referred to by number in the text under the species to which they belong, and are placed together (Pis. V-VI) merely for purposes of comparison. The writers did not see Baker’s paper^ on Pentatomid genitalia until the present was written. He evidently assigned numbers to the ab- dominal segments after assuming that certain ones were involved in the formation of the genitalia. We count the segments from base of abdomen according to the evidence of the spiracles. Our sixth is his seventh segment. WTat he terms the “genital cup,’’ we call the hypopygium; other equivalents are our dorsal rim for his “dorsal border,’’ and our central disk for his “proctiger’’ or “tenth segment.’’ We have to a much greater extent than has hitherto been the case utilized the venation, or apparent venation, of the hemelytra in generic, subgeneric, and specific differentiations, but in some cases we have attached less importance to the extent of the apical width of the corium than did Dr. G. Horvath in his treatment of the genera in 1919. (See Bibliography). The genus Galgupha Amyot and Serville, and especially its sub- genus Gyrocnemis AIcAtee and Malloch, Amyssonotiim Horvath, and Alkindus Distant, have the most complete venation, while Pruhleria gen. nov. and Allocoris nom. nov. have the greatest reduction. Allocoris ( Corimelcena of authors) has the costal furrow and exocorial vein obliterated, but peculiarly has the mesocorial vein much better de- veloped than is the case in any other genus (Figs. 68-73). Pruhleria on the other hand has the costal furrow present and the exocorial vein faintly indicated, while the mesocorial vein is entirely lacking (Fig. 65). In all cases the cubital vein is present, this being the most constant character of the hemelytra. We figure the hemelytra of ^Baker, Alex. D., A study of the male genitalia of Canadian species of Penta- tomidae, Can. Journ. Research, 4, No. 2, Feb. 1931, pp. 148-179, figs. 1-21, and No. 3, March 1931, pp. 182-220, figs. 22-155, Pis. I-II (figs. 156-162). McAtee & Malloch; Revision of the Thyreocorin/E. 199 Carrahas Distant (Fig. 75) and Stromhosoma Amyot and Serville (Fig. 74) for purposes of comparison. Cydnoides Malloch is the only genus in which there are bristles, or other armature, on the wings (Fig. 61) and even in these species the costal bristles often may be rubbed off; the large insertions, however, can still be seen. We present the various figures of the hemelytra together on the plates as much as possible for comparative purposes and an examina- tion of Figures 39 to 75 and 186 will show more clearly than any discussion the various features, which are cited as distinguishing characters in this paper. The diagram showing the various veins and areas (Fig. 39) is self-explanatory. We figure the hind wing of Gal- gupha {Gyrocnemis) nitens Breddin, to illustrate the venation of the under wings which is similar throughout the subfamily (Fig. 10). The legs possess several characters, which have been used to segre- gate groups and individual species in our keys. The principal of these is the Carina or raised line on the posterior, or inner, surface of the hind tibia, present in many species of Galgupha sens. lat. (Fig. 173). The ventral armature of the fore femora in the same genus, while of con- siderable value in distinguishing certain species in North America, is of little value for that purpose in a general consideration of the genus, though the comparative strength of these bristles is of value in dis- tinguishing certain subgenera. Some other features of the tibia, notably, the armature of the fore pair in one segregate of Galgupha and in its subgenus Ctenopoda, and the conformation of the hind tibiae, whether silicate or nonsulcate dorsally, and the posterodorsal armature of the hind pair, we have found of value in our work. Apart from the above mentioned features, the legs are rather uniform throughout the subfamily, and in no case have we depended upon their armature alone for the separation of genera. One feature of this subfamily, and we found the same in the Cano- pincE, is the frequency of abnormal antennae. Often one or both of the antennae in an otherwise normal insect will have only four segments through the fusion of two, or rather the suppression of one of the joints. It is also noteworthy that in few cases can the comparative lengths of the segments be depended upon for specific identifications, and only in the subgenera Charoda McAtee and Malloch and Acro- metus Horvath of Galgupha Amyot and Serville is there a sufficient degree of constancy in the matter of a departure from the normal comparative lengths to be utilized in classification. 200 Annals of the Carnegie Museum. Acknowledgments. The material in the United States National Museum (where one of the authors, W. L. McAtee, was Acting Custodian of Hemiptera) and in the Carnegie Museum of Pittsburgh (received through the kindness of Dr. W. J. Holland) furnished the basis for the preliminary work on the subfamily, but it has been supplemented by generous loans from numerous other sources. We have received for study considerable collections of Thyreocorince from the folllowing additional institutions and individuals, to whom we are glad to record our in- debtedness and appreciation: Aluseo Nacional de Historia Natural, Buenos Aires, Argentina (Dr. Angel Gaillardo) ; Naturhistorische Museum,* Vienna, Austria (Dr. F. Maidl) ; Institute Oswaldo Cruz, Rio de Janeiro, Brazil (Dr. A. Costa Lima); Universitets Zoologiske Museum,* Copenhagen, Denmark (Dr. Wm. Lundbeck) ; British Mu- seum (Natural History),* London, England (W. E. China); Zoo- logisches Museum, University of Helsingfors,* Helsingfors, Finnland (Dr. Hakan Lindberg) ; Museum National d’Histoire Naturelle,* Paris, France (Dr. E. L. Bouvier) ; Universitats Museum fiir Na- turkunde,* Berlin, Germany (Dr. W. Ramme) ; Deutsches Entomo- logisches Institut,* Berlin-Dahlem, Germany (Dr. Walther Horn); Staatliches Museum fiir Tierkunde und Volkerkunde, Dresden, Ger- many (Dr. Eritz von Emden) ; Zoologische Staatsinstitut und Mu- seum, Hamburg, Germany (Dr. Eduard Wagner); Zoologische Staats- sammlung, Munich, Germany (Dr. H. W. Taeuber); Naturhis- torisches Aluseum,* Stettin, Germany (Edmund Schmitt); Rijks Mu- seum van Natuurlijke Historie,* Leiden, Holland (Dr. H. C. Blote) ; Maygar Nemzeti Museum,* Budapest, Hungary (Dr. G. Horvath); Officinia Federal para la Defense Agricola, Mexico (Dr. Alfonso Dampf) ; Polskie Panstwowe Museum,* Warsaw, Poland (Dr. T. Jaczewski); Naturhigtoriska Riksmusseot,* Stockholm, Sweden (Dr. B. Y. Sjostedt); Dr. Carl J. Drake, State College, Ames, Iowa; Dr. H. H. Knight, State College, Ames, Iowa; Museum of Comparative Zoology, Cambridge, Mass. (Nathan Banks); H. G. Barber, Wash- ington, D. C.; American Museum of Natural History, New York, N. Y. (H. G. Barber) ; Academy of Natural Sciences, Philadelphia, Pa. (E. T. Cresson, Jr.); and the U. S. Biological Survey, Washington, D. C. (W. L. McAtee). *Types and other material studied by McAtee in 1927. McAtee & Malloch: Revision of the Thyreocorin^. 201 Through the cooperation of the United States Bureau of Entomology (Taxonomic Division), one of the writers (McAtee) was enabled dur- ing the spring of 1927 to visit for the purpose of studying type and other material the institutions starred in the preceding list and also the following from which no material was borrowed : Museum Christian Albrechts Universitat, Kiel, Germany (Dr. A. Schroder), Museum Zoological Gardens, Amsterdam, Holland (Dr. A. Corporaal) ; and Zoologisches Museum, Johann Kasimir Universitat, Lwow, Poland (Dr. Jan Hirschler). The information gained on this trip was indis- pensable for the revision of a group so uniform in general appearance and with so few color characters as the ThyreocorincE. We have been further favored with the loan of type or other de- sirable material in small lots by the following individuals, to whom we are greatly obliged: Dr. T. H. Prison, State Natural History Sur- vey, Urbana, 111.; Dr. R. F. Hussey, New York University, New York, N. Y.; A. C. Jensen-Haarup, Silkeborg, Denmark; E. P. Van Duzee, Academy of Natural Sciences, San Francisco, Calif.; and R. H. Van Zwaluwenberg, Sugar Planters’ Experiment Station, Honolulu, Hawaii. We are glad to express our special appreciation also of Mr. W. E. China’s cooperation in furnishing notes and sketches of species in the British Museum. The location of type and other material studied is indicated by abbreviated designations of the collections, which can be correlated with the fuller references to museums and individuals in the preceding list. SYSTEMATIC TREATMENT. In the following synoptic keys to genera and species we have made no attempt to arrange them in what we consider are their systematic relationships, the keys being drawn up on a strictly dichotomous scheme. Both in the case of genera and species we present, following the dichotomous keys, our opinion of the systematic arrangement. Key to the Genera. I. Ostiolar (opaque) surface extending clear to the lateral margin of the meta- pleurum; all tibiae sulcate dorsally; prosternal sulcus parallel-sided; pro- pleurum coarsely punctate throughout; tylus enclosed by jugae; prothorax gibbous anteriorly; subgenital plates quite widely separated in front by the bases of the internal claspers (Figs. 13, 218) Thyreocoris Schranck. 202 Annals of the Carnegie Museum. Ostiolar (opaque) surface scarcely attaining lateral margin of metapleurum, separated from it by a glossy portion, which varies from truncate to acuminate anteriorly; tibiae in most cases terete; prosternal sulcus usually flaring anteriorly; propleurum with a considerable portion of its extent impunctate; tylus usually attaining anterior margin of head; prothorax not gibbous anteriorly; subgenital plates contiguous or almost so in front (Figs. 14-16, et al.) 2 2. Spiracles nearer to setigerous punctures (trichobothria) (Figs. 7, 105, 106, 112) than to lateral margin of sternites; mesocorium without, or with, one or more veins (impressed or impressed-punctate lines) 3 Spiracles nearer to lateral margin than to setigerous punctures on sternites 3-6 (Fig. 223); mesocorium with a vein paralleling scutellum and connivent or nearly so posteriorly, with cubitus (Figs. 67-73) ; exocorial vein obsolete or almost so 8 3. Sternites with one or more strong bristles on each side laterad of the setigerous punctures (Figs. 7, 105, 106, 112) 4 Sternites mostly lacking such bristles (Fig. 223) 7 4. Hind tibiae flattened or sulcate dorsally 6 Hind tibiae not flattened or sulcate dorsally 5 5. Sides of pronotum and costal margin of corium (Fig. 61) with long slender bristles; sternites each with more than 2 bristles laterad of the piliferous punctures (Fig. 202) Cydnoides Malloch. Sides of pronotum and costa without bristles; sternites each with only one or two bristles laterad of the piliferous punctures (Figs. 7, 105, 106, 112) Galgupha Amyot and Serville. 6. Hind tibia flattened, but scarcely sulcate, dorsally lacking carinate line on posterior surface; ocelli about equidistant from eyes and middle of vertex; (Fig. 204) ; inner margins of female genital plates forming an acute elevation anteriorly (Figs. 207-208); pronotum not rastrate Alkindus Distant. Hind tibia sulcate dorsally and provided with a carinate line on posterior sur- face; ocelli nearer to eyes than to middle of vertex (Fig. 209); female genital plates (Fig. 214) without elevation; pronotum decidedly rastrate posteriorly. Amyssonotum Horvath. 7. Corium tumid, inconspicuously punctate, cubital vein deeply impressed, exocorial vein present only as traces (Fig. 65) ; ocelli about twice as far from middle of vertex as from eyes; inner margins of female genital plates not elevated; ventral exposure of ultimate tergite brief, not one-seventh as long as the large sixth sternite Pruhleria new genus. Corium not tumid, conspicuously punctate, cubital vein less deeply impressed, exocorium with the usual branched vein evident, very deep basally (Fig. 64) ; ocelli not much farther from middle of vertex than from eyes; inner margins of female genital plates elevated, knife-like, most prominently so anteriorly (Figs. 216-217); ventral exposure of ultimate tergite ample, almost or quite as long as the almost parallel-margined sixth sternite (Fig. 216). Pericrepis Horvath. McAtee & Malloch: Revision of the Thyreocorin^. 203 I 8. Costa carinate; each sternite with one or two bristles on each side laterad of piliferous punctures Godmania Horvath. Costa rounded, without carina; sternites without lateral bristles, except rarely on second (Fig. 223) Allocoris nom. nov. Systematic Arrangement of the Genera. Spiracles nearer to the trichobothria than to the lateral margins of the sternites. Metapleurum with lateral glossy area. Sternites with bristles laterad of the trichobothria. Hind tibia terete. Sides of pronotum and costa without bristles Galgupha. Sides of pronotum and costa bristly Cydnoides. Hind tibia flattened or sulcate dorsally. Hind tibia without carinate line posteriorly; pronotum not rastrate. Alkindus. Hind tibia with carinate line posteriorly; pronotum rastrate behind middle Amyssonotum. Sternites mostly lacking such bristles. Exocorium with the usual branched vein evident Pericrepis. Exocorium with only traces of veins Pruhleria. Metapleurum without lateral glossy area Thyreocoris. Spiracles nearer to the lateral margins of sternites than to the trichobothria. Costa carinate; sternites with lateral bristles Godmania. Costa rounded; sternites usually without lateral bristles Allocoris. Genus Galgupha Amyot and Serville. Galgupha Amyot, C. J. B. and Serville, A., Histoire Naturelle des Insectes Hemipteres, 1843, p. 68 (Containing two species G. atra, Mexico, and G. notata, Cayenne, of which the former was selected as genotype by Horvath in 1919). Principal characters: Spiracles nearer to trichobothria than to lateral margins of sternites (Figs. 7, 105, 106, and 112); sternites two to six each with one or two strong bristles laterad of the trichobothria (same Figs.); sides of pronotum and costa without bristles; meta- pleurum with lateral area in part impunctate; prothorax not gibbous anteriorly. As accepted in this paper, this is by far the largest genus of the sub- family, containing fifteen subgenera, several of which were originally erected as distinct genera, and one hundred and forty-eight species. Of these subgenera six are monobasic while the great bulk of the species are contained in three, namely: Nothocoris (26); Euryscytus (38); and Gyrocnemis (36). Key to the Subgenera. I. Exocorial vein faint, or lacking, basally, at most represented by a series of weak punctures, not by an impressed line, and never as deeply impressed as the basal portion of cubital vein (Figs. 57, 58, 60, and 186) 2 204 Annals of the Carnegie Museum. Exocorial vein always very well defined at base as an impressed line and never less deeply impressed than the basal portion of the cubital vein (Figs. 41-56, 59. 61-75) 5 2. Hind tibia with a well defined carinate line on the entire length of its posterior surface (Fig. 173) 3 Hind tibia without a well defined carinate line on entire length of its posterior surface Astiroderma Horvath. 3. Second antennal segment almost as long as third Charoda subgen. nov. Second antennal segment not over one-third as long as third 4 4. Exocorium with a flat-bottomed groove between costa and cubitus basally (Fig. 186) Pteronomos subgen. nov. Exocorium with the area between costa and cubitus basally convex (as usual in the genus) Psestophleps McAtee & Malloch. 5. Hind tibia without a carinate line on entire length of posterior surface 6 Hind tibia with a carinate line on entire length of posterior surface (Fig. 173) . . 8 6. Fore tibia with a series of strong spines on posteroventral surface, a number of which distally form a comb-like structure (Fig. 137) ; corium truncate apically (Fig. 48) Ctenopoda subgen. nov. Fore tibia not so armed 7 7. Exocorial vein distinctly furcate at some distance from the base as in most ol the subgenera, its base always quite distinct from base of the cubital vein, mesocorial vein distinct, distant from cubital vein apically (Figs. 39, 43-47). Gyrocnemis McAtee & Malloch. Exocorial vein not distinctly furcate, only one branch distinct and that lying very close to base of cubital vein owing to the elevation of the area between exocorial vein and costa, mesocorial vein faint, connivent with cubitus posteriorly (Fig. 59) Acritophleps McAtee & Malloch. 8. Beak much elongated, always extending beyond base of third abdominal sternite and frequently to apex of abdomen, the second segment noticeably curved and extending to or beyond posterior margin of prosternum, third segment about as long as, or even longer than, hind femur; mid tibia without a posterior carinate line; form elliptic, head quite pointed in front; anterior lateral bristle on abdominal sternites almost invariably lacking. Bonaria subgen. nov. Beak normal in length, rarely extending beyond posterior margin of metaster- num, second segment usually straight and not extending to posterior margin of prosternum, third shorter than hind femur; mid tibia usually with a dis- tinct posterior carinate line; if the beak is about as long as in Bonaria, the form is more ovate, the head less pointed, and the anterior lateral bristle is normally present on sternites three to five 9 9. Anterior outline of head bluntly angulate each side of tylus, head tumid beneath these angulations, concave between the prominences and eyes; fore tibia with an anterodorsal series of closely placed black spinules (in addition to the usual pale bristles) on almost its entire length (Fig. 146); ocelli situated well behind posterior transocular line Orocoris subgen. nov. Anterior outline of head not angulate each side of tylus nor tumid beneath; fore tibia without spinules in addition to the usual pale bristles 10 McAtee & Malloch: Revision of the Thyreocorin^.. 205 10. Corium broadly rounded or truncate at apex, branches of exocorial vein scarcely connate posteriorly; mesocorium with one or more veins (Figs. 41. 51) II Corium narrowly rounded or pointed at apex, branches of exocorial vein nearly or quite united at apices; mesocorium without veins (Figs. 50, 52-56) .... 12 11. Second antennal segment fully half as long as third; anterodorsal series of spines about as long as those of posterodorsal series on fore tibia; fore femur with two quite strong bristles on apical half of anteroventral surface. Acrotmetus Horvath. Second antennal segment not more than one-third as long as third ; anterodorsal armature of fore tibia weak, the setulae shorter than those of the postero- dorsal series, the whole armature of fore tibia much less developed than in the contrasted group; fore femur with two hair-like bristles on apical half of anteroventral surface Euryscytus Horvath. 12. Hind tibia with a deep longitudinal sulcus just exterior to the carinate line, somewhat sulcate dorsally; scutellum extending to apex of abdomen. Trepocnemis subgen. nov. Hind tibia otherwise 13 13. Lateral area of metapleurum smooth, impunctate. Galgupha Amyot and Serville. Lateral area of metapleurum distinctly punctured adjacent to the ostiolar surface 14 14. Scutellum sharply bicolored, black and yellow or reddish (Figs. 162, 166) ; corium rounded at apex (Fig. 55) Microcompsus Horvath. Scutellum generally entirely black; only one species with coccinelloid colora- tion (Fig. 177); corium acute at apex (Fig. 56). Nothocoris McAtee and Malloch. Systematic Arrangement of the Subgenera. Corium broad apically. Hind tibia carinate: I, Euryscytus; 2. Bonaria. Hind tibia not carinate; 3. Gyrocnemis; 4. Ctenopoda. Corium pointed apically. Hind tibia sulcate dorsally: 5. Trepocnemis. Hind tibia not sulcate dorsally. Hind tibia carinate: Exocorial vein distinct basally: 6. Orocoris; 7. Acrotmetus; 8. Microcompsus; 9. Nothocoris; 10. Galgupha. 206 Annals of the Carnegie Museum. Exocorial vein obsolete basally: II. Psestophleps ; 12. Pteronomos; 13. Charoda. Hind tibia not carinate: 14. Acritophleps ; 15. Astiroderma. Subgenus Euryscytus Horvath. Euryscytus Horvath, G., Ann. Mus. Nat. Hungary, Vol. XVII, 1919, p. 227 [Sub- genotype (orthotype), Tetyra smidtii Fabriciusj. Principal Characters: Corium rounded or truncate at apex (Fig. 41), exocorial vein distinctly furcate, the branches scarcely connate posteriorly, mesocorial vein almost complete in species with entirely dark corium, evanescent basad of apex of claval suture in those with pale corial mark at base, practically obsolete in lucretia\ second an- tennal segment not, or very little, more than one-third as long as third; anterodorsal bristles on fore tibia weak, shorter than those of postero-dorsal series; hind tibia with a carinate line on posterior sur- face; trichobothria and spiracles in a slightly curved series on each sternite. It may be noted that the group with apically narrowed corium con- tained within Captions 2 to 14 of the following key to the species is quite similar to the subgenus Acrotmetus, but is distinguished from the latter by the much weaker armature of the anterodorsal surface of the fore tibia and of the anteroventral surface of the fore femur, the latter having two fine, instead of two quite strong, bristles on the apical half; and by the shorter second antennal segment. The re- flexed apical margin of the sixth abdominal sternite occurs in the males of both groups (except in that of lucretia). The propriety of referring this group to either subgenus, or to a new one, may be considered a matter of opinion, but we prefer to retain it in Euryscytus. Key to the Species of the Subgenus Euryscytus. I. Corium more or less narrowed and somewhat rounded apically, mesocorium at narrowest point narrower than corresponding costad portion of corium, as in Acrotmetus (Fig. 51)®, mesocorial vein never present as a sharply incised *It must be remembered that in estimating the comparative width of the mesocorium and exocorium the hemelytra should be in the normal resting position, which is with its costal margin almost directly in line with the lateral margin of the abdomen. In many specimens the fore wing is slightly extended and thus the inner portion of the corium, usually covered by the lateral edge of the scutellum, is exposed, giving the mesocorium a greater width than when the hemelytra is in its normal position. This fact should be borne in mind when using the diagnostic keys. McAtee & Malloch. Revision of the Thyreocorin^. 207 line; abdominal sternites either without distinct pale lateral markings, or if such are present they are narrow, reddish, and continuous (or nearly so) along margins of segments on which they occur; apex of sixth abdominal sternite of male, except in lucretia, narrowly reflexed ; scutellum always over- lapping base of hypopygium in male, and extending to apex of penultimate tergite in most females 2 Corium wider, truncate at apex, mesocorium at narrowest point equal to, or broader than, costad portion of corium; abdominal sternites with yellow, semicircular, usually disconnected, lateral spots, usually on from third to sixth in male and from third to seventh in female; sixth abdominal sternite of male not reflexed at apex; scutellum normally falling short of base of hypopygium in male, never distinctly overlapping it, and not extending much beyond base of penultimate tergite of female 17 2. Females 3 Males 10 3. Corial marking yellow on costa, becoming dark reddish toward claval suture; sixth abdominal sternite narrowly rounded anteriorly; sternites deeply and coarsely punctate; genital and subgenital plates about equally long (Fig. 81). varipennis sp. nov. Corial marking uniformly reddish orange or yellowish 4 4. Sixth abdominal sternite very broadly rounded anteriorly; genital plates longer than fifth sternite at middle, and nearly half as long as sixth, their inner edges slightly elevated; pale basal mark on corium not extending to the middle insula sp. nov. Sixth abdominal sternite narrowly rounded or subangulate anteriorly; genital plates not longer than fifth sternite, and distinctly less than half as long as sixth, their inner edges not elevated 5 5. Pale basal marking half the length of corium, bordering the scutellum beyond the claval suture; mesocorial vein obsolete . . .lucretia sp. nov. Pale marking distinctly less than half as long as corium, not, or scarcely border- ing scutellum beyond the claval suture 6 6. Genital plates almost flat, their posterior margins nearly straight (Fig. 78) . . . 7 Genital plates more or less elevated along inner margins, their posterior mar- gins noticeably concave 9 7. Vertex feebly and sparsely punctate; genital plates with sparse small shallow punctures assimilis sp, nov. Vertex with rather large and deep punctures which are quite close together discally on each side 8 8. Subgenital plates not over half as long as genital plates on inner margins, genital plates quite coarsely punctured except near inner margins; length of ventral exposure of ultimate tergite about half as great at middle as on lateral margin caudata sp. nov. Subgenital plates over half as long as genital plates on inner margins, genital plates with a few small punctures and shallow longitudinal striae; length of ventral exposure of ultimate tergite about one-fourth as great at middle as on lateral margin candiculata sp. nov. 208 Annals of the Carnegie Museum. 9. Both fifth and sixth abdominal sternites subangulate in centre of anterior margin difficilis Breddin. Only the sixth sternite noticeably angulate in center of anterior margin (Fig. 80) signatipennis Germar. 10. Hind margin of hypopygium trisinuate, the central emargination angular or subangular Hind margin of hypopygium more or less distinctly and evenly emarginate centrally, not subangularly so, lateral emarginations faint or lacking 12 11. Sternites with minute punctures, almost impunctate; hypopygium as seen from below as in Figure 83, the rim not at all thickened on each side of the central emargination obesa sp. nov. Sternites with deep moderate-sized punctures; hypopygium as in Figure 86, the rim thickened on the inside on each side of the central emargination. difficilis Breddin. 12. Basal mark on corium extending beyond middle; sixth sternite not reflexed at extreme apex lucretia sp. nov. Basal mark on corium not extending to middle, occupying about the basal third; sixth slightly reflexed at extreme apex 13 13. Hypopygium with a feeble emargination on each side of the central one 14 Hypopygium with only the central emargination 15 14. All the emarginations slight (Fig. 88) contracta sp. nov. Central emargination much more distinct than the lateral (Fig. 89). assimilis sp. nov. 15. Ventral exposure of hypopygium distinctly longer than fifth sternite. regularis sp. nov. Ventral exposure of hypopygium not longer than fifth sternite 16 16. Larger species, averaging at least 5 mm insula sp. nov. Smaller species, averaging about 4 mm signatipennis Germar. 17. Corium entirely dark (teneral and sometimes other specimens may show more or less indications of basal pale marking) ; lateral area of metapleurum angulate-narrowed anteriorly, with few, or no, punctures; posterior border of male hypopygium not reflexed, straight or almost so 18 Corium with at least one conspicuous pale basal mark which is either reddish or yellowish on a dark ground 24 18. Females 19 Males 21 19. Genital plates twice as long as postventer, inner margins distinctly elevated, the disks depressed sahlbergi sp. nov. Genital plates but little longer than postventer, their modelling otherwise. . . 20 20. Genital plates quite conspicuously depressed on posterior margins, causing them to appear elevated or tumid centrally in profile corvina Horvath. Genital plates practically flat in profile laevis Stal. 21. Hind wall of dorsal rim of hypopygium seen from above thin only central- ly 22 Hind wall of dorsal rim of hypopygium seen from above thin across most of its width 23 McAtee & Malloch: Revision of the THVREOCORiNiE. 