176 Journal Nkw York En;. Soc. [VoI. ii 



sembles it very closely. The under surface of the thorax is very 

 densely punctulate, more so than the majority of specimens of 

 n'pariiis; it also differs by having fine golden punctures which 

 cover the head, thorax, sides and tips of the elytra. The legs are 

 pale. Length, .26 inch ^6.5 mm. 



Habitat, N. Y. (Catskills). 



E. fuliginosus Say. — Brassy-black ; head and thorax punctul- 

 ate ; elytra as sides punctate, disc smooth; beneath metallic 

 green. Length, .32 inch = 8 mm. 



Habitat, Can., N. Y. and westward. 



E. cicatricosus Lcc — Dull brassy, subelongate ; thorax and 

 elytra with sparsely and coarsely punctured, foveas purplish, inter- 

 spaces of elytra polished, scarcely punctured. Length, .28 inch = 

 7 mm. 



Habitat, Northern N. Y., Canada. 



E. riparius Linn. — Closely allied to E. ntscarins, but is some- 

 what more elongate in form, and the thorax is densely and finely 

 punctate beneath. Length, .28 inch = 7 mm. 



Habitat, Canada, westward to California and Alaska, also Asia 

 and Europe. 



E. ruscarius Say. (Plate III, Fig. 10.) — Dull brassy above, 

 metallic beneath ; fovere on elytra purplish ; head, thorax and 

 elytra finely punctured, the latter with a few polished elevations; 

 thorax coarsely punctate beneath. Length, .24 inch = 6 mm. 



Habitat, N. E. America. 



Blethisa Bo/i. 



Related to Elaphrus; mentum tooth short, bifid at tip; thorax 

 with lateral setigerous puncture ; head with deep lateral grooves ; 

 elytra striate with interstrial fovese. 



Synopsis of species. 

 Tliorax punctate above ......... Julii. 



Thora.x smooth above, quadrate quadricollis. 



Thorax subcordate, puuctate beneath .... multipunctata. 



B. Julii Lee. — Coppery black above ; thorax punctate, not 

 broad ; sides rounded, hind angles obtusely pointed ; elytra 

 broader than thorax striate, intervals 3 with five foveae, interval 

 5 with three fovere and the seventh interval more elevated than 

 the adjoining ones, but not interrupted; body black beneath. 

 Lengtii, .45 — .47 inch = 11 — 12 mm. 



Habitat, Nova Scotia, 



