18'2 JoLRXAL Nkw York Ent. Soc. [Vim.ii. 



P. elongatus Lcc. — Form elongate, not as broad as /'. depres- 

 siis ; black with blue margin; humeral carina rather long, and 

 curved outwards in front ; hind tibic-e and tarsi less slender than 

 in depressits, the former in the male are densely pubescent on the 

 inner side near the tip. Length, .92 — i.i inch = 23 — 26 mm. 



Habitat^ New Jersey, southward and westward. 

 Scarites Fabr. 



Form narrow ; sides of elytra parallel, rounded behind ; hind 

 angles of thorax wanting ; elytra without carina ; maxills slightly 

 hooked at tip. 



S. subterraneus Fabr. Plate IV, Fig. 5 — Wholly black, shin- 

 ing ; elytra striate ; the stria; are more or less distinct. Length, 

 .60 — .80 inch = 15 — 20 mm. 



Habitat^ N. E. America, southward and westward. 



var. substriatus Hald. — Differs from siibteyraiiciis by being 

 much larger. Length, i — 1.20 inch = 25 — 30 mm. 



Habitat, Ohio, Wise. (Western and Southern States). 

 Dyschirius Bon. 



Size small ; thorax globular ; palpi dissimilar in the sexes, the 

 terminal joint more dilated in the male, excavate beneath with a 

 large sensitive space ; tarsi slender in both sexes ; mandibles fiat 

 and arcuate. 



Live in wet sandy places, where they dig holes ; they may be 

 dislodged by pouring water oyer their burrows or may be readily 

 captured towards evening when they leave their hiding places. 

 Synopsis of species. 



Klytra with three stri;e or interspace tripunctate. 



Epistoma broadly marginate, bidenlate ; basal stria of elytia absent. • 



l''roiit with slight transverse impression. 

 Elytral strire posteriorly distinct. 



Thorax globose, legs black .... nigripes. 



Front with deep transverse impression. 



l'"Iynal stripe extending to base, obliterated behind. Thora.x globose. 

 Elytial strire feeble ; antennrc and legs biack . aeneolus. 



Elytra! slri;c stronger ; base of antennse and legs rufous, longuSus. 

 Thorax transversly ovate; legs and antennre rufous, globulosus. 

 I'-iylral strioe abbreviated anteiiorly ; antenna- and tip of- 

 elytra, and legs rufous. 

 Thorax transverse, ovate, elytral stria: strongly 



punctate haemorrhoidalis. 



Thorax quadrate globose ; elytral stria- feebly 



punctate terminatus. 



