294 Memoirs on the Coleoptera 



Chlaenius sonomse n. sp. — Deep indigo-blue, the head generally green 

 between the eyes; form rather stout, very moderately convex, dull in 

 lustre, less dull anteriorly and throughout the black under surface, the 

 legs pale rufous; head four-fifths as wide as the prothorax, with moderate, 

 very prominent eyes; surface impunctate but somewhat creased, the 

 anterior impressions shallow but evident; mandibles and labrum rufous; 

 third palpal joint a little longer than the fourth, both much narrower than 

 the second; antennae slender, brown, the first three joints testaceous; 

 prothorax only slightly wider than long, the rounded sides distinctly 

 sinuate behind and parallel for some distance before the angles, which 

 are right and sharp; base transverse, as wide as the apex; stria deep, 

 broadly impressed; anterior impression feeble, with very few feeble 

 punctures, these traceable feebly along the stria toward base, more 

 visible but sparse basally, obsolete at the opaque sides; foveae shallow, 

 feebly punctate, traceable to the middle; scutellum black; elytra oblong, 

 very feebly inflated posteriorly, the sides nearly straight, very rapidly 

 rounded at the humeri, three-fifths longer than wide, almost twice as 

 wide as the prothorax; apex rapidly rounded, the sinus shallow but 

 distinct; striae rather fine, not coarsely impressed, the punctures strong 

 basally, very gradually fine though visible to the apex; intervals nearly 

 flat, the fine punctures moderately close, simple, the hairs rather coarse; 

 anterior male tarsi moderately dilated, the second joint exactly quadrate. 

 Length (cf' 9 ) 13. 0-15.0 mm.; width 4.9-5.9 mm. California (north 

 of San Francisco). Ten examples. 



Differs from leucoscelis in its slightly larger size, broader form aiid 

 larger head, very sharp basal thoracic angles, these being blunt at 

 tip in leucoscelis, and in the finer, less impressed and more equally 

 punctate elytral strise. 



Chlaenius recticollis n. sp. — General characters as in others of the 

 leucoscelis group; body narrower and more convex than in the preceding 

 or leucoscelis, similar in the rather dull lustre, the upper surface not 

 deep blue but green; legs rufous; head nearly similar but with much 

 larger prominent eyes; surface impunctate, the anterior impressions 

 nearly obsolete; third and fourth palpal joints equal in length; antennae 

 nearly similar; prothorax longer, about as long as wide, more parallel, 

 the sides evenly but less strongly arcuate, becoming more gradually 

 sinuate behind and parallel for some distance before the angles, which 

 are right, with blunt tips; surface sculptured nearly as in the preceding, 

 the foveae shorter and feeble, the scattered basal punctures bearing much 

 coarser and paler hairs; elytra parallel, broadly rounded at tip, three- 

 fifths longer than wide, almost twice as wide as the prothorax; humeri 

 rapidly rounded, less oblique at base than in sonomce; striae not much 

 impressed, distinct and rather strongly punctate, the punctures gradually 

 a little smaller posteriad though traceable easily to the tip; intervals 

 finely, not very closely punctate and with notably coarse pale hairs; 

 subapical sinus almost obsolete; apical half of the last ventral pale, 

 broadly angulate at tip in the male. Length (cf ) 13.0 mm.; width 5.25 

 mm. California (the locality unknown). 



