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MONOGRAPHIA
PSELAPHIDARUM ET SCYDMANIDARUM
BRITANNIZ:
OR AN ESSAY ON THE BRITISH SPECIES
OF THE GENERA Pselaphus, of Herbst, and Scydmenus, of Latreille :
IN WHICH
THOSE GENERA ARE SUBDIVIDED, AND ALL THE SPECIES HITHERTO DISCOVERED IN GREAT BRITAIN ARE ACCURATELY DESCRIBED AND ARRANGED, WITH AN INDICATION OF THE SITUATIONS IN WHICH THEY ARE USUALLY FOUND:
EACH SPECIES ILLUSTRATED BY A HIGHLY MAGNIFIED FIGURE.
DYGHIENRY DENNY:
NORWICH:
PUBLISHED BY S. WILKIN, UPPPER HAYMARKET,
SOLD ALSO BY BURKS AND KINNEBROOK; MATCHETT AND STEVENSON; J. PARSONS; AND JOHN STACY, NORWICH: AND IN LONDON BY BALDWIN, CRADOCK, AND JOY, PATERNOSTER ROW;
AND W. WOOD, 428 STRAND.
1825.
Dr CHEE
4. WM LVCEM NR
+
E: ud
\
4 F ey £ 54 “1 §f ©
“Tih eL. D " en Fu
TO THE
REVOW.KIRBY, M.A. E.R.S. F.E.5.
Soc. Cas. Nat. CuRIos. Mosc. et Nar. ScRUT. BEROLIN. Soc.
5& REreREND Sin,
Indebted as I have been to you for innumerable instances of patronage, and personal favours, gratitude prompts me to acknowledge them in my first efforts to illustrate that science,
which you have so eminently contributed to improve and ad-
vance in England.
Accept, then, my warmest thanks for your kind attentions to me, and permit me respectfully to present this little work as a pledge of my remembrance of the continued favours which
you have conferred on your Obliged and humble servant,
HENRY DENNY.
Cy a &- NFL 4 »» |" x a "diia " i r ‘A Y. Kr .» «t y* " , d t "^ LE PN d! " ge je : ^ XT : TIE hA TUTTA 4 ox 5a HOD AM Wa: vot MEVS, & cP (nto es uy ia Maite d M : , iini CT vici
ice oa 73 ait ti
LIST OF SUBSCRIBERS.
»
————
E. Barron, Esq., St. Martin's at Palace, Norwich
A. Beevor, Esq., Honingham
E. T. Bennett, Esq., F.L.S. Edward Street, Portman Square, London
Mr. Bentley, Britannia Street, City Road
Mr. E. Bevan, Norwich
M. Bland, Esq., F.R.S. L.S. &c., 30 Montague Place, Russell Square, (2 copies)
T. Brightwell, Esq., F.L.S. Surrey Street, Norwich, (2 copies)
Mrs. Ives Brown, Upper Close, Norwich
Rev. J. Burrell, M.A. F.L.S. Letheringsett
Mr. R. J. Campbell, Bethel Street, Norwich
Rev. J. Carter, St. Giles’, Norwich
J. Chambers, Esq., Dean Square, Norwich
Miss Clayton, Chapel Field, Norwich
William Clear, Esq., Cork
'T. Cobbold, Esq., Catton
Mr. J. B. Crome, St. George's, Norwich
Mr. J. Curtis, F.L.S. 4 Grove Place, Lisson Grove, London
J. C. Dale, Esq., F.L.S. Glanvilles Wootton, Dorset
W. Dalrymple, Esq., Calvert Street, Norwich
G. Dominicus, Esq., East Farleigh, Kent, (2 copies)
C. Dubois, Esq., F.L.S., London
L. Evans, M.D., St. Giles’, Norwich
Rev. R. B. Francis, M.A., Edgefield
H. Francis, Esq., Surrey Street, Norwich
Daniel Gurney, Esq., Runcton
Hudson Gurney, Esq., M.P. St. James’ Square, Westminster
Joseph Gurney, Esq., Grove, Lakenham, (2 copies)
J. J. Gurney, Esq., Earlham, (2 copies)
Miss Gurney, Northrepps
R. Gean, Esq., Tentuden, Kent
Mrs. Ganning, Pottergate Street, Norwich
G. Harvey, Esq., Catton
G Harvey, Esq., Thorpe
H. Harvey Esq., Catton
J. Harvey, Esq., Thorpe
A. H. Haworth, Esq., F.L S. H.S. Queen's Elm, Chelsea
J. S. Henslow, Esq., M.A.F.L.S. Professor of Botany, St. John’s College, Cambridge
Mr. T. Hitchin, Noricich
Jeremiah Ives, Esq., M.A. F.R.S. A.S. L. & H.S. St. Catharine’s Hill, Norwich
Mrs. Ives, Catton
Mrs. T. Ives, King Street, Norwich
Rev. L. Jenyns, F.L.S. Bottisham Hall, Cambridgeshire
Mr. J. Juby, Bethel Street, Norwich
Rev. W. Kirby, M.A. F.R.S. L.S. &c. Barham, Suffolk (2 copies)
George Kett, Esq., Brooke Hall
Mrs. Kett, Seething
R. Latham, Esq., F.L. & H.S. Great Russell Street
W. Mac Leay, Esq., M.A. F.L.S. Queen’s Square, Westminster
E. Lombe, Esq., Melton
Miss Isabella Master, Catton
Norfolk and Norwich Literary Institution
Rev. G. Norris, Wood Norton
Mrs. Opie, St. Clement's, Norwich
E. Oxley, Esq., St. Augustine's, Norwich
J. Scales, Esq., Beachamwell
Rev. R. Sheppard, M.A. F.R. & L.S. Wrabness Parsonage, Suffolk
Rev. T. Skrimshire, Syderstone Parsonage
Mrs. Smith, Hoxne, Suffolk
Sir J. E. Smith, M.D. P.L.S, F.R.S. &c. Surrey Street, Norwich
Mr. G. Sothern, Market Place, Norwich
Mr. G. B. Sowerby, F.L.S. Regent Street, London
Mr. J. Sparshall, F.L.S. Magdalen Street, Norwich
J. F. Stephens, Esq., F.L.S. Leigh Street, Burton Crescent, London
R. Stone Esq., Beddingham Hall
Rev. C. Sutton, D.D. A.L.S. King Street, Norwich
Rev. S. Titlow, St. Gregory's, Norwich
C. Turner, Esq., Pottergate Street, Norwich
N. A. Vigors, Esq., F.L.S. Whitehead's Grove, Chelsea
Rev. W. Walford, Long Stratton
Mr. R. Wigham, Lower Close, Norwich
Mr. S. Wilkin, F.L.S. M.W.S. Upper Haymarket, Norwich, (3 copies)
Mrs. Wylde, St. Stephen’s, Norwich.
LREEFAGQGE.
In submitting the present work to the publick, the author hopes he is rendering a service not altogether unacceptable to the Entomologist of Great Britain; since the only distinct notice which has hitherto appeared in this country, of the minute, but interesting, tribes in question, is to be found in the Zoological Miscellany, a work far too voluminous and expensive for ama- teurs in general. The third volume of Dr. Leach's continuation of that work contains an enumera- tion of the British Pselaphide ; but this is with- out figures. Reichenbach has, indeed, published a tract on the Family (Monographia Pselaphida- rum) in which this deficiency is satisfactorily supplied; but his work is not easily to be obtained. Besides which, there are several species found in Great Britain, which he has not noticed : and the Scydmenide (a tribe which, though differing from the Pselaphide in the number of the joints of the palpi and tarsi, are yet closely allied to them) he altogether omits. The author hopes that these remarks will be sufficient to shew that the Pselaphide and Scydmenide, have not been hi- therto sufficiently illustrated. He was led to in- vestigate them rather by accident than by choice:
vi
but should it be objected that some more inter- esting tribe might have been selected, he may remark that however minute, these little beings are not without characters highly interesting to the admirer of nature: their remarkable palpi— the symmetry and neatness of their form—their polished armour, and singularity of appearance, are all sufficiently. calculated to please and to interest.
The author has gerat pleasure in offering his most grateful thanks to those gentlemen who have most liberally and kindly opened to him their cabinets, and allowed him to describe the species which were new to him. He is especially indebted to Rev. W. Kirby, r.r.s., J. F. Stephens, Esq. F.u.s., Rev. J. Burrell, r.r.s., N. A. Vigors, Esq. r.t.s., Rev. T. Skrimshire, A. H. Haworth, Esq. r.r.s. T. Brightwell, Esq. r.r.s., J. Spar- shall, Esq. r.r.s., Mr. G. Samouelle, 4.r.s., and Mr. R. Wigham.
He has only, in conclusion, to assure his friends that he has laboured to render this work as com- plete and as accurate as possible; and he ventures to intimate that should it be approved he may at some future time be induced to attempt the
illustration of some other minute tribes.
PSELAPHID.E.
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FAMILY I.
PSELAPHIDZE.
EssENTIAL CHARACTER. MaxirLLARy Parrr elongated; with three or five joints; the last joint much the largest. MANDIBULZ acute. Eyes granulated and prominent.
ErvrRA abbreviated, and covering only half the ab-
domen.
Tarst with three joints; claw single.
NATURAL CHARACTER.
Patri four, unequal.
MaxirrLARY Patri large and elongated, with three or five jomts; the first at the base very small; the second long, slender, and gradually clavated; the third about the same length, and clavated at both ends; fourth small,
and nearly oval; fifth very long, and clavated ; the clava
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pyriform, or with the first joint long and clavated ; the second short and angular; the last large, and either ovate or securiform.
LapiaL Parrr very short, with two joints; the first at the base cylindrical and truncated, with two sete, the second smaller, curved, and pointed ; inserted widely apart.
LaBrvM membranaceous; nearly cordate; truncated before and behind.
LicvrA membranaceous and small; nearly quadrate ; front a little emarginated ; anterior angles rounded.
LazsnRuM transverse and horny; the anterior angles rounded; base having the sides a little excavated and truncated.
MaxirLA membranaceous and bifid; the apex curved, and either rounded and flat, or produced to a point; the anterior edge strongly ciliate.
ManpisuL® horny, arched, and acute; the exterior margin thickish; the anterior with two sharp teeth; the base much dilated and roundish.
ANTENN# large and pubescent; inserted in the an- terior part of the head; about as long as the head and thorax, with eleven articulations; the first long and cylindrical: the second much smaller; the following six still smaller, nearly equal, and either oblong or glo- bose; ninth and tenth still larger, and somewhat angu- lar; rounded or lengthened; the last very large, and
either oval, ovate, or acuminated.
[2] o
Eyes large, prominent, and composed of many spheres, conglomerated similar to a raspberry.
Heap porrected, and nearly triangular or quadrate ; convex; the anterior part produced and bilobed; the lobes bearing the antenna.
Tuorax either subcordate, subovate, or subcylindri- cal; convex and tuncate.
ErvrRA abbreviated, and either subtriangular or sub- quadrate; depressed or convex; a little elevated at the shoulder, and scutellum ; the declivity at the apex in some very great, with one or more strie; the exterior margin inflexed.
Wines whitish and clear; longer and wider than the body; complicate and closely hid under the elytra; the nervures slender.
ScuTELLUM very small; elongated; the base widest ; the apex either round or acute.
ABDOMEN either depressed or convex; elongated or contracted and round; the margin at the sides of the three first segments reflexed ; apex obtuse or nearly acute.
Lees formed for running.
Tuicus long and gradually clavated.
Trsrm long and slender ; rather thicker at the apex ; curved and compressed.
Tarst with three joints; the first short; the second elongated, with its apex rather dilated; the third fili-
form, with one claw.
4 SEXES, male generally the smallest, with the antennae thickish ; the antennz of the female slender. TRANSFORMATIONS unknown.
Foop, mites in damp situations.
SYNOPSIS SPECIERUM.
PSELAPHIDZE.
SriRPS 1. Corpus elongatum, depressum.
Genus I. EUPLECTUS K.
1. RgrcnEeNBACHi. E. obscure piceo-fuscus, nitidus, latus, depressus, subpubescens: capite medio lzvi, ele- vato, antice punctis duobus impressis confluentibus, fo- veola occipitali; elytris, striatis striis basin versus valde impressis.
2. SANGUINEUs. E. elongatus, castaneo-fuscus, pu- bescens: capite antice foveolis duabus confluentibus ; thorace antice foveola unica, postice tribus lineola unitis,
3. Karstenu. E. depressus, lzvissimus, subpubes- cens, leviter castaneus: capite latissimo, punctatissimo ; thorace fere obcordato, postice trifoveolato.
4. SicNaTUs. E. elongatus, depressus, pubescens, ferrugineus: capite antice linea transversa impressa, fo- veolisque duabus inter oculos.
5. Kinan. E. valde elongatus et depressus, rufo-cas- taneus: thorace antice et postice angustato, antice fove- ola unica oblonga, postice tribus linea impressa unitis.
6. Pusttivs. E. levissime punctulatus, pubescens, niger, nitidus: thorace rotundato, subdepresso, postice
6 foveolis tribus linea impressa arcuata transversa unitis ; antennis tenuissimis.
7. Bicotor. E. piceo-niger, nitidus: thorace magno, rotundato, leviter punctulato, postice foveolis tribus, in- termedia majori.
8. Brevicornis. E. leviter pubescens, nitidus, casta- neus: antennis thoracis longitudine, articulo ultimo max- imo ; thorace elongato, postice foveolis tribus linea trans- versa arcuata unitis.
