Genus Orthopudomyia. 529 



with a diamond-shaped patch of tawny scales edged with a few 

 black scales and a bare space ; outside this are white and tawny- 

 scales arranged somewhat irregularly. The arrangement of the 

 scales varies considerably. 



Scutellum dingy yellow, clouded with black ; all three lobes 

 clad with rather long white narrow-curved scales. Scutellar 

 bristles brown. 



Wings clothed with black and white, broad spatulate in some 

 specimens, almost spindle-shaped scales in others. Costa black 

 scaled with white spots ; the first spot close to the base and 

 involving the base of all the long veins ; the second involves the 

 costal, sub-costal and first long vein ; the third involves the veins 

 as far as the fourth long vein. The fourth passes on to the base 

 of the first fork-cell and the fifth spot is very narrow and involves 

 the lower branch of first fork-cell ; there is a spot on the wing 

 field at the base of the second long vein and another on the upper 

 branch of the fifth vein near its base, and one at its apex and 

 another spot at the base of the second fork-cell. Supernumerary 

 and mid cross-veins form an obtuse angle towards the base. 

 Posterior cross-vein distant about four times its length from the 

 mid cross-veins. Pleurae dark brown, thickly covered with broad 

 flat white scales. 



Legs with the fore coxae pale, with creamy scales in the front 

 legs and hind and mid dark brown, with a few white scales ; 

 femora clad with purple scales freely mottled with golden \ on 

 the fore legs is a ring of golden scales a little before the apex 

 which does not include the upper face ; on the mid and hind legs 

 the scales at the apices of the femora are elongated, and give an 

 ill-marked feathered appearance to the legs ; the tibiae are 

 mottled purple and golden, and at the apices of all the tibiae is a 

 band of creamy yellow scales ; the base of the first tarsal and 

 next two tarsal segments on the fore and mid legs are banded 

 with creamy scales ; in the hind legs the base of the first tarsal 

 and second tarsal segment are banded, and the last three segments 

 are creamy white. Ungues equal and simple on all the legs. 



Abdomen covered with purple brown scales; each segment 

 bears on the dorsum two spots of white scales placed on either 

 side of the middle line and rather nearer the apex than the base ; 

 laterally there is a basal patch of white, apically a band of white 

 scales ; ventrally each segment is basally banded, and some of 

 the segments have a median white spot. 



Length. —5 mm. 



vol. iv. 2 M 



