British Museum (Natural History). Dept. of Zoology.

Catalogue of the specimens of Dermaptera Saltatoria and supplement of the Blattariæ in the collection of the British museum (Volume 4) online

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Online LibraryBritish Museum (Natural History). Dept. of ZoologyCatalogue of the specimens of Dermaptera Saltatoria and supplement of the Blattariæ in the collection of the British museum (Volume 4) → online text (page 1 of 21)
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IRLF



B 3 DMfl



H



BBHI




BIOLOGY

LIBRARY



CATALOGUE



OF THE



SPECIMENS



OF



DERMAPTERA SALTATORIA



IN



THE COLLECTION



BRITISH MUSEUM.



PART IV



BY

FRANCIS WALKER, F.L.S., &c



PRINTED FOR THE TRUSTEES OF THE BRITISH MUSEUM
LONDON, 1870.



UBRARY



LONDON :
NEWMAN, PRINTER, DEVONSHIRE STREET, B1SHOPSGATE.



PRE FACE.



THE object of the present Catalogue is to give a complete List of
all the genera and species of Dermaptera Saltatoria known to
exist in the collections of European and American Entomologists.
The letters a, 6, c, &c., after the species, denote the specimens now
contained in the British Museum, followed by the habitat and the
mode in which each of them was obtained ; and the absence of
these letters indicates the species wliich are desiderata, and there-
fore desirable to be procured for the collection.



J. E. GRAY.



BKITISH MUSEUM,

November list, 1870.



M113828



CATALOGUE



OF



DERM APT ERA.



PART IV.



Fam. 6. ACR1DID.E. (Continued).

THE continuation of the Catalogue of this family is preceded by a
few remarks on some of its characters and by a synopsis of the genera.
Most of the species may be arranged in three groups, which are repre-
sented by Acridium Tataricum, Heteracris plorans and Caloptenus Italicus.
Acridium and Heteracris are distinguished from Caloptenus by the longer
hind legs and narrower hind femora. The fastigium or tip of the
vertex is generally hexagonal in Acridium and in the neighbouring
genera, but this character appears also in some of the Caloptenus
group. The Acridium group, with some exceptions, is also dis-
tinguished by the greater distinctness of the dorsal keel and by the
slope of the prothorax on each side, and by the absence of lateral
keels. The prosternal spine has very generally greater length in the
Acridium group than in the Caloptenus type, where in a few species
it is reduced to a slight transverse ridge ; in Cyrtacanthacris it attains
its full development and is curved and oblique, but this character
appears also in Heteracris. The Heteracris group (which in some of
its forms has an affinity to the Tryxalidae) and the Caloptenus group
differ generally from the Acridium group in the conical tip of the
vertex, in the flat disk of the prothorax, and in the shorter wings.
The migratory and especially destructive locusts belong to Acridium






60(j ,'. CATALOGUE OF



t and to Pachytelus, the latter a genus of (Edipodidae ; the great size
'. V)f 'tiheur! wikgs is filled 'for long flights when the wind is favourable.
* The' affinities 6f'l r ue' generk cannot be expressed by a linear arrange-
ment, but may be better represented by placing the groups in parallel
series as suggested by Brisout de Barneville. In like manner the
CEdipodidae and the Acrididae may be arranged in parallel series, and
this plan may be applied to the larger divisions of Dermaptera.
Brunner von Waltenwyl has observed the like analogies in the Blattidae,
and has given to some genera the names of Parahormelica, Para-
naupbceta and Parapboraspis, to indicate the resemblance between
them and the genera Hormetica, Nauphceta and Phoraspis.

A. Fourth and fifth joints of the maxiliary palpi much dilated.

1. TRYBLIOPHORUS.

B. Maxillary palpi cylindrical.

a. Eyes oval, slightly prominent.
* Crest of the prothorax high, much compressed,
f Antennae short; apical joint long, furrowed above. 2. TERATODES.
ft Antenna? long; apical joint simple.

j Prosternal spine acute, entire. - - 3. MONACHIDIUM.

Prosternal spine notched. - 4. DERICORYS.

** Crest of the prothorax of moderate height.

t Head small. - -_-. 5. TITANACRIS.

ft Head large.

J Hind wings long, spotted. - - - - 6. TROPIDACRIS.
J Hind wings shorter, not spotted. - 7. LOPHACRIS.

