Part II.] Cameron : Parasitic Hymenoptera. 5 
area having a foveainits centre ; it is not otherwise excavated. Occiput 
not margined. 
The only genus of Monodontomerince known with pilose eyes is 
Oligosthenus, Foer., but that has not a cross-furrow on the scutellum 
and differs in other respects. The pilose eves separate it from the genera 
with a transverse scutellar furrow, Physothorax and Pleseostigma being 
further distinguished from it by the 1st abdominal segment being in¬ 
cised medially. It is more closely related to Monodontomerus , but that 
genus has bare eyes. 
Far oligosthenus trichiopthalmus } sp. nov. 
Green, with coppery and brassy tints, the apical segments of the 
abdomen rufo-violaceous, the antennal scape, pedicle, tibiae and tarsi 
rufo-testaceous, the flagellum of antennae black, fuscous below ; wings 
hyaline, the nervures black. ? . 
Length 3 mm. ; terebra 1 mm, or one-third of the length of the 
abdomen. 
Dehra Dun. Out of Sal (Shorea robusta ) and out of Sundari wood 
(Heritiera Pomes , Buck.) May and June. 
The puncturation is weak and shallow on the thorax, there are indi¬ 
cations of fine transverse striae on the pronotum ; the base of the apical 
part of the scutellum is finely and closely longitudinally striated. There 
is a triangular area on the base of the metanotum in the centre formed 
by furrows. Mandibles dark rufous. The basal half of the 2nd 
abdominal segment is finely and closely transversely striated. The 
pubescence on the head, thorax and legs is white and dense ; the 
abdominal segments are fringed with longer white hair. There is a fine 
keel on the malar space, which is one-third of the length of the eyes. 
The clypeus is clearly separated, is narrow above and becomes gradually 
roundly widened below. The basal joint of the flagellum is obscure 
green above ; it is longer than the ring joints ; the flagellar joints are 
densely covered with white pubescence. 
The host of this species is not known, but it was bred from a cocoon 
collected out of a Sal tree, the cocoon being probably that of a moth. The 
European species of Monodontomerus , its closest ally, are known to be 
parasitic on Anthophora (a bee), caterpillars of moths and a sawfly. 
[ 95 ] 
