2i6 Memoirs on the Coleoptera 



the median stria fine; apical angles rather obtusely rounded at 

 tip; elytra somewhat more than one-half longer than wide, fully a 

 fourth wider than the pro thorax; outline obtusely ogival behind 

 the middle; striae fine, but little more impressed in the male, the 

 intervals virtually flat; scutellar puncture distinct; dorsal punctures 

 rather strong, about three in number; three basal joints of the 

 anterior male tarsi rather strongly dilated. Length (cf 9 ) 8.0- 

 9.3 mm.; width 3.1-3.6 mm. California (San Francisco to Sta. 



Barbara). Very abundant quadricollis Lee. 



Color pale testaceous though somewhat duller, and with brownish-black 

 elytra having the usual pale reflexed edges. Body larger, very 

 much broader, subalutaceous, the elytra more opaque; head scarcely 

 half as wide as the prothorax, but little longer than wide, the eyes 

 well developed and rather prominent; antennae slender, much less 

 than half as long as the body, the third joint somewhat evidently 

 longer than the fourth as a rule; prothorax notably transverse, a 

 third wider than long, the sides rounding anteriorly, straighter and 

 subparallel basally, the angles rather broadly rounded; transverse 

 impressions feeble but traceable, the fovese subobsolete; margins 

 strongly reflexed, deplanate basally; elytra scarcely one-half longer 

 than wide, a fourth wider than the prothorax, ogivally rounding 

 behind; striae fine, deeper in the male, sometimes broken or sub- 

 punctulate laterally; intervals feebly convex (d^), or perfectly flat 

 ( 9 ) ; subscutellar puncture distinct, the dorsal punctures three to 

 four; anterior male tarsi with the first three joints rather strongly 

 dilated. Length (cf 9) 8.2-10.0 mm.; width 3.6-4.2 mm. Cali- 

 fornia (San Francisco). Moderately abundant. [C. behrensi 



Mann.] ruficollis Dej. 



Color blackish-piceous, the prothorax generally a little paler or obscurely 



rufescent 9 



9 — Prothorax nearly as in the preceding, distinctly wider than long. ... 10 



Prothorax very nearly as long as wide; body more elongate 11 



10 — Body moderately convex, rather small, narrower than in quadricollis, 

 the elytra alutaceous in the male; head very evidently more than 

 half as wide as the prothorax, the eyes well developed and some- 

 what prominent; last palpal joint somwhat longer than the third, 

 slender but obtuse at tip; antennae very slender and filiform, half 

 as long as the body; prothorax nearly a fourth wider than long, in 

 outline and impressions almost as in the preceding, the apical 

 angles even more obtusely rounded; elytra slightly over one-half 

 longer than wide, a fourth to third wider than the prothorax, gradu- 

 ally obtusely ogival posteriorly; striae fine, coarser and deeper on 

 the declivity; intervals flat to just visibly convex; dorsal punctures 

 three; subscutellar puncture evident; anterior male tarsi moderately 

 dilated. Length (cf") 6.8-8.0 mm.; width 2.8-3.0 mm. California 



(Sta. Clara Co.). Four specimens minuens n. sp. 



Body stouter, more nearly as in quadricollis, but with the anterior parts 

 relatively smaller and the hind body more inflated; elytra rather 

 shining (cf'), strongly alutaceous (9 ); head small, elongate, scarcely 

 more than half as wide as the prothorax; antennae rather slender, 