*** Prothorax not crested.
f Prothorax not three-keeled.
| Prosternal spine thick, oblique, generally curved and

extending to the mesosternum. - - 8. CYRTACANTHACRIS.
+J Prosternal spine straight, generally slender and not oblique.
Prothorax not compressed.
X Wings long.
o Prothorax not cylindrical.
-t- Fore border of the prothorax not notched.
- Hind tibiae not dilated.
?i Eyes not approximate.
-f- Keel of the prothorax conspicuous ; transverse impressed

lines well defined.

Third transverse line of the prolhorax defined. 9. ACRFDIUM.

= Third transverse line of the prothorax obsolete. 10. DIPONTHUS.
-\ |- Keel of the prothorax hardly defined, scarcely interrupted

by the transverse lines. - 11. CANTANTOPS.

-j \ f- Prothorax with no keel ... ]2. EYNISACRIS.

Eyes approximate.

Prosternal spine slender, acute, not oblique.

Antennae much shorter than the body. - - 13. CALACRIS.

Antennae nearly as long as the body.



607

Tip of vertex quadrilateral. - 14. APALACRIS.

Tip of vertex not quadrilateral. - 15. ABRACRIS.

U5I Prosterual spine thick, slightly oblique and compressed.

16. EUPRKPACRIS.

-W- Hind tibiae dilated in the middle. - - - 17. QUILTA.
- *- Fore border of the prothorax notched. - 18. CHROMACRIS.

oo Prothorax cylindrical.

-j- Fore border of the prothorax notched. - - 19. AGRIACRIS.

- -* Fore*border of the proihorax not notched.
-+ Prosiernal spine conical.

*-* Eyes remote. ___... 20. OXYA.

-M- Eyes approximate. - - - - -22. SYNTOMACRIS.

*> Eyes rather prominent.

Eyes not prominent. - - - 23, STENACRIS.

H - J- Prosternal spine transverse, slightly forked.

-n- Head longr. - 24. GLAPHYRACRIS.

M - M- Head short. - 25. CHARIACRIS.

H J - Prosternal spine acute, rather short, slightly compressed,
X X Wings short or rudimentary.

o Prosternal spine not transverse.
H- Prothorax cylindrical in the fore part, dilated hindward.

26. PKOPOEDETES.

-+-+ Prothorax dilated hindward. 27. PEDIES.

oo Prosternal spine transverse, very broad. - - 28. TINARIA.
ooo Prosternal spine very slender. - 29. OXYPHYMA.

Prothorax compressed. - - 30. CUCULLIGERA.

ft Prothorax generally with three keels.
Hind femora long.

Head not keeled. - - - *- - 31. HETERACBIS.
Head keeled. - - - 32. LEPTACRIS.

J{: Hind femora short, thick.
Vertex excavated.
X Prothorax with a distinct keel,
o Prosternal spine conical.

-* Disk of the prothorax with a keel on each side. 33. CALOPTENUS.
-i h Disk of the proihorax rounded on each side. 34. OMMATOLAMPIS.
oo Prosternal spine bituberculate. - - 35. PLATACANTHUS.
X X Keel of the prothorax more or less indeterminate.

36. PLATYPHYMA.

Vertex not excavated. - 37. PODISMA.

b. Eyes globose, very prominent.
* Body cylindrical. - - - 21. OPIPTACRIS.

** Body not cylindrical.

f Wings complete. - 38. OMMEXECHA.

ft No wings. - - - - - - 39. BATBACHOPUS.

Genus TRYBLIOPHOHUS, C. D. S. 546.

This genns is much more nearly allied to Oxya than to Teratodes,
which it precedes in Serville's arrangement.



608 CATALOGUE OF

TRYBLIOPHORUS BIVITTATUS.

M;is. Fuscus, fere cylindricus ; caput et prothorax viridi univittata ;
caput laleribus facieque flavescentibus, fastigio longi-conico ; pnlpi
albidi; anlennce rufcB ; prothorax punclutus, margine ponlico conico,
lateribus fluvescente notatis ; proslerni spina viridis, transversa,
longiuscula, acuta ; pectus viride, fusco notatum; abdomen et pedes
fulva ; alee anticae virides, abdomine brevinres, vilta costali ferru*
yinea nigro marginala ; ales posticce nigricantes.

