194 Dr. C. P. Alexander on 



Halteres rather elongate, dark brown, the extreme base of 

 the stem yellow. Legs with the coxae yellowish, the lateral 

 faces slightly infuscated ; trochanters obscure yellow ; 

 remainder of the legs black. Wings relatively narrow, 

 brown, the stigma still darker brown, oval; conspicuous 

 pale areas before and beyond the stigma; veins dark brown. 

 Venation : Sc short, Sc^ ending just beyond the origin of 

 Rs, Sc^ a corresponding distance before this origin ; basal 

 deflection of Cui before the fork of M. 



Abdomen dark brown. Male hypopygium with the 

 pleurites grooved along the mesal face ; ventral pleural 

 appendage relatively small and slender, with a conspicuous 

 lobule on the mesal face before mid-length, the apcK and 

 this lobule terminating in powerful spinous setae ; dorsal 

 pleural appendage a powerful, almost straight, chitinized 

 rod, only the apex gently curved. Gonapophyses with the 

 mesal apical angles produced into a slender blackened lobe, 

 the lateral margin of which is microscopically denticulate or 

 crenulate. A close group of about ten powerful spines on 

 the mid-caudal line of the tergite. 



Hab, New Zealand (North Island). 



Holotupe, S -> Ohakune, altitude 2060 feet, February 8, 

 1922 {t R.Harris), 



Dicranomyia torrens, sp. n. 



Male. — Length 7*5-7-8 mm. ; wing lO'S-ll mm. 



Female. — Length 7 mm. ; wing 10 mm. 



Generally similar to D. fasciatay Hutton, differing as 

 follows : — 



Halteres unusually long and slender, the stem pale except 

 at the distal end. Legs with the apices of the femora dis- 

 tinctly pale. Wings with the stigma larger ; dark colour in 

 the anal cells occupying all of the cells ; spot at origin of 

 Rs not attaining vein M. Venation : a supernumerary 

 cross-vein in cell Sc^^ the tip of i?, being atrophied immedi- 

 ately beyond r. Male hypopygium with the mesal face of 

 each pleurite produced caudad and mesad into a long con- 

 spicuous lobe. Ventral pleural apjjendage broad at base, 

 narrowed apically; dorsal pleural appendage gently curved 

 to the acute apex, not strongly bent near mid-length as in 

 fasciata. Gonapophyses pale, the mesal apical angle pro- 

 duced caudad into a long slender lobe. Face of penis- 

 guard with two convergent rows of powerful bristles at 

 base. Ovipositor with the valves dark reddish horn-colour, 

 the acute tips of the tergal valves slightly curved. 