209 22. Dorsal rim" of hypopygium flat anteriorly, lateral angles excavated, central depression trapezoidal (Fig. 96) corvina Horvath. Dorsal rim of hypopygium depressed anteriorly, tumid and very wide later- ally; central depression nearly circular (Fig. 95) punctata sp. nov. 23. Entire vertex coarsely and deeply punctured; dorsal rim of hypopygium abruptly declivitous, especially laterally (Fig. 94) opercula sp. nov. Vertex irregularly punctate, nowhere very deeply so, and on some portions almost impunctate; dorsal rim of hypopygium gradually and rather evenly downwardly sloped towards center (Fig. 93) laevis Stal. 24. Corium sometimes with only a pale line along costa basally, remainder brown- ish black laevis Stal. Corium at base with a broad yellowish or reddish mark which extends over almost all, or all, of the area between costa and claval suture 25 25. Scutellum with a slight, but distinct, raised marginal line round the entire apex vulnerata Horvath. Scutellum without trace of a raised marginal line round apex 26 26. Beak extending to apex of third abdominal sternite; male hypopygium with dorsal surface as in Figure 97 rostrata sp. nov. Beak seldom extending beyond insertions of hind coxae and never to beyond hind margin of second abdominal sternite 27 27. Basal pale mark on corium short, never as long on mesocorium as the dark part of that area beyond it, and rarely extending beyond level of apex of the claval suture 28 Basal pale mark on corium longer, generally as long on mesocorium as the dark part of that area beyond it, and always extending noticeably beyond level of the claval suture 47 28. Vertex with large, contiguous, deep punctures on surface except for a small area between each ocellus and eye, and a small subtriangular area on each side of tylus on posterior margin; basal pale mark on corium seldom extend- ing beyond middle of the claval suture; pronotum deeply punctured, except on center of disk; spaces between mesocorial line and exocorium and the exocorium and costa subequal foveolata Jensen-Haarup. Vertex much less deeply and copiously punctured, sometimes almost im- punctate, and in all cases with a much greater proportion of the dorsal surface impunctate 29 29. Sixth abdominal sternite in both sexes about as long on central line as the preceding four sternites combined at same point, very broadly and evenly rounded in front; fifth sternite very short in center, not over one-third as long there as at lateral margin; vertex microscopically punctured, appear- ing impunctate, except under a very high power lens, lateral carinae weak, but evident; lateral glossy metapleural area not linear in front, with some shallow punctures along inner margin anteriorly rasilis Horvath. Sixth abdominal sternite in neither sex nearly as long as the preceding four sternites combined, rarely as long as the three preceding sternites; fifth sternite rarely less than half as long at center as at lateral margin 30 210 Annals of the Carnegie Museum. 30. Yellow basal mark on corium not extending beyond middle Of claval suture, and more or less tinged with brown; vertex with rather large deep punctures on central portion of each side, minutely and shallowly punctured behind and along each side in front, the lateral carina almost undeveloped. valvata sp. nov. Yellow basal mark on corium usually extending as far as apex of exposed por- tion of claval suture, if extending to slightly beyond middle, the vertex differently punctured 31 31. Yellow basal mark on corium falling distinctly short of apex of exposed por- tion of claval suture, its extreme apex centrally about on level with apex of suture; vertex practically impunctate and without distinctly carinate an- terior margin; lateral area of metapleurum reduced to a mere line in front, sometimes rather abruptly narrowed at some distance from anterior ex- tremity nitida sp. nov. Yellow basal mark on corium almost invariably extending to apex of exposed portion of claval suture, and exceeding level of its apex in center; if not clearly thus, the vertex is distinctly punctured and with anterior margin carinate, or the lateral area of metapleurum is not less than half the width of reflexed costal portion of corium at its anterior extremity 32 32. Males 33 Females 39 33. Vertex not highly polished, microscopically shagreened, and quite coarsely and deeply punctured, becoming gradually less so laterally and posteriorly, the lateral carina much more distinct than usual, length in front of anterior transocular line distinctly greater than behind it; eye slightly recessive as seen from above, the outline a little incurved (Fig. 76) ; central exposure of hypopygium from below distinctly greater than length of fifth abdominal sternite at center opacifrons sp. nov. Vertex distinctly shining, usually highly polished and without shagreening (the punctures neither so deep nor so numerous as stated in the alternative), and shorter in front of than behind anterior transocular line; eye not, or very inconspicuously recessive as seen from above, generally almost in line with lateral margins of vertex 34 34. Vertex highly polished and subobsoletely punctured, the punctures visible only with a high power lens (X 32) 35 Vertex quite distinctly punctured at least on central portions of each side. . . 36 35. Dorsal rim of hypopygium regularly and evenly sloping towards center all around except central part of anterior margin (Fig. 103). .parallela sp. nov. Dorsal rim of hypopygium not regularly and evenly sloping; with a small elevation on each side opposite lateral angle (Fig. 102). . . smidtii Fabricius. 36. Hind margin of hypopygium distinctly emarginate (Fig. 99), and consequently shorter at center than fifth sternite 37 Hind margin of hypopygium without pronounced emargination, longer at center than fifth sternite, straight, or transverse (Figs. loo-ioi) 38 McAtee & Malloch: Revision of the Thyreocorin^. 211 37. Hind margin of hypopygium very broadly emarginate (Fig. 99) ; scutellum falling distinctly short of anterior margin of hypopygium; vertex with quite large deep punctures, the most conspicuous of which are proximad of middle on each side almost up to anterior margin; lateral metapleural area rather broad in front, punctate on inner margin australis sp. nov. Hind margin of hypopygium less broadly emarginate; scutellum slightly over- lapping anterior margin of hypopygium; vertex with less conspicuous punc- tures, the deepest on each side behind median transverse line, and the anterior lateral portions almost impunctate; lateral area of metapleurum narrow and impunctate interiorly curvata sp. nov. 38. Larger species, not less than 5 mm. in length; hind margin of hypopygium slightly undulated (Fig. 100) basalis Germar. Smaller species, averaging 4 mm. in length; hind margin of hypopygium almost straight (Fig. loi) jaczewskii McAtee & Malloch. 39. Large species, not less than 5 mm. in length; all veins in apical part of hind wings heavily pigmented; apex of corium seen from behind not at all paler than remainder of it basalis Germar. Smaller species, less than 5 mm. in length; at most only the anterior one of the veins in apical part of hind wings heavily pigmented 40 40. Apex of corium when seen from behind and slightly above its level distinctly paler than remainder of the dark part, most noticeably so at outer apical angle 41 Apex of corium not noticeably pale 43 41. Vertex almost impuncate even under a high power lens (X 32) ; greatest length of pale basal mark on corium not much less than extent of the dark part apicad of it parallela sp. nov. Vertex more distinctly punctate; pale basal corial mark not nearly half as long as corium 42 42. Pale basal mark on corium not extending beyond level of apex of exposed por- tion of claval suture; vertex with shallow punctures romana sp. nov. Pale basal mark on corium extending on mesocorium to beyond level of apex of exposed portion of claval suture; vertex more deeply punctured. australis sp. nov. 43. Vertex deeply and coarsely punctured australis sp. nov. Vertex shallowly and rather finely punctured 44 44. Sixth sternite subangulate anteriorly 45 Sixth sternite evenly rounded anteriorly curvatula sp. nov. 45. Genital plates distinctly shorter than postventer labrata sp. nov. Genital plates equal in length to postventer 46 46. Sixth sternite with distinct sublateral undulations anteriorly in addition to the somewhat produced median angulation mammula sp. nov. Sixth sternite without sublateral undulations, the median angulation scarcely produced curvata sp. nov. 212 Annals of the Carnegie Museum. 47. Corium without yellow mark at apex of costa; vertex with rather large and moderately deep punctures centrally on each side; yellow corial mark ex- tending practically as far on costa as on mesocorium 48 Corium with a distinct yellow mark at apex of costa; vertex almost impunc- tate 49 48. Hind margin of male hypopygium convex medially, concave laterally. cruenta Horvath. Hind margin of male hypopygium concave medially, convex laterally. contra sp. nov. 49. Males 50 Females 51 50. Sixth sternite angulate anteriorly; dorsal rim of hypopygium scooped out almost evenly from side to side parse sp. nov. Sixth sternite rounded to subangulate anteriorly; dorsal rim of hypopygium somewhat tumid within lateral angles, flat anteriorly apicata sp. nov. aliena sp. nov. 51. Genital plates longer than postventer, their posterior margins more concave; hind margin of ventral exposure of ultimate tergite convex, apicata sp. nov. parse sp. nov. Genital plates scarcely equalling postventer, their posterior margins nearly straight; hind margin of ventral exposure of ultimate tergite slightly con- cave medially aliena sp. nov. Systematic Arrangement of the Species* OF THE Subgenus Euryscytus. Corium narrowed apically, mesocorium at narrowest part not as wide as costad portion of corium. Mesocorial vein distinct, punctate-striate: varipennis, obesa, difficilis, contracta, assimilis, caudata, caudiculicata, regularis, signatipennis, insula. Mesocorial vein obsolete: lucretia. Corium broader, hardly narrowed apically, mesocorium at narrow- est point as broad as, or broader than, costad portion of corium. Corium without pale markings or with only a pale line on base of costa: laevis, opercula, punctata, sahlbergi, corvina. Corium with at least a basal pale mark which extends from costa to claval suture. *The species in the following descriptive pages are not arranged systematically, but in alphabetical order. jNIcAtee & Malloch: Revision of the Thyreocorin^. 213 Basal pale mark on corium at longest point not nearly as long as the dark part of mesocorium beyond it, rarely extending much beyond apex of claval suture: vulnerata, foveolata, rostrata, opacifrons, australis, basalis, jaczewskii, mammula, curvata, labrata, romana, curva- tula, valvata, nitida, rasilis, smidtii, parallela. Basal pale mark extending to or almost to middle of corium: apicata, aliena, parae, cruenta, contra. I. Galgupha (Euryscytus) aliena sp. nov. Black, stramineous elytral marking covering about one-third length of exocorium and about one-half that of mesocorium, corium narrowly pale apically with a moderate-sized pale blotch on outer apical angle; tarsi, antennae, and beak testaceous, the latter more or less infuscated; lateral pale spots on segments in some cases rather obscure. Head narrowly rounded anteriorly, produced more than length of an eye beyond anterior transocular line, vertex with only slight traces of wrinkling and puncturing; pronotum highly polished, with only slight traces of puncturing, even laterally; scutellum with rather decided punctures in anterolateral angles, but only faint ones else- where; corium sparsely punctured except along veins, which are closely punctate as usual; sternites with scattered, coarse, but not deep punc- tures, six broadly rounded anteriorly in both sexes, the preceding sternites, however, but slightly constricted medially; ventral exposure of male hypopygium coarsely punctate, transversely channelled, hind border distinctly concave-emarginate medially, convex laterally, dorsal rim broad, nearly flat anteriorly, broader and more sloping laterally, with a tumid area, however, within each lateral angle; hind wall narrow, more abruptly declivitous interiorly; genital plates of female coarsely punctate, less than half as long as sixth sternite, nearly as long as postventer; inner margins narrowly elevated, hind margins slightly concave. Length 3. 75. -4 mm Holotype, and paratypical males and allotype, female, Rio Caiary- Uaupes, Amazonas, Brazil, Sept. 1906, H. Schmidt (A. M. N. H.). Mosqueiro, Rio de Para, March 12, 1896, E. E. Austen (British Museum). 2. Galgupha (Euryscytus) apicata sp. nov. Black, shining, the corial markings hyaline to stramineous, the an- terior one more than half as long as corium, decidedly longer on meso- than on exo-corium; beak, antennae, and tarsi stramineous to testa- ceous; lateral spots on third to sixth segments in both sexes, and also on ultimate tergite of female, pale yellowish. 214 Annals of the Carnegie Museum. Surface minutely sculptured, somewhat decreasing the glossiness and obscuring the puncturing. Head narrowly rounded anteriorly, produced about length of eye beyond anterior transocular line; dorsal punctures subobsolete on head and pronotum, a little more obvious toward sides of latter, anterior disk of scutellum nearly impunctate, distinct punctures elsewhere, strongest near antero-lateral angles; | corium almost impunctate, except along veins. Lateral area of meta- ! pleurum anteriorly rather broad, without punctures; sternites 2-5 j shorter at middle than at lateral margins, but none of them so much as ! half shorter; sixth sternite anteriorly broadly rounded; ventral ex- j posure of male hypopygium punctate, not channeled transversely, hind margin rounded, shallowly concave-emarginate posteriorly; ! dorsal rim rather flat anteriorly, more sloping laterally, central de- pression rather abrupt, hind wall high and thin, a little depressed 1 medianly. Genital plates of female punctate, about half as long as I sixth sternite, and equal to postventer, inner margin distinctly shorter than posterior, the latter slightly concave. Length 3. 2-3. 9 mm. j Holotype and paratype: males; and allotype, female, Guyane, j Leprieur, 2-39; paratype female, Maroni, St. Jean, Guyane Frangais, j F. Geay, 1903; Charvein, French Guiana, 1914, R. Benoist (Paris | Mus.); Demerara, British Guiana (British Mus.); Paramaribo, | Surinam, various months, Heller (Berlin Mus.); Paramaribo, Dutch I Guiana, C. Heller (Hamburg Mus.). j Some of the Paramaribo specimens from the Berlin Museum have | the country listed on label as Mexico, which is clearly in error. Dutch I Guiana should be substituted, as they were collected about the same j time as the others and by the same collector. I il i' 3. Galgupha (Euryscytus) assimilis sp. nov. | Black with seneous reflections, corial patch yellow, lateral margins i of sternites 4-6 in both sexes, and more or less of genital region in I females dull reddish; tarsi, beak, and antennse testaceous, segments of the last named infuscated in varying degrees. I Head produced a little more than length of eye beyond anterior |j transocular line, front margin slightly carinate, almost evenly rounded; i vertex with only sparse subobsolete punctures; pronotum shallowly ^ coarse-punctate laterally, almost impunctate elsewhere; scutellum | with sparse shallow punctures laterally, finer ones on posterior de- clivity, the anterior disk almost like disk of pronotum, polished im- punctate; lateral area of metapleurum broad, impunctate; sternites ' with sparse shallow coarse punctures, smoother medially; sixth i sternite of male subangulate anteriorly, the projection rounded, the fourth and fifth noticeably constricted medially; ventral exposure I of hypopygium faintly punctate, hind margin slightly reflexed, broadly McAtee & Malloch: Revision of the Thyreocorin^. 215 but shallowly emarginate medially, briefly and faintly so laterally (Fig. 89) ; dorsal rim distinctly broadest laterally, sloping from ex- terior border inwardly, most abruptly so anteriorly, hind wall nearly vertical (Fig. 89) ; sixth sternite of female rounded anteriorly, preced- ing sternites subparallel in outline, little constricted medially; genital plates (Fig. 78) two-thirds as long as sixth sternite, about equal to postventer, inner margins about two-thirds as long as posterior, the latter almost transverse. Length 4.5 mm. Holotype, male; paratype male; and allotype female, Rio Negro, Parana, Reichensperger (Helsingfors Museum). 4. Galgupha (Euryscytus) australis sp. nov. Black, shining usually with aeneous, sometimes with purplish re- flections; basal spot of corium stramineous to yellowish, about half length of corium on mesocorium, and one-third on exocorium; lateral spots on abdomen yellow; beak, antennae, and tarsi testaceous. Head narrowly rounded anteriorly, produced slightly more than length of eye beyond anterior transocular line; eyes slightly set in from margin of vertex; vertex coarsely punctate, except on tylus posteriorly and occipital region; pronotum noticeably punctate laterally, and in extremities of transverse impression, where the punctures are rastrate, finely punctate elsewhere; scutellum numerously punctate, most coarsely so anterolaterally, and most finely so discally; corium moder- ately punctate anteriorly puncturing obsolete posteriorly, except along veins. Lateral area of metapleurum broad anteriorly, with a row of punctures bordering ostiolar surface. Sternites coarsely punctate, smoother medially; sixth sternite of male subangulate anteriorly, about equal in length to preceding three sternites together, each of which is more or less constricted medially; ventral exposure of hypo- pygium rather short, punctate, scarcely channelled, hind margin slightly concave medially (this and dorsal rim as in Fig. 99) ; sixth sternite of female broadly rounded anteriorly, shorter than pre- ceding three sternites together, each of which is moderately con- stricted medially; genital plates punctate, less than half as long as sixth sternite, about equal in length to postventer, inner margin de- cidedly shorter than posterior, the latter slightly oblique and concave. Length 3.8-4 mm. Holotype male, Chapada, Brazil, October; paratypes males, same locality, April, October; and Corumba, Brazil, April (Carnegie Mu- seum); allotype female, Sapucay, Paraguay, W. T. Foster (U. S. N. M.); paratypes, Tucuman, Argentina, Vezenyi, 1906, and Nov. 1905 (Jensen-Haarup) ; Zuviria and San Antonio, Argentina, Reimoser (Vienna Museum); Yhancaroinza, Chuquaca, Bolivia, G. L. Harring- ton (U. S. N. M.). 216 Annals of the Carnegie Museum. 5. Galgupha (Euryscytus) basalis Germar. O .[dontos cells] basalis Germar, E. F., Zeitschr. f. Ent., I, 1839, p. 41 [Brazil]. Corimelcena proxima Walker, Francis, Catalogue, i, 1867, p. 80 [Brazil]. Black with aeneous to purplish reflections; corial patch (somewhat longer on meso- than on exo-corium) and lateral abdominal spots yellow; tarsi, beak, and antennae testaceous. Head produced slightly more than length of eye beyond anterior transocular line, narrowly rounded anteriorly, subtruncate medially; vertex slightly carinate-margined, generally punctate in irregular transverse rows, impunctate posteriorly; pronotum with coarse punc- tures antero-laterally, practically impunctate elsewhere; scutellum moderately punctate, except on anterior disk, which is almost im- punctate; corium emarginate apically with scattered punctures basal- ly, scarcely punctate on posterior two-thirds, except along veins; lateral area of metapleurum narrowed and acute anteriorly, im- punctate; sternites numerously punctate, smoother medially; sixth sternite in both sexes subangulate anteriorly, fifth and fourth but little constricted medially; ventral exposure of male hypopygium large, punctate, the hind margin (Fig. 100) very slightly reflexed; dorsal rim (Fig. 100) gradually basined, widest at lateral angles, hind wall declivitous; genital plates of female punctate, more than half as long as sixth sternite, a little longer than postventer, hind margin slightly concave. Length 4-5 mm. Redescribed from the Santa Catharina specimens listed below which agree with notes made from the type material. Four of the five speci- mens from the Germar Collection, labelled basalis appear to be con- specific and are the basis of the concept of the species here adopted. Of three females at Lwow labelled '^basalis m.[ihi], Brazil,” two (one of which is the allotype) are satisfactorily alike, while the third is not certainly of the same species. A male in the Berlin Museum, labelled “Brazil, Sellow,” appears to represent the same species and is considered the holotype. Of Walker’s species, proxima, the holotype female, Petropolis, Brazil, and a paratype, Constancia, Brazil, January 1857, H. Clark (British Museum), have been studied and found to be this species. Other specimens seen are from Cara Pintada, Parana, Brazil, June 2, 1922 (Warsaw Museum); and Santa Catharina, Brazil, Liiderwaldt (Stettin Museum); Sao Paulo, Brazil, Espirito Santo, Brazil, and Rio Grande do Sul, Brazil, Breddin Collection (Deutsches Ent. Inst.). A quite striking feature of this species, and one in which it parallels insula, is the dark brown color of the two anterior veins (marked R and S in Fig. 10) of the hind wing. In most species these veins are McAtee & Malloch: Revision of the Thyreocorin*t:. 217 almost colorless, or, as in australis, only the anterior one (S) is pig- mented. 6. Galgupha (Euryscytus) caudata sp. nov. Black, corial patch red; tarsi and beak, testaceous; antennse with the basal three segments mostly testaceous, and the two apical seg- ments chiefly fuscous. Head produced about length of eye beyond anterior transocular line, front margin slightly carinate, almost evenly rounded; vertex with anterior submargin, tylus, and occipital portions with fine punc- tures or none, remaining portions shallowly coarsely punctate; pro- notum rastrate in transverse impression, with coarse punctures laterally, and fine ones elsewhere; scutellum numerously punctate, the punctures coarsest antero-laterally, finest antero-discally ; meso- corium and veins punctate (except posteriorly) ; lateral area of meta- pleurum punctate interiorly; sternites with coarse punctures laterally, punctures finer, or subobsolete, medially; sixth sternite subangulate anteriorly, the preceding sternites little constricted medially; genital plates about two-thirds as long as sixth sternite and about equal in length to postventer; inner margins about two-thirds as long as pos- terior, the latter straight and transverse. Length, 4.5 mm. Holotype female, San Antonio, Argentina, Reimoser (Vienna Museum). 7. Galgupha (Euryscytus) caudiculata sp. nov. This form is much like G. caudata, but differs as noted in the key and as follows: pronotum practically impunctate, except for the usual lateral group of coarse punctures; genital plates about half as long as sixth sternite, and distinctly longer than postventer. Length 4.5 mm. Holotype female, San Antonio, Argentina, Reimoser (Vienna Museum). 8. Galgupha (Euryscytus) contra sp. nov. iL^neous-black, large corial marking pale yellow, abdominal spots orange-yellow, tarsi testaceous, antennae and beak fusco-testaceous. Head produced about length of eye beyond anterior transocular line; anterior margin carinate, subtruncate medially, subsinuate later- ally; tylus finely, lateral portions of vertex coarsely, and occipital strip not at all, punctate; pronotum with sparse coarse punctures laterally and in extremities of transverse impression, finely or obso- letely punctate elsewhere; scutellum coarsely punctate antero- laterally, finely so elsewhere except for anterior disk which is polished; lateral area of metapleurum impunctate; sternites copiously punctate. 218 Annals of the Carnegie Museum. the punctures more lightly impressed medially, the fourth and fifth moderately constricted medially, the sixth broadly subangulate an- teriorly, thrice as long as ventral exposure of hypopygium, the latter coarsely punctate, its hind margin scarcely reflexed, broadly sub- angulate-emarginate medially, low convex laterally; dorsal rim of hypopygium widest at lateral angles, the exterior half all around nearly flat, the interior sloping, hind wall low, sloping, notched medially. Length 3.5 mm. Holotype male. Villa Lutecia, near San Ignacio, Misiones, Argen- tina, 1911, E. R. Wagner (Paris Museum). 9. Galgupha (Euryscytus) contracta sp. nov. Black with aeneous reflections, corial patch yellowish to reddish, reaching claval suture, but only about one-third as long as corium; touches of yellow or red about front end of tylus also; lateral spots on abdominal segments yellowish to dull reddish, sometimes nearly obsolete; tarsi, beak, and antennae testaceous, the latter two organs sometimes subfuscous with the extremities of the segments paler. Head produced about length of eye beyond anterior transocular line; anterior margin not carinate-reflexed, varying from narrowly to rather broadly rounded; puncturing of vertex varying from a few shal- low punctures on each side of the disk, the remainder nearly impunc- tate, to numerous distinct punctures, or even radiating wrinkles, with only occipital portion smooth; punctures prominent only antero- laterally on pronotum, and but lightly impressed everywhere on scutellum, except in antero-lateral angles; corium only obsoletely punctate, except along veins. Lateral area of metapleurum with a few punctures along inner side. Beak reaching third sternite; sternites shallowly punctate laterally, smoother medially, sixth angulate anteriorly, preceding sternites somewhat constricted medially, fifth most so; ventral exposure of hypopygium lightly punctate, trans- versely channelled, hind margin as viewed from below, slightly con- cave medially, convex laterally. (Fig. 88). Dorsal rim broad an- teriorly and laterally, sloping from outer edge, somewhat tumid within and anterior to lateral angles, hind wall thinner, more declivate. Length 4-4.5 mm. Holotype male, Gefe Lagoas, Alinas Geraes, Brazil, Dec. 17, 1898 (Stettin Museum); paratypes, Rio Negro, Parana, Brazil, H. Beenke (Hamburg Museum) ; Sao Paulo, Breddin Collection (Deutsches Ent. Inst.); Antonio da Barra (near Bahia), Brazil, Ch. Pujol (Paris Museum). An unsatisfactorily variable complex, apparently agreeing, how- ever, in genital characters. McAtee & Malloch: Revision of the Thyreocorin^. 219 10. Galgupha (Euryscytus) corvina Horvath. Euryscytus corvinus Horvath, G., Ann. Mus. Nat. Hung., XVII, 1919, pp. 228-229 [Argentina]. Jet-black, shining, lateral abdominal spots pale yellow; beak, antennse, and tarsi testaceous. Vertex broader between eyes than long (Fig. 77), produced about length of eye beyond anterior transocular line, truncate medially, inconspicuously carinate-margined, coarsely but shallowly punctate, except posteriorly where impunctate; pronotum coarsely punctate antero-laterally, practically impunctate elsewhere; scutellum with sparse, shallow punctures, impunctate on anterior disk; corium shal- lowly punctate; lateral area of metapleurum acute, but not linear anteriorly, impunctate (larger in female than in male) ; sternites with numerous but not deeply impressed punctures, sixth subangulate anteriorly in both sexes, fifth and fourth moderately constricted medi- ally; ventral exposure of hypopygium nearly flat longitudinally (as in other black-winged species), the posterior margin not at all re- flexed, very shallowly concave as seen from below (Fig. 96;) dorsal rim (Fig. 96) flat anteriorly, this portion below level of lateral angles, where the rim is widest and more declivitous than anteriorly, hind wall rather broad, moderately declivitous; puncturing of sternites more pronounced in female than in male; genital plates half as long as sixth sternite, a little longer than postventer, posterior margin concave. Length 4-4.25 mm. Holotype female, Tucuman, Argentina, 1906, Arpad Vezenyi (Budapest Museum); other specimens from Quatro, Minas Geraes, Brazil, E. R. Wagner, 1903; Laguna Mamaita, 25 kilometers north of Icano, Chaco de Santiago del Estero, E. R. Wagner, 1904, 1914 (Paris Museum); Catamarca (Argentine Museum); La Merced, and Zuviria, Argentina, Reimoser (Vienna Museum); Petropolis, Brazil, Ohaus (Dresden Museum). II. Galgupha (Euryscytus) cruenta Horvath. Euryscytus cruentus Horvath, G., Ann. Mus. Nat. Hung., XVII, 1919, pp. 229-230 [Mexico]. Basal red or yellowish spot on corium extending from costa to claval suture and about half as long as corium. Vertex broadly rounded anteriorly, copiously punctate throughout including tylus and occipital border; pronotum punctate throughout, most decidedly so laterally, semi-obsoletely so over most of disk, nearly smooth posteriorly, scutellum punctate throughout, least conspicuously so on anterior disk; lateral metasternal area punctate interiorly; sternites moderately punctate, smoother medially, especi- 220 Annals of the Carnegie Museum. ally sixth; narrow exposure of male hypopygium punctate, hind margin moderately reflexed, convex medially, concave each side, dorsal rim widest and highest at lateral angles, depressed elsewhere to or below plane of central disk. Length 3.5-4 mm. Ilolotype and paratypical males, Ocotlan, Mexico; paratype male, Mexico, Procoff (Budapest Museum). 