524 On tieic or little-known Tipulidfc. 



Abdoiv.en uniformly light brown, including the hypo- 

 pygiuni. Male hypopygiuui very ditlcront in the details of 

 structure from other kiiowu species of the subgenus. Ninth 

 tergite with a profound median incision, the niesal face of 

 the lobes formed obliquely truncated and densely set with 

 abundant black spicules. Outer or dorsal pleural appendage 

 flattened as in the genus, but the apex scarcely more than 

 one-half as long as the dilated base, not at all prolonged 

 into an attenuate lobe as in the genotype. 



The female is smaller. Tlie unique specimeu of this sex 

 at hand lacks the spur on vein M. 



Ilab. New Zealand (South Island). 



Holoti/pe, S , Seaward Moss, near Invercargill, October 15, 

 1906 (i. Philpott). 



A/lofo" oiype, ? . 



Paratopotypes, 2 (? (? , October 15, 1905; Paral7/jje, S, 

 West Plains, November 30, 1902 (A. Philpott). 



Macromastix subtenera, sp. n. 



Male. — Length about 7-5 mm.; wing 10-5 mm. 



Related to M. tenera (Hutton), differing as follows: — 



Size smaller. Antennae more elongate, the flagellar 

 segments beyond the first elongate-cylindrical, those near 

 mid-length of the organ much longer than those at base. 

 Head obscure yellow ; a large brown area on either side of 

 the vertex behind the eyes, only narrowly separated on the 

 median line; no median dark line on the anterior part of 

 vertex, ^lesonotalpostuotum obscure yellow with the lateral 

 margins of the median sclerite conspicuously margined with 

 pale brown, the median pale area broad ; in tenera there are 

 two circular black spots on the posterior margin of the post- 

 iiotum. Pleura with a continuous, but rather indistinct, 

 transverse brown line on the anterior part of the mesepi- 

 steinum, continued veutrad on to the mesosternum. Mings 

 faintly tinged with brown. Ps a little shorter than in 

 itnera ; cell 2nd A a little narrower. Basal tergite dark ; 

 basal half of second tergite cons})icuously light brown ; 

 remaining tergites with the pale median stripe as in tenera, 

 but less distinct and conspicuously intcrru})t(d across the 

 caudal margin of each segment by a narrow brownish-black 

 margin to tlie sclerite, those cross-bars concolorous with the 

 lateral stripes. 



Hah. New Zealand (South Island). 



Holofype, S, The Hump, Otago, altitude 3000 feet, 

 Dcccn.ber 24, 1915 {A. Philpott). 



