1918. | BasHAMBAR Das: The Aphididae of Lahore. 199 
Proportions of articles :— 
ELT: IVe V. Vale 
27 17 124 6 +22 
Lengths.. 0°45 0'28 0°20 0'IO+0'36 mm. 
Thoracic segments in stout individuals ill-defined, lateral tubercles present on 
prothorax. 
Abdomen uniform ; rows of spots in lateral grooves; posterior two segments ban- 
ded across; last one with a darker stripe ; lateral tubercles on all the segments.! 
Cornicles long, cylindrical, imbricate, slightly broader at base; they reach to the 
base of the cauda and are directed backwards and inwards. 
Cauda ensiform, apical part dark, oval with a few hairs; basal part broad, 
hyaline, black on edges, less than half the length of the cornicles. 
Anal plate rectangular, when seen from below situated a little lower than the 
genital plate and overlapped by it. The latter appears as if made up of two rounded 
halves. 
Rudimentary gonapophyses three. 
Rostrum reaches almost to the second coxae. 
Measurements on an average :— 
Body Le ae 77:00x:0:95) mit. 
Antennae at i rom: 
‘ Cornicle a of Pee OSs de 
Cauda ay ae ep OURS). 
Alate viviparous female.—Colour dark grey or black; very little meal on body. 
Head black, without frontal tubercles. Eyes dark red. Antennae long. 
Proportions :— 
JA A IV: V. ME: 
22 13 12 ee 
Lengths .: 0°36 0'2I 0°20 0‘I0+0°50 mm. 
Prothorax with a black band anteriorly, in the middle of which on either side is 
a lateral tubercle; near the posterior angles again another pair which is larger but not 
so black. 
Mesothorax usual shining black. 
Wings broad; veins. and stigma brown; posterior border of latter darker ; 
cubitus only forked once ; anterior limb of the fork longer. | 
Abdomen pyriform; the pattern consists only of large carinal spots on the 
second, third and fourth segments; those on the first and fifth are smaller. Imme- 
diately behind the cornicles a large rectangular blotch ; the seventh and eighth seg- 
ments are black-banded ; transverse, almost linear spots in latero-dorsal grooves. 
Lateral tubercles alternate with the carinal spots. 
! [Very likely this statement is incorrect. As far as I know all Toxoptera species only show lateral 
tubercles on the first and on the seventh abdominal segments. P. v. d. G.]. 
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