296 , SYKPHID^. 



2. Second abdominal segment mainly yellow 



(as is whole abdomen), with a median 

 transverse black line and a short vertical 

 stripe above it joined to a narrowly black 



anterior margin bap?ii/rus,W a.\k.,^. 296. 



Second abdominal segment mainlj^ black, 

 with two transvei'se, elongate, yellow, 

 median spots, pointed at their inner ends ; . 

 hind margin of segment yellowish or 

 brownish-orange conve.vum,Bvun., p. 298. n^ 



3. Pairs of yellow spots on 2nd to 5th seg- 



ments 4. 



Pairs of spots on at most 2nd and 3rd seg- 

 ments 5. 



Thoracic grey stripes carried beyond sutnre ; 

 scutellar spot well defined ; abdominal 

 spots lemon -yellow ; femora wholly 



yellow ; wings with an obvious but ill- ^ 



defined blackish spot towards tip festivum, L., p. 299. 



Thoracic grey stripes ending at suture ; 

 scutellar spot ill defined ; abdominal spots 



ochraceous ; femora narrowly black at base ; [p. 300. y 



Avings without trace of subapical spot. . . . fuscomarginatuvi, sp. n., 



5. Fourth and 5th abdominal segments entirely 



black 6. 



Fourth abdominal segment with hind margin 

 orange-brown ; 5th with a large orange [p. 300. 



spot qiiadrifasciatmn, sp. n., '' 



6. Abdomen black ; 2nd and 3rd segments 



with a pair of nearly linear orange-yellow 

 spots placed distinctly behind anterior 

 margin ; scutellum dull yellowish with a 



blackish spot antiquii7n,W alk., p. 301. ^ 



Abdomen deep violet-blue ; 3rd segment 

 sometimes with a pair of linear whitish 

 spots on anterior margin, but these are 

 generally absent ; scutellum brignt lemon- 

 yellow without sign of a black spot .... violaceum, sp. n., p. 302. 



225. Chrysotoxiim baphyrus, WaU-. 



Chrysotoxtim haphynis, Walker, List Dipt. Brit. Mus. iii. p. 542 



(1849). 

 Chrysotoaum indicum, id., Ins. Saund., Dipt, i, p. 218 (1852). 

 Chri/sotoxiwi sexfasciatu7n, Brunetti, Pec. Ind. Mus. ii, p. 89 



(1908) ; i, pi. xiii, fig. 9, full ins. (1907). 

 Chrysotoxum citroneUum, Brunetti, Pec. Ind. Mus. ii, p. 90 (1908). 



<S $ , Head: vertex small, blackish, or with a bronze tint, with 

 a little black pubescence ; ocelli red, well separated. Eyes 

 contiguous for half the distance frou) vertex to frontal triangle ; 

 latter small, black, Avitli blackish-brown pubescence. Antenna! 

 prominence brown, blackish at base above; 1st and 2nd antennal 

 joints orange-brown, 3rd joint black, base paler, arista orange- 

 brown. Face lemon-yellow, sometimes tinged with greenisli, with a 



