MONOGRAPH OF THE WASPS OF BRITISH INDIA. 489 



segment smooth and shining, the median groove indistinct. First recur- 

 rent nervure received at the middle of the second cubital cell. 



Ferruginous ; clypeus, front and abdominal segments 3-5 bright yellow . 

 Wings hyaline, tinged with yellow, a small fuscous cloud at the apex ; 

 nervures ferruginous. 



1^ . Olypeus nearly twice as long as broad, narrowly truncate at the 

 apex. Antennse inserted twice as far from the anterior ocellus as from the 

 base of the clypeus, the second joint of the flagellum longer than the third, 

 the apical joint distinctly curved and truncate at the apex. Posterior 

 ocelli as far from each other as from the eyes. First abdominaL segment 

 twice as broad as long ; pygidial area with parallel sides, about half as 

 long again as broad. Head and thorax coarsely and closely punctured, 

 sparsely on the scutellum ; the triangular space at the base of the median 

 segment smooth and shining, with a distinct median furrow ; the abdomen 

 deeply but not very closely punctured. Yellow ; the vertex, prothorax, 

 enclosed area at the base of the median segment and the base of 

 abdominal segments 3-6 black ; antennae, median segment, first abdominal 

 segment and the base of the second segment ferruginous. Legs ferru- 

 ginous variegated with yellow. Wings as in the female. 



Habitat. — Quetta (Nurse). June and July. 



I am not sure that I am correct in my identification of this species, the 

 original description being of the male only, and not mentioning details of 

 structure. The male from Quetta differs from the typical form in having 

 much of the ferruginous colour replaced by yellow, but otherwise agrees 

 well with the figure. The type was taken in the deserts of the Sir Daria. 



Cerceris acuta Rad. 



Cerceris acuta Rad. Fedtschenko Reise, Turkestan, p. 54, 1877. $ . 



5 . Nigra ; mandibulis, apice excepto, clypeo, margine interiore oculo- 

 rum late, carina frontali, scapo, macula post oculos, vertice fascia curvata, 

 pronoto, mesopleuris maculis duabus, scutello, postscutello, segmento 

 mediano maculis magnis lateralibus, segmento dorsali secundo basi, tertio, 

 quarto, quintoque fascia emarginata apicali, segmento ventrali secundo 

 tertioque, coxisque flavis ; flagello, tegulis, abdomine pedibusque f erru- 

 gineis ; alis subhyalinis, apice infuscatis ; venis fuscis, stigmate testaceo ; 

 clypeo lamina libera porrecta, bilobata ; mesopleuris haud tuberculatis ; 

 segmento ventrali secundo area basali elevata nulla, segmento mediano 

 area basali longitudinaliter rugoso. 



Long. 13 mm. 



5 . Lamina of the clypeus free from the base, porrect, broader than 

 long, very deeply incised ; the apical margin below the lamina produced 

 into a point. Antennae inserted more than twice as far from the auterio r 

 ocellus as from the base of the clypeus, the second joint of the flagellum 



