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



i^. Upper surface with intermixed 

 erect setae. 

 d*. Body subcuneiform in (J, 



oblong in $ subcuneatus, n. sp. 



e*. Body oblong in both sexes. 

 c^. Setae very long; fifth ven- 

 tral segment (cJ) not 



foveate setiger, n. sp. 



d^. Setae shorter; fifth ventral 

 segment {^) very deeply 



foveate foveiventris, n. ap, 



j^. Upper surface without erect 

 setae. 

 f. Form (cJ?) oblong. 



e*. Prothorax closely punctate ; 

 body rather convex, sur- 

 face coarsely punctate . nigripes, n. sp. 

 p. Prothorax sparsely punc- 

 tate ; body slender, more 

 depressed, surface finely 



punctate viridulus, n. sp, 



gf*. From ( S) oblongo-conic ; body 



robust, vestiture coarse . conicus, n. sp. 

 j^. Body ferruginous; vestiture de- 

 cumbent, fine : species very 

 small ferriigineus, Gorh, 



1. Trichochrous denticulatus, n. sp. (Plate II, fig. 21, (^, 

 prothorax.) 



(J. Elongate, parallel-sided, shining; black, with a faint brassy 

 lustre, the elytra greenish, the tarsi piceous; clothed with shaggy 

 cinereous hairs intermixed with an abundance of long erect black 

 setae. Head closely punctate; antennae moderately long, the joints 

 preceding the terminal one broad and strongly transverse. Pro- 

 thorax subquadrate, along the median line about as long as broad, 

 abruptly and obliquely narrowed anteriorly to the advanced apical 

 portion, the sides armed with six or more projecting teeth which 

 become longer and stouter towards the apex and obsolete towards 

 the base, the hind angles obtuse; rather sparsely punctate on the 

 disc, more closely so towards the sides. Elytra long, widest at the 

 base, compressed below the humeri; closely, coarsely punctate, 

 rugose before the middle. Beneath densely punctate, the anterior 

 portion of the prosternum transversely wrinkled; fifth ventral 