12. Galgupha (Euryscytus) curvata sp. nov. Shining aeneous black, scutellum and elytra reddish-brown pos- teriorly; corial patch and abdominal spots yellow; tarsi, antennae, and beak testaceous. Head produced about length of eye beyond anterior transocular line, front margin slightly carinate, subtruncate medially and nearly straight laterally in male, about evenly rounded between eyes in fe- male; vertex punctate, except posteriorly, most coarsely so on lateral portions of disk; pronotum coarsely punctate laterally, subobsoletely so elsewhere, punctures slightly rastrate in extremities of transverse impression; scutellum numerously punctate, the punctures fine on posterior declivity, and nearly obsolete on anterior disk; corium sparsely punctate except along veins; lateral area of metapleurum attenuate anteriorly, impunctate; sternites copiously coarsely punc- tate laterally, nearly smooth medially; sixth subangulate in both sexes, the preceding sternites, however, not greatly constricted medially; ventral exposure of male hypopygium moderate, punctate, hind mar- gin only slightly reflexed, narrowly concave-emarginate medially, low convex laterally, dorsal rim nearly flat, widest laterally, hind wall thin; genital plates of female distinctly punctate, less than half as long as sixth sternite, and scarcely equal to postventer, inner margins two- thirds as long as posterior, the latter distinctly curved. Length 3.5-4 mm. Holotype male. South America, Signoret Collection and allotype female, Rio Grande do Sul (Vienna Museum). 13. Galgupha (Euryscytus) curvatula sp. nov. /Eneous black, corial patch and abdominal spots yellow; beak, antennae, and tarsi testaceous. Head produced about length of eye beyond anterior transocular line, front margin slightly carinate, subtruncate medially, low convex laterally; vertex sparsely and shallowly punctate in general, impunc- tate posteriorly; pronotum coarsely punctate laterally and about ex- tremities of transverse impression, finely punctate along anterior margin, almost impunctate elsewhere; scutellum numerously punc- tate, the punctures fine on posterior declivity and practically obsolete on anterior disk; corium punctate along veins and on anterior half of mesocorium, but impunctate on posterior part of that moiety of McAtee & Malloch; Revision of the Thyreocorin^. 221 the elytron; lateral area of metapleurum acute anteriorly, impunctate; sternites numerously coarse-punctate laterally, nearly smooth medi- ally; sixth rather broadly rounded anteriorly, fifth and fourth but little constricted medially; genital plates finely punctate, about half as long as sixth sternite and about equal to postventer; inner margins about half as long as posterior, the latter nearly straight and trans- verse. Length 3.5 mm. Holotype female, Bahia, Brazil, A. David (Paris Museum). 14. Galgupha (Euryscytus) difficilis Breddin. Thyreocoris difficilis Breddin G., Abh. Senckenberg. Naturf. Gesell., XXXVI, I, 1914, p. 55 [Brazil]. Black, marking on corium reddish-orange, extending along claval suture until the latter disappears beneath scutellum, but scarcely bordering scutellum (Fig. 41), produced a little farther posteriorly on meso- than on exo-corium; lateral margins of sixth, fifth, and a varying number of anterior sternites reddish. Head produced about length of eye beyond anterior transocular line, inconspicuously carinate-margined, truncate anteriorly; back of vertex, disk of pronotum, and anterior disk of scutellum nearly im- punctate; elsewhere dorsally numerous, distinct punctures are present; lateral area of metapleurum triangular anteriorly with punctures thickly grouped along inner margin; sternites copiously punctate, sixth angulate and fifth to third subangulate anteriorly, little con- stricted medially; ventral exposure of male hypopygium punctate, transversely channelled, hind margin as in Figs. 86-87; dorsal rim broad anteriorly and laterally, distinctly basined, thinner posteriorly and depressed at median emargination. Sixth sternite of female usually quite angulate anteriorly; genital plates moderately punctate, less than half as long as sixth sternite, slightly shorter than postventer, distinctly shorter on inner than on posterior margin, the latter concave. Length 4-5 mm. Holotype male and allotype female, Sao Paulo, Brazil, and paratype female, Rio Grande do Sul, Brazil, Breddin Collection (Deutsch. Ent. Inst.); specimens labelled maculipennis Germar, Brazil, but not type material of that species (Berlin Museum); other specimens from Missiones, Argentina (Argentine Museum), and from Sao Domingo, Feb. 21, 22, 1922; Rio Putinga, March 4, 1922, Vermelho, June 14, 1922; Therezina, July ii, 1922; Pinheirinhos, April 18, 1923; Foz do Iguassu, March 19, 1923, all localities in Parana, Brazil (Warsaw Museum) ; Rio Negro, Parana, Reichensperger (Helsingfors Museum); Theresopolis, Santa Catharina, Brazil, Fruhstorfer (Berlin Museum); Itu, Brazil, 1901, J. de Joannis; San Ignacio, Argentina, 222 Annals of the Carnegie Museum. 1911, E. R. Wagner (Paris Museum); Sao Paulo; Rio Grande do Sul, Brazil, H. Taeuber (Munich Museum); and same locality, Stiegelmayr (Vienna Museum); Tijuco Preto, Rio Negro, Parana, Brazil, R. Weyl (Hamburg Museum). 15. Galgupha (Euryscytus) foveolata Jensen-Haarup. Euryscytus foveolatus Jensen-Haarup, A. C., Ent. Meddel., XVI, 1926, pp. 47-48 [Brazil]. Jet-black, shining; corium and posterior part of scutellum reddish- brown; basal pale marking of corium about one-fourth as long as corium, ill defined, but little longer on meso- than on exo-corium; beak, antennae, and tarsi, testaceous; legs castaneous; lateral pale spots of abdomen conspicuous both above and below. Head narrowly rounded, almost subacute anteriorly, produced nearly twice length of eye beyond anterior transocular line, dis- tinctly carinate-margined; tylus expanded subapically, prominent apically; vertex coarsely, subcontiguously punctate, except for narrow occipital margin; pronotum punctate throughout, transverse impres- sion usually deep, and conspicuously rastrate; humeral prominences and sinuation of lateral margins in front of them a little more de- veloped than in other species; scutellum distinctly punctate through- out, more or less transversely wrinkled; puncturing of corium deeper and more conspicuous than in other species; lateral areaof metapleurum acute anteriorly, scarcely punctate; sternites copiously punctate, smoother medially; sixth sternite of male broadly subangulate an- teriorly, fifth and fourth slightly constricted medially; ventral exposure of hypopygium large, coarsely punctate, only slightly concave in profile, hind margin nearly straight (or very slightly concave) across median two-thirds; dorsal rim of hypopygium flat, reticulate an- teriorly, sloping, punctate, and wider laterally, hind wall thin and steeply declivate; sixth sternite of female broadly rounded anteriorly, fifth and fourth only slightly constricted medially; genital plates coarsely punctate, about half as long as sixth sternite, fully as long as postventer, hind margins very slightly concave; subgenital plates semi-elliptic, about one-fourth the area of genital plates. Length 3-5-3-75 mm. Ilolotype male, allotype female, and paratypes a pair, Lagoa Santa, Brazil, Reinhardt (Copenhagen Museum); Brazil, L. Sahlberg (Stock- holm Museum); Brazil, Sellow, Olfers (Berlin Museum); Brazil, Barreto, 1840; Minas Geraes, Brazil, 2100 meters; Montagnes des Orgues, Province of Rio Janeiro, Brazil, E. R. Wagner, 1902 (Paris Museum); Pernambuco (British Museum); Petropolis, Sept. 23, 1891, A. Mueller (Munich Museum). McAtee & Malloch: Revision of the Thyreocorin^. 223 1 6. Galgupha (Euryscytus) insula sp. nov. Black, sometimes with aeneous or purplish reflections; corial patch pale yellow to orange, extending farther posteriorly on meso- than on exo-corium; tarsi, beak, and three basal segments of antennae, testace- ous, apical segments fuscous; abdomen without pale lateral spots. Head (slightly deformed in the type) produced a little more than length of an eye beyond anterior transocular line, carinate-margined, truncate anteriorly, sinuate laterally; posterior portion of vertex, median parts of pronotum and anterior disk of scutellum almost impunctate, remainder of upper surface with distinct, chiefly round, punctures. Lateral area of metapleurum broad anteriorly with two to three rows of punctures along inner margin; within the postero- lateral angle of metapleurum is a heavily punctate rounded depres- sion almost imitating the ostiolar field in texture. Sternites copiously punctate medially, all the sutures with sweeping anterior curvatures; sixth sternite of male angulate anteriorly (the apex rounded) sinuate sublaterally, as long as the preceding sternites together, of which the third to the fifth are slightly constricted medially, with slight anterior median convexities; posterior margin of sixth sternite evenly con- cave, distinctly though slightly reflexed; ventral exposure of hypo- pygium, punctate, distinctly channelled transversely, the reflexed hind margin, broadly concave medially, convex laterally; dorsal rim of hypopygium broad, most so laterally, slightly sloping inwardly from all sides; sixth sternite of female broadly rounded anteriorly, concave posteriorly, about equal in length to genital plates and post- venter together; genital plates punctate, about equal in length to postventer, inner margins slightly elevated, about two-thirds as long as posterior, the latter slightly concave. Length 5 mm. Holotype male and allotype female, Hohenau, Alto Parana, Paraguay, H. Richter (Berlin Museum); paratypes Paraguay and Santa Clara, Paraguay, Cosset, 1900 (Paris Museum); and Missiones, Argentina (Argentine Museum). 17. Galgupha (Euryscytus) jaczewskii McAtee and Malloch. Galgupha {Euryscytus) jaczewskii McAtee, W. L. and Malloch, J. R., Ann. Mus. Zool. Poland, VII, 1928, pp. 38-39 [Brazil]. Black with purplish reflections, corial mark pale yellow, about a third as long as corium; third to sixth segments with pale yellow lateral spots both above and below; beak, tarsi, and antennae testaceous. Head almost evenly rounded anteriorly, produced about one and one-half times length of eye beyond anterior transocular line, carinate- margined; vertex with a fairly large postero-median area impunctate; punctures elsewhere numerous and coarse but shallow; pronotum with coarse and deep punctures antero-laterally, punctures almost obsolete 224 Annals of the Carnegie Museum. discally, most evident in a slender series in transverse impression; scutellum punctate except on anterior disk, most decidedly so near antero-lateral angles; sternites two to five with well marked punctures, fifth sternite only half as long at middle as at lateral margins; sixth sternite with punctures obsolete over most of disk, narrowly rounded anteriorly, about as long as anterior sternites together; ventral ex- posure of hypopygium large, polished, only faintly punctate, not channelled transversely, posterior margin low convex (Fig. loi), sometimes slightly sinuate laterally; cavity opening postero-dorsally, dorsal rim broad and basined anteriorly and laterally, thin and high posteriorly (Fig. loi). Length 3.5-4 mm. Holotype and paratype males, Rio Jordao, April 22, 1922, and male paratype Rio Clara, Serra da Experanca, Feb. 4, 1922, Parana, Brazil (Polish Museum). 18. Galgupha (Euryscytus) labrata sp. nov. ^neous black, basal third of corium pale yellowish, apical two- thirds fuscous to black; postero-lateral angles of metasternum pale; semi-circular spots on lateral margins of abdominal segments both above and below yellow; tibiae and beak castaneous, tarsi and an- tennae testaceous. Head narrowly rounded anteriorly, produced about length of eye beyond anterior transocular line, vertex moderately punctate, except posteriorly; pronotum and scutellum glossy, only finely punctate discally, but more distinctly so laterally; corium only sparsely punc- tured between veins; sternites moderately punctate, a little smoother medially; sixth subangulate anteriorly, the preceding three sternites moderately constricted medially; genital plates punctate, less than half as long as sixth sternite, and slightly shorter than postventer, inner margins about one-third as long as posterior, the latter slightly con- cave, the former abruptly elevated forming conjointly an oval promi- nence, highest subapically. Length 3.8 mm. Holotype female, without data. Fry Collection (British Aluseum). A notable character of the species is the presence of but two pos- terodorsal bristles on the hind tibia. 19. Galgupha (Euryscytus) laevis Stab C [orimelcBna] loevis Stal, C., Rio Hemip. I, 1862, p. 8 [Brazil]. Corimelcena integra Walker, Francis, Catalogue, I, 1867, p. 80 [Brazil]. Bronzy black, corium more reddish-tinged, especially on base of costa, corial patch sometimes faintly indicated; sternites three to six with yellowish lateral spots; beak, antennae, and tarsi, testaceous. Head broadly rounded (sometimes subtruncate) anteriorly, pro- duced less than half length of eye beyond anterior transocular line, McAtee & Malloch: Revision of the Thyreocorin^. 225 carinate-margined ; punctures nearly obsolete on back of vertex, disk of pronotum, and anterior disk of scutellum, numerous and well- marked elsewhere dorsally; lateral area of metapleurum attenuated to a mere line anteriorly, impunctate; sternites copiously punctate, smoother medially; sixth subangulate in males (Fig. 82), narrowly rounded in females (Fig. 79), about as long as preceding three together, each of which is somewhat constricted medially; ventral exposure of male hypopygium, large, punctate, almost flat longitudinally; dorsal rim (Fig. 93) broad anteriorly and laterally (widest here), moderately basined, a little tumid within lateral angles, posterior portion thin, declivate; genital plates of female punctate (Fig. 79), about equal in length to postventer, inner margins somewhat elevated, shorter than posterior, the latter slightly oblique and concave. Length 4-5 mm. Holotype and paratypical males, Brazil, F. Sahlberg (Stockholm Museum); other specimens from Montagnes des Orgues, near La Tijuca, Province of Rio de Janeiro, Brazil, E. R. Wagner, 1902 (Paris Museum); and Rio Grande do Sul, Brazil (Vienna Museum); holotype male and allotype female of Integra Walker, Rio de Janeiro (British Museum). 20. Galgupha (Euryscytus) lucretia sp. nov. Black with a steely-blue luster, corial marking orange-red, more than half as long as corium, distinctly longer on meso- than on exo- corium, bordering scutellum nearly a millimeter behind claval suture; no lateral pale markings on abdomen; beak, antennae, and tarsi testaceous. Head slightly sinuate before eyes and rounded anteriorly, produced about length of eye beyond anterior transocular line, without carinate- margin; puncturing traceable on almost entire dorsal surface but nearly obsolete on discal portions; lateral area of metapleurum fairly broad anteriorly about two-thirds of its width occupied by two irregular rows of punctures. Sternites moderately punctate, smoother medially; sixth angulate anteriorly in male, not reflexed at apex, and slightly convex in center of apical outline; ventral exposure of hypo- pygium punctate, the posterior margin (Fig. 92) distinctly almost evenly reflexed, though slightly convex, as viewed from above or below, dorsal rim broad anteriorly and laterally rather abruptly declivate to the central basin, posteriorly the rim is slightly depressed and otherwise as described in key. Sixth sternite of female sub- angulate anteriorly, genital plates coarsely punctate, shorter than fifth sternite at middle, about half as long as sixth and about equal to postventer; inner margin shorter than posterior, the latter straight. Length 5-5.5 mm. Holotype male, Sta. Lucretia, Sta. Cruz, Mexico, June 22, 1905, F. Knab (U. S. N. M.); allotype female, Guatemala (Breddin Collection. 226 Annals of the Carnegie Museum. Deutsch. Ent. Inst.); three female paratypes, Teapa, Tabasco, Mexico, February, H. H. Smith (British Museum). 21. Galgupha (Euryscytus) mammula sp. nov. Distinctly aeneous; corial patch pale yellow; no lateral spots on sternites; beak and antennae castaneous; tarsi testaceous. Head produced less than length of eye beyond anterior transocular line; vertex obliquely wrinkled on each side of tylus anteriorly, shallowly punctate almost throughout, anterior margin distinctly reflexed, convex in outline, a little emarginate medially; pronotum coarsely, but shallowly, punctate antero-laterally, more finely and sparsely punctate elsewhere; scutellum numerously punctate periph- erally, almost impunctate on anterior disk; clavus extrorsely, meso- corium and veins punctate; lateral area of metapleurum truncate anteriorly, punctate interiorly; sternites numerously coarse-punctate laterally, smoother medially, impunctate on middle of fifth and sixth; anterior margin of sixth sternite subangulate, produced medially, undulate sublaterally, the preceding sternites with parallel, but less pronounced undulations, none of them very much constricted medially, sixth sternite shorter on median line than fifth and fourth combined; genital plates punctate, about two-thirds as long as sixth sternite and about equal to postventer; inner margins about two- thirds as long as posterior, the latter slightly concave, but transverse in position, inner posterior angles slightly elevated. Length, 5 mm. Holotype female, S. Catarina, Liiderwalt (Stettin Museum). 22. Galgupha (Euryscytus) nitida sp. nov. | Black, highly polished, with aeneous reflections; corial marking stramineous, only about one-fourth as long as corium, nearly as long on exo- as on meso-corium, bordering claval suture for about three- fourths of its length; sternites three to six with yellowish lateral spots; beak, antennae, and tarsi testaceous or paler. Head subtriangular anteriorly, produced more than twice length of eye beyond anterior transocular line, feebly carinate-margined ; a few j subobsolete punctures discernible on head, whole dorsum of pronotum j practically impunctate; scutellum impunctate on anterior disk and j apical fourth, moderately punctate elsewhere, the punctures deepest near antero-lateral angles. Lateral area of metapleurum angulate ji but not linear, anteriorly without punctures. Sixth sternite of male ji angulate or subangulate anteriorly; ventral exposure of hypopygium jj punctate, hind margin scarcely reflexed, slightly and shallowly con- , cave as seen from above or below, dorsal rim broad, coarsely pitted, I anterior portion almost level, the transversely elliptical basin, exca- I vated from the lateral angles and posterior wall, the latter thin and of | nearly uniform height. Sixth sternite of female rounded anteriorly McAtee & Malloch: Revision of the Thyreocorin^. 227 and posteriorly, genital plates about half as long as sixth sternite, and about as long as postventer, coarsely punctate, the inner edges distinctly elevated, and inner angles slightly produced, hind margin slightly concave. Length 3-4 mm. Holotype male, and allotype female, Paraiso, Canal Zone, Jan. 17, 1911, Aug. Busck; paratypes, same locality, Jan. 20, 1911, E. A. Schwarz, July 17, A. H. Jennings; Porto Bello, Panama, March 12, 1911, Aug. Busck; March 9, 1911, E. A. Schwarz; Tabernilla, Canal Zone, July 31; Cabima, Panama, May 17, 1911, Aug. Busck (U. S. N. M.). 23. Galgupha (Euryscytus) obesa sp. nov. Black, corial patch yellowish near costa, suffused with reddish brown on mesocorium, about half as long as corium; no pale lateral spots on abdomen; beak, antennae, and tarsi testaceous. Body thick, short, obovoid; head produced about length of eye be- yond anterior transocular line, deflexed, carinate-margined, truncate medially, punctures only slightly impressed on vertex, pronotum (except laterally), and disk of scutellum; broad peripheral region of scutellum with numerous well marked punctures; corium distinctly punctate, except on subcosta anteriorly and mesocorium posteriorly. Sternites with copious fine puncturing, polished medially, sixth extensively so, and with a few coarser punctures laterally, except on second on which they are distributed all the way across; sixth sternite rounded subangulate anteriorly (Eig. 83), fifth, fourth, and third slightly constricted medially; ventral exposure of hypopygium short, punctate, only slightly channelled transversely, hind margin (Fig. 83) most prominent medially, this portion shallowly emarginate, a shallow sinuation also on each side of central lobe, lateral portions convex. Length 3.5 mm. Holotype male, San Luis, Paraguay, Reimoser (Vienna Museum). A feature of the type specimen is the minutely shagreened or alutaceous surface of the abdominal sternites, which character is to a lesser extent also noticeable on the vertex. 24. Galgupha (Euryscytus) opacifrons sp. nov. Black, shining, slightly aeneous, corial patch and abdominal spots yellow to pale orange; tarsi stramineous, beak and antennae testaceous. Head produced about twice length of eye beyond anterior trans- ocular line; front margin slightly carinate, outline between eyes a para- bolic curve; eye slightly recessive, the outline a little incurved (Fig. 76); vertex coarsely punctate discally, finely punctate laterally, and impunctate posteriorly; pronotum coarsely punctate laterally, finely punctate elsewhere, the punctures in region of transverse impression 228 Annals of the Carnegie Museum. more or less rastrate; scutellum punctate throughout, the punctures coarsest antero-laterally, finest antero-discally ; corium punctate along veins and on pale part of mesocorium, the posterior part of mesocorium largely impunctate; lateral area of metapleurum small, acute an- teriorly, punctate, if at all, at juncture with ostiolar surface; sternites coarsely punctate laterally, nearly smooth medially; sixth subangulate anteriorly, the preceding sternites, however, but little constricted medi- ally; ventral exposure of hypopygium ample, punctate, scarcely chan- nelled transversely, hind margin (Fig. 98) concave medially, convex laterally; dorsal rim distinctly widest laterally, anterior portion slightly depressed forming a transverse crescentic area, which is not so steeply declivate interiorly as the lateral and posterior walls, hind wall high, thin at top, central basin deep, capacious. Length 4 mm. Holotype and paratypical males, Chapada, Brazil, October, H. H. Smith (Carnegie Museum). 25. Galgupha (Euryscytus) opercula sp. nov. Dull aeneous-black, costa and scutellum posteriorly reddish-brown; beak, antennae, and tarsi testaceous. | Vertex broad, subtruncate anteriorly, carinate-margined, trans- j versely wrinkled, copiously and coarsely punctate; pronotum plenti- | fully punctate throughout, most coarsely so antero-laterally; scutellum ' punctate throughout, but not so thickly so as pronotum; corium | mostly punctate. Lateral area of metapleurum acute anteriorly, j impunctate. Sternites with numerous coarse punctures, somewhat , smoother medially; sixth subangulate anteriorly, about equal in length to anterior three together, each of which is noticeably con- | stricted medially; ventral exposure of male hypopygium large, semi- j circular, coarsely punctate, all margins raised, the posterior almost 1 straight (Fig. 94); dorsal rim (Fig. 94) narrow anteriorly, declivate I interiorly, lateral angles broad, basined, hind wall thin, steeply slop- i ing within. Length 4.5 mm. I; Holotype male, Mexico, 1883, Bilimek (Vienna Museum). | 26. Galgupha (Euryscytus) parae sp. nov. , The description of apicata will serve in almost every respect for j parce, except as noted in key and as follows: lateral area of meta- i pleurum punctate interiorly; ventral exposure of male hypopygium channelled transversely. Length 3-3.5 mm. I Holotype male, Para, Brazil (Carnegie Museum) and allotype fe- j male, same locality, Uhler Collection (U. S. N. M.). 27. Galgupha (Euryscytus) parallela sp. nov. Black, highly polished, corial marking pale yellowish, about one- third length of corium; lateral spots on segments yellowish, not joined McAtee & Malloch: Revision of the Thyreocorin^. 229 along connexivum in specimens seen; beak, antennae, and tarsi testa- ceous. Head narrowly rounded anteriorly, produced about one and one- half times length of eye beyond anterior transocular line; vertex feebly carinate-margined, almost impunctate; numerous punctures traceable on pronotum, but shallow and ill defined; punctures evident on scutellum, except on anterior disk and on apex, deepest, as usual, near antero-lateral angles. Lateral area of metapleurum angulate, but not acuminate anteriorly, more or less punctate on inner margin. Sixth sternite of male subangulate anteriorly, fifth and fourth moder- ately constricted medially; ventral exposure of hypopygium short, punctate, transversely channelled, hind margin (Fig. 103) almost evenly concave; dorsal rim (Fig. 103) rather flat anteriorly, well basined within lateral angles and hind wall, which is thin, moder- ately high, and has two indistinct straight, transverse ridges across inner face; sixth sternite of female rounded anteriorly, slightly convex in middle posteriorly; genital plates coarsely punctate, a little less than half as long as sixth sternite, about equal to postventer, inner margin shorter than posterior, slightly elevated, inner posterior angles not at all produced, posterior margin straight. Length 4 mm. Holotype male and allotype female, Santarem, Brazil, June 1919, S. M. Klages (Carnegie Museum); paratypes, Coroico, Bolivia, H. Taeuber (Munich Museum). There is a pale yellowish mark at the apex of costa of corium in this species, least noticeable in the male, and in this respect the species resembles apicata, but the basal corial yellow mark is much smaller than in that species, and the basin of the male hypopygium is more evenly and extensively excavated. 28. Galgupha (Euryscytus) punctata sp. nov. Black, rather dull anteriorly, more shining posteriorly, corium and scutellum reddish-brown apically; connexivum reddish, connecting the lateral abdominal spots; edge of hypopygium reddish; beak, an- tennae, and tarsi testaceous. Head produced only about half length of eye beyond anterior transocular line, truncate medially, sinuate between eye and trunca- tion, distinctly carinate-margined; vertex broader between eyes than long, with few, shallow, coarse punctures on each side of the middle; a group of large, deep punctures near lateral margin of pronotum, and near anterior angle of scutellum, a band of semi-obsolete punctures across middle of scutellum; corium with normal puncturing; on re- mainder of dorsum (including apical portions of scutellum and this is unusual) puncturing is obsolete; lateral area of metapleurum broad, impunctate, angulate anteriorly; sternites numerously punctate, smoother medially; sixth subangulate anteriorly, fifth and fourth 230 Annals of the Carnegie Museum. moderately constricted medially; ventral exposure of hypopygium, large, punctate, almost flat longitudinally, dorsal rim as in Fig. 95; hind margin (Fig. 95) slightly concave medially, convex laterally. Length 4.5 mm. Holotype male, Mexico, Uhler Collection (U. S. N. M.). 29. Galgupha (Euryscytus) rasilis Horvath. Eiiryscytus rasilis Horvath, G., Ann. Mus. Nat. Hung., XVH, 1919, p. 230 [Brazil]. i^]neous-black, highly polished, apical portions of corium and scutellum more or less reddish-brown; corial patch yellowish, about a third as long as corium; lateral abdominal spots on segments three to six in both sexes; similar spots on ultimate segment of female; beak, antennae, and tarsi stramineous. Head narrowly rounded anteriorly, produced about one and one- half times length of eye beyond anterior transocular line; feebly carinate-margined ; vertex in general numerously, but shallowly, punctate, impunctate posteriorly; pronotum with only faint traces of punctures, puncturing slightly evident in a broad band behind middle, and well marked near antero-lateral angles of scutellum; corium punctate basally, impunctate apically, except along veins; lateral area of metapleurum, angulate, but not acuminate, anteriorly, with a row of punctures along inner side in male, and two rows in female; sternites sparsely punctate, the sixth in both sexes polished discally and very broadly rounded anteriorly (sometimes with a slight secondary angulation in middle in males), the fifth and fourth much, and the third slightly, constricted medially. Ventral exposure of hypopygium polished, but with a few semi- obsolete punctures, slightly channelled transversely, the hind margin rounded, broadly and shallowly concave emarginate, over two-thirds of its width, convex laterally; dorsal rim broad and flat anteriorly, a little tumid within lateral angles, the hind wall on account of its emargination, depressed medially almost to level of bottom of basin. Genital plates of female, punctate, about as long on inner as on posterior margin, two-thirds as long as sixth sternite and twice as long as postventer, the inner posterior angles slightly elevated and produced, hind margin slightly concave. Length 3.25-4 mm. Holotype male and allotype female, Brazil (Budapest Museum); other specimens from Chapada, Brazil, various months (A. M. N. H.; Carnegie Museum); Santarem, Brazil (Carnegie Museum); Brazil and Para, Brazil, Uhler Collection (U. S. N. M.); Bolivia (Argentine Museum); Rio Dagua and Cali, Colombia, W. F. H. Rosenberg; Demerara, Guiana (U. S. N. M.); Sao Paulo, Brazil, Breddin Collec- tion, and a specimen mislabelled “Eastwood, Toronto, VIII,” Breddin Collection (Deutsch. Entomologisches Institut); San Esteban, McAtee & Malloch: Revision of the THVREOcoRiNiE. 