a) 
130 INSECTA SAUNDERSIANA. 
Erax concotor, Fem. 
Flavo-fuscus, abdominis segmentorum marginibus posticis fulvis, antennis 
nigris, pedibus rufis, femoribus nigro vittatis, alis fulvis. 
Body yellowish brown ; head adorned with a tawny covering, whitish 
and clothed with whitish hairs behind and beneath, beset behind the eyes 
with yellow bristles; face slightly convex and armed with pale yellow 
spines towards the epistoma ; one or two black bristles on each side of the 
peristoma: eyes bronzed; fore part nearly flat, its facets a little larger 
than those elsewhere: sucker black, clothed at the tip with tawny hairs ; 
palpi black, beset with long black bristles: feelers black: chest thinly 
clothed with black hairs, beset on each side and behind with black bristles : 
abdomen clothed with short yellow hairs, narrower than the chest and 
nearly twice its length, tapering from the base to the tip, which is black, 
shining and compressed ; hind borders of the segments tawny : legs dark 
red, clothed with short pale yellow hairs, armed with black spines ; thighs 
striped with black ; claws black, red at the base; foot-cushions dark tawny : 
wings tawny; wing-ribs and veins red, the latter pitchy towards the tips; 
poisers tawny. Length of the body 11 lines; of the wings 18 lines. 
Erax Asper, Mas. 
Flavo-fuscus, capite pectoreque fulvis, antennis pedibusque nigris, tibiis 
rufis, alis subfulvis. 
Body black: head adorned with a tawny covering, yellow and clothed 
with pale yellow hairs behind and beneath, thickly beset behind the eyes 
with black bristles, clothed with black hairs on each side of the crown ; 
tubercle of the eyelets beset with black bristles ; face convex along nearly 
the whole length, very thickly clothed with pale yellow hairs, among which 
some black bristles are mingled: eyes brassy; fore part nearly flat; its 
facets larger than those elsewhere: sucker clothed at the tip with pale 
yellow hairs ; palpi very thickly beset with black bristles: feelers black ; 
first and second joints clothed with black hairs; second not half the length 
of the first: chest covered with yellowish brown, thinly clothed with black 
hairs, beset on each side and behind with black bristles: breast dark 
tawny: abdomen mostly covered with yellowish brown, tapering from the 
base to the tip, where it is shining, narrower than the chest and nearly 