STiRPS 2. Corpus breve, convexum.
Genus Il. BYTHINUS.
1. Curtis. B. nitidus, dense pubescens, punctatus, castaneo-fuscus, vel fere hepatico colore: antennis mas culis articulo secundo spherico, prominentia interna.
2. SEcuRIGER. D. piceo-fuscus: antennis masculis articulo secundo securiformi; thorace punctato, nitido ; antennis pedibusque intense ferrugineis.
3. Burretu. — DB. piceo-fuscus, antennis masculis articulo secundo maximo angulato ex lunato subquadrato, antennis pedibusque ferrugineis.
Genus III. ARCOPAGUS.
1. BursirEn. A. niger, nitidus, pubescens: palpis pallide ferrugineis ; antennis clavatis; pedibus piceo-rufis ; elytris impresse punctatis.
2. CLAVICORNIs. <A. piceo-castaneus; thorace ca- pite latiori, antice et postice lzevi angustato; femoribus crassiusculis.
3. PuwcrICOLLIs. A. piceo-ferrugineus, punctatus, nitidus: thorace maximo, antice dilatato, punctatissimo ; femoribus femineis crassissimis.
4. GraBRICOLLIs. A. obscure ferrugineus: thorace
- ‘
capite longiori, obcordato, levi; antice et postice angus- tato, postice lineola transversa arcuata.
Genus IV. TYCHUS.
1. Nicer. T. niger, pubescens: antennis testaceis, pubescentibus; thorace levi, antice angustato; elytris impresse striatis,
Genus V. BRYAXIS.
1. Loxerconw:s. B. valde elongatus, nitidus, niger: elytris rufis; thorace postice foveolis tribus lineola trans- versa impressa arcuata unitis; antennis longissimis, tenu- issimis; tibiis anticis emarginatis.
2. SANGUINEUS. D. niger, nitidus, obtusus, brevis: thorace postice foveolis tribus linea arcuata transversa impressa unitis; elytris rufis; antennis articulo ultimo obtusiusculo.
3. IuPnEssus. B. niger: elytris obscure rufis, thorace nitido, foveolis tribus, intermedio minori; antennis artic- ulo extimo magno obtuso.
4. FossuraTUs. D. levis, pubescens, nigro-castaneus: palpis testaceis ; thorace foveolis tribus zequalibus.
5. HixMaTICUs. — B. vivide castaneus: thorace obcor- dato, foveolis tribus, intermedia minori.
6. Juncorum. B. brevis, subrotundus, leviter pu- bescens, ferrugineus: thorace subrotundato, punctula- tissimo; foveola magna utrinque, et alia intermedia pos- tica minutissima.
7. NicnurvgNTRIS. B. intense ferrugineo-rufus: ab- domine nigro; thorace spherico, canaliculato; elytris unistriatis.
Genus VI. PSELAPHUS.
1. HznssrIr.. P. nigro-castaneus, subpubescens: tho-
8
race elongato, subcylindrico, levi, nitido; abdomine tri- angulari.
2. Heisn. — P.elongatus, nigro-castaneus, nitidus: thorace antice et postice angustato, medio valde dilatato; femoribus crassis.
3. Loneicoiiis. P. nigro-castaneus, nitidus: thorace subovali; postice lineolis duabus arcuatis puncto centrali concatenatis.
4. Drespensis. P. piceo-niger, pubescens: thorace angulato, postice lineola impressa arcuata.
Genus I. EUPLECTUS.
SYNONYMS.
Euplectus; Kirey :—Pselaphus, fam, iii; RercHEN BACH.
GENERIC CHARACTER.
Antenne thickish: the first and second joints large; the third, fourth, fifth, sixth, seventh, and eighth, much smaller and of an equal size; the ninth and tenth larger; the cleventh the largest and ovate or oval. Mawillary Palpi nearly as long as the head: the first joint long and gradually clavated; second shorter and nearly triangular; third very large and ovate, with its apex a little acuminated. Body elongated and depressed.
Species 1. Euplectus Reichenbachu.
Plate i, fig. 1.
SPECIFIC CHARACTER.
Pitchy brown, and shining ; broad and depressed ; finely pubescent. Head elevated in the centre and smooth, with two converging depressions in front, and a foveola in the back part. Elytra with two strie very deeply impressed towards the base.
SYNONYMS. Euplectus Reichenbachii. Leach, Zool. Misc. vol. iii, p. 82, spec. 1. ——— — Staphylinoides. Kirby, MSS. Pselaphus Nanus. Reichenbach, Monog. p. 69, tab. ii, f. 20. Mus. Dom. Schueppel.
DESCRIPTION.
Hrzap nearly quadrate, the anterior part with two converging depressions, joined in front; the centre ele- vated and smooth, with a foveola at the base.
ANTENN4 testaceous and pubescent, about as long
C
10
as the head and thorax; the first and second joints long and thick, the six following shorter and nearly globular, ninth and tenth a little lengthened, the last large and obtuse.
Patri pale testaceous, about as long as the head.
Eyes black, prominent, and granulated.
Tuorax rather wider than the head, and cordate, convex and shining, with a few hairs; the anterior part very much narrowed, with an oblong foveola in the cen- tre, and three at the base; the centre one triangular, and those at the side round.
Exytra as long as the head and thorax, and rather wider, elongated, quadrate, depressed, shining, and finely pubescent; with two deeply impressed lines on each, one line next the suture, the other near the outer margin.
AppomeN long and rather depressed ; the segments nearly equal in size; the first, second, and third, next the Elytra, with the margin reflexed; the apex nearly acute, smooth and shining.
Lees pale testaceous yellow, shining, pubescent, short and thick.
Leneru scarcely one line.
Haszrrar, stable muck on cucumber beds.
This species, although in most of the principal cabin- ets in the kingdom, is very rare; the first specimen I was able to examine, was sent to me by my kind and much respected friend, the Rev. W. Kirby, F. L. S., Rector of Barham in Suffolk, who captured it in that neighbourhood. It has also been taken in Norfolk, by the Rey. Thos. Skrimshire of South Creak, who favour- ed me with a specimen, now in my possession: and by
Mr. J. Curtis, F. L. S., of London.
Species 2. Euplectus Sanguineus. Plate i, fig. 2.
SPECIFIC CHARACTER. Elongated, chesnut brown, and pubescent. Head with two converg- ing depressions, joined in front.
11
DESCRIPTION.
Heap nearly quadrate, and shining, with two depres- zed lines joined in front, forming an angle, each termi- nating in a puncture at the base; the centre very much elevated and smooth, sides and base thickly punctured.
ANTENN/ testaceous and pubescent, about the length of the head and thorax; the first, second, and three last joints the largest, apex obtuse.
Patri pale testaceous, shining, and pubescent.
Eyes black, prominent, and granulated.
Tuorax about the width of the head, cordate, convex, smooth, and shining; the anterior part with an oblong foveola in the centre, the base with three foveole joined by a semicircular impressed line.
ErvrRA elongated, quadrate, smooth, shining, and finely pubescent; with a stria on each side of the suture, and one half the length from the base, at which part they are very much dilated and impressed.
ABDOMEN elongated and convex, smooth, shining, and finely pubescent; the first three joints with the margin reflexed ; apex ovate.
Leas pale ferruginous, pubescent, and slender.
Leneru about three quarters of a line.
Hasirat, stable muck on cucumber beds.
I could never ascertain who first gave this insect the specific name of Sanguineus. Y have retained it, although I cannot see in what respect it agrees with the colour, which is a chesnut brown. The first specimens I ever saw of this species were kindly sent me by the Rev. T. Skrimshire of South Creak, in Norfolk, who captures it by placing pieces of boards upon his cucumber beds, which he examines at noon in sunny weather ; the insect is then found adhering to the under sides of the boards; which, from lying upon the stable muck, must naturally have derived a great degree of heat. He informs me that he has seen them greedily devour the mites, found so abundantly in those situations. I found a single spe-
cimen in May, 1823; but June, July, and August, I
12
believe, are the best months for finding this species. 1t is rather singular that this and the following species (viz. Karstenii) should differ so widely from all the others of the Family in their habitat, these two preferring warmth, while the others seem to delight in cold, moist situations, such as moss in damp woods, and at the roots of trees, on marshes.
Species 3. Euplectus Karstenii.
Plate i, fig. 3.
SPECIFIC CHARACTER. Light chesnut, very smooth, finely pubescent, and depressed. Head
very wide, and thickly punctured. Thorax nearly cordate, with three foveole at the base.
SYNONYMS. Pselaphus Karstenii. Reichenbach, Monog. p. 71, tab. ii, fig. 21. Mus. Hoffmansegg. Euplectus Castaneus. Leach, MSS. ? Staphylinus Sanguineus. Panz. Faun. Germ. 11, 9.
——-——
DESCRIPTION.
Heap large, wide, and obtuse, depressed, and thickly punctured, with two angular impressions in front.
ANTENN# pale chesnut and pubescent, not quite so long as the head and thorax; the last joint very large and obtuse.
Patri pale testaceous yellow, the length of the head, and finely pubescent.
Eyes black, granulated, and prominent.
Tuorax rather longer than the head, thickly punc- tured, nearly cordate, the anterior part with an abbrevi- ated longitudinal line in the centre, the base very much contracted, with three foveolz, the centre one the largest.
ErvrRa nearly quadrate, depressed, smooth, and finely pubescent, with a line on each side of the suture, and a slender depression at each shoulder.
15
ABDOMEN depressed, smooth, shining, and finely pu- bescent; the three first segments with the margin reflex- ed, and a slender depression at the base of each; apex nearly acute.
Lees pale chesnut, and finely pubescent; tibi; thick ; tarsi slender. ij
Leneru rather more than half a line.
Hasirat, stable muck on cucumber beds.
This species is found in society with the £. Sangui- neus, by the Rev. T. Skrimshire, to whom I am indebted for specimens of it. I have seen it in most cabinets Castaneus, and am inclined to suppose, from having ob- served it under this name in the British Museum, that it may probably be a manuscript name of Dr. Leach's. I have adopted Reichenbach’s name of Karstenii, as the insect agrees with his figure and description.
Species 4. Euplectus Signatus.
Plate i, fig. 4.
Speciric CHARACTER. Ferruginous, elongated, depressed, and pubescent ; the head with a transverse impressed line in front, and two foveole between the eyes.
SYNONYMS. Pselaphus Signatus. Reichenbach, Monog. p. 73, tab ii, fig. 22. Euplectus Unicolor. Kirby, MSS.
DESCRIPTION.
Heap nearly quadrate, and depressed; shining and smooth; the front with a transverse impressed line, and two foveola between the eyes.
ANTENN® ferruginous, and slightly pubescent, about the length of the head and thorax, and clavated; the last joint nearly cordate, with its apex acute.
Parrr pale ferruginous, and shining.
Evzs black, small, and granulated.
14
Tuonax nearly round, smooth, and shining; the an- terior part with a single foveola in the centre; the pos- terior part, or base, a little narrowed, with three foveolz, joined by a semicircular line; very much depressed at the sides.
ErvrRA ferruginous, shining, smooth, and pubescent; about half the length of the abdomen, and depressed ; with a line on each side of the suture, and a depression at the shoulder.
ABDOMEN elongated, smooth, shining, and finely pu- bescent ; the first three joints with the margin reflexed ; apex nearly acute.
Lees pale ferruginous, shining, finely pubescent, and slender.
LENGTH not quite one line.
HanBrirAT,
I know of only a pair of this insect, which are in the valuable cabinet of the Rev. Wm. Kirby, and were cap- tured by him near Barham, some few years since. I have no hesitation in pronouncing this to be the Psela- phus Signatus of Reichenbach, as it agrees with his description in every respect, except that he does not mention the foveole at the base of the thorax being joined by a semicircular line. This insect when first taken is finely pubescent, but I conclude that it is very easily deprived of that appearance, from observing that the specimens from which I made my drawings were in many places quite free from hair.
Species 5. Euplectus Kirbii.
Plate ii, fig. 1.
SPECIFIC CHARACTER. Dark red chesnut, very much elongated and depressed. Thorax nar- rowed before and behind.
SYNONYM.
Euplectus Kirbii. Leach, MSS.
15 DESCRIPTION.
Heap nearly quadrate, elevated, and smooth, with two converging depressions in front; chesnut-coloured and shining.
ANTENNA about the length. of the head and thorax, of a very pale chesnut colour, and thickly pubescent.
Patri nearly as long as the head.
Eyes granulated and black.
Tuorax dark chesnut and shining; nearly cordate, with an oblong foveola in front, and three at the base, joined by an impressed line. z
Exyrra dark red chesnut, shining, pubescent, and ra- ther depressed ; about half the length of the abdomen; with a line on each side of the suture, and one from the base, about half way down.
AsDoMEN elongated and depressed; the first three joints nearly equal in size; the margin reflexed ; apex nearly acute, smooth and shining.
Lees pale ferruginous, finely pubescent, and slender.
LeneTH one line.
HaBrTAT,
I have never seen but one specimen of this insect, which is in the cabinet of the British Museum. This is a much more elongated and depressed insect than Hu- plectus Sanguineus, which it resembles very nearly. It will readily be perceived that the name by which Dr. Leach has designated this species is in honour of one of the most illustrious Entomologists of the age, and to whom the science is very greatly indebted for the valu- able works which he has produced, all of which show the indefatigable zeal and profound judgment of the author.