231 March 1888, E. Simon (Helsingfors Museum); Paramaribo, Surinam, October 1908, January, Heller; Obidos, Amazonas, Brazil, H. Rolle (Berlin Museum); Bogota, Lindig (Stockholm Museum); Brazil; Province del Sara, Bolivia, Steinbach (Stettin Museum); St. Jean du Maroni, French Guiana, 1914, R. Benoist; Boura, Rorota, French Guiana, 1909, A. Bonhoure (Paris Museum); Peru, Demerara (British Museum); Paramaribo, Dutch Guiana, C. Heller; Itatiaya, Brazil, 700 meters, Dec. 6, 1926, F. Ohaus (Hamburg Museum); Cauca, Colombia, H. Taeuber; French Guiana (Munich Museum). 30. Galgupha (Euryscytus) regularis sp. nov. Black, shining, with somewhat aeneous reflections; corial patch yellow; abdominal spots orange-reddish; ventral appendages missing. Head produced about one and one-half times length of eye beyond anterior transocular line, front margin slightly reflexed, almost evenly rounded; vertex with coarse punctures on disk of each half, finer ones anteriorly, tylus and occipital region almost impunctate; pronotum with some coarse punctures antero-laterally, but with only fine punctures or none elsewhere; scutellum nearly smooth discally, punc- tate peripherally, the punctures coarse anteriorly, finer posteriorly; lateral area of metapleurum punctate along extreme inner margin; sternites with a moderate number of coarse punctures laterally, fewer and finer ones medially; sixth sternite subangulate anteriorly, longer than the preceding three together; each of these sternites has a secon- dary rondure at middle of anterior outline; ventral exposure of hypo- pygium punctate, slightly channelled transversely, hind margin (Fig. 90) shallowly concave almost from side to side; dorsal rim broad and only slightly sloping inwardly all the way round between lateral angles, reticulate and finely striate; hind wall high, steeply declivate. Length 4.5 mm. Holotype male, La Plata, Breddin Collection (Deutsch. Ent. Inst.). 31. Galgupha (Euryscytus) romana sp. nov. iFneous-black, polished; corial marking, somewhat longer on meso- than on exo-corium, lateral abdominal spots, beak, antennae, and tarsi sordid reddish yellow. Head subangulate anteriorly, produced distinctly more than length of eye beyond anterior transocular line, carinate-margined ; coarsely but shallowly punctate, except on tylus posteriorly and occipital region, which are impunctate; pronotum without conspicuous punc- tures, semiobsolete punctures most noticeable about humeral promi- nences; scutellum nearly impunctate on anterior disk, and posterior third, moderately punctate elsewhere; corium punctate along veins 232 Annals of the Carnegie Museum. and with a group of coarse punctures in a slightly depressed area on mesocorium just posterior to color marking, nearly impunctate else- where; lateral area of metapleurum acute anteriorly, punctate in- teriorly; sternites with a moderate number of coarse punctures; sixth sternite of male broadly subangulate anteriorly; ventral exposure of hypopygium coarsely punctate, slightly channelled transversely, hind margin slightly concave medially, convex laterally; dorsal rim broadest laterally, moderately sloping and reticulate within lateral angles and anteriorly, hind wall thin, almost vertical within; sixth sternite of female rounded anteriorly, longer than the preceding two, but shorter than the preceding three sternites together, these only slightly con- stricted medially; genital plates coarsely punctate, about half as long as sixth sternite, and equal to postventer; inner margin distinctly shorter than posterior, the latter straight and transverse. Length 4.5 mm. Holotype female, Brazil, Signoret Collection (Vienna Museum); paratype female, Curityba, Brazil, 1912, P. Lombard (Paris Museum); allotype male and paratypes, Fry Collection (British Museum). 32. Galgupha (Euryscytus) rostrata sp. nov. Black, shining; lateral abdominal spots and corial marking, yellow- ish, the latter but little longer on meso- than on exo-corium, extending to claval suture, but not to edge of scutellum, about one-third as long j as corium; beak, antennae, and tarsi testaceous. Head narrowly rounded, almost subangulate anteriorly, produced | one and one-half times length of eye beyond anterior transocular line, feebly carinate-margined; vertex with coarse punctures, some of them connected by furrows, an impunctate area posteriorly; pronotum with numerous coarse punctures laterally, and a few shallower ones in j transverse impression, otherwise nearly impunctate; anterior disk of 1 scutellum impunctate, a group of coarse punctures near each antero- j lateral angle, remainder of surface with numerous shallower punctures; lateral area of metapleurum narrow, finger-like anteriorly, without I punctures; sternites copiously punctate, sixth subangulate anteriorly, ■ fifth slightly constricted medially; ventral exposure of hypopygium ! punctate, hind margin (Fig. 97) scarcely reflexed, almost evenly || though slightly convex, dorsal rim (Fig. 97) broad, almost level ; anteriorly, sloping laterally, however, into the capacious transverse central basin, hind margin not depressed, thin at edge, but thickened |: submarginally at middle, forming a bridge to central disk. Length ;j 5-6 mm. '! Holotype male, Brazil, Gaudichaud, 1883 (Paris Museum). j This species has the beak much as in Galgupha {Bonaria) longirostris i Berg, but the conspicuous pale yellow lateral spots on sternites, the | presence of a quite strong anterior lateral bristle on all sternites from IVIcAtee & Malloch: Revision of the Thyreocorin^. 233 third to fifth inclusive, and the less elongate form of the insect combine to distinguish it abundantly therefrom. The mid tibiae are missing in the type specimen so that we are unable to decide whether they are, or are not, carinate on posterior side. 33. Galgupha (Euryscytus) sahlbergi sp. nov. iEneous-black, abdominal spots pale orange, tarsi testaceous, beak and antennae fusco-testaceous. Head produced less than length of eye beyond anterior transocular line; anterior margin only slightly carinate, truncate medially, shal- lowly sinuate laterally; vertex with only scattered shallow punctures; pronotum with a few coarse punctures antero-laterally, almost im- punctate elsewhere; scutellum with numerous coarse punctures on anterior half of periphery, polished elsewhere; lateral area of meta- pleurum acute anteriorly, impunctate; sternites copiously punctate, smoother medially; the sixth broadly subangulate anteriorly, with rounded angulations sublaterally, the outlines of preceding sternites correspondingly sinuate, the fourth and fifth but slightly constricted medially, the sixth broadly smooth medially, broadly convex in middle posteriorly; genital plates inserted at a steep angle to plane of middle of sixth sternite, punctate, inner margins three-fourths as long as pos- terior, the latter slightly concave, and posteriorly oblique. Length 5 mm. Holotype female, Petropolis, Brazil, F. Sahlberg (Helsingfors Mu- seum). 34. Galgupha (Euryscytus) signatipennis Germar. 0 [dontos cells] signatipennis Germar, E. F., Zeitschr. f. Ent., I, 1839, p. 42 [Brazil]. Acrotmetus cetratus Horvath, G., Ann. Mus. Nat. Hung., XVII, 1919, p. 226 [Brazil]. iEneous-black, corial patch about one-third length of corium, and about equally long on^meso- and exo-corium, varying from pale yellow to clear reddish; connexivum reddish in some specimens, but there are no distinct lateral abdominal spots; tarsi, antennae, and beak testa- ceous, the last two organs sometimes much infuscated. Head varying from narrowly to evenly rounded, or slightly truncate anteriorly, produced about length of eye beyond anterior transocular line, feebly carinate-margined; vertex numerously punctate, except posteriorly; pronotum coarsely punctate laterally, punctures fairly prominent also in extremities of transverse impression, subobsolete elsewhere; scutellum almost impunctate on anterior disk, rather copiously punctate elsewhere; mesocorium and veins punctate; lateral area of metapleurum broad anteriorly, punctate interiorly; sternites with numerous coarse punctures laterally, smoother medially, the sixth 234 Annals of the Carnegie Museum. and immediately preceding sternites subangulate anteriorly, the sixth longer than all the preceding sternites together, its posterior margin concave, distinctly reflexed; ventral exposure of hypopygium sparsely punctate, transversely channelled, hind margin broadly (sometimes only shallowly) concave medially (Figs. 91), convex laterally; dorsal rim (Fig. 91) broad, almost evenly basined laterally and anteriorly, more declivate posteriorly; internal genitalia of male as in Fig. 84. Genital plates (Fig. 80) of female sparingly punctate, slightly longer than postventer, inner margin nearly as long as posterior, the latter transverse. Length 4-5 mm. Except for the subgeneric characters, and average smaller size, this species is a close mimic of Galgupha (Acrotmetus) schulzi. Pronotum and scutellum sometimes more or less transversely wrinkled and rastrate. Hind coxae as in Figs. 2-3. Holotype in Lwow Museum labelled signatipennis m., Brazil; type material of Acrotmetus cetratus Horvath, Espirito Santo, Brazil, Staudinger, 1898 (Budapest Museum) ; other specimens from Paraguay and Santa Clara, Paraguay, Gosset, 1900 (Paris Museum); Rio Claro, Serra da Esperanza, February 7, 1922; Sao Domingo, February 7; Rio da Areira, March 18, 19, 1922; Fazenda Durski, March 31, April 5, 6, 1922; Rio Jordao, April 22, 1922; Cara Pintada, June 2, 1922; Salto de Uba, Rio Ivahy, July 30, 1922; Rio Ubasinho, August 17, 1922; Villa Rica, Rio Ivahy, December 25, 1922, all in Parana, Brazil (Warsaw Museum); Hohenau, Alto Parana, Paraguay, Richter (Berlin Museum); Est. de Parana, Rio Negro, M. Witte (Deutsches Ent. Inst.); San Antonio, Argentina, Reimoser (Vienna Museum); Petropolis, Brazil, Ohaus (Dresden Museum); Fry Collection (British Museum). 35. Galgupha (Euryscytus) smidtii Fabricius. T [etyra] smidtii Fabricius, J. C., Systema Rhyngotorum, 1803, p. 143 [Amer. merid-l. iEneous-black, corial spot pale yellowish, about half as long as corium, longer on meso- than on exo-corium, and not extending beyond claval suture; beak, antennae, and tarsi testaceous, legs castaneous to black, abdominal segments three to six with pale lateral spots, con- nexivum mostly pale. Vertex of the narrowly, rather than broadly, rounded type, coarsely punctate laterally, more finely punctate on tylus, and impunctate on occiput; pronotum with a group of coarse punctures laterally extend- ing slightly mesad along transverse impression, but with only slight rastration elsewhere, pronotal surface more highly polished in male than in female; scutellum moderately punctate, except on anterior disk; McAtee & Malloch: Revision of the Thyreocorinh!:. 235 lateral area of metapleurum acute anteriorly, not punctate; sternites moderately punctate, not smooth medially except sixth; sixth broadly rounded anteriorly in female, fourth and fifth only slightly con- stricted medially; genital plates decidedly shorter on inner than on posterior margins, coarsely punctate, except on the slightly elevated inner margins, which are only a little produced apically, the posterior margin, therefore, only slightly concave; subgenital plates semi-oval, about half the area of the genital plates; sixth sternite of male sub- angulate apically, the fifth and fourth therefore somewhat more con- stricted medially than in the female, but scarcely to half their lateral dimensions; ventral exposure of hypopygium large, sparsely punctate, scarcely concave as seen from the side, hind margin concave medially (Fig. 102); dorsal rim (Fig. 102) coarsely punctate, broadest at lateral angles, anterior portion gently sloping, bounded on inner side by a definite polished line, rim more decidedly sloping within lateral angles, though there are tumid areas there, hind wall steeply declivate. Length 3.5 mm. Holotype female and allotype male, Amer. mer. Schmidt, Mus. Tond. Lund (Copenhagen Museum). The specimen at Kiel, labelled ''smidtii, Mittelamerika” probably is rasilis Horvath, but is specifi- cally unidentifiable, because the hypopygium is damaged. Brazil, Sellow, Olfers (Berlin Museum). 36. Galgupha (Euryscytus) valvata sp. nov. Black with aeneous reflections, corial mark, about equally long on meso- and exo-corium, less than one-fourth as long as corium, pale yellow, suffused with dusky interiorly; pale yellowish lateral spots on segments not joined along connexivum; beak, antennae, and tarsi testaceous. Head narrowly rounded anteriorly, produced about length of eye beyond anterior transocular line, carinate-margined ; vertex with numerous deep punctures, a considerable area at back, however, al- most impunctate; pronotum with a narrow band of distinct punctures near each margin, but remainder nearly free from punctures; scutellum smooth on anterior disk, lightly punctate over most of the remaining surface, distinctly punctate near antero-lateral angles; corium punc- tate on basal half, almost impunctate apically, except along veins. Lateral area of metapleurum acute, but not acuminate anteriorly, impunctate; sternites coarsely punctured laterally, smoother medially, the larger punctures more or less rastrate; the sixth sternite sub- angulate anteriorly, preceding sternites noticeably shorter medially than laterally; genital plates three-fourths as long as the sixth sternite, longer than postventer; they are in a plane of about 45° from the horizontal axis of the insect, posterior margin decidedly concave. Length 4 mm. Holotype female, Guiana, Leprieur, 2-39 (Paris Museum). 236 Annals of the Carnegie Museum. 37. Galgupha (Euryscytus) varipennis sp. nov. Black with aeneous reflections, elytral marking bicolored, as de- scribed in key, scarcely one-fourth as long as corium ; corium posteriorly, hind margin of scutellum and edge of abdomen both above and below, reddish; beak, tarsi, and antennae testaceous, the two apical segments of latter infuscated. Head almost evenly rounded anteriorly, produced about length of eye beyond anterior transocular line, feebly carinate-margined ; vertex transversely rugulose and coarsely punctate, nearly smooth in middle posteriorly; pronotum coarsely punctate laterally, including extremi- ties of transverse impression, nearly impunctate elsewhere; scutellum smooth on anterior disk, numerously punctate elsewhere; the punctures coarsest on antero-lateral angles; mesocorium, discally, and veins punctate; lateral area of metapleurum broad anteriorly with about three rows of punctures along inner side, a triangular, depressed, coarsely punctate area near postero-lateral angle of metapleurum; sternites with numerous distinct punctures, smoother medially; sixth sternite narrowly rounded anteriorly, fifth and fourth noticeably constricted medially; genital plates about a third as long as sixth sternite', scarcely equal in length to the large subgenital plates (Fig. 81) and less than half as long as postventer, punctate, inner margins elevated and smooth, distinctly shorter than posterior margins which are nearly straight and jointly form a slight and very obtuse anterior angulation. Length 5 mm. Holotype female, Bahia, Brazil, Fruhstorfer, Noualhier Collection (Paris Museum). 38. Galgupha (Euryscytus) vulnerata Horvath. Euryscytus vulneratus Horvath, G., Ann. Mus. Nat. Hung., XVII, 1919, p. 229 iBrazil]. Black, with aeneous, sometimes purplish, reflections, corium and scutellum posteriorly more reddish-brown; corial patch bright reddish in most specimens, yellowish in some, varying from one-third to one- half length of corium; lateral abdominal spots, joined along con- nexivum, reddish to pale yellowish; beak, tarsi, and antennae testa- ceous, the latter more or less infuscated apically. Head narrowly rounded anteriorly, produced about length of eye beyond anterior transocular line, carinate-margined; vertex with numerous well defined punctures except at back; pronotum with coarse well marked punctures laterally, but only faintly impressed punctures discally, sometimes a little more definite, and sometimes rastrate, in and near transverse impression; scutellum punctate, except on an- terior disk, the punctures deepest near antero-lateral angles; corium numerously punctate on basal, sparsely on apical, half, except along veins; lateral area of metapleurum attenuate anteriorly, impunctate; McAtee & Malloch: Revision of the Thyreocorin^. 237 sternites numerously punctate, smoother medially, sixth sternite of male angulate or subangulate, fifth and fourth sternites noticeably constricted medially; ventral exposure of hypopygium large, punctate, nearly flat longitudinally, hind margin not reflexed, dorsal rim slightly depressed in middle anteriorly, but anterior rim scarcely basined, lateral portions of rim distinctly basined, hind wall thin, high and little, if at all, depressed medially; sixth sternite of female rounded anteriorly, about equal in length to fifth and fourth together, both of which are distinctly constricted medially; genital plates, punctate, about half as long as sixth sternite, and as long as postventer; inner margin decidedly shorter than posterior, the latter concave, inner posterior angles moderately produced. Length 3, 8-4. 2 mm, Holotype female, Cuyaba, Matto Grosso, Brazil (Budapest Mu- seum); other specimens from Chapada, Brazil, October, November (Carnegie Museum); Rio Claro, Serra da Esperanza, February 4, 7, 1922; Sao Domingo, February 21, 1922; Pinheirinhos, April 18, 1923, all in Parana, Brazil (Warsaw Museum); Paraguay, Alarch 28, May 18, Fiebrig (Berlin Museum); San Bernardino, Paraguay, Fiebrig (Vienna Museum). Subgenus Bonaria subgen. nov. Principal characters: Corium broad apically, exocorial vein distinctly fuscate, the forks not connate apically; mesocorium with a short vein along claval suture and an outer longer one paralleling margin of scutellum, both veins evanescent basally (Fig. 42); mid tibia without, hind tibia with, longitudinal carinate line; beak un- usually long, but variable in length, in some cases reaching middle, in others the apex of abdomen; third segment of beak as long as, or even longer than, hind tibia; tylus prominent anteriorly; third antennal segment about three times as long as second; antero-ventral armature of fore tibia consisting of bristles only. Subgenotype Thyreocoris longirostris Berg. 39. Galgupha (Bonaria) longirostris Berg. T [hyreocoris] longirostris Berg, C., Hemip. Argentina, 1879, pp. 21-22 [Province of Buenos Aires], Black with aeneous reflections, a cuneate spot at base of corium from costa to claval suture yellowish to reddish; connexiva of posterior two abdominal segments each with a similarly colored mark; antennae subfuscous, the second and third segments paler; beak fuscous, each segment paler apically; tarsi testaceous. A large species of depressed form, rather more narrowed both anteriorly and posteriorly (especially the former) than is usual in the subfamily. Head broadly triangular produced one and one-half 238 Annals of the Carnegie Museum. times length of eye beyond anterior transocular line; vertex obliquely rugulose, copiously and coarsely punctate, except on posterior part of tylus and on an occipital strip. Pronotum and scutellum numerously, but subobsoletely, punctate, so that the surface remains strongly shining; punctures on each of these sclerites most distinct laterally. Corium as in male (Fig. 42) fore tibia with fewer, mid and hind tibiae with more numerous, bristly spines, fewest in the postero-dorsal series. Opaque surface surrounding ostiole extending to anterior margin of mesopleurum and nearly to posterior margin of metapleurum, lateral area impunctate. Venter copiously punctate, little smoother medially in female, but noticeably so in male. Sixth sternite of male sub- angulate anteriorly, nearly as long as the preceding sternites together, the fifth distinctly constricted medially; ventral exposure of hypopy- gium punctate, almost flat longitudinally, hind margin varying from almost evenly convex to slightly sinuate medially; dorsal rim very thin at middle posteriorly, deeply excavated interiorly on both sides, gently sloping inwardly at anterior end; widest at lateral angles, dis- tinctly punctate. Sixth sternite of female very bluntly subangulate anteriorly, about equal in length on median line to fifth and fourth together, fifth scarcely constricted medially, hind margin of sixth convex in middle, concave on each side; genital plates, punctate, less than half as long as sixth sternite, about equal in length to postventer, inner margins distinctly elevated, inner posterior angles acutely pro- duced, hind margin oblique and concave; subgenital plates large, pyriform (Fig. 104). Length 5.5-7 mm. Material: Eight adults including both sexes and one nymph from the Argentine National Museum, without locality labels, a few labelled July; two females from Estancia los Yngleses, Lavalle Ajo, Province of Buenos Aires, Argentina, November 10, 1920, A.Wetmore (Biol. Sur- vey) ; one specimen with illegible locality label, three unlabelled speci- mens (Berlin Museum); Rosario, W. Sorensen (Stockholm Museum). The lack of the anterior lateral bristle on the abdominal sternites is an almost invariable feature of this species, and with it the presence of but a faint reddish mark on the lateral margins of one or two of the sternites of apical half of abdomen appear to connect the species rather closely with some of those in the signatipennis group of the preceding subgenus. Subgenus Gyrocnemis McAtee and Malloch. Gyrocnemis McAtee, W. L. and Malloch, J. R., Ann. Mus. Z06I. Poland, VII, 1928, p. 33. [Subgenotype (orthotype), Odontoscelis maculipennis Germar.] Principal characters: Corium broad at apex (Figs. 40, 43 to 47), one vein in mesocorium, exocorial vein distinctly furcate, the branches McAtee & Mallocii: Revision of the Thyreocorin.e. 239 scarcely connate posteriorly; hind tibia terete, without a longitudinal carinate line on posterior surface. There are several rather well distinguished groups within the present concept of this subgenus. One of these contains species in which the males have a very pronounced transverse depression or groove along the hind margin of the sixth sternite. Several of the species in this group have the third to sixth sternites in the male with very closely placed minute punctures, microscopically piliferous, and in some there are also quite well developed hairs on the central portion of the apex of the sixth sternite. Unfortunately the females of these species are not so readily distinguished from those of other groups, the minute puncturing of the apical sternites of the male being absent, and no hairs present on the sixth sternite, except those found in all species of the genus. We have utilized the comparative distances between the mesccorial and cubital vein and the latter and costa in our key for distinguishing two major segregates of the subgenus, but, while it is of value in separating them into two groups, we realize that these are not what are generally considered 'natural’ groups, the one with the narrower mesocorial space containing several undoubtedly distinct groups, apparently derived from different parent stems. Such arbitrary segregations are proper, when the aim is primarily the identi- fication of the species. It may be that some future worker, with more species available and more data upon their life-histories, will arrive at conclusions as to the limits of the subgenus which are not in accord with those here set forth. Key to the species of the Subgenus Gyrocnemis. I. Distance between the mesocorial and cubital veins at narrowest point not greater than that between the cubital vein and costa at same level (Figs. 43-46) * ; posterior trichobothrium distinctly nearer to lateral margin on sternites three to five than the anterior one (Fig. io6) 2 Distance between the mesocorial and cubital veins at narrowest point greater than that between the cubital vein and costa at same level (Fig. 47, only slightly so in guttiger) ; in the latter, however, and in all species except cydnoidea the posterior trichobothrium is not nearer to lateral margin than the anterior one on at least sternites three and four (Fig. 105) 31 2. Pronotum entirely black 3 Pronotum with a submarginal pale line on each side 5 3. Males 4 Females 9 *See footnote, p. 206 240 Annals of the Carnegie Museum. 4. Corium entirely black; puncturing on vertex not very coarse, somewhat rugose laterally; sternites without pale lateral marks, sixth quite sharply angulate in center of anterior margin, and with a dense transverse brush-like strip of brownish-black erect hairs close to apex on central third or more (Fig. 1 17), the extreme apex with a transverse groove on almost its entire extent diminuta (Van Duzee). Corium reddish or yellowish at base; sternites with pale lateral marks, usually absent on first visible one; sixth without brush-like preapical hairs, some- times with a few sparse microscopic pale hairs centrally near apex 5 5. Sixth sternite with a quite deep transverse apical groove; corium largely yellowish, with more or less developed central fuscous marks, sometimes confined to a dark spot on the exocorium and a streak along the mesocorial vein (which may be united) with a broad mesocorial suffusion; vertex finely punctured, ocelli not, or very little behind, posterior transocular line 6 Sixth sternite without a transverse apical groove; corium yellowish at base, and sometimes with a small subapical pale spot on exocorium; vertex coarsely punctate, ocelli at least as far behind posterior transocular line as twice their diameter 8 6. Hypopygium with an acute process projecting inward from each apical lateral angle (Fig. 118) bicornis sp. nov. Hypopygium without such processes 7 7. Hind margin of hypopygium broadly, and quite deeply emarginate when seen from below, the central portion transverse or almost so (Fig. 129). dimorpha sp. nov. Hind margin of hypopygium not so deeply emarginate when seen from below, the central portion not transverse diversa sp. nov. 8. Corium with a small subcostal yellow spot near apex in addition to the larger basal mark punctifer sp. nov. Corium with only the yellow basal mark, which is smaller than in punctifer. texana sp. nov. 9. Corium entirely black, or brownish-black, without conspicuous pale yellowish basal mark; sternites brownish on lateral margins, not pale yellow or orange; genital plates fully three-fourths as long on inner margins as sixth sternite in center and distinctly longer than the preceding two sternites together, fifth sternite at center fully two-thirds as long as fourth and half as long as third; vertex moderately deeply punctured, carinate on entire extent in front; vertex with moderately large contiguous punctures, ocelli slightly behind transocular line diminuta (Van Duzee). Corium with at least yellow or orange-yellow basal mark; sternites with con- spicuous yellow lateral spots; proportions of sternites not as above 10 10. Vertex deeply and coarsely punctured, larger punctures on central portion at least half as large as an ocellus, the carina well developed on entire extent, ocelli behind posterior transocular line about twice their own diameter; corium with a basal mark and a small isolated subcostal spot near apex yellow; genital plates on inner margins a little over two-thirds as long as McAtee & Malloch: Revision of the Thyreocorin^.. 241 sixth sternite in center and distinctly shorter than fourth and fifth together, the sixth equal to fourth and fifth; apex of abdomen not biundulate. punctifer sp. nov. Vertex rather finely and shallowly punctured, ocelli not, or very little behind posterior transocular line; corium not marked as above, much more exten- sively yellow II 11. Genital plates longer than fourth and fifth sternites together on median line, ultimate tergite biconcave apically 12 Genital plates not longer than fifth sternite on median line; ultimate tergite not biconcave soror sp. nov. 12. Inner margins of genital plates not greatly elevated 13 Inner margins of genital plates conspicuously elevated in an ovipositor-like process 14 13. Genital plates (Fig. no) longitudinaly wrinkled and indistinctly punctate, not longer than sternites three to five together on median line. singularis sp. nov. Genital plates (Fig. in) not wrinkled, but distinctly punctate, longer than sternites three to five together on median line iineata sp. nov. 14. Ovipositor-like process seen from the side is straight on lower margin, and the apex is porrect and bluntly rounded (Figs. 112, 112a) .... dimorpha sp. nov. Ovipositor-like process seen from the side is concave on lower margin, and the apex is decurved and acute (Fig. 112b) acuta sp. nov. 15. Males 16 Females 23 16. Small species, averaging 3 mm. in length; hind margin of hypopygium with a shallow subangular central emargination, on each side of which it is broadly convex (Fig. 128); fore tibia almost invariably with two anterodorsal setulse on basal half, hind tibia usually with but three posterodorsal setula. parva sp. nov. Larger species, rarely less than 4 mm. in length; hind margin of hypopygium otherwise; fore tibia with three or more anterodorsal setulae and the hind tibia with four or more setulae on the posterodorsal surface 17 17. Hind margin of hypopygium with a deep, rounded, or U-shaped central emargination and very slightly, or not at all emarginate laterally 18 Hind margin of hypopygium with an angular or rounded central emargination, and with distinct lateral emarginations also 19 18. Ventral surface of hypopygium with shallow but evident furrows paralleling median concavity of hind margin (Fig. 123), the latter more or less pro- nouncedly U-shaped, the margin yellow and distinctly tumid on inner sur- face of upper lateral angles of the central emargination. . . . concava sp. nov. Ventral surface of hypopygium without evident furrows, sparsely punctate, the median emargination more shallowly rounded (Fig. 126), the margin neither yellow nor tumid at upper lateral angles of emargination. novella McAtee & Malloch. 