Miller. — The Dipt era Fauna of New Zealand. 303 



median greenish -blue stripe restricted in the middle (fig. 25) ; front 

 clothed with brownish hairs ; ocellar triangle elongate and situated for- 

 ward from vertex. Antennae orange-yellow, with a broad dark-brown 

 upper edge ; 3rd joint oval ; arista blackish-brown. Face minutely hairy, 

 abruptly receding to oral margin below knob (fig 26) ; general colour pale 

 yellowish-green, with a darker, somewhat yellowish median stripe and a 

 blackish reflection along orbits to lower eye-angle ; cheeks yellow ; mouth- 

 parts brown ; occiput black, posterior orbits silvery. 



Dorsum of thorax shiny greenish-black, clothed with short pale hairs ; 

 a short yellow stripe on each side between humerus and wing ; pleurae 

 greenish-black, the metaplurae somewhat pale yellowish ; scutellum 

 ochreous but darker basally and clothed with tawny hairs. Wings clear 

 though faintly tinged distally ; stigma and veins brown ; vena spuria, 

 which arises at origin of R 2 + 3 , nas a stump from lower side of the nodule ; 

 just behind cell 1st M 2 , vein M is slightly sinuated, and arising from 

 proximal end of this sinuation is an indistinct vein-like structure which, 

 arising vertically, turns abruptly forward parallel to vein M and crosses 

 into cell 1st M 2 (fig. 27) ; halteres tawny. Anterior and middle legs 

 ochreous, the posterior pair brown except for the ochreous basal half of 

 the femora. 



Abdomen black, clothed with delicate brownish marginal hairs ; elon- 

 gate and narrow, slightly restricted along each side ; 2nd, 3rd, and 4th 

 segments each with a pair of oblique ochreous spots (figs. 28) ; genital 

 segments brownish. 



The female differs from the male in the elongate ovate abdomen, 

 which has a pair of more transverse and pointed spots on the 2nd, 3rd, 4th, 

 and 5th segments. 



c?. Length, 10 mm. $. Length, 10-5 mm. 



Holotype : No. 1234, D. M. 



Habitat. — Karori (G. V. Hudson). 



S. novae-zealandiae Macq. (Plate XLVII, fig. 7.) 



S. novae-zealandiae Macquart, Dipt. Exot., Suppl. 5, p. 115 (1885) ; 

 Hutton, Trans. N.Z. Inst., vol. 33, p. 40 (1901) ; Cat. Dipt. N.Z., 

 p. 44 (1881) ; Miller, Trans. N.Z. Inst., vol. 42, p. 230 (1910) ; 

 I.e., vol. 46, p. 126 (1914). S. ortas, Hudson, Man. N.Z. Ento., 

 p. 56 (1892). 



A medium-sized fly with bronzy-black thorax and black abdomen 

 spotted with orange-red, ochreous, cream, or white. 



<? Eyes holoptic and bare ; front bronzy-green, vertex black, both 

 clothed with erect black hairs, those on the front appearing as a tuft in 

 profile ; lunular area shiny black, the anterior margin brownish ; frontal 

 orbits narrowly silvery in some lights. Antennae with the first 2 joints 

 black, the 3rd brownish and oval ; arista black with a very minute and 

 scattered pubescence (fig. 29). Face shiny, rather bronzy, but covered 

 with a dense greyish-brown pubescence and scattered black hairs ; knob 

 shiny blue-black, below which the oral margin is shiny brownish-black, 

 this colour extending across the face to the orbits as an oblique band 

 (fig. 30) ; remainder of oral margin greyish-brown, except posteriorly, where 

 it is tawny or orange-red, which in some specimens may extend on to the 

 occiput as a broad area ; cheeks pale greyish-brown, silvery along the 

 orbits, and clothed with white hairs ; proboscis black with a brown labella ; 



