Dec. 1894.I LeNC. tV BEUTr.XMUI.I.KK. Coi.KOl' I'. N. K. A M K K 



1:5 



PRELIMINARY HAND-BOOK OF THE 

 COLEOPTERA OF NORTH EASTERN AMERICA 



13v Chakles W. 1,knc, vV W.m. Dkuh wiiii i 1 k. 



(Continued from i'Ack 141.) 



Elaphrus Fabr. 



Elytra with variolate fovea?, not striate, head wider than the 

 thorax (except in ^. z'/VvV/zV) ; eyes large and prominent; thorax 

 without lateral seta; nientum tooth large, nearly as long as the 

 lateral lobes, emarginate. The species of this genus may be found 

 running on mud flats near streams or ponds during sunshine ; they 

 somewhat resemble CicinJcla in shape and BembiJiuin \w habit. 



Anterior tarsi of male with four joints dilated. 

 Elytra smooth, not punctured. 



Thorax coarsely and sparsely punctate beneath . Clairvillel. 



Thora.x finely and more densely punctate beneath. 

 Legs piceous ...... 



I.egfs pale ....... 



Elytra and thora.x sparsely and coarsely punctate . 

 Elytra punctate at sides, disc smooth 

 Anterior tarsi of male with three joints dilated. 



Thorax and elytra very closely and finely punctate. 



Thorax cordate finely and closely punctate beneath 

 Thoiax coarsely punctate beneath, shining 



E. Clairvillei Kiiby. — Bronzy black, foveit purplish ; shining, 

 head with very fine minute green punctures; thorax very sparsely 

 and finely punctured at the sides, disc smooth, impressions deep; 

 underside metallic bronze, thorax sparsely but coarsely punctate. 

 Length, .2,2 inch == 8 mm. 



Habitat, Can., X. Y. and westward. 



E. laevigatus Ztv.— Bronze, shining, legs piceous. thorax 

 finely and densely punctate beneath ; elytra not punctured, foveas 

 purplish. Length, .28 — .32 inch = 7 — 8 mm. 



Habitat, Michigan to California. 



E. olivaceus Z<r.— This species, is of rather less slender 

 form than hrvigatus, and the sculpture of the upper surface re- 



. la'vigatus. 



oli\aceu5. 



cicatricosus. 



fuliginosus. 



ripariu5. 

 ruscarius. 



