1018.| | BASHAMBAR Das: The Aphididae of Lahore. 255 
distinguished chiefly by the antennae being six-jointed and by the sixth article bear- 
ing a small nail-like spur, the ‘‘ processus terminalis,’ the latter could not be counted 
as a seventh joint as in the sub-family Aphidinae. It would in that case be placed 
very close to the genus Phyllaphis of Koch and Péychodes of Buckton. 
In common with Phyllaphis, it possesses wax-glands that secrete the woolly floccu- 
lence over the body, small pore-like cornicles, and antennal articles of the same 
proportional lengths. Winged males and apterous viviparous as well as oviparous 
females (the latter containing from six to eight eggs) are also present in both genera 
(Phyllaphis and Shivaphis). 
_ The main points of difference are the well-developed cauda and the pigmented 
wings ; the former is said to be obsolete and the latter plain in the case of Phyl- 
laphıs. 
The resemblance to Ptychodes is as follows :— 
(i) In the wings, where the nervures dilate at their apices into triangular fus- 
cous spots. 
(ii) In the deeply bilobed character of the anal plate, which is situated below 
a distinct though not quite similar cauda. 
The differences to Péychodes is that in Ptychodes there is no trace of wax-glands, 
the body instead being very pilose, the young specially so. The cornicles also 
e ‘“buccinate” and all the parthenogenetic females are always said to be winged. 
The Indian insect agrees with neither of these genera, nor have I been able to 
_ find any among the genera so far described in which it could be properly placed. It 
had, therefore, to be separated into a new genus, Shivaphis. It was fortunate in this 
connection that I was in a position to consult and also to have the agreement of a 
distinguished European student of Aphids. 
In proposing the name Shivaphis for this insect, I have follovied the lead of some 
of the distinguished naturalists who have carried out their investigations in this 
country. The Aphid is named after a chief Indian deity ‘‘ Shiva,’’ who is usually 
represented with long ash-gray hair flowing down his back, from amongst which the 
sacred waters of the Ganges take their origin. The long and white flocks of waxy 
material over the head and body of the insect does remind one of Shiva’s hair, though 
the comparison between the Ganges and the copious honey-dew that the insect dis- 
charges may not be quite appropriate. 
Shivaphis has further a systematic interest of its own, specially in view of the 
recent overhauling of the ‘‘ classification of aphids’’ which even now can not be 
considered as quite satisfactory. 
Buckton, as indicated above, was the first to establish a new genus (Ptychodes) 
for a walnut Aphid first described as Aphis juglandis (Frisch), and later transferred 
by Koch and Passerini to Callipterus. The short antennae, aborted spur, and some 
differences in the form and metamorphosis required in Buckton’s opinion the creation 
of a new genus. But he has had little support from modern aphidologists and the 
species juglandis has been placed, with good reason no doubt, again in Callipterus with 
Ptychodes as a synonym. 
