1918. | | BASHAMBAR Das: The Aphididae of Lahore. 215 
It is extensively parasitised and preyed upon by numerous predaceous Aphid- 
enemies. 
Systematic.—I have not been able to procure the real A. cucurbiti of Buckton from 
England ; the original description is faulty in several respects, but the coloured figures 
that he has given seem remarkably like the insect described above. I have therefore 
kept it as a doubtful synonym of A. malvae (Koch). European specimens. agree in 
essential features with it, but Buckton has given in the same volume figures and an 
account of what he considered as A. malvae (Koch). It is likely, therefore, that his 
A. cucurbiti might be different, but only an actual examination of his specimens can 
settle the point.' 
Aphis malvoides, sp. nov. 
Hosts.—Numerous, e.g. Malva spp.; Malvestrum spp.; Chrysanthemum ; pear ; 
pansy ; Solanum spp., etc. 
A pterous viviparous female.—A comparatively small insect, but very abundant. 
Body oval, lemon-yellow without mottling ; between the cornicles usually a row 
of oil globules that possess a greenish tinge; this tinge in some individuals spreads in 
front and behind also. 
_ Head well-rounded, greenish-brown with inconspicuous frontal tubercles. 
The antennae reach half way down the back; black distally.. The spur and 
article III are almost equal; sometimes III is even slightly longer. 
Proportions :— , 
II. IV: V. VI. 
12 7 7 5 +12. 
Weneths 2. 2020 Orns 0313 0°08 +0°20 mm. 
Prothorax concolorous with head. 
All the thoracic segments have a pair of black dots, one on each side just above 
the coxal joints. A dark brown band, which lies to the front and outside each coxa, 
often invades the lateral sides and thus small smoky patches are visible on the 
carina even from the dorsal side. The band is largest on the metathorax. 
Abdomen pyriform ; all the segments bear lateral tubercles, the largest ones are 
on the first and seventh ; white meal is scanty on the dorsal surface. 
Cornicles small, ce and conical, truncate at tip. 
Cauda ern, tip dusky ; the bioader base below the constriction very light- 
coloured and hyaline ; about half the length of the cornicles. 
Anal plate rectangular, much blacker than the genital plate, which is more or less 
rounded. 
Legs yellowish, tibial points End tarsi black : in front of third coxae a conspicuous 
black mark extending outwards. 
The rostrum reaches almost to the 3rd pair of legs. 
! [In my opinion Aphis cucurbiti, Buckt., is without doubt identical with Aphis malvae, Koch. The 
species is common in Holland on cucumbers in greenhouses. P. v. d. G.]. 
