NATURAL SCIENCES OF PHILADELPHIA. 
75 
Coxae anticse parvse prominulfe acetabulis confluentibus, intermedife approxi- 
inatse, posticse parvc© modice distantes. Abdomen articulo Imo elongato, 
sequentibus sensim minoribus. 
A remarkable genus, which at first sight is suggestive of Rhysodes, and seems 
to have no relation to any genus of Tenebrionidse, although properly belonging 
to that family. I have placed it near Cononotus, in which also the anterior 
fioxse become contiguous by the confluence of the acetabula : there is however 
no other point of resemblance. 
D. striaticeps, castaneus nitidus, capite thoraceque supra et subtus pro- 
funde striatis, fronte arcuatim excavata, et ad apicem foveata, thorace latitu- 
dine longiore, postice paulo angustato, angulis anticis valde rotundatis, posti- 
cis subrectis rotundatis, dorso canaliculato, ad medium transversim maxime 
excavato, et tuberculo rotundato hand prominulo in latere ipso munito, (qua- 
propter latus biincisum apparet) ; elytra plana elongato-ovalia, thorace paulo 
latiora, ad basin emarginata, profunde minus dense punctata, stria suturali 
exarata, abdomine parce profunde punctato. Long. '15. 
Fort Yuma, California, under bark of cottonwood ; very rare. 
Opateinus Latr. 
0. aciculatus, oblongo-ovalis, parum convexus, niger opacus, brevissime 
parce pubescens, thorace sequaliter confertissime aciculato, lateribus antice 
rotundatis, postice subparallelis, late depresso-reflexis, margine incrassato, 
elytris fortiter striato-crenatis, (punctis inters titiis parum angustioribus), his 
parce punctulatis ; prothorace subtus profunde sulcato-punctato, parapleuris 
grosse punctatis, abdomine modice punctato. Long. '4. 
Texas, Mr. Lindheimer ; two females. Seems to differ both from 0. anthra- 
cinus andmoestus Muls. (Opusc. Entom. No. 5, p. 79, 82) by the thorax 
being densely aciculate, with the sides strongly depressed and somewhat re- 
flexed. From 0. n o t u s it is at once known by the more strongly striate elytra 
and by the very deep grooves of the under surface of the prothorax. 
Glyptotus Lec. 
Mentum triangulare, angulis anticis acutis, medio valde elevatum et antice 
acuminatum. Antennae tenues, extrorsum sensim incrassatse. Caput pone 
oculo superne utrinque sulco maxime profundo insculptum. Pedes tenues, 
femoribus baud clavatis, tibiis hand sulcatis, tarsis tibiis brevioribus subtus 
aureo-pilosis, posticis articulo 4to reliquis conjunctis baud breviore. Corpus 
alatum. 
A genus closely allied to Upis, but of a more robust form, and differing by 
the shorter legs and posterior tarsi, and by the non-clavate femora. It ap- 
proaches most nearly to a genus (probably nondescript) represented by Tene- 
brio femor^tus Beauv. {Upis fulvipes Herbst), but that species has the 
mentum mach less elevated, and the antennfe more thickened externally so 
that the iDenultimate joints become transverse ; the postocular groove in it is 
reduced to a short line or oblong fovea. 
G. cribratus, niger subopacus. capite fere Isevi, inter oculos transversim 
late impresso, thorace latitudine breviore, lateribus antice rotundatis deflexis, 
posticis subrectis, elj^tris thorace latioribus, oblongis convexis, humeris obliquis 
prominulis, punctis oblongis remotis seriebus 8 utrinque positis, interstitiis vix 
obsoletissime punctulatis. Long. -45 — -6. 
Georgia and Texas. Besides the eight rows of large remote punctures, there 
is a marginal series and a short scutellar one. The body beneath is almost 
free from punctures. The sides of the thorax converge a little behind the 
middle, and are almost straight to the posterior angles, where they are bent a 
little inwards. 
MoKDELLA Linn. 
M. comata, longiuscula, transversim convexa, nigra densissime longius 
1858.] 
