The Pselaphid.^ of North America. 31 



val punctured, discal lines abbreviated before the middle. 

 Abdomen impunctate, convex. Legs dark red. 



$ antennae with the third joint not dilated, longer than the 

 second, tenth obconical, usually not enlarged, the clypeus con- 

 tinuous with the declivity of the front. 



Habitat. Georgia. 



This is the representative of another series of species, 

 having the occipital foveas pubescent, the tenth joint not com- 

 pressed, large, without a basal fovea. To this group belong 

 B. nigricans, B. triangulifer, B. dcnticornis and B. ccpha- 

 lotes. 



B. CEPHALOTES, Cascj. Piccous-black, legs and antennce 

 red; pubescence long, surface poHshed. Length, 2 mm. 

 Plate X., Fig. 90. Plate XII., Fig. 132. 



Head quadrangular, with the corners rounded, somewhat 

 wider than long, occiput convex, sometimes bearing in the 

 middle a very faint, short, carina: the e\'es are small, promi- 

 nent, tempora arcuate; the occipital fovece are pubescent, the 

 connecting groove circumambient in the ?, obsolete in -front in 

 the $, space between them polished, smooth, with a faint cen- 

 tral impression, the separated margin broad, coarsely and 

 sparsely punctured in front, where, in the male, it overhangs 

 the clypeus; in the middle it is declivous and finely notched, 

 the declivous part with a central emargination; the triangular 

 lobes thus formed are setiferous, and separated from the clyp- 

 eus by a deep interantennal excavation; from the bottom of 

 the emargination emerges a serrate (quadridentate) plate; 

 the clypeus bears in the middle an ovoid tubercle, provided at 

 the apex, just beneath the tooth plate, with two div'ergent tufts 

 of hair; the lateral margin of the clypeus is angulated and 

 refiexed; the labrum is broadly emarginate. Antenna, stout, 

 the basal joint strong, longer than wide, convex below, 

 slightly transversely concave above: second oblong, smaller; 

 third to eighth still smaller, globular, ninth transverse. Tenth 

 very large, truncate in the 5, subglobular; the last, at least as 

 wide as the tenth, ovoid, acuminate; in the ? the tenth joint 



