CALIFORNIA ACADEMY OF SCIENCES. 301 



proportion to the width of the segment. Each dorsal seg- 

 ment has at base two short lateral carinre from "the trans- 

 verse ridge; the median carina is entirely obsolete. 



T. linearis u- sp. — Very slender; bodj' black tbroughovit, legs piceoiis, 

 tibiiB toward tip aud tarsi pale testaceous; anteunas fuscous, slightly paler 

 toward base; iategutneuts polished; pubasceace very Hue, moderately deuse, 

 densest on the elytra, more sparse but longer, more erect and coarser on the 

 abdomen, very pale flavo-cinereous. Head as wide as long; sides convergent 

 and arcuate behind the eyes; occiput rather strongly convex, finely, evenly 

 and rather den ely puuctate; antennns slender, slightly longer than the head 

 and prothorax together, second and third joints very slender, equal in length 

 and slightly shorter than the first, fourth scarcely more than one-half as long 

 as the third, longer than wide, tenth slightly wider than long, eleventh as 

 long as the two preceding together, very obtuselj' rounded at tip; front very 

 feebly impressed in the middle between the eyes. Prothorax widest at scarcely 

 one-third its length from the apex where it is slightl}'^ wider than the head 

 and just visib'y wider than long; sides moderately convergent anteriorly aud 

 distinctly arcaate, less convergent posteriorly and nearly straight; base very 

 slightly narrower than the disk and very slightly wider than the apex, broadly 

 and rather strongly arcuate; apex verj' feeblj'' arcaate; basal angles obtuse 

 but not rounded; disk tra jsversely convex anteriorly, narrowly and feebly 

 impressed in the middle posteriorly, very finely aud moderately densely 

 puuctate. Elytra at base distinctly wider than the pronotum; sides jjarallel 

 and feebly arcuate; apical angles slightly produced, acute; together quadrate, 

 slightly incurvate at apex; slightly emarginate at the suture; disk distinctly 

 longer than the pronotum, impressed on the.suture near the scutellum, feebly 

 convex, very finely, feebly, evenly and rather sparsely puuctate; punctures 

 slightly asperate, forming indefinite and broken transverse rows. Abdomen 

 distinctly narrower than the elytra, scarcely wider than the pronotum; sides 

 to the apex of the sixth segment parallel and feebly arcuate; punctures, car- 

 inas and border nearly as in experia. Legs very sleudcr; first foar joints of 

 the jDosterior tarsi decreasing uniformly and r.ipidly in length, first much 

 longer than the second. Length 3.3-3.5 mm. 



California (Yonntville, Napa Co., 1: Mt. Diablo, 1; 

 Booneville, Mendocino Co., 1). 



The type is a male; the sixth segment is broadly and 

 moderately bilobed at apex, the notch being triangular, very 

 small in proportion to the size of the segment, and about 

 three times as wide as deep. The species is easily distin- 

 guished from the preceding by its more slender form and 

 by the punctuation, which is about equally dense and strong 

 on the elytra and pronotum. 



