opnioy. 367 



the teeth hlack. Thontx laterally flavous ; notauli hroad and 

 tleeply impressed ; inetanotuin hasall}^ with a broad, deep and 

 semicircular impression, beyond "this is a transverse keel, from 

 which run two stouter keels to the apex ; from the middle of 

 these runs a stout, curved keel to the middle of the base of the 

 ])etiole ; there being inside this an oblique keel ; the whole 

 forming- a central and two lateral arese"; pleura; nitidulous and 

 impunctate, with a broad and deep central mesopleural impression, 

 and thence obliquely sulcate to the hind coxte. ScateUam flavous 

 and glabrous, not laterally carinate ; postscutellnm distinctly cari- 

 nate basally, obliquely sloping to the gradually widened apex. 

 Abdomen immaculate. Legs flavous. Winqs clear hyaline with 

 the stigma fulvous and nervures black ; basal uervure not con- 

 tinuous through tlie median ; second recurrent nervure emitted 

 distiuctly before the apex of the basal radial abscissa, rendering 

 the apex of the cubital cell longer below than above. 



Length 13-15 millim. 



Tibet: Tatung; (A. £. Ilohson); Punjab : Simla, iv. 07 (Col. 

 ]!^urse) ; Assam : Khasi Hills (Hothneg, type). 



Type in the Oxford Musenm. 



This is a distinct species, easily known from 0. fascomaculatus 

 by the apically areated metathorax, etc. Apparently allied to 

 0. mocsargl, Brauns (Arcli. Nat. Mecklenb. xliii, p. 89). though 

 with the arece apical and not discal. 



I have seen a male referred to this species by Cameron, in 

 Col. jVurse's collection, differing from the original description, 

 given above, in having the orbits, vertex and mandibular base 

 immaculate; the metanotum is scabrous and nitidulous with the 

 two longitudinal discal carinas apparent only at the apex ; the 

 " central and two lateral areae " represent the discrete ])etiolar 

 area and are not discal but apical, nor are they at all distinct ; 

 the scutellum is very finely punctate ; the abdomen subinfuscate 

 apically, its basal segment is remarkably constricted centrally 

 before the distinct postpetiole ; second segment with the thvridii 

 very deeply impressed, the third also basally constricted. 



This species is said by Mr. E. P. Stebbing in his notes on 

 Indian insects (Journ. Bombay Nat. Hist. Soc. xvi, p. 684) to 

 be parasitic upon the Xoctuid moth Acrongcta major, Brein. 

 (=an(edlna, But!.). 



262. Ophion bicarinatus, Cam. 



Ophion bicarinatus, Cameron, Spolia Zeylanica, lOOo, p. IiiO ( ^ ). 



2 . A dark red species, with the orbits broadly, face, scutellum 

 and pleurae, pale tlavous. Head with the face very finely punctate, 

 and the clypeal foveje large and deeply impressed. Antenmr pale 

 red. Thorax impunctate ; inesonotum with dark pubescence, the 

 notauli distinct and extending to its centre ; " the depression at 

 the base of the metajiotum is deep, roundly narrowed towards the 



