BRENDEL—SYNOPSIS OF FAMILY OF PSELAPHIDA. 299 
a Tarsi with asingle claw. Posterior coxz distant. 
Max. palpi excessively long, the second and 
fourth joint pedunculate-clavate, very long. 
Max. palpi long, the second joint clavate - pe- 
PseELaAPuus Herbst 
dunculate, the third triangular, the fourth long 
securiform - - - - - Tycuus Leach 
Ud 
a’ Posterior coxe proximate. Tarsi with a single 
claw. Body linear, depressed - RuinoscEpsis Le Conte 
II. Antennz distant, inserted on the sides of the head beneath 
short, distant, not porrected tubercles. 
a Posterior coxe distant. Claws, only one fully 
developed. 
6" Body broad, transversely elliptico-cylindrical in 
the cross-cut. Abdomen more or less broadly 
margined. 
©” Abdominal margin retuse, narrow; dorsal seg- 
ments subequal: the two basal ventrals longer ; 
elytra narrow-shouldered, very long. Vertex 
bifoveate. 
Last palpal joint long-securifrom, with a rudi- 
mentary hair-shaped second claw. 
Bytuinus Aubé (Macherites) 
Last palpal joint ovate-acuminate, short; tarsi 
with a single claw - - Evurricuites Le Conte 
ce’ Abdominal margin broadly retuse, the basal seg- 
ments of the dorsum and ventre much longer, 
tarsi with a single claw (4ryaxznz). 
Vertex bifoveate or foveze wanting, prothorax 
unifoveate, antenne 10-jointed with the club 
3-jointed; body broad, sexual marks on the 
intermediate thighs, elytral lines and abdomi- 
nal carinz long parallel - DECARTHRON Brendel 
Vertex not foveate, prothorax faintly trifove- 
ate, undersurface of the head bicarinate, body 
broad, antennal club 3-jointed” - - Nisaxis Casey 