Male. Brown, nearly cylindrical. Head and prothorax with a very
broad grass-green stripe, which widens from the vertex to the hind border
of the prothorax. Head smooth, with a transverse furrow behind the lip
of the vertex, which is elongate-conical ; front roughly punctured, with
lour yellowish dots; inner keels apparent only between the antennae; outer
keels* very slight, diverging towards the face; sides and face yellowish.
Eyes testaceous, short-elliptical, prominent. Palpi whitish. Antenme
purplish red. Prothorax punctured ; hind border elongated, conical ;
several yellowish marks on each side. Prosternal spine green, transverse,
acute, rather long. Pectus green, with some small brown marks. Abdo-
men and legs tawny. Hind femora shorter than the abdomen ; hind tibiae
shorter than the hind femora, their spines with black lips. Fore wings
green, rather shorter than the abdomen, with a ferruginous black-bordered
costal stripe. Hind wings blackish; veins black. Length of the body
17 lines; expansion of the fore wings 22 lines.

This species seems to be different from T. octomaculatus, for in the
description of the latter no mention is made of the brown stripes of the pro-
thorax nor of the costal stripe of the fore wings.

a. Brazil. From Mr. Wallace's collection.

TRYBLIOPHORUS BIMACULATUS.

Mas. Testaceus, gracilis> punctalus, fere cylindricus ; caput prothorace
perpaullo lalius, vertice nigro, fascia intraoculari testacea lata,
fastigio subelliplico ; palpi albidi ; anlennce nigra, corpore breviores ;
proslerni spina gracilis; longiuscula, acuta; femora postica apice
nigricanlia ; alee anticte brevissimce, macula discoidali magna nigra.

Male. Testaceous, slender, punctured, nearly cylindrical. Head
smooth, very little broader than the prothorax, black above, with a broad
testaceous band between the eyes ; tip of the vertex depressed, subelliptical ;
front largely punctured ; keels apparent only between the eyes. Eyes
reddish, short-elliptical, very prominent. Palpi whitish. Antennae black,
about three-fourths of the length of the body. Prothorax with the trans-
verse impressed lines strongly marked; hind border nearly straight, not
elongated. Prosternal spine slender, acute, rather long. Hind femora
rather longer than the abdomen, blackish at the tips; hind tibiae very
pilose, rather shorter than the hind femora, their spines with black tips.
Fore wings rudimentary, with a large black spot in the disk. Length of
the body 12 lines.

a. Demerara. From Mr. Bowers' collection.



ACR1DID.E. 609



Genus MONACHIDIUM, C. D. S. 546.

MONACHIDIUM LUNUS, C. D. S. 540.
a. Brazil.

Genus CYRTACANTHACRTS, C. D. S. 550.

The few following species of this genus and of Acridium were omitted
in the preceding pan of this Catalogue.

America.

A. Wings longer than the abdomen.

a. Tip of the vertex hexagonal.
* Fore winas with markings.

f Spine* of the hind tibiae white.

J Prothorax with two concise stripes.

Head short. - Americana.

Ht-ad slightly elongated.

X Pectus piceous. - - pectoralis.

X X Pectus pale. - - viridescens.

II Prothorax without two concise stripes.

Hind wings not yellowish.

X Hind femora streaked on the inner side. - - inscripta.

X X Hind femora not streaked on the inner side. - subspurcata.

Hind wings yellowish. - impleta.

f-f Spines of hind tibia yellowish.

| Keel of the prothorax distinct. - subvittata.

|| Keel of the pi othorax indistinct. - - simulatrix.

** Fore winys without markings.

f Spines of hind tibiae pale.

| Prothorax concisely striped.

Stripe of the prothorax rather broad. - parvula.

Stripe of the prothorax narrow. - alutacea.

Stripe of the prothorax very narrow. - unilineata.

|| Prothorax not concisely striped. ... septentrioualis.
|[;| Prothorax not striped. - - concolor.

ff Spines of the hind tibiaB black. - - diversifera.

b. Tip of the vertex elongate-subquadrate. - munda.

c. Tip of the vertex conical. - differentialis.

B. Wings not longer than the abdomen.

a. Fore wings with black spots. - - cribrata.

b. Fore wings not spotted with black. - Milberti.

CYRTACANTHACRIS ALUTACEA.
Acridium alutaceum, page 577.

a, 6. St. John's Bluff, E. Florida. Presented by E. Doubleday, Esq.
c. United States. Presented by F. Walker, Esq.



610 CATALOGUE OF

CYRTACANTHACRIS DIFFERENTIALS.

Acridium differentiale, U/iler, Trans. III. St. Agric. Soc. v. 450.
a. Illinois. Presented by F. Walker, Esq.

