68 J. L. LECONTE, M. D. 



elytra and the lateral space between it and the margin is ferruginous. 

 The anteniuu in % are stout and as long as the body ; in the $ more 

 slender and a little more than half as long; the abdomen is ferrugin- 

 ous in the former, blackish with silvery pubescence in the latter, as in 

 T. vestitus. 



STR.1XGAL,IA Serv. 



S. 4leIioata. — Elongate, black; elytra testaceous, shining, sparsely punc- 

 tured, with the scutellar margin, and a short basal vitta blackish ; tips dehi- 

 scent, rounded; abdomen and legs ferruginous, tarsi dusky. Length 10 — 

 12 mm. 



California. The prothorax is more sinuate on the sides, and the 

 hind angles less prolonged than in our other species ; the form is as 

 slender as in the male of any species and is scarcely less so in the 9 

 than in the % . The antennae have no sensitive spaces and the last 

 ventral segment of the % is not excavated but merely feebly im- 

 pressed and broadly emarginate at tip. The antennae are inserted on 

 a level with the front margin of the eyes as in all our other species. 



liEPTlIRA Linn. 



li. rhodopilS. — Elongate, black, tliinly and finel}' pubescent, thorax 

 densely not finely punctured, longer than wide, gradually narrowed in front, 

 feebly rounded on the sides, hind angles small acute; elytra parallel, coarsely 

 ])unctureii, tif> subtruncate; feet bright ferruginous. Length fi.5 mm. 



California. Allied to mbaryentata, rujibasis, etc., but the protho- 

 rax is less finely punctured. 



OISERE.V Muls. 



O. qiiailrieallosa. — Leiulen-black, clothed with fine cinereous pubes- 

 cence; prothorax yellow with four elevated black tubercles, the outer ones 

 being nearer the base, a little wider than long, sparsely but coarsely punc- 

 tured, disc elevated at the middle near the base; elytra coarsely punctured, 

 with two elevased lines, basal margin yellow extending a short distance along 

 the suture and side margin, tip rounded ; legs and abdomen yellow, 1st and 2d 

 ventral segments each with a broad blackish band, tips of tarsi black. Length 

 .65 inch ; 11 mm. 



%. — With the last ventral segment broadly concave and emarginate; last 

 dorsal segment paojc«;ting beyond the pygidium, which is not retuse, but trun- 

 cate and subemarginate. 



5. — With the last ventral channelled and less concave; pygidium retuse 

 and i)rominent just in front of the tip, closely applied to the last ventral. 



Western part of California and Nevada. In one specimen three 

 ventral segments are dark, leaving onlv the -4th and 5th yellow. The 

 claws in this species are broadly appendiculate at base and the elytra 

 are rounded at the tip as in 0. Schaumii, to which it is closely allied. 

 It differs, however, by the prothorax wider, more rounded on the 



