: 
LeConte. ] 606 [April 1s, 
from Diplocelus (Verhandl., k. k. Zool. Bot. Gesells. Wien, 
1877, p. 189). We have in our fauna, by this arrangement, 
three species, of which the one above described is new. 
They are as follows: 
Table of species of DipLocaLus. 
Lateral lines of thorax well marked. 
Thorax narrowed in front, sides nearly straight, hind angles prominent 
ExqyaneMllyys gooeosoodacco dbo eo oNobOa Ooo HODd SDD GUGO ONE angusticollis. 
Thorax not narrowed in front, sides regularly arcuate......... brunneus. 
Materal lines vor tMoOraxtOWSOlETCs crcuctete vectors aivers o evens erelc\ereleternisistsraistere rudis. 
D. brumnmeus Lec., New species, 1863, p. 73, has the thorax equally 
wide at apex and base, and the lines at the sides of the thorax well marked. 
The elytra are slightly wider than the thorax and very sparsely clothed 
with a recumbent pubescence, the interstitial punctures bearing short semi- 
erect hairs. Length .14 inch; 3.5 mm. 
Occurs from Pennsylvania to Illinois. 
D.rudis Lec., (Marginus) loc. cit; philothermoides Reitter, Verhand. 
k. k. Zool. Bot., Gesellsch. Wien, 1877, p. 189. 
A much smaller species than either of the preceding, resembling at first 
glance a Philothermus. The thorax is rather broader than the elytra, 
coarsely and densely punctured, with a feebie trace of one of the lines only. 
The surface is pubescent as in brunneus. Length .08 inch ; 2mm. 
In describing this species Mr. Reitter says the intervals are 
without fine punctures. They are nearly obsolete in some 
specimens but quite distinct in others. 
D. mus Reitter, loc. cit., p. 188. 
Under this name a species is described by Mr. Reitter, who 
is in doubt whether it came from “Amer. oce.” or the West 
India Islands. It seems to be Mexican. 
Table of species of LITARGUS. 
The species may be distinguished in the following manner : 
Terminal joint of antennz oval, scarcely longer and never wider than 
THE MPTE COCA 5 cays coyeye« aic)'es «c/s foe: sinks ea tere <elegeen ella e sieuibereete eee keene al, 
Terminal joint of antenne truncate at tip, usually longer and always 
WICETAUM AMS the! PLECECIMO N= ccrteiio tev eleueierreretcleteletelerietatciene tienen vate a. 
1. Club of antenne rather loose ; thorax rather finely punctured and de- 
pressed, basal impressions distinct................1. sexpunctatus. 
Club of antennze compact ; thorax coarsely punctured, convex basal im- 
PLESSIONSMONSOLELEC) vets cleaves ale ererererereteyerare ote SniGeusels .....4. didesmus. 
