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” 
BRENDEL—SYNOPSIS OF FAMILY OF PSELAPHID. 301 
edges obsolete; vertex arcuately impressed; pro- 
thorax with two or three longitudinal grooves, 
two unequal claws” - - - : Barrisus Aubé 
Posterior coxe approximate. 
Body circulo-cylindrical, narrow ; vertex arcuate- 
ly impressed, prothorax without longitudinal sul- 
cus, the last antennal joint only enlarged, tarsi 
with a single claw (Zrzmzinz). 
Elytral base bifoveate, no subhumeral fovea, 
head larger (Z7imiopsis Reitter) - - Trimium Aubé 
Elytral base trifoveate with a subhumeral fo- 
vea, head smaller - : . - Actium Casey 
Body elliptico-cylindrical, convex, broader, the 
last three antennal joints enlarged, head trans- 
verse, prothorax with sharp straight linear longi- 
tudinal and basal sulcus crossing each other, tarsi 
with two unequal claws ( Zvogasterint). 
Prothorax at the sides not spinous. 
Elytra each with three basal foveolx, sutural 
line and two shallow longitudinal discal impres- 
sions, body uniformly tapering towards the head. 
Conoptectus Brendel* 
Elytra with four basal punctures, each with a 
sharp line, the discal ones abbreviated. (/hextdius Casey) 
EvurHexiust Sharp 
Prothorax at the sides spinous. 
Prothorax armed on the sides with a single sharp 
tooth, elytra with three discal lines ( Oropus 
Casey) - - . - : - TROGASTER Sharp 

* The genus Conopflectus is founded on Euplectus canaliculatus, having a second rudi- 
mentary claw, the fourth dorsal segment not prolonged, and an entirely different form of the 
body than Euplectus. 
+ A few months after Sharp’s publication this genus was published by Casey by the 
name ‘' Rhexidius.” 
