57 



merous yellowish brovvn pubescence which is longer than that on the 

 disc of the thorax. 



Wings rather large, about equal as long as the body, quite 

 clear, with the well-defined blackish anterior border which is broadened 

 at the base of the wing, but expanding only to the extreme base of 

 the basal cell, and is extending to just before the wing-apex ; cross- 

 band broadest in all of our species of the genus, its outer margin 

 usually convex about the cubital vein and concave at the third veinlet 

 from the discal cell, its inner margin from the tip of the praefurca to 

 the lower end of the lower cross-vein usually straight, and running 

 along the basal portion of the upper branch of the postical fork and 

 then angularly bent downwards at the base of the lower branch of the 

 postical fork, reaching the apex of the anal cell ; postical cell at the 

 middle somewhat distinctly clear, this clear portion extending from the 

 posterior margin (at where it is broad and almost quite clear) to the 

 base at where it is hardly conspicuous and very narrow; anal cell 

 usually closed just before the margin, but sometimes distinctly open ; 

 fourth posterior cell usually contracted at the margin ; discal cell 

 always no hyaline patch, but in only one specimen from Tokio very 

 inconspicuous pale spot in the middle ; the upper branch of the cubital 

 fork without any recurrent veinlet. Squamae usually smoky brown, 

 with the blackish margins, and bearing a black fringe on the alar pair 

 but on the thoracal pair with a very inconspicuous yellowish fringe ; 

 halteres brownish black, rather small with the very thin stalk. 



Legs blackish brown to black, excepting of the bases of the 

 middle and hind tarsi and of the middle tibiae pale brovvn to reddish 

 brown ; fore coxae longer than half the length of the femora, covered 

 with long pale yellow hairs ; fore femora including the trochanter a 

 little longer than the tibiae, bearing blackish pubescence which becomes 

 longer towards the outer and upper surfaces ; fore tibiae very slightly 

 dilated about the middle, rather densely covered with very short depres- 

 sed blackish hairs ; middle femora including the trochanter about as 



