1918. | BASHAMBAR Das: The Aphididae of Lahore. / 251 
enclosing the genital armature-like hoops. The whole structure is shown from the 
ventral side in the camera lucida drawing. 
The anal plate is not strongly bilobed in a U-shaped manner as in the viviparous 
female, but the bifid character is indicated by a small notch, as illustrated. 
Other characters are like the alate viviparous female. 
Measurements : — 
Body Be i ee 25 < OAS. mann 
Antennae i Ex RSI 
Wing expanse .. se ee a os Oar 
The males are fairly abundant in early December; late in the month they become 
scarce and are only to be found as isolated specimens here and there. 
Oviparous female.—Long tows of oviparous females are to be noticed in late De- 
cember on the under sides of yellowish leaves along the larger veins. The black legs, 
scarlet bodies and tapering abdomen make them conspicuous; the woolly flocculence 
also is not very abundant. Four rows of blackish glands run along the dorsum with 
slight grooves in between ; the segmented abdomen causes similar grooves or shallow 
lines in a transverse direction. The body, therefore, appears as if divided into 
squarish areas each enclosing a gland in the middle. The sides of the thoracic seg- 
ments often become very dark, almost as black as the head or legs. 
The pore-like cornicles appear as if they were very large sensoria with a double 
outline ; they are slightly raised above the general surface. 
The post-cornicular segments taper gradually and are much lighter, almost yellow- 
ish in colour. 
The ringed antennae, cauda, rostrum, etc., are all like those of the apterous 
viviparous female. 
Genital plate large and conspicuous, concave anteriorly. 
Anal plate peculiar in being stumpy, not at all bilobed ; even the bifid indication 
of the alate male is absent ; it projects beyond the cauda. In front of it are four 
rudimentary gonapophyses. These are furnished with shorter but stouter spines 
than those of the anal or the genital plate.' 
The hind legs are conspicuous on account of their very much swollen tibiae, - 
brownish-yellow in colour and covered over by numerous sensoria. 
Eggs.—In mounted specimens the red bodies of the females show several eggs 
through the transparent skin, packed up even to the thoracic segments. All of them 
appear to be mature, of equal size and yellow. Several individuals that had not laid 
their eggs were dissected in chromaceltic-acid which fixes them at the same time. 
The number of eggs in each was from 4 to 7; the average being 6. So many eggs are 
quite unusual in Aphids. Generally they have only one or two at a time and in most 
cases never more than one in their whole life, the egg invariably being of a large 
size. 
1 [Very likely the number of rudimentary gonapophysae in the oviparous female is 2, like that in 
the viviparous forms. I had no opportunity to study this sexual form myself. P. v. d. G.]. 
