Makshall. — On New Zealand Dlptera. 277 



Joints of scapus dark-brown, short and robust, upper 

 edge of each joint fringed with brown hairs ; flagellum 

 greatly flattened, first six joints Hght-yellow, bordered at 

 the edge with short black hairs ; next six joints black, fringed 

 with black hairs ; last two joints light-yellow, the terminal 

 one bearing a nipple-like projection ; first and thirteenth 

 joints considerably darker than any of the others ; broadest 

 part of antenn£e about the fourth and fifth joints of flagellum. 

 Head black, covered with black pubescence. Thorax black, 

 lighter in front, with very indistinct dark-brown markings 

 covered with moderate black hairs. Scutellum black, bor- 

 dered with black hairs. Metathorax dark-brown. Pleurte 

 <;inereous. Halteres with stout pedicels ; knob oval, cinereous 

 at the base but white at the tip. Abdomen rather elongated, 

 black, third fourth and fifth segments with the anterior 

 portion dusky-white ; everywhere covered with black hairs. 

 Forceps of male dark, cinereous, densely pubescent. Legs 

 rather short ; coxae cinereous at the base, almost black at the 

 tip ; femora black above, but dusky below ; tibiae and tarsi 

 •dusky ; all joints of the leg covered with black hairs ; all spurs 

 black, moderately long. Wings slightly smoky ; large patch of 

 dark shading at the apex, extending as far as the fork of the 

 second longitudinal vein, becoming lighter towards the inner 

 margin ; another patch extending from the junction between 

 the second and third longitudinal to a little beyond the fork 

 of the third lonjjitudinal, reaching very little below the third 

 longitudinal but extending to the margin ; a small patch, 

 comparatively light, near the end of the posterior branch of 

 the fourth longitudinal. Auxiliary, first, second, and posterior 

 branch of fourth longitudinal vein very distinct and prominent; 

 anterior branch of second longitudinal reaching the margin 

 about one and a half times its own length from the apex of 

 the first longitudinal ; costa extending a little beyond apex 

 of second longitudinal, not reaching apex of the wing. Sur- 

 face of the wing microscopically haired. 



I have only one specimen of this very distinct and beauti- 

 ful little species. It was obtained in native scrub close to 

 Wanganui in January. 



Genus Platyuka, Meig. 

 Head small, broadly oval, tlie fore part flattened. Eyes 

 oval, a little emarginate on the inner side above. Ocelli three, 

 of unequal size, near together in a triangle on the broad front, 

 the middle one smaller. Palpi prominent, incurved, four- 

 jointed ; the first joint small, the second shortened-oval, as 

 long as or somewhat shorter than the third, the third and 

 fourth joints cylindrical, the fourth longest. Antennae as long 

 as the head and thorax taken together or even longer, rarely 



