28 J. L. LECONTE. M. D. 



C ALOCIIROxlIU^ (inei. 



Lateral margin of protliurax iinijressod at the miildle 2, 



Lat(M-al margin of jirothorax not impressed ; black, prothorax and elytra s^carlet, 

 the former with a transverse posterior dusky spot, tihire straight. Length 



9 mm. Col., one %; Dr. Horn fei'vens n. sp. 



2. — Prothorax finely channeled 3. 



Prothorax strongly channeled, black, sides of prothorax fulvous; middle and 



hind tibite curved. Length 6 — 9.5 mm. Atl. region pei'facetllS Say. 



a. — Prothorax entirely fulvous ; Texas. 'S 9 • 

 3. — Blue-black, prothorax scarlet; middle and liind til)ia' curved. Length 7 — 



9.5 mm. Col.; Or , rnficollis Lee. 



Black, protliorax and anterior half of elytra scarlet, scutel black ; tibiae straight. 

 Length 8 mm. Cala.; Xev dimidiatus Lee. 



C fervens. — Black, velvety with extremely fine short jpubeseence. Head 

 with a Ijroad shallow slightly channeled impression between the eyes which are 

 small and convex ; muzzle extremely short, beak none ; antennae one-half as long 

 as the body, second joint about one-half as long as the third, which is equal to the 

 ft>urth; joints moderately compressed, about twice as long as wide, distal side 

 slightly oblique. Palpi short with last joint triangular. Prothorax quadrate, one- 

 half wider than long, front angles rounded ; sides thickened and reflexed, with a 

 strong ridge running from the middle of the sides obliquely and slightly forwards 

 on to the disc which is only feebly channeled near the base ; the posterior exca- 

 vation between the strong basal margin and the ridges is dusky. Scutel black, 

 truncate behind. Elytra scarlet, closely but indistinctly striate Avitli rows of 

 shallow punctures, not reticulated; elongate, parallel, narmwly margined, but 

 little wider than the prothorax. TibifE not curved. Length niur. 



Colorado, one % ; Dr. Horo. Related to perfacef us Init differs by the- 

 color, by the thickened side margin of the prothorax not impressed at the 

 side, by the disc being very slightly channeled, and finally by the head 

 being qnite without beak. Species apparently congeneric with the four here 

 tabulated are cited in Biol, Centr, Amer, as belonging to Lj/ffistojiterus, 



Sub-family 11.— LAMPYEID.E. 



The species of this sub-family are easily separated from the Lycida; 

 by the middle coxa; being contiguous, and the epipleurie wide at the base 

 of the elytra, even when the latter as in some 9 9 are very short. 



From the Telephoridae they are known by the metathoracic episterna 

 being sinuate on the inner margin, a character first observed by Duval, 

 and which seems to me to have much value in apportioning the more 

 difficult forms to their respective groups. 



The genera examined seem to indicate two tribes ; the first is numerous 

 on both continents, especially in the tropical regions ; the second is perhaps 

 exclusively American, unless it can be united with Drilini. 

 Head more or less covered, antennae apiiroximate or moderately distant; meta- 

 thoracic ejiimera long Lampyeijji, 



Head exposed, antenna* distant; metatlioracic ei^mera wide Phengodini. 



