28 CALIFORNIA ACADEMY OF SCIENCES. 



arcuate at the sides; nuchal emargiuatiou oue-third as wide as the disk, 

 strongly and eveulj' iucurv^ate; anterior angles rather broadly rounded, basal 

 slightly more broadly so; disk very evenly, moderatelv and transversely con- 

 vex, punctured as in (jreijalis. Eli/(ra at base distinctly wider than the pro- 

 thorax and slightly wider than the head; sides nearly parallel, feebly arcuate; 

 together broadly, roundly and moderately sinuate behind; disk scarcely per- 

 ceptibly imi:)ressed along the very slight!}' elevated suture, one-fourth longer 

 than wide, nearly one-half longer than the pronotuiu, finelj', feebly, srib- 

 asperately, evenly and not densely punctate. Abdomen rather narrow, at 

 base distinctly narrower than the elytra; sides parallel and feebly arcuate; 

 surface finely, feelilj', sub-asperately and densely punctate. Letjs slender; 

 first joint of the posterior tarsi oue-third longer than the second, distinctly 

 shorter than the fifth. Length 3.3 mm. 



Santa Cruz Co., 5; Santa Clara Co., 3; San Mateo Co., 3. 



Described from the male; the fifth segment is broadly and 

 feebly emarginate at apex, the sides of the emargination 

 being extremely strongly convergent and feebly incnrvate, 

 each having a fringe of nine closely-placed spinules; the 

 median process is verj' short, fulh^ as wide as the fimbriate 

 sides, its lateral extremities being in the form of strong 

 acute porrected teeth, and having the apex broadly roundh' 

 iind strongly emarginate throughout its width, its surface 

 being scarcely perceptibly impressed; the remaining seg- 

 ments modified nearly as in grcgalis. The species resembles 

 the preceding to such an extent that great care is requisite 

 in its identification; it is, however, distinguishable by its 

 narrower head with straighter sides and much more narrowly 

 rounded basal angles, by its longer elytra, which are also 

 decidedly more sparsely and feebly punctate, and l)y its 

 sexual characters. The prouotum and elytra are sometimes 

 paler ])erhaps from immaturity. 



23— Ij, languida n- sp. — Form rather slt'iuler, depressed; head black; ab- 

 domen piceous, slightl}' paler at tip; 2>ioni)tum dark rufo-fuscous; sides and 

 apex of the elytra broadly palo brownish-llavate, central and basal jjortions 

 shaded darker, castaneous; legs ])a]ellavate tlirouglinnt ; antiiiiua^ |iieeous-l)lack 

 at base, becoming gradually rather pale testaceous towanl the apex; puliescence 

 of the elytra and iibdomen not very dense, lii:e and inconspicuous. Head 

 nearly as wide as long; base truncate in the middle, angles moderately broadly 

 I'ounded; sides parallel and nearly straight; surface moderately convex, rather 



