BEMBIDIIN^E 51 



obtuse but very sharp and subprominent at the apex; surface nearly 

 similar; elytra rather more than one-half longer than wide, parallel, 

 but with more arcuate sides, more gradually rounded basally, more 

 gradually parabolic behind in about two-fifths of the length, two- 

 fifths wider than the prothorax; striae entire, rather more impressed 

 and more strongly punctate, the punctures smaller posteriorly but 

 distinct to very near the apical margin; foveae stronger, before two- 

 fifths and behind two-thirds. Length (cf ) 3.7 mm.; width 1.25 mm. 



Colorado. Levette collection segrotum n. sp. 



6 Striae entire 7 



Striae slightly abbreviated externally 15 



Striae greatly abbreviated, the seventh series very short 16 



7 Eastern species; prothorax subinflated anteriorly and strongly trans- 

 verse 8 



Western species; prothorax parallel, less transverse and quadrate 10 



8 Color castaneous, the elytra and legs rufous. Under surface black- 

 ish-piceous; head three-fourths as wide as the prothorax, the sulci 

 moderate, widely separated; antennae red-brown, four-fifths as long 

 as the elytra, the medial joints two ( 9 ) to nearly three (cf ) times 

 as long as wide; prothorax three-fifths wider than long, the sides 

 rounded anteriorly, oblique posteriorly, becoming sinuate only at 

 the angles, which are right and very sharp; surface smooth, with 

 fine abbreviated stria, moderately reflexed margins and very feeble 

 transverse impressions, scarcely punctate at the foveae, which are 

 small, moderately deep and at fully outer fifth, the carina short 

 and feeble; sides of the base strongly oblique; elytra oblong, parallel, 

 obtusely parabolic in apical third and barely two-fifths wider than 

 the prothorax; striae moderately impressed and with rather strong 

 and widely spaced punctures, gradually becoming obsolete at about 

 apical fourth, the striae coarse and deep, however, to the apex; 

 foveae at basal and apical third. Length (cf 9 ) 42 mm.; width 1.7 



mm. Maine inopinum n. sp. 



Color black, with dark rufous legs 9 



9 Body oblong-oval and markedly convex, shining; head three-fourths 

 as wide as the prothorax, with rather narrow and deep sulci; antennae 

 longer, black, three-fourths as long as the elytra, the medial joints 

 nearly three times as long as wide and almost equal to the subapical; 

 prothorax fully three-fifths wider than long, the rounded sides con- 

 verging behind the middle, becoming sinuate at the right and very 

 sharp angles; surface nearly as in the preceding, except that the 

 foveae are longer and deeper, linear, the carina feeble; elytra nearly 

 as in the preceding but more convex, with the striae feebly impressed 

 and finer, the punctures similarly limited but smaller and much less 

 widely separated, the apical punctureless parts of the striae much 

 finer and less impressed; foveae more or less near basal and apical 

 third. Length (cf 9 ) 3.8-4.4 mm.; width 1.5-1.7 mm. New York 



(Lake Champlain). Nine examples concolor Kirby 



Body smaller, more briefly oblong and rather less convex than in con- 

 color, shining, black, not metallic, the legs obscure rufous; head rela- 

 tively smaller, nearly three-fourths as wide as the prothorax though 



