138 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Diptera. 



Trichopticus, Rondani. Dept. Ital. Prod., iv, 9 (1861). 



A specimen from Carnley Harbour is apparently best put under this j^ft^nus. 

 as it agrees quite well with the general character of Mutton's other species of the 

 genus which are in the Cambridge Museum. 



Trichopticus {'t) curvipes, n. sj). (Plate III, fig. 8.) 



Head. — Eyes faiiiy well separated in the male ; very hairy ; black-grey in 

 colour, wnth some yellow pollination on the face and jowls. 



Thorax. — Black-grey, with the humeri and front of thorax slightly lighter, and 

 an indistinct central black line. 



Abdomen. — Dark yellowish-grey, with very indistinct subtriangular spots (iiaving 

 rounded angles) on the 2nd, 3rd, and 4th segments. 



Legs. — Femora of all the legs black ; the knees and rest of legs light testaceous. 

 The hind tibiae are remarkably bowed. The end of the tibia appears as if it extended 

 slightly beyond the insertion of the metatarsus. 



The insect is of the size of T. melas. 



Hab. — Carnley Harbour. 



Type. — Cambridge Museum. 



CoENOSiA, Meigen. Syst. Beschr., v, '210 (1826). 



Two species were sent, the one with the wings reduced to strips, the (ither witJi 

 ample blackened wings. The former was assigned by Professor Stein to tliis genus. 

 The second species is more doubtful in its affinities, but it is thought best to, at any 

 rate provisionally, place it in the genus as interpreted by Hutton. 



Coenosia filipennis, sp. nov. 



The specimen was preserved in spirit ; it was collected in Campbell Island in 

 November, 1907. 



Size. — Body, 5i mm. ; wing, about 1^ mm. 



Head. — Vertex and frons brown, face more silvery. Antennae black, tlu^ arista 

 bare except under a magnification of about 50, when it is perceptibly pubescent. 



Thorax grey, with three indistinct longitudinal brown stripes. Scutellum brown, 

 with a grey central line. 



Abdomen cylindrical, grey, with a broad brown central line ; this varies in 

 breadth along each segment, being narrower on the top edge than on the bottom edge 

 of each segment. The stripe is faintly interrupted on the centre line by the ground- 

 colour showing through. AH the bristles stand on brown spots. The male genitalia 

 are well developed, standing out as a grey knob on the end of the abdomen. 



Legs black, with yellow knees and a slight grey pollination on the femora and 

 coxae. 



Wings reduced to rudimentary stri]3S, which are narrow and acuminate, and about 

 1| mm. long. The costa is evident, and is provided with minute black bristles ; 

 in addition, another long vein is present, and 2 minute cells at the base of the wing. 

 The squamae are present, but very small. Halteres normal, yellowish-white in colour. 



Hab. — Campbell Islands. 



Type. — Cambridge Museum. 