Species 6. Euplectus Pusillus.
Plate ii, fig. 2.
SrECIFIC CHARACTER. Black and shining, finely punctured and pubescent. Thorax rotun- dated, and rather depressed; the posterior part with three
16
Joveole, joined transversely by a semicircular impressed. line. Antenne very slender.
SYNONYMS.
Euplectus Pusillus. Leach, MSS. ? Tenuicornis. Kirby, MSS.
DESCRIPTION.
Heap nearly triangular, shining, and finely punctured ; the anterior part with two oblong depressions, forming an angle, and terminating in two punctures between the eyes.
ANTENNA light chesnut, with the apex much darker; about as long as the head and thorax; thickly pubescent and slender; the first joint cylindrical, second larger, following six minute, ninth and tenth enlarged, eleventh the largest and nearly acuminated.
Parrr obscure chesnut, and pubescent; not so long as the head.
Eyes granulated and black.
Tuorax pitchy black, rotundated, punctured, and ra- ther depressed; the posterior part ‘with three foveole, joined transversely by a semicircular impressed line.
ErvrRA quadrate, thickly punctured, pubescent, and shining; with a line on each side of the suture, and two small depressions at the shoulders.
ABDOMEN elongated, punctured, and pubescent; the segments nearly equal in size; the first three with the margin reflexed, the last nearly acute.
Lecs obscure liver colour, slender, and pubescent.
Lenetu about three quarters of a line.
HasitTat, moss in woods, and on marshes.
I find this species pretty plentiful at Horning and Woodbastwick, in Norfolk, in the months of October, November, and December. It agrees, in some respects, with the Pselaphus Ambiguus of Reichenbach, but I should think it is distinct, because it differs in the sculp- ture of the thorax, as well as in colour.
17
Species 7. Euplectus Bicolor.
Plate ii, fig. 3.
SPECIFIC CHARACTER. Pitchy black. Thorax large and rotundated, the posterior part nar- rowed, with three foveole, the centre one rather the largest.
SYNONYM.
Euplectus bicolor. Kirby, MSS.
DESCRIPTION.
Heap cordate, pitchy black, and shining; with two deeply impressed punctures between the eyes.
ANTENN obscure chesnut, about the length of the head and thorax ; the first, second, and last three joints the largest; apex nearly acute.
Parr: pale, ferruginous, and pubescent.
Eyes large, finely granulated, and black.
Tuorax pitchy black, large and rotundated; the pos- terior part emarginated, with three foveole, the centre one rather the largest, the side ones situated in a deeply impressed and finely punctured line.
ErvTRa pitchy black and shining, nearly quadrate ; with a few very fine punctures, a line down each side of the suture, and another half the length, deeply impress- ed, from the base.
ABDOMEN pitchy black and shining; the first segment the largest, and following two with the margin reflexed ; apex obtuse.
Lees obscure chesnut; thighs thickish; tibi; slender; tarsi paler.
Lenertu about three quarters of a line.
Hapirat,
I have never seen this species in any other cabinets than those of the Rev. Wm. Kirby, F.L.S., of Bar- ham, (who kindly favoured me with the specimens from which the present figure was taken); and J. F. Stephens, Esq., F.L.S., of London, who possesses a single speci-
men: I therefore consider it as one of our rarest species. D
18
l am not aware that it is even known upon the conti- nent, having never seen either figure or description of it in any work. I have never been able to learn in what situation it was found, but probably its habitat is much the same as that of other species.
Species 8. Euplectus Brevicornis.
Plate ii, fig. 4.
SPECIFIC CHARACTER.
Chesnut, shining, and finely pubescent. The antenne about the length of the thorax, and pubescent ; the last joint very large. Thorax elongated, with three foveole, joined by a semicircular line at the base.
SYNONYMS. .
Pselap. Brevicornis. Reichenbach, Monog. Pselap. p. 47, t. i, f. 10. — ———— Mus. Dom. Schueppel. Euplectus Kunzii. — Leach, MSS.
DESCRIPTION.
Heap rotundated and shining; with two converging depressions in front, each ending in a puncture.
ANTENN pale testaceous and pubescent; about the length of the thorax; with the first and second joints a little enlarged, the last very large and ovate, with its base truncated and its apex acute.
Patrt pale, testaceous, and finely pubescent, not quite so long as the head.
Evrs small, granulated, and black.
THorax obscure chesnut, shining, smooth, and finely pubescent, oblong; oval towards the head, narrower and truncate at the base, with three foveole, joined by a semicircular impressed line, the centre one the largest and in the form of a half circle.
ErvrRA obscure chesnut, shining, smooth, and pu- bescent, nearly triangular; with a line down each side of the suture, and another from the base half the length.
AxspomMEN elongate-oval, convex, smooth, shining, and
19
finely pubescent; apex obtuse; the first three segments the largest, with the margin reflexed ; in the centre of the first at the base are two depressed lines.
Lees much paler than the body; thighs thick; tarsi about half the length of the tibia, still paler, and slender.
LENcrTH from the apex of the antennz to the apex of the abdomen about three quarters of a line.
Hasirat, the same as the other species.
This species is extremely rare in Britain. I know of only four specimens; (besides that in my own cabinet, which belongs now to the Norwich Museum: ) one of these is in the British Museum, three in the cabinets of the following gentlemen: the Rev. J. Burrell, F.L.S., of Letheringsett, in Norfolk, (to whom I was indebted for my specimen); N. A. Vigors, Esq., F.L.S., of White- head's Grove, Chelsea; and Mr. J. Sparshall, F.L.S., of Norwich: this last is in a very fine state of preserva- tion, and much darker than the preceding. I suspect this insect is very easily deprived of its pubescent ap- pearance, as four out of the five specimens which I have examined were nearly divested of hair.
Genus II. BYTHINUS. |
SYNONYMS.
Bythinus; Leacn :— Pselaphus, fam. ii; REICHENBACH.
GENERIC CHARACTER.
Antenne clavated ; the second joint from the base, in the male, in- ternally produced and very large; the third, fourth, fifth, sixth, seventh, and eighth, much smaller; ninth and tenth much wider; eleventh, the largest, with its apex acute. Maz- lary Palpi having the first joint filiform, with its apex gradu- ally clavated; second much smaller; third very large, flat, and hatchet-shaped.
Species 1. Bythinus Curtisit.
Plate iii, fig. 1.
SPECIFIC CHARACTER.
Dark chesnut brown, inclining to a liver colour, shining, punctured, and thickly pubescent. Second joint of the Antenne, in the male, globular, with a protuberance on the internal side.
SYNONYMS.
Bythinus Curtisii. Leach, Zoolog. Mise. vol. iii, p. 83. Pselaphus Binodis. Kirby, MSS.
DESCRIPTION.
Heap elongated and triangular, smooth, shining, and finely pubescent; the anterior part with a large excava- tion; the base with two foveolz between the eyes, and a longitudinal impressed line in the centre.
ANTENN# about as long as the head and thorax, of a ferruginous yellow, and thickly pubescent.
21 Patri twice as long as the head; the last joint very much elongated and flat; finely pubescent and testaceous.
Eyes prominent, granulated, and black.
Tuorax dark chesnut brown, cordate and convex; finely punctured, pubescent and shining; longer and wider than the head; the anterior part much the largest, and rotundated; the base narrowed, with an impressed semicircular line.
Exyrra wider than the thorax, thickly punctured, pubescent and shining; with a line down each side of the suture, impressed very deep at the base.
ABDOMEN not quite so long as the elytra, punctured and shining; with its margin a little reflexed.
Lees testaceous brown; thighs thickish; tibia and tarsi slender and pubescent.
Lenern from the apex of the abdomen to the apex of the antennze, not quite one line.
Hapirat, moss at the roots of trees.
This species was, I believe, first discovered in Norfolk by Mr. J. Curtis, F.L.S., of London, well known to the scientific world for his abilities as an artist. It has since been taken by the Rev. F. W. Hope, F.L.S., at Netley, near Shrewsbury, who kindly favoured me with the spe- cimen from which my drawing was made.
om ; Ny: Species 2. Bythinus Securiger.
Plate iii, fig. 2.
SPECIFIC CHARACTER.
Pitchy brown. Thorax punctured and shining. Second joint of the
antenne, in the male, securiform ; antenne and legs bright fer- ruginous.
SYNONYMS. Bythinus Securiger. Leach, Zool. Misc. vol. iii, p. 83. Pselaphus Securiger. Reichenb. Monog. p. 25, tab. i, fig. 9.
Pselap. Grandipalpus. Kirby, MSS.
OO
ivi DESCRIPTION.
Heap subtriangular, deeply punctured and shining, with two foveole between the eyes.
ANTENN# ferruginous and pubescent ; rather longer than the head and thorax ; the first joint long and cylin- drical; second exactly C and large in the male; the following six much smaller; the three last much the largest.
Patri pale, ferruginous; not quite so long as the an- tennze ; the last joint very large and securiform.
[yes prominent, granulated, and black.
Tuorax longer than the head and rather wider; the anterior part much the largest and rotundated, deeply punctured and shining; the posterior part with a semi- circular impressed line.
ErvTRAa pitch-coloured, longer and wider than the head and thorax, thickly punctured, shining, and finely pubescent; suture a little elevated, with an impressed line on each side; the shoulder very much elevated.
ABDOMEN pitchy black and shining; the first two joints with the margin reflexed.
Lees ferruginous; thighs thickish; tibiz and tarsi slender.
Leneru nearly three quarters of a line.
HaBrTAT, moss at the roots of trees in woods.
For a figure of this very rare species, I am indebted to the Rev. Wm. Kirby, who captured a specimen of the male some few years since, which is the only male I have had an opportunity of examining; there are two females in London, one in the rich and valuable cabinet of J. F. Stephens, Esq., the other in the British Museum.
Species 3. Bythinus Burrelli.
Plate iv, fig. 1.
SPECIFIC CHARACTER. Pitchy black, punctured, and shining. The second joint of the
antenne of the male very large, somewhat lunulate and flat ; antenne and legs pale ferruginous.
23 DESCRIPTION.
Heap subtriangular, finely punctured, and shining; with a depression z across the front; two foveole between the eyes, and another in the anterior part somewhat oblong.
ANTENN® pale ferruginous, shining, and pubescent; the second joint in the male nearly lunulate, very flat towards the concave edge, much thicker at the convex or exterior edge, and somewhat truncated at its apex; the succeeding joints gradually increasing in size towards the extremity; the last ver y large and ovate.
Parrr pale ferruginous yellow, pubescent, very much resembling those of the preceding species.
Eyes black, granulated, and shining.
Tuorax pitchy black, shining, and finely punctured ; the anterior part the largest ; the base with a transverse line, terminating at each "end i in a puncture.
ErvrRa thickly punctured, finely pubescent, shining and convex.
ABDOMEN pitchy black, shining and pubescent; the first segment with the margin reflexed ; apex obtuse.
Lees pale ferruginous, and rather slender.
LExcTH about three quarters of a line.
HanrrAT,
The genus Bythinus, when first established by Dr. Leach, contained only two species (/ Curtisii and Securi- ger;) a third was discovered in the latter part of April, 1824, near Letheringsett in Norfolk, by the Rev. J. Burrell, who obligingly sent me specimens of it. I have therefore named it in honour of that gentleman. At first view it very much resembles B. Secwriger; but the singular form of the second joint of the antenne clearly distinguishes it from that species. "The females of this as well as of the other species of the genus are smaller than the males ; but invariably the reverse is observed in in all the other genera of the family.
Genus III. ARCOPAGUS.
SYNONYMS.
Arcopagus; LEAcH :— Pselaphus, fam. ii; REICHENBACH.
GENERIC CHARACTER.
Antenne as long as the head and thorax ; the first joint large; in the male cylindrical, in the female internally dilated; the se- cond smaller and nearly globular; the six following smaller and nearly equal; ninth and tenth larger and wider; eleventh still larger, ovate, and acute. — Maaillary Palpi nearly as long as the antennze; the first joint filiform and long, with its apex abruptly clavated; second elongate; third very large and nearly securiform.
Species 1. Arcopagus Bulbifer. Su el
SPECIFIC CHARACTER.
Black, shining, and pubescent. Antenne clavated. Palpi pale fer- ruginous. Legs dark chesnut. Elytra strongly punctured.
SYNONYMS. Arcopagus Bulbifer. Leach, Zool. Mise. vol. iii, p. 84. Pselaphus Bulbifer. Reichenbach, Monog. Psel. p. 37, tab. i, f. 6. D isnoeh:et Dahl MSS Klugii. olim, in Mus. Hellwig. Bostrichus Anomalus, Schrank, Donaumorr, brief. viii, p. 136.
DESCRIPTION.
Heap nearly triangular, black and shining; the an- terior part produced and depressed; with two large punctures between the eyes.
ANTENN# pale, ferruginous, and pubescent; the length of the head and thorax; the first joint in
25
the female very large; the last ovate; base truncated.
Paxpi nearly twice the length of the head; pale ferruginous, and pubescent; the last joint large and securiform.
Eyes black, prominent, and granulated.
Tuorax shining and finely pubescent; rather longer and wider than the head, and rotundated ; base a little contracted, with a transverse impressed line, terminat- ing at each end in a puncture.
Exyrra thickly punctured, shining and pubescent, broader than the thorax, and convex; the base with four depressions, and a line on each side of the suture, entire; apex dilated.
