1918.] BASHAMBAR DAS: The Aphididae of Lahore. ZZ 
Literature : — 
Kaltenbach, Pflanzenl., 1843, p. 76. 
Koch, Pflanzenl., 1857, p. 136, fig. 125. 
Schouteden, Cat. Aph. Belg., 1906, p. 224. 
Distinguishing characters. —The apterous female is wholly grass-green, including 
the legs and cauda as well as the proximal halves of the antennae and cornicles. The 
alate female is green with thick-veined wings and sensoria on articles III and IV. 
It is found on Nasturtium sp., a cruciferous weed, in March and April. 
I believe that the Punjab insect is identical with the European one which is 
known to me only from published descriptions. The structural details of the latter 
are not available, but those noticed in the former are given below :— 
Apterous viviparous female.—Body of medium size, scantily pruinose, rather 
stout, ovalish in form. Ne : 
Colour grass-green, bright ; legs, rostrum, antennae except the sixth article, main 
part of cornicle, cauda, ventral surface similar in colour; tarsi black; eyes blackish- 
red. 
Head twice as broad as long; small frontal tubercles present ; prominently 
knobbed in front. 
Antennae about two-thirds of the body-length ; the articles indistinctly separated, 
sparingly hairy. | 
Proportions :— : 
III. IV. Ne VI. 
16 SEIT 93 - 6+18 
Lengths .. 0°26 0'IQ 0:77, 0'IO-+0'30 mm. 
There are lateral tubercles on the prothorax and first and seventh abdominal 
segments. 
Abdomen smooth, with rows of very fine hairs on the segments. 
Cornicles for the most part greenish, specially near the base; distally smoky, in 
old specimens they may be altogether dusky; cylindro-conical, truncate, smooth 
without any imbrications, curved outwards. 
Cauda somewhat conical; apex thick and rounded, two-thirds as broad as the 
base. 
Anal plate rectangular; genital lighter in colour and band-like. 
Rudimentary gonapophyses three. 
Legs short ; tarsi black ; sole pustules well marked on the tibial points. 
Rostrum long, black tipped ; it reaches almost to the third coxae. 
Measurements :— 
Body length  .. = .. 1°60—1'°70 mm. 
Breadth = 23 my 095 -1:00 7, 
Antennae ©: we Pek TO mm 
Cornicle = i OSTSEE 
Cauda ER a Os EO uy ts 
