800 JOURNAL, liOMIiAY yATUBAL HIST. SOCIETY, Vol. XXI. 



Type in Oxford University Museum ex coll. Westwood. 

 Captain Boys collected in the Almora and other North-Western hill 

 districts. 



Cercerix instabilis Sm. 



Cerceris imtabi/h Sm. Cat. Hym. B. M. IV, p. 452, 1850. ? . 



Cerceris reloa: Sm. Trans. Ent. Soc. London, p. 41, 1875, J • 



5 . Ferruginea ; vertice mesothoraceque nigris ; clypeo, fronte, scapo^ 

 vertice linea curvata, pronoto, scutello, postscutello, segmento mediano- 

 utrinque, segmento dorsali secundo basi, tertio quintoque totis flavis ; alis 

 hyalinis, apice valde infuscatis ; clypeo apice emarginato angulis dentatis ; 

 mesopleuris hand tuberculatis ; segmento ventrali secundo area basali 

 minime elevata. 



(5 . Niger ; maculis flavis ut in femina dispositis ; segmento abdominal 

 primo, secundo, tertioque apice f errugineis ; clypeo apice late rotundato, 

 minutissime quadridentato. 



Long. 2,9 — 11mm. c?,8 — ^10 mm. 



5 . Clypeus broader than long, rather widely emarginate at the apex, 

 with a broad and slightly porrect tooth on each side at the angles of the 

 emargination. Antennte inserted less than half as far again from the 

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

 flagellum scarcely longer than the third. Eyes parallel on the inner 

 margins, posterior ocelli half as far again from the eyes as from each other. 

 First abdominal, segment distinctly longer than broad ; second ventral 

 segment with the raised area at the base not very distinct ; pygidial area 

 rugose, narrowed from the base, about half as broad again at the base as at 

 the apex. Closely, but not deeply, i)unctured ; the enclosed area at the 

 base of the median segment longitudinally striated. 



S . Clypeus nearly as broad as long, very broadly rounded at the apex 

 and armed with four minute teeth. First abdominal segment nearly twice 

 as long as broad ; the area at the base of the second ventral segment more 

 strongly raised than in the female. More deeply punctured than in the 

 female, the enclosed area at the base of the median segment punctured 

 and more or less longitudinally striated. Pygidial area a little longer than 

 broad, the sides almost parallel. 



Habitat. — Burma, Ceylon, and the whole of India, except the extreme 

 North-west. 



Apparently not as common in the hills as on the plains, but I have taken 

 it at 6,000 ft. in the Khasi Hills. The colour is very variable. 



Cercerh bifascinta Guer. 



Cerceris bifasciata Guer. Cnv. Iconog. Ilegn. Anim. Insectes, p. 443, 1829- 

 1844. PI. 71. fie. 9. 



