450 Goleopterological Notices, VI. 



the sculpture not being imbricate but finely and subtransversely 

 reticulate. The antennae are unusually short. The two speci- 

 mens before me are females. 



TRO<;OPIII><ElTS Mann. 



The species allied to fimidarUis constitute a small group in 

 which the sexual differences in bodily form and habitus become 

 extreme, the male being very much stouter than the female and 

 with the head and prothorax conspicuously larger. The three 

 known to me ma^' be distinguished as follows by the males : — 



Eyes large, at nnicli less tlian their own length from the prothorax; pronotum 

 finely and extremely densely pnnctate, -with a very narrow impunctate 

 median line. 



Sides of tlie jtrothorax parallel in apical half siinplarillS Lee. 



Sides of the prothorax convergent from the middle to the apex ( falhix Csy. 9 ) 



pallid iiliis Csy. 

 Eyes small, at their o\\n length from the base; pronotum finely' and sparsely 

 punctate toward the middle, with a broad impunctate median area. 



salicola n. sp. 



The eyes are of about the same size in both sexes, and are 

 therefore larger in proportion to the size of the head in the female 

 than in the male. The inner apical angles of the elytra are nar- 

 rowly rounded. 



T. salicola. — Very stout, parallel, rather convex, somewhat shining, 

 deep black throughout; antenna; piceous; legs black, the X\hvx. toward base and 

 apex and tarsi paler; puliescence fine, very short and dense but dark in color 

 and only moderately conspicuous. i7«(// triangular, as wide as long, impressed 

 within the antennal prominences, finely punctate, sparsely so toward the mid- 

 dle, more densely scabro-reticulate and dull toward the sides ; antennse moder- 

 ate in length, the second joint as long as the next two; basal joint elongate 

 and contorted. Prothorax distinctly wider than the head, two-fifths wider 

 than long, the sides subparalltl and feebly arcuate in apical half, strongly con- 

 vergent from the middle to the base, the latter scarcely more than two-thirds 

 as wide as the apex, which is broadly, evenly arcuate; disk almost even, with 

 scarcely a trace of impressions. Etytra distinctly wider than long, two-fifths 

 longer and a little wider than the prothorax, impressed at each side of the 

 suture toward base, finely, closely punctate and somewhat scabriculate. Ab- 

 domen slightly narrower than the elytra, the sides parallel and feebly arcuate, 

 the sirrface coarsely and strongly reticulate, fineh', not densely punctate and 

 clothed moderately densely with longer and stiller pubescence. Length 2.8 

 mm. ; width 0.7-0.8 mm. 



Utah (Great Salt Lake). Hubbard and Scliwarz. 



