BEMBIDIIN^: 161 



the middle; punctures strong, widely separated in some series, closer 

 in others; fovese near basal fourth and apical third. Length (cf ) 

 2.S mm.; width 1.15 mm. California (Sta. Barbara), Dunn. The 



type is probably immature to some extent disparile n. sp. 



1 1 Elytra without paler posterior maculation 12 



Elytra with distinct posterior maculation 13 



12 Body rather narrow and convex, feebly ventricose, polished, deep 

 black throughout, the legs obscure rufous; head unusually developed, 

 fully as wide as the prothorax, the eyes moderate in size but very 

 prominent, the strongly converging sulci deep; antennae three-fourths 

 as long as the elytra, black throughout, thicker distally than basally, 

 the medial joints obconic and distinctly less than twice as long as 

 wide; palpi blackish; prothorax barely visibly wider than long, the 

 base distinctly narrower than the truncate apex and three-fourths 

 the maximum width; sides moderately rounded anteriorly, oblique 

 in rather more than basal half, gradually sinuate basally, the angles 

 right; anterior impression only medial and feeble, the posterior 

 sulciform, entire, punctate; foveas deep, elongate-oval, adjacent to 

 the distinct carina; elytra one-half longer than wide, fully three- 

 fifths wider than the prothorax, parallel, with arcuate sides and 

 rapidly rounded humeri; striae coarse but not impressed, except 

 feebly suturad, obsolete in posterior fourth internally, to half ex- 

 ternally; punctures coarse, deep and well separated; foveae strong, 

 at fourth and four-sevenths. Length (cT) 2.7 mm.; width i.o mm, 

 California (Gilroy Hot Springs, Sta. Clara Co.). A single example. 

 Resembles vile in general form and facies, differing greatly of course 

 in the frontal sulci, which are parallel in vile, as noted from an in- 

 spection of the type ampliceps n. sp. 



Body much stouter, strongly convex, polished, deep black throughout, 

 the legs piceo-rufous; head but slightly though evidently narrower 

 than the prothorax, the eyes larger than in ampliceps but less prom- 

 inent; sulci very deep, the intermediate surface strongly convex; 

 antennae filiform, blackish, obscurely rufous at base, fully three- 

 fourths as long as the elytra, the medial joints between two and three 

 times as long as wide; prothorax scarcely a fifth wider than long; 

 base narrower than the truncate apex though four-fifths the maxi- 

 mum width, widest near apical third, the sides moderately reflexed, 

 evenly rounded, gradually converging behind and broadly sinuate, 

 becoming gradually parallel in about basal sixth; anterior impression 

 only medial but distinct, obtusely impressed, the posterior shallow, 

 punctured laterally, obsolescent medially; median stria distinct, 

 subentire; foveae deep, oval, adjacent to the carina, which is well 

 developed though close to the edge; elytra one-half longer than wide, 

 fully three-fifths wider than the prothorax, parallel, with arcuate 

 sides and very gradually rounded humeri, becoming transverse for 

 only a very short distance near the thoracic base; striae rather fine, 

 not impressed, except feebly toward the suture, obsolete at a slight 

 distance behind the middle; seventh series only visible in basal 

 third; punctures fine, well separated; foveae small, at fourth and 

 T. L. Casey, Mem. Col. VIII, Oct. 1918. 



