Part II.] 
Water STOJ r : On Chalcidoidea. 
17 
anterolaterally margined, anteromedianly descending vertically but 
rounded only. Scutellum slightly exceeding the mid-lobe, 2 short 
distinct teeth, no longitudinal median depression or sulcus. Pleura ; 
mesopleural femoral impression 10-11 complete ridges and 2-3 incomplete 
ventrally ; on the ventral half of the metapleuron is a dense tuft of short 
glistening bristles. 
Propodeon (see fig. 10). 
Wings. Forewings distinctly triangular, not quite 3 times as long as 
broad. Length 4 mm., breadth 1-4 mm. Submarginal : marginal : post- 
marginal approximately in ratio 9:2:2. More exactly the postmarginal 
is about * longer than the marginal. The radius is sessile, less than i of 
the postmarginal. Up to ^ from its origin the submarginal bears about 
25 bristles ; from this point to the costa the bristles go from 2-4 deep, 
many of them flattened and scale-like. The short radius bears half a 
dozen bristles. The submarginal cell is covered with bristles (about 4 
rows deep) to half its width from the costa. The basal triangle is bare 
to about the uprise, but there is a row of minute bristles near to and 
parallel with the submarginal from about The discal ciliation is 
minute, dense, and regular but (a) on the coloured areas the bristles are 
longer, stouter, and with a tendency to become scale-like especially 
behind the marginal, and (6) between the coloured areas is a large 
roughly circular spot just behind the radius covered by weak thin 
bristles on both sides of the membrane ; (c) the subcostal ciliation from 
the radius towards the apex is denser. There are no complete isosclinal 
lines but two are indicated, one about the middle of the wing seen 
obscurely from the clear spot outwards and not reaching the termen. 
The second is double, beginning above the middle of the retinaculum 
and traceable to nearly the level of the outer edge of the outer spot. 
Hind wings ; length 2-8 mm., breadth -9 mm., a dozen bristles in a row 
at the hooks. 
Fig. 10. Antrocephalus destructor Waterst {^). 
Propodeon. 
[ 67 ] 