ABDOMEN oval and black, pubescent and shining; the margin a little reflexed
Legs dull chesnut and shining; the thighs a little thick- ened; tibia slender and compressed ; tarsi much paler.
LENGTH not quite a line.
HaBrTAT, moss in woods, and on marshes.
This species is by far the most plentiful in Norfolk. One hundred specimens might be taken in a single day, merely by examining moss, collected towards the latter end of the year. This insect varies exceedingly in size, some being nearly twice the size of others.
Species 2. Arcopagus Clavicornis.
Plate v, fig. 2.
SPECIFIC CHARACTER. Dark chesnut, and larger than any others of the genus. Thorax wider than the head; the anterior part large; the posterior part contracted. Thighs rather thich.
SYNONYMS. Arcopagus Clavicornis. Leach, Zool. Misc. vol. iii, p. 84. Pselaphus —— Reichenbach, Mon. Psel. p.40, tab. i, f. 7. Panzer, Faun. Germ. H. 99, no. 3 — -—-Antennarius. Mus. Hoffmansegg et Schueppel. E
26 DESCRIPTION.
Heap nearly triangular and smooth, and deeply im- pressed in the centre, with two foveole between the eyes.
ANTENN# dark chesnut and pubescent ; not quite so long as the head and thorax; the first, second, and last joints very large; the second nearly quadrate; the last with its base truncated.
Patri pale ferruginous, and finely pubescent; nearly as long as the antenne.
Eyes black, prominent, and granulated.
Tuorax dark chesnut, wider than the head; the an- terior part the largest, and rounded ; the base contracted and slightly punctured, with an impressed line.
Eryrtra pitch coloured and shining; very thickly punctured toward the posterior part, and pubescent ; much wider than the thorax, with a line on each side of the suture, and one at the shoulder, deeply impressed.
ADBDOMEN pitchy black and shining; the segments nearly equal in size, and finely pubescent.
Lees testaceous and shining; thighs thickish; tibiz slightly curved and compressed ; tarsi yellow.
Lernertu rather more than one line.
Hapirat, the same as the other species.
This is certainly the rarest species of the genus. I never saw it in any cabinet but that of the British Mu- seum, in which there are a pair, one of which was taken at Swansea, by Mr. Millard, the other at Falmouth, by Mr. Prideaux; this is clearly distinguished from all the others of the genus, by being nearly twice the size.
Species 3. Arcopagus Puncticollis.
Plate v, fig. 3.
SPECIFIC CHARACTER.
Dark ferruginous, punctured, and shining. Thorax very large ; dilated in front, and thickly punctured. Thighs very thick in the female.
- wl
DESCRIPTION.
Heap triangular, rather short, and thickly punctured ; deeply depressed in front, with two large foveole be- tween the eyes.
ANTENN# ferruginoüs and pubescent; not quite so long as the head and thorax; the last joint very large, and rather acuminate.
Patri pale yellow brown, and pubescent.
Eyes black, prominent, and granulated.
Tuorax obscure, ferruginous, but paler than the body, thickly punctured, and pubescent ; much wider than the head in front, and having the base very much narrowed, with an impressed line terminating in a puncture at each end.
Exytra dark ferruginous, punctured, pubescent, and shining, wider than the thorax, and rather longer than the head and thorax, with four excavations at the base, and a line on each side of the suture, entire.
AxspomeEN large, the segments equal in size; the first three with the margin slightly reflexed.
Lecs pale ferruginous yellow, and pubescent ; thighs very thick in the female; tibiae short and compressed ; tarsi slender.
Lenertu from three quarters to one line.
HaniTAT, moss in damp situations.
Of this species, which is new to Britain, I have caught several specimens, at Horning, where I first discovered it, in 1822, as a Norfolk species. I believe it stands in some cabinets as the Clavicornis, which I, at first, sup- posed it to be, until I saw the difference by comparing it with the Museum specimens; the male is considerably smaller than the female; the thighs are also much slen- derer. There are some varieties of a plain ferruginous brown; but they are found most frequent with the thorax much paler than the elytra ; this species is next in size to Clavicornis.
28
Species 4. Arcopagus Glabricollis. 1 Plate v, fig.24.
SPECIFIC CHARACTER. Obscure ferruginous. Thorax longer than the head, cordate, and smooth; the anterior and posterior parts narrowed, the latter with a transverse line. :
SYNONYMS. Arcopagus Glabricollis. Leach, Zool. Misc. vol. iii, p. 83. spec. }. Pselaphus — — Reich. Monog. p. 43, tab. i, fig. 8.
DESCRIPTION.
Heap triangular and smooth; the anterior part pro- duced and bifid; the base with two punctures between the eyes.
ANTENN& ferruginous and pubescent, the length of the head and thorax; the first joint very large in the female; the second smaller and round; the last ovate, with its base rounded.
Parrr pale ferruginous yellow, half the length of the antennz, and pubescent.
Eyes black, prominent, and granulated.
Tuonax cordate, smooth, and shining, about the width of the head, and a little longer; the anterior and posterior parts narrowed, the latter with a transverse line.
Exytra ferruginous, punctured, and shining, as long as the head and thorax, and a little wider; with a line on each side of the suture, and a depression at the shoulder.
ABDOMEN oblong, convex, shining, and pubescent ; the margin slightly reflexed.
Ls pale ferruginous, and slender ; tarsi pale yellow.
Leneru about three quarters of a line.
Hasirar the same as the preceding.
This Insect is easily distinguished from any of the others, by the size and more elongated and slender form; it is not so common as Bulbifer, but is by no means rare in Norfolk; itis found varying from a bright ferruginous
29 to a pitch colour. Glabricollis, the name by which both Reichenbach and Dr. Leach have designated this species, I think not very applicable; as, from the term, it might be supposed the thorax of the insect is perfectly free from hairs; but such is not the case; a few fine hairs are scattered over its surface.
Genus IV. TYCHUS.
SYNONYMS.
Tychus; Leacn :— Pselaphus, fam.ii; RercHEN BACH.
GENERIC CHARACTER.
Antenne with the first joint long, thick, rather curved, and cylin- drical; the second somewhat smaller; the third, fourth, fifth, sixth, seventh, and eighth, much smaller; the fifth joint, in the male, large and very conspicuous ; ninth and tenth, very much truncated; eleventh very large, with its apex acute. Palpi longer than the head, with the first joint filiform, the second oblong and angulated, the third very large and securi- form ; body depressed.
Species 1. Tychus Niger. '
Plate vi, fig. 1.
SPECIFIC CHARACTER. Black and pubescent. Thorax smooth and narrowed in front. An- tenne testaceous and pubescent. — Elytra deeply striated.
SYNONYMS.
Tychus Niger. Leach, Zool. Mise. vol. iii, p. 84. Pselaphus Niger. — Reich. Monog. Pselap. p. 35, t. i, fig. 5, ($ Kirby, MSS.
A Paykul, Faun. suec. iii, p. 365, no. 4. ———Nodicornis. Beck. in litt.
P ——-Ruficornis. Dahl. in litt.
— ———Detritus. et Congener. Nees. ab Esenbeck. in litt.
DESCRIPTION.
Miran nearly triangular, smooth, convex, and shining. ANTENNA testaceous and hairy, about half the length
bl
of the body and thick; the last three joints the largest; the apex acute. -
Patri longer than the head, of a pale yellowish brown, and pubescent.
Evzs black, prominent, and granulated.
Tuorax black, smooth, and shining; the anterior part much the narrowest, the base rounded.
Exyrra black and shining, subquadrate, convex, and pubescent, rather more than half the length of the ab- domen; a little depressed at the base, with a longitudinal line at the suture.
ABDOMEN black, shining, and pubescent; the first segment the largest, with the margin reflexed, the rest growing gradually smaller, the apex nearly acute.
Lees ferruginous and slender; thighs thickish, tibia and tarsi slender.
LeneTu scarcely one line.
Hasirat, moss in dry woods and clayey situations.
In some instances, though rarely, the elytra of this insect vary in colour from black to a red brown. The male has the fifth joint of the antenne enlarged; the antenne of the female grow gradually thicker towards the apex. It is found in London, Bristol, Norfolk, and many other parts of the Kingdom; and is by no means an uncommon species. The drawing was taken from a specimen in the cabinet of the Rev. J. Burrell, which was the first I examined. I have since taken several. The moss, in which it is most frequently found, is the Hypnum Triquetrum; but Richenbach mentions its being found at the root of the oak.
Genus V. BRYAXIS.
SYNONYMS.
Bryavis ; IKNocn :—Pselaphus, fam. iii; KREICHENBACH.
—
GENERIC CHARACTER.
Antenne long and gradually clavated; the first, second, ninth, tenth, and eleventh, joints the largest; the third, fourth, fifth, sixth, seventh, and eighth, smaller, of nearly equal size, and slen- der. Palpi short and thick; with the first joint very abruptly clavated; the second large, and a little angulated ; the third ovate, with its apex acute.
Species 1. Bryaxis Longicornis. Plate vii, fig. 2:
SPECIFIC CHARACTER.
Body black, shining, and much elongated. Elytra bright red. Tho- rax with three foveole joined by a semicircular impressed line. Antenne very long and slender. Anterior tibie notched.
?
SYNONYMS. Bryaxis Longicornis. Leach, Zoolog. Misc. vol. iii, p. 85. Pselaphus Foveolatus. Kirby, MSS.
DESCRIPTION.
Heap black and shining; nearly quadrate, with three foveole deeply impressed, and forming an angle.
ANTENNZ# of a dusky liver colour, and pubescent, more than half the length of the body ; the first joint long and cylindrical ; second a little enlarged ; third and fourth shorter; fifth much longer than the three preceding; sixth, seventh, and eighth, growing gradually shorter ;
22 vo
ninth, tenth, and eleventh, much the largest, and cylin- drical; apex nearly acute.
Parr: light chesnut brown, and pubescent ; the first joint abruptly clavated ; second angular, with the exte- rior angle rounded ; third very large and acute.
EyEs prominent, granulated, and black.
Tuorax black, shining, and smooth; larger than the head; narrowed before and behind ; the base with three foveola joined transversely by a semicircular impressed line, the centre one very much in the form of an angle.
Exyrra bright red, shining, and smooth, with a black band across the apex, very finely pubescent, about half the length of the abdomen; with a line down each side of the suture, and an arcuated line from the base.
AxpomeEN black and shining; the first segment much the largest, with two depressed lines in the centre; each segment having a brown tinge towards the extremity, with the margin reflexed.
Lees chesnut-brown, long, and slender; the anterior tibiz notched, with a small spine, and a row of fine hairs down the internal edge; tarsi paler and pubescent.
LrNcrTH about one line and three quarters.
Hasirat, moss in damp woods, and rushes.
This species very much resembles Bryaxis Sanguineus at first sight; and has, indeed, by many persons, been considered the female of that species. But, after exami- ning them very closely, I think I may venture to pro- nounce them distinct. Dr. Leach was, I believe, the first who divided them as species; his division was from the length of the antenne, which is certainly a very strik- ing characteristick; but I am not aware that any one has ever noticed the notch in the anterior tibice, which I think is another distinguishing character, as well as the general formation of the insect; the size of the notch
«varies very much in different specimens. This species is also subject to great change of colour. I have one which was taken by Mr. D. Bydder, in Epping
Forest, and is entirely of a pale ferruginous brown. F
94 I haye beaten it from off aquatic plants, in the summer
months; butits most common habitat is moss in damp woods.
Species 2. Bryaxis Sanguineus. Plate vii, fig. 3.
SPECIFIC CHARACTER. Body black and shining, rather short and obtuse. Elytra red. Tho-
rag black, with three foveole, joined by a semicircular impressed line. Antenne with the last joint nearly obtuse.
SYNONYMS. Bryaxis Sanguineus. Leach, Zool. MSS. vol. iii, p. 85, spec. 2. Pselaphus Sanguineus. Reich. Monog. Pselap. p. 49, tab. ii, fig. 11. e iiliger) KatPreass- "m poo Paykul, Faun. Suec. iii, p. 363. ————Mueronatus. Panzer, Faun. Germ. H. Ixxxix, no. 10. ———————— ——— Panzer, Krit. Revis. Bd. i, p. 62. — — — Paykullii. Gyllenhall, MSS. Anthicus Sanguineus. Fab. Syst. Eleuth. i, p. 293, no. 22. Staphylinus Sanguineus. Linn. Syst.Nat. xiii, Gm. i, iv, p. 2029, n. 19. ————— — —— Linn. Act. Ups. 1736, p. 15, no. 12. — — —— Linn. Faun. Suec. ed. I, Holm. 1746, p.194, no. 612.
ed. II, Stockh. 1761, p. 232, no. 853. Paykul, Monog. Staphyl. p. 39, no. 29. Oliv. Ins. xlii, tab. 6, fig. 54, (teste Illigero Fabricio et Sturmio) ———— Ross. Faun. Etrusc. ed. Hellw. Mant. p: 444, no. 223.
DESCRIPTION.
Heap black, shining, smooth, and nearly quadrate; with an impressed foveola on each side, between the eyes, and a third in front.
ANTENN;E dusky liver colour and pubescent; the
35
first eight joints nearly equal and cylindrical; the last three largest, with the apex nearly obtuse.
Parr pale chesnut brown, and pubescent; the last joint much the largest, and nearly acute.
Eyes prominent, granulated, and black.
Tuorax black, shining, and smooth, a little wider, and longer than the head; anterior part rounded ; base rather contracted, with three foveolz, joined by a semi- circular impressed line.
