Marshall. — On Neiu Zealand Diptera. 255 



dinal a fork with a long petiole. From the second longitu- 

 dinal vein, bent angularly in the vicinity of the root, issue the 

 anterior branch of the fourth longitudinal and the third longi- 

 tudinal vein. Fifth longitudinal vein perfect. Inner marginal 

 cell large, moderately dilated. Surface of wing microscopi- 

 cally pubescent. Antennae very long, setiform. 



This genus is represented by one species in New Zealand ; 

 none have been described from Australia. The New Zealand 

 species has no anterior branch of second longitudinal, and the 

 antennae are not long. 



Sub-section IV. MACROCBEiNiE. 

 Genus Macrocera, Meig. 



Anterior branch of second longitudinal vein small (occasion- 

 ally absent), lying in an oblique position, running into the 

 costa, and forming a fork with a long petiole with the strongly- 

 curved second longitudinal. Anterior branch of the fourth 

 longitudinal vein arising from the second longitudinal vein 

 near the base ; the third longitudinal vein arising from the 

 same vein a little anterior to the anterior branch of the fourth 

 longitudinal. Fifth longitudinal vein perfect. Inner marginal 

 cell small, moderately dilated. Surface of the wing micro- 

 scopically pubescent, rarely more hairy. Antennae very long, 

 filiform. ^' 



This genus is almost cosmopolitan. It is represented by 

 several species in New Zealand and Australia. 



Sub-section V. Ceroplatin^. 



Anterior branch of second longitudinal vein small, joining 

 the costa or first longitudinal, forming a fork with a lon^'^ 

 petiole. Anterior branch of the fourth longitudinal vein 

 arising nearer the base of the latter. Fifth longitudinal vein 

 complete or incomplete. Inner marginal cell short, moderatel>' 

 dilated. Surface of the wing microscopically pubescent. 

 Genus Ceroplatus. 



Antennae broadly flattened. Palpi not incurved. Le^s 

 long and slender. Auxiliary vein reaching the costa before 

 the origin of the third longitudinal vein. 



This genus is represented by several species in New Zea- 

 land. In the present paper I describe three. 



Genus Platyura. 



Antenna? not broadly flattened, somewhat compressed, 

 2 -f 14 jointed. Palpi incurved. Auxihary vein usually 

 united to the first longitudinal by the subcostal cross-vein 

 Anterior branch of the second longitudinal vein short, ending 

 either in the first longitudinal or in the .costal vein. Third 

 submarginal cell with a very short petiole. 



