150 Dr. C. P. Alexander on 



Gnophomyia jiavopygial'is, sp. ii. 



Size small (wing under 8 mm.) ; general coloration red- 

 dish brown, the pnescutum and scutum marked with darker 

 brown ; femora and tibico yellow, tipped with dark brown ; 

 wings faintly yellowish, stigma small, dark brown ; mostly 

 lying distad of r; hypopygium yellowish; pleural appen- 

 dages tapering to a single apical spine. 



}Jale. — Length 4-5-5-5 mm. ; wing G'3-7'8 mm. 



Female. — Length 5'5-5-8 mm. ; wing 5'9-7 mm. 



Kostrum reddish; palpi dark brown. Antenna? dark 

 brown, the basal segments a little more reddish ; flagellar 

 segments oval-cylindrical. Head grey. 



]Mes jnotuni light reddish brown. The prrescutum with 

 three darker brown stripes ; median stripe broad, becoming 

 obliterated before the suture, very indistinctly split by a 

 capillary darker line ; lateral stripes less distinct, better de- 

 limited internally ; seutal lobes dark brown; scutellum dark 

 brown ; postnotum reddish anteriorly, passing into brown 

 behind. Pleura reddish brown; an interrupted dorsal 

 brown longitudinal stripe extending to the halteres ; meso- 

 sternum dark medially and as a narrow line cephalad of the 

 mesocoxa. Halteres yellow. Legs with the coxte and tro- 

 chanters reddish brown; femora and tibiee obscure yellow, 

 the tips narrowly dark brown ; tarsi dark broAvn. Wings 

 with a faint yellow tinge, the costal cell faintly infuscated, 

 especially basally ; stigma small, dark brown, almost all 

 lying distad of r ; veins dark brown. Venation : Sc^ at the 

 extreme tip of 8c],so Sc-^ alone is about equal to r-m; r just 

 before the fork oi M. 



Abdomen dark brown; hypopygium reddish yellow, this 

 coloration including the pleurites and appendages. Male 

 hypopygium with the pleurites stout, tapering to the apex ; 

 the single pleural appendage is situated at the apex of the 

 pleurite, slender, tapering to the single acute apical spine; 

 before the tip on the cephalic face with a small weakly seti- 

 gerous lobule ; no brush of setse at base of caudal-lateral 

 angle of aj)pendage. 



The paratypes are smaller than the type with Sc^ a little 

 longer and the stigmal spot fainter, but the coloration and 

 structure of the male hypopygium is quite the same. 

 Ilah. New Zealand (South Island). 



Holotype, $ , Blackball, West Coast, March 1920 (J. W. 

 Campbell) . 



Allotype, ? , Nelson, January 1, 1920 (.4. Philpott). 



I 



