ART. 8. BUPRESTID BEETLES OF MEXICO—FISHER. 3 
3. Tibiae flattened, outer margin sharp ....--.-...-.-.-..... Pachyschelus Solier. 
Tibiae cylindrical or subcylindrical, outer margin not sharp..-.....-......... 4 
4. Prosternal process deeply longitudinally grooved..........-... Brachys Solier. 
Prosternal process not longitudinally grooved............-... Lius H. Deyrolle. 
5. Prosternal process strongly constricted by the anterior coxal cavities ; agriliform. 
Taphrocerus Solier. 
Prosternal process not constricted by the anterior coxal cavities ; form oblong or 
OVE sete ds . 35. se Esso Rp sie aehe, Leer rachel onalias =. rel ba iB 
6. Metasternum deeply and narrowly iene emarginate ; prosternal process nar- 
row, and narrowly rounded at apex ; body subcy teadrical, strongly convex 
beneath. Sem ed Ras ng 5 Rk lito ee eaee eee) Callimicra: HT” Deyrolle. 
Peete Drona eet eae: Seed process usually very broad, 
and broadly rounded at apex (in a few species it is rather narrow, and narrowly 
rounded atapex); body elliptical or oval, flattened or feebly convex beneath.. 7 
7. Antennae abruptly dentate from the sixth joint, outer joints triangular. 
Leiopleura H. Deyrolle. 
Antennae eompact, gradually broader anteriorly, outer joints nearly square. 
Leiopleurella Fisher. 
The genera Leiopleura and Callimicra are very closely allied and 
some of the species have a tendency toward connecting the two 
genera. Jn the genus Levopleura the species usually have the pro- 
sternal process very broad, broadly rounded at the apex, and the 
body strongly flattened beneath, but there are a few oblong species 
which approach the genus Callimicra by having the body more 
convex beneath, the prosternal process narrower, and more narrowly 
rounded at the apex, in which case the anterior margin of the meta- 
sternum is more deeply emarginate. In Callimicra the body is 
isually more subcylindrical, but in a few species it is more flattened 
and thus approaches the genus Leiopleura. In all of the species 
examined in this genus the prosternal process was narrow, and 
narrowly rounded at the apex, with the anterior margin of the 
metasterum deeply emarginate for the reception of the prosternal 
process. 
In nearly ail of the species the legs are lodged, more or less, in 
depressions on the underside of the body, but this character as used 
in the key applies only to the species which have the depressions 
very deep, and the upper surface of the legs, when in repose, is nearly 
on the same level as the remainder of the body. 
Genus TRACHYS Fabricius. 
Trachys Faprictus, Syst. Eleuth., vol. 2, 1801, p. 218. 
This is a very large genus and contains about 350 described species. 
It is distributed throughout the entire world, with the exception of 
the Nearctic Region, which includes Canada, United States, and the 
northern half of Mexico. The species of this genus reach their 
highest development in the Indo-Malaysian Region, and so far only 
