Part II.] 
Waterston: On Chalcidoidea. 
9 
Hind tibia infuscated on outer aspect as well to about fits length, 
the inner and outer infuscations hardly meeting dorsally. Head, the 
malar keel gives off one keel backwards, the preorbital keel being absent. 
There is a narrow triangular smooth supra-clypeal area. Mandibles 
both bidentate, the teeth equal and spreading (fig. 5, b,) 2nd normal 
funicular joint practically quadrate (fig. 5, a). Scutellar plate only 
slightly bilobed. No tooth on propodeon behind the spiracle and no 
tubercle on hind coxa. 
Type of var. xanthoferns $ in British Museum. 
One of a series ex pupa Hypsipyla robusfa Moore, em. 
Dehra Dun, United Provinces, 17th October 1913, C. F. C. Beeson 
[18th April 1916, N. C. C. ; ex pupa of Euploea on leaf of Nerinm odorum, 
Dehra Dun, 10th October 1918, C. F. C. Beeson], 
In typical hearseyi $ the hind femur is completely infuscated to | 
from the base. The single from the type locality (Barrackpur, 
Calcutta) seems to me indistinguishable from the Dehra Dun specimen 
of this sex. 
In colour and general facies this variety of C. hearseyi Kirb. looks 
like a small form of C. marginata Cam. but the two can be readily sepa- 
rated by the characters noted, (c/. figs. 5 and 2, a-e). 
Chalcis marginata Cam. (Figs. 1 and 2). 
Oncochalcis marginata Cameron P. (The Entomologist, p. 162, 1904). 
(Jand 2$$ from Dehra Dun, United Provinces, 8th May 1915 (C. F. C. 
Beeson), one $ bred ex pupa of Lymantriid ; the others taken on the 
wing. 
Oncochalcis (l.c. p. 161) as defined by Cameron is full of inaccuracies 
and trivialities. Interpreted by its type, the category applies only to a 
section of the genus Chalcis. The Carinas of the head and the characters 
of mandibles and hind coxae are the most reliable guides to the recogni- 
tion of this group. It should be noted however that, particularly in 
badly nourished examples, the sculpture of the head may be feebly 
developed and the keels difficult to make out. The tooth on the hind 
coxa may be practically absent though the angulate ventral edge is 
never lost. There is also a tendency for the left mandible to develop 
a minute denticle in the angle between the apical teeth. 
In Europe the representative form of this group is I believe C. 
intermedia Nees. (1834). 
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