and Central A?nerican Malachiidae and Melyridae. 23 



from the base, shaped as in ?, but broader, 2 black at the apex above, 

 and with a long, curved appendage, 3-7 subequal. 



$. Antennae with joints 1 and 2 subequal in width, 1 infuscate 

 along its inner face. 



Hab. Mexico, Oaxaca. 



Gorham's diagnosis and general description of this 

 species was taken from three males. He was unaware that 

 the extended testaceous coloration of the head was pecuUar 

 to that sex. The female from Etla, labelled C. frontalis by 

 him, has the anterior margin of the clypeus only testaceous. 



6. Collops nigrijpennis, n. sp. 



(J. Oblong, rather narrow, the head and prothorax shining, the 

 elytra dull ; the head, elytra, abdomen (the ventral sutures excepted), 

 and legs black, the prothorax testaceous; the antennae with the 

 first joint externally, and the second, except along the outer edge, 

 testaceous, for the rest black ; the surface finely pubescent, and also 

 set with long, erect, scattered, blackish, bristly hairs. Head densely 

 punctate, transversely flattened anteriorly, the eyes prominent; 

 antennae with joint 1 strongly curved, widened outwards, longer 

 than broad, somewhat angulate within and almost smooth externally, 

 2 with a short slender appendage, 3-9 feebly serrate, 3-6 subequal 

 in length. Prothorax strongly transverse, as wide as the base of 

 the elytra, faintly punctate. Elytra subparallel, moderately long, 

 densely, finely punctate. 



Length 3^, breadth If mm. 



Hah. Mexico {Truqui, in Mus. Brit.). 



One male. Narrower than C. tricolor; the head and 

 elytra black; the first antennal joint ((^) strongly curved 

 and much narrower, and the second with a slender appen- 

 dage ; the elytral punctuation fine and dense. The second 

 antennal joint viewed from in front appears to be trilobate 

 externally. 



7. Collops femoralis. 



Collops femoralis, Gorh., Biol. Centr.-Am., Coleopt. iii, 2, 

 pp. 113, 314. 



^. Antennae with joints 1 and 2 testaceous, 2 suffused with black 

 beneath, 1 curved, elongate-triangular, 2 with a slender, short, 

 rudimentary appendage received beneath the reflexed inner margin 

 of the joint, 3-9 feebly serrate, subequal. 



$. Antennae with joint 1 testaceous, oblongo-conic, rather slender, 



Hab. Mexico; Guatemala. 



