lit) SYEPHID^. 



extending from base of 3rd vein to anterior cross-vein. Halteres 

 dirty brown. 



Length, 12 mm. 



Redescribed from the tiipe Si in fair condition, in the British 

 Museum, from Celebes; and from one $ in the Indian Museum 

 named by Bigot and undoubtedly of this species. There is a 

 further specimen from the Nilgiris, in wretched condition, 

 3000 ft., 13. ix. 1917 {Ncujnath). 



Walker's description of the 5 abdomen, "2nd yellow baud not 

 arched," does not quite apply, but the cross-band on the wings is 

 sufficient to separate the species from all others. 



91. Baccha nubilipennis, Aust. 



Bacclia nubilipeiinis^ Austeu, Proc. Zool. S(ic. Lond. p. 136, pi. iv,. 

 tigs. 7 (full ins. col., d ), 9 (full ins. col., 5 ) : ph v, fig. 14 (head, J ,. 

 profile) (J 893). 



6 2 • Head : " Face and clieeks yellow, with yellow pollen and 

 pale yellow pile. Cheeks in S sometimes narrowly blackish 

 immediately below the eyes. A prominent, rounded and sharply 

 defined facial tubercle, commencing halt-way down the face; some- 

 times an indistinct brown stripe between it and the antennae. 

 Antenupe orange, 3rd joint large, ovate, larger in 5 than in the S - 

 A very pronounced antenniferous process, shining black above, 

 and orange-yellow immediately above the base of the antenna ; 

 the orange-yellow area is larger in the $ ; the projection is trun- 

 cate and flattened in front and pilose on the sides only. Front 

 in S greenish-black with yellow pollen and vertical triangle black; 

 in 2 shining black with a narrow triangular area on each side, in 

 front yellow pollinose, Pile on front biackish in J , yellowish 

 in 5 , shorter in the latter than in the former. Occiput with a 

 fringe of pale yellow hairs. Tliorax shining black ; the collar of 

 hair in front pale yellow; elsewhere nearly bare. Humeri and 

 postalar callosities brownish; pleurae with a broad vertical stripe 

 of golden pollen in front of the suture ; the stripe has a reddish 

 ground; pleurae behind wings silvery - pollinose. Scutellum 

 polished dark brown on the disc, more or less yellowish, semi- 

 translucent behind. General colour of the abdomen metallic 

 black (browner in 5 ), sometimes with a distinct bluish sheen; 

 the abdomen is broadest in the 4th segment. The 1st segment 

 has outstanding pale yellovv hairs on each side ; elseM'here the 

 abdomen is clothed with very short appressed black pile. 1st 

 segment black, browner and with an edging of yellow in the $ ; 

 2nd segment with a basal j^ellow band, notched in the median line 

 behind, and with an interrupted brownish-yellow band near the 

 tip, the latter often scarcely visible in the J ; 3rd segment with a 

 conspicuous transverse yellow band, occupying about the middle 

 third of the segment but slightly nearer the base; the remaining 

 segments wholly metallic black ; male genitalia small and concealed. 

 Legs orange-yellow; posterior femora slightly darker, dark brown 



