294 SYEPIIID^E. 



brownish-yellow infuscation in middle, extending from the costa 

 and the brown stigma and reaching to the 4th longitudinal A^ein ; 

 squamae and halteres brownisb-yello\^■. 



Length, 13 mm. 



Described from a single $ taken by Mr. S. Kemp between 

 Eenging and Eotung, KAV. Frontier "of India, 2200 ft., 20. xi. 

 1911. A true Sericomijia with the general appearance of Eristalis. 



Type in the Indian Museum. 



Subfamily CHRYSOTOXIN^. 



Antennae porrect, elongate, arista normally dorsal, rarely with 

 an apical style ; anterior cross-vein normally before middle of 

 disc.ll cell ; marginal cell open. 



This subfamily, like the Milesiin^, is by no means a satisfactory 

 one nor is its position, as such, at all well established. Originally 

 Chri/sotoxnvi was included by Scbiner in the Chrysogastrin^, 

 and, though the latter group is inadmissible as a subfamily, 

 Verrall considered that Chrysotoxum would not be misplaced near 

 Syr2')?ms and Xanfhoc/ramma. The value of both the position of 

 the anterior cross-vein and the elongate or porrected nature of 

 the antennae may be over-estimated, especially the latter. 



Table of Genera. 



Antenna? with a dorsal arista Chrysotoxum, Meig., p. 294. 



Antenrras with an apical style Callicera, Panz., p. 303. 



Genus CHRYSOTOXUM, Meig. 



Chrysotoxuvt, Meigen, lUig". Mag. ii, p. 275 (1803). 



Mulio, Fabricius, nee liatreille, Syst. Anthat. p. 183 (1805). 



GrENOTYPE, Musca licincta, L. ; by Latreille's designation, 1810, 



Head semicircnlav, as broad as thorax ; eyes pubescent, but in 

 some cases indistinctl}' so, contiguous for a long space in J but 

 well separated in 5 ; frons prominent, generally black with lateral 

 yellow dust-spots ; face A'ery prominent, not at all cut away below 

 the antennal prominence, descending perpendicularly and only 

 gently curved outwards above upper mouth-border. Antennae 

 long, placed in profile at the limit of the produced frons and 

 upper limit of face, the three joints in many species roughly sub- 

 equal in length ; in other species, 2nd a little longer than 1st, 3rd 

 distinctly longur than 2nd ; 1st cylindrical, slightly wider at tip, 

 2nd rather similar but proportionately broader at tip, longer on 

 lower side, both with bristly hairs, 3rd bare, roughly cylindrical, 

 arista bare, sub-basal. Thorax roughly oblong, finely punctate, 

 black with yellow side lines and spots, and a pair of rather 

 indistinct greyish stripes on anterior part of dorsum. Pubescence 

 fairly dense ; scutellum similarly clothed, yellow, base more or 



