The Pselaphid^ of North America. 63 



funicle half as wide, transverse, ninth and tenth longer and 

 wider, transversely oval; eleventh larger, little longer than 

 wide, annulated, acuminate. Last joint of the maxillary palpi 

 short, conical. Prothorax as wide as the head, widest on the 

 anterior third, about one-sixth wider than long, sides arcuate 

 throughout, more so anteriorly, base continuously and slightly 

 arcuate with the sides, neck one-half as wide as the pronotal 

 width and two-thirds as wide as the base; disk slightly convex, 

 with an oblong fovea before the middle, and one-third from the 

 base, is a deep, angulated, sulcus connecting the large, pubes- 

 cent, fovege. Elytra, across the high shoulders, as wide as 

 the prothorax, sides slightly and arcuately divergent, the disk 

 nearly quadrate, not very convex; the sutural lines are close, 

 nearly parallel, discal Hues half the elytral length, emerging 

 from the outer basal fove^e, which are large and pubescent; a 

 third intermediate basal puncture is also present. Abdomen 

 narrower at the base than the elytra, wider across the third 

 segment, the first two basal segments with short divergent 

 carinas. Legs strong, the tibige of the male dilated on the 

 discal half. The third ventral in the male is sinuate in the 

 middle, tumefied at the sides of the posterior Hmit; beyond 

 this, on each side, is a long, externally arcuate spine, contigu- 

 ous to the fourth segment, which is transversely impressed at 

 the base; the fifth ventral has a transverse impression in the 

 middle; last segment punctate and with a median carina. 



Habitat. Illinois, Louisiana, Georgia. 



E. sExuALis, Casey. Brown, legs paler, pubescence thin, 

 very long, erect, coarse; surface polished, with a few feeble, 

 minute, punctures. The general form is that of E. s-pinifer. 

 Length 1.6 mm. 



Head large, httle broader than long, eyes large, moderately 

 prominent, tempora as long as the eye, not prominent, con- 

 vergent; base strongly sinuate, the pubescent fovese three- 

 fourths more distant than either from the eye, connected by a 

 deep, paraboHc sulcus passing from the tempora through the 

 foveas to the front, where it is wider and deeper ; intermediate 



