1918. | BASHAMBAR Das: The Aphididae of Lahore. 159 
numbers. Body elongated, cornicles black; large yellowish-green cauda and long 
black antennae on frontal tubercles; the pattern on the back of the alate female, as 
shown in the figure, and about sixteen sensoria on the third antennal article are 
distinctive. 
MORPHOLOGICAL DESCRIPTION. . 
Apterous viviparous female.—Form of the body much elongated oval or elliptical, 
from three to four times longer than broad ; the body has short rows of hairs on well 
marked segments; without any mealy covering. 
Colour yellowish-green, dark green in places; appears mottled because of the red 
eyes of the young embryos seen through the skin. 
Head and post-cornicular part yellowish. 
No pattern except the two rows of brown depressions in line with the lateral 
grooves and running internal to the cornicles. The segment immediately behind the 
cornicles is oily and elevated above the general surface. 
Head yellowish, almost as broad as long, distinct but not large; frontal tubercles 
about half the size of the first antennal joint, front rather shallow with a median 
convexity and a few short hairs. 
Eyes large and red, with well developed occular tubercles. 
Antennae either wholly black, except for the lighter basal two joints, or light 
greenish ringed with black at the articulations; distal third always black ; hairs short 
and sparce, arising from small tubercles. Length about that of body or slightly 
longer, not reaching beyond the body. 
Length proportions :— 
IT. IVe V. WIE 
49 35 30 O7 
Lengths .. 079 0°57 0°50 0°13 +0°70 mm. 
The third article bears only two or three sensoria. 
The prothorax bears a small lateral tubercle, which is rather unique as we do not 
find them in this genus. 
Cornicles black, conical, long and projecting backwards and outwards, slightly 
curving also; bases swollen and light in colour ; the proximal four-fifths granulated 
finely, the distal one-fitth narrowed, always darker and bearing polygonal markings 
over its surface. 
Cauda light yellowish, thick, constricted near its basal third part and afterwards 
gradually narrowing ; sharp tooth-like tubercles and curved hairs are present as usual. 
In life the cauda is carried like a sabre with a gentle curve; it is about half the length 
of the cornicles. 
Anal and genital plates distinct ; the latter concave anteriorly. 
Legs long and light greenish; a little duskiness at the knees, while the tarsi are 
black. 
Rostrum short, yellowish; last two joints subequal, reaching to the level of 
second coxae. 
