Marshall. — On Neiv Zealand Diptcra. 231 



Sub-genus 8. Golpodia (Winn). 



Second longitudinal vein forms a curve 

 before the cross-vein, and joins the margin a 

 little beyond the tip of the wing ; cross-vein 

 rather long, oblique. 



Sub-section B. Cross-vein very oblique, originating 

 at the root of the first longitudinal vein. 

 Sub-genus 9. Dirhiza (Loew). 



Second longitudinal vein hardly undulating 

 before the cross-vein. Joints of antennae 

 sessile, or almost sessile, in botli sexes. 



Sub-genus 10. Epidosis (Loew). 



Second longitudinal vein sinuous before the 

 cross-vein. Joints of antennae pedicelled in 

 both sexes ; number variable. 



Section II. Wings with four longitudinal veins. 

 Sub-genus 11. Asynapta (Loew). 



Cross-vein sometimes like that in Section A, 

 then the second longitudinal is not sinuated ; 

 sometimes as in Section B, second longitudinal 

 is then sinuated. 



Genus 4. Spanioccra (Winn). 



Antennae filiform, 2+11 jointed ; joints cylindrical, with- 

 out verticils. Second longitudinal vein reaching the margin 

 considerably before the apex. 



Genus 5. Lasioptera (Meig). 



Antennae 2 + 14 to 2 + 32 jointed ; joints sessile, with 

 short verticils. Three longitudinal veins, the first and second 

 so near the costa as to be hardly discernible. 



Sub-genus Clinorhyncha (Loew). Mouth prolonged into 

 rostrum. 



Sub-family II. Lestreviina. 



Wings with at least four longitudinal veins and at most five, 

 sometimes with a rudimentary vein behind the fifth ; the 

 additional vein is situated between the second and third of 

 the last sub-family. Ocelli nearly always present. First 

 tarsal joint not shortened. 



Genus 1. Cavipylomyza (Meig). 



Fourth longitudinal vein forked. AntennaB 11 — 20 jointed ; 

 joints pedicelled in both sexes in some species — in some 

 male pedicelled, female sessile, in others both sessile. 



Genus 2. Tritozyga (Loew). 



The upper branch of the fork forms a curve almost in the 

 shape of an S. 



