58 SYRPiriDvE. 



Table of Species. 



1. Eyes bare (abdomen black, with 3 pairs of very [p. 58. 



large yellow spots) cnmcimlalei, Brim., 



Eyes densely pubescent 2. 



2. Abdomen wholly black, except two narrow 



transverse yellow spots on 2nd segment and a 



long narrow one on 3rd Icempi, sp. n., p. 59. 



Abdomen (nominally) black with tliree trans- 

 verse yellow bauds, ui which the 1st may be 



resolved (specitically or individually) into a 



pair of transverse elonjiate spots . 3, 



3 {a). Abdominal 2nd segment with a pair of trans- 

 verse, elongate orange spots, narrowed on inner 



sides and nearly touching one another. Hind 



margin of 3rd segment narrowly, of 4th broadly, 



pale, 5th segment all orange except narrowly 



black at base. Abdominal pubescence, when 



seen from the side or behind, verv dense and 



apparently all deep orange, the black pubes- 

 cence on the l)lack parts of the surface hardly 



noticeable ". ovntcu Brun., p. 60. 



3 (i). Abdominal 2nd segment with the spots as in 



ovata but narrower, and also again narrowed at 



each end of each spot. Hind marsins of 3rd 



and 4th segments not appreciably pale, 5th dull 



br(3wnish - orange. Abdominal pubescence 



(viewed as in ovata) less dense, paler yellow, 



and the black pubescence as conspicuous as the [p. 62. 



yellow trilineata, sp. n., 



3 (c). Abdominal 2nd segment with a broad yellow 



band which is (1) very narrowly interrupted 



in the middle, forming two spots with broad 



inner ends or, (2) entire, moderately broad but 



much wider at each end or, (3) tilling all the 



surface except the black hind margin. Hind 



margins of 3rd and 4th segments respectively 



narrowly or broadly yellow, 5th segment yellow, 



narrowly black at base with a transverse small 



triangular or curved black mark. Abdominal 



pubescence following ground-colour, but the [p. 62. 



black much less conspicuous fi(jerina, Big., 



46. Dideoides annandalei, Brun. 



IHdea annandalei, Brunetti, liec. Ind. Mus. xvi, p. 299, J (1919). 



cS . Head : frous and face bright clirome-yellow ; former with 

 short, stifl' black pubescence, latter with softer, pale yellow hairs ; 

 antenna^ orange, upper side brownish ; arista orange ; rnouth- 

 border brownish. Eyes quite bare ; occiput black, entire margin 

 with fringe of whitish hairs ; vertex with stiff black hairs ; ocelli 

 ruby-red. Thorax shining black ; dorsum without trace of 

 median grey stripes on anterior margin, w^holly with quite whitish 

 pubescence ; side margins distinctly yellowish ; pleuriB mainly 

 shining black, with whitish pubescence ; mesopleura aeneous, with 



