BEMBIDIIKME 9 



medial lateral seta well developed ; the prothorax is about a fourth 

 wider than long; in lacustre it is not quite one-half wider than long. 



Bembidion levettei n. sp. Body larger and more broadly oblong-oval 

 than in lacustre, black, dull bronze above; legs black, the femora palles- 

 cent basally; antennae black throughout, nearly as in lacustre: head as 

 in the latter and similarly developed, fully three-fourths as wide as the 

 prothorax, moderately alutaceous; prothorax between a third and fourth 

 wider than long, otherwise nearly as in lacustre, except that the sides are 

 more broadly rounded and less prominently so medially; elytra parallel, 

 somewhat over one-half longer than wide, rather more than one-half 

 wider than the prothorax, very obtusely rounded at tip, the fine striae 

 finely punctate, the third and fourth similarly sinuate subbasally; cha- 

 grined parts not greenish as in lacustre, but of the same bronze tint as 

 the rest of the surface, the latter dull, somewhat shining along the third 

 interval and the fourth basally and behind the middle, the latter area 

 extending obliquely to the seventh stria. Length (cf ) 5-9 mm.; width 

 2.4 mm. Colorado. Levette collection. 



The large size, still broader form and longer, relatively narrower 

 prothorax, will readily serve to distinguish this species from lacus- 

 tre, of which I have a typical representative taken by Wickham at 

 Bayfield, Wisconsin. 



There is at hand another example, labeled "Cal.," which belongs 

 near lacustre, but with the elytral striae along the median part of 

 each elytron much contorted and broken as in opaciceps and with 

 similarly opaque head, but the latter is somewhat larger than in 

 opaciceps though not quite so large as in lacustre, and the shorter, 

 broader elytra are very obtusely lobed at apex as in the latter; the 

 prothorax is narrower and less transverse. I have placed this 

 specimen with the type of opaciceps for the present. 



The following species belongs near hesperium Fall, but is broader 

 and more convex:* 



Bembidion binarium n. sp. Oblong-oval, convex, polished throughout, 

 black, the upper surface bright aeneous, the head bluish, the elytra vio- 

 laceous suturally ; legs piceous, the femora testaceous, black distally, the 

 antennae long and slender, black, with the basal joint pale beneath, the 

 mentum tooth short and sinuato-truncate; head scarcely at all alutace- 

 ous, nearly three-fourths as wide as the prothorax, the latter two-fifths 

 wider than long, slightly wider at base than apex, widest at the middle, 

 with evenly rounded sides, deeply sinuate toward the very acute and 

 everted basal angles; surface polished, convex, without trace of medio- 



* The name hesperium not correctly hesperum as written by the author, or by the 

 present writer in the case of Callidium hesperum comes very near to being preoccu- 

 pied by hesperus Cr., a species inhabiting the Azores. 



