Hutton. — On the Diptera brachycera of New Zealand. 21 



Saropogon extenuatus, sp. nov. 



Eeddish-brown, the face and a spot on the sides of the 

 thorax golden. Thorax and scutellum with scattered golden 

 hairs. Bristles of the epistome black. Antennae and pro- 

 boscis dark-brown. Wings strongly tinted with yellowish- 

 brown, the tips fuscous ; a dark spot on the costa, just inside 

 the tip of the auxiliary vein, and extending backwards to the 

 second, longitudinal. Coxae dark-brown, those of the fore and 

 middle legs with silvery hairs. The rest of the legs, except 

 the last joint of the tarsi, ferruginous. Length, 8^ mm. ; 

 wing, 8 mm. 



Hab. Wellington (Hudson). 



Sub-family Asilinae. 



Second longitudinal vein running into the first. Antennae 

 with a distinct termiual bristle.* 



Genus Asilus, Linnaeus. 



Two submarginal cells; the fourth posterior cell closed. 

 Third joint of the antennae long, compressed, with a rather 

 long style. Face protruding below. Genitalia of the male 

 slightly swollen. Tibiae without a red band. 



Asilus smithii, sp. nov. 



Dark-brown, the abdomen with grey tomentum. Bristles 

 of the epistome white, with a few black ones above. Face 

 yellowish-white. Antennae black, the second joint shorter 

 than the first. Lower head and thorax with long white hairs. 

 Thorax nearly black, with black hairs above and a little 

 silvery tomentum on the sides. Halteres yellow. Wings 

 nearly colourless, the veins black. Legs black, with grey 

 hairs and black bristles. Length, $ 11mm., ? 12 mm. ; wing, 

 (JlOmm., Jllmm. In the male the first three segments 

 of the abdomen have a series of long white hairs on their 

 posterior margins. 



Hab. Ashburton (W. W. Smith). 



Genus Itamus, Loew (1819). 



Wings and antennae as in Asilus. Genitalia of the male 

 much swollen. The tibiae with a red band. 



* I omit PromacMcs floccosus, Kirby (Trans. Ent. Soc. London, 1884), 

 from our list, as I think there must be a mistake in the locality. There 

 is no such place as Opabo in New Zealand, and so conspicuous an insect 

 could hardly have eluded all our collectors. Perhaps it was collected at 

 Opobo, in West Africa. Promachus has three submarginal cells. 



