328 Transactions. 



produced forward as a point over the lower part ; frontal lunule orange- 

 brown and shiny ; antennae and arista black. Face pale tawny with a 

 golden tinge and clothed with tawny hairs ; a shiny naked median area 

 over prominence ; oral margin broadly banded with shiny blackish-brown 

 becoming lighter as it merges into the tawny of face above ; face, in profile, 

 gently concave beneath antennae ; cheeks and occiput greyish-yellow, 

 clothed with greyish hairs longer on the cheeks ; proboscis and palpi 

 blackish-brown. 



Dorsum of thorax clothed with a short brownish pile ; 3 blackish-brown 

 and 4 greyish-yellow stripes arranged as in antipodus ; pleurae greyish - 

 black with yellowish areas in some lights and clothed with tawny hairs ; 

 scutellum orange-brown and clothed with brownish hairs ; halteres tawny. 

 Wings clear, the stigma hardly coloured ; squamae yellowish and fringed 

 with long branched hairs ; anti-squamae fringed with shorter hairs. 

 Legs hairy ; tawny except for coxae, which are greyish, and for the 

 trochanters, base of femora, the 1st four tarsal joints (except the posterior), 

 and the posterior knees, which are blackish-brown ; the onychotarsi 

 inclined to tawny ; posterior femora rather swollen and with delicate spines 

 beneath on distal half ; posterior tibiae inclined to fuscous apically ; indis- 

 tinct inferior, apical spines on anterior and middle tibiae ; tarsi with minute 

 black bristles beneath and a golden reflection in some lights, particularly 

 on the posterior pair. 



Abdomen (fig. 82) clothed with a short golden pile, longer at the sides ; 

 1st segment orange-yellow laterally, otherwise greyish (except where covered 

 by scutellum), a black spot on each side of greyish area ; 2nd and 3rd 

 segments orange-yellow but with an H-shaped black area, the sides of the H 

 lying along the anterior and posterior margins and the cross forming a short 

 median stripe ; this black along the anterior margin does not reach to each 

 angle of the segment ; the anterior margin of the 3rd segment may be so 

 covered by the overlapping posterior margin of the 2nd that the marking 

 appears rather as an inverted T ; 4th segment brownish-black but with an 

 indistinct orange-yellow area on each side along anterior margin ; 5th 

 segment greyish-brown with a darker indistinct median stripe ; on the 

 2nd, 3rd, and 4th segments is a pair of greyish spots, one on each side of 

 median black stripe ; these spots sometimes indistinct on 2nd segment ; 

 posterior margin of each segment rather brownish. 



c?. Differs from $ only in the more pronounced character of the 

 colour-pattern and in the broader posterior femora, their tibiae being 

 blackish-brown distally. Genitalia shown in partial side view in fig. 75. 



$. Length, 12mm. $. Length, 13mm. 



Holotype : No. 377, D. M. 



Habitat. — Dunedin, Purakanui, and Wellington. 



H. ineptus Walker 



H. ineptus Walker, Cat. Dipt. Brit. Mus., p. 608 (1849) ; Hutton, 



Cat. Dipt. N.Z., p. 41 (1881) ; Trans. N.Z. Inst., vol. 33, p. 39 



(1901). H. purehuensis Miller, Trans. N.Z. Inst., vol. 43, p. 125 



(1911). 



A large sombre-coloured fly, the abdomen clothed with yellow hairs 



and spotted toward the base. 



c?. Eyes bare, dichoptic ; ocellar triangle blackish-brown ; upper part 

 of front black, the lower greyish-yellow, the whole clothed with dark-brown 



