MONOGRAPH OF THE WASPS OF BRmSH INDIA. 807 



I cannot identify the species ; the figure is a tolerable representation of 

 C'.fortinata Cam., but does not agree with the description, which seems to- 

 point to a variety of C. instahilis Sm. •' Entierement fauve, ponctu6, avec 

 le devant de la tete, au-dessous de Finsertion des antennes, le premier- 

 article de celles-ci, la base des mandibules et les troisieme et cinquieme 

 anneaux de I'abdomen jaunes. Ailes un pen teintees de jaunatre avec une 

 petite tache brune au bout. 



L. 5 mil. Hab. le Bengale." 



The length given on the plate is 10 mm. 



On the whole I think there can be little doubt that the name should: 

 apply to C. instabilis Sm., over which it has priority. 



C'erceris abuensis sp. n. 



9 . Nigra ; mandibulis basi, clypeo, fronte, scapo, pronoto utrinque, 

 tegulis, postscutello, segmento dorsali secundo basi, tertio fascia apicali 

 late emarginata, quinto macula apicali, segmento ventrali tertio utrinque, 

 tibiis tarsisque albidis ; segmento abdominali primo, segmento ventrali 

 secundo, femoribusque ferrugineis ; flagello subtus fusco-ferrugineo ; clypeo • 

 subconvexo, margine apicali late truncato, dentibus duobus medianis 

 armato ; mesopleuris hand tuberculatis ; segmento mediano area basali' 

 oblique striata ; segmento ventrali secundo area basali elevata ; alis hyali- 

 nis, apice infumatis. 



S . Feminse similis ; segmento dorsali quinto immaculato, segmentO' 

 sexto fascia late flavida ; clypeo latitudine longiore, apice subtruncato ; 

 segmento ventrali secundo area basali minime elevata ; segmento ventrali' 

 sexto utrinque dente armato. 



Long. 5 , 8 mm. ; c? , 9 mm. 



5 . Clypeus much broader than long, coarsely punctured, broadly trun- 

 cate at the apex, with a narrow and shallow incision in the middle of the 

 apical margin, the angles of the incision produced into short, blunt teeth. 

 Antennae inserted nearly half as far again from the anterior ocellus as from 

 the base of the clypeus, the second joint of the flagellum about half as- 

 long again as the third. Eyes parallel ; posterior ocelli a little further 

 from the eyes than from each other. Pronotum not depressed in the 

 middle ; mesopleurfe without tubercles ; first abdominal segment as long 

 as broad, narrowed at the apex ; second ventral segment with a rather 

 feebly raised basal area ; pygidial area small, twice as broad at the base as- 

 at the apeX; gradually narrowed, less than twice as long as the breadth at 

 the base. Closely and deeply, but not very coarsely punctured ; the 

 enclosed area at the base of the median segment coarsely obliquely striated 

 on the basal half, indistinctly striated at the apex, the median groove 

 indistinct. 



S • Clypeus longer than broad convex ; the apical margin almost 



