INSECUTOR INSCITLli MENSTRUUS 129 



Abdomen black, with a reddish tinge, especially on the 

 sternites. Ovipositor with the valves light horn-color, very 

 long and slender, the tips acute. 



Habitat. — New Zealand. 



Holotype, 9, Grey mouth (Helms) (from Osten Sacken's 

 collection). 



The reference of this interesting fiy to Gynoplistia is ren- 

 dered somewhat doubtful since the antennal flagellum of the 

 unique type is lacking. The other details of structure of the 

 fly seem to indicate that this reference is correct. If this insect 

 is not a Gynoplistia it will fall in the genus Limnophila, s. 1. 



Austrotipula, ne.yv genus. 



Frontal prolongation of the head relatively short ; nasus 

 stout. Terminal segment of palpi about as long as the basal 

 three segments taken together. Antennse short, of peculiar 

 structure, 14-segmented ; first scapal segment elongate ; basal 

 three flagellar segments elongate-oval, tumid, with the verticils 

 comparatively short, sparse and arranged unilaterally ; flagellar 

 segments 4 to 12 suddenly narrowed, long and slender, each 

 with about six very long verticils that are as long as four or 

 five of the flagellar segments taken together; these verticils 

 are distributed over the whole length of the segments ; terminal 

 segment with the tip suddenly narrowed, the verticils grouped 

 around the base of this tip. Vertex with a small, bifid, vertical 

 tubercle. Wings with Rs elongate, longer than R^^ alone ; vein 

 Ro comparatively short, oblique, with numerous macrotrichiae ; 

 Rr^ nearly straight, parallel to Ri-\-r, ; cell M-^ sessile ; m-cu 

 present. Male hypopgyium of simple .structure. Ovipositor 

 with the valves long and pointed, the tergal valves greatly 

 exceeding in length the small sternal valves. 



Genotype. — Pachyrhina hudsoni Hutton (New Zealand). 



This striking crane-fly, the largest as yet discovered in New 

 Zealand, was originally described as a Tipula but later referred 

 by Hutton to the genus Pachyrhina (Nephrotoma) to which it 

 is but distantly allied. From Tipula it is readily told by the 

 peculiar antennae and sessile cell M^. From Macromastix it 



