Manchester Memoirs, Vol. xliii. (1899), No. 3. 55 



diverging at the apices. The hinder tarsi are slightly 

 spined. 



AULACUS BITUBERCULATUS, Sp. nov. 



Niger; pronoto mesonotoque cum scutello rujis; alis 

 hyalinis, fusco-bifasciatis. ? . 



Long. 15 ; terebra 14 mm. 



This genus is an addition to the Hymenoptera of 

 Continental India, although two species are known from 

 Ceylon. These differ in many respects from A. bituber- 

 culatus. 



Antennae black, brownish towards the apex on the 

 under side ; the third joint of the length of the basal two 

 united; the fourth as' long as the second and third 

 united. Head black ; the vertex shining, bearing shallow, 

 scattered punctures ; sparsely pilose ; the vertex near the 

 edge behind has on either side a distinct, bluntly triangular 

 tubercle. Front sparsely covered with short, white hair ; 

 a short, indistinct keel in front of the ocelli ; the clypeus 

 closely, shallowly, irregularly punctured ; fringed at the 

 apex with long, white hair. Mandibles piceous in the 

 middle, the base opaque, closely rugose. Thorax coarsely 

 rugose ; the propleurae, pronotum, mesonotum and scutel- 

 lum rufous ; the middle of the mesonotum coarsely, trans- 

 versely striated. The sides of the scutellum smooth ; the 

 middle with a few, widely separated, stout, transverse 

 striations ; the apex of the scutellum is black. Median 

 segment stoutly irregularly reticulated. Propleurae irregu- 

 larly and strongly rugose ; the mesopleurse opaque, irregu- 

 larly, and not very strongly, rugose below ; the oblique 

 hollow over the middle coxae striated, more distinct on the 

 lower than on the upper part ; the middle behind 

 smooth, the upper irregularly reticulated ; the lower part 

 stoutly irregularly striated. Metapleurae rugose, below 



