168 , CYBTIDJE. 



form, with the black colour of the 2nd segment, a conspicuous, 

 clear-cut, dorsal band of irregular width ; 6th segment wholly 

 black; on each of the 2nd, 3rd, 4th, and 5th segments is u 

 subquadrate black spot placed contiguous to the anterior and 

 lateral margins. Venter yellowish, the segments faintly emar- 

 ginate with brown, unmarked. The whole abdomen bears brown 

 or yellow pubescence, concolorous with the colour of the surface. 

 Leys wholly yellowish, except the blackish coxae. The middle 

 femora and tibiae are distinctly longer than the fore pair, and the 

 hind pair are proportionately longer than the middle pair. Tarsi 

 long; the anterior ones about equal in length, but the hind pair 

 are distinctly longer, proportionately. The tibiae end in a well- 

 developed (almost Bibio-like) blunt spine on the front side, with 

 a smaller one (easily seen on the hind legs only) on the inner side. 

 The pulvilli, three in number, elongate, very greatly developed ; 



Fig. 12. Pterodontia dorsolineata, Brun., wing. 



the claws very long and strong, curved. Wiwjs colourless, veins 

 yellow, venation normal ; upper squamae quite small, nearly 

 circular, lower pair very large, with a short yellow fringe, both 

 practically colourless; halteres black. 



Length, 7 mm. 



Described from a single specimen in the Indian Museum from 

 Mayinyo, 3800 ft., near Mandalay, Upper Burma, v. 1910 (H. L. 

 Andrewes). 



This species must be very near and possibly identical with 

 Tcaslimirensis, Licht. 



Genus ONCODES, Latr. 



Oncodes, Latreille, Precis Caract. Gen. Ins. p. 154 (179G). 

 Henops, Meigen, Illig. Mag. ii, p. 226 (1803). 



GENOTIPE, Musca yibbosa, L.; by original designation. 



Head nearly all eyes, which are larger in c? than $ , bare ; 

 vertex very small ; two ocelli ; frons slightly produced ; proboscis 

 and palpi apparently absent, the aperture closed by a membrane. 

 Antennae placed at extreme lower part of head, 2-jointed ; 1st 

 joint short, thick, cylindrical ; 2nd oval, ending in a long thin 

 arista-like style, dilated at base, and with a hair-like bristle at 

 tip. Thorax spherical ; humeral, prealar, and postalar calli large, 

 but not very conspicuous ; pubescence moderately dense ; scutel- 

 lum large, with very deep rounded margin, leaving only a small 

 disc ; metanotum rather small. Thoracic squama3 enormous, with 



