♂. Eyes bare, holoptic for a short distance in front of ocellar triangle, which is black with black hairs; ocelli brick-red. Front ochreous with scattered black hairs which extend on to face on each side; lunular area brownish; orbital margins narrowly blackish-brown. In profile the head is rather flat above to where the front descends to the antennae, which are somewhat elongated and sometimes surrounded with orange-yellow at the base; 1st and 2nd joints brownish and short; 3rd joint reddish-brown or yellow and elongate oval; arista brown and pubescent. Face thinly clothed with erect short black hairs; face pale yellow with a greenish tinge and a median blackish-brown stripe on lower half to oral margin, which is margined with blackish-brown; in profile the face is arched and produced at the knob (fig. 5); occiput black; proboscis and palpi brownish-black.

Thorax shiny black, clothed with short pale hairs; a tawny spot clothed with tawny hairs on each side of dorsum anterior to wing-articulation; scutellum testaceous and clothed with testaceous hairs; halteres testaceous. Wings faintly tinged; the veins and stigma blackish - brown. Legs testaceous but paler at the knees and basal half of tibiae; tarsi, particularly the posterior, fuscous.

Abdomen elongate, comparatively broad at the base, and somewhat narrowing between the 3rd and 4th segments; black, but to a great extent occupied by a pair of testaceous spots on the 2nd segment, a smaller pair on the 5th, and by two broad testaceous bands, one across the 3rd segment and the other across the 4th (fig. 12); genital segments blackish-brown except the 9th, which is tawny; 6th, 7th, and 8th clothed with scattered delicate hairs.

♂. Length, 8 mm.

Holotype: ♂, No. 1231, D. M

Habitat.—Dunedin.