APATHUS. 
303 
vertex broad, glabrous, with a deeply impressed cross 
upon its summit, in the centre of which the ocelli are 
placed in an almost straight line and contiguously; an¬ 
tenna short, filiform, geniculated, the scape slightly 
curved, the basal joint of the flagellum subglobose, its 
second joint as long as the terminal one and subclavate, 
the rest short, subequal, but gradually increasing in 
length to the terminal one, which is laterally compressed ; 
the face flat; clypeus transversely lunate but straight in 
front; labrum lunulate, tuberculated laterally; man¬ 
dibles broad and obscurely bidentate; cibarial apparatus 
moderate; tongue twice the length of the labium, taper¬ 
ing from base to apex, where it terminates in a small 
knob, and is clothed with short hair; paraglossa obsolete; 
labial palpi as long as the tongue, the two first joints 
long and membranous and tapering to the apex of the 
second, which is acute, and about one-fourth the length 
of the first, it has the two very short, subclavate, ter¬ 
minal joints, which are conterminous, and articulated 
just before its acute apex; maxilla subhastate and acu¬ 
minate ; maxillary palpi very short, linear, and equal. 
Thorax globose, pubescent, concealing its divisions; 
metathorax truncated; wings with three submarginal 
cells nearly equal, or the third the largest, the second 
receiving the first recurrent nervure at about one-third 
its length, and the second is received by the third sub¬ 
marginal cell near its extremity; legs setose ; the pos¬ 
terior tibia convex, very slightly enlarging from base to 
apex, rounded at the extremity externally, and unfur¬ 
nished with means to convey pollen; posterior planta 
oblong, narrowly equal, and not auriculated ; claws bifid. 
Abdomen ovate, convex above, deflecting toward its ex¬ 
tremity, and subglabrous on the disk, the terminal 