19. Central and lateral emarginations of hind margin of hypopygium subequal in depth (Fig. 114) triconcava sp. nov. 242 Annals of the Carnegie Museum. Central emargination of hind margin of hypopygium much deeper, and usually wider than the lateral ones (Fig. 121) 20 20. Hind tibiae black, dorsal surface pale yellow below 21 Hind tibiae stramineous, rarely pale brownish above. 22 21. Dorsal rim of hypopygium narrow, flat, widest at lateral angles (Fig. 122). maculipennis Germar. Dorsal rim of hypopygium slightly declivitous all around, without flat area, but slightly tumid within lateral angles fossata McAtee & Malloch. 22. Lateral angles of dorsal rim of hypopygium with a conspicuous yellow mark. inaequalis sp. nov. Lateral angles of dorsal rim of hypopygium without yellow marks. intermedia sp. nov. 23. Small species, averaging about 3 mm. in length; genital plates produced in an ovipositor-like process, which is acute apically and surpasses apex of abdo- men (Fig. 108) parva sp. nov. Larger species, usually over 4 mm. in length; genital plates otherwise 24 24. Tibiae black or brownish-black, not appreciably paler than the femora nor yellow above; lateral margins of vertex brownish yellow on entire extent from eye to eye morbiloci sp. nov. Tibiae always distinctly paler than femora, usually stramineous, the hind pair sometimes black above and yellow below 25 25. Lateral margins of vertex yellowish on entire extent, always conspicuously paler next to eyes and tylus; sixth abdominal sternite narrowly rounded in center, almost subangulate inaequalis sp. nov. Lateral margins of vertex not conspicuously yellowish on entire extent, when partly pale, the most evidently pale portions are on each side of tylus and not next to eyes 26 26. Submarginal pale lines on pronotum very faint, brownish, at no part pale yel- low, and most evident in front, very much darker than the stramineous por- tions of corium; lateral margins of abdominal sternites but faintly marked with pale color soror sp. nov. Submarginal pale lines on pronotum conspicuous, rarely darker than the stramineous portions of corium and on some parts pale yellow; lateral mar- gins of sternites three to seven usually with conspicuous yellow spots 27 27. Genital plates almost straight on posterior margin, slightly backwardly pro- duced at inner apical angle, length of either at middle, or at a point just laterad of the bristle on the subgenital plate, at least one and one-half times as great as the distance from the hind margin at that point to extreme mar- gin of abdomen in same line, the length on inner edge over one-fifth of that of fifth sternite in center fossata McAtee & Malloch. Genital plates quite distinctly concave on hind margin, their inner apical angles quite pronouncedly produced, length of either at middle not, or almost imperceptibly, longer than distance from the hind margin at that point to the hind margin of abdomen 28 28. Sixth abdominal sternite subangulate anteriorly 29 Sixth abdominal sternite rounded anteriorly 30 McAtee & Malloch: Revision of the Thyreocorin^. 243 29. Hind margin of pronotum distinctly paler than remainder of disk; small species, not over 4 mm. in length; ocelli about two and one-half times their own diameter from nearest point of eye margin omissa sp. nov. Hind margin of pronotum not distinctly paler than remainder of disk; large species, about 5 mm. in length; ocelli fully three times their own diameter from nearest point of margin of eye geayi sp. nov. 30. Species deep black in color, the lateral pale line on pronotum bright yellow, contrasting sharply with the general color and more or less distinctly widened posteriorly; genital plates not very conspicuously concave on hind margins, subtransverse maculipennis Germar. Species more brownish black in color, the pale lateral line on pronotum not, or very slightly, widened posteriorly; genital plates quite conspicuously con- cave on posterior margins (Fig. 107) concava sp. nov. triconcava sp. nov. 31. Corium entirely dark 32 Corium partly yellow 34 32. Posterior trichobothrium closer to lateral margin on sternites three and four than the anterior one; fourth and fith sternites subequal in length at middle, the fifth about one-third as long as sixth, the latter rounded in front; punc- tures on most of the vertex deep, contiguous, and for the greater part about half as large as an ocellus cydnoidea sp. nov. Posterior trichobothrium slightly farther from lateral margin on sternites three and four than the anterior one; fifth sternite shorter than fourth, not over one-fifth as long as sixth, the latter narrowly rounded, or subangulate in front; vertex with smaller and shallower punctures, subobsolete laterally . . 33 33. Front margin of vertex reflexed; genital plates slightly raised along inner edges, especially apically, and with a noticeable production of the inner apical angle novatra sp. nov. Front margin of vertex not reflexed; genital plates neither elevated along inner edges nor produced on inner apical angle nitidipennis sp. nov. 34. Mesocorial vein evanescent basally 35 Mesocorial vein evident basally {i.e. basad of the apex of clavus) 42 35. General color ochreous tabida Stal. General color aeneous black, the corium more or less yellowish 36 36. Tibiae dark 37 Tibiae pale 38 37. Lateral angles of dorsal rim of hypopygium distinctly anterior in position; hind margin of ventral exposure convex medially, concave laterally, as seen from below; venter of female with deep, coarse punctures laterally, sixth sternite nearly as long as all of the preceding ones together. . . guttiger Stal. Lateral angles of dorsal rim of hypopygium median in position, hind margin of ventral exposure broadly concave medially, rounded off laterally, as seen from below; venter of female with only faint punctures, sixth sternite much shorter than those preceding together nitens Breddin. 38. Males • 39 Females 40 244 Annals of the Carnegie Museum. 39. Hypopygium, when retracted, almost entirely concealed by sixth sternite; hind margin broadly concave; lateral angles of dorsal rim rather anterior in position, tumid occulta sp. nov. Hypopygium, when retracted, distinctly visible from below; hind margin shallowly triconcave; lateral angles of dorsal rim median in position, ab- ruptly excavated posteriorly differentialis McAtee and Malloch. 40. Sixth sternite rather broadly rounded anteriorly, as long as all the preceding sternites together; subgenital plates more elliptical, about one-third length of genital plates differentialis sp. nov. Sixth sternite rather subangulate anteriorly, shorter than the preceding sternites together; subgenital plates more triangular, about one-half as long as genital plates 41 41. Prosternal sulcus broadly V-shaped; a yellow spot shows on underside of head behind eye, when the suture is slightly open occulta sp. nov. Prosternal sulcus narrowly V-shaped; no yellow spot on underside of head. unica sp. nov. 42. Basal pale mark on corium trifurcate at apex, one ramus on costa, one along, but not over, claval suture, and the third along cubitus; hypopygium of male as seen from below with the hind margin very shallowly concave; the hind wall as seen from above high and thin basigrapha Horvath. Basal pale mark on corium not trifurcate (sometimes present only on costa) ; hypopygium of male not shallowly concave on hind margin or only so in center 43 43. Males 44 Females 48 44. Hind margin of hypopygium seen from below with a deep V-shaped central emargination, which extends transversely almost or quite half the width of the hind margin and almost to middle of exposed surface discally (Figs. 132-133) 45 Hind margin of hypopygium seen from below shallowly or feebly emarginate (Fig. 130) 46 45. Hind margin of hypopygium with a slight lateral emargination on each side of the deep central one (Fig. 132) reinhardti Jensen-Haarup. Hind margin of hypopygium without lateral emarginations (Fig. 133). impressa Horvath. 46. Hind margin of hypopygium with median and lateral emarginations, all three shallow (Fig. 130) (occasionally the central emargination lacking or almost so, var. taperina. Fig. 13 1) cruralis Stal. Hind margin of hypopygium with a more or less evident shallow central emargination, the lateral ones lacking 47 47. Front margin of vertex distinctly reflexed; corium with a pale yellow line from base to apex of costa, which is as pale apically as the subapical exo- corial spot; larger species (4-4,75 mm.) notha sp. nov. Front margin of vertex only faintly and partially reflexed; corium brownish on costa, only noticeably yellowish basally, the apical portion much darker than the yellow gubapical exocorial spot; smaller species (3.5-4 mm.) quadrisignata Stal. McAtee & Malloch: Revision of the Thyreocorin^. 245 48. Entire front margin of vertex distinctly reflexed; corium with a narrow con- tinuous costal stripe that is pale yellow and similar in width to the preapical exocorial spot; fourth and fifth sternites about equal in length, two-thirds as long as sixth; species over 4 mm. in length notha sp. nov. Front margin of vertex sometimes feebly reflexed near eyes; costa usually without a narrow continuous pale yellow stripe, sometimes yellow basally; fourth and fifth sternites less than two-thirds as long as sixth 49 49. Corium yellow along entire costa, the pale color extending to claval suture, except for a short portion about middle; sixth sternite rather broadly rounded anteriorly, equal in length to the preceding three sternites to- gether; scutellum scarcely attaining base of sixth tergite cruralis Stal. Corium with a rather sharply defined round spot about one-third distance from apex, which is pale yellow in color and is not connected with the brownish costal streak, the latter extending over outer branch of exocorial vein and becoming paler basally; sixth sternite more angulate anteriorly; scutellum in normal position extending to or beyond base of sixth tergite . . 50 50. Sixth sternite subangulate anteriorly and distinctly longer than the preceding three sternites together on the median line impressa Horvath. Sixth sternite distinctly angulate anteriorly, and not longer in middle than the preceding three sternites together quadrisignata Stal. Systematic Arrangement of Species of the Subgenijs Gyrocnemis. Space between mesocorial and cubital veins at narrowest point not as wide as that between latter and costal margin at same point. Pronotum with pale submarginal lateral stripe: (Males known): intermedia, inequalis, triconcava, macu- lipennis, concava, novella, fossata, parva. (Males unknown): soror, morbiloci, omissa, geayi. Pronotum entirely dark; Vertex coarsely punctate: diminuta, punctifer, texana. Vertex finely punctate: singularis, lineata, diversa, bicornis, dimorpha, acuta. Space between mesocorial and cubital veins at narrowest point as wide as, or wider than that between the latter and costal margin at same point. Mesocorial vein evident basad of apex of clavus. Corium partly pale yellow: cruralis, notha, quadrisignata, reinhardti, impressa, basi- grapha. Corium entirely dark: cydnoides, novatra, nitidipennis. Mesocorial vein ceasing opposite apex of clavus: guttiger, nitens, occulta, unica, differentialis, tabida. 246 Annals of the Carnegie Museum. 40. Galgupha (Gyrocnemis) acuta sp. nov. Black, corium chiefly orange, costal carina, sections of veins a little beyond middle and suffusion near them, and inner margin from hu- merus including most of clavus, black; lateral abdominal spots yellow; antennae stramineous; beak testaceous; tibiae chiefly yellowish; a pale yellow spot showing behind each eye on lower surface of head when the suture is open.* Head narrowly rounded apically, varying to acute, with the margin of vertex somewhat lamellate and slightly upturned medially, produced more than length of eye beyond anterior transocular line, vertex dis- tinctly punctate, except posteriorly; pronotum coarsely punctate antero-laterally, subobsoletely so elsewhere; scutellum moderately punctate, the punctures deepest antero-laterally, shallowest discally; corium moderately punctate; lateral area of metapleurum with only traces of puncturing along inner side; sternites with scattered coarse punctures laterally and more numerous finer ones discally; sixth sternite much produced anteriorly, as far as antero-lateral angle of fourth sternite, acuminate subangulate, sternites five and four con- stricted medially to less than half their lateral length, broadly sub- angulate anteriorly, third less constricted; genital plates wrinkled, only obsoletely punctate, about equilateral, surface somewhat de- pressed laterally, but inner margins abruptly elevated into a conspicu- ous acute, decurved, ovipositor-like organ, extending as far posteriorly as apex of abdomen (Fig. 112b). Length 4-5 mm. Holotype female, Bonito, Province of Pernambuco, Brazil, January 27, 1883 (U. S. N. M.); paratype females: Bahia, Brazil, Fruhstorfer (Vienna Museum); Petropolis, Brazil, May 1885, Germain (Paris Museum); Petropolis, Brazil, Ohaus (Dresden Museum); Bahia, Brazil (Fruhstorfer), New Freiburg, Brazil, F. Weingreen (Hamburg Museum) ; Capite des Mines (Paris Museum) ; Lagoa Santa, Reinhardt (Copenhagen Museum). Color and puncturing much as in bicornis, of which it may be the female sex. 41. Galgupha (Gyrocnemis) basigrapha Horvath. Euryscytus basigraphus Horvath, G., Ann. Mus. Nat. Hung., XVII, 1919, p. 231 [Peru]. Corial mark yellowish, tending to be trifurcate, one ramus on costa, one along (but not over) claval suture, and the third intermediate along cubitus. Head narrowly rounded anteriorly, tylus sub-prominent, vertex with sparse, shallow punctures; pronotum with a group of distinct punctures on each side, almost impunctate elsewhere; scutellum with McAtee & Malloch: Revision of the Thyreocorin^. 247 sparse fine punctures in general and a group of more pronounced punc- tures near each basal angle; lateral area of metapleurum almost im- punctate; sternites moderately punctate, smoother medially, especially sixth; sixth sternite rounded anteriorly, fifth only slightly constricted medially in both sexes; ventral exposure of male hypopygium polished, with only sparse puncturing, the hind margin very shallowly concave as seen from below, dorsal rim almost flat anteriorly, widest, and moderately sloping laterally, abruptly declivitous posteriorly, the hind wall high and thin; genital plates of female copiously punctate, inner margin slightly elevated, almost as long as posterior, the latter transverse. Length 3. 5-3. 6 mm. Holotype male and allotype female, Pachitea, Peru (Budapest Museum). 42. Galgupha (Gyrocnemis) bicornis sp. nov. Black, shining, scutellum somewhat reddish apically, basal yellow- ish patch nearly half as long as corium, extending over claval suture, extreme apex and apical two-fifths costal region also yellowish, an ivory colored spot on each side of lower posterior margin of head, a small yellowish spot near postero-lateral angle of metapleurum, yellowish lateral spots evident both above and below on all abdominal segments, including hypopygium of male; knees and tibiae stramineous below, fuscous above. Front of head narrowly rounded; vertex moderately punctate, ex- cept posteriorly in middle and between eye and ocellus for a space less than twice width of the latter; pronotum distinctly punctate laterally, subobsoletely rastrate-punctate in a transverse band behind middle, smooth elsewhere; scutellum polished on anterior disk, numerously punctate elsewhere, most deeply so near antero-lateral angles; corium moderately punctate except on subcostal and subapical portions, metapleurum with a band of punctures bordering ostiolar surface posteriorly and extending to lateral margin, lateral area rather broad anteriorly, somewhat punctate or furrowed along inner margin; sternites two to three with coarse, and four to six with copious fine punctures predominating, sixth punctate throughout and not polished as usual in the subfamily; sixth sternite subangulate anteriorly, fifth and fourth distinctly shorter at middle than at lateral margins; hind margin of sixth sternite distinctly carinate-reflexed ; ventral exposure of hypopygium scarcely punctate, cut away laterally, so that only a broad convex central portion remains, beyond which at each side are visible the acute processes of the dorsal rim (Fig. 118); the latter broad, flat, punctate, the lateral angles inwardly hooked and fringed interiorly with long pale hairs, an agglomerated tuft of which at apex suggests a spine, posterior rim entirely interrupted as viewed either from above or below, the only species in which we have so seen it. Length 4.5 mm. 248 Annals of the Carnegie Museum. Holotype male, Goyaz Province, Brazil, 1847, De Castelnaii (Paris Museum); paratype males, Bahia, Brazil, Sellow (Berlin Museum); Lagoa Santa, Reinhardt (Copenhagen Museum); Petropolis, Haas (Stettin Museum); Cape Mines (Paris Museum). 43. Galgupha (Gyrocnemis) concava McAtee and Malloch. Galgupha {Gyrocnemis) concava McAtee, W. L. and Malloch, J. R., Ann. Mus. Z06I. Poland, VII, 1928, pp. 34-35 [Brazil, Paraguay, Argentina, Bolivia]. Black, shining with purplish reflections, margin of vertex usually yellowish on each side of tylus, rarely pale brownish laterally; narrow submarginal vitta in front of humeral prominence of pronotum whitish to yellowish (this color showing through lower surface also), corium chiefly pale yellowish, a blotch near middle of costa and one near inner posterior angle, besides the punctures, fuscous; beak, antennae, tibiae, and tarsi stramineous to testaceous; abdominal segments with yel- lowish lateral spots, visible both above and below. Females are dis- tinctly reddish on posterior half of pronotum and scutellum. Head evenly rounded anteriorly, produced a little more than length of eye beyond anterior transocular line; vertex carinate-margined with numerous subobsolete punctures, smooth mediatily and posteriorly; pronotum with the punctures almost obsolete discally, but well marked, in a band paralleling sublateral pale marking, the latter im- punctate; punctures more evident on scutellum than on pronotum, especially laterally, anterior disk nearly smooth; metapleurum punctate along posterior border of ostiolar surface, this band of punc- tures extending to lateral margin, lateral area slightly punctate along inner margin; sternites moderately punctate, smoothish medianly, sixth subobsoletely punctured except laterally, angulate anteriorly in male slightly constricting fifth sternite; ventral exposure of hypopy- gium somewhat flattened about emargination, slightly transversely wrinkled, and more or less punctate, hind margin with a deep U- shaped central concavity, the upper edge of which occupies about one- third of the margin, slightly sinuate on each side of the median emargination, the thickened portion of the edge at each extremity ot the central concavity yellow, emarginate as described in key and figured (Fig. 123), dorsal (Fig. 124) rim with a median, slightly slop- ing and transversely wrinkled bridge to central disk anteriorly, narrow and abruptly declivitous on each side of this, widening again toward lateral angles, which are concave, posterior wall in general thin with depressions following the emarginations; sixth sternite of female narrowly rounded anteriorly, twice as long as genital plates which are punctate, obliquely concave posteriorly and distinctly produced at inner apical angles (Fig. 107) [genital plates of female distinctly punctate]. Length 4-5 mm. jMcAtee & Malloch: Revision of the Thyreocorin^. 249 llolotype male and allotype female, Chapada, Brazil, November, paratypes same locality, January to November; Bom Fin, Bahia, Brazil, J. D. Haseman (Carnegie Museum) Sapucay, Paraguay, February, W. T. Foster; San Bernardino, Paraguay, K. Fiebrig (U. S. N. M.); Sierra d’Estrella, Minas Geraes, Brazil, De Castelnau, 1847; Matto Grosso, Brazil, De Castelnau; Paraguay, Gosset, 1900 (Paris Museum); Foz do Iguassu, Parana, Brazil, March 22, 1923 (Polish Museum); Chaco, Argentina, Dec. 6, 1897, S. Venturi; Cata- marca, Buenos Aires, Misiones; Salta Tucuman, Argentina; Bolivia (Argentine Museum); Paraguay, K. Fiebrig (Deutsches Ent. Inst.); Campinas, Brazil, March, 1924, F. X. Williams (Van Zwaluwenberg). The following records are of material seen since the original de- scription was published; these specimens therefore are not paratypes. San Ignacio, Misiones, Argentina, Wagner; Petropolis, Brazil, F. Sahlberg (Helsingfors Museum); Paraguay, April 7, Dec. 2, 20, K. F. Fiebrig (Berlin Museum); Province of Sara, Bolivia, Steinbach (Stettin Museum); Puerto Max, Paraguay, Louis des Arts Jr.; Santos, Brazil, Oct. 18, 1893, H. Braun (Hamburg Museum); San Luis, Paraguay, Reimoser; San Bernardino, Paraguay, Fiebrig; Rio Grande do Sul, Stieglmayr (Vienna Museum); Minas Geraes, Brazil, 2100 meters, 1902, E. R. Wagner; San Ignacio, Misiones, Argentina, 1911; Rio Salado, Santiago del Estero, 1909, E. R. Wagner (Paris Museum) ; Espirito Santo, Aragua, Santa Catherina, Brazil (Munich Museum). 44. Galgupha (Gyrocnemis) cruralis St^l. Corimelcena cruralis Stal, C., Rio Hemip. i, 1862, p. 8 [Brazil]. Corimelccna invaria Walker, Francis, Catalogue, i, 1867, p. 81 [Brazil]. T [hyreocoris] circumfusus Berg, C., Hem. Argentina, 1879, p. 20 [Entre-Rios, Argentina]. [Thyreocoris] borellii Montandon, A. L., Viaggio de Dott. A. Borelli nella Republica Argentina e nel Paraguay, XVIII, Hemipteres Heteropteres, Premiere Liste et Descriptions d’Especes Nouvelles, Bol. Mus. Z06I. Anat. Comp. Univ. Torino, N. 219, Dec. 1895, PP- 1-2 [San Pablo, Salta]. T^neous-black, sometimes with purplish reflections, humeral prominences, and periphery of scutellum posteriorly, more or less reddish; corium mostly ochreous, anterior spot and posterior third of mesocorium, veins and adjacent areas more or less infuscated; clavus fuscous; darker specimens vary to a coloration like that of quadrisig- nata] lateral abdominal spots, legs from knees, antennae and beak, stramineous. Head produced somewhat more than length of eye beyond anterior 250 Annals of the Carnegie Museum. transocular line, subangulate to subtruncate anteriorly, not carinate- margined; vertex copiously punctate, except on narrow posterior strip; pronotum distinctly punctate antero-laterally, subobsoletely punctate elsewhere, scutellum numerously punctate, most coarsely so antero- laterally, most finely on anterior disk; corium distinctly punctate anteriorly and along veins, indistinctly punctate posteriorly; lateral area of metapleurum broad anteriorly, almost impunctate; sternites numerously punctate, more polished medially; puncturing scarcely of a finer and denser type in male except on sternites five and six; sixth sternite of male angulate or subangulate anteriorly, posterior margin somewhat convex medially, concave laterally, the sternite as long as the preceding three together; fifth and fourth sternites moderately constricted medially; ventral exposure of hypopygium ample, nearly flat, except laterally, feebly punctate, hind margin carinate, distinctly although slightly sinuate medially and sublaterally (Fig. 130); dorsal rim broad anteriorly, somewhat broader laterally, everywhere sloping from outer margin, hind wall thin, more declivitous; sixth sternite of female rounded to subangulate anteriorly, concave posteriorly, as long as preceding three sternites together; fifth sternite constricted medially to half its lateral length, fourth less contracted; genital plates (Fig. 1 13) large, punctate, more than half as long as sixth sternite, twice as long as postventer, inner margin about as long as posterior, the latter oblique, and slightl}^ concave, the inner posterior angles promi- nent. Length 3.5-5 mm. Holotype and paratype females, Brazil, F. Sahlberg (Stockholm Museum); holotype female of invaria Walker, Santarem, Brazil (British Museum); other specimens from Manaos, Brazil, Miss H. B. Merrill; Villa Montes to Boyuibe, Bolivia, June 1920; El Quemado, Jujuy, Argentina, G. L. Harrington (U. S. N. M.); Taperina, Corumba (March), Santarem, Brazil; Tucuman, Argentina, 480 m., Rosenberg (Carnegie Museum); Jujuy, Salta, Gob. Formosa, 1898; Gob. Chaco, Oct. 20, 1897, S. Venturi; also Bolivia, and Matto Grosso, Brazil (Argentine Museum); Sao Paulo, Brazil; Obidos, Amazonas, H. Rolle, Breddin Collection (Deutsches Ent. Inst.); Tucuman, Argentina, 1906, Vezenyi (Budapest Museum, also Coll. Jensen-Haarup) ; Rio de Janiero, Brazil, F. Sahlberg; Pernambuco (Helsingfors Mu- seum); Corityba, Sao Paulo, Brazil, Lehmann (Berlin Museum); Province of Salta, Argentina, J. Steinbach (Berlin Museum); San Antonio, Argentina, Reimoser (Vienna Museum); Rio las Garzas, Chaco de Santa Fe; Laguna Mamatta, Rio Dulce, Rio Salado, Chaco de Santiago del Estero, Argentina, 1909, E. R. Wagner (Paris Museum) ; Juruapuca, Rio Jurua, Amazonas, Brazil, Oct. 20, 1874 (British Museum). McAtee & Malloch: Revision of the Thyreocorin^. 251 A few specimens differing from the typical variety by lacking the median emargination in the hind border of male hypopygium (Fig. 13 1 ) may be known as var. taperina new variety. Length 4 mm. Holotype and paratype males, Taperina, Brazil (Carnegie Museum); San Antonio, Argentina, Reimoser (Vienna Museum). 45. Galgupha (Gyrocnemis) cydnoidea sp. nov. Fuscous to black, tarsi, beak, and antennae testaceous. Head almost evenly convex between eyes, produced about the length of eye beyond anterior transocular line; pronotum with coarse punc- tures laterally, plentifully but less deeply punctate discally, except at calli, but nevertheless strongly shining; scutellum numerously punc- tate, the punctures coarser laterally, finer discally, almost obsolete on anterior disk; corium moderately punctate throughout; lateral area of metapleurum truncate anteriorly, impunctate; sternites moderately punctate laterally, almost impunctate discally; sixth narrowly rounded anteriorly, preceding sternites moderately constricted medially; genital plates rugoso-punctate, fully as long on inner as on posterior margin, the latter slightly concave, twice as long as postventer. Length 4 mm. Holotype female, Caracas (Helsingfors Museum); paratype female, Colombia, Moritz (Berlin Museum). 46. Galgupha (Gyrocnemis) differentialis McAtee and Malloch. Galgupha {Gyrocnemis) differentialis McAtee, W. L. and Malloch, J. R., Ann. Mus. Z06I. Poland, VII, 1928, pp. 36-37 [Brazil, Bolivia]. Black, shining, spot covering basal third of corium (Fig. 47) except for narrow dark bordering, and apical half of exocorium, except for punctate veins and some fuscous suffusion connected with them, stramineous to reddish; nearly or completely connected lateral spots on abdominal segments both dorsad and ventrad of the narrowly dark carinate margin, beak, antennae, and legs from knees, stramineous. Head broadly rounded anteriorly, margin not carinate, vertex moderately punctate, except on narrow posterior strip; pronotum with a broad band of rather coarse but not deeply impressed punctures on each side, punctures on disk numerous, fine, and only shallowly im- pressed; scutellum with the latter type of punctures sparsely distrib- uted, those near antero-lateral angles a little more distinct; corium with moderate puncturing evident on pale portions and along veins, but not on the darker areas. Lateral area of metapleurum scarcely punctate; sternites with both coarse and fine punctures, the former predominating anteriorly and discally and the latter posteriorly and laterally; trichobothria as in Fig. 105; sixth sternite narrowly rounded 252 Annals of the Carnegie Museum. anteriorly in male, third, fourth, and fifth shorter medially than laterally, fifth most so, sixth with a posterior subterminal groove, the hind margin itself carinate and black; ventral exposure of hypopygium (Fig. 1 1 5) punctate, short, concave both medially and laterally; hypopygium opening almost directly posteriorly, dorsal rim broad, flat, and punctate anteriorly, lateral angles wider, pale, tumid an- teriorly, depressed posteriorly, hind wall channeled; anteriorly and laterally the rim closely fits the central disk (Fig. 125); sixth sternite of female n-arrowly rounded anteriorly, preceding three sternites con- stricted medially, especially the fifth, genital plates punctate, nearly as long on inner as on posterior margin, the latter slightly oblique and concave. Length 4-5 mm. Holotype male, allotype and paratypes, Santarem, Brazil, one of the paratypes labelled July 1919, S. M. Klages, also Taperina, Brazil (Carnegie Museum); Para, Brazil, Uhler Collection; Rio Beni, Huachi, and mouth of Rio Mapiri, Bolivia, September, W. M. Mann, Mulford Biological Expedition (U. S. N. M.); Salto de Uba, Rio Ivahy, Parana, Brazil, Nov. 7, 13, 1922; Rio Ubasinho, Parana, Brazil, March 1924 (Polish Museum). Material examined too late to be made paratypes includes specimens from San Bernardino, Paraguay, K. Fiebrig (Berlin Museum); Rio Grande do Sul, Brazil, Stieglmayr (Vienna Museum); Amazonas, Peru, Breddin Collection (cotype of nitens Breddin, Deutsches Ent. Inst.); Peru, Noualhier, 1898; Santa Cruz de la Sierra, 1834, D’Or- bigny (Paris Museum). 