Hutton. — On the Diptera brachycera of New Zealand. 47 



Female. — Front dark-brown ; face grey, with a black oblique 

 band on each side from the eye to the base of the antennae. 

 Eyes nearly bare, widely separated. Length, 6 nam.; wing, 

 5 mm. 



Hob. Wellington (Hudson). 



The third joint of the antennas is hardly one and a half 

 times the length of the second. The arista is very minutely 

 pubescent. The lower halves of the cheeks are bare, the 

 upper half is hairy. The forehead projects moderately, and 

 the eyes are large. The vibrissa? are distinctly above the 

 front edge of the mouth. The abdomen has discal and 

 marginal setae. There is no costal bristle, but the male has a 

 few bristles at the junction of the third and second longi- 

 tudinal veins, and in the female there are a few weak bristles 

 at the base of the third longitudinal. The chief cross-vein 

 is opposite the end of the first longitudinal. The first pos- 

 terior cell ends near the tip of the wing. 



Genus Tkyphera, Meigen (1838). 



Face vertical ; eyes generally hairy ; antennae not reach- 

 ing the epistome ; the third joint twice the length of the 

 second ; arista bare. Abdomen oval. First posterior cell 

 closed, with a short petiole, reaching nearly the posterior 

 border ; a bristle on the costa. 



Tryphera sosilus. 



Tachina sosilns, Walker, Cat. Dipt, in Brit. Mus., p. 796 

 (1849). Melanophora (?) sosilus, Hutton, Cat. Dipt. N.Z., 

 p. 52. 



Body and legs black. Wings white, the veins yellowish. 

 First posterior cell closed, petiolate. Length, 3-4 mm. 



I have two specimens, collected many years ago in Otago, 

 which correspond very well to Walker's description, except 

 that the first posterior cell, although closed, is not petiolate. 

 It may be a different species, but it is, I think, sufficiently 

 close to show that T. sosilus belongs to this genus, although 

 it is an aberrant form. The costa has a well-marked bristle ; 

 the fourth longitudinal vein is bent in a curve, and there is 

 no appendix ; the third longitudinal is quite bare. The first 

 posterior cell ends close to the tip of the wing. The eyes 

 are naked. The second joint of the antennae is not much 

 elongated ; and the third joint is also short, reaching about 

 half-way to the epistome. The second joint of the arista 

 is short. The abdomen has macrochaetae, and the cheeks arc 

 bare. 



Length, 4 mm. ; wing, 3 mm. 