CYRTACANTHACRIS CONCOLOR.

Fcem. Fulva, sat yracilis ; fastigiumplanum, subhexagonale ; prothorax
subcarinalus, subtiliter scaber, postice rufescens, tnargine postico
producto angulato ; prosterni spina crassa, obliqua^ mesosternum
attingens ; tibia poslicce ru/#, spinis pallide flavis apice nigris ;
alee anticcB cinerece, corpori cequilongce, venis fulvis basi rufis.

Female. Tawny, rather slender. Head short, smooth ; tip of the
vertex flat, subhexagonal; front thickly punctured; the four keels well
defined, diverging towards the face. Eyes elongate-elliptical. Antennae
slender, cylindrical. Prothorax finely scabrous, reddish towards the hind
border, with a slight keel and with four well-defined transverse lines ; fore
border and sides slightly rounded; hind border elongated, angular. Pro-
sternal spine thick, oblique, rounded at the lip, extending to the meso-
sternum. Hind femora as long as the abdomen; hind tibiae red, rather
shorter than the hind femora ; spines pale yellow, with black tips. Wings
cinereous, as long as the body; veins of the fore wings tawny, red towards
the base. Length of the body 24 lines ; expansion of the fore wings
52 lines.

a. Mexico?

CYRTACANTHACRIS SIMULATRIX.

Mas. Fulva, gracilis ; caput et prothorax nigro interrupts bivittata ;
prothorax subtiliter scaber, subcarinatus, vitlis duabus exterioribus
nigris valde interruptis ; prosterni spina obliqua, subflexa, sat
gracilis, mesosternum fere attingens; tibia posticce rufa, spinis
albidis apice nigris ; alee anticae diaphance, corpori cequilonga,
guttis subcoslalibus playis discoidalibus maculisque exterioribus
nigris.

Male. Tawny, slender. Head and prolhorax with two slender
interrupted black stripes. Head smooth ; fore part of the vertex depressed,
hexagonal ; front largely punctured, with four well-defined keels which
diverge slightly towards the face. Eyes ferruginous, elliptical. Prothorax
finely scabrous, with a slight keel and with two much abbreviated black
stripes in addition to the inner pair before mentioned; keel not rounded,
interrupted by the transverse impressed marks which are distinctly marked ;
fore border and sides slightly rounded; hind border much rounded. Pro-
sternal spine oblique, rather slender, slightly bent, extending nearly to the
fore border of the mesosternum. Hind femora as long as the abdomen ;
hind tibiae red, a little shorter than the hind femora ; spines whitish, with
black tips. Fore wings pellucid, as long as the body ; markings blackish ;
a row of dots along the costa; some large patches in the disk and some
spots towards the tips ; veins whitish, black in the markings. Hind wings
pellucid ; veins black, tawny towards the base. Length of the body
16 lines; expansion of the fore wings 35 lines.

a. St. Domingo. From Mr. Tweedie's collection.



ACRIDHXE. 611



CYRTACANTHACRIS UNILINEATA.

Mas. Viridescens, sat gracilis; caput et prothorax flavo unilineata ;
caput vertice piceo, fasligio magno hexagonali ; antennee fulvce,
robustce ; prothorax scaber, piceo plagiatus, carina lene determinata ;
prosterni spina pallide flava, robusta, obliqua, mesosternum attingens ;
pedes fulvi, femoribus poslicis extus albidis, spinis albidis apice
nigris ; al<e cinerece, corpore paullo breviores, piceo venosce.

Male. Dull green, rather slender. Head and prothorax with a
slender yellow stripe. Head smooth, short; vertex piceous; tip depressed,
hexagonal; front tawny, coarsely punctured; keels well defined; inner
keels nearly parallel, slightly curved inward in the middle; outer keels
diverging towards the face. Eyes lurid, fusiform. Antennae tawny, rather
stout. Prothorax scabrous, with a well-defined keel; five or six piceous
patches on each side; transverse impressed lines distinctly marked ; fore
border and sides very slightly rounded; hind border much rounded. Pro-
sternal spine pale yellowish, stout, oblique, extending to the mesosternum.
Legs tawny; hind femora longer than the abdomen, whitish and with tes-
taceous ridges on the outer side; hind tibiae almost as long as the hind
femora ; spines whitish, with black tips. Wings cinereous, a little shorter
than the body; veins piceous. Length of the body 10 lines; expansion of
the lore wings 20 lines.

a. Indiana. Presented by F. Walker, Esq.