47. Galgupha (Gyrocnemis) diminuta Van Duzee. Enryscytus diminutus Van Duzee, E. P., Ent. News, XXXIV, No. 10, Dec. 1923, p. 305 [Pasadena, Calif.]. Black, shining, with more or less aeneous reflections; lateral margins of abdominal segments without pale spots in two out of the three specimens available. Vertex shorter than broad between eyes, broadly truncate anteriorly, a considerable area at beak impunctate; punctures of pronotum semi- obsolete discally, more definite laterally; punctures of scutellum semi- obsolete on anterior disk, moderately numerous and developed else- where; corium (Fig. 45) punctate basally, smooth apically, except along the veins; metapleurum impunctate posteriorly, except for a row bordering ostiolar surface and a small group of punctures near postero-lateral angle, lateral smooth area acute at apex, with a few punctures along inner margin; sternites copiously punctate, the punc- tures less evident medianly; sixth sternite of male acute anteriorly and produced so that fifth is only half as long in middle as on lateral mar- McAtee & Malloch: Revision of the Thyreocorin^. 253 gin; ventral exposure of hypopygium copiously punctate, hind margin only slightly reflexed, deeply biconcave (Fig. 117); in the dorsal aspect the posterior rim of hypopygium on account of its bisinuation is well below the level of the lateral and anterior portions, the latter are moderately broad, with a wide shallow depression in middle of an- terior rim, median excavation deep, the lateral walls abruptly de- clivitous; fifth sternite o'f female not so much encroached upon medianly as in male, genital plates copiously punctate, fully as long on inner as on posterior margins, the inner apical angles slightly produced, posterior margin very slightly concave. Length 3-3.8 mm. Huachucha Mts., Ariz., Aug. 6, 1905, H. G. Barber (Barber Collec- tion); Los Angeles Co., Calif., D. W. Coquillett (U. S. N. M.). These specimens appear to represent Van Duzee’s species, as in response to an inquiry he informs us that the lunate patch of hairs is present on fifth sternite of the type ; there is some doubt, however, as his phrase “feebly emarginate” relating to the apical margin of male genital segment scarcely is an adequate description for the form be- fore us. 48. Galgupha (Gyrocnemis) dimorpha sp. nov. Black, shining, with steely-bluish reflections, corium chiefly yel- lowish orange, costal carina, extreme base, subapical-subcostal spot, posterior part of mesocorium (these areas sometimes connected), veins in part, and most of clavus, fuscous to black; sharply defined lateral abdominal spots, in both sexes, postero-lateral margin of metapleurum of female, and spot behind each eye, concealed when head is fully retracted, yellow; beak and antennae, testaceous. Head about evenly rounded anteriorly, produced only about half length of eye beyond anterior transocular line, carinate-margined, apex of tylus as in Fig. 136; vertex moderately punctate, except pos- teriorly; pronotum moderately punctate antero-laterally and in ex- tremities of transverse impression, but only subobsoletely so else- where; scutellum moderately punctate except on anterior disk which is almost smooth ; corium (Fig. 43) punctate; trichobothria as in Fig. 106; sternites two and three of male with only scattered coarse punc- tures, the fourth with a few similar punctures on each side of the middle; otherwise sternites four to six, except for median smooth strip, are covered with fine reticulate-puncturing; sixth sternite as long as all preceding sternites together, narrowly rounded anteriorly, fifth and fourth constricted medially to half their lateral length; ventral- exposure of hypopygium moderate (longer than in bicornis), sparsely punctate, not transversely channeled; hind margin shallowly trisinuate (with a median and two sublateral emarginations) (Fig. 129); convex lateral lobes partly pale; dorsal rim flat, broad, punctate, the lateral 254 Annals of the Carnegie Museum. angles a little broader and slightly less punctate than anterior portion; the lateral angles are incurved apically although less incurved than in hicornis, and due to lack of deep emarginations in the hind wall below them, do not form free fang-like projections as in that species; sixth sternite of female greatly produced anteriorly, one and one-half times as long as preceding sternites together, almost dividing fifth sternite and constricting fourth at middle to half its lateral length (Fig. 112); genital plates punctate, inner and apical margins about equal in length, each longer than basal margin, inner margins elevated and produced in a straight ovipositor-like process, which is bluntly rounded apically (Fig. 112a), posterior margin concave; subgenital plates elongate- pyriform, oblique. Length 4-4.5 mm. Holotype male, allotype female, and paratypes, Villarica, Paraguay, October 1923, P. Jorgensen (U. S. N. M.); paratypes: Bolivia (Argen- tine Museum); San Luis, Paraguay, Reimoser (Vienna Museum). 49. Galgupha (Gyrocnemis) diversa sp. nov. Black; narrow anterior margin of head reddish; corium ochraceous- reddish along veins anteriorly, and fuscous posteriorly, inner margin of clavus, costal carina and a subapical subcostal blotch black, and posterior part of mesocorium fuscous; faint postero-lateral margin of metapleurum, sharply defined lateral abdominal spots, and a spot behind each eye on extreme posterior underside of head, yellow; beak, antennae, and tarsi testaceous. Head evenly rounded anteriorly, produced less than length of eye beyond anterior transocular line; vertex compressed to a thin margin in front, but not carinate, moderately punctate, except posteriorly; pronotum coarsely punctate laterally, subobsoletely punctate else- where; scutellum moderately punctate, smoothest on anterior disk; corium sparsely punctate; lateral area of metapleurum smooth; sternites smooth medially, second, third, and most of fourth with only scattered coarse punctures; an area near each lateral margin posteriorly on fourth and all of fifth and sixth (except the polished median por- tion) are covered with fine, reticulate puncturing; sixth sternite as long as preceding sternites together, subangulate anteriorly, the fifth and fourth each constricted medially to half their lateral length; ventral exposure of hypopygium moderate, sparsely punctate, not channeled transversely, very shallowly trisinuate; dorsal rim flat, as broad anteriorly as at lateral angles, the latter pale, declivate both interiorly and posteriorly; hind wall thin, steeply declivitous. Length 3.4-4 mm. Holotype male. Province of Salta, Argentina, J. Steinbach (Berlin Museum); paratype male, San Bernardino, Paraguay, Fiebrig (Vienna Museum). McAtee & Malloch: Revision of the Thyreocorin^. 255 50. Galgupha (Gyrocnemis) fossata McAtee and Malloch. Galgupha {Gyrocnemis) fossata McAtee, W. L. and Malloch, J. R., Ann. Mus. Zool. Poland, VII, 1829, pp. 33-34 [Brazil]. Black, front margin of head reddish yellow, most conspicuously so medially; lateral submargin of pronotum, costa and about half of remainder of elytral surface, pale yellowish; the posterior half of meso- corium, an irregular blotch anterior to it, a median subcostal spot, and veins especially posteriorly, fuscous to black; semi-circular lateral spots on abdominal segments, both above and below, contiguous along connexivum, except for the linear lateral carina, reddish yellow; antenna and beak testaceous, legs from knees chiefly stramineous, the spines and the tibiae beneath infuscated. Anterior margin of head smoothly convex in outline, finely carinate, but scarcely reflexed; vertex finely to moderately punctate, except for narrow posterior stripe; pronotum with numerous rather coarse punc- tures bordering submarginal stripe (which is smooth), finely punctate elsewhere, the punctures from transverse impression posteriorly sometimes faintly rastrate; scutellum densely punctate on antero- lateral angles, moderately punctate elsewhere, except on anterior disk, which is almost smooth; lateral area of metapleurum smooth, sternites of male with moderate punctures, most numerous laterally, sparse discally, sixth sternite almost wholly impunctate; this sternite in male angulate anteriorly, preceding sternites constricted medially; ventral exposure of hypopygium polished, indistinctly punctate, posterior margin with a broad angulate notch medially which traverses about one-third of the ventral surface; on either side of this the margin is essentially convex to extreme lateral angles, but is truncated suffici- ently so that from some angles it appears shallowly sinuate; the dorsal aspect of hypopygium is as follows, anterior rim for a distance slightly exceeding width of central disk, broad, wrinkled, and slightly concave; on each side this abruptly descends into a deep fossa bounded by the narrow lateral and posterior walls; the latter is somewhat thickened, calloused, and usually pale near lateral extremities; the sternites are more numerously and coarsely punctate in the female than in the male, the sixth is rounded anteriorly and all the preceding sternites con- stricted medially; the genital plates are moderately punctate, nearly as long on inner as on posterior margin, the latter nearly straight and transverse, the inner margins slightly elevated and the inner pos- terior angles briefly produced. Length 3.5-4.25 mm. Holotype male and allotype female, Santa Catherina, and paratype female, Espirito Santo, Brazil, Breddin Collection (Deutsches Ent. Inst.); paratypes, Rio Ubasinho, Aug. 15, 17; Salto da Uba, Rio Ivahy, Oct. 31; Salto da Ariaranha, Rio Ivahy, Nov. 26, all dates in 1922, Parana, Brazil (Polish Museum). 256 Annals of the Carnegie Museum. Material studied too late to be made paratypes, includes specimens from: Argentina, Jensen-Haarup (Helsingfors Museum); Hohenau, Alto Parana, Paraguay, H. Richter (Berlin Museum); Rio Grande do Sul, Stieglmayr (Vienna Museum); Paraguay, 1900, Gosset (Paris Museum); Hohenau, Paraguay (Munich Museum). 51. Galgupha (Gyrocnemis) geayi sp. nov. iP^neous-black on head and anterior parts of pronotum and scutel- lum, reddish-brown on posterior parts of latter two sclerites; sub- marginal vitta on pronotum, and corium chiefly, sordid yellowish; punctures, veins, median blotch on exocorium, and mesocorium pos- teriorly, fuscous; lateral abdominal spots faintly yellowish; tibiae fuscous dorsally, stramineous ventrally ; tarsi and antennae stramineous ; beak testaceous. Head rounded anteriorly (subtruncate medially), produced a little more than length of an eye beyond anterior transocular line; vertex carinate-margined, shallowly but copiously punctate, except on tylus and posteriorly; pronotum coarsely punctate antero-laterally above submarginal vitta, which is smooth, and in extremities of transverse impression where the punctures are distinctly rastrate, subobsoletely punctate elsewhere; scutellum with numerous moderately impressed punctures, anterior disk almost impunctate; corium distinctly punc- tate anteriorly, indistinctly punctate posteriorly, except along veins; lateral area of metapleurum obliquely striate, but scarcely punctate; sternites moderately punctate, smoother medially; sixth narrowly rounded anteriorly, about equal in length to preceding three together, fifth and fourth slightly constricted medially, paralleling in shape the anterior margin of sixth; genital plates punctate, less than half as long as sixth sternite, but longer than postventer, inner margin distinctly shorter than posterior, the latter concave, inner posterior angles moderately produced. Length 4.2 mm. Holotype female, Llanos, Venezuela, F. Geay (Paris Museum). 52. Galgupha (Gyrocnemis) guttiger Stal. Thyreocoris guttiger Stal, C., Ent. Zeit, Stettin, XXIII, 1862, p. 94 [Mexico]. Black, shining, sometimes with aeneous or purplish reflections; elytral patch stramineous to reddish, about a third as long as corium; abdomi- nal segments with yellowish lateral spots both above and below; legs castaneous to black; tarsi and antennae stramineous; beak testaceous. Head rounded to subtruncate anteriorly, produced about length of eye beyond anterior transocular line; tylus usually depressed sub- apically; vertex copiously shallowly punctate throughout; scutellum, except anterior portion, and pronotum, except posterior part, and disk copiously, but very shallowly, punctate for the most part, the punctures McAtee & Malloch: Revision of the Thyreocorin^. 257 deeper laterally upon both sclerites; corium sparingly punctate; metapleurum punctate bordering ostiolar field, the series of punctures from posterior margin of ostiolar region extending to lateral edge of the sclerite; tergites as in Fig. 8; arrangement of spiracles, tricho- bothria and bristles as in Fig. 7; sternites moderately punctate, third to fifth in both sexes shorter at middle than at lateral margin, fifth decidedly shorter; sixth sternite of male (Fig. 119) almost impunctate discally, subangulate anteriorly, slightly carinate-margined pos- teriorly; ventral exposure of hypopygium much reduced, projecting but little beyond sixth sternite, except for the convex median portion (Fig. 1 19), as a consequence of reduction of this portion the basin of the hypopygium opens posteriorly rather than dorsally as is usual in the subfamily, and that part of dorsal rim anterior to lateral angles constitutes less than half of the whole instead of two-thirds or more as usual; anterior rim broad, flat, punctate, depressed before level of central disk, lateral angles prominent, tumid, declivitous, posterior rim scarcely elevated above central disk, except at middle; sixth ster- nite of female narrowly rounded to subangulate anteriorly, as long as preceding three sternites together; genital plates more than half as long as sixth sternite, twice as long as postventer, finely punctate, inner margin nearly as long as posterior, the latter slightly carinate, concave, and oblique; genitalia of female in expanded condition (Fig. 15). Length 3. 2-4. 2 mm. Holotype male, Mexico, Salle (Stockholm Museum) ; and many other specimens representing the following countries: Bolivia, Colombia, Trinidad, Panama, Venezuela, Nicaragua, Honduras, Costa Rica, Guatemala, Mexico, United States, Cuba, Jamaica, Haiti, and Re- public of Dominica. In the United States the species occurs in Texas; the localities thus far known to us being Brownsville, Sharpsburg, and Victoria. 53. Galgupha (Gyrocnemis) impressa Horvath. Euryscytus impressus Horvath, G., Ann. Mus. Nat. Hung., XVH, 1919, pp. 227- 228 [Bolivia!. Euryscytus impressus var. melas Horvath, G., op. cit., p. 228 [Peru]. Color and puncturing throughout, general form and shape of ster- nites as in quadrisignata; ventral exposure of hypopygium as in reinhardtii, posterior margin lacking lateral sinuations (See Fig. 133), dorsal rim (Fig. 134) about the same. Length 3.5-4 mm. In the typical variety the costa is yellowish for about one-fourth its length at base and the subapical spot is large; in the form melas the costa is black at base, and the subapical spot is small. Holotype and paratype males of var. impressa, Bolivia; holotype male of var. melas, Vilcanota, Peru; allotype female of var. melas. 258 Annals of the Carnegie Museum. Callanga, Peru (Budapest Museum); and a male from Huadquina, Peru, 5000 ft., July 30, 1911, Yale Peruvian Expedition; El Quemado, Jujuy, Argentina, G. L. Harrington (U. S. N. M.); Callanga, Peru, Breddin Collection (D. E. S.) ; Rio Claro, Serra da Esperanza, Feb. 4 to 12, 1922; Therezina, Aug. ii, 1922; Curityba and vicinity, July 30, Aug. 15, October, 1923; Rio Ubasinho, March 1924 (Warsaw Museum); Brazil, Olfers (Berlin Museum); Santa Catherina, Brazil, Liiderwaldt (Stettin Museum); Neu Freiburg, Brazil, F. Wiengreen (Hamburg Museum); Peru; Merida, Venezuela; Yungas de Coroico, Bolivia, Fassel (Vienna Museum); Bahia, Brazil, 1845, E. Mocquerys (Paris Museum); Peru, M. Kirsch (Dresden Museum); Callanga, Vilcanota, Marcapata, Peru; Coroico, Bolivia; H. Taeuber (Munich Museum). 54. Galgupha (Gyrocnemis) inaequalis sp. nov. Similar in form, sculpturing and color to concava, but strongly dis- tinguished by the yellow margined vertex, and the well marked genitalic characters described in key (Fig. 120); the punctures towards sides of pronotum average deeper than those of concava and there is a more distinct band of punctures across pronotum; the hypopygium is- more or less yellowish, the posterior rim showing yellowish from above. Dorsal rim of hypopygium deeply channeled, the inner ring bordering central disk lower than outer, the latter so narrow as to be carinate anteriorly, widening gradually to lateral angles, but everywhere steeply declivate, the channel broad and deep; lateral angles pale, slightly tumid; hind wall thin, high, interrupted by the emarginations. Genital plates of female less than half as long as sixth sternite, but longer than postventer, punctate, the inner posterior angles prominent and some- what produced. Length 4-4.5 mm. Ilolotype male, allotype female, and paratypes, Bonda, Colombia, June, July (Carnegie Museum); paratypes. Llanos, Venezuela, F. Geay (Paris Museum); San Esteban, March 1888, E. Simon; Caracas (Helsingfors Museum); Caracas, Gallmer (Berlin Museum); Colombia, April-June 1908, E. Pehlke (Stettin Museum); Colombia, 1830, Lebas (Paris Museum); Caracas, Venezuela, 1877, O. Thieme (British Mu- seum); Venezuela (Vienna Museum); Coroico, Bolivia (Munich Museum). 55. Galgupha (Gyrocnemis) intermedia sp. nov. Similar to concava, but differing from that species as does inceqiialis in having more rastrate puncturing in extremities of transverse im- McAtee & Malloch: Revision of the Thyreocorinh£. 259 pression of pronotum; the posterior half of pronotum and scutellum in the holotype are reddish ; dorsal rim of hypopygium shallowly channeled anteriorly as in concava, deeply fossate laterally; hind wall thin, de- clivate, interrupted by the median emargination. Length about 4 mm. Holotype male, Taquara, Brazil, October (Carnegie Museum); specimens labelled maculipennis Germar, Brazil but not type material of that species (Berlin Museum). 56. Galgupha (Gyrocnemis) lineata sp. nov. Black, corium and narrow portion of adjacent clavus yellowish to reddish, thin costal line, blotch about middle of costa, and sometimes connecting markings obliquely across corium toward inner posterior angle, black; abdominal spots yellowish; legs from knees castaneous, tarsi, antennae, and beak testaceous. Vertex moderately rounded, produced about length of eye beyond anterior transocular line, shallowly punctate; punctures subobsolete on pronotum, except antero-laterally ; scutellum moderately punctate, except on anterior disk, subrastrate on declivity; corium generally punctate; sternites with a moderate number of coarse punctures, smoother medially; sixth sternite subangulate anteriorly, longer on median line than anterior sternites together; fifth, fourth, and third constricted medially, the former two to less than half their lateral length; genital plates (Fig. iii) punctate, half as long as sixth sternite, thrice as long as postventer, about as long on inner as on posterior margins, the latter oblique and slightly concave. Length 3.5-4 mm. Holotype and paratype females, San Antonio, Argentina, Reimoser (Vienna Museum); paratype, Brazil, Osten Sacken (Berlin Museum). 57. Galgupha (Gyrocnemis) maculipennis Germar. Odontoscelis maculipennis Germar, E. F., Zeitschr. f. Ent., I, 1839, p. 41. The description of concava will answer for this species, except for differences noted in key. Ventral view of male hypopygium as in Fig. 121; dorsal view, Fig. 122. Length 3. 5-3. 8 mm. In the Germar Collection, Lwow Museum, are two specimens labelled maculipennis m[ihi], Amer. Mer.” of which the first is selected as holotype (the other is a different species, probably notatipennis Stal) ; other specimens examined are labelled, Perico to Embarcacion, Argentina, May 19, 1920, G. L. Harrington (U. S. N. M.); Argentina, Jensen-Haarup (Helsingfors Museum) ; Paraguay, K. Fiebrig (Berlin Museum); San Bernardino, Paraguay, Fiebrig (Vienna Museum). 260 Annals of the Carnegie Museum. 58. Galgupha (Gyrocnemis) morbiloci sp. nov. General coloration and puncturing as in concava, with completely pale-margined vertex as in incBqualis] distinguished by genitalic char- acters as noted in key and by larger size; anterior margin of vertex, pronotal submargins, and pronotum and scutellum, posteriorly, red- dish; ocelli thrice their own diameter from eyes; sixth sternite about as long as preceding three combined, fifth and fourth slightly con- stricted medially, their anterior outline paralleling that of sixth medially; genital plates punctate, less than half as long as sixth sternite, longer than postventer, inner margin decidedly shorter than posterior, the latter concave, but only slightly oblique, inner posterior angles prominent, slightly produced. Length 5 mm. Holotype female, Tehuantepec, Mexico, June 30, F. Knab (U. S. N. M.). 59. Galgupha (Gyrocnemis) nitens Breddin. ^ Thyreocoris nitens Breddin, G., Abh. Senckenberg, Naturforsch. Gesell., XXXVI, I, 1914, p. 55 [Cumbase, Amazonas, Peru]. Black, polished, with aeneous reflections, fore margin of vertex touched with yellowish or reddish near middle, corial patch (Fig. 44) yellowish, about one-third length of corium, not extending over claval suture, a small yellowish subcostal spot about one-fourth from apex of corium, extreme apex also more or less pale; yellowish lateral spots on abdomen evident both above and below on all segments in- cluding hypopygium of male; fore tibiae testaceous above, more or less fuscous beneath in both sexes, other tibiae concolorous with femora. Head rounded anteriorly, produced less than length of an eye be- yond anterior transocular line (Fig. 135) ; vertex not carinate-margined, with numerous moderately impressed punctures, occiput smooth, ocelli but slightly more than their own diameter distant from eye; pronotum very glossy with numerous well marked punctures laterally, and fine traces of punctures distinguishable elsewhere; scutellum with numerous punctures, most distinct near antero-lateral angles, nearly obsolete on anterior disk; exposed corium more coarsely punctate basally, more finely apically; venation of hind wing as in Fig. 10; ster- nites two, three, and four medially with scattered coarse punctures; fourth laterally, fifth and sixth with dense fine punctures; sixth sternite of male narrowly rounded anteriorly, the fifth considerably and the fourth more moderately constricted medianly (Fig. 116); ventral exposure of male hypopygium almost impunctate, trans- versely channeled, hind margin distinctly thickened, broadly but shallowly concave medianly, convex-laterally (Fig. 116); dorsal rim rather broad, flat and punctate-wrinkled anteriorly, crossed there by a McAtee & Malloch: Revision of the Thyreocorin^. 261 straight longitudinal furrow, slightly concave immediately within the broad lateral angles, then slightly tumid and gently sloping, hind margin, low, carinate, with a broad bridge interiorly to central disk, venter of female sparsely punctate, smoothish medianly, sixth sternite broadly rounded anteriorly (Fig. 109), equal in length to preceding three sternites together, fifth and fourth somewhat constricted medially, genital plates subobsoletely punctate, third and fourth as long as sixth sternite, twice as long as postventer, almost equilateral, inner margins somewhat tumid, elevated, especially posteriorly, inner posterior angles somewhat produced, posterior margin oblique and slightly concave. Length 4-4.5 mm. Holotype male, Amazonas, Peru, Breddin Collection (Deutsches Ent. Inst.); other specimens from Cuatra Ojos, Bolivia, Nov. 1913; Las Juntas, Bolivia, December 1913; Inachacha, Bolivia, alt. 2500 m., March 1921, J. Steinbach; Chapada, Brazil, November (Carnegie Museum) December (American Museum); Rurrenabaque, Bolivia, October, November; Santa Helena, Bolivia, August, W. M. Mann, Mulford Biological Expedition (U. S. N. M.); Santa Cruz de la Sierra, D’Orbigny, 1834; Chignitos, Bolivia, 1834, D’Orbigny (Paris Museum) ; Callanga, Peru, Garlepp (Dresden Museum); Amazonas, Brazil; Cauca, Colombia; Vilcanota, Peru; Pachitea, Peru (Munich Mu- seum). Two species were confused under the original description of nitens\ in selecting a holotype we have chosen the specimen conforming most to Breddin’s description of the male; the “female” he cites which is a male, is differentialis McAtee and Malloch (p. 251). 60. Galgupha (Gyrocnemis) nitidipennis sp. nov. Greenish black, polished; anterior margin of vertex, scutellum post- teriorly, and corium, reddish tinged; legs in general castaneous; tarsi, antennae, and beak stramineous. Head evenly rounded anteriorly, produced less than length of eye beyond anterior transocular line; vertex not carinate-margined, shorter, less convex and deflexed than in novatra, moderately punctate, except along hind margin; pronotum coarsely punctate laterally, obsoletely punctate elsewhere; scutellum moderately punctate in general, the punctures sparser and shallower on anterior disk; corium obsoletely punctate, except along veins; sternites with sparse coarse punctures, smooth medially, sixth about as long as preceding three together; genital plates punctate, half as long as sixth sternite, longer than post- venter. Length 4.5 mm. Holotype female, Haut Sarare, Venezuela, F. Geay (Paris Museum). 262 Annals of the Carnegie Museum. 6i. Galgupha (Gyrocnemis) notha sp. iiov. Of the quadrisignata group, much like the typical Central-American form, but distinguished, as noted in key. Length 4-4.5 mm. Holotype and paratype males, San Antonio, Argentina; allotype and paratype females, Chicoana, Salta; paratype male. La Merced, Argen- tina, Reimoser (Vienna Museum); El Quemado, Jujuy, Argentina, G. L. Harrington (U. S. N. M.). 62. Galgupha (Gyrocnemis) novatra sp. nov. Shining black, margin of abdomen both above and below, and costa obscurely yellowish; antennae, beak, tibiae, and tarsi fusco-testaceous. Head deflexed and narrowly rounded apically; vertex rather obsoletely punctate everywhere, except on posterior part of tylus and hind margin which are smooth; pronotum with a group of well-marked punctures sublaterally on each side, and semiobsolete punctures else- where, which, though evident under oblique lighting, do not prevent the surface from appearing highly polished; scutellum with same type of puncturing, coarsest near antero-lateral angles, finest on anterior disk, and moderate elsewhere; corium punctate, less conspicuously so on posterior third; lateral area of metapleurum rounded anteriorly, impunctate; sternites moderately punctate, smoother medially, especially sixth; the latter narrowly rounded and produced anteriorly, as long as preceding sternites together, all of which are shorter medi- ally than laterally, the fifth most constricted (to less than half its lateral length) ; genital plates moderately punctate, about half as long as sixth sternite and longer than postventer, inner margins elevated, especially posteriorly, where distinctly produced about as long as pos- terior, the latter slightly concave. Length 5 mm. Holotype female, Jujuy, Argentina (Argentine Museum). 63. Galgupha (Gyrocnemis) novella McAtee and Malloch. Galgupha {Gyrocnemis) novella McAtee, W. L., and Malloch, J. R., Ann. Mus. Zool. Poland, VII, 1928, pp. 35-36 [Brazil]. Coloration and puncturing as in G. fossata, the insect differing in hypopygial structure both from this species and from G. concava and its allies. Ventral exposure of hypopygium indistinctly punctate and transversely wrinkled, the wrinkles more or less paralleling posterior emargination, the latter of a concave (not angulate) type and occupy- ing a third of posterior margin, which is convex each side (Fig. 127); dorsal rim punctate anteriorly, where at middle it is moderately slop- ing, its outer border however gradually merging into the broader antero-lateral portions, which extend almost to lateral angles, and are there abruptly declivate, and have a lobulate appearance; next the McAtee & Malloch: Revision of the Thyreocorin^. 