298 Dr. C. P. Aloxaiulcr on 



Male. — Lenjrtli 3"3-3*G mm.; wing 45-5 mm. 



Kostruin and palpi pale brown, Antemiie of the male 

 about oiK'-fourth longer than tiie body, pale brown ; flagellar 

 segments elongate-fusiform, witli abundant, delicate, erect 

 setre. Head dark. 



Pronotum pale testaceous, the scutellum obscure yellow. 

 !Mcsonotum uniformly brown, the surface shiuy with few 

 conspicuous setae. Pleura pale yellowish testaceous. 

 Halteres very long and slender, pale brown. Legs with 

 coxa; brownish testaceous ; remainder of the legs pale 

 browni'^h testaceous, tiie terminal tarsal segments a little 

 darker. Wings whitish subhyaline, tiie macrotriehiie long 

 but very delicate, pale brown; veins almost white; the 

 fringe of niacrotrichise along the posterior and anal margins 

 very elongate. Venation : Sc short, ending just before the 

 fork of Rs ; petiole of cell R^ very long, from one-third to 

 nearly one-lialf Rs ; ?• short, on /?2+3 ^ short distance beyond 

 the fork of Rs ; basal deflection of Cui on M^+t from one- 

 third to two-thirds its length beyond the fork. 



Abdomen brown. Male hypopygium with the basal 

 pleural appendage appearing as a slender chitinized arm, 

 deejily split near mid-length, the two arms but feebly diver- 

 gent, one arm, immediately before the tip, bearing a dense 

 brush of tawny hairs ; apical spine blackened ; apical ap- 

 pendage small, black, slightly curved, the ajicx feeljly 

 notched. Penis-guard very long and slender, straight. 



Hub. New Zealand (North Island). 



Ilolotype, Si Oliakune, altitude 2060 feet, September 14, 

 19:21 (7; R. Harris). 



Paraiopotype, 1 S -, ^i^li the type; 1 S, October 15, 

 1921. 



Molophilus tanypus, sp. n. 



General coloration pale brown ; antennae short ; legs very 

 long and slender; wings whitish su))hyaline, variegated with 

 patches of dark macrotrieliise ; basal deflection of Cui beyond 

 the fork of M ; abdomen pale brown, with dark brown 

 lateral spots ; male hypopygium with the mesal face of 

 plcuritc at apex bearing dense brushes of dark hairs. 



Male. — Length 3-3-3 mm. ; wing 5-5"5 mm. 



Rostrum and palpi pale brownish testaceous. Antennje 

 short, pale brown, the scapal segments a little paler; flagellar 

 segments cylindrical. Head dark, sparsely prninose. 



Mesonotal pi"escutum pale brownish testaceous, fading 

 into yellowish laterally ; posterior sclerites darker brown. 

 Pleura yellowish testaceous, the dorsal sclerites infuscated. 



