Part II.] Cameron: Parasitic Hymeno pter a. 15 
thorax, broadly ovate, almost as wide as the thorax, the 2nd segment 
as large as all the others united, as wide as long, the base crenulated, the 
rest closely longitudinally striated to near the apex. The sub-marginal 
and marginal nervures are not clearly separated ; the former is curved, the 
latter straight, not half its length ; the stigmal vein is long, almost as 
long as the marginal; the post-marginal is longer than the stigmal. 
There are no parapsidal furrows. The edges of the abdomen are 
somewhat acute, but can hardly be called keeled; the ovipositor does not 
project. The outer eye orbits and the malar space bear a stout keel; 
there is also a keel down the middle of the front. The keel on the malar 
space is curved and reaches to the base of the mandibles. Malar space 
longer than the eyes. Clypeus short, its apex rounded, broadly margined. 
Legs normal, the femora not dilated, the hind tarsi slightly larger than 
the tibiae, 5-jointed, the basal joint of the hinder as long as the following 
2 united. Mesonotum bordered laterally by a crenulated furrow. Pro¬ 
thorax small, not visible from above. 
A genus easily recognised from anything known by the peculiar form 
of the antennal scape, which looks as if it were 2-jointed from the base, 
being abruptly narrowed. 
Immsia carinifrons , sp. nov. 
Black, the dilated apical part of antennal scape and the legs, except 
the cox®, red, the basal joints of the antennal scape of a duller red ; wings 
hyaline, the edges shortly ciliated, the nervures pallid. ? . 
Length 2 mm. 
Dehra Dun, 3rd August ( V. 8. Iyer.) 
Head and thorax opaque, closely rugosely punctured, the basal 
segment of abdomen strongly, longitudinally striated, the large 2nd 
finely and more closely to near the apex, the rest smooth and shining. 
Vertex closely rugosely punctured, the front transversely striated, the 
striae in the centre stouter, more clearly separated and more or less 
curved ; a stout keel down the centre. Cheeks margined, aciculated. 
Mesonotum closely, distinctly longitudinally striated, the striae, interlac¬ 
ing ; scutellum strongly longitudinally striated, the striae almost form¬ 
ing reticulations. Scutellum strongly, irregularly striated. Metanotum 
strongly, regularly striated. Propleurae irregularly longitudinally striated, 
Mesopleurae aciculated, its base and apex with a row of foveae, that on 
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