The Pselaphid^ of North America. 65 



Elytra minutely and sparsely punctulate, rather convex, as 

 wide across the shoulders as the prothorax, and nearly one- 

 third wider across the middle; the length of the suture is one- 

 fifth greater than the width of the prothorax, the sides evenly 

 arcuate; the sutural interval is slightly dilated behind the 

 middle, the lines deep, discal ones half the length of the 

 elytra. Abdomen as long as the elytra, border strong, basal 

 carinse including one-fifth of the segmental width, very short 

 on the first and second segments and only indicated on the 

 third. Legs moderately strong. Sexual differences consist 

 of a lateral svvelHng of the posterior edge of the third ventral 

 segment, a transverse median depression of the base of the 

 fourth, and a transverse median depression before the middle 

 of the fifth; the last ventral is lozenge-shaped, longitudinally 

 ,carinate in the middle and punctured. 



Habitat. Florida, Virginia, Louisiana, Iowa. 



E. LONGicoLLis, Cascj. Pale brown, pubescence dense and 

 fine. Length 1.3 mm. 



Head as long as wide; tempora longer than the eyes, arcu- 

 ate; base slightly sinuate; vertex punctate at the side, foveas 

 small, mutually a Htttle more distant than either from the eye, 

 the arcuate groove deeper and wider in front; supra-antennal 

 tubercles large, angulate, and behind each is a small puncture. 

 AntenncB one-third longer than the head, the ninth and tenth 

 joints transverse, twice as wide as long, the last joint wider 

 than the tenth, as wide as long. Prothorax slightly narrower 

 than the head, widest near and before the middle, very slightly 

 sinuate anteriorly near the neck, posteriorly less convergent, 

 minutely slightly sinuate behind the middle, thence straight; 

 neck one-half, the base two-thirds of the pronotal width; disk 

 impunctate, convex, with an elongate puncture before the mid- 

 dle, and a slightly impressed sulcus one-fifth from the base, 

 connectmg the three small deep foveas. Elytra^ across the 

 shoulders, somewhat wider than the pronotum, sides slightly 

 arcuate, nearly parallel, disk a little longer than wide, slightly 



