BEMBIDIIN/E 57 



deeply impressed, not coarsely, rather closely punctate, the seventh 

 obsolescent, barely traceable throughout the length; foveae near 

 basal and apical third; epipleura testaceous to black. Length (cf 9 ) 

 7.08.0 mm.; width 2.83.0 mm. California (coast regions north 

 of San Francisco). Abundant. Thirteen specimens. 



haplogonum Chd. 



Legs testaceous, the femora piceous-black, nubilously pallid at tip. 

 Body much smaller and narrower, similar in coloration; head and 

 antennae nearly similar, the latter more slender and no.t quite so 

 long, the eyes less prominent; prothorax shorter, almost one-half 

 wider than long, the oblique sides posteriorly becoming more sinu- 

 ate, parallel for a short distance before the angles, which are right 

 and sharp; surface with very feeble impressions and incomplete 

 stria, the foveae with the deep part longer, more oblique and less 

 well defined, the carina very short and fine; margins well reflexed 

 basally, finely so apically; elytra similar but narrower, rather more 

 than three-fifths longer than wide, one-half wider than the prothorax, 

 the striae and punctures finer, less impressed, the seventh more dis- 

 tinct; foveae similar. Length (9) 6.4 mm.; width 2.25 mm. Cal- 

 ifornia (Marin Co.). A single example marinicum n. sp. 



22 Prothorax notably short and transverse 22 



Prothorax but slightly transverse 23 



22 Form broadly suboblong, very moderately convex, shining, the upper 

 surface black, with greenish lustre, the elytra obliquely pale at base 

 and with a transverse suturally sinuate fascia behind apical third, 

 not prolonged on the suture; under surface black, the epipleura par- 

 tially pale, the legs testaceous; head moderate, much narrower than 

 the prothorax or an elytron, the eyes only moderately prominent; 

 antennae slender, blackish, testaceous basally, the medial joints fully 

 three times as long as wide; prothorax one-half to three-fifths wider 

 than long, the oblique sides posteriorly broadly and but just visibly 

 sinuate toward the angles, which are obtuse but with their apex 

 minutely acute and prominent; base arcuate; posterior impression 

 broad and distinct; margins strongly reflexed basally, finely api- 

 cally as usual in this section; foveae rugulose, large, sublinear, deep, 

 nearly one-fourth the total length, the carina very fine; elytra ob- 

 long, well rounded behind, parallel, one-half wider than the pro- 

 thorax, the striae rather fine, not impressed, except internally, rather 

 finely punctate, the punctures widely separated; seventh stria barely 

 traceable as a series of very remote and minute punctulation; foveae 

 near basal third and apical fourth. Length (cf 9 ) 6.4-7.0 mm.; 



width 2.4-2.8 mm. Michigan (Marquette) transversale Dej. 



Form somewhat as in transversale but with still shorter prothorax and 

 longer elytra, the latter almost entirely ochreous, with a small faint 

 post-scutellar cloud on each, and with a very faint nubilous dark 

 fascia just behind the middle, prolonged somewhat posteriorly at 

 the suture, the apex also faintly blackish; epipleura and legs testa- 

 ceous; head nearly as in the preceding, the antennae colored simi- 

 larly and very slender, longer, four-fifths as long as the elytra; 

 prothorax two-thirds to three-fourths wider than long, the arcuate 



