47 



broader than the third posterior' cell ; fourth posterior cell contracted 

 at the margin of the wing at where the width is about as its basal 

 width ; anal cell is usually closed at the wing-margin but in sometimes 

 conspicuously open ; upper branch of the cubital fork without any 

 veinlet. Squamae pale brown with darker margins, and with a fairly 

 obvious fringes ; halteres blackish brown. 



Legs reddish yellow, knees darker, the base of the hind femora 

 and the four apical joints of the tarsi blackish ; front coxae moderately 

 dilated, slightly longer than half the length of the' fore femora, furnished 

 with a fairly abundant pale pubescence which becomes longer at the 

 upper basal part ; fore femora (without the trochanter) as long as the 

 tibiae, with a somewhat sparse blackish pubescence which is usually 

 inconspicuous but on the upper margin is fairly conspicuous and pale 

 yellow ; middle femora sometimes with an irregular blackish spot on 

 the lower base, shorter than the tibiae, pubescence brownish, fairly 

 conspicuous, on the lower margin there are rather abundant longer 

 paler hairs ; hind femora distinctly shorter than the tibiae, not very 

 dilated, the basal blackish part sometimes extending near the apex in 

 the inner surface, furnished with rather abundant yellowish pubescence 

 which becomes longer at the lower margin ; fore tibiae very slightly 

 covered, at the middle, with very short blackish brown pubescence ; 

 middle tibiae covered with very short inconspicuous blackish brown 

 pubescence and bearing two subequal blackish spurs ; hind tibiae fur- 

 nished with abundant blackish pubescence and with two black fringes 

 of which the upper one is much conspicuous, and bearing two rather 

 slender blackish spurs ; tarsi with blackish claws and yellowish pulvilli. 



Abdomen broad, rather short and gradually narrowed apically 

 with a round apex, appearing a variable in colouring ; in some speci- 

 mens it is quite blackish, while in the others it is quite yellowish, in 

 each case yellowish tomentum decorates nearly throughout the surface. 

 Dorsum slightly convex, the apical part slightly sloping below ; the 

 two basal segments pale orange yellow, the first segment with a large 



