81 



aiong the middle basal cell ; the upper branch of the cubital fork with- 

 out any veinlet ; the postical vein very faintly clouded; the anal cell 

 open, but in a specimen caught at Soyorofuka closed at the margin of 

 wing. Squamae blackish brown with a obvious golden fringe in the 

 alar pair near the angle. Halteres blackish brown with the paler tip. 



Legs black, moderately shining, with the basal half of the first 

 ioint of the posterior tarsi and with the basal part of the middle tibiae 

 obscurely reddish ; front coxae about two-thirds as long as the femora, 

 and bearing long pale yellow hairs which gradually become shorter 

 and darker towards the apex ; front femora with rather abundant 

 pubescence which is nearly all black, the pubescence on the inner 

 surface shorter than that on the outer surface ; the middle femora with 

 a short black pubescence but with long yellowish hairs at the basal 

 two-thirds ; hind femora with similar pubescence, which is less numerous 

 and contains some yellowish long hairs at the lower margin of the basal 

 two-thirds ; for tibiae with a very short blackish pubescence ; middle 

 tibiae with a similar pubescence and with two not quite equal blackish 

 spurs ; hind tibiae with the dense black fringes of which the antero- 

 dorsal one is coarser and longer, and with two short yellowish brown 

 or blackish spurs ; pulvilli yellowish brown. 



Abdomen much longer than the thorax and head together, and 

 much wider than the thorax, with rounded posterior margin, and with 

 the apical half sloping downwards, moderately shining black with yellow- 

 ish markings and with a fairly abundant pubescence. Dorsum slightly 

 convex ; first segment with somewhat triangular yellowish lateral mark- 

 ings which are broader hindwards, and with an inconspicuous small 

 triangular similar coloured spot in the middle of the posterior margin ; 

 second segment with somewhat large yellowish lateral markings and a 

 conspicuous flat-triangular paler spot, the black portion at the anterior 

 margin as wide as the posterior margin of the black portion of the 

 preceding segment and at the posterior margin hardly reaching to the 

 lateral ends of the posterior margin of the segment and the lateral 



