1 



500 JOURNAL, BOMBAY NATURAL HLST. SOCIETY, J'ol. XXL 



of N. W. India from Arabia, which may be found to be the home of other 

 Karachi species also. 



Cerceris ine.vorabilis sp. n. 



$ . Flava, capite mesonotoqne nigris flavovariegatis : clyiDeo piano,, 

 eniarginato, prope angulos acute carinato, genis dente maximo armatis ;. 

 segmento mediano area basali nitida. 



Long. 13 mm. 



Clypeus short, flat, emarginate at the apex, with an acute oblique carina 

 on each side near the apical angles. Antennte inserted about half as far 

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

 joint of the flagellum almost as long as the first and third combined : the 

 carina between the antennae rather low, triangularly truncate at the apex. 

 Head broad ; the eyes diverging towards the clypeus, separated on the 

 front by more than two and a half times the length of the scape ; cheeks 

 very broad, nearly half as broad again as the greatest breadth of the eye, 

 armed with a very lorg stout spine. The whole insect closely, but not 

 very deeply punctured : the enclosed area at the base of the median 

 segment smooth and shining, divided by a longitudinal furrow. Pronotum 

 strongly depressed in the middle, subtuberculate on each side; mesopleurse 

 with two- very small spines in front of the intermediate coxte. First 

 abdominal segment short, nearly twice as broad as long ; second ventral 

 segment without a raised area at the base : fifth ventral segment not raised 

 on the margin ; pygidial area granulate, gradually narrowed from the base, 

 truncate narrowly at the apex, about three times as broad at the base as 

 at the apex. First recurrent nervure received near the middle of the 

 second cubital cell. 



Dull lemon yellow ; front, vertex and mesonotum black : the front below 

 base of the antennae, produced upwards in three parallel bands, the middle 

 one reaching the anterior ocellus yellow ; two oblique yellow bands on the 

 vertex ; two yellow longitudinal bands on each side of the mesonotum ; ■ 

 pygidial area fuscous. Wings hyaline, clouded at the apex, stigma 

 testaceous. 



Habitat — Karachi ( Comber). 



This may possibly be C. seraxcm-^is Had. but in the description of that 

 insect there is no mention of the large spine on the cheeks, which could 

 hardly have been overlooked. The present species is very near the last, 

 (ephippium), but the clypeus is narrower, especially on the apical margin, 

 the sculpture of the area at the base of the median segment is quite 

 different, the pygidial area is narrower at the apex, and the pronotum is 

 subtuberculate . 



Cerceris JlctcJteri sp. n. 



'2 . Flavo-ochracea : mandibulis a|:>ice nigris : alls hyalinis, apice 



