BEMBIDIIN^E 63 



Elytral striae but slightly and generally only in part abbreviated 32 



31 Body black, highly polished, with very feeble subaeneous lustre; 

 under surface piceous, the legs rufous; head fully four-fifths as wide 

 as the prothorax and as wide as an elytron, the antennae slender, fus- 

 cous, gradually pale basally, as long as the elytra, the medial joints 

 not quite three times as long as wide; prothorax scarcely a filth wider 

 than long, rounded laterally in about apical half, oblique posteriorly, 

 the sides becoming gradually parallel near the right angles; surface 

 very smooth and convex, with distinct transverse impressions, the 

 stria between the two rather strong; foveae elongate-oval, very deep 

 and near the long and rather distinct carina; margins somewhat 

 finely reflexed; elytra one-half longer than wide and nearly three- 

 fifths wider than the prothorax, parallel, with broadly and feebly 

 arcuate sides, gradually parabolic behind; striae not definitely im- 

 pressed, consisting of rows of rather coarse, widely separated punc- 

 tures, becoming obsolete just behind the middle, the seventh row 

 equally strong but becoming obsolete at basal third; foveae at an- 

 terior and posterior third. Length (cf) 34 mm.; width 1.2 mm. 

 California (Sta. Ana Canon), Wickham calif ornicum Hayw. 



Body similar in coloration, but with the legs darker or more piceo-rufous, 

 the form more abbreviated; head larger, four-fifths as wide as the 

 prothorax and fully as wide as an elytron, the sulci similarly deep, 

 smooth and parallel; antennae shorter and thicker, not quite as long 

 as the elytra, blackish, piceous basally, somewhat thickened dis- 

 tally, the medial joints barely twice as long as wide; prothorax very 

 much shorter and strongly transverse, one-half to three-fifths wider 

 than long, the sides anteriorly still more strongly arcuate, very con- 

 vergent in about basal half, becoming parallel in basal fourth or 

 fifth, the angles right; surface throughout, as well as the foveae, 

 nearly as in the preceding, the basal margin somewhat rugulose; 

 elytra shorter, not quite one-half longer than wide and less than 

 one-half wider than the prothorax, gradually narrowed and strongly 

 rounded in fully apical two-fifths; striae wholly unimpressed, the 

 punctures rather less coarse, widely separated and becoming obso- 

 lete near three-fifths from the base, the seventh extending nearly 

 to the middle; foveae at basal and rather behind apical third. Length 

 (9 ) 3.4-3.5 mm.; width 1.25 mm. California (Hoopa Valley, Hum- 

 boldt Co.). Two examples innocuum n. sp. 



32 Form notably broad, the elytra only two-fifths longer than wide. 

 Body moderately convex, deep and polished black, without metallic 

 lustre, the legs piceous-black; head three-fourths as wide as the pro- 

 thorax, much narrower than an elytron, the sulci rather shallow; 

 antennae black, piceo-rufous at base, not as long as the elytra, the 

 medial joints between two and three times as long as wide; pro- 

 thorax two-fifths wider than long, the sides evenly and narrowly 

 reflexed, strongly and evenly rounded but becoming abruptly par- 

 allel and straight in about basal fourth, the angles right; base not 

 evidently narrower than the apex, transversely truncate; surface 

 sparsely punctulate at base, with very feeble impressions and 

 distinct subentire stria; foveae large, deep, oval and impressed, 



