92 Transactions. — Zoology. 



wing is about equal to three-fourths of its length. Length, 

 2^ mm. ; wing, 2fmm. 



Bab. Christchurch (H. Clark). 



The mouth has a row of short bristles on each side. The 

 arista has twelve or fourteen long hairs. 



Family OSCINIDiE. 



" Front without bristles, the crown having only a few 

 short ones ; border of the mouth without vibrissas, but some- 

 times a small hair on each side. Middle tibiae with small 

 spurs ; none of the tibiae with erect bristle on the outside 

 before the tip. Costa of the wing without bristles. Auxiliary 

 vein completely wanting ; the anterior of the two small basal 

 cells united with the discal cell, the posterior one totally 

 wanting" (Loew). 



Genus Oscinis, Latreille (1804). 



Head transverse ; front prominent, face oblique. An- 

 tennae short, not reaching the epistome ; third joint nearly 

 round, twice the length of the second ; arista bare. Costa 

 extending to the tip of the fourth longitudinal vein. Legs 

 moderate, the hind femora slender ; the tibiae straight. 



Oscinis badia, sp. nov. 



Uniform blackish-brown ; the third joint of the antennae 

 and the tarsi dark-tawny. Wings clear, veins piceous. _ The 

 chief cross-vein lies opposite the end of the first longitudinal ; 

 the distance between the two cross-veins is about twice the 

 length of the posterior cross-vein ; and the posterior cross-vein 

 is distant from the margin of the wing about two and a half 

 times its own length. Length, 3 mm. ; wing, 2| mm. 



Bab. Queenstown (F. W. H.). 



The mouth has a pair of small vibrissas, and the vertex 

 has a row of short bristles. Eyes with very short hairs. 

 Third joint of the antennae nearly round ; the arista bare and 

 bent down. The fore femora are rather thickened. 



Family AGBOMYZID2E. 



*' Front with strong bristles ; border of the mouth with a 

 vibrissa on each side. Middle tibiae with a terminal spur ; 

 none of the tibiae have an erect bristle on the outside before 

 the tip. Wings without bristles on the costa ; first longi- 

 tudinal vein very short, and the auxiliary vein connected with 

 it at the tip ; basal cells present, but small ; posterior cross- 

 vein generally far distant from the border of the wing" 

 (Loew). 