263 central disk are two deep fossae; hind wall thin, interrupted correspond- ng to median emargination, abruptly declivate each side of this, less abrupt where it passes into lateral angles (Fig. 126). Length 3 mm. A male subsequently found in material from the Dresden Museum has the hypopygium slightly different (Fig. 127) but it is somewhat teneral and this may account for the variation from type. Locality, Curopreto, Ohaus. Holotype male. Fazenda Durski, Parana, Brazil, March 31, 1922 (Polish Museum); another male from same locality, with hypopygium missing, is not made a paratype. 64. Galgupha (Gyrocnemis) occulta sp. nov. dEneous black, corium chiefly stramineous, lateral carina, median subcostal spot, median blotch and posterior third of mesocorium and mesocorial vein, black; femora castaneous, tibiae and beak testaceous, tarsi and antennae, and lateral abdominal spots, stramineous. Head evenly rounded anteriorly, produced about half length of eye beyond anterior transocular line; vertex coarsely punctate laterally, but only finely punctate medially and posteriorly, wrinkled trans- versely on tylus and obliquely on each side; pronotum distinctly punctate laterally, but only subobsoletely punctate elsewhere; scutel- lum moderately punctate, smoothest on anterior disk; corium moder- ately punctate; fine puncturing on sternites of male only lateral on third, covering most of fourth, nearly all of fifth, and all of sixth; the second has only coarse puncturing and this type extends posteriorly on disk of third and fourth; all sternites smoother medially; sixth sub- angulate anteriorly, the fifth greatly and the fourth moderately con- stricted medially; ventral exposure of hypopygium very small, smooth, crescent-shaped, margin slightly elevated all around; dorsal rim narrow posteriorly, broad anteriorly and much more so laterally, tumid all around, the lateral angles conspicuously tumid and pale. Venter of female coarsely punctured laterally, more finely and sparsely punctate medially; sixth sternite narrowly rounded anteriorly, the fifth and fourth moderately constricted medially; genital plates punctate, as long as fourth and fifth sternites together on median line, more than half as long as sixth, and distinctly longer than postventer, inner margins three-fourths as long as posterior, the latter nearly straight but slightly posteriorly oblique in position. Holotype male, Bahia, Brazil, Noualhier Collection (Paris Museum); allotype female and paratype male, Brazil (Dresden Museum). 65. Galgupha (Gyrocnemis) omissa sp. nov. Similar in puncturing and coloration to concava \ distinguished by the characters noted in key. Sixth sternite as long on median line as the 264 Annals of the Carnegie Museum. preceding three sternites together; genital plates punctate, about one-third as long as sixth sternite, and slightly longer than postventer; hind margin moderately concave, inner posterior angles a little pro- duced. Length 3.5 mm. Holotype and paratypes females, Chapada, Brazil, April (Carnegie Museum). 66. Galgupha (Gyrocnemis) parva sp. nov. Reddish brown, infuscated on disk of vertex, anterior half of pro- notum, and anterior angles of scutellum; anterior submargin of vertex between eyes, narrow lateral submargin of pronotum before humeral prominence, and most of corium, pale yellowish; the extreme carinate margin of head, pronotum, and corium is dark, and the puncturing and veins chiefly, and a few blotches on corium are of ground-color. Underparts castaneous, lateral spots on segments both below and above pale yellow, tibiae stramineous with fuscous spines. Head rounded to subtruncate apically, produced more than length of eye beyond anterior transocular line, vertex copiously, but shal- lowly, punctured, very few punctures on pale submargin, and extreme posterior portions; pronotum copiously but shallowly punctate, ex- cept on callosities and pale submargins; scutellum numerously punc- tate, the punctures semi-obsolete on anterior disk, deepest and largest near antero-lateral angles; corium punctate along veins, but mostly smooth otherwise; metapleurum with a transverse rastrate strip (more marked in female) bordering ostiolar field posteriorly and extending to lateral margin, lateral area angulate anteriorly, impunctate; sternites moderately punctate, third to fifth shorter in middle than on lateral margins in both sexes; sixth subangulate anteriorly in male, ventral exposure of hypopygium half as long as sixth sternite, impunctate, hind margin carinate but not reflexed, ventral aspect as in Fig. 128, dorsal rim broadest laterally, abruptly declivitous all around, central basin deep, hind wall thin, depressed medianly in consequence of the emargination; sixth sternite of female narrowly rounded anteriorly, as long as preceding sternites together; genital plates impunctate, inner posterior angles produced as an acute piercer, surpassing abdomen, only a narrow lunate portion of subgenital plates visible (Fig. 108). Length 2.8-3 mm. Holotype male and allotype female, Chapada, Brazil, April, paratype male. May (Carnegie Museum); April (A. M. N. H.); Centurion and San Luis, Paraguay, Reimoser (Vienna Museum). 67. Galgupha (Gyrocnemis) punctifer sp. nov. Black, shining, with pale markings as indicated in key; basal pale mark not more than one-fourth as long as corium, extending just McAtee & Malloch: Revision of the Thyreocorin^. 265 to claval suture; legs castaneous, tarsi, beak, and antennae testa- ceous. Head evenly rounded to subtruncate anteriorly, produced about length of eye beyond anterior transocular line, distinctly carinate margined; ocelli about two and one-half times their own diameter from eyes; vertex and broad lateral portions of pronotum with large, deeply impressed subcontiguous punctures; small area on back of vertex, and disk of pronotum with finer, shallow punctures; scutellum impunctate on a small area on anterior disk; moderately punctate elsewhere; subcostal pale spot on corium calloused. Lateral area of metapleurum blunt anteriorly, more or less punctate near inner mar- gin; metapleurum posterior to ostiolar field coarsely punctate; ster- nites moderately punctate, smoother medially; sixth sternite of male distinctly, though broadly angulate anteriorly; ventral exposure of hypopygium short, hind margin distinctly reflexed, shallowly concave from side to side as seen from below; dorsal rim, punctate, broad all around, shallowly basined, even the hind wall broad and of only moderate slope. Sixth sternite of female broadly rounded anteriorly, as long as fifth and fourth together; genital plates coarsely punctate, two-thirds as long as sixth sternite, a little longer than postventer, inner margin somewhat elevated, a little shorter than posterior, inner posterior angles not at all produced, hind margin nearly straight. Length 3.5-4 mm. Holotype male. Cacao Trece Aguas, Guatemala, April 12; allotype female, April 4, E. A. Schwarz and H. S. Barber; paratypes, same locality, March 24 to April 24, Schwarz and Barber; Cordoba, Vera Cruz, Mexico, May 30, June 12, 13, 1908, F. Knab; Paraiso, Canal Zone, Jan. 7, E. A. Schwarz; March ii, 1911, A. H. Jennings; Feb. 8, March 30, 1911, A. Busck; Panama City, Panama, April 12, 15, 1911, Taboga Id., Panama, Feb. 21, 1912, A. H. Jennings; Ancon, Canal Zone, April 13, 1911, E. A. Schwarz; Tabernilla, Canal Zone, A. Busck; Teapa, Tabasco, Mexico, March, H. H. Smith; also Guate- mala, Panama, Vera Cruz, without other data (U.S.N.M.); Costa Rica, “Am. bor.” (Deutsches Ent. Inst.); Brownsville, Texas, June 1901, H. G. Barber (Barber Collection); Aguas Caliente, Guatemala, Keller- man (M. C. Z.); Bolivia, Wanczewicz (Berlin Museum); Rio Frio, Colombia, June 16, 1925 (Iowa State College); Orizaba, Mexico, May 1871, Bilimek (Vienna Museum); Darien, F. Geay; Guanajuato, Duges, 1889; Teapa, Tabasco, March, H. H. Smith (Paris Museum); Mexico, C. Hoge (Hamburg Museum); Turrialba, Costa Rica, H. Taeuber (Munich Museum); Belize, British Honduras, Blancan- eaux (Dresden Museum). 266 Annals of the Carnegie Museum. 68. Galgupha (Gyrocnemis) quadrisignata St^l. Thyreocoris quadrisignatus Stal, C., Ent. Zeit. Stettin, XXIII, 1862, pp. 94-95 [Mexico]. Polished black with seneous reflections, male slightly reddish-brown or paler on costa basally, female more extensively brownish over base of corium, but with no distinct corial patch, a faint subcostal pale spot about one-third distance from apex in both sexes, these pale markings sometimes lacking; lateral pale spots on abdominal segments evident in both sexes, less so in male; knees and tibiae stramineous. Head narrowly rounded to subangulate anteriorly, produced about length of eye beyond anterior transocular line, not carinate-margined ; tylus depressed subapically, vertex with large, but not deep, subcon- tiguous punctures, nearly smooth on narrow occipital area; pronotum with numerous distinct punctures laterally, with a broad transverse band of less distinct more or less rastrate punctures behind middle, anterior and posterior discal areas almost impunctate; scutellum with subobsolete punctures on extreme anterior disk, and numerous dis- tinct punctures elsewhere, deepest in antero-lateral angles; corium punctate basally, but almost impunctate on apical half, except along veins; lateral area of metapleurum rather broad anteriorly, impunc- tate; lateral portions of third sternite posteriorly, and of sternites four to six finely and copiously punctate in male in contrast to sparsely punctate sternite two, sternites of female moderately punctate, those of both sexes broadly polished medially; sixth sternite of both sexes subangulate anteriorly, as long as preceding three sternites together, fifth sternite more constricted than fourth, but both shorter in middle than on lateral margin; ventral exposure of male hypopygium polished, transversely channeled, hind margin shallowly concave medially, convex laterally; dorsal rim relatively broad all around, least so pos- teriorly, most so laterally, in both of which sections it is distinctly but not abruptly basined; genital plates of female sparsely punctate, two-thirds as long as sixth sternite, longer than postventer, but little shorter on inner than on posterior margin, the latter distinctly oblique; inner apical angles prominent and slightly produced. Length 3.5- 4.5 mm. Type series Mexico, Salle, Hogberg, and other specimens from Honduras, Hjalmarson (Stockholm Museum); San Jose, Guatemala, Aug. 6, F. Knab; Quirigua, Guatemala, May 1919; Izabal, Guatemala, June 1919, S. F. Blake; San Salvador, Salvador, Aug. 15; Sonsonate, Salvador, Aug. 26, F. Knab; La Ceiba, Honduras, Aug. 2, 17, 19, 26, 1916; Tegucigalpa, Honduras, March 30, 31, 1917, F. J. Dyer; Ayutla, Guatemala, Aug. 2, 1923, E. G. Smyth; Vera Cruz, Mexico, April 10, Uhler Collection; Mexico, Baker Collection; Jalapa, Mexico (U. S. N. M.); Guatemala, Breddin Collection (Deutsches Ent. Inst.); Los McAtee & Malloch; Revision of the Thyreocorin^. 267 Amates, Guatemala, Kellerman (M, C. Z.); Frontera, Tabasco, Mexico, June 1897, C. H. T. Townsend (Knight); Vera Cruz, July 29, 1926 (Stettin Museum); Piedras Negras, Costa Rica, P. Schild; San Jose, Guatemala, November 1907, August, October, November, 1911, R. Paessler; Mexico, C. Hoge (Hamburg Museum); Los Amates, Guatemala, February 1905 (Iowa State College); British Honduras, Blancaneau (Dresden Museum, Paris Museum). 69. Galgupha (Gyrocnemis) reinhardti Jensen-Haarup. Euryscytus reinhardti Jensen-Haarup, A. C., Ent. Meddel., XVI, 1926, p. 48 [Brazil]. Form, puncturing and coloration as in quadrisignata, except that the general color of corium is reddish-brown, the costa basally, a poorly defined sub-basal and the subapical subcostal spot paler. Ventral exposure of male hypopygium almost impunctate, depressed over whole area bordering the large central emargination, posterior margin slightly sinuate each side (see Fig. 132), dorsal rim broad and nearly flat anteriorly, much broader at lateral angles, which are somewhat tumid on their outer portions, and distinctly though shal- lowly basined within, hind margin rather moderately sloping, broadly interrupted medianly. Length 3.2 mm. Holotype and paratype males, Bahia, Brazil, Galatea Expedition, J. T. Reinhardt (Copenhagen Museum); Merida, Venezuela, Briceno (U. S. N. M.). 70. Galgupha (Gyrocnemis) singularis sp. nov. Black, shining, with slight purplish reflections; corium (Fig. 46) pale, infuscated on inner side near base and apex, and on costa as described in key; pale yellowish spots on margins of segments large, but separated by dark at the incisures and by the thin dark carinate connexivum. Head narrowly rounded anteriorly produced less than length of eye beyond anterior transocular line; jugae nearly touching in front of tylus, vertex depressed anteriorly, copiously, if subobsoletely, punc- tured, except for narrow occipital area; punctures nearly obsolete over whole disk of pronotum, well marked on lateral portions; scutel- lum moderately punctate, nearly smooth on anterior disk; metapleurum punctate bordering ostiolar surface and from postero-lateral angle of latter to edge, lateral area rather broad anteriorly, impunctate; sternites moderately punctate, smoothish medianly; third to fourth shorter at middle than at lateral margins, and fourth to fifth decidedly constricted; sixth sternite produced and very narrowly rounded an- teriorly (Fig. no), longer than preceding sternites together; genital 268 Annals of the Carnegie Museum. plates two-thirds as long as sixth sternite, three times as long as postventer, inner margins as long as posterior, longitudinally wrinkled and punctate, the inner margins somewhat elevated, the inner angles distinctly produced, the posterior margins decidedly concave; sub-" genital plates narrowly semi-elliptical, finely punctate; ultimate tergite broadly convex medianly, distinctly concave laterally, the concavities being the ends of short trough-like depressions in upper surface (Fig. no). Length 4 mm. Holotype female, Perico to Embarcacion, Argentina, May 19, 1920, G. L. Harrington (U. S. N. M.). 71. Galgupha (Gyrocnemis) soror sp. nov. Black, corium yellowish with costal carina, punctures, an oblique blotch from middle of subcosta to posterior part of mesocorium, and an isolated patch on middle of mesocorium, black; parts adjacent to the black markings reddish-brown; clavus mostly black; beak, antennae, and tarsi stramineous. Vertex moderately deflexed, almost evenly rounded anteriorly (subtruncate medially), produced less than length of eye beyond an- terior transocular line, reflexed margin very low, moderately punctate except posteriorly, and the faintly transversely wrinkled tylus; punc- tures evident antero-laterally, and about ends of transverse impres- sion, subobsolete elsewhere, on pronotum; corium punctate except on subcostal area; scutellum copiously punctate, except on extreme an- terior disk; lateral area of metapleurum impunctate; sternites coarsely punctate, smoother medially, sixth extensively punctate; narrowly rounded anteriorly, about as long on median line as fifth, fourth, and third together, these latter only slightly constricted medially; genital plates a third as long as sixth sternite, about equal in length to post- venter, finely punctate, inner margins decidedly shorter than pos- terior, the latter concave, the plates slightly depressed discally, the inner posterior angles prominent. Length 4.5 mm. Holotype female, Mexico, 1883, Bilimek (Vienna Aluseum). 72. Galgupha (Gyrocnemis) tabida Stab C [orimelcena] tabida Stal, C., Rio Hemip., i, 1862, p. 9 [Brazil]. Eumetopia tabida, Lethierry, L.and Severin, G., Catalogue general des Hemipteres, I, Heteropteres, Pentatomidae, 1893, p. 13 [“Female of the preceding?’’ which was E. fissiceps Westwood. See p. 196]. Ochreous, punctures and the following parts brownish to blackish: irregular spots across occiput, pronotal callosities, a large triangular patch on anterior disk of scutellum, basal depressions and three sub- apical markings of scutellum, the lateral ones of which are elliptical and obliquely placed, and the median one sagittate with the anterior McAtee & Malloch: Revision of the Thyreocorin^. 269 prolongation slender, apical two segments of antennae, and two in- distinct annuli on third, lower surface of head about bases of antennae and beak, most of pleural surfaces, disk of venter, most of ovipositor, tibial spines, and tarsal claws. Vertex considerably shorter than broad between eyes, distinctly depressed all around behind anterior margin, coarsely punctate, except on extreme anterior and posterior margins; pronotum almost uniformly punctate, except for callosities; scutellum uniformly punc- tate, the punctures shallowest on anterior disk; lateral area of metapleu- rum broad, obliquely truncate anteriorly, punctate interiorly; ster- nites moderately punctate, smooth medially; the sixth less copiously punctate than the others, broadly rounded anteriorly, fifth to third sternites much shorter medially than laterally; genital plates almost impunctate, triangular, the inner margins elevated into a blunt- tipped, ovipositor-like protuberance, posterior margins almost trans- verse; subgenital plates fully exposed, sub-triangular, ventral exposure of ultimate tergite unusually ample, as long as genital plates. Length 5.5 mm. Holotype female, Brazil, F. Sahlberg (Stockholm Museum). 73. Galgupha (Gyrocnemis) texana sp. nov. Similar in color and sculpturing to punctifer, differing as noted in key; puncturing on disk of pronotum a little more pronounced and inclining to be rastrate; there is no calloused place at the position of the subcostal pale spot of punctifer. Length 4 mm. Holotype male. La Blanca, Texas, May 8, 1925 (U. S. N. M.). Additional material may show this to be a subspecies of punctifer. 74. Galgupha (Gyrocnemis) triconcava sp. nov. The description of concava applies to this species in all respects, except for genitalic details described in key; the ventral exposure of hypopygium is more extensively flattened; external genitalia of fe- male as in Fig. 107. Length 3. 5-4. 5 mm. Holotype male, allotype female, and paratypes, Sapucay, Paraguay, February, W. T. Foster; paratypes San Bernardino, Paraguay, K. Fiebrig (LF. S. N. M.); Chapada and Corumba, Brazil, throughout the year; Bom Fin, Bahia, Brazil, J. D. Haseman (Carnegie Museum); Chapada, Brazil, April (A. M. N. H.); Amazon River, and Sao Paulo, Brazil, Breddin Collection (Deutsches Ent. Inst.); Bolivia (Argentine Museum); Paraguay, Dec. 7, K. Fiebrig (Berlin Museum); Province del Sara, Bolivia, Steinbach (Stettin Museum); San Luis, Paraguay, and Argentina, Reimoser (Vienna Museum); Buenavista, 450 meters, Santa Cruz, Bolivia, H. Taeuber (Munich Museum). 270 Annals of the Carnegie Museum. 75. Galgupha (Gyrocnemis) unica sp. nov. ALneous-black, shining; basal corial patch ivory, other pale mark- ings of corium distributed as in occulta, brownish-yellow; semicircular, lateral abdominal spots, visible on segments three to six, also blotches on subgenital plates and on ventral exposure of ultimate tergite pale yellow; legs from knees stramineous; beak and antennae testaceous. Head produced about length of eye beyond anterior transocular line, front margin of head, slightly reflexed, almost evenly rounded between eyes; vertex coarsely punctate antero-laterally, nearly smooth medially and posteriorly; pronotum with the punctures almost evenly distributed, but only lightly impressed discally; scutellum moderately coarse-punctate on sides, more finely punctate on declivity, and al- most impunctate on anterior disk; mesocorium and veins punctate; lateral area of metapleurum broad anteriorly, punctate on inner half, which is tumid; sternites with scattered coarse punctures laterally, smoother discally; sixth quite narrowly rounded anteriorly, fifth and fourth distinctly constricted medially; genital plates punctate, about two-thirds as long as sixth sternite, one-third longer than postventer; inner margin three-fourths as long as posterior, the latter slightly concave, transverse in position. Length 4 mm. Ilolotype female, Santa Marta, Colombia, Dec. 26, 1910, J. W. Green (U. S. N. M.). Subgenus Ctenopoda subgen. nov. Principal characters: Corium of medium breadth, apically meso- corial vein traceable, exocorial vein furcate, the forks connate pos- teriorly (Fig. 48); fore tibia with a series of strong spines on postero- ventral surface, a number of which distally form a more or less comb- like structure (Fig. 137); hind tibia without carinate line posteriorly; vertex carinate-margined. Subgenotype, Galgupha ( Ctenopoda) castor sp. nov. Key to the Species. I. Vertex and pronotum chiefly dark; scutellum of male reaching apex of abdo- men; sixth sternite of male angulate anteriorly; hind margin of hypopygium shallowly emarginate almost from side to side (Fig. 142), with a slight secondary median emargination; dorsal rim as in Fig. 143; female genitalia as in Fig. 138 pollux sp. nov. Vertex and pronotum chiefly pale; scutellum of male not reaching apex of abdomen; sixth sternite of male subangulate; hind margin of hypopygium shallowly concave medially (Fig. 140) dorsal rim as in Fig. 141; female genitalia as in Fig. 139 castor sp. nov. McAtee & Malloch: Revision of the Thyreocorin^. 271 Systematic Arrangement of the Species: pollux; castor. 76. Galgupha (Ctenopoda) castor sp. nov. General color stramineous, punctures and the following areas, fuscous to black: tylus and nearby parts, triangle behind eye including ocellus, occiput, anterior disk of pronotum, three basal, three medial, and two apical blotches on scutellum, more or less diffused or con- nected, middle of costa, subapical spot on inner half of corium, ventral surface in general (except hind margin of head, lateral semi-circular spots on sternites three to six, and genitalia generally), femora, castane- ous, tibiae stramineous, spines black ; tarsi, beak, and antennae testaceous. Head produced more than twice length of eye beyond anterior transocular line, subtruncate and slightly up-curved anteriorly; en- tire upper surface with scattered coarse punctures and irregular smooth areas between, the latter largest in region of callosities (where also the punctures are finer), middle of pronotum, and anterior disk of scutel- lum; corium punctate only along veins posteriorly; lateral area of metapleurum slightly wrinkled, but not punctate; fore tibia of male as in Fig. 137; venter copiously punctate, smoother medially; sixth sternite subangulate anteriorly in male, naTrowly rounded in female, nearly as long as preceding sternites together all of which aVe moder- ately constricted medially; ventral exposure of male hypopygium (Fig. 140) large, densely punctate in middle posteriorly, sparsely punctate elsewhere; dorsal rim of about equal width all around anteriorly, nearly flat, punctate, much wider and more steeply slop- ing within lateral angles, hind wall high, most declivitous of all (Fig. 141); genital plates of female (Fig. 139), moderately punctate, about half as long as sixth sternite, the inner margins slightly elevated, inner posterior angles produced, posterior margins slightly convex laterally, concave near inner angles, subgenital plates almost entirely concealed, postventer reduced to a mere line medially. Length 4.25-4.75 mm. Holotype male, allotype female, and paratypes, Corumba, Brazil, April; paratype same locality, March (Carnegie Museum). 77. Galgupha (Ctenopoda) pollux sp. nov. Vertex, except anterior submargin, and pronotum, except lateral submargins and a chain of indistinct blotches across posterior disk, dark fuscous; a considerably darker species than castor, the scutellar dark markings larger and more confluent. Head less produced than in castor, only about one and one-half times length of eye beyond anterior transocular line, narrowly rounded and slightly upturned anteriorly; puncturing as in castor-, fore femoral comb less developed than in that species; fifth and fourth sternites more constricted medially, the former to about half its lateral length; ventral exposure of hypopygium (Fig. 142) large, sparsely punctate, the punctures somewhat more densely grouped in middle posteriorly; 272 Annals of the Carnegie Museum. dorsal rim (Fig. 143) broader anteriorly than laterally, the lunate anterior third is moderately sloping inwardly, the lateral angles are narrowed and shelf-like from being hollowed out beneath, the hind wall is thin, abruptly and greatly declivitous medially, and rather thickened laterally. Genital characters of female (Fig. 138) similar to those of castor. Length 3.5-4 mm. Holotype male. Corumba, Brazil, March (Carnegie Museum); allotype female, Paraguay, K. Fiebrig (Berlin Museum); paratype, lacking abdomen, Paraguay, 1900, Gosset (Paris Museum). The fore tibia in this species does not have the spines so densely grouped at apex of the postero-dorsal surface as in castor, but the armature is quite smiliar and distinct from that of any other species of the genus in the wide sense. Subgenus Trepocnemis subgen. nov. Principal characters-. Exocorial vein distinctly furcate, the branches connate apically; corium pointed apically (Fig. 50); hind tibia some- what flattened dorsally with longitudinal carinate line posteriorly and a sulcus between; lateral area of the metapleurum sparingly punctate interiorly. Subgenotype Galgupha {Trepocnemis) anomala sp. nov. 78. Galgupha (Trepocnemis) anomala sp. nov. Dull black; tarsi, beak, and antennae, testaceous. Head produced about twice length of eye beyond anterior transocular line, front margin low reflexed, narrowly rounded, subtruncate medi- ally; vertex coarsely punctate, except posteriorly; pronotum punctate throughout, coarsely so antero-laterally and about ends of transverse impression (where more or less rastrate), finely punctate elsewhere; scutellum copiously punctate except on anterior disk, which is subtly transversely wrinkled and subobsoletely punctate, declivity rather rastrate; corium as in Fig. 50; mesocorium and veins distinctly punc- tate; sternites numerously punctate, a little smoother medially; sixth . sternite of female subangulate anteriorly, about as long as the preced- ing two sternites together, fifth slightly and others scarcely, constricted medially; genital plates punctate, half as long as sixth sternite and about as long as postventer, inner margins two-thirds as long as pos- terior, the latter nearly straight and transverse. Length 3.5 mm. Holotype female. General Roca, Rio Negro, Argentina, Dec. 2, 1920, A. Wetmore (U. S. N. M.). Subgenus Orocoris subgen. nov. Principal characters-. Corium (Fig. 49) narrowed posteriorly, exo- corial vein distinctly furcate, the forks connate apically; mesocorial McAtee & Malloch: Revision of the Thyreocorin^. 273 vein as a series of distinct separated punctures for its whole length; hind tibia with longitudinal carinate line; anterior outline of head bluntly angulate each side of the tylus, head tumid beneath these angulations; fore tibia with an antero-dorsal series of closely placed black spinules (in addition to the usual pale bristles) on almost its entire length (Fig. 146); ocelli well behind posterior margins of eyes. Subgenotype Cydnoides arizonensis Van Duzee. 