brownish black or black and covered with short numerous black pu- 

 bescence excepting the extreme base almost bare from hairs, the rest 

 pale yellowish white and with pubescence intermixed with very few 

 scattered inconspicuous black hairs, these hairs on the hind tibiae longer 

 than those on the middle one which bears two unequal brownish black 

 rather short spurs, and at the outside of the former there is a Long 

 conspicuous fringe ; tarsi all black, covered with short dense black pu- 

 bescence, and bearing black claws and dull yellowish brown pul villi. 



Abdomen stout, broader than the thorax, and longer than the 

 head and thorax (including the scutellum) together, slightly narrowed 

 towards the anal end where it has broad rounded margin. Dorsum 

 black, very slightly obscured by a brown tinge, with distinct grey to- 

 mentose rather broad bands on the posterior borders (through the whole 

 width) of the segments except on the seventh segment, covered with 

 close black pubescence which on the sides (about the lateral fourth of 

 the grey bands) of the first three segment, and on the middle thirds 

 of the grey band of the fifth segment is silvery white ; the silvery white 

 pubescence on the fourth and fifth segments extending in the middle 

 as a short triangle not reaching the anterior borders. Ventre black, 

 covered with grey tomentum and short silvery white pubescence which 

 is intermixed with some inconspicuous blackish hairs about the middle 

 thirds on the basal four segments, and which becomes wholly black on 

 the last three segments. 



Length : 1 7.5-19 mm. 



Male. Browner, the abdomen somewhat conical without grey 

 tomentose bands, the wings quite clear, the scutellum brownish black 

 similar to the thorax which has no stripes, and the fore tibiae more 

 or less yellowish only about the basal third. 



Head large, broader than the thorax and a little shorter than it, 

 more arched than in the female. Frontal triangle somewhat elongate 

 triangular, bark brown, slightly elevated in the middle where there is. 

 an indistinct fine sulcus which is only conspicuous about lower half- 



