148 Memoirs of the Indian Museum. > VOIE 
surface of the antenna. There are occasionally one or two hairs arising from it, whose 
bases may be seen as white dots.! As they are crowded at the apex of the joint 
that part looks swollen. Their number is from four to six (4-6) on article III; from 
two to three (2-3) on IV and only one or none besides the primary on V. 
Prothorax sharply defined from the head, broad rectangular in outline; it carries 
a blacker stripe on its anterior edge. $ = 
Mesothoracic bosses large, flattish, of the usual form; so is the metathorax with 
its one semilunar median, and two triangular lateral black spots.’ 
Wings ample, much longer than body; grayish-white with thin brown veins. 
Stigmal flattening large and inflated, rhomboid; its posterior border continues 
along the subcosta as a thick black band, the centre is occupied again by a black 
~ elongated spot. A thin false vein passes behind the stigma right up to the insertions 
as illustrated. The stigmal takes its origin from the latter and reaches the margin 
almost straight with a very slight curve. Cubitus simple and obsolete at base. 
First and second discoidal veins arise in most cases as a result of the forking of 
a common trunk, springing from the basal third of the subcosta, which is rather 
unusual. The hind wing also is relatively large with two normal oblique veins.’ 
Abdomen ovalish, strongly arched and distended, due to the presence within of 
a large number of young ones. Lateral grooves and carinae come quite near each 
other, but at the sides the segments are separated by shallow grooves which impart 
to the edges a wavy or festooned appearance. 
Colour very dark dirty greenish; glands similar to those of the apterous win 
parous female; cauda and cornicles absent. 
Anus dee anal and genital plates as in the apterous female. Rudimentary 
gonapophyses as two very conspicuous, rounded, spiny processes between the plates. 
Legs longer and blacker. | 
Rostrum similar, but reaches only very little beyond the first coxae. 
Measurements :— 
Length 22 + 2200 
Breadth Me .. 0'50—0'60 mm. 
Antennae + se 0:60 EN 
Wing expanse .. Er He BOSS OPEN 
Wing + “> 2:0. 230.60 mm. 
Natural History.—The winged females issue forth in large swarms from cracks or 
holes in the pod-like galls. In Lahore this begins about the third week of October 
and continues ent November. The colonies inside the a which were kept 
l The sı small hairs mentioned a Mr. Das a not arise from the membrane of the sensorium, but 
from the integument itself on the opposite side of the joint. P. v. d. G.]. 
? [The mesothoracic bosses are indistinctly separated ; the mesothorax, therefore, is simple, not 
three-lobate. 
Mr. Das does not mention a marginal group of facets on each side of the prothorax and two spinal 
groups on the middle of the metathorax. P. v. d. G.]. 
3 [Unfortunately Mr. Das does not mention in what way the wings are carried under normal con- 
ditions. P: vw. d.G: 
