456 Transactions. 
tomentum, bristles and hairs grey. Cheeks cinereous with greyish hairs; 
occiput cinereous, hairy below, bristly above, among which only three 
pairs of bristles are distinct (fig. 48). 
except on a 
dorsum with four longitudinal blackish stripes. Chaetotaxy weak except. 
for alar, notopleural, humeral, and post-humeral bristles, which are 
outstanding ; acrostichals and dorsocentrals represented by rows of 
numerous weak bristles (fig. 49). On scutellum is marginal row of ten 
erect bristles. 
Wings slightly greyish, veins testaceous but paler basally, stigma slightly 
tawny ; Sc ending in costa. Halteres tawny. 
testaceous; apex of tibiae and tarsi darker; anterior protars _ 
blackish and distinctly thickened. 
Abdomen with spot-like pits on each segment; black, with cinereous 
tomentum; posterior margin of each segment except the first pale 
greyish-tawny. Genital appendage elongate, blackish-brown, but tawny 
along middle on each side, this colour extending over upper edge basally. 
d. Length, 6 mm. ; + gential appendage, 10 mm. 
Holotype: No. 954, D. M. 
Habitat.-—Lake Wakatipu (W. G. Howes). 
Н. dracophylli n. sp. 
5. Head black, but greyish-pruinose ; eyes and front as in Н. flavin 
ceris, the latter with a row of delicate black orbital bristles ; front black, 
with indistinct brownish area just above antennae, which are inserted 12 
middle height of head and prominent; first and second joints shaped 
as in H. flavinceris, tawny, delicately bristled ; third joint black, greyish- 
pruinose, elongate, clavate, terminated by a style about two-thirds 15 
length, from the end of which projects a short, brownish chitinous 
spine. Face shaped as in H. flavinceris, black, with greyish pubescence. 
Proboscis about as long as head-height or a little longer, dark testaceous 
to dark brown, blackish at apex; palpi black with black bristles. Cheeks 
inconspicuous, black, with a greyish pubescence and clothed with a few 
delicate dark-brown hairs. Occiput convex, black but greyish-pruinose. 
hairy below, bristly above the system as in H. flavinceris. 
of strong marginal bristles, a pair of less prominent discal ones, HE 
discal and 
pair of apical, convergent delicate bristles; in some specimens € EUN 
apical bristles are absent. Dorsum greyish-pruinose with three indist 
longitudinal black stripes seen in some ligh 
