1918.] BASHAMBAR Das : The Aphididae of Lahore. 169 
(29) Rumex dentata. 
(30) Chenopodium sp. 
(31) Tropoeolum sp. Nasturtium. 
(32) Viola tricolor. 
(33) Gallium sp. 
(34) Cinanaria. 
(35) Echinops echinata. 
Phorodon cannabis, Pass. 
(Bhang Aphid. Vern. Bhang Tela). 
MORPHOLOGICAL DESCRIPTION. 
Apterous viviparous female.—Body rather long elliptic, tapering towards ends; 
more than twice aslong as broad, provided with distinct knobbed hairs mostly 
directed backwards. 
Prevailing colour deep green; sometimes very light coloured individuals are met 
with, especially in March and April. Three broad longitudinal stripes run down the 
back from the head to the apex of the abdomen. The lateral stripes have dark spots 
to indicate the abdominal segments, well seen in fixed specimens. The thoracic 
segments are marked off by green transverse grooves. 
Head green ; front very narrow with a few capitate hairs ; frontal tubercles large 
and each produced into a well-marked tooth directed forwards and inwards, carrying 
a few hairs. 
Antennae above the tubercles green proximally, while the distal half is black ; 
the whole surface furnished with scattered and similarly knobbed hairs. 
The first joint is drawn forward into a tooth on the inner side, with hairs on its 
end. SE 
Antennae slightly shorter than the body. 
Length proportions of the joints from the third segment onward as follows : — 
LIT. “IV. V. VI. 
20 uA 12 5+21 
euethse. 733 22 2 ‘08 +°42 mm. 
Prothorax green like the rest of the thoracic segments, the lateral depressions 
being well marked as usual. The sides are well rounded; there is just the appear- 
ance of a short tubercle near the posterior edge. 
The skin on the abdomen is marked off into very irregular areas whose boundaries 
rise clearly above the general surface. It gives a strange corrugated but a distinctive 
appearance to the species under the microscope. 
Cornicles long, thin, cylindrical, occasionally slightly clavate ; green throughout 
in young and smaller individuals, but smoky on the distal quarter in the adult and 
old specimens. They lie in a sickle-like curved manner (see figure), at first directed 
backwards and towards the middle line, then slightly diverging. They project beyond 
the cauda and often are full of oil globules, forming a row within the cornicle, 