Exyrra red, smooth, and shining, rather more than half the length of the abdomen; with two longitudinal lines on each, one in the centre, the other at the su- ture; the basal margin and the suture of a dusky brown, inclining to black.
AsDpowEN gibbous, black, shining, and very finely pubescent; the first segment the largest, with two im- pressed lines in the centre, the margin a little reflexed ; apex nearly obtuse.
Lees pitchy brown and finely pubescent, long, slen- der, and rather compressed ; tarsi pale chesnut colour.
LrxcrTz about one line and a quarter.
Hasirat, the same as the preceding species.
This speciesis the Staphylinus Sanguineus of Linneus, Olivier, and Paykul; but for what reason they placed it in that family is very difficult to determine, unless from the similarity of their habitats, as their forms do not agree in any one respect. It is true they are found in society with numbers of the smaller Staphyliande, which perhaps might unite them in some degree; ne- vertheless, the tars?, and the general form of the insect, would clearly point it out as belonging to a distinct family. This species is very common in many parts of Norfolk. It is subject to great variation of colour in the Elytra, from a bright red to nearly a black.
36
Species 3. Bryaxis Impressus.
Plate vii, fig. 4.
SPECIFIC CHARACTER.
Body black. Elytra obscure red. Thorax black and shining, with three foveole. The centre one the smallest. Antenne with the aper obtuse.
SYNONYMS.
Bryaxis Impressus. — Leach, Zool. Misc. vol. iii, p. 86, spec. 3. Pselaphus Impressus. Reichenbach, Monog. p. 58, tab. ii, fig. 15. a ee Pyne LR Cian IE SS), ina, LO) ——-— Krit. Revis. i, p. 62. ——-——Tripunctatus. Kirby, MSS.
DESCRIPTION.
Heap black, shining, and nearly quadrate; with a large foveola in front, and two smaller between the eyes.
ANTENN;E pitchy and obscure, thickly pubescent, about half the length of the body; the first, second, and last three joints the largest, the apex nearly obtuse.
Papi testaceous and finely pubescent; about the length of the head.
Eyes black, prominent, and granulated.
Tuorax black, smooth, very finely pubescent, and nearly globular, a little longer and wider than the head; the base with three round foveole, the centre one the smallest.
ErvrRA obscure red, finely pubescent, and shining, wider than the thorax, and nearly quadrate, with a line on each side of the suture, and one in the centre of each elytron, beginning at the depressed points at the base; the suture and margin much darker, and nearly black.
ABDOMEN black, shining, and smooth; finely pubes- cent ; oval and very obtuse ; the margin a little reflexed.
LEcGs pitchy brown and slender; tibize compressed ; tarsi much paler.
LENGTH one line.
HasrrAT, moss on marshes, and at the stumps of trees in damp woods.
or o (f
This insect is of much rarer occurrence than the two preceding species, and is also subject to great variation in colour. The prevailing colour is much duller than either Bryaxis Longicornis or Sanguineus ; but I have seen specimens of as bright a red as either of these; and some nearly black. This species is very easily distin- guished from Sanguineus, by the three foveolze on the base of the thorax not being united by a line; also by the Antenne being more obtuse, and the insect
altogether smaller.
Species 4. Bryaxis Fossulatus.
Plate viii, fig: i.
SPECIFIC CHARACTER.
Pitch-coloured, pubescent, and smooth. Palpi testaceous. Thorax with three foveole of an equal size.
SYNONYMS. Bryaxis l'ossulatus. Leach, Zool. Misc. vol. iii, p. 86, spec. 4. - Tripunctata. Koch. in litt. teste Meg. a Muehlfeld. Pselaphus Fossulatus. Reichenbach, Monog. Psel. p.54, tab. ii, f. 13. --—— Cruentatus. Knoch. in litt.
——--—— Fuscipes. Dahl. in litt. —— Pratensis:
es \ Schueppel. Mus. ——--—— Tripunctatus.
——--—— Ruficornis. Kirby, MSS.
DESCRIPTION.
Heap pitchy and shining; obtusely triangular and depressed in front, with two foveolz between the eyes.
ANTENN# rather paler than the body, and pubescent; about the length of the head and thorax; the last joint nearly oval.
Parr: as long asthe head; testaceous and pubescent.
Eyes prominent, granulated, and black.
Tuorax pitchy and shining; smooth and finely pu-
99
bescent; longer and wider than the head; rotundated ; the base truncated, with three large foveole of an equal size.
Exytra obscure pitch-colour; shining, smooth, and pubescent; nearly quadrate; wider than the thorax, and about half the length of the abdomen, with a de- pressed curved line from the base of each, and another down each side of the suture.
ABDOMEN shining, smooth, pubescent, and obtuse, with a reflexed margin; the first segment next the ely- tra the largest, with two depressed lines at the base, in the centre of which is a row of yellowish hairs.
Lees much paler than the body; slender, and finely pubescent.
Lenertu rather more than one line.
HasrraT, moss in damp situations, and sandy places.
This species is found in various parts of England, but it is by no means a common insect. I have never found it in any other situation than in moss on the stumps of trees; but my kind friend, Mr. G. Samouelle of London, the author of the Entomologist’s Compendium, (a work which has contributed greatly to the advancement of Entomology in Britain), informs me that he has taken it in sandy places, near Bexley. I have a bright ferruginous variety of this insect, which is rare, as the prevailing co- lour is a dark pitchy brown. It was named Ruficornis by the Rev. Wm. Kirby, from the colour of its antenne, which are much brighter in recent specimens, than in those preserved in cabinets.
Species 9. Bryaxis Hematicus. Plate viii, fig. 2.
SPECIFIC CHARACTER.
Bright chesnut. Thorax obcordate, with three foveole at the base, the centre one the smallest.
39
SYNONYMS. Bryaxis Hematicus. Leach, vol. iii, p. 86, spec. 5. Zool. Mise. Pselaphus ———— Reich. Monog. p. 52, spec. 12, tab. ii, f. 12. —— Rubellus. Mus. Dom. Schueppel. ——-—— Sanguineus. Mus. Hübnerrianum, Dr. Germar.
DESCRIPTION.
Heap nearly triangular; convex and shining; rather elevated in the centre, with three punctures; the largest in front, between the antennz, the other two between the eyes.
ANTENN# pale chesnut and pubescent; not quite half the length of the body; the last joint nearly ovate.
Patri pale yellow and finely pubescent; about the length of the head.
Eyes black, prominent, and granulated.
Tuorax obcordate; rather longer and wider than the head; convex and shining, with a few punctures ; the base with three foveolz, the centre one rather the smallest.
Exyrra nearly quadrate, convex, and finely pubes- cent; suture a little elevated, with a line on each side, and another from the shoulder, deeply impressed at the base.
ABDOMEN gibbous, smooth, and shining; the first segment much the largest, and elevated, with two im- pressed lines in the centre, and the margin reflexed ; the following jomts much smaller, with the apex nearly obtuse.
Lees obscure chesnut; thighs thickish; tibi; com- pressed and slender; tarsi paler.
Lenertu rather more than a line.
HaBrTAT, moss on marshes, and in damp woods.
The true Hematicus is very rare in Britain. The Juncorum is frequently mistaken for this species. But the former is clearly distinguished from the latter, by its form and diminutive size, as well as by the head and thorax being thickly punctured; and the centre foveola at the base of the thorax being excessively small. Some Entomologists, again, have considered them as
40
male and female of the same species; but this seems very improbable, since a dozen specimens of the Jun- corum may be taken in the same situation, where not a single Hematicus can be discovered; whereas, in all the other genera of the family, the sexes are observed to occupy, in nearly equal proportions, the same habitat. I am obliged to T. Brightwell, Esq., F.L.S., of Norwich, for the loan of the specimen from which my drawing was made. ‘This insect is also in the cabinets of the British Museum; J. F. Stephens, Esq., and Mr. J. Curtis.
Species 6. Bryaxis Juncorum.
Plate viii, fig. 3.
SPECIFIC CHARACTER. Ferruginous and finely pubescent. Thorax nearly round, and thickly punctured, with a large foveola on each side, and one at the base, very minute. Body short and globose.
SYNONYM.
Bryaxis Juncorum. Leach, Zool. Mise. vol. iii, p. 86, spec. 6.
DESCRIPTION.
Heap nearly quadrate; the angles rounded and thickly punctured, with two foveola between the eyes, and a great depression in front.
ANTENNA pale ferruginous, and pubescent; the first, second, and last, joints large; the apex obtuse.
Parr pale yellow, and finely pubescent; about the length of the head.
Eyes black, prominent, and granulated.
Tuorax nearly globular; rather narrowed at the base, and thickly punctured ; with three foveolze, the centre one very minute.
ELvTRA nearly quadrate, and finely pubescent, with a line on each side of the suture, and one from the shoulder deeply impressed at the base.
ABDOMEN contracted, round, convex, and finely pu-
41
bescent; the first segment much the largest, with two depressed lines in the centre, and a row of yellowish hairs; the margin reflexed ; apex nearly obtuse.
Lees ferruginous, pubescent, and slender.
LrwcrH about a line.
HanrrAT, moss at the roots of trees, and amongst rushes.
This species is frequently found at Battersea, and other places near London; also in different parts of Norfolk, where it is taken in moss which grows amongst rushes and at the roots of trees.
Species 7. Bryaxis Nigriventris.
Plate vii, fig. 1.
SPECIFIC CHARACTER.
Bright ferruginous red. Abdomen black. Thorax globular and cana- liculate. Elytra with one stria.
SYNONYM.
Pselaphus Nigriventris. Kirby, MS .
DESCRIPTION.
Heap red, thickly punctured, and nearly quadrate ; with an angular depression in front, terminating in two punctures and an oblong foveola in the centre.
ANTENN# ferruginous; short, and thick; finely pu- bescent, with a few long hairs intermixed ; the last joint very large and acute.
Parr: testaceous and pubescent; the first joint long, and nearly cylindrical; second short and nearly angular ; third as long as the first two, and very much larger, oblong, and acute.
Eyes small, granulated, black, and shining.
T'nonax red and thickly punctured ; longer and wider than the head; the anterior part with the angles rounded ; the posterior part contracted ; a deeply impressed longi- tudinal line down the centre, and one on each side, al!
G
42
three terminating in punctures at the base, which are also situated in a semicircular line.
ErvrRA bright red, thickly punctured, and shining ; as long as the head and thorax, and spherical, with four depressions at the base, and a line on each side of the suture.
ABDOMEN smooth, black, shining, and spherical; not quite so long as the elytra; the first segment the largest, with two impressed lines in the centre; margin reflexed.
Lees ferruginous, long, and slender.
Lenetu rather more than one line and a half.
Hasirat,
This beautiful species was first discovered by the Rev. W. Kirby, who captured a specimen near Barham in Suffolk. A second was taken by Mr. J. Curtis, of Lon- don, in the New Forest, Hants, in 1825; and the Rev. F. W. Hope captured another at Shrewsbury, in Shrop- shire. This specimen comes very near to Reichenbach's Sulcicollis, at first sight, but differs in the sculpture of the thorax, as well as in colour, the former being of a cinnamon brown.
The peculiarity in the formation and proportion of the Palpi in this species might seem to afford sufficient ground for constituting it a new genus. Certainly, had I met with other species bearing the same character, I should have availed myself of them to divide the genus into two distinct sections.
Genus VI. PSELAPHUS.
SYNONYMS.
Pselaphus; Herrst:—Pselaphus, fam.i; REICHEN BACH.
GENERIC CHARACTER.
Antenne about half the length of the body, lomg, slender, and gradually clavated; the first joint long and cylindrical; the second shorter; the third, fourth, fifth, sixth, seventh, and eighth, of an equal size, shorter and cylindrical; ninth and tenth larger, and rather angulated ; the eleventh the largest, and elongate, oval, or ovate. Mazillary Palpi three times as long as the head ; with five joints;* the first very small ; second long, slender, and gradually clavated; the third about the same length, and clavated at both ends ; fourth small, and nearly oval; fifth very long and clavated; the clava pyriform. — Elytra nearly triangular, and about half the length of the Abdomen.
Species 1. Pselaphus Herbsti. — —
SPECIFIC CHARACTER.
Thorax elongated ; nearly cylindrical ; smooth and shining. Abdomen triangular, dark chesnut, and slightly pubescent.
SYNONYMS. Pselaphus Herbstii. Reichenb. Monog. Psel. p. 25, tab. i, f. 1. ————————— Leach, Zool. Misc. vol. iii, p 87, spec. |. ——-—— Heisii, d$ ? Herbst. Kàf. iv, p. 110, tab. xxxix, f. 10. — -—— Brevipalpis, 8. Schrank. Fn. Boic. i, 438.
* [ am not aware that any preceding writer has detected five joints in the Maxillary Palpi of this genus. Reichenbach, Leach, and others describe hem as having only three.
44. DESCRIFTION.
Heap longer than broad; the anterior part with a longitudinal furrow, and bifid; the front impressed; the vertex convex, smooth, and shining.
ANTENN# darkish chesnut and pubescent; rather more than half the length of the body; the first and second joints long and cylindrical; the following six nearly equal in size, and much smaller; ninth and tenth nearly triangular, and larger; the eleventh the largest, elongated, and ovate.
Parrr pale yellow, and pubescent; nearly three times the length of the head; the clava at the apex nearly oval.
Eyes large, prominent, granulated, and black.
