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



sparsely, strongly spinulose anterior and intermediate 

 tibiae, and the rather broad, black, shining body. 



9. Trichochrous pubescens. 



Pristoscelis pubescens, Gorh., Biol. Centr.-Am., Coleopt. iii, 

 2, p. 124. 



(J. Prothorax large, as wide as the elytra, more rounded at the 

 sides and less transverse than in $ ; anterior and intermediate tibiae 

 with a rather stout blimt spur at the inner apical angle ; fifth ventral 

 segment unimpressed, broadly truncate at the apex. 



Hab. Mexico, Guanajuato {Salle : type, $), Lagos and 

 Aguas Cahentes city {Hoge : c^ $). 



The types of this species are females. Hoge subsequently 

 sent us a good series from the State of Aguas Cahentes, 

 including both sexes. A rather large, elongate form, with 

 the body nigro-aeneous, and thickly clothed with long 

 decumbent pale brownish hairs intermixed with an abun- 

 dance of erect black setae ; the puncturing dense and rather 

 fine, even on the elytra ; the tibiae sparsely spinulose exter- 

 nally; the legs, antennae, and palpi wholly black; the 

 antennal joints 5-10 strongly transverse, becoming pro- 

 gressively wider; the head very densely punctate, the 

 epistoma flattened. 



10. Trichochrous dilaticollis, n. sp. 



Pristoscelis fuscus, Gorh., Biol. Centr.-Am., Coleopt. iii, 2, 

 p. 328 {nee Lee). 



(J. Elongate, moderately shining; black, the elytra with a faint 

 brassy lustre, the legs piceous, the anterior femora reddish beneath ; 

 thickly clothed with long decumbent cinereous hairs intermixed 

 with scattered, erect, pallid and black setae, the marginal cilia long. 

 Head densely, rugosely pvmctate, the epistoma flattened ; eyes very 

 large ; antennae short, rather stout, joints 5-10 strongly transverse, 

 becoming progressively wider. Prothorax very large, as wide as 

 the elytra, broader than long, gradually, arcuately narrowed an- 

 teriorly, the angles obliterated; densely, finely punctate. Elytra 

 moderately long, parallel in their basal half, the epipleura narrow ; 

 densely, finely, rugosely punctate. Fifth ventral segment feebly 

 emarginate at the apex. Tibiae sparsely spinulose externally, the 

 anterior and intermediate pairs with a very short, blunt, truncated 

 tooth at the inner apical angle. 



Length 3| mm. 



