EPIUBUS. 173 



gall-tissues, which in one case seemed to be preferred to those of 

 the Sawfly, since both host and parasite were found living side by 

 side in the same gall (cf. lib. cit. iii, p. 78). These two instances 

 of possible phytophagous diet are very nearly unique among 

 ICH2rEUM<mDj, for Westwood has shown the observations in this 

 direction by the older authors to have been fallacious (Introd. ii, 

 p. 144). 



Range. The Palaearctic region is very rich in species of this 

 genus, which is hardly scarcer in Northern America ; but we 

 know only four at present from India, though it is quite possible 

 that this paucity is to some extent accounted for by the incon- 

 spicuous coloration and comparatively small size of these insects. 



Table of Species. 



1 (6) Frons evenly punctate throughout. 



2 (5) Nervellus intercepted distinctly above the 



centre. 



3 (4) Facial punctures obsolete ; radical callosi- 



ties pale satanas, sp. n. ; p. 173. 



4 (3) Facial punctures large ; radical callosities 



immaculate nursei, Cam., p. 174. 



o (2) Nervellus intercepted at its centre lineipes, sp. n., p. 175. 



<3 (1) Frons strongly trans-strigose centrally (as 



in Pimpla) erebus, Cam., p. 176. 



116. Epiurus satanas, sp. n. 



6 $ A black species, with the legs, except the hind tibise and 

 tarsi, red. Head narrower than the thorax, with the frons and 

 vertex nitidulous and obsoletely punctate ; ocellar region elevated 

 and anteriorly circumsulcate ; face 

 nearly smooth, with elongate brown 

 pilosity, and centrally elevated ; 

 clypeus strongly transverse, basally 

 discrete throughout, with the apex 

 depressed ; cheeks wanting ; palpi 

 stramineous. Antennae longer than 

 half the body, subfiliform and 

 slightly attenuate at both extremi- 

 ties; scape and base of flagellum 

 testaceous in $ , stramineous in <$ , 

 beneath. Thorax subelongate and 

 not broad, black, with a callus and 

 a short line above it immediately 

 before the tegulae stramineous ; 

 Fig. 39. Epiurus satanas, Mori. notauli distinct but short ; mesono- 

 tum nitidulous, with sparse recum- 

 bent pubescence ; metanotum convex, evenly rounded, coarsely and 

 irregularly punctate with elongate pilosity ; areola laterally dis- 

 tinct and parallel-sided, extending to the centre, coalescent with 

 'the basal area and apically incomplete; lateral caring entire, 



