% ICilNEUMONID.E. 



thorax very short, with long hairs; areola strongly transverse, 

 petiolar area large and carinate throughout, apophyses conspicuous. 

 Scutellum strongly deplanate, scabrously punctate and subquadrate, 

 with the apical angles rounded ; its base hardly discrete from the 

 inesouotum, its sides with long hairs and strongly bordered to 

 the apex which is, like that of the postsciitellum, red. Abdomen 

 obconical, dilated from base to apex, with white hairs and densely 

 punctate, black, with the apex of the first, whole of second and 

 (excepting two basal dots) of the third segment, brick-red ; 

 basal segment coarsely punctate, petiolate to the prominent 

 central spiracles and thence parallel-sided to apex ; venter black, 

 with incisures flavescent ; hypopygium broadly rounded and 

 covering base of the stout but hardly exserted terebra. Legs 

 black, shining and slender ; tibiae and tarsi white, with the apical 

 two-thirds of the hind tibiae, whole of their tarsi, and apical three 

 joints of the anterior pairs, black; claws small and strongly 

 pectinate. Wings distinctly infumate and somewhat ample ; radix, 

 tegulae, and stigma infuscate ; nervures conspicuous. 



Lengtli 16 inillim. 



ASSAM : Shillong, 6000 ft., ix.03 (Rowland Turner). 



Type in the British Museum. 



I have seen three females onlv. 



Tribe BASSIDES. 



This tribe appears to be very closely related to the PIMPLINJE 

 in its sessile and often coarsely sculptured abdomen, which is, in 

 the typical forms, very distinctly impressed in the same manner, 

 though transversely and not obliquely, as in the case of Glypta 

 and many Pimpla. It forms, however, an entirely homogeneous 

 group, at once distinguished from all other TRYPHONINJE bv its 

 normal scutellum and apically bifid upper mandibular teeth ; the 

 peculiar conformation of the strongly deplanate and sessile basal 

 segment is also distinctive, and the general facies is so peculiar 

 that, with a very little experience, it may be recognised at a 

 glance. 



Bassus formed Gravenhorst's eighth group and was divided by 

 him from Metopius and the PIMPLIN^E with convex abdomen on 

 account of its deplanate abdomen, with the basal segment flat and 

 parallel-sided ; in it he placed the genera Euceros, Orthocentrus, 

 and Bassus, of which the last two have the antennae not centrally 

 incrassate, and the latter differs from Orthocentrus in its obviously 

 more slender legs ; from the remainder of the TKYPHONIK^: these 

 three genera were said to differ in the entirely sessile abdomen. 

 In 1855 Holmgren discovered that in Gravenhorst's restricted 

 genus the upper mandibular tooth was apically cleft, while in all 

 other Tryphonids, except certain Metopius, it is entire ; hence he 

 erected a group for the sole reception of this genus under the name 

 TBYPHONIDES SCHIZODOXTI. Desvignes, who in 1862 described 



