70 Mr. G. C. Champion's Revision of the Mexican 



39. Attains nigroaeneus. 



Anthocomus nigroaeneus, Gorh., Biol. Centr.-Am., Coleopt. 

 iii, 2, p. 117. 



(?. Antennae elongate, feebly serrate, joints 3-11 longer than 

 broad; anterior tarsi with the prolonged upper portion of joint 2 

 slender, about reaching the apex of 3. 



$. Antennae much shorter, joints 4r-10 about as broad as long; 

 posterior tibiae slightly produced at the inner apical angle. 



Hah. Guatemala. 



A small, shining, nigro-aeneous form, thickly clothed 

 with long erect hairs intermixed with the fine pubescence ; 

 the legs variable in colour, but with at least the posterior 

 femora infuscate; the elytra much widened posteriorly 

 in both sexes. The single male included in the series of 

 five examples before me has the antennae very much more 

 elongate than in the females. 



40. Attains laevifrons, n. sp. 



$. Comparatively short, much widened posteriorly, shining; 

 nigro-aeneous, the elytra with a greenish lustre, the antennae fusco- 

 testaceous, the clypeus, the points of insertion of the antennae, 

 the legs (the tips of the tarsi excepted), and trochanters testaceous ; 

 finely pubescent and also set with long, erect, intermixed, bristly 

 hairs. Head polished, sparsely, excessively minutely punctate, 

 obsoletely foveate on the vertex, unimpressed in front; antennae 

 very short, joints 8-10 subtransverse. Prothorax small, trans- 

 verse, sparsely, excessively minutely punctate. Elytra com- 

 paratively short, broader than the prothorax, much widened 

 posteriorly; closely, finely pimctate. Legs slender; posterior 

 tibiae slightly produced at the inner apical angle. 



Length 2 mm. 



Hab. Panama, Pena Blanca (Champion). 



One female, found in January, 1883. Less elongate and 

 more shining than A. nigroaenens, the head smoother, the 

 antennae ($) very short, with the penultimate joints sub- 

 transverse, the elytra shorter, greenish, and closely, finely 

 punctate, the legs testaceous. 



41. Attains laticollis. 



Anthocomus laticollis, Er., Entomographien, p. 112; 

 Gorh., Biol. Centr.-Am., Coleopt. iii, 2, p. 117. 



