100 SYRPHTD.^. 



Table of Sjiecies. 



1. Hind femora more or less blackish on apical 



third ; hind tibioe black or blackish on 

 basal and apical thirds ; rest of legs yellow. 

 (Face with black median stripe in $, 



sometimes brown m <S) javana, Wied., p. ICO. 



Legs wholly yellow except for apical darken- 

 ing of tarsi in some forms 2. 



2. Face with distinct black median stripe ; 



thorax leneous or greenish, without sign 



of greyish median stripes viridcenea, Bnin., p. 101. 



Face unstriped, thorax nearly always with 

 two more or less distinct greyish median 

 stripes on at least anterior portion indiana, Big., ]i. 102. 



After i-econsidering the forms of this geiius of which Oriental 

 specimens are available, it has seemed advisable, in order to avoid 

 unduly multiplying such "forms," to unite all except javana and 

 viruhtnea under a single species. This latter may be a variety 

 (with wide variation wilhin its own limits) of the common scrijita, 

 L., of Europe ; and as it corresponds with Bigot's description of 

 his indiana, this name is adopted here. The only other species 

 described from the East is Macquart's henc/alensis, but as be 

 definitely allies his species with menthastri, L. (" tceniata, Meig."), 

 the preference is given to Bigot's name. 



78, Sphaerophoria javana, Wied. 



Si/rp/ais jdvaniis, Wiedemann, Anal. Ent. v. 34 (1824) ; id., Auss. 



■Zweifl'. ii, p. 137 (1830). 

 iS'phceropltoria /avaiia, de Meijere, Tijd. v. Ent. li, p. 290, notes 

 (1908) ; Brimetti, Bee. lud. Mus. xi, p. 217 (1915). 



(5 5 . Head : eyes in rj contiguous for fully half the distance 

 from vertex to frons ; front facets just perceptibly larger than the 

 others ; vertical triangle rather elongate, black, with black Imirs ; 

 frons and face shining yellowish, closely covered with bright yellow 

 dust and very tine yellow, almost imperceptible, pubescence ; 

 central bump rather large, shining yellowish to aeneous, a little 

 darker in centre. Upper side of small antennal prominence 

 shining black. Antennse orange, 3rd joint as broad as long, upper 

 side blackish ; arista orange. Eest as in Ischiodon scutellaris. 

 In 5, frons as in I. scutellaris; vertex with violet or somelimes 

 shining bronze reflections ; frontal stripe wider than in /. scutel- 

 laris, V ith dark brown pubescence ; broader on lower part ; face 

 with a broad median black stripe. Tliorax as in 1. scutellaris. 

 Scutelkun w ith W«c/i- pubescence. Ahdomen : 1st segment yellow ; 

 2nd segment much as in /. scutellaris, but spots sometimes oblong 

 with inner ends rounded, sometimes subtriangular, sometimes 

 narrow and elongate, their inner ends almost touching. The 

 yellow bands on 3rd and 4th segments are placed nearer the centre 

 than in/, scutellaris and are general! v rather narrower; 5th 



