200 lOUMICIU.K. 



11- or 12-jointed, club of flagellum massive, iorined of the apical 

 three joints, about as long as or longer than the remainder of the 

 flagellum ; eyes lateral, oval. Thorax somewhat long and narrow, 



^x 



Fig. 7"). Monoiiiorium latinode, > . a. Head. 



not much broader in front than posteriorly ; pro-mesonotal suture 

 obsolete, meso-metanotal suture deeply marked, metauotum trun- 

 cate, posteriorly unarmed, the basal portion passing into the apical 

 portion by a rounded curve ; legs in the typical species short, in 

 others long and slender. Pedicel : the 1st node shortly petiolate 

 anteriorly, often markedly higher than the 2nd node ; abdomen 

 oval, truncate or emarginate anteriorly. 



i? . Head and pedicel as in the $ , the thorax narrow but more 

 massive, the mesouotum long and slightly convex, slightly gibbous 

 in front, overhanging the pronotum ; scutellum comparatively 

 large ; metanotum roundly curved posteriorly, the sides forming 

 two rounded obtuse ridges with the space between them con- 

 cave, slightly flat. Abdomen very massive, somewhat cylindrical. 

 Wings : the fore wing with one cubital cell. 



d . In the Indian species the head above the ocelli is remark- 

 ably flat and broad, the eyes very large, the mandibles powerful 

 and toothed ; the clypeus broad and strongly convex ; antenna 1 

 filiform, 13-jointed. Thorax and wings much as in the $ , the 

 metauotum narrower, the mesonotum without anv impressed lines. 

 Pedicel much more massive : the nodes larger, the petiole of the 1st 

 node very thick, gradually decreasing in size up to its attachment 

 to the thorax ; abdomen more massive, but truncate or emarginate 

 at base as in the $ . 



Key to the S^tecics. 



A. Head more or less rugulose, opaque. 



a. Seen from above 2nd node distinctly 



broader than 1 st node. 

 a'. Pro-mesonotum distinctly longer than 



broad. 



ft z . Yellow, the abdomen posteriorly 

 black. 



