24S 



which are connected by a narrow ashy grey tomentose posterior 

 margin of the disc with one another so that the posterior border of 

 the thorax has a somewhat distinct whitish band, the pubescence on 

 the postalar callt mainly black but on the outer margin there is a 

 distinct white tuft composed of very dense rather long hairs straightly 

 directed behind ; scutellum large but rather short, dusted with whitish 

 grey and covered with dense white or pale orange yellow pubescence. 

 Pleurae evenly obscured by ashy grey tomentum, and covered with 

 long white pubescence, and on the prothorax and on the postero-upper 

 borders of mesopleurae and of metapleurae there is a distinct dense 

 white tuft. 



Wings apparently longer than the thorax and abdomen together, 

 hyaline but distinctly obscured by brownish tinge especially on the 

 apical fore border as far as the upper branch of the cubital fork, with 

 veins and stigma dark brown ; all the posterior cells widely open, 

 discal cell comparatively narrow but longer than the second posterior 

 cell, and anal cell closed a little before the wing-margin ; upper branch 

 of the cubital fork with a distinct recurrent veinlet (in some specimen 

 wanted). Squame in the alar pair yellowish ashy grey with black 

 margin and short black fringe, in the thoracal pair brown with darker 

 margin and brownish fringe ; the tuft on the angle between the alar 

 and thoracal pairs long and blackish brown. Halteres brown with 

 darker knob which has paler apex. 



Legs black, with tibiae white but black at the apices and with 

 the extreme apex of the femora yellowish ; front coxae stout, about 

 two-thirds as long as the front femora, obscured by ashy grey to- 

 mentum, and covered with this white puebscence which becomes shorter 

 towards the apice ; front femora slightly obscured by greyish to- 

 mentum leaving the broad convex finely transversely striolate shining 

 bare subfemoral space, inner margin of the bare space with a very 

 short black ciliation ; pubescence on the outer side of the front femora 

 long, rather dense and blackish, on the innerside much shorter but 



