1S2 



below, the top angle about 90 but slightly rounded, and the frontal 



^ 



angle obtuse ; when seen from in front wider than deep, the frontal 

 margin straight and as long as the facial margin, the frontal angle about 

 I 35> tne top angle about 80, the outer angle narrowly rounded and 

 the lower angle about 1 1 5 but rounded. 



Thorax slightly longer than wide with the rounded angles, ashy 

 grey or pale yellowish grey, hardly at all shining and not at all striped ; 

 pubescence composed of rather abundant dense short adpressed pale 

 yellowish grey hairs which become longer and more conspicuous above 

 the wing-bases and on the postalar calli down to the scutellum, and 

 there are usually no black hairs but very rarely intermixed all over 

 with very few suberect stiffer black hairs which are inconspicuous on 

 the disc (unless viewed sideways) ; humeri and praealar calli paler, and 

 furnished with numerous long shaggy pale yellowish hairs ; pleurae 

 dusted pale grey and bearing pale yellowish grey pubescence (amongst 

 which no black hairs are to be found) which becomes much longer 

 and denser at the posterior-upper margins of the meso-, ptero-, and 

 meta- pleurae. 



Wings quite hyaline, with the yellowish veins ; upper branch of 

 the cubital fork with a distinct rather longer recurrent veinlet near the 

 base ; posterior cells all widely open, and anal cell closed with a long 

 petiole ; discal cell slightly longer than the second posterior cell. 

 Squamae in the alar pair very slightly smoky with a reddish brown 

 margin ; thoracal pair whitish with a very pale yellowish white margin ; 

 the short fringes and the long angle-tuft pale yellow. Halteres dull 

 yellow. 



Legs pale orange yellow ; front femora covered with short whitish 

 pubescence (leaving a rather broad pale brownish yellow bare space on 

 the underside) which is intermixed with a few short black bristles on 

 the upper side, and on the inner margin of the subfemoral bare space 

 there is a short not dense fringe which is composed of black bristles ; 

 middle femora pale brownish yellow, covered with numerous short 



