492 JOUENAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXI. 



seo-ment smooth and shining, the median groove very indistinct. First 

 recurrent nervure received beyond one-third from the base of the second 

 cubital cell. 



S . Clypeus much longer than broad, rounded at the apex and armed 

 with three small teeth. Apical joint of flagellum shorter than the penulti- 

 mate and only feebly curved ; antennae inserted about half as far again 

 from the anterior ocellus as from the base of the clypeus. Pygidial area 

 twice as along as broad, truncate at the apex, the sides parallel. 



Habitat — Colombo, Ceylon ( Wickivar). 



I have not seen specimens answering to the description of emortualis, 

 but am inclined to treat it as a variety as Saussure suggests. The ground 

 colour of humhertiana varies considerably, the black tending to be more or 

 less replaced by ferruginous which is the normal ground colour in liscosus, 

 Sm. Bingham treats viscosus as a synonym of huwbertiana but the lamina 

 of the clypeus is much boarder and more distinctly emarginate. I 

 consider t\v&t flavopicta, Sm. is probably a local race differing in the shallow 

 puncturation, and the much smaller lamina of the clypeus. But for the 

 present it is better to keep this form distinct. I have only seen Jlavopicia 

 from West and North- West India, viscosus from Bengal and Jiumbertiana from 

 Ceylon. Bingham, however, gives Assam and other localities in N.-E. India 

 for Jiacoincta, but possibly his specimens may have been incorrectly 

 identified. The locality Barrackpore for Jlavopicta is not confirmed by 

 any specimen npw in the Eothney collection. 



Cerceris humhertiana Sauss. subsp. viscosus Sm. 



Cerceris viscosus Sm. Trans. Ent. Soc. London, p. 40, 1875, $ . 



Cercevus rufinodis Sm. Trans. Ent. Soc. London, p. 41, 1875, S . 



(S . Differs from typical humbevtiana in the shape of the lamina of the 

 clypeus, which is about half as broad again at the base as long. The 

 usual ground colour is ferruginous. 



S . This sex does not differ appreciably from typical humhertiana. The 

 ground colour is usually black with a red petiole. 



Habitat — Bengal. 



Cerceris Jlavopicta Sm. 



Cerceris Jlavopicta Sm. Cat. Hym. B. M. IV., p. 451, 1856, 5 S • 

 Cerceris sulphurea Bingh. Fauna Brit. India Hymen. I., p. 305, 1897, 

 ^ S (nee Cameron). 



$ Nigra ; antennis anoque rufo-testaceis ; clypeo, fronte, scapo, genis, 

 pronoto, tegulis, scutello, postscutello, mesopleuris, segmento mediano 

 macula magna utrinque, segmentis dorsalibus 1-4 macula magna utrinque, 

 quinto facia lata, pedibusque flavis ; alis hyalinis, apice infuscatis ; clypeo 

 lamina libera, porrecta, apice truncata ; mesopleuris haud dentatis ; 



