142 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Diptcm. 



Baeopterus robustus, sjk miv. 



LengfJis. — Male : Body. 1(1 mm. ; win,!;-, 5 mm. ; liliid legs aljout 14 mm., others 

 about 10 mm. 



Colour. — Dull browu-piceous. The prothoracie calli. the front of tlie tliorax, 

 and two patches on tlie 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. 



Wmgs orange-tinted, with brown veins. Halteres with a jjale 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 

 prothoracie bristle they belong to the Helomyzinae, and the presence of a humeral 

 bristle would make them belong to the genus Allofhyla. 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 AUoplujhi is given 

 below : — 



Alio phyla. j AUnphi/lnpsis. 



Post- verticals crossed. Post-verticals converging. 



Two pairs vertical, inner very long. ' Two pairs vertical, inner moderately long. 



One pail' orbital. Two pairs orbital. 



1 -t- 4 dorso-centrals. | 4- 3 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. 



