MiLLeR.—Diptera Fauna of New Zealand. 443 
К, are fused throughout their length, and Sc is evanescent apically. Оог- 
related with the absence of Ist A, the anterior coxae are longer than their 
femora, which are broadened and spinose beneath. The eyes are situated 
well forward on the head, and the occiput is well developed. In characteriz- 
ing the genus, Melander states that the head is flattened and the eyes 
dichoptic in both sexes; acrostichal bristles absent and two scutellar 
antennae ; a pair of acrostichal bristles is present on the anterior part of 
the dorsum, and in the female, besides the two apical scutellar bristles, 
there are four on each angle of the scutellum. The occipital chaetotaxy 
varies in the male and female. 
L. otiraensis n. sp. 
d. Head (fig. 11) dorso-ventrally flattened; eyes angulated at ocellar 
triangle and emarginate at antennae, dichoptic above antennae but closely 
approximated below, restricting the face and reaching to oral puoi 
: s ad: 
a pair of stout and conspicuous ocellar bristles. Front cinereous, com- 
paratively broad, with a distinct orbital bristle on each side toward antennae ; 
otherwise bare. Antennae situated in depression a little above middle 
height of head ; black in ground-colour, but with greyish reflection ; first 
joint short and inconspicuous but strongly bristled ; second joint more or 
less globular and bristly; third joint rather clavate, flat, clothed with 
short delicate hairs; style a little more than three times as long as third 
joint, yellowish-brown, thickened at base, and clothed with delicate bristle- 
like hairs, giving it a barbed appearance except at tip, which is bare and 
hair-like. 
Face narrow, convex, projecting in profile (fig. 11), clothed with dense 
silvery pubescence. Proboscis tawny, awl-like, slightly curved, not as long 
as height of head; palpi large, tawny, ultimate joint ovate, penultimate 
clavate. Occiput cinereous, flat and bristly above and clothed below with 
silvery bristle-like hairs along orbits ; lower angle bristly ; posterior orbits 
convex above but angulate about middle and thence concave to oral margin. 
Occipital chaetotaxy shown in fig. 13. eee 
_ Thorax very elongate, dorsum narrow, chaetotaxy prominent and shown 
in fig. 15, except posterior to suture and in front of scutellum, where the 
specimen is pinned. Dorsum cinereous grey, owing to pubescence, with 
black stripe on each side and an indistinct brownish medium one ; scutellum 
Cinereous, bristles erect and convergent. Pleurae blackish-brown but 
clothed with cinereous pubescence; middle and posterior coxae approxi- 
mated and set well back under base of abdomen, anterior legs attached 
anteriorly ; metapleurae with pair of distinct bristles. iba ; 
Wings (fig. 18) clear, anal angle weak, Ist A absent, Cu, distinct, forming 
Inner side of anterior tibiae; anterior tarsal joints, except the protarsi, 
slightly broadened. 
Abd 
