34 Indian Forest Records. [Vol. IX 
parallel with the costa. On the under surface, behind the postmarginal, 
the minute bristles are numerous but not so closely placed as in the sub- 
marginal cell. There are two parallel Isolated isoclinal rows of bristles, 
one (meeting the apical edge at I) rises below the knob, the second (at 
I) much longer, rising above the retinacular edge. The marginal fringe 
is extremely short and sparse, especially at the apex. Hindwings, length 
2’3 mm., breadth -8 mm. In its basal half the submarginal vein is broad 
and extends to the costa, fringed with about 20 soft bristles while on the 
distal half it is attenuated. Marginal vein giving rise to a little splint 
or recurved vena spuria with 2 bristles at its base. Numerous short 
bristles on apical half of the submarginal cell, 20 minute bristles at the 
hooks. Beyond the neuration is a short just post-costal apical row of 
isoclinal bristles. The basal emargination of the hind edge, deeper than 
in the forewings, bears a row of converging soft bristles. The wing is 
at its broadest just beyond J from the radix, which, as in the forewings 
contracts rather suddenly. 
Abdomen. Shorter than thorax (2 : 3), smooth, shining, with faint 
transverse pattern indicated chiefly posteriorly. 1st segment occupy- 
ing about 
Length 4'5 mm. Alar expanse 8’2 mm. 
Type S ill British Musemn. Dehra Dun 5th March 1913. From 
“ seeds of Albizzia Lebbek ” sent by R. S. T. ex Canjoborm gonagra Fab. 
(Bruchidae). 
Family PTEROMALlDiE. 
Genus Roptrocerus Ratz. 
Roptrocerus Ratzeburg Ichneum. d. Forstins. Vol. II, p. 209, t. 3, f. 2 
(1848). 
The species described below is evidently congeneric with Roptrocerus 
{Amblymerus) minis, Wlk., (1834) with which a comparison has been 
made. In several details however the published descriptions of the 
genus do not apply well to the Indian species. In it the antennae are 
cylindrical only a little enlarged in the short club which is peculiar in 
showing a small apical cap sei)arated from the 3rd segment by a suture. 
This is probably a terminal sense organ and not a separate segment. 
There are two actual, as well as an apparent third, ring jomts — the third 
being the much shortened transverse first funicular. The first tarsal 
joint in all the legs is elongate. The propodeon (besides the characters 
noted elsewhere) shows a deep sulcus along the anterior margin on the 
outer half immediatey behind the metathorax. This sulcus consists 
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