142 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Diptera. 



Baeopterus robustus, sp. nov. 



Lengths. — Male : Body, 10 mm. ; wing, 5 mm. ; hind legs about 14 mm., others 

 about 10 mm. 



Colour. — Dull brown-piceous. The prothoracic calli, the front of the thorax, 

 and two patches on the outer sides of the dorsal suture dull orange. Pleurae yellow- 

 brown. 



Antennae of the same colour as the body, but with arista pale transparent brown, 

 except as to its basal joints. 



Wings orange-tinted, with brown veins. Halteres with a pale stalk and dark- 

 brown club. 



Legs orange, with darkened tibiae and tarsi. 



The whole insect is covered with uniformly but sparsely distributed short ad- 

 pressed hairs. 



The female is smaller than the male ; the wings are about half the size of the 

 male's wings ; the femora are not at all incrassated. 



Specimen preserved in spirit. 



Hab. — Campbell and Ewing Islands. 



Type. — Male, Cambridge Museum ; female, British Museum. 



Note. — One male was sent from Campbell Island, but there are several males 

 and a female in the British Museum from Ewing Island, and I have been able to com- 

 pare the same with the Campbell Island specimen. 



HELOMYZIDAE. 



Two specimens from the Snares belong to this family. From the absence of a 

 prothoracic bristle they belong to the Hdomyzinae, and the presence of a humeral 

 bristle would make them belong to the genus Allophyla. But the chaetotaxy and 

 other characters at once differentiate it from that genus, and the general form of 

 the insect recalls the Blepheropterinae section, which should, however, have a pro- 

 thoracic bristle. It would appear to be an aberrant form of this subfamily. I 

 propose to make the following genus for this species. 



Allophylopsis, gen. nov. 



The difference between the chaetotaxy of this genus and Allophyla is given 

 below : — 



Allophyla. 

 Post-verticals crossed. 

 Two pairs vertical, inner very long. 

 One pair orbital. 

 1-1-4 dorso-centrals. 



Others the same in both. 



One preapical bristle on the middle Two stout preapical bristles on the middle 

 tibiae just before the end. tibiae some distance before the end. 



AUophylopsis. 

 Post- verticals converging. 

 Two pairs vertical, inner moderately long. 

 Two pairs orbital. 

 0+3 dorso-centrals. 



