BEMBIDIIN^E 103 



with it at the margin; legs and epipleura rufous; head moderate, 

 with rather deep sulci; antennae rather short and thick, fusco-tes- 

 taceous, the medial joints twice as long as wide; prothorax one-half 

 wider than long, the well rounded sides becoming feebly sinuate for 

 a sensible distance before the prominent, right and sharp hind 

 angles; surface as in the preceding species of this subsection; elytra 

 one-half longer than wide, one-half wider than the prothorax, grad- 

 ually parabolic behind, the fine entire striae never more than feebly 

 impressed and having fine, moderately separated punctures, indis- 

 tinct behind apical third; foveae before basal and behind apical 

 third, the third interval but very slightly wider than the others. 

 Length (c? 9 ) 3.2-4.0 mm.; width 1.2-1.35 mm. California (San 



Diego). Six examples procax n. sp. 



27 Base of the prothorax slightly narrower than the apex. Moderately 

 elongate; head and lateral and basal part of the pronotum dull' and 

 alutaceous, black, with feeble viridi-seneous lustre; elytra nearly 

 black, moderately shining, each with a basal spot, prolonged on the 

 third and fifth intervals, a fascia rapidly attenuated inwardly near 

 basal third, another irregularly arcuate near apical third, the apex 

 and a spot on the third interval before the middle, pale subflavate; 

 under surface black, very shining, the abdomen with nubilous lat- 

 eral spots, the epipleura flavate, the legs darker, rufous; head well 

 developed, with notably prominent eyes; antennae very slender, 

 piceous, obscurely rufous basally, the medial joints nearly three 

 times as long as wide; prothorax three-fifths wider than long, the 

 sides strongly, subevenly arcuate, deeply sinuate behind, becoming 

 subparallel in basal fifth or sixth, evenly and moderately reflexed; 

 impressions feeble, subrugulose, the stria fine, not entire; foveae 

 broadly shallow, with a deep short linear impression, the carina longer 

 than the fovea and distinct; elytra one-half longer than wide, two- 

 fifths wider than the prothorax, parallel, with broadly arcuate sides; 

 striae equal, entire, fine, barely visibly impressed, the punctures fine 

 and close-set, traceable to the declivity; foveae at one-third and three- 

 fifths, the third interval moderately broadened. Length (9) 4.3 



mm.; width 1.65 mm. California (Sta. Cruz) operosum n. sp. 



Base of the prothorax never narrower than the apex. ... .28 



28 Body above the average of the subsection in size. Oblong, colored 

 throughout very nearly as in the preceding, but with the elytral 

 markings less sharply defined, sometimes rather nubilous; head well 

 developed, with prominent eyes and distinct sulci, moderately dull; 

 antennae similar in color, still longer, slender, the medial joints more 

 than three times as long as wide; prothorax larger, one-half wider 

 than long or less, the parallel sides evenly but less strongly arcuate, 

 gradually becoming feebly sinuate toward the right and sharp 

 angles; margins rather strongly reflexed; surface nearly as in the 

 preceding, both the linear part of the foveae and the carina longer, 

 the latter more than a fourth the total length ; elytra larger and rather 

 more than one-half longer than wide, similar in outline, a third to 

 two-fifths wider than the prothorax, the striae finer and wholly un- 

 impressed, the punctures fine, close, traceable to the declivity; sev- 



