The Pselaphid^ of North America. 59 



E. FOssuLATUS, Brcud. Dark brown, polished, sparsely 

 pubescent. Length i mm. Plate XIL, Fig. 124. 



Head wider than long, or, excluding the eyes, as wide as 

 long; eyes prominent, tempora nearly straight, convergent 

 toward the base, neck, as wide as the front; sides anteriorly, 

 very slightly sinuate, convergent to the supra-antennal tuber- 

 cles; frontal space between the tubercles depressed; frontal 

 margin, a thin, convex ridge; disk uneven, the impression very 

 deep, the fovea; circular, mutually' as far apart as either from 

 the eye; the grooves are wide, parallel, ending in the large 

 frontal depression; intervening space high, convex between the 

 fovecC. AntcnncE from the first to the tenth joint, as long as 

 the head; first and second joints respectively as large as the 

 tenth and ninth, intervening jointsequal, transverse, very small, 

 eleventh ovoid-acuminate, half as wide as the entire front. 

 Prothorax wider than the head and wider than long, sides 

 slightly sinuate near the large lateral fovete, disk minutely 

 punctulate; median sulcus fusiform, nearly reaching the large, 

 triangular fovea, which is connected with the lateral ones by a 

 nearly straight, transverse sulcus about one-third of the pro- 

 notal length. £,Iytra, with high and prominent shoulders, the 

 humeral width equal to the length of the suture and slightly 

 greater than that of the prothorax; sutural lines very deep; 

 three basal punctures; discal lines half the length, deep, and 

 broadly impressed near the humeri. Abdomen longer than the 

 elytra, the first and second segments with minute carin^e. 



Habitat. Illinois. (Peoria). Differs from E. ■pumiliis in 

 the deep sculpture of the head and in the long discal lines of 

 the elytra. 



E. PUMiLus, Lee. Yellowish brown, pubescence thin, fine 

 and short. Length 0.7 mm. 



Head small; eyes large, prominent; tempora as long as the 

 eye, not prominent, interocular surface rough, abruptly elevated 

 far above the eyes, nearly fiat above, narrower anteriorly; base 

 sinuate, occipital fove« minute, mutually one-half more distant 

 than either from the eye and connected by a slightly impressed 



