TO 
[June 
femora and constricted at the base, with the tip armed with two un¬ 
equal spurs, one of which is rather short, simple and curved, the other 
nearly twice as long, stout and deeply bifid; first joint of the tarsi as 
long as the tibiae, narrow, cylindrical and curved inwards; tarsal claws 
simple. Superior wings rather long and narrow, with one marginal 
and two submarginal cells, the first submarginal somewhat longer than 
the marginal, the second submarginal about two-thirds as wide as the 
first siibmarginal and much narrowed towards the marginal; the third 
discoidal cell elongate and bent about its middle towards the second 
submarginal, which receives the second recurrent nervure in the middle. 
Abdomen with seven segments, elongate, convex above, gradually 
narrowed posteriorly, retractile, curved under; segments minutely punc¬ 
tured, shining, somewhat transversely sulcate on their disk and with 
their sides rounded from the base; first segment short, flat on its ante¬ 
rior face; apical segment narrow, subquadrate, sinuate on the sides, 
and deeply and widely emarginate at the apex, disk with two longitu¬ 
dinal carinae each bearing a small obtuse tubercle on the posterior 
third of the segment. Abdomen beneath flat, smooth and shining, 
with a bifid projection on the anterior part of the second and third 
segments, that on the third segment being much more prominent and 
armed posteriorly with an acute spine; apical segment deeply bifid. 
Head black; clypeus, apex of the labrum, middle of the mandibles, 
a transverse line, dilated in the middle, between the antennm, and the 
outer and inner orbit of the eyes above the antennae, yellow; antennae 
above with the base of the first and the second joints black, the apex 
of the first, inner side of the second and the four following joints yel¬ 
low, the apical joints yellowish varied with fuscous, beneath blackish, 
margined on the inner side with yellowish, except the sixth joint which 
is tinged with fuscous. Prothorax black; its anterior margin above, 
and an oblong spot beneath the wings, yellow. Mesothorax black, a 
small, obsolete, yellowish spot on each side near the wing-scale. Scu- 
tellum black, a yellowish bilobed spot on the apex. Metathorax black, 
posterior angles yellow. Wing-scale yellow, except the anterior inner 
corner which is black. Wings stained with yellowish, nervures honey- 
yellow about the base, blackish towards the apex. Legs yellow, the 
coxae and trochanters, except their tips, and the base of the femora 
black; tarsi, except the first joint, reddish-yellow. Abdomen black; 
