85 



with four purplish spots and rather broad similar-coloured hind margin 

 which is not very higher up ; the middle spot smallest, rounded but 

 with a pointed angle at the anterior margin ; the three foremarginal 

 spots larger and placed in equidistant, the middle spot very rounded, 

 not touching the eye-margin and placed just half-way down the eye but 

 slightly above the isolated middle spot, and the lower spot placed 

 above the end of the marginal band and with the somewhat flat upper 

 margin, while the upper spot is somewhat quadrate and placed about 

 the middle of the frontal margin ; the three lower spots form an 

 equilateral triangle. 



Thorax very short, about as long as its width, shining black 

 with a black pubescence, very slightly obscured by a brownish tomen- 

 tum, without any stripes ; humeri at the lower margin slightly reddish 

 brown ; pubescence all black, long, fairly abundant and almost always 

 scattered uniformly throughout the surface, but slightly denser at the 

 sides ; scutellum rather broad, black inconspicuously dusted with brownish, 

 and bearing a scuttered long black pubescence ; pleurae black, some- 

 what obscured by a greyish brown dust which becomes rather conspicuous 

 on the prothorax, mesopleurae, metapleurae, pteropleurae and the upper 

 part of the sternopleurae, these parts being rather densely covered 

 with long black hairs, and the remaining parts furnished with a fairly 

 abundant shorter black pubescence. 



Wings rather large, but shorter than the thorax and abdomen 

 together, hyaline with the triangular cross-band and with a narrow 

 apical spot ; the former well-defined; broad, its outer side near the 

 base of the upper branch of the cubital fork angularly notched, the rest 

 somewhat straight and ending at before the end of the third veinlet from 

 the discal cell ; the inner side of the cross-band slightly convex about 

 the base of the fourth posterior cell, and extends from the end of the 

 outer side to the basal marking, running along the discal vein and 

 occupying throughout the upper basal cell ; the apical spot very narrow, 

 slightly notched at both the radial and the upper branch of the cubital 



