PRISTOMERUS. 51 1 



apically broadly rounded, strongly transverse and, like the 

 strong mandibles, entirely testaceous, the latter with the lower 

 tooth longer. Antennas broken, broadly separated and black, with 

 the scape and the three elongate basal flagellar joints testaceous. 

 Thorax shining and distinctly punctate ; notauli entire and deeply 

 impressed; sternauli basally strong and elongate; metathora'x 

 with complete, though not strong, arese ; areola hexagonal, half 

 as long again as broad, and emitting the costulse nearly from its 

 base ; basal area very small ; petiolar area trans-strigose, discrete 

 and basally bisinuate ; spiracles small. Scutellum black and sub- 

 convex. Abdomen black, with the anus indefinitely paler; two 

 basal segments deplauate and finely aciculate, the remainder ver^ 

 strongly compressed and subglabrous ; the first basally petiolate, 

 with its spiracles but slightly beyond the centre ; terebra two- 

 thirds the length of the abdomen and apically sinuate. Legs 

 slender and testaceous, with the hind femora a little darker ; hiud 

 tibiae flavescent, with their apices and a subbasal mark iufuscate 

 hind femoral tooth minute but distinct, followed by no serration. 

 Wings hyaline and not narrow ; radix and tegulaa testaceous, 

 stigma luteous and large; subrnarginal nervure shorter than its 

 distance from the second recurrent ; basal nervure continuous ; 

 lower wing with the median nervure strong to base, the recurrent 

 longer than the basal abscissa of the radius, and the straight 

 nervellus not geniculate or intercepted ; remaining nervures 

 obsolete. 



Length nearly 5 millim. 



UNITED PROVINCES : Bhanwar, Gonda district, xi. 07 (type) ; 

 CENTRAL PROVINCES : Saugor (Pusa coll.). 



Type in the Indian Museum. 



Tribe PORIZONIDES. 



This tribe is very easily recognised by its triangular radial cell, 

 the very broad stigma, and comparatively small abdomen ; no 

 hesitation can be experienced respecting its members if it be 

 borne in mind that, in addition to the above features, the median 

 nervure of the hind wings is entirely wanting between the 

 nervellus and the base, and that in the front wing the basal 

 nervure is very distinctly thickened at its point of junction with 

 the costa, forming an often not inconspicuous pseudostigma. 

 The two latter points at once distinguish it from the PRISTO- 

 MERIDES, CREMA.STIDES, and PLECTISCIDES, while from the remainder 

 of the OPHICMSTN^E the large and broadly triangular stigma and 

 not apically produced metathorax render it very different. 



It has been subdivided into a score of genera, for the most 

 part of doubtful stability, of which only two have hitherto been 

 noticed in our fauna, no doubt owing rather to the lack of 

 observation and collection of such small insects than to the 

 absence or rarity of specimens. 



