210 Mr. F. W. Edwards' revision of 



Legs rather thickly clothed with long hair and with scattered 

 stiff bristles; in the male the hairs are much longer than in the 

 female, and the middle tibiae usually have a small tuft of bristles 

 close to the tip ; femora slightly thickened apically ; tibiae without 

 spurs at the tip; claws simple; empodia distinct, pulvilliform, a 

 little more than half as long as the claws. Middle legs shorter than 

 either of the other pairs, the proportions of the joints being roughly 

 as follows : — 



Wings as long as the abdomen [i. e. in their total length ; they do 

 not reach to the tip of the abdomen) in the male; in the female 

 slightly longer than the abdomen ; costal fringe distinct ; subcostal 

 and radial veins with rows of small bristles ; wing-surface micro- 

 scopically pubescent. Sc just distinct from R, but lying extremely 

 close to it ; base of R dipped downwards ; Rj lying in contact with 

 the costa from the origin of Rg onwards; Sc terminates and R 

 originates at about one-third of the wing-length. R2 + 3 very 

 short, joining the costa at a high angle just beyond the middle of the 

 wing. R4 + 5 almost straight, running practically into the tip 

 of the wing. Mj and Mj not separated ; M3 closely ajDproximated 

 to Mj + 2 ^t ^1^® tip ^^ tl^^ discal cell, and occasionally fused with it 

 for a short distance. Ascending portion of Cuj meets M3 at about 

 one-third of the length of the discal cell, and fused with it for a long 

 space ; the terminal free portion of Cuj is somewhat indented down- 

 wards, so that the cell Cuj is slightly contracted beyond the middle, 

 and expands again a little at the apex ; An nearly straight ; Ax 

 curved or bent near its tip, and not reaching the middle of the 

 wing. 



Table of the known living species of Styringomyia. 



1. Wings quite unspotted ; tibiae unicolorous .... 2. 

 Wings with fairly distinct though small blackish spots (except 



in S. impunctata) ; tibiae at least with traces of dark rings 4. 



2. Yellow species, wings hyaline /Java, Brun. 



Blackish species, wings strongly infuscated . . . .3. 



3. Femora yellow with broad blackish rings . obscura, Brun. 

 Femora blackish except at the base . solocipennis, End. 



4. Darker species ; anterior half of mesonotum mainly black . 5. 

 Lighter species; anterior half of mesonotum not black (unless 



discoloured) 8. 



