BEMBIDIIISLE 99 



Sides rounded virtually to the base, very faintly sinuate only at the 



angles 22 



21 Body oblong-oval, only moderately convex, rather shining, the an- 

 terior parts bright viridi-subaeneous and only slightly alutaceous; 

 elytra aeneo-piceous, marked rather indefinitely with paler as de- 

 tailed under extricalum; legs rufous, the epipleura flavo-piceous, the 

 under surface black; head fully three-fourths as wide as the pro- 

 thorax and nearly as wide as an elytron, with rather prominent eyes, 

 the sulci not very broad and somewhat deep; antennae rather thick, 

 piceous, rufous beneath toward base, the medial joints obconic and 

 slightly more than twice as long as wide; prothorax two-fifths wider 

 than long, the base slightly wider than the apex, the sides parallel, 

 broadly and very moderately rounded, gradually oblique and broadly 

 sinuate basally. rather finely reflexed, the angles sharp and nearly 

 right; stria very fine, subentire, the impressions very faint; foveae 

 deep but small, linear, the carina almost twice as long, strong, some- 

 what over one-fourth the total length; elytra oblong, parallel, barely 

 one-half longer than wide, less than one-half wider than the pro- 

 thorax, rounded behind; striae entire, rather fine, barely visibly im- 

 pressed, very fine behind, the punctures fine, moderately separated; 

 foveae near basal and apical third. Length (cf ) 4.4 mm.; width 1.6 



mm. California (San Diego) consentaneum Lee. 



A Almost similar to the preceding but somewhat narrower and more 

 elongate, the head equally as well developed but with less prom- 

 inent eyes, also broader and deeper anterior part of the sulci; pro- 

 thorax nearly similar but barely two-fifths wider than long; ely- 

 tra more elongate, nearly three-fifths longer than wide and more 

 gradually rounded behind, the striae finer and less distinctly punc- 

 tate, except basally, the foveae more widely separated. Length 

 (cf 9 ) 3.8-4.7 mm.; width 1.4-1.72 mm. California (Sta. Bar- 

 bara), Dunn barbarae n. subsp. 



Body much broader, nearly similar in color and lustre; head larger, with 

 more prominent eyes, wider than an elytron, the sulci broader and 

 shallower; antennae nearly similar in length and coloration but 

 thicker, the medial joints more strongly obconic, more than twice 

 as long as wide; prothorax larger and much broader, one-half wider 

 than long, widest slightly before the middle, the finely reflexed sides 

 much more broadly and evenly rounded, more rapidly oblique 

 basally, becoming almost parallel in basal fifth or sixth; stria more 

 nearly entire, the impressions subobsolete; foveae and carina similar 

 in size and proportions; elytra shorter, barely one-half longer than 

 wide and only a third wider than the prothorax, more obtusely 

 rounded behind; striae very fine, similarly unimpressed and even 

 more finely and less closely punctulate, the third interval slightly 

 wider than the others; foveae before basal and behind apical third. 

 Length (9) 4.2 mm.; width 1.5 mm. California (eastern shore of 



San Francisco Bay) derisor n. sp. 



22 Eyes only moderate in size but very prominent 23 



Eyes somewhat larger as a rule, but only moderately prominent 24 



23 Form elongate-suboblong, moderately convex, black, alutaceous and 



