166 SYRPiiiuTt:. 



red with small darker spots and markings, giving a somewhat 

 hrain-like appearance; shortly and hnely pnbescent on upper 

 and front part only. Vertical triangle black with some black 

 hairs ; frontal triangle shining black, wholly covered with black 

 pubescence, Avith a small prominence in centre ; anterior edge 

 brownish-orange. Face oeneous-black with whitish-grey pubes- 

 cence; central bump small but rather conspicuous, shining black, 

 bare, as is the lowest part of the head for a moderately broad 

 space. Epistome not appreciably produced below eyes themselves 

 in profile, but directed diagonally forwards and downwards. 

 Antennae blackish, sometimes brownish-orange on under side of 

 3rd joint ; arista brown, microscopically pubescent at base. In $ , 

 frons varying from slightly narrower to sliglitly broader than 

 one-third of head at base of antenna3 ; moderately shining black 

 with grey or yellowish-grey tomentum, wholly with black pubes- 

 cence ; a dull black, rather broad, transverse band from eye to 

 eye just above middle of frons, generall}' slightly extended down- 

 wards in middle ; vertex and a space above antennae sliining 

 black, with tlie small but obvious, bluntly conical, bump towards 

 anterior margin as in J • Thorax in (5 aeneous-black, shining, 

 with brownish-grey pubescence ; sides aeneous, sternopleura 

 aeneous-grey, all with yellowish-grey pubescence ; scutellum 

 shining black, with a slight bluish tinge and brownish-grey pubes- 

 cence. In 5 5 dorsum shining black ; on humeri and thence along 

 side margins to suture yellowish-grej^ or ash-grey, which is con- 

 tinued thence as a fine stripe on each side nearly to posterior calli ; 

 two median, well sepai'ated, very narrow, similarly coloured stripes 

 from anterior to posterior margin, where they merge into a more 

 or less grey space in front of scutellum. Pleurae yellowish-grey 

 or nearly nsh-grey, sometimes slightly shining. Abdomen in J '• 

 1st segment dull blackish-grey, black at base in middle; 2nd dull 

 bhick, hind margin rather narrowly shining in centre; a broad 

 triangular aeneous spot on eacli side margin, extended narrowly on 

 inner side as a fine line, disappearing before middle of segment; 

 3rd segment shining black, with a transverse aeneous spot on each 

 side margin as in 2nd segment ; having also a pair of transverse 

 greyish narrow spots overlying the aeneous spots, but well clear of 

 side margins of segment, their inner ends almost contiguous ; also 

 a moderately wide, nearly straight, dull black baud with parallel 

 edges across middle of segment, prolonged in centre to anterior 

 margin ; 4th segment dull black with two greyish transverse spots 

 as on 3rd l)ut united, forming a curved band with the middle i)art 

 touching anterior margin ; hinder third of segment, except at 

 sides, shining black. Pubescence of abdomen brov>'nish-grey but 

 more whitish towards side margins ; venter mainly shining black 

 with a little whitish pubescence ; hind margins of segments grey. 

 In 2 , the elongate transverse spots on side margins of 2nd seg- 

 ment yellowish and translucent, with an overlying narrow grey 

 spot on each, much as in 3rd segment in (^ ; these grey spots on 

 3rd and 4th segments broader and united, forming a very broadly 



