BEMBIDIIN/E 217 



4 Thoracic carinae short as in the two preceding; antennae thick; elytra 

 without interstrial punctures. Body rather narrow and somewhat 

 more convex, similar in color and sculpture to the two preceding; 

 head fully three-fifths as wide as the prothorax, the eyes rather small, 

 moderately prominent; antennae short, about half as long as the ely- 

 tra, fusco-testaceous,, the fifth joint one-half longer than wide, the 

 tenth on the flattened side but very slightly longer than wide; pro- 

 thorax three-fifths wider than long, the sides strongly rounding 

 anteriorly and inwardly to the apex, which is much narrower than 

 the base; basal angles a little more than right; surface with the scat- 

 tered punctures very minute; posterior impression indefinite, though 

 a little stronger than in the preceding, the lateral impressions very 

 broad and shallow; elytra fully three-fifths longer than wide, two- 

 fifths wider than the prothorax, gradually parabolic behind, parallel, 

 with very feebly arcuate and well reflexed sides and rather broadly 

 rounded humeri; the three inner striae are rather distinctly but irreg- 

 ularly impressed, the next two very fine to barely traceable; foveae 

 near basal sixth and apical fourth. Length 2.6 mm.; width i.o mm. 



Europe *nana Gyll. 



Thoracic carinae longer, nearly a fourth the total length of the pronotum; 

 antennae longer and less thickened; elytra with fine scattered inter- 

 strial punctures, somewhat less minute than those of the pronotum. 

 Body stouter, feebly convex, more ventricose, black, the legs dark 

 rufous, moderately shining; head three-fifths as wide as the pro- 

 thorax, the eyes small but prominent; antennae evidently more than 

 half as long as the elytra, dark testaceous, the fifth joint nearly 

 twice as long as wide; prothorax short, three-fourths wider than 

 long, rounded at the sides anteriorly as in nana, but not so much 

 inwardly at apex, the latter sinuate and distinctly narrower than the 

 base; sides posteriorly very broadly and feebly sinuate, the angles 

 right and sharp; impressions very moderate, the median stria distinct, 

 the lateral basal impressions broad and somewhat deep, opaque; 

 elytra one-half longer than wide, parallel, with arcuate and rather 

 narrowly reflexed sides, fully two-fifths wider than the prothorax, 

 very gradually ogival from but slightly behind the middle; six striae 

 are distinct and rather deeply impressed, the outermost feeble, the 

 inner rather evidently but irregularly punctulate; foveae near one- 

 sixthand two-thirds. Length 2.5-2.7 mm.; width i.o-i.i mm. Cal- 

 ifornia (Lake Tahoe; also Humboldt and Siskiyou Cos.). Twelve 



examples falli Hay w. 



5 Prothorax larger, more than three-fourths as wide as the elytra. . . .6 



Prothorax smaller, about three-fourths as wide as the elytra 8 



6 Antennae short, scarcely more than half as long as the elytra. Body 

 oblong-suboval, rather depressed and shining, though with coarse 

 micro-retjculation, black, the legs piceous; head three-fifths as wide 

 as the prothorax, the eyes very moderate in size, somewhat prom- 

 inent; antennae fuscous, the medial joints one-half longer than wide, 

 the third narrower and distinctly longer than the second; prothorax 

 three-fifths wider than long, wider at base than at the feebly sinu- 

 ate apex; sides moderately rounded anteriorly, slightly oblique and 



