60 SYEPHID.?:. 



basal half of anterior femora and more than basal half of hind 

 pair, more than apical half of hind tibiae and all tarsi, wholly 

 black ; remainder of legs orange. Pubescence mainly orange- 

 yellow, but black on black parts of femora, and a friuge of tiny 

 black bristles down binder side of hind tibiae and also on apical 

 half on inner side. Wings distinctly yellowish ; stigma darker ; 

 squamag and halteres orange. 



Length, 14 mm. 



Described from two c? d" in the Indian Museum. Above Tura, 

 Garo Hills, Assam, 3500-3900 ft., ix. 1917 (Mrs. Kemp). Avery 

 striking and handsome species. Two $ $ and a headless 

 specimen from the lower ranges, Khasi Hills, 1878 (Chennell), iu 

 the British Museum. 



48. Dideoides ovata, Brun. (PI. I, figs. 16, 17.) 



Dideoides ovuta, Brunetti, Rec. lud. Mus. ii, p. 54 (figs., abd. (^ $ ) 

 (1906). 



6 $ . Head, S '• fii^e moderately produced above mouth and 

 just below the antennae; in depth descending only a little below 

 eyes; face and fro ns bright yellow, with moderately thick yellow 

 hair, which above the antennae is replaced by black liairs. Eyes 

 touching for half the distance from top of frons to the triangular- 

 elongated vertex, which is black with black hairs and prominent 

 reddish ocelli ; eyes with close gi-e\' pubescence. Antennae reddish- 

 brown, situated on a tawny (darker on upper side) protuberance : 

 3rd joint of antennae darker on upper side, arista orange, bare ; 

 mouth and proboscis black, latter with some grey liair at tip ; back 

 of head greenish-grey ; posterior orbit of eyes with a thick fringe 

 of short bright yellow hair, of equal length all round. In $ , 

 frons with a broad greenish-black stripe from vertex down to and 

 enclosing upper part of antennal protuberance, the black hairs 

 being thicker than in the <S . Antennae nearly all black except 

 under side of first two joints, and under side of 3rd at base ; arista 

 more brownish than in the S ; pubescence of eyes almost 

 yellowish, especially on lower part; rest as in ,5. Thorax: 

 dorsum dull greenish-aeneous with thi'ee central, narrow, well- 

 separated, not very distinct brownish lines reaching from anterior 

 nearly to posterior margin ; sides concolorous, rather darker 

 beliind; with a broad yellow vertical stripe just in front of wing, 

 descending to and terminating on the sternopleura, this stripe 

 bearing a rather thick fringe of bright yellow hair. In $ all 

 the pleurae dull greenish-yellow, and the pubescence is rather 

 moi*e abundant. Dorsum covered w^ith soft short yellow hair, 

 which round the wing-insertion is briglit orange. Posterior 

 corners of dorsal surface of thorax forming on each side an orange 

 elongated callosity with bright orange-brown hair. Scutellum 

 rather dull orange-yellow, covered with soft black han-s. 

 Metanotum black. Abdomen black, with an unbroken, deep brown 

 raised edge around the entire dorsal surface, closelv beset with 



