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30 [ JUNE, 
taceous; the pectus, the knees and the tips of the tibiz are usually fuscous; the 
tarsi are always testaceous; the scutellum is occasionally nearly black. The 
tips of the mandibles and the antenne are black; the second joint of the latter 
is half as long as the third. 
Horta Fabr. 
H. sanguinipennis, elongato-oblonga, aptera, atra, nigro-pubescens, sea- 
bro-punctata, antennis capite thoraceque plus sesqui longioribus, elytris pallide 
sanguineis, humeris obsoletis. Long. +3—-35. 
Say, Journ. Acad. Nat. Sc. 3, 279. 
Massachusetts; Dr. Harris. Found in sandy places in early spring. The 
ventral segments of one sex (female ?) are furnished in the middle with a broad 
black velvety patch of hair; in the other sex this is wanting. 
2. H.Stansburii, elongata, atra, alata, nigro-pubescens, scabro-punctata, 
antennis capite thoraceque vix longioribus, versus apicem attenuatis, elytris san- 
gulneis, fortius punctatis, humeris distinctis. Long. +39—-5 
Haldeman, Stansbury’s Expedition to Great Salt Lake, 377. 
Two specimens brought from Utah by Capt. Stansbury. For an opportunity 
of examining them I am indebted to Prof. Haldeman. 
Aithough so different in form from the preceding, this species exhibits a re- 
markable parallelism of structure. Inthe head and thorax there is absolutely 
no difference to be perceived. The antenne are shorter and much more attenu- 
ated externally ; the body being provided with wings, the humeri become pro- 
minent, while in the preceding apterous species they are obsolete, or very 
broadly rounded. ‘The larger specimen has a round patch of black velvety hair 
on the middle of each ventral segment of the abdomen. 
CrerHatoon Newman. 
1. C.lepturides, valde elongatum, utrinque attenuatum, subtiliter punctu- 
latum et pubescens, testaceum vel fuscum, thorace plus minus fusco variegato, 
lateribus subsinuatim rotundatis, angulis posticis prominulis, antennis pedibusque 
testaceis, pedibus posticis plus minus infuscatis. Long. :-36—-4. 
Newman, Ent. Mag. 5, 377; Hald. Journ. Acad. Nat. Sc. 2d ser., 1, 95. 
Lake Superior, not rare. This species varies very much, some of the speci- 
mens being very dark fuscous; the head and thorax are, however, always varied 
with testaceous; the sides of the thorax are slightly sinuous from the prominence 
of the posterior angles. 
Although considered by Newman as belonging to the Qidemeride, this 
singular genus seems to me better placed as an anomalous genus of the Cantha- 
ride. The appendages between the claws of the tarsi are not found in ideme- 
ride, While in this tribe they have their analogues in Zonitis, Horia and Nemog- 
natha, thcugh in the present genus they are much larger and obtuse; the 
mandibles are slender and acute at the apex, as in the genera just mentioned. 
2. C. varians, valde elongatum, utrinque attenuatum, subtiliter punctulatum, 
et pubescens, fuscum, antennis pedibusque testaceis, thorace lateribus late rotun- 
datis, angulis posticis non prominulis. Long. °35. 
Haldeman, Journ. Acad. Nat. Se. 2d, 1, 95. 
One specimen from Maine, Mr. Brevoort. This species only differs from 
the dark colored varieties of the preceding by having the posterior angles of the 
tzorax less prominent, so that the sides are not sinuate; the head and thorax are 
entirely fuscous above, and testaceous beneath. 
Synopsis of the Atopide, Rhipteeride and Cyphonide of the United States. 
By Joun L. Le Conte, M.D. 
A large mass of pentamerous serricorn Coleoptera may be distinguished by 
having the anterior cox inserted in deep acetabula between the pro- and meso- 
sternum, and the prosternum although sometimes very narrow, entirely cor- 
neous. The abdomen has tive visible ventral segments, except in Cebrionide, 
