20 THE ENTOMOLOGIST. 



TORBDA VIOLACEIPENNIS, Sp. nOV. 



Nigra, facie, orbitis oculorum late thoraceque albomaculatis ; pedi- 

 bus fulvis ; coxis nigris, albomaculatis ; alis violaceo-fumatis ; nervis 

 stigmateque nigris. ? . Long. 25 mm. ; terebra, 10 mm. 



Hab. Khasia (coll. Rothney). 



ToRBDA FEMORATA, Sp. nOV. 



Nigra, late albo-maculata ; pedibus fulvis ; coxis trochanteribusque 

 albis ; coxis, femoribus dimidioque apicali tibiarum posticarum nigris ; 

 tarsis posticis albis, basi nigro ; alis fusco-hyalinis, nervis stigmateque 

 nigris, $ . Long. 22 mm. 



Hab. Khasia (coll. Rothney). 



ToRBDA MACULIPENNIS, Sp. nOV. 



Nigra, capite, thorace abdomineque albo-maculatis ; pedibus fulvis ; 

 coxis anticis albis, posterioribus nigris, basi albis ; alis hyalinis, stig- 

 mate uervisque nigris. ? . Long. 14 mm. ; terebra, 6-7 mm. 



Hab. Khasia (coll. Rothney). 



CoLGANTA, gen. nov. 

 Areolet large, wider above than below ; tbe transverse basal ner- 

 vure interstitial or nearly so ; in the hind wings the transverse median 

 nervure is broken below the middle ; the radial cellule elongate, narrow. 

 Antennae stout, stouter at the apex than at the base ; the basal joints 

 of the fiagellum greatly elongated. Eyes large, almost parallel, widely 

 distant from the base of the mandibles. Clypeus not clearly separated 

 by a suture from the face ; the mandibles short, thick, bidentate at the 

 apex. Labrum minute. Palpi long. Parapsidal furrows obsolete. 

 Scutellum keeled laterally. Median segment with two curved keels at 

 the base ; its spiracles large, linear, oblique. Petiole longer than the 

 second segment, distinctly dilated at the apex ; the spiracles are placed 

 near the base of the post-petiole, as in Ichneumon ; there are eight 

 segments ; the ovipositor projects. Legs stout ; the tarsi spinose ; the 

 claws large, curved, simple. In the only known male the antennae are 

 serrate, densely pilose, and taper perceptibly towards the apex. The 

 head is obliquely narrowed behind, and has the occiput sharply keeled. 

 The pterostigma is elongate, narrow. 



The systematic position of this genus is not very clear. Only 

 two views are tenable ; it either forms a new tribe, or it forms a 

 new subtribe of the Cryptina. It has a furrow on the lower part 

 of the mesopleuriB, as in the Cryptina, and the female has the 

 exserted ovipositor of that group, but it wants the parapsidal 

 furrows ; the transverse cubital nervures are oblique, and con- 

 verge towards the bottom, while in the Cryptina they are either 

 straight or converge towards the top. The form of the metanotal 

 keels is different from what it is with the Cryptina ; in that 

 group they are straight, transverse, and do not form arese. In the 

 present group they are interrupted, and bent backwards, so that 

 two complete areae are formed. 



