204 INSECUTOR INSCITI^ MENSTRUUS 



Holotype, male, Mount Ruapehu, alpine zone, altitude 4,000- 

 5,000 feet, January, 1931 (M. N. Watt). 



Allotopotype, female. 



Paratopotype, male. 



The exact status of this fly is in doubt. The difference in 

 development of the wings of the females of the two races is 

 very conspicuous. If this difference is constant, the present 

 form will deserve full specific rank. Types of this fly were 

 submitted to Mr. Edwards for comparison with his types of 

 hudsoni. 



Dolichopeza howesi, new species. 



Male. — Length 11 mm.; wing 11.8 mm. 



Frontal prolongation of the head ochreous ; palpi dark brown, 

 the terminal segment reddish with the extreme tip dark. 

 Antennae of moderate length, if bent backward extending to 

 beyond the base of abdominal segment 2 ; basal segment of 

 scape obscure yellow, darker apically ; second segment brownish 

 yellow ; flagellum dark brownish black, the segments distinctly 

 enlarged basally. Head light gray, the anterior part of vertex 

 with an indistinct median brown line. 



Mesonotum brownish ochreous, the praescutum with three 

 broad, darker brown stripes, the median stripe interruptedly 

 darker medially ; scutal lobes dark brown ; scutellum obscure 

 yellow ; postnotum pale brown, sparsely pruinose. Pleura pale, 

 sparsely pruinose; sternites between the fore and middle coxae 

 darker gray. Halteres elongate, yellow, the knobs a little 

 darker. Legs with the coxae pale, sparsely pruinose ; troch- 

 anters obscure yellow, darkened apically ; femora yellowish 

 brown, this coloration less extensive on the fore femora, the 

 tips darkened ; tibiae pale brown, the tips darkened ; tarsi brov/n- 

 ish black. Wings uniformly tinged with pale brown ; stigma 

 and cell Sc a little darker brown ; veins dark brown ; oblitera- 

 tive areas liefore and beyond the stigma and at the fork of M. 

 Venation : Sc-^ entirely atrophied ; Rs oblique in position, in 

 alignment with Sc, ; r-m elongate, longer than either Rs or 

 the fused portion of Cu^+M. 



