754 Coleopterological Notices, VI. 



this is rather closely punctured .ind pubescent. The epistoma is 

 short, the suture distinct and broadly angulate, the basal three- 

 fifths corneous and sculptured like the adjoining front, the apical 

 two-fifths abruptly thin, transparent and devoid of sculpture. 



5. T. salicola Lee. — Trans. Am. Ent. Soc, V, (1875), p. 174. 

 Nearly similar to the last in general form and coloration, but 



with larger and more convex eyes and straight parallel tempora 

 behind them, the clypeus longer, less sculptured, divided by a 

 feebler and more arcuate suture, the apex of the thin portion 

 narrowly grooved. Prothorax distinctl}' larger Avhen compared 

 with tlie head and more broadly rounded at the sides anteriorlv. 

 Elytra covering virtually the entire abdomen in the male, parallel, 

 rather flat, one-half longer tlian wide, three-fourths wider than the 

 prothorax, alutaceons, the pubescence somewhat sparse. Under 

 surface of the hind bod\' intense black throughout, the legs pale 

 testaceous. Length 3.0 mm.; width 0.9. 



Utah, — Cab. LeConte. The male has the fifth ventral not quite 

 as long as the fourth, broadly truncate at apex, the truncature 

 broadly and feeby sinuate in the middle. The under surface of 

 the hind body in tricolor is very pale throughout, the abdomen 

 being rather more closely punctate than in salicola, and, as usual 

 in this section, there are two longitudinal series of long tactile 

 setffi, two setae to each segment. The dusky tip of tlie el^'tra, re- 

 ferred to in the original description, is due to the black apex of 

 the abdomen by diaphaneity; in the following species, however, 

 the ti}) is really l)lack. 



6. T. deiisuf>» II. sji. — Narrow, snlxk'pii'ssfd, ()])a(|ue tlirouglioiit above, 

 the abdomen sliininji, dark rufous, tlie under surface of the hind body deep 

 black; pygidium black; elytra with a black band just behind the middle 

 ■which is expanded posteriorly at the side margins, joining a narrow black 

 apical band; pubescence very short, decumbent, even, moderately dense and 

 not very conspicuous. Head subcjuadrate, not (juite as long as wide, truncate 

 and medially subcanaliculate at base, the angles rounded; tempora long, bo- 

 coming straight and jiarallel for some distance behind the eyes, the latter 

 moderately small, convex, more prominent than the tempora; disk finely, 

 granularly punctate; antenn;c rather thick, very feebly incrassate, iuUy one- 

 half longer than the head, the eleventh joint as long as the two preceding com- 

 bined, deeply constricted behind the middle, the basal lobe as usual thicker. 

 Proihornx somewhat small, much narrower than the head, noticeably wider 

 than long, widest and rather strongly rounded between apical third and fourtli, 

 the sides thence oblique and straight, becoming parallel only just before the 



