1918.] BASHAMBAR Das: The Aphididae of Lahore. 245 
evidently belongs to the tribe Callipterina, Mordw. A key to the genera has been 
published by Wilson in the Canadian Entomologist for August 1910, based chiefly on 
the relative lengths of the spur and the base of the sixth antennal segment, taken in 
conjunction with the form of the cornicles. According to these characters it may as 
well belong to Myzocallis as to Callidterus, but its cornicles differ from both. Thean- 
tennal lengths are not now regarded as very satisfactory characters for the separation 
of genera, so if we overlook that character, the species would fit into Tuberculatus 
of Mordwilko with characters as emended by van der Goot (1913). The new type 
taken by the latter is Callipt. betulicolus (Kalt.), again an aberrant species, but pos- 
sessing several features in common with the lucerne Aphid under review. These fea- 
cHtes are — 
(I) Capitate hairs over the body. 
(2) Lateral tubercles on the abdomen. 
(3) The presence of apterous parthenogenetic females with sensoria on their 
antennae. 
In view of this van der Goot has recently proposed that a new genus may be 
erected for C. betulicolus (Kalt.) and that C. irifolii (Monell) may be styled Neocallipterus. 
For the present therefore we may leave it as an open question until further know- 
ledge of these forms is forthcoming. Some further information may be expected ina 
Bulletin on the ‘‘ Yellow Clover-Aphis’’ that is about to be issued by U.S. Depart- 
ment of Agriculture.' 
Shivaphis, gen. nov. 
Type : Shivaphıs celti, sp. nov. 
Characters.—Head grooved in front, without frontal tubercles. _ 
Antennae long, ringed with black ; 3rd joint longest, equal to any of the two fol- 
lowing which are subequal ; article VI furnished with a nail-like process as in Lachninae 
or in Phyllaphis. 
Sensoriae somewhat elliptical. 
Wings with cubitus twice forked, with clouded veins which flatten into pig- 
mented areas at the apices; stigma similar. 
Abdomen ovate and provided with four rows of wax-glands, which are also present 
on the head and thorax and secrete profuse quantities of white powdery and fibrous 
flocculence. 
Cornicles ring-like, small, almost flush with the level of the body, not rising above 
that of the glands. 
Cauda well developed, cylindrical, resting upon a broad watchglass-like base. 
Anal plate in viviparous females deeply bilobed as in Eallipterinae. 
' [Since Mr. Das finished his manuscript, a detailed account of the : ‘Yellow Clover Aphis” has been 
published by Mr. J. J. Davis (U.S. Dept. of Agr., techn. series, nr. 25, part 2, 1914), in which paper the 
species is still called Callipterus trifolii, Monell. Later investigations by Theobald have definitively 
settled that the “ clover-aphis’’ is identical with Aphis ononidis, Kalt., and therefore has to be called _ 
in future Callipterus ononidis, Kalt. (see Theobald, African Aphididae II; Bull. Ent. Res., Vol. 6, 1915, 
Dose Po d. G.]. 
