and Central American Malachiidae and Melyridae. 25 



Collops tricolor, Horn, Trans. Am. Ent. Soc. iii, pp. 80, 81 

 {nee Erichson, Gorham) ; Fall, Journ. N. York Ent. 

 Soc. XX, pp. 251, 256 (1912). 



(J. Antennae with joint 1 broad, triangular, 2 without visible 

 appendage, 3-9 serrate, subequal. 



Hab. North America, Canada and the Middle States to 

 Kansas. 



Gorham (Biol. Centr.-Am., Coleopt. iii, 2, p. 313) has 

 called attention to the various forms doing duty for C. 

 tricolor (Say) ; but he does not appear to have seen N.- 

 American examples of the insect identified by Horn as 

 C. tricolor, of which there are several from Canada, etc., in 

 the British Museum. These northern specimens, for an 

 additional pair of which from Lyme, Conn., we are indebted 

 to Mr. Fall, have the head wholly black ; the basal two or 

 three joints of the antennae (in both sexes) testaceous, and 

 the others more or less infuscate; the prothorax and 

 abdomen rufo-testaceous ; the elytra very finely punctured, 

 nigro-caeruleous, sometimes with the epipleura rufo-piceous ; 

 and the tarsi rufo- or fusco-testaceous. No appendage to 

 the second antennal joint is visible in the four males of 

 C. tricolor before me, or in that of C. brevicollis. This 

 character is not mentioned by Fall in his recent revision 

 of the N.-American Collops.] 



9. Collops amplicollis, n. sp. 



Bluish-black, the labrum and clypeus, the base of the mandibles, 

 the two basal joints of the antennae above, the prothorax, and a 

 space down the middle of the abdomen, rufo-testaceous or testaceous, 

 the head to the anterior margin in both sexes, and the elytra, 

 violaceous or blue, the tarsi sometimes rufo-piceous in $; clothed 

 with fine cinereous pubescence intermixed with very long, erect, 

 black, bristly hairs. Head broad, densely, finely punctate, with a 

 slightly depressed polished space on each side near the eyes anteriorly 

 in (J; antennae (c^) setose, joint 1 broad, subsecuriform, smooth 

 externally, convex, closely punctate, and suffused with black within, 

 2 with a long, curved, slender appendage, 3-9 transverse, subequal, 

 (?) joint 1 oblongo-conic, curved, rather slender. Prothorax moder- 

 ately transverse, shining, very minutely, closely punctate. Elytra 

 densely, rather coarsely punctate, conjointly rounded at the apex. 



Length 4^5, breadth 2,^-2^ mm. ( (J $. ) 



Hab. Mexico {Truqui, in Mus. Brit. ; Mus. Oxon.), 

 Puebla (Salle). 



