BEMBIDIIN.E 27 



curvature; striae fine, impunctate, feebly impressed inwardly, almost 

 completely lost externally, the foveaa fine, at basal and apical third; 

 anterior tarsi ( 9 ) fully three-fourths as long as the tibiae, slender, 

 the basal joint as long as the next three. Length (9) 5.2 mm.; 

 width 2.0 mm. California (Los Angeles Co.). Mountains around 

 Sta. Isabel, LeConte trechiforme Lee. 



Form somewhat as in the preceding but slightly narrower, blackish- 

 piceous, shining, the abdomen with testaceous apex; head nearly 

 four-fifths as wide as the prothorax, a little narrower than an elytron, 

 the front depressed and flat between the sulci in the type, the orbital 

 puncture very near the eye; antennae slender, nearly as long as the 

 elytra, the medial joints about three times as long as wide, as in 

 the preceding fusco-testaceous, paler at base; prothorax barely a 

 fourth wider than long, as in the preceding, except that the oblique 

 sides behind are broadly and rather feebly sinuate to the angles, 

 which are somewhat obtuse, the apical less broadly blunt, the sides 

 broadly and strongly reflexed; surface nearly as in trechiforme; ely- 

 tra similar but not so broadly oval, less than one-half wider than the 

 prothorax, the striae similarly fine, very feebly impressed inwardly, 

 readily observable also laterally, everywhere with punctures, but 

 so minute as to require high power to reveal them, the foveae small, 

 at basal and apical third; anterior tarsi not quite so long as in trechi- 

 forme. Length (9 ) 4.9 mm.; width 1.8 mm. California (Redwood 

 Creek, Humboldt Co.). A single example fabrum n. sp. 



22 Basal angles of the prothorax distinctly more than right, very slightly 

 prominent and not blunt. Body elongate-oval, piceous, the elytra 

 paler, castaneous; abdomen pale, the rest of the under surface 

 darker brown, shining; head rather small, three-fourths as wide as 

 the prothorax, much narrower than an elytron, the sulci broad and 

 shallow, the juxtocular puncture large, rounded; antennae fuscous, 

 paler basally, very slender, not quite as long as the elytra, the medial 

 joints three times as long as wide; prothorax broader than in the 

 two preceding, evidently over a fourth wider than long, the base 

 wider than the apex as usual in this section; outline nearly as in 

 trechiforme, the oblique sides behind almost straight to the angles, 

 the apical angles blunt; surface nearly as in trechiforme; elytra as 

 in the two preceding and oval, but broader, less than one-half longer 

 than wide, the fine striae broadly and strongly impressed inwardly, 

 very distinct though scarcely impressed externally, having excess- 

 ively minute remote punctulation, wholly invisible on cursory view, 

 the foveae moderate, asperate, near basal and apical third; tarsi 

 slender. Length (9) 4.5-4.6 mm.; width 1.6-1.7 mm. Washing- 

 ton State (Spokane), Wickham obliviosum n. sp. 



Basal angles right, sharp at apex, though not or but slightly prominent . 23 



23 Sides of the prothorax rounded throughout to the slightly prominent 

 basal angles. Black, with bluish lustre, the elytra piceous; under 

 surface black, the epipleura and abdominal tip piceo-testaceous; 

 head small, though four-fifths as wide as the prothorax, the sulci 

 moderate; antennae slender, fuscous, paler basally, about as long as 

 the elytra, the medial joints about three times as long as wide; pro- 