CYRTACANTHACRIS DIVERSIFERA.

Fcem. Testacea, sat robusta, subtus nigro varium ; caput rufum. fastigio
longi-quadrato ; prothorax subcarinatus, subtiliter scaber, disco
antico rufo, vittis duabus macutaribus nigris; prosterni spina
robusta, arcuata, obliqua mesosternum attingens ; femora postica
nigro fasciata et maculata; tibice posticce nigro spinosce ; alee anticce
cinerea, corpore breviores.

Female. Testaceous, rather stout. Head red, smooth, paler in front ;
fore part of the vertex depressed, elongate-quadrate; front thinly punc-
tured, with four distinct keels; inner keels very slightly converging from
the middle to each end ; outer pair diverging much towards the face. Eyes
piceous, irregularly oval, tessellated with testaceous. Prothorax finely
scabrous, red between the fore border and the fourth transverse impressed
line, with a slight keel which is slightly interrupted by the distinct trans-
verse impressed lines; keel not rounded ; three black spots forming a short
stripe on each side; fore border hardly rounded; sides slightly rounded;
hind border much rounded. Prosternal spine stout, curved, oblique,
extending to the fore border of the mesosternum, which has a blackish spot
on each side. Borders of the pectoral segments black. Abdomen with
various black marks. Hind femora as long as the abdomen, with angular
black bands and with lower black spots on the outer side ; hind tibiae rather
shorter than the hind femora, their spines black. Fore wings cinereous,
shorter than the body; veins tawny, reddish towards the base. Hind



CATALOGUE OF

wings pale cinereous; veins black. Length of the body 19 lines; expan-
sion of the fore wings 34 lines.

It represents, like C. munda, a transition from the Acridium type to
the Cnloptenus type. The anterior part of the vertex is between a hexa-
gonal and an elliptical form, and the upper pail of the front is not
excavated.

a. North America. Presented by F. Walker, Esq.

CYRTACANTHACRTS MUNDA.

Fo3m. PttWde lulea ; vertex disco ferrugine.n, villa lain nigra, fasfigio
longi-xuliquudrafo ; proihnrax subcarinatus^ fere gluber dim-o rufes-
cente, maculis duabus niyiis maynis subquadratis ; prn*irrni afiina
crassa, obliqua, mcsoslernum altingens ; abdomen niyro fasfiatum ;
femora pnstica apice nigro notata ; al< anticce cinerece, striyis tribus
guttularibus venisque nonnullis nigris.

Female. Pale luteous, moderately stout. Head smooth ; vertex with
a ferruginous disk and with a broad black stripe on each side between the
eye and the hind border ; its fore part elongate-subquadrate, with a keel
on each side; front very slightly punctured, with four distinct keels, the
inner keels hardly diverging, the outer keels slightly diverging towards the
face. Eyes lurid, somewhat elliptical, the hind side more rounded than
the fore side. Prothorax wider hindward, almost smooth, with a slight
keel which is not rounded and is hardly interrupted by the transverse
impressed lines; disk reddish; a large suhquadraie black spot on each
side ; fore border hardly rounded ; sides slightly rounded ; hind border
much rounded. Prosternal spine oblique, extending to the mesosternurn,
its breadth at the base equal to its length. Abdomen with five irregular
black bands on the basal half and wiih less complete black bands on the
apical half. Hind femora as long as the abdomen, with a black mark ou
the outer side near the tip, and with a black apical spot; hind tibiae a little
shorter than the hind femora, their spines with black tips. Fore wings
cinereous, as long as the body, with three streaks of various black dots ;
some of the exterior transverse sectors black ; veins pale, some of the longi-
tudinal veins black. Hind wings pellucid; veins whitish, those towards
the tips mostly black. Length of the body 12 lines; expansion of the fore
wings 24 lines.

The shape of the tip of the vertex distinguishes it from nearly all the
species of Cyrtacanlhacris and Acridium.

a. Chili. From Mr. Cuming's collection.

Africa and Arabia.
A. Head short. Hind legs moderately long and stout. Wings

long.

a. Hind wings not red.

* Hind tibiae blue. - ruficornis.

** Hind tibiae not blue.
| Spines of hind tibiae white.
; Hind wings towards the base with yellow veins.



613

Prothorax slightly widened hiudward.

X Fore keel of the prothorax low. - internexa.

X X Fore keel of the prothorax high. - citrina.

Prothorax much widened hindward. compta.

