28 CALIFORNIA ACADEMY OF SCIENCES. 



arcuate at the sides; nuchal emargination one-tbird as wide as the disk, 

 strongly and evenly incurvate; anterior angles rather broadly rounded, basal 

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

 vex, punctured as in r/regalis. Eli/tra at base distinctly wider than the iDro- 

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

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

 ceptibly impressed along the very slightly elevated suture, one-fourth longer 

 than wide, nearly one-half longer than the pronotum, finely, feebly, sub- 

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

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

 surface finely, feebly, sub-asperately and densely punctate. Legs slender; 

 first joint of the posterior tarsi one-third longer thiin 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 incurvate, 

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

 median process is very short, fully as wide as the fimbriate 

 sides, its lateral extremities being in the form of strong 

 acute porrected teeth, and having the apex broadly roundly 

 and strongly emarginate throughout its width, its surface 

 being scarcely perceptibly impressed; the remaining seg- 

 ments modified nearly as in gregalis. 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 by its 

 sexual characters. The pronotum and elytra are sometimes 

 paler perhaps from immaturity. 



23— L. languida n- sp.— Form rather slender, depressed; head black; ab- 

 domen piceous, slightl}' paler at tip; pronotum dark rufo-fuscous; sides and 

 apex of the elytra broadly pale brownish-tlavate, central and basal portions 

 shaded darker, castaneous; legs pale flavate throughout; an teunre piceous-black 

 at base, becoming gradually rather pale testaceous toward the apex; pubescence 

 of the elytra and abdomen not very dense, fine and inconspicuous. Head 

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

 rounded; sides parallel and nearly straight; surface moderately convex, rather 



