Miller. — The Diptera Fauna of New Zealand. 329 



hairs separated into two areas by a bare transverse area across middle of 

 front ; lnnular area dark brown and shiny. Antennae black, 3rd joint 

 with a silvery reflection at base ; arista bare and with a silvery reflection. 

 Face tawny with greyish reflections and tawny hairs ; a bare median tawny 

 area ; moderately concave beneath antennae ; oral margin broadly margined 

 with blackish-brown ; cheeks and occiput greyish-black and clothed with 

 greyish hairs longer on the cheeks ; an indistinct tawny spot at lower eye- 

 margin. 



Dorsum of thorax inclined to bronzy posteriorly with 3 broad black 

 stripes, otherwise greyish-brown though rather silvery along anterior margin 

 behind the head ; clothed with a short golden to greyish-golden pile ; 

 scutellum bronzy to brownish, lighter in colour apically, and clothed with 

 long brown hairs ; pleurae blackish-grey in ground-colour but with a 

 greyish-yellow reflection and rather golden hairs ; halteres yellowish-brown. 

 Wings clear, the stigma barely coloured ; squamae yellowish-grey and 

 fringed as in preceding species. Legs thinly clothed with yellow hairs, 

 the tarsi with closely-set short golden ones beneath ; general colour 

 bronzy-black, the anterior and middle knees and basal half of the tibiae 

 brownish-yellow. 



Abdomen (fig. 78) shiny, clothed dorsally with an orange-yellow pile ; 

 1st segment bronzy ; 2nd bronzy-black except for two triangular orange 

 spots, one on each side, their bases being along the sides of the segment 

 and extending over the posterior angles of 1st segment ; 3rd and 4th 

 segments bronzy with a dome-shaped black spot from the centre of the 

 anterior margin ; posterior margin of each segment with a narrow trans- 

 verse black band broader at the sides and in the middle ; genital segments 

 greyish-pruinose in some lights. 



$. Vestiture of front not divided by a bare area ; lower part of front 

 with darker reflections ; abdomen more conspicuously haired, the hairs 

 inclined to form golden areas at the anterior angles of the segments. 



c? and $. Length, 11 mm. 



Plesiotype : <J, No. 322, D. M. ; $, No. 317, D. M. 



Habitat. — Dunedin, Wellington, and Auckland. 



H. hochstetteri Nowicki. (Plate L, fig. 3.) 



H. hochstetteri Nowicki, Mem. Krakauer Akad. Wissen., ii, p. 23 

 (1875) ; Hutton, Cat. Dipt. N.Z., p. 42 (1881). H. latifrons 

 Schiner, Reise der Freg. " Novara," Dipt., p. 359 (1868) ; Hutton, 

 Trans. N.Z. Inst., vol. 33, p. 39 (1901). Mallola latifrons Hutton, 

 Cat. Dipt. N.Z., p. 40 (1881). Latifrons preoccupied Loew, Ber. 

 Ento. Zeit., vii (1863). 



A moderately large robust fly, recognized by the brilliant violet-blue 

 to greenish abdomen and yellow-tipped scutellum. 



$. Eyes bare ; front black with greyish reflections and clothed with 

 dense black hairs ; frontal orbits silvery in some lights ; lunular area 

 brilliant orange-yellow but margined with black posteriorly ; 1st and 2nd 

 antennal joints black ; 3rd joint orange-yellow but margined with brownish- 

 black along the upper and front edges ; arista black. Face distinctly 

 concave below antennae, the protuberance shiny brown, this colour descend- 

 ing as a broad bare area to anterior oral margin ; oral margin bordered by 

 shiny black ; remainder of face dullish black and clothed with blackish 

 hairs, silvery in some lights ; facial orbits silvery ; cheeks and occiput 