Tuorax longer than the head, and nearly cylindrical ; smooth and shining; anterior and posterior parts nar- rowed and nearly equal.
ErvrRA dark chesnut and shining; longer than the thorax; nearly triangular and convex, with a longitudi- nalline on each side of the suture, and another at the shoulder arched and entire; the apex thickly covered with yellowish inflexed hairs.
ABDOMEN twice as long as the thorax; smooth and shining ; the first segment the largest, with a few yellow- ish hairs; the margin at the sides very broad and re- flexed; the following much shorter.
Lecs bright chesnut and pubescent; longer than the abdomen; thighs, tibize, and tarsi, rather slender.
LenetH a little exceeding one line.
HasBrTAT, moss on the stumps of trees in damp woods, and on marshes.
This species is by no means’ so common as Heise?. I, however, generally take one or two every year, at Lod- don and Woodbastwick. Reichenbach mentions a spe- cimen being taken under a stone near Berne, in Switzer- land.
45
Species 2. Pselaphus Heisei.
Plate ix, fig. 2.
SPECIFIC CHARACTER. Dark chesnut, and shining. Thorax narrowed before and behind,
and much dilated in the middle. Body elongated. Thighs very thick.
SYNONYMS.
Pselaphus Heisei. Reichenbach, Monog. p. 28, tab. i, fig. 2. —— Herbst. deat. iv, qn. 109,. no..1, tabs xxxix, fig. 9. a
a. Schrank. Faun. Boic. i, 438. Latr. Gen. Crust. et Insect. iii, p. 76, spec. 1. —— each, Zook Miis à violis pa 872spee:s 2^ —— Gracilicollis. Dahl. in litt. —— Eyrygaster. ^ Beck. in litt.
DESCRIPTION.
Heap elongated; the anterior part narrowed; depres- sed and bifid, with a longitudinal furrow in the centre ; the vertex convex and shining, with two small globular and hairy elevations between the eyes.
ANTENNA dull chesnut and pubescent; about half the length of the body, and rather thick; the last joint very large, and a little produced on one side.
Patri pale chesnut and pubescent; three times the length of the head; the clava oblong.
Kyes black, granulated, and prominent.
Tuorax longer than the head, and wider; narrowed at both ends, and much dilated in the middle; shining, smooth, and convex; the anterior part with two short impressed lines, nearly obsolete.
Exytra longer than the thorax, and considerably wider ; triangular, smooth, shining, and finely pubescent ; with a line on each side of the suture, and another from each shoulder deeply impressed.
ABDOMEN very long and narrow; more than twice the length of the thorax; the first joint much the largest, and convex, with the margin reflexed ; the three others smaller; apex a little produced.
46
Lees light chesnut and pubescent; the thighs very thick ; tibiae compressed; tarsi slender and yellowish.
LenGTH about one line and a quarter.
HaBrrar, the same as the preceding species.
This seems the commonest species of Pselaphus we have in Norfolk. It is distinguished from /Zerbstia by its more elongated form, and the width of the thorax; the antennz and legs are also much thicker.
Species 3. Pselaphus Longicollis.
Plate x, fig. 1.
SPECIFIC CHARACTER.
Dark chesnut and shining. Thorax nearly oval ; the base with two semicircular lines, joined by a puncture in the centre.
SYNONYMS.
Pselaphus Longicollis. ^ Reich. Monog. Pselap. p. 30, t. 1, fig. 3. a Dahl. in litt.
———— ——————— Leach, Zool. Misc. vol. 3, p. 87, spec. 3. Anthicus Dresdensis. Panz. Faun. Germ. Fasc. 98, no. 1.
DESCRIPTION.
Heap nearly as broad as the thorax, and shorter than in the preceding species ; anterior part producted and de- pressed, with two impressed punctures between the eyes.
ANTENNA pale and pubescent; half the length of the body; the first and three last joints the largest; apex ovate; the intermediate ones equal and slender.
Parrr pale ferruginous, and finely pubescent; three times the length of the head ; the clava at the apex ob- liquely truncated.
Kyes black, granulated, and prominent.
Tuonax longer than the head, and a little wider; oval, convex, and smooth, with a few hairs; the anterior part with two oblique impressed lines; the base with two curved lines, joined in the centre by a puncture.
ErvrRaA nearly triangular, convex, smooth, and shin- ing; the margin at the sides a little elevated; the de-
47
clivity at the apex thickly punctured; the posterior margin covered with yellowish inflexed hairs.
ABDOMEN broad; the first segment much the largest; the margin at the sides reflexed ; apex obtuse.
Leas chesnut, pubescent, and shining; thighs thickish ; tibiae compressed ; tarsi slender.
Lenerth rather more than one line.
Hasirat the same as with the preceding species.
This species is rare in England. The specimen from which my drawing was made, was captured at Horning, in Norfolk, by my respected friend Mr. R. Wigham of Norwich, an indefatigable collector of British Insects and Plants. This is the only specimen of it in Norfolk, and is now in the cabinet of Mr. J. Sparshall.
—
Species 4. Pselaphus Dresdensis.
Plate x, fig. ii.
SPECIFIC CHARACTER.
Pitchy black and pubescent. Thorax angulated ; the base with « semicircular impressed line.
SYNONYMS.
Pselaphus Dresdensis. . Reichenb. Monog. Pselaph. p. 32, t.i, fig. 4. Leach, Zool. Misc. vol. 3, p. 87, spec. 4. ————————— — — Herbst. Káàf. iv, p. 110, no. 2, tab. xxxix, fig. 11, et B. Hiesii. Payk. Faun. Sueci. ii, p. 361, no. 11. Anthieus Dresdensis. Fabric. Syst. Eleuth. vol. i, no. 23, p. 293
DESCRIPTION.
Heap oval; the anterior part slender; lengthened, and very much depressed ; the back part rounded.
ANTENNE dull liver colour and pubescent; rather more than half the length of the body, and slender ; the last joint lanceolate-ovate.
Pari yellowish brown, and finely pubescent ; about twice as long as the head.
48
[yrs prominent, granulated, and black.
Tuorax pitchy black, smooth, shining, and pubescent ; rather longer than the head, and convex; the anterior part the narrowest, and obtusely angulated; the base rounded, and much the broadest, with a semicircular impressed line.
ErvTRA subtriangular, and convex; the posterior margin with a row of light, yellowish, inflexed hairs; an impressed line on each side of the suture, and pubescent.
ABDOMEN pitchy black, pubescent, and shining ; very broad; the exterior margin reflexed ; apex a little pro- duced.
Lees dull red, and hairy; tibiz and tarsi slender.
LenertH a little exceeding one line.
HasiTat, moss on the stumps of trees in woods.
This is certainly next, in point of rarity, to Longi- collis; it is, however, found occasionally about Nor- folk. I have taken six specimens, at different times, at Woodbastwick; one has also been found near Loddon, by Mr. R. Wigham. The figure which I have given is of the female. There is a variety with the elytra inclin- ing to chesnut. Many persons have confounded Bryazis Juncorum with this insect. I have seen two or three of that species in different cabinets, with the name Dres- densis attached to them; but I think no one could make this mistake who had seen a specimen of each ' of the Genera, their forms being so very dissimilar as well as
the colour.
SCYDM/ENID./E.
vat Mia üben x Pcr M
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FAMILY II.
SCYDMZENID X.
ESSENTIAL CHARACTER.
MaxiLLARY Patri with four joints; the last joint the smallest and very minute.
MaNDIBULE bifid.
ErvrRA covering the whole of the abdomen.
Tarsi with five joints.
NATURAL CHARACTER.
Patri four, unequal.
MaxiLLARY Patri elongated, inflexed, and clavated, with four joints; the first short and thick; the second long, curved, and gradually clavated; the third very large and ovate, or pyriform; (in Sec. 1, with its apex round; in Sec. 2, with its apex truncated); the fourth subulate and almost obscured by hairs; (in Sec. 1, nearly obtuse, and so small as to be easily overlooked :* in Sec. 2, distinct, and acute).
* Kunze, not perceiving this minute joint, characterized the section, ** palpis triarticulatis." See S. thoracicus.
52
Lasiat Parr: short and retracted, with two joints ; the first cylindrical and large, the interior edge ciliate ; the apex terminating with a long seta; the second joint small and subulate, inserted between the lobes of the ligula.
Lasrum cartilaginous and subquadrate; the anterior angles and the process in the centre produced and acute; base truncated.
LicuLa membranaceous and nearly quadrate; apex three lobed; the lobes at the sides large and produced, the centre one rounded with two sete.
Laprvum transverse and horny; the anterior angles rounded ; the base excavated.
Maxirnuz horny, curved, and acute; the anterior edge thickly ciliate.
MaNDIBULE horny, curved, and produced to a point; the anterior edge with one tooth; the base very much dilated and roundish.
ANTENNE long and slender, with eleven articulations; about half the length of the body; the first, second, and last three or four joints the largest, or gradually cla- vated from the base; the intermediate ones smaller, and either oblong or nearly globose; the eleventh the larg- est, and either acuminated or ovate.
Evrzs large, globular, prominent, and finely granulated.
Heap either porrected or contracted; the front con- vex or flat.
Tuorax either elongated, nearly cordate, quadrate,
53 ovate, or globose; the base impressed and contracted.
Exyrra oblong and ovate, or oval; convex; the mar- gin inflexed; the angles at the shoulders prominent ; the base with deep sulci and foveole; punctured and pubescent; covering the whole of the abdomen.
Wrnes pale yellowish white and clear; longer than the abdomen and complicate; the nervures light brown and slender.
ScuTELLUM triangular and scarcely visible.
ABDOMEN ovate or oval; smooth; the base truncated.
Lees formed for running; slender, and without spines.
'Turens very abruptly clavated ; in one species with the anterior thigh triangular and compressed.
Tisi® slender; rather curved; gradually clavated and pubescent.
Tarsi with five joints; long and slender; nearly the length of the tibiz ; the first and last joints rather the longest; two claws.
Sexes. The antenne and legs of the male much thicker than those of the female.
TRANSFORMATIONS unknown.
Foop unknown.
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SYNOPSIS SPECIERU M.
SCYDM/ENUS.
STIRPS 1. PazpPis maxillaribus articulo quarto obsoleto.
Genus VII. SCYDM/ENUS.
1. Tarsatus. S. piceo-fuscus, pubescens, nitidus : thorace subovato postice foveolis quatuor notato: elytris basi lineolis duabus impressis: tarsis anticis dilatatis.
2. Ruricornis. S. piceo-niger: antennis pedibusque ferrugineis: capite porrecto: thorace dense pubescenti; elytris latissimis.
3. THoracicus. 5. piceus, pubescens; thorace max- imo; antice rotundato, gibbo, elytris latiori; capite par- vo, inserto, deflexo; antennis pedibusque flavo-ferru- gineis.
STIRPS 2. ParPis maxzillaribus distincte quadriarticulatis.
4. HinriCoLLis. S. niger nitidus; antennis articulis quatuor extimis majoribus: thorace antice angustiori, pube densa fusca vestito.
5. RumiLIPENNIs. S. niger, nitidus; antennis tho- race longioribus, castaneis, pubescentibus; articulis qua- tuor extimis majoribus nigris; thorace pube densa vestito ; elytris castaneis pubescentibus ; pedibus castaneis.
56
6. Denticornis. S. levis nitidus, piceo-niger; an- tennis masculis articulis octavo et nono denticulatis ; thorace dense pubescenti, postice foveolis duabus notato.
7. EroNGATULUs. S. elongatus, piceus, nitidus, pubes- cens ; foveolis duabus interocularibus; thorace elongato deflexo, postice utrinque fovea angulari impresso.
8. SrAnsHALLI. S. ferrugineus, pubescens, nitidus; capite angustato ; thorace basi impresso.
9. ScuTELLARIs. S. ovatus, pubescens, niger; thorace subquadrato convexo, basi angustato punctis sex trans- versis impressis; elytris basi foveolis quatuor; scutello suturaque subelevatis.
10. Bicotor. 5. elongatus, nitidus, pubescens, ni- gro-castaneus; antennis flavescentibus; articulo octavo reliquis minori; thorace nigriori postice ruguloso.
11. Corramis. S. oblongus, niger, punctatus; thorace antice latiori, postice valde angustato; seriebus duabus transversis punctorum impressorum; elytris, sutura, et scutello, elevatis.
12. Pusttuus. S. oblongus, niger, subpubescens, nitidus; thorace subelongato basi angustato serie trans- versa punctorum impressorum; elytris punctatis basi quadrisulcatis.
13. Wicuamu. S. piceus, nitidus, leviter pubescens ; antennis pedibusque pallide castaneis; capite puncto gemino frontali; thorace postice truncato, trifoveolato ; elytris basi quadriimpressis. i
Genus VII. SCYDM/ENUS.
SYNONYM.
Scydmenus, ( Palpatores, fam. viii); LATREILLE.
GENERIC CHARACTER.
Antenne gradually clavated: the first joint at the base a little lengthened ; the last three and four joints the largest; ele- venth ovate. Mazillary Palpi with the first joint short and thick ; second long, curved, and gradually clavated ; third large, and nearly pear-shaped, apex either rounded or trun- cated; fourth very small, and either nearly obsolete and ob- tuse, or a little curved, and acute. Abdomen nearly ovate ; base truncated; femur clavated.
SEcTION 1. Palpi with the fourth joint nearly obsolete.
Species 1. Scydmenus Tarsatus.
Plate xi, fig. 1.
