106 Dr. C. p. Alexander 



on 



Abdominal tergites uniformly brown, the sternites paler; 

 genital segment and ovipositor paler. Abdomen of type 

 gravid with large egij,s. 



Hab. New Zealand (North Island). 



Holoiijpe, ? , Ohakune, altitude 2030 feet, January 28, 

 1922 (T. R. Harris). 



Rhabdomastix vittithoraoo is most closely related to R. 

 otagana^ Alex. 



Zelandomyia, gen. nov. 



Antennse with at least 15, probably with 16, segments, 

 the segments with conspicuous verticils that exceed the seg- 

 ment in length. Legs clothed with very long, coarse setse ; 

 tibial spurs elongate. Wings with Sc ending about opposite 

 two-thirds the length of the long Rs, Sc^ at the tip oi Sci ; 

 i^5 long, straight; r lacking; i?2+3 nearly as long as R^ alone; 

 i?2 somewhat oblique in position; cell i?2 wide at the wing- 

 margin; inner ends of cells i?3, i?^, and 1^^ M2 in oblique 

 alignment; cell 1^^ M^ open by the atrophy of m ; cell Mi 

 present, but small; basal deflection of Cui about its own 

 length beyond the fork of M\ vein 2nd A ending opposite 

 the origin of: Rs ; arculus complete. Ovipositor with 

 acicular valves. 



Genotype, Zelandomyia pygmcea, sp. n. (Maorian Sub- 

 region). 



The tiny fly that is made the tj^pe of this new generic 

 group is the smallest Hexatomine fly known, with the 

 exception of certain species of Polymera which are of about 

 the same size. Its general appearance is more like a species 

 of Gonomyia than a Lwinophila, to which genus it is most 

 closely allied. The medial field of the wing suggests certain 

 Pediciine Tipulidse^ such as Dicranota and Rhaphidolabis. 



Zelandomyia pygmcea, sp. n. 



General coloration pale brownish yellow ; size very small 

 (wing of ? 3'5 mm.) ; wings greyish yellow; cross-veins 

 r and m lacking; vein R2 oblique in position; cell Mi 

 present. 



Female, — Length 3" 5 mm. ; wing 3" 5 mm. 



Rostrum and palpi pale brown. Antennae short, testa- 

 ceous. Head pale brown. 



Mesonotum and pleura pale brownish yellow, unmarked. 

 Halteres pale, the knobs large. Legs with the coxae and 

 trochanters yellow ; remainder of the legs pale brown, 



