Miller. — Neiv Species of ?,^ew Zeahuul lva!]H(lid; e. '203 



black, not so long as the height of the head, the palpi brown and hairy, as 

 long as and applied to the proboscis, ensheathing the tip. 



Thorax not prominently humped, with rows of minute black bristles, 

 among which are a few upright grey hairs which on the scutellum form 4 

 marginal convergent bristles. Wings greyish with a light-brown stigma, the 

 veins being very hght greyish-brown and weak towards the articulation. 

 Auxihary vein very weak, otherwise as that of H. benhami ; 1st vein com- 

 paratively thick and apparently bifid distally (fig. 10) ; 2nd vein almost 

 straight, but shghtly upturned at the costa ; 3rd vein forked and shghtly 

 angled at the bifurcation, the anterior branch leaving at an acute angle, 

 and shghtly sinuated ; anterior transverse vein at right angles, the pos- 

 terior but faintly sinuated and about twice its own length from the margin, 



Fig. 10.— Wing. 



the last section of the 5th vein reaching the margin ; anal cell shorter than 

 the 2nd basal, the anal cross-vein parallel to the posterior margin of the wing 

 and curved into the anal vein. Halteres hght greyish-brown. 



Legs grey, but darker brown in certain hghts, with a vestiture of greyish 

 short hairs, the anterior and posterior femora being laterally flattened and 

 angulated at the middle ; the anterior metatarsi are about twice as long as 

 the following joint, both of which are flattened and shghtly enlarged, the 

 middle metatarsi about one and a half times as long as the following joint, 

 and those of the posterior legs about one and three-quarters the length of 

 the following. 



Abdomen ending in a cone-shaped protuberance (in profile), grey with 

 spots, short deUcate bristles and lateral tufts of silvery hairs. 



$. Broader and darker than the cj. the vertex wider and the frons con- 

 siderably narrower at the antennae, the 2nd antennal joint greyish-yellow, 

 and the abdomen is apically pointed. 



$ and $. Length, 2-25 mm. ; wing, 3 mm. 



J9^a&.— Captured on marram-grass and sand, Purakanui, January, 1910. 

 Not abundant. 



Bio. — On account of the protective greyish colour of this species, it is 

 seen with great difficulty when at rest. 



Genus Brachystoma Meigen. 

 Melander, Trans. Araer. Ento. Soc, vol. 28, p. 259 (1902). 

 Brachystoma adelensis sp. nov. Plate 1, fig. 2. 



General colour dull-shiny brownish-black. 



cJ. Head about as wide as the thorax, the eyes bare, occupying the 

 whole of the side of the head, and emarginate below the antennae, where 

 they are dichoptic, but holoptic above ; ocellar triangle rounded, prominent 

 in profile, of a dull-black colour, with a thick tomentum ; ocelh prominent, 



