34 ICHNEUMON I D.T. 



apically, laterally and ventrally stramineous; basal segment a- 

 little longer than the second, broad, with the petiole narrow, 

 bicarinate to apex and laterally carinate to the spiracles ; terebra 

 2 millim. in length. Legs red ; apices of hind femora, of their 

 tibia) more broadly, and their tarsi (except basally), black. Winys 

 hyaline ; stigma black and basally paler, second recurrent nervure 

 broadly fenestrate. 



Length 7 millim. 



The stoutly bidentate mandibles and impressed prescutellar 

 fovea of this species render it very distinct from the last ; super- 

 ficially its colour will distinguish it at a glance. 



ASSAM: Khasi Hills (Kothney). 



Type in the British Museum. 



Genus HEMIGASTER, End. 

 Hemiyaster, Brulle, Hist. Nat. Ins. Hym. iv, 1846, p. 2GG. 



GENOTYPE, H. fcuciata, Brulle. 



Head short and broad ; eyes large and margined, with the 

 inner orbits stoutly carinate apically ; frons broadly and deeply 

 impressed, with its centre tricarinate ; face distinctly carinate 

 longitudinally in the centre ; mandibles apically bideutate. 

 Antennae somewhat elongate and incrassate towards their acumi- 

 nate apices. Mesonotum not trilobate, though with the notauli 

 distinct ; metanotal area3 complete, with large and linear spiracles. 

 Scutellum stoutly carinate. Basal abdominal segment with the 

 distinct petiole discally bicarinate, apically curved, and small 

 circular spiracles at base of its apical third part ; gastrocoeli of 

 second segment obsolete ; three basal segments very large, 

 remainder small ; terebra shorter than half the abdomen. Tarsi 

 spinose, with their claws simple. Areolet wanting ; radial cell 

 large and broad, with its apical half broadly lanceolate ; first 

 recurrent nervure of hind wings angled and intercepted. 

 Raiuje. India and Australia. 



The two species originally described in this genus have the 

 antennal joints much longer than broad, with the scape reflexed 

 and broadly emarginate externally ; the legs are of normal length 

 and breadth, with the fourth tarsal joint small and not bifid; the 

 mesothorax is broad and the metanotum declivous throughout. 



Its name is derived from the strongly developed three basal 

 segments, beneath which the remainder of the abdomen is tele- 

 scoped and, in the typical species, hidden ; consequently the 

 abdomen has a somewhat broad oval form, with the basal segment 

 somewhat elongately triangular and posteriorly broad, sides a 

 little concave, and the petiole rather broad. Brulle remarks (I. c. 

 p. 267) upon the comparative similarity between the Crypto- 

 gastrid Braconids and the present genus, also referred to by 

 Marshall (Brecon. d'Europ. i, p. 26). 



