BACCIIA. 119 



94. Baccha umbrosa, sp. nov. 



d . Very near uigricosta, Bruii., differing by the wings having 

 the ground-colour grey, but possessing a similar brownish cloud 

 over the middle of the costa, lilliiig the initldle third of the wing, 

 dispersing gradually hindwards. Apical spot as in nigricosta, but 

 quite detached from the large median cloud. Ahdomtn mainlv 

 blackish; 1st segment shining deep blue, 2nd aeneous, ^rd aiiieous 

 on basal half, 4th broadly blue-greyish at base and less distinctly 

 so at tip, 5th and 6th almost wholly similarly coloured : pubes- 

 cence of abdomen wholly whitish, short. Eest as in nigricosta, 

 shghtly smaller. 



One (S , Abu, Eajputana (Nurse). 



Type presented by Colonel JN^urse to the British Museum. A 6 

 in the British Museum from Trincomalee, Ceylon, 23.1.1891 

 {Yerhunj), may be this species ; it ditfers only in the 4th and 5th 

 segments being much brighter shining blue. Tt is very slightly 

 larger and in indifferent condition. 



95. Baccha maculata, Wallc. 



Baccha maculata. Walker, Ins. Saiind., Dipt, iii, p. 223 (1852). 

 Baccha tinctipeiDiis, Bruuetti, Kec. Iiid. Mus. ii, p. 51 (1908) ; i, pi. .\i,. 

 fig. 6, wing (1907). 



S 2- Head: frons in S shining black with a steely bluish or 

 aeneous tinge and grey dust towards sides ; face shining black with 

 distinct small central bump, grey or yellowish-grey dust towards 

 sides. Antennae orange ; antennal prominence shining black in c? , 

 blue-black in $ . In ? , frons shining blue-black with greyish 

 dust at sides, face blue-black. ^louth-border and proboscis 

 yellowish in J $ . Thorax shining black (more cupreous in S 

 and more bluish in $ ) with very short grey pubescence; humeri, 

 a short longitudinal stripe on niesopleura) in front of wing-base. 



Fig. 22. — Baccha maculata, Walk., wing. 



and the dorsal margin between them, cupreous in cJ , yt?llo^''*h 

 in $ . Scutellum shining black ( d") or blue-black ( $ ). Ali'huwn 

 shining brown; 1st segment normally all yellowish; tip of 2iid, 

 base of J3rd narrowly and of 4th more broadly, yellowish ; some- 

 times a pair of small pale spots at base of 5th segment, tiie pale 

 markings very inconstant. Jn $ , the pale colour more extensive, 

 even to the extent of the 4th and 5th setriiients being whollv 



