The Pselaphid^ of North America. 251 



than half as wide near the neck as at the base, convex, 

 equally vaulted, basal median fovea small, no additional basal 

 punctures. Elytra as long as the prothorax and half the 

 head; the width across the high prominent acutely rounded 

 shoulders is four-fifths of this measure, and across the tip one- 

 fifth greater. Disk convex, discal lines very deep at the base, 

 abbreviated near the middle. Sutural lines straight, deep, 

 especially near the base, leaving an interrupted transverse 

 basal elevation. Sides from the shoulders to the posterior 

 fourth almost imperceptibly arcuate. Abdominal segments 

 subequal, the first dorsal depressed along the base, border 

 narrow. Legs long, femora clavate, tibia? angular length- 

 wise, tarsus thicker at the articulation of the second and third 

 joints, tapering towards base and claws. 5 anterior tro- 

 chanters provided with a long slender spine at base, inter- 

 mediate coxa; with a straight thinner spine. 

 Habitat. CaHfornia. 



• Rhinoscepsis, Lee. 



R. BisTRiATA, Lee. Body elongate, gradually and slightly 

 widening from the base of the elytra to the end of the third 

 abdominal segments, apex of prothorax and base of the head 

 transversely dilated, scabrous or densel}- pubescent. Color, 

 brown, lustreless. Length, i mm. Plate VII., Fig. 32. 



Head triangular, the lateral angles behind the eyes trun- 

 cate, parallel, acutely rounded to the nearly straight very 

 shghtl}- sinuate base, arcuate towards the eyes, anterior to 

 the parallel tempora, thence abruptly narrowed and pro- 

 duced into a parallel-sided frontal protuberance, which has at 

 the tip a conspicuous elongate impression. Vertex with two 

 rounded fovece in a transverse Hne one-third from the base, 

 mutually separated by a distance as great as that separating 

 them from the parallel tempora. Eyes small, at about the 

 middle of the sides of the head, scarcely visible from above. 

 AntenncB slightly shorter than the head and prothorax, first 