JJ Veins of hind wings not yellow towards the base. - subsellata.

ff Spines of bind tibiae not white.
J Fore wings with markings.
Prothorax with a concise pale dorsal stripe.

X Fore wings dark, with pale markings. - . inclyta.

X X Fore wings pale, with dark markings.

o. Markings of the fore wings comparatively few and regular.
-* Dorsal stripe rather broad. - - concisa.

H - Dorsal stripe of the prothorax narrow. turbida.

oo. Markings of the fore wings comparatively many and irregular.
-H Hind wings without a yellowish tinge. - variegata.

-H t- Hind wings with a yellowish tinge. decisa.

Prothorax with no pale concise dorsal stripe. - - fascifera.

J Fore wings without markings. - - flavescens.

b. Hind wings red on nearly half the surface.

* Fore wings with regular bands. rubella.

** Fore wings with patches. - pictula.

c. Hind wings rosy at the base. - purpurifera.
B. Head elongate. Hind legs very long and stout. Wings

hardly long. - prasina.

C. prasina and C. auricornis are probably one species, which may be
considered as the type of a new genus. It has a transition character; in
the elongation of the head, the hind legs and the shorter wings it resembles
Heteracris, but it has the hexagonal tip of the vertex and the prothorax of
Cyrtacanthacris and of Acridium. According to Brisout de Barneville's
arrangement in parallel series it is the form in the Aciidium group that
represents Heteracris in the Caloptenus group.

CYRTACANTHACRIS INTERNEXA.
C. ranacea, p. 556. C. ruficornis, Serville.

The colour of the hind tibiae and of their spines and the markings of
the fore wings distinguish this species from C. ranacea, which inhabits
Hindostan.

CYRTACANTHACRIS RUBELLA, page 556.

Gryllus (Locusta)cyaneus? Stall, Saut. et Grill, pi. 15 b., f. 56 Acridium
cyaneum? Haan, Verz. Nat. Gesch. Ned. Ind. Bez. Ins. 153,

Stoll states that the species described by him is from Surinam.

CYRTACANTHACRIS COMPTA.

Foem. Fulva ; caput et prothorax nigricante late bivittata; capuf nigri-
cante sexstrigatum, frontis carinis nigricante marginatis ; palpi
pallide testacei; antenna lutece ; prothorax postice scaber, vittis
quatuor nigricantibus testaceo pustulatis ; proslerni spina pallide
testacea, crassa, obliqua, arcuata, acuta, mesosternum attingens ;



614 CATALOGUE OF

abdomen basi pallide testaceum ; femora poslica extus albido vittata;
tibiae poslicce pallide trstacece; alee anlicce pallide cinerea, corpore
longiores, gutlis subcoslalibus nigris, plagis qnatuor slrigisque dvabus
obliquis discoidalibus cinereis piceo venosis, slriyis duabus basulibus
e venis nigris.

Female. Tawny. Prothorax and hind part of the head with two
broad blackish snipes which do not extend to the hind border of the former.
Head smooth ; three blackish streaks on each side between the eye and the
mouth; tip of the vertex depressed, hexagonal; front thinly punctured,
with four distinct keels, which are bordered with blackish on both sides and
diverge slightly towards the face. Eyes elongate-elliptical, not oblique,
with many brown lines. Palpi pale testaceous. Antennae luteous. Pro-
thorax smooth, with a well-defined keel which is slightly interrupted by the
transverse impressed lines; two broad blackish exterior stripes, which, like
the inner stripes before mentioned, include some minute testaceous
pustules ; space between the outer and inner stripe partly testaceous; hind
part scabrous; fore border rounded; sides very slightly rounded; hind
border much rounded. Prosternal spine pale testaceous, thick, oblique,
curved, acute, extending to the mesosternum. Abdomen pale testaceous
towards the base. Hind femora with a whitish stripe on each side, a little
longer than the abdomen ; hind tibiae pale testaceous, very little shorter
than the hind femora, their spines with black tips. Fore wings pale
cinereous, longer than the body, with some black dots along the costa and
with some cinereous piceous-veined marks in the disk, and with two lanceo-
late streaks which proceed from the base and are formed by piceous or
black veins; the marks consist of four large spots and of two exterior broad


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Online LibraryBritish Museum (Natural History). Dept. of ZoologyCatalogue of the specimens of Dermaptera Saltatoria and supplement of the Blattariæ in the collection of the British museum (Volume 4) → online text (page 1 of 21)