SPECIFIC CHARACTER. Pitchy brown, pubescent, and shining. Thorax nearly ovate, with four foveole at the base. Elytra nearly ovate, with two de- pressed lines at the base; anterior tarsi dilated.
SYNONYMS.
Scydmenus Tarsatus. Kunze, Monog. Scyd. p. 11, spe. 3, fig. 3. -—— Hellwigii. Latreille, Gen. Crust. et Ins. vol. i. p. 282,
spec. 1. ————— ————— — —— Hist. Nat. d. Cr. et. d. Ins. ix,
p. 156. — ——— Gyllenhall, Ins. Suec. vol. i, p. 284.
Pselaphus Hellwigii. ^ Paykul, Faun. Suec. iii, p. 366, 5. Notoxus Minutus. Panzer, Faun. Ger. xxiii, 5.
—— Krit. Revis. d. Ins. Faun. i, p. 61. I
20 Lytta Picea. Marsham, Entomolog. Britannic. p. 486, 5. Scydmeenus Illigeri. Schuppel, MSS. Piceus. Kirby, MSS.
DESCRIPTION.
Heap pitch coloured, shining, and finely pubescent ; the anterior part a little attenuated and truncated.
ANTENN& testaceous, pubescent, and rather thick; the first joint long and cylindrical, having a long exca- vation on the internal side, proceeding from the insertion of the second joint; the last three joints the largest; the fifth from the base a little elongated; the eleventh ovate, with its base truncated.
Patri obscure testaceous and thickly pubescent; the third joint large and pyriform; the fourth short and thick, and scarcely perceptible.
Evrs black, prominent, and finely granulated.
Tuonax pitch coloured, shining, and finely pubescent, about twice the length of the head, and nearly ovate ; the base abruptly truncated, with four foveole trans- versely situated.
Exytra pitch coloured, but lighter than the thorax, shining, and finely pubescent; elongate-oval, with two deep depressions at the base; apex rounded.
ABDOMEN shining and ovate.
Legs pale testaceous and thickly pubescent; thighs long and abruptly clavated; tibia and tarsi thickish ; the anterior tarsi much dilated.
Leneru rather more than one line and a quarter.
HanrrAT, moss at the roots of trees in moist places, and under stones.
Scydmenus Helwigii is the type of this Genus, and has been described as a British species by most authors. I have never seen a British specimen of it, although I have examined all the principal cabinets in London and Norfolk: the specimens which are there named Hell- wigii are the true Tarsatus of Kunze, which has been described as Helwigii by Latreille and Gyllenhall. One specics, however, is clearly distinguished from the other, not only by the four foveole at the base of the
59
thorax, and the dilated tarsi, but by the general form— Hellwigii being a much narrower insect about the tho- rax, and the base of the elytra, than Tarsatus. I shall here give Kunze's specific character of it :—
Spec. i, S. Hellwigii. N. rufo-testaceus, nitidus, sub-pubescens ; thorace ovato inflato, postice obsolete bifoveolato punctulato; punctis basi crebriori-
bus; coleoptris oblongo-ovatis, convexis, connatis punctulatis; apice trun-
catis; fig. 1.
This insect is also standing in many cabinets under the name of Piceus, in consequence of Marsham having described it as Lytta Picea. 'This appears to be the only species of Scydmenus known by him. For a figure of this species I am indebted to Mr. J. Sparshall, who very liberally granted me free access to his cabinet on all occasions: it is also in the cabinets of the Rev. W. Kirby, J. F. Stephens, Esq., A. H. Haworth, Esq., and in the British Museum. It has been taken in London
and Bristol by Dr. Leach.
Species 2. Scydmenus Ruficornis. , Plate xi, fig. 2.
SPECIFIC CHARACTER.
Pitchy black. Thorax thickly pubescent. Antenne and legs dark 'erruginous, and hairy. Elytra very broad. Head porrected.
SYNONYM.
Scydmznus Ruficornis. Kirby, MSS.
DESCRIPTION.
Heap shining, very large, round, and porrected.
ANTENN# dark testaceous, hairy, and very thick; the first joint long and cylindrical; the second conical; the uext five much shorter, and nearly equal in size; the last four the largest, and much darker; the apex acute.
60
PaArrr pale ferruginous, finely pubescent, about the length of the head; the last joint rather more prominent than in the preceding species.
Evzs black, finely granulated, and shining.
Tuorax black and shining, very thickly covered with dusky brown hairs, the anterior part the smallest, and rounded; the base transversely impressed with two deep punctures, and a little contracted at the sides.
ErvrRa shining, covered with yellow hairs, much wider than the thorax, large, nearly ovate, and convex ; with two depressions at the base; apex inclining to a red brown, and rounded.
ABDOMEN pitchy and shining; a little produced be- yond the elytra.
Lecs pubescent; thighs pitchy black and thick; tibize dark chesnut, very thick towards the apex; tarsi much paler.
Leneru nearly one line and a quarter.
Hasitat, moss on damp banks in sandy situations, and under stones.
The first specimen I examined of this species was taken by Mr. Wilkin, and is now in the cabinet of N. A. Vigors, Esq. I have since seen specimens of it in the British Museum and other cabinets. Mr. J. Sparshall and myself were so fortunate as to meet with a pair in the beginning of April, 1824, near Loddon, in Norfolk, from out of moss in a sandy situation; it has also been taken at Barham, by the Rev. W. Kirby, and in Epping Forest, by Mr. Doubleday.
6l
Species 3. Thoracicus. Plate xi, fig. 3.
SPECIFIC CHARACTER.
Pitch-coloured and pubescent. Thorax very large, the fore part rounded, gibbous, and wider than the elytra. Head small, inserted into the thorax and defleved. Antenne and legs fer- ruginous yellow and hairy.
SYNONYMS.
Seydmzenus Thoracicus. Kunze, Monog. Scyd. p. 12, fig. 4. Auripes. Wilkin, MSS. DESCRIPTION.
Heap dull chesnut, small, flat, inserted into the tho- rax, deflexed and shining.
ANTENN# testaceous yellow and hairy, about the length of the head and thorax; the first and second joints large and cylindrical; third, fourth, fifth, and sixth of an equal size, and smaller than the preceding ; seventh larger and round ; eighth small; the last three the largest ; apex nearly acute.
Patri pale yellow and pubescent, about the length of the head; the last joint very small, and nearly con- cealed by hairs.
Eyes testaceous and shining, not very prominent.
Tuorax dark chesnut, shining, smooth, and pubes- cent, very large, the fore part rounded, gibbous, and wider than the elytra; the base a little contracted ; the sides slightly emarginated.
Exyrra pitch coloured and shining, thickly covered with fine fuscous hairs; a little elongated ; the base with two angular depressions; the apex rounded.
ABDOMEN pitchy red and shining, rather longer then the elytra; the apex somewhat ovate.
Lees ferruginous yellow, shining, and finely pubes- cent; thighs thick; tibi: and tarsi slender and much paler.
Leneru rather more than half a line.
HABITAT, moss on moist banks.
This species was first discovered by Mr. Wilkin, in
62
Cossey Park, near Norwich. He found only one spe- cimen of it, which is now in the cabinet of N. A. Vigors, Esq., who kindly permitted me to make a draw- ing from it. This is an exceedingly fine variety of the species, with its legs of a bright gold colour, (whence Mr. Wilkin named it Auwripes), and its thorax much brighter than in any specimen I have since seen. Mr. R. Wigham discovered a new habitat for it near Lod- don, in Norfolk, from which place we have taken seve- ral, all of which are much more obscure in colour than the former. This species is included in Kunze’s first family—Palpt Triarticulate.
Section 2. Palpi with the fourth joint prominent.
Species 4. Scydmenus Hirticollis.
Plate xii, fig- I-
SPECIFIC CHARACTER. Black and shining. Thorax thickly covered with fuscous hairs ; the anterior part the smallest. Antenne with the last four joints the largest and blackish.
SYNONYMS. Scydmenus Hirticollis. — Gyllenhall, Ins. Suec. 1, p. 286. ——- Kunze, Monog. Scydm. p. 16, spe. 7, f. 7. Pilosicollis. Dahl. MSS. Pselaphus Hirticollis. Illiger, Kaef. pr. i, p. 292. Paykul, Faun. Suec. iii, p. 367.
DESCRIPTION.
Heap black and shining, with a few hairs; very much porrected, round and smooth.
ANTENN# dusky ferruginous and hairy; about half the length of the body ; the last four joints the largest and blackish.
Patri fuscous and hairy, longer than the head, slender and porrected ; the fourth joint very conspicuous.
[2] vw
Eyes black and finely granulated, not very prominent.
Tuorax black, obscure, oblong, convex, and thickly covered with fuscous hairs; the anterior part the small- est ; base transversely impressed.
Exyrra black, shining, and smooth, with a few hairs, large, oblong, ovate, and convex ; the apex rounded.
ABDOMEN pitchy black and shining.
Lees dusky ferruginous, and finely pubescent; thighs black, very abruptly clavated ; the base very slender; tibiz long and slender, gradually thickened towards the apex; tarsi long, slender, and much paler.
Leneru about three quarters of a line.
Hanrrar, moss in damp woods in sandy soils, and under stones.
Gyllenhall mentions this species inhabiting the sandy shores of the sea; I have never taken it in those situa- tions myself. In moss from off the stump of trees in damp woods I have most frequently found it.
Species 5. Scydmenus Rutilipennis.
Plate xii, fig. 2-
SPECIFIC CHARACTER.
Body black and shining. Thorax black and thickly pubescent. An- tenne about the length of the Elytra, chesnut-coloured, and pubescent ; the last four joints black. — Elytra bright red ches- nut, with their apex blackish. Legs chesnut.
SYNONYM.
Seydmznus Rutilipennis. Kunze, Monog. Scyd. p. 17, sp. 8, £. 8.
DESCRIPTION.
Heap black, shining, round, and porrected.
ANTENN;E bright chesnut, slender, and pubescent, about the length of the elytra; the last four joints black.
Parr: pale testaceous and pubescent; the third joint much darker than the preceding.
Eyes large, granulated, and black.
64
Trorax not quite half the length of the abdomen, black and covered with hairs of a fuscous brown; the anterior part narrowed ; base a little impressed.
Exyrra bright red chesnut, smooth, finely pubescent, and shining; the apex, margin, and suture, blackish ; the base with two impressed lines; suture a little elevated.
AnDOoMEN pitchy black and shining.
Lees, dark chesnut, pubescent, and shining; thighs thick; tibiae and tarsi much paler.
Lenatu a little exceeding one line.
HanrrAT, at Swansea.
This appears to be the scarcest species we have in England. I have never heard of more than one specimen being captured, which is in the cabinet of the British Museum. This was taken at Swansea, and, I believe, by Mr. Millard. I do not know in what situation it was found, but should think most probable the habitat is the same as with the other species.
Species 6. Scydmenus Denticornis. Plate xiii, fig. 1.
SPECIFIC CHARACTER.
Pitchy black, shining, and smooth. Thorax thickly pubescent, with two foveole at the base. The male with the eighth and ninth joints of the antenne denticulated.
SYNONYM.
Scydmenus denticornis. Kunze, Monog. p. 20, fig. 11, spec. 11.
DESCRIPTION.
Heap pitchy black, smooth, shining, and porrected.
ANTENNA fuscous brown, slender, and pubescent ; the last four joints the largest, and much darker; the eighth and ninth joints towards the apex, in the male, very much denticulated ; apex nearly acute.
Parrr pale, testaceous, shining, and pubescent ; about
65
the length of the head; the fourth joint prominent.
Eyes black, prominent, and finely granulated.
Tuorax nearly quadrate, the anterior angles rounded ; the base with two foveolz, smooth, shining, and thickly pubescent. ‘The hairs of a fuscous brown.
ErvrRa nearly ovate, convex smooth, and shiniag, with a few fuscous hairs; the base narrowed, with six depres- sions; apex rounded.
ABDOMEN pitchy black, smooth, and shining.
Lees dark fuscous brown, slender, and pubescent ; thighs abruptly clavated.
Lenetu about three quarters of a line.
Hasirat,
This species is very nearly allied to rtzcollis : the female, in particular, might easily be confounded with it. I know of only one specimen, which is in the British Museum, and which was captured in Norfolk, either by Mr. Curtis, or by Mr. Griffin, I am not certain which. This is a female; I have, therefore, copied the Antenne of the male from the Monographie der Zmeisenküfer, by Kunze, (an admirable work on the Scydmenide of Germany).
Species 7. Scydmenus Elongatulus.
Plate xiii, fig. 2.
SPECIFIC CHARACTER.
Pitchy, pubescent, shining, and elongated. Head with two foveole between the eyes. Thorax elongated and deflexed, with two an- gular depressions at the base.
SYNONYM.
Scydmeenus Elongatulus. Kunze, Monog. p. 19, fig. 10, spec. 10.
DESCRIPTION.
Heap smooth, shining, and pubescent; the anterior angles elevated; the centre depressed; the base with K
66 two deeply impressed foveolz situated between the eyes.
ANTENNA dark chesnut, and thickly pubescent; the last four joints the largest ; apex nearly acute.
Patri pale testaceous yellow, shining, and pubescent; the fourth joint prominent.
Eyes black, finely granulated, and prominent.
Tuorax finely punctured, pubescent, shining, and elongated; narrowed in front, anterior angles rounded and deflexed; base truncated, with an angular impres- sion on each side, and two small foveolz in each angle; the centre a little elevated.
