
B. caliginosa n. sp.
♂. Eyes distinctly hairy, not broadly dichoptic; front shiny black and distinctly hairy; antennae blackish-brown, about the length of the width of one eye and situated on the middle line; 1st joint not much longer

than the 2nd, both bristly above and below (fig. 24); flagellum clavate, distinctly 8-segmented, minutely pubescent, and terminating in short hairs; face with a dense and brownish tomentum, covered with long black hairs except on the lower part, there being only a few very short ones at the epistome; proboscis and palpi tawny, the latter projecting beyond the former; 1st palpal joint longer than the 2nd (fig. 25), both bearing long and stiff bristle-like hairs; posterior orbits not broad, of about equal width throughout, and with long black hairs below; there are distinct postorbital bristle-like hairs; occiput black, depressed, and hairy.
Dorsum of thorax violet-black, slightly shiny with short and delicate greyish hairs; pleurae black, shiny, and hairy; scutellum bare, shiny violet, the 4 spines distinct and brown; halteres pale brown.
Legs stouter than usual, indistinctly banded with brown and dark, brown, the latter colour on the distal half of each joint; posterior femora club-shaped, their tibiae slightly thickened, and tarsi light brown except apex of the slightly thickened protarsi, epitarsi, and the whole of the remaining joints, which are dark brown; the tarsi of the other legs are also darker distally, but their protarsi are not so light in colour as the posterior; all the protarsi are barely half the length of the whole joint.
Wings faintly tinged with brown; veins brown, the auxiliary vein paler; the stigma brown but the pigment separated from the 1st longitudinal vein; 1st section of 2nd longitudinal vein—that is, the part between the origin and the orgin of the 3rd vein—sinuated and about twice the length of the anterior cross-vein; 1st section of 3rd vein shorter a little than the anterior cross-vein, which is more or less anteriorly oblique; 3rd vein distinctly sinuated, the anterior branch forming an acute angle and strongly sinuated; apex of discal cell behind the line of end of second vein; vein separating the two basal cells obsolete only along proximal half; 1st, 3rd (except anterior branch), 5th, and 6th longitudinal veins bristly, (fig. 26).
Abdomen brown (except the 1st segment, which is black) and darker at the sides, with 7 segments, about as wide as the thorax, not apically truncated but more or less pointed, and terminating in the tawny genital organs (fig. 27, a and b). The apical segment, slightly down-turned and projecting backward, is a pair of short hairy boat-shaped appendages separated by a cone-shaped structure (a), beneath which is a pair of strong inner claws (b), and outside these long claw-like bristles.
♂. Length, 6 mm.; wing, 5 mm.
Habitat.—Dunedin, November (Howes).
