102 Di'- C. P. Alexander on 



Molopliilus quadrifidus ohakicnensis, subsp. ii. 



]\Jale. — Length about 4 mm. ; wing 4-6-4*8 mm. 



(Generally similar to M. quadrifidus, differing as follows : — 



Male hypopygium with the lateral and mesal arms much 

 more compact, the lateral arm very powerful, the outer 

 maro-in microscopically serrulate ; the lateral and mesal arms 

 are separated only by a small oval notch ; the median arm 

 terminates in two small laterally-directed points ; the basal 

 arm is shorter and more densely provided with setse. Distal 

 pleural appendage with the apex more abruptly truncate. 



Hab. New Zealand (North Island). 



Holotype, S -, Ohakune, altitude 2060 feet, February 9, 

 1922 (T. n. Harris). 



Paratopotijpe, 1 c^, March 10, 1922; paratype, 1 S, 

 Taihape, March 1, 1922 (T. R. Harris). 



Molophilus brevinerviSf sp. n. 



General coloration pale brown ; antennae of male elongate ; 



petiole of cell i^^ elongate ; vein 2nd A short ; mesal pleural 



appendage of hypopygium with a long, straight^ lateral 



spine. 



Male. — Length about 3 mm. ; wing 4*2 mm. 



Rostrum and palpi brown. Antennae of the male elongate, 



brown ; when entire at least as long as the body, the 



flagellar segments with conspicuous erect setae. Head pale 



brown. 



Mesonotum uniformly pale brownish testaceous. Pleura 



pale brownish yellow. Halteres dark brown, the base of the 

 stem paler. Legs with the coxae and trochanters concolorous 

 with the pleura ; remainder of the legs pale brown with the 

 terminal tarsal segments darker. Wings tinged with pale 

 brown, the veins darker with dark brown macrotrichise. 

 Venation : petiole of cell i?4 one-third longer than the 

 petiole of cell M^ ; basal deflection of Cui arcuated near 

 mid-length, situated on R^ a short distance beyond the fork 

 of M ; vein 2nd A short and straight, ending far before the 

 fork of Cu, the cell 2nd A being long and narrow. 



Abdomen brown, the hypopygium a trifle brighter. Male 

 hypopygium with two appendages, both basal in position; 

 lateral appendage a powerful black hook, strongly curved 

 at apex ; mesal appendage deeply bifid, the lateral arm 

 appearing as a very long straight spine, the mesal arm as a 