79. Galgupha (Orocoris) arizonensis Van Duzee. Cydnoides arizonensis Van Duzee, E. P., Ent. News, XXXIV, p. 304, December 1923 [Mt. Lemon, Arizona]. Shining black, beak, antennae, and tarsi fusco-testaceous. Head produced less than length of eye beyond anterior transocular line; front margin of vertex truncate anteriorly, angulate laterally as described in key, then sinuate to eyes; vertex coarsely, almost con- tigously punctate, except on narrow occipital strip; remainder of dor- sal surface copiously punctate, the punctures coarse and distinct laterally, and finer discally; punctures more or less rastrate in lateral portions of the rather conspicuous transverse impression of pronotum; lateral area of metapleurum impunctate; corium as in Fig. 49; ster- nites copiously punctate, smoother medially; fore tibia and femur as in Fig. 146; sixth sternite angulate anteriorly in male, fifth constricted medially to less than half its lateral length, others noticeably, but less constricted; ventral exposure of male hypopygium (Fig. 144), large, almost semi-circular, the margin raised all around, hind margin slightly reflexed, very shallowly biconcave; dorsal rim (Fig. 145) with the an- terior third of about uniform width, flat, much depressed below level of remaining portions, lateral angles broader, tumid, the hind margin thickened, elevated and except for two slight depressions, correspond- ing to the shallow concavities above noted, about on level with lateral angles; sixth sternite of female subangulate, preceding sternites only slightly constricted medially; genital plates about half as long as sixth sternite, and about equal in length to postventer, punctate, inner mar- gins distinctly shorter than posterior, a little tumid apically, posterior margins transverse in position but slightly concave, inner posterior angles more or less rounded off. Length 4-4.5 mm. Specimens examined are from Huachucha Mts., Arizona, Chas. F. A. Schaeffer (Brooklyn Museum); and same locality July 10-31, 1905, H. G. Barber (Barber Collection). Subgenus Acrotmetus Horvath. Acrotmeius Horvath, G., Ann. Mus. Nat. Hung., XVII, 1919, pp. 223-224 [type species Corimelcena major Breddin]. Principal characters: Corium truncate apically, but more narrowed than in Euryscytus for example, exocorial vein distinctly furcate, the 274 Annals of the Carnegie Museum. forks scarcely connate distally, mesocorial vein traceable posteriorly (Fig. 51); lateral area of metapleurum broad with a few rows of punc- tures bordering ostiolar surface; hind tibia with longitudinal carinate line; second antennal segment fully half as long as third; antero-dorsal row of spines about as long as those of postero-dorsal row on fore tibia. Subgenotype Tetyra schiilzii Fabricius, of which Corimelcena major Breddin is a synonym. Key to the Species. I. Pronotum and scutellum strongly transversely rugulose, the punctures copious, well marked, and chiefly rastrate; corium with a stramineous basal mark on costa which does not extend over cubitus crassa sp. nov. Pronotum and scutellum scarcely transversely rugulose, punctures not rastrate, subobsolete over considerable portions of the dorsum; corium black, or with a red or orange basal mark which extends well over cubitus 2 2. Corium entirely dark 4 Corium with a basal pale marking 3 3. Hind margin of male hypopygium (Fig. 147) almost transverse on median three-fourths; genital plates of female three-fourths as long on inner as on posterior margin; abdominal segments with pale lateral spots. schulzii Fabricius. Hind margin of male hypopygium (Fig. 148) broadly convex medially, con- cave each side; genital plates of female little more than one-half as long on inner as on posterior margin; abdomen usually without pale lateral spots. tucumanus Horvath. 4. Disk of scutellum more highly polished; genital plates of female about one- third as long as sixth sternite, less than one-half as long as wide, disk on same plane as inner and posterior margins brasilianus Jensen-Haarup. Disk of scutellum less highly polished, all but anterior disk distinctly punctate; genital plates of female about one-half as long as sixth sternite, disk depressed below inner and posterior margins 5 5. Vertex produced about twice length of eye beyond anterior transocular line; length 5.5 mm. or more grossa McAtee and Malloch. Vertex produced about length of eye beyond anterior transocular line; length 5 mm minuenda McAtee and Malloch. Systematic Arrangement of the Species. Corium with pale marking: schulzii, tucumanus, crassa. Corium without pale marking: grossa, minuenda, brasilianus. McAtee & Malloch: Revision of the ThyreocoriNvE. 275 8o. Galgupha (Acrotmetus) brasilianus Jensen-Haarup. Acrotmetus brasilianus Jensen-Haarup, A. C., Ent. Meddel., XVI, 1926, pp. 48-49 [Brazil], Piceous to black; antennae, tarsi, and beak usually testaceous, some- times more or less infuscated; faint yellowish lateral spots on sternites three to six. Head produced less than length of eye beyond anterior transocular line, narrowly rounded anteriorly, subtruncate medially; punctures scarcely deeply impressed, except on lateral portions of pronotum and scutellum, all discal parts polished, with the punctures nearly obsolete; corium only obsoletely punctate, except along veins; sternites numer- ously punctate, smoother medially; sixth sternite of male longer than preceding sternites together, subangulate anteriorly, each of sternites three to five also with a slight median anterior convexity, these ster- nites slightly constricted medially; ventral exposure of male hypo- pygium polished on anterior disk, sparsely punctate elsewhere, trans- versely channeled, hind margin varying from convex to slightly emarginate medially; dorsal rim broad, except posteriorly, basined, posterior margin with a depression in specimens having an emargina- tion; sixth sternite of female broadly subangulate anteriorly, as long as the preceding three sternites together, which are slightly constricted medially, convex in middle posteriorly; genital plates obsoletely punc- tate, scarcely as long as postventer, hind margin concave, inner pos- terior angles produced. Length 4.5 mm. Holotype female and allotype male, Lagoa Santa, Brazil, Reinhardt (Copenhagen Museum); other specimens from Chapada, Brazil, May, November (A. M. N. H.); April, November; Piedro Blanca, Bolivia, near Corumba, Brazil (Carnegie Museum); Bolivia (Argentine Mu- seum); Foz do Iguassu, March 19, 1923; Pinheirinhos, April 18, 1923, Parana, Brazil (Warsaw Museum); Brazil (Berlin Museum); Brazil, Schott (Vienna Museum); Hohenau, Paraguay, H. Taeuber (Munich Museum). 81. Galgupha (Acrotmetus) crassa sp. nov. Color fuscous to black, except for a narrow stramineous costal mark that does not extend inward beyond cubital vein (Fig. 51); there are faint indications of pale lateral abdominal spots in some specimens; beak, tarsi, and antennae testaceous. Head narrowly rounded anteriorly, produced about length of eye beyond anterior transocular line; vertex copiously and coarsely punc- tate, except on middle posteriorly, where even there are traces of punc- tures; punctures somewhat finer on anterior disk than laterally, on pronotum and scutellum, but still well-marked; corium as in Fig. 51, mesocorium and veins distinctly punctate; sternites numerously and 276 Annals of the Carnegie Museum. coarsely punctate, smoother medially; sixth sternite angulate anteriorly in both sexes, fifth and fourth only slightly constricted; ventral ex- posure of male hypopygium punctate, slightly channeled transversely, the posterior margin varying from concave to shallowly emarginate medially; dorsal rim broad anteriorly and laterally, basin trapezoidal, broadest anteriorly, posterior wall narrow, depressed medially; genital plates of female, punctate, half as long as sixth sternite, about as long as postventer, inner margins distinctly elevated, somewhat shorter than posterior, the latter transverse in position, but slightly concave. Length 5-5.5 mm. Holotype male, allotype and two other females, Chapada, Brazil, December (Carnegie Museum); paratype male, same date (A. M. N. H.). 82. Galgupha (Acrotmetus) grossa McAtee and Malloch. Galgupha {Acrotmetus) grossa McAtee, W. L., and Malloch, J. R., Ann. Mus. Pol. Z06I., VII, 1928, pp. 39-40 [Brazil, Guianah Black, costa more or less reddish at base; tarsi, beak, and basal three segments of antenna testaceous, apical two segments of antenna fuscous. Head narrowly rounded anteriorly, produced twice length of eye in front of anterior transocular line; vertex except smoother occipital strip, disk of pronotum, and anterior disk of scutellum with fine, subobsolete, punctures, lateral areas of pronotum and scutellum with coarser and more distinct punctures; corium punctate on anterior, but not on posterior half, except along veins; sternites moderately punctate, smoother medially, especially the sixth; sixth sternite of male subangulate anteriorly, the preceding sternites slightly constricted medially, ventral exposure of hypopygium nearly flat, punctate, hind margin nearly evenly convex as seen from below; dorsal rim gradually sloping interiorly from all sides, with rather conspicuous pale hairs; sixth sternite of female subangulate anteriorly, about thrice as long as genital plates, the latter punctate, about half as long on inner as on posterior margin, the disk in part lower than margins. Length 5. 5-6. 5 mm. Holotype female, allotype male, and paratypes, Salto Guayra, Rio Parana, Jan. 27, 1923, paratypes, same locality (in Parana, Brazil) Jan. 29 and Feb. 8, 1923 (Polish Museum); Cayenne, Noualhier, 1898 (Paris Museum). 83. Galgupha (Acrotmetus) minuenda McAtee and Malloch. Galgupha {Acrotmetus) minuenda McAtee, W. L., and Malloch, J. R., Ann. Mus. Pol. ZooL, VII, 1928, p. 40 [Brazil]. Black, tarsi, beak, and antennae testaceous, the latter two appendages somewhat infuscated. McAtee & Malloch: Revision of the Thyreocorin^. 277 * Head narrowly rounded, produced about the length of an eye be- yond anterior transocular line; distribution of puncturing about as in grossa, the whole dorsal surface, however, more or less alutaceous, not shining, as it is in most specimens of grossa. Sternites with scattered punctures, subobsolete medially; sixth sternite rounded anteriorly, the preceding ones but little constricted medially, genital plates about one-third as long as sixth sternite, punctate, inner margin less than half as long as posterior, the latter concave. Length 5 mm. Holotype female, Pinheirinhos, Parana, Brazil, April 16, 1923 (Polish Museum). 84. Galgupha (Acrotmetus) schulzii Fabricius. [Ciinex\ schulzii Fabricius, J. C., Species Insectorum exhibentes eorum differen- tias Specifica, Synonyma, Auctorum, Loca Natalia, Metamorphosin, adiectis Observationibus, Descriptionibus, II, 1781, p. 340 [Cayenne]. C[imex\ schulzii, Fabricius, J. C., Entomologica systematica, IV, 1794, p. 83 [Cayenne]. T[etyra\ schulzii, Fabricius, J, C., Systema Rhyngotorum, 1803, p. 143 [Cayenne]. T[hyreocoris] setiger Berg, C., Hemip. Argentina, 1879, p. 19 [Buenos Aires]. Corimelcena major Breddin, G., Neue Rhynchotenausbeute aus Siid-Amerika, Societas Entomologica, XIX, No. 7, July i, 1904, p. 49 [Brazil]. Acrotmetus sphceridioides Horvath, G., Ann. Mus. Nat. Hung., XVII, 1919, pp. 224-225 [Panama]. Black, usually with aeneous reflections, corial marking varying con- siderably in extent, yellowish to reddish (northern specimens having it decidedly longer on mesocorium, two-thirds as long as entire corium, than on costa, may be known as subspecies sphceridioides Horvath) ; yellowish to reddish lateral spots usually discernible on each of seg- ments three to six; tarsi testaecous, beak usually castaneous, antennae with the basal three segments usually paler than the apical second. Head produced more than length of eye beyond anterior transocular line, narrowly rounded anteriorly, more or less truncate medially; back of vertex, most of dorsum of pronotum, and anterior disk of scutellum with the punctures mostly obsolete, punctures on more lateral areas numerous but few of them deeply impressed; mesocorium and veins punctate; sternites coarsely punctate, smoother medially; sixth sternite angulate anteriorly in male, about as long as all preced- ing sternites together, third to sixth distinctly constricted medially; ventral exposure of hypopygium punctate, slightly channeled trans- versely, hind margin normally transverse medially for three-fourths of its width (Fig, 147), sometimes slightly sinuate; dorsal rim broad anteriorly and laterally, hind wall broad, depressed almost to level of central disk; sixth sternite of female rounded to subangulate an- teriorly, about as long as three preceding sternites together, which are only slightly constricted medially; genital plates punctate, nearly 278 Annals of the Carnegie Museum. half as long as sixth sternite, and slightly longer than postventer, inner posterior angles distinctly produced, hind margin oblique and slightly concave. Length 4.5-6 mm. Holotype and paratype males of schulzii Fabricius, Cayenne (Kiel Museum) have been examined, and also the type series of major Breddin, including both males and females from Espirito Santo, Brazil, Fruhstorfer (Deutsches Ent. Inst.); the type series of sphceridioides Horvath, Volcan de Chiriqui, 2-3000 ft., G. C. Champion (Budapest Museum) ; we have studied many others of this same lot in the British, the U. S. National, and other museums. We also place here specimens from the Argentine Museum labelled setiger Berg and agreeing in all respects with the original description of that species; these include some from Argentina without further data, and others more definitely labelled as, Misiones, March 7, 25, 1897; Buenos Aires, Nov. 2, 14, 15, 1896, S. Venturi. Schulzii evidently is one of the most common species of the sub- family and it is also widespread; it seems to occur throughout South America east of the Andes. The most northern localities we have for it are Colima and Tabasco, Mexico. 85. Galgupha (Acrotmetus) tucumanus Horvath. Acrotmetus tucumanus Horvath, G., Ann. Mus. Nat. Hung., XVII, 1919, p. 225 [Argentina], female. Acrotmetus persimilis Horvath, G., op. cit. pp. 225-226 [Brazil], male. Following is a comparative description with schulzii drawn from the female holotype. Black, corial marking reddish, half as long as corium, third antennal segment pale apically; tarsi pale. Head broader, more rounded anteriorly, and less truncate medially, and ocelli noticeably farther apart than in schulzii', lateral patch of coarse punctures on pronotum larger than in that species; sternites more copiously punctate than in schulzii, in which species they are smoothish medially, especially the sixth; the genital plates are de- cidedly more transverse than in schulzii, the posterior margins but little concave and scarcely oblique (both of which characteristics are distinct in schulzii), the inner angles but little produced pos- teriorly, and having only a small portion smooth (in schulzii they are much produced and have large smooth areas) ; the subgenital plates differ in the two species corresponding to the differing encroachment of the genital plates. Length 5.5 mm. The male is practically indistinguishable from schulzii, except for the undulation of hind margin of hypopygium (Fig. 148) mentioned in the key, and would have been placed as a variant of that species, had McAtee & Malloch: Revision of the Tiiyreocorin^.. 279 not specimens turned up collected at the same time and place with females, which are distinct from those of schulzii and which we believe are tuciimanus. The species has about the same range in size as schulzii. The corial marking varies from yellowish to reddish. The material examined includes the holotype female of tucumanus, Tucuman, Argentina, Jan. 1906, Arpad Vezenyi (Budapest Museum); the holotype and paratype males of persimilis (the paratype is schulzii), Cuyaba, Matto Grosso, Brazil (Budapest Museum); other males from Argentina, one of them from Buenos Aires, Nov. 2, 1896 (Argentine Museum); Chacras de Coria, Mendoza, Feb. ii, 1906, Jensen-Haarup (Collection Jensen-Haarup); and Rio Salado, Province of Santiago del Estero, Argentina, 1909, E. R. Wagner (Paris Museum). In the last listed lot both sexes are represented, and in them the pale color of the corium extends well beyond the petiole of the exo- corial vein, while in typical schulzii it ceases at or almost at the furcation. Subgenus Galgupha Amyot and Serville. Bibliographic reference as under the genus (p. 203). Principal characters: Corium pointed apically (Figs. 52 to 54), exocorial vein distinctly furcate, the branches connate apically; lateral area of metapleurum impunctate; hind tibia with a longitudinal carinate line; fore femur with several short stout antero-ventral bristles on apical half (Figs. 158, 159). Subgenotype Galgupha {Galgupha) atra Amyot and Serville. A group of uniformly black species, which is more strictly northern in distribution than any other in the genus, but one of the included species occurring south of the United States in Mexico. Several of the species are fairly common in the eastern United States, where they may be swept from low vegetation; no details of food-habits or trans- formations, however, are available. Key to the Species. 1. Antero-dorsal series of spines on fore tibia (Fig. 158) terminating distally in two decidedly weaker spines or bristles or a hiatus, when these have been lost; puncturing mostly obsolete on discal portions of pronotum and scutel- lum 2 Antero-dorsal armature of fore tibia (Fig. 159) usually almost uniformly spinose, without two distal ones bristle-like and rarely with subapical hiatus; puncturing more evident on discal portions of pronotum and scutellum .... 5 280 Annals of the Carnegie Museum. 2. Scutellum angulate apically (Fig. 153); dorsal rim of male hypopygium broad with three distinct depressions, one anteriorly and two postero-laterally; genital plates of female decidedly shorter on inner than on posterior margin. denudata Uhler. Scutellum normally broadly rounded apically; genitalia otherwise 3 3. Inner margin of genital plates of female distinctly shorter than the posterior, the latter but little oblique or concave monostira Horvath. Inner margins of genital plates of female almost as long as the posterior, the latter decidedly oblique and concave 4 4. Outline as seen from above noticeably more narrowly rounded posteriorly (Fig. 152) than anteriorly; dorsal rim of male hypopygium with a con- spicuous carinate elevation on each inner side anteriorly (Fig. 161). carinata sp. nov. Outline as seen from above scarcely more narrowly rounded posteriorly (Fig. 15 1) than anteriorly; dorsal rim of male hypopygium (Fig. 160) without carinae, broadly basin-like, the anterior margin medianly (usually) excepted. atra Amyot and Serville. 5. Branches of exocorial vein subparallel (Fig. 53) ; scutellum as viewed from side more abruptly declivate apically (Fig. 150) ; dorsal rim of male hypopygium basin-like, more extensively excavated interiorly 6 Branches of exocorial vein noticeably divergent (Fig. 54) ; scutellum as viewed from side usually rounded apically (Fig. 149); male hypopygium without fringe of hairs, dorsally with broad and flat rim all around, less extensively excavated interiorly ovalis Hussey. 6. Hind border of hypopygium as seen from below shallowly concave for most of its width (Fig. 154), dorsal rim narrow and abruptly declivate anteriorly, with unusually long hairs (when unrubbed) forming a conspicuous posterior fringe; sixth sternite of female nearly twice as long as genital plates. aterrima Malloch. Hind border of hypopygium abruptly concave at middle; dorsal rim broad and flat anteriorly, lacking long hairs hesperia sp. nov. Systematic Arrangement of the Species. Bracket i” of key: ovalis, aterrima, hesperia. Bracket i’ of key: monostira, atra, carinata, denudata. 86. Galgupha (Galgupha) aterrima Malloch. Galgupha aterrima Malloch, J. R., in Hart: C. A., Pentatomoidea of Illinois, Bui. 111. Nat. Hist. Survey, XHI, Art. 7, June 1919 [Illinois, Maryland] Black, shining, sometimes with aeneous reflections; tarsi, beak, and antennae testaceous. McAtee & Malloch; Revision of the Thyreocorin^. 281 Head produced somewhat more than length of eye beyond anterior transocular line, front margin truncate medially, nearly straight, or slightly sinuate between truncation and eye; vertex numerously and distinctly punctate, except on occipital strip; pronotum smooth on humeral prominences and posterior declivity, coarsely punctate an- tero-laterally, moderately punctate in transverse impression and lightly punctate elsewhere; scutellum (outline from side Fig. 150) numerously punctate, the punctures deepest in antero-lateral angles, shallowest on anterior disk; corium as in Fig. 53, mesocorium and veins punctate; sternites numerously punctate, smoother medially, sixth of male angu- late anteriorly, fifth distinctly constricted medially, fourth and third less so; ventral exposure of hypopygium short, punctate, transversely channeled, hind margin concave almost from side to side (Fig. 154); dorsal rim more than twice as broad at lateral angles as anteriorly, moderately sloping within former, abruptly declivate at the latter position; sixth sternite of female, in general, narrowly rounded an- teriorly, but more irregular than in any other species of the subfamily we have examined, varying from rounded to angulate medially, and being variously sinuate laterally. Genital plates distinctly punctate, somewhat more than half as long as sixth sternite, about as long as postventer, inner margins short, two-thirds as long as posterior, the latter slightly oblique and concave. Length 4-5 mm. Specimens are at hand from Canada, Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Maryland, South Carolina, Alabama, Mississippi, Louisiana, Oklahoma, Missouri, Illinois, Wisconsin, and Michigan. Through the kindness of Dr. T. H. Frison we have been able to re- examine the holotype from Illinois. 87. Galgupha (Galgupha) atra Amyot and Serville. Galgupha atra Amyot, C. J. B., and Serville, A., Hist. Nat. Ins. Hemip., 1843, p. 68 [Mexico; North America]. In a group of species so uniform in appearance as those of the sub- genus Galgupha, there is little to be gained by giving a detailed de- scription of each. In contrast to aterrima, atra is distinguished other- wise than as noted in key, by the head being produced less than length of eye beyond anterior transocular line; by the puncturing being even less evident than in that species on the discal portions of pronotum and scutellum, by its larger size on the average; and slightly more oblong outline (Fig. 151). The branches of the exocorial vein are not so nearly parallel (Fig. 52). Fore tibia as in Fig. 158. Sixth sternite of male bluntly subangulate anteriorly, preceding 282 Annals of the Carnegie Museum. sternites scarcely constricted medially; ventral exposure of hypo- pygium, large, punctate, slightly transversely channeled; hind margin convex (Fig. 155); dorsal rim (Fig. 160) broadest laterally with an abrupt, transversely oblong basin, hind wall steeply declivate; sixth sternite of female rounded anteriorly, preceding sternites scarcely constricted medially; genital plates punctate, more than half as long as sixth sternite, about as long as postventer, inner margins three- fourths as long as posterior, the latter oblique and concave. Length 4.5-6 mm. A specimen in the Signoret Collection (Vienna Museum) labelled “typus col. Serv., Amerika” in the absence of one of equal claims labelled Mexico, must be regarded as the type. Fortunately it appears to represent the species that has commonly been identified as atra. Specimens from the following political divisions have been examined: Mexico; Texas; Louisiana; Alabama; Florida; Georgia; North Caro- lina; Virginia; District of Columbia; Maryland; Pennsylvania; New York; Connecticut; Rhode Island; Massachusetts; Vermont; New Hampshire; Tennessee; Missouri; Iowa; Illinois; Wisconsin; Michigan; Ohio; Ontario; Kansas; South Dakota; Arizona; Colorado; Montana; and Washington. 88. Galgupha (Galgupha) carinata sp. nov. Referring back to the description of aterrima again, all that needs to be noted of carinata besides the points mentioned in the key is that, as in atra, the puncturing is less evident on disk or pronotum and scutel- lum; the head is produced less than length of eye beyond anterior transocular line, and the front margin varies from truncate medially and slightly sinuate laterally to almost evenly rounded; as in atra the average size is considerably larger than in aterrima. The branches of the exocorial vein are not so nearly parallel. Posterior outline of scutellum as in Fig. 152. The sternites have scattered coarse punctures laterally and are nearly smooth medially; the sixth of male is rounded subangulate anteriorly, and is about as long as the preceding three together, each of which is slightly constricted medially and has at the middle of an- terior margin a rounded subangulation similar to that of the sixth; ventral exposure of male hypopygium large, punctate, slightly trans- versely channeled, hind margin slightly concave medially, convex laterally (Fig. 156); dorsal rim of about uniform width from lateral angles anteriorly, depressed in middle anteriorly, with a conspicuous curved elevation on each side between anterior depression and lateral McAtee & Malloch: Revision of the Thyreocorin.t;. 283 angles (Fig. i6i); hind wall thin, steeply declivate; central basin large, abrupt, and trapezoidal in shape; internal genitalia of male as in Figs. 21-22; sixth sternite of female rounded anteriorly about as long as the preceding two sternites together, each of which is moder- ately constricted medially; genital plates of female, punctate, two- thirds as long as sixth sternite, slightly longer than postventer; inner margins nearly as long as posterior, the latter slightly concave and strongly oblique. Length 4.5-6 mm. Holotype male and allotype female, Louisiana, Baker Collection (U. S. N. M.); paratypes with the same data and also the following: Texas: Galveston Island, Uhler Collection; Brownsville, H. F. Wickham; Victoria, April 16, 1907, W. A. Hooker; March 24, 1913, July 15, 1907, July 16, 1911, J. D. Mitchell; April 16, 1908, May 16, 1907, C. E. Hood; June 22, 1906, W. E. Hinds; Beeville, June 5, 1906, C. R. Jones; Nov. 6, E. A. Schwarz; Gainesville, Jan. 12, 1922, in hibernation 5 Sept. 1923 on oats, E. E. Russell ; Dallas, May 5,11, 1906, on Sitilias grandiflora, W. D. Pierce; May 16, 1907, C. E. Hood; May 7, 1908, May 19, 1911, E. S. Tucker; April 24, 1908, on Lepidium, C. R. Jones and C. E. Hood; Cuero, April 25, 1907, R. A. Cushman; Goliad Co., July 22, 1915, on Amphiachyris dractmculoides, J. D. Mitchell; Paris, March 14, 1904, C. T. Brues; Corpus Christi, March 18, 1908, C. R. Jones and F. H. Pratt (U. S. N. M.); Dallas, Bollman; Galveston Island (M. C. Z.). Oklahoma: Kingfisher, Oct. 7, 1907 (U. S. N. M.). Louisiana: Opelousas, G. R. Pilate (U. S. N. M.); Tallulah, June 9-July 4, E. R. Kalmbach (Biol. Survey); Keatchie, June 14, 1905 (U. S. N. M.); Baker Collection (Acad. Nat. Sci. Phila.). Mississippi: Natchez, May 29, 1909, E. S. Tucker (U. S. N. M.). Alabama: Barachias, June 17, 1924, E. G. Holt (McAtee). Georgia: Uhler Collection (U. S. N. M.). Virginia: Mt. Vernon, June 19, 1906, D. H. Clemons (U. S. N. M.). Maryland: Plum Point, June 20, 1914, W. L. McAtee (McAtee); Lakeland, June 25, 1906, D. H. Clemons; near Plummers Island, June 29, 1913, R. C. Shannon; Marlboro, May 13, H. S. Barber (U. S. N. M.). Tennessee: Knoxville, April 19, 1889, June 6, 8, 1890, H. E. Summers (Iowa State College). The outline of abdomen, as seen from above, is noticeably more narrowed posteriorly than in aira, and in occasional specimens is sub- angulate as in denudata. 284 Annals of the Carnegie Museum. 89 Galgupha (Galgupha) denudata Uhler. ClorimelcBna] denudata Uhler, P. R., Proc. Ent. Soc. Phila., II, p. 157, Sept. 1863 [Louisiana]. This species agrees with atra and carinata in being less decidedly punctate above; in fact it is the most polished of the three, the punc- tures on vertex being quite shallow, and much larger areas on disk of pronotum and scutellum, being only faintly punctate. The head is produced about length of eye beyond anterior transocular line, and the front margin varies from truncate anteriorly and slightly sinuate laterally to nearly evenly rounded. The declivity of scutellum usually is faintly transversely wrinkled, but the scabrous area near tip, men- tioned in original description, is not a constant character. Posterior outline of scutellum as in Fig. 153. Venter numerously punctate laterally, smoother medially; sixth sternite of male subangulate anteriorly, preceding sternites but little constricted medially; ventral exposure of male hypopygium small, punctate, slightly channeled transversely, hind margin almost evenly low convex (sometimes slightly concave medially) ; dorsal rim broad and of about even moderate slope from lateral angles anteriorly, a little more depressed across each lateral angle and middle of anterior rim, hind wall narrow and more steeply declivate; internal genitalia of male as in Fig. 23; sixth sternite of female rounded subangulate anteriorly, longer than the preceding two sternites, but shorter than the preceding three sternites together, all of which are only slightly constricted medially; genital plates punctate, less than half as long as sixth sternite, about as long as postventer; inner margins decidedly shorter than posterior, the latter somewhat concave, but about trans- verse in position, inner posterior angles briefly but abruptly produced. Length 4-5.5 mm. Holotype male, Louisiana, Uhler Collection (U. S. N. M.) and other specimens from Mexico (Orizaba), Texas, Louisiana, Mississippi, Alabama, Florida, Georgia, South Carolina, Virginia, and the Dis- trict of Columbia. 90. Galgupha (Galgupha) hesperia sp. nov. Very much like aterrima, differing chiefly in genitalic characters. Head of female more broadly rounded; scutellum more abruptly de- clivate posteriorly than in aterrima] sixth sternite of male more rounded anteriorly; dorsal rim of hypopygium of about equal width and only moderately sloping from lateral angles anteriorly; hind wall narrower, more steeply declivate. Sixth sternite of female broadly rounded anteriorly, with traces of a median and two sublateral angulations, sternites five and four moderately constricted medially; genital plates, punctate, two-thirds as long as sixth sternite, longer than McAtee