Page:Transactions NZ Institute Volume 33.djvu/33

intercalary vein from the discal cell very short. Length, 8-11 mm. ; wing, 7-8 mm.

Hab. Auckland (Captain Broun).

Thorax metallic bluish-green (oerugineous). Abdomen tawny, each segment margined behind with fuscous, the tip dark. Intercalary vein short, not reaching half-way to the margin ; branch of the third longitudinal slightly sinuated. Length, 7 mm.; wing, 7 mm.

Hab. Auckland (Colonel Bolton and Captain Broun); Otago (F. W. H.).

Vertex black, the front silvery; antennae piceous, the base of the flagellum pale; palpi and proboscis pale-yellow, except the last joint of the palpi, which is dark-brown. Thorax metallic greenish-blue, with a little golden down; base of the scutellum the same, its apex and spines brown. Abdomen tawny, the posterior margin of each segment with green metallic reflections. Sixth segment with a longitudinal dark band with green reflections ; seventh and eighth segments almost entirely dark. Legs tawny, the middle and hind tarsi paler, the fore tarsi fuscous. Wings pale-brownish, darker near the fore border; no dark band; costa brown, veins tawny; intercalary vein reaching the margin. Halteres pale- tawnv. Length, 10 mm.; wing, 9 mm.

Hab. Mount Arthur, 3,600 ft. (Hudson).

The flagellum apparently consists of eight distinct joints, but the last is longer than the others, and is probably formed by three closely united joints. The abdomen in the female is slightly oval and rather broader than the thorax. The male is unknown.

Third joint of the antennae long-fusiform, with eight rings; the palpi long. Eyes contiguous in the male. Scutellum with spines. Abdomen rather broad. Wing with four posterior cells, there being no intercalary vein from the discal cell.

In the New Zealand species the third joint of the antennae is linear, and the eyes are not always contiguous in the male.