CKRYSOTOXUM. 299 



black, slightly shining; posterior border of 2ud, 3rd and 4th seg- 

 ments brownish-orange, the colour extending forwards in the 

 centre of the 2nd and 3rd segments nearly to the middle ot the 

 disc; a pair of elongate triangular yellow spots on 2nd segment, 

 placed at tiie middle of the sides, their apices nearly reaching tluj 

 middle of the disc ; a pair of moderately wide, slightly curved sj)ots, 

 with the convex side placed anteriorly, each extending from the 

 hind corner of the 3rd segment to the anterior margin, where their 

 ends nearly meet. The 4th segment similar, 5th mainly yellowish- 

 orange, a narrow median line from anterior margin, forking early, 

 the ends not reaching the apex. Ease of under side of abchunen 

 yellowish-white ; a pair of oval yellowish s|)ots placed transversely 

 near anterior margin and near the sides of the 3rd and 4th seg- 

 ments ; those on the 4th segment shorter, the hinder part of that 

 segment more or less reddish-orange. Dorsal side of abdomen 

 with black hairs except on the yellow mai-kings, where the 

 pubescence is concolorous. On the venter the whole pubescence 

 is black. Legs : coxaj black with black hair ; fore femora yellow, 

 about the basal half black; other femora reddish-brown, middle 

 pair more broadly, hind pair very narrowly, black at base. Tibiae 

 and tarsi orange-yellow, base of tibiae more lemon-yellow. The 

 femora bear short black ])ubescence, a little longer on the base, the 

 hind pair have some very short yellow pubescence intermixed on 

 lower side ; tibiae and tarsi with yellow pubescence. Wings grey, 

 anterior margin narrowly brow nish-yellow ; halteres yellow ; 

 squamae yellowish-orange, with, deeper edges and yellow fringe. 



Leugih, 14 mm. 



Described from a single (S in the Indian Museum from Andar- 

 ban, Garhwal District, AV. Himalayas, 11,000 ft., vi. 1014 (6W. 

 Tgtler). The brownish-orange of this species presents a contrast 

 with the lemon-vellow colouring of C. festivvm. 



227. Chrysotoxum festivum, L. 



Mmcuf estiva, Liniitcus, Syst. Nat., Ed. x, p. 503 j 17")8). 

 Musca bipunctatn, Midler, Zool. Dan. Prodr. p. 174 (1770). 

 Musca imhelle, Harris, Expos. Engl. Ins., p. 60, pi. xv, tig. lli ( 1 78i'). 

 Syrphus arcuatus, Fabrieiiis, Syst. Ent, p. 707 (1775). 

 Chri/s'ituxnm scutelUire, Loew!| I'rogr. Toson, p. 26 (1840); Isis, 



vii, p. .558 (1840). 

 Chri/sotoxum injmcatuvi, id., ibid. 



cJ 2- Head in d bright lemon-yellow; vertex black, with a 

 little black pubescence ; frons shining black, with a little white 

 dust above and at sides and with short black pubescence. 

 Anteniuc black. Face with a median black stri])e ; cheeks with a 

 rather narrow black stripe, hinder part of cheeks varying Irom 

 orange to whitish. Occiput grey-dusted, hardly projecting behind 

 eye-margins, a short white fringe on upper part. In $ , tVons all 

 black, a jjair of large, very pale, yellowish-grey dust -spots just 