ErvrRa paler than the thorax, elongate-ovate, punc- tured, shining, and pubescent; with a deep excavation on each side of the suture at the base, and a slight depressed line at the shoulder.
ABDOMEN elongate-ovate, smooth, and shining.
Lees pale chesnut, pubescent, shining, and slender; thighs clavated.
LENGTH not quite one line.
Hasitat, moss in woods and damp places.
The specimen from which my drawing was made, was captured in Norfolk by the Rev. J. Burrell in the Spring of 1824. "This species is distinguished from any of the others by its more elongated form; the foveolz between the eyes; and the depressed lines at the base of the thorax.
Species 8. Scydmenus Sparshalli.
Plate xiii, fig. 3:
SPECIFIC CHARACTER. Ferruginous, pubescent, and shining. Head rather contracted. Thorax, with a parallel depression at the base, eatending a little way up the sides.
DESCRIPTION.
Heap rather contracted, punctured, pubescent, and
67
shining; the anterior angles much elevated, and bearing the antennae.
ANTENN# pale ferruginous, thickly pubescent, and gradually clavated ; apex nearly acute.
Parr pale testaceous yellow, and pubescent; the last joint prominent.
Eyes black, finely granulated, and prominent.
Tuorax rather elongated, finely punctured, pubescent, and shining; the anterior part rounded and deflexed ; the sides rather contracted ; a parallel depression at the base, extending a little way up each side; the base finely rugulose and slightly emarginated.
Exytra elongate-oval, punctured, pubescent, and shining; base truncated, with a deep excavation on each side of the suture; and a slight depressed line at the shoulder.
ABDOMEN oval, smooth, and shining.
Lees pale ferruginous, and pubescent ; thighs clavated.
Leneru rather more than half a line.
HaBiTAT, moss in damp woods.
I am not aware that this insect is in any other cabinet than that of Mr. J. Sparshall, of Norwich, who cap- tured it in Arminghall Wood, in Norfolk, in November, 1828. I therefore avail myself of an opportunity thus afforded me of attaching his name to this species, as a slight tribute of respect and gratitude, due to the con- stant and liberal kindness of an early and valued friend.
Species 9. Scydmeenus Scutellaris.
Plate xii, fig. 8.
SPECIFIC CHARACTER. Ovate, black, and pubescent. — Thora» nearly quadrate and convex ; the base narrowed, with six transverse impressed punctures. ' Elytra with four deep excavations at the base. — Scutellum and suture a little elevated.
SYNONYMS. Scydmznus Seutellaris. Kunze, Monog. p. 23, tab. xiv, fig. 14. Dahlii. Mus. Hoffmannsegg. Schuppel.
68
DESCRIPTION.
Heap contracted and flat, smooth, shining, and pu- bescent.
ANTENNA testaceous, pubescent, and gradually cla- vated, with the apex acute.
Par: pale testaceous, pubescent, and shining.
Eyes black and finely granulated.
'TnuonaAx nearly quadrate, convex, shining, and pu- bescent; the anterior angles rounded ; the base narrowed, truncated, and a little emarginated, with six transverse impressed punctures.
ErvTRA ovate, punctured, shining, and pubescent ; the base with four deep excavations; suture and seu- tellum a little elevated.
ABpoMeEN ovate, black, and shining.
Leas pitch-coloured and slender; the anterior thigh, in the male, triangular, compressed, and dilated.
LrxcTH about three quarters of a line.
Hasirat, moss on hedge-rows and woods; and in sandy or gravelly situations.
This species was first discovered, in England, near Bristol, by Dr. Leach. It has since been taken in Norfolk, by the Rev. J. Burrell, Mr. R. Wigham, and Mr. J. Sparshall; but it must still be considered as a rare British species. "These specimens were taken in a sandy or gravelly soil.
Species 10. Scydmeenus Bicolor.
Plate xiii, fig. 4.
SPECIFIC CHARACTER.
Elongated, darkish chesnut, shining, and pubescent. The base of the
thorax rugulose. The eighth joint of the antenne smaller than the preceding.
SYNONYM.
Scydmeenus Bicolor. Curtis, MSS.
69 DESCRIPTION.
Heap small, flat, shining, and finely punctured.
ANTENN bright testaceous yellow, shining, pubes- cent, and rather thick; the seventh joint from the base enlarged; the eighth much smaller, the last three the largest.
Parr pale yellow, thickly pubescent, about the length of the head ; the last joint acute.
Eyes black, prominent, and granulated.
Tuonax much darker than the elytra, shining and thickly punctured, the punctures very minute ; the ante- rior part large and rounded; the base contracted and rugulose.
Exyrra bright chesnut, finely punctured, and thickly covered with yellow hairs, elongate-ovate, and rather depressed, with two deep impressions at the base.
ABDOMEN chesnut, ovate, shining, and smooth.
Lees chesnut, slender, and shining; thighs gradually clavated ; tarsi paler.
Leneru rather more than half a line.
HaBrTAT, moss in woods at the roots of trees.
The first specimen of this insect I ever saw, was cap- tured by Mr. J. Curtis, of London, in the New Forest, Hants. I took another in Arminghall Wood, near Norwich, in the Spring of 1823; a third has been taken at Netley, by the Rev. F. W. Hope; these are, I be- lieve, the only three specimens known—at least, I have never seen or heard of any others. Not finding this species described by any author, either as Foreign or British, it was consequently without a name; I have therefore adopted that of Bzcolor, under which it stood in the cabinet of Mr. Curtis.
Species 11. Scydmeenus Collaris.
Plate xiv, fig. 2.
SPECIFIC CHARACTER. Oblong, black, and punctured. The anterior part of the thorax the widest ; the base with a double row of punctures, and very much contracted. Suture and scutellum a little elevated.
70
SYNONYMS. Scydmenus Collaris. Kunze, Monog. p. 26, spec. 16, fig. 16. oe Minutus. Gyllenhall, Ins. Suec. tom. i, p. 285. DESCRIPTION.
Heap short, nearly triangular, smooth, and shining.
ANTENN# pale testaceous, shining, pubescent, and slender; gradually clavated ; the ninth and tenth joints nearly round ; the last elongate-ovate.
Patri pale testaceous, and about the length of the head.
Eyes black, finely granulated, and shining.
TuorAx smooth, shining, slightly pubescent, and ra- ther elongated ; the anterior part much the widest ; the base narrowed, with a double row of punctures; the first consisting of four, the second of only two.
ErvrRa elongated, punctured, and pubescent; with two depressions at the base; the suture a little elevated.
ABDOMEN elongate-oval, black, smooth, and shining.
Lees pitch-coloured and shining; thighs thick; tibize and tarsi slender and paler.
LrNcru about one line.
Haarrar, moss, at Horning, Loddon, and South Creak.
This species is distinguished from Scydmenus Pusil- lus by its being larger, the thorax much wider, and the double row of punctures at the base. This is by no means rare in the parts of Norfolk already mentioned, where it is taken in society with Scydmenus Thoracicus, Scutellaris, and Hirticollis.
Species 12. Scydmeenus Pusillus.
Plate Xiv, fig. 1.
SPECIFIC CHARACTER. Black, oblong, slightly pubescent, and shining. Thorax rather elongated ; the base narrowed, with a transverse row of impress- ed punctures. Elytra punctured ; the base with four sulci.
iy (d SYNONYM.
Seydmenus Pusillus. Kunze, Monog. p. xxv, fig. 15.
DESCRIPTION.
Heap contracted, and nearly triangular, smooth, and shining.
ANTENNA testaceous, pubescent, and shining, gra- dually clavated ; apex nearly acute.
Patri pale testaceous, and finely pubescent, about the length of the head; the last joint prominent.
Eyes black, finely granulated, and shining.
Tuorax rather elongated; the anterior part the larg- est, and rounded ; the base contracted, with six impressed punctures forming a transverse line.
Ervrna elongate-ovate, punctured, pubescent, and shining; the base with four sulci; suture a little elevated, near the Scutellum.
ABDOMEN black, shining, and smooth.
Lees slender, shining, and pubescent; thighs pitch- coloured ; tibia, and tarsi testaceous.
LrwcrH about three quarters of a line.
Hasitat, moss. Bristol and London.
I am not aware that this species has ever been found in Norfolk. It is, however, not uncommon about Coombe Wood, and other adjacent parts of London; as well as at Bristol, where it has been taken by Mr. Millard. This is much smaller than the preceding species; to which it is nearly allied, as Collaris is sometimes found very small, and with the second row of punctures nearly obsolete, which gives them a great similarity.
Species 13. Scydmanus Wighamii.
Plate xiv, fig. 3.
SPECIFIC CHARACTER.
Pitchy, shining , and finely pubescent. Thorax truncated at the base, with three foveole. Head with two punctures in front. An- tenne and legs bright chesnut. Elytra with four depressions at the base.
~ (Aa
DESCRIPTION.
Heap flat, shining, and very much contracted.
ANTENN® bright chesnut, shining, and pubescent, gradually clavated; the last joint nearly acute.
Patri pale testaceous and finely pubescent.
Eyes black, prominent, and granulated.
Tuonax shining, smooth, and finely pubescent ; convex, short, the anterior part round; the sides very much emarginated towards the base, which is abruptly truncated ; with three foveole.
ErvrRA oblong, and finely pubescent; the base with four depressions; the two nearest the suture the largest.
ABDOMEN oblong, smooth, and shining; the apex rounded.
Lees bright chesnut, pubescent, and slender.
LrwcrH a little exceeding one line.
Hasirat, moss. Near Loddon.
I have named this insect as above, as a token of re- spect due to Mr. R. Wicuam, of Norwich, who took the first specimen of it, I ever saw, near Loddon, in March, 1824, and to whom I am indebted for the habitats of several other species, before unknown to me.
BEC PTANATEON
OF
THE PLATES.
PLATEI. fig. 1. Euplectus Reichenbachii, a Antenne jig. 2. Euplectus Sanguineus, a Antenne fig. 3. Euplectus Karstenii, a Antenne, b Palpi fig. 4. Euplectus Signatus, ) Palpi
PraTEIL. /fig.1. Euplectus Kirbii, a Antenne ——— — — — fig. 2. Euplectus Pusillus, a Antenne jig. 3. Euplectus Bicolor, a Antenne fig. 4. Euplectus Brevicornis, a Antenne
PraTEIII. fig.1. Bythinus Curtisii, a Antenne, b Palpi jig. 2. Bythinus Securiger, a Antenne of the male, b an- tennz of the female, c Palpi
PraATEIV. fig.1. Bythinus Burrelli, a Antenne of the male, b the four first joints of the Antenne of the female, c Palpi
PraATrE V. fig.1. Arcopagus Bulbifer, a Antenne of the male, b the two first joints of the antennz of the fe- male, c Palpi
—-—-_—s— fig. 2. — — — —— Clavicornis, a Antenne ———-— . fig.3. — —— — — Puncticollis, a Antenne ————— füg.4.
— Glabricollis, a Antenne PuaTe VI. fig. 1. Tychus Niger
Prare VII. fig. 1. Bryaxis Nigriventris, a Palpi, ) Antenne -— fig. 2. Bryaxis Longicornis, a Palpi, b Antenne, c an- terior tibia -— fig. 3. Bryaxis Sanguineus, a Antenne —————— jÍg.4. Bryaxis Impressus, a Antenne
14
PraTE VIII. fig.1. Bryaxis Fossulata, a Antenne —— ——- fig. 2. Bryaxis Hematica, a Antenne
Jig, 3. Bryaxis Juncorum, a Antenne
Pirate IX. fig. 1. Pselaphus Herbstii, a Antennze
jig. 2. Pselaphus Heisii, a Antenne, b Maxillary Pal- pi, c Maxilla, d Labial Palpi, e Ligula, f Labi- um, g Mandibula, Labrum
PLATE X. fig. 1. Pselaphus Longicollis, a Antenne, b Palpi ————— Jig. 2. Pselaphus Dresdensis, a Antenne, b Palpi
PrATE XI — fig. 1. Scydmznus Tarsatus, a Antenne fig. 2. Scydmenus Ruficornis, « Antennz fig. 3. Scydmznus Thoracicus, a Antenne, b Palpi
Prate XII. fig. 1. Scydmenus Hirticollis, a Antenne
fig. 2. Scydmenus Rutilipennis, a Antenuz
—————— — fig. 3. Scydmenus Scutellaris, fem. a Maxillary Palpi, b Labial Palpi, c Ligula, d Labium, e Labrum, f Mandibule, g Maxilla, h Antenne, i One of the anterior legs, to shew the angulated thigh
of the male
PraATE XIII. fig. 1. Scydmenus Denticornis, a Antenne of the male fig. 2. Scydmznus Elongatulus, a Antenne
————— — fg. 3. Scydmenus Sparshalli, a Antenne - fig. 4. Scydmenus Bicolor, a Antenne
Pirate XIV. fig. 1. Scydmenus Pusillus, « Antenne —-———-— fig. 2. Scydmenus Collaris, a Antenne —-———-_ fig. 3. Scydmenus Wighamii, a Antenne.
PAGE 21, LINE 8, for semicircular, read trausverse
—— 22, 13, for semicircular, read transverse 27; 14, for dark ferruginous, read pitchy brown 28, 3, after obscure ferruginous, read, and finely pubescent 58, 31, for Helwigii, read Hellwigii
—— 58, ——— 37, for Helwigii, read Hellwigii
S. Wilkin, Printer, Norwich.
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