40 Transactions. — Zoology. 



Genus Milesia, Latreille (1802). 



Body narrow. Eyes nearly contiguous in the male. 

 Wings incumbent in repose ; the marginal cell open and the 

 submarginal cell simple ; the chief cross-vein nearer to the 

 apex than to the base of the discal cell. 



Milesia bilineata. 



Milesia bilineata, Walker, Cat. Dipt, in Brit. Mus., p. 566 

 (1849) ; Button, Cat. Dipt. N.Z., p. 43. 



Above black, with two pale-tawny stripes on the thorax. 

 Clothed with tawny hairs below. Legs black. Length, 

 15 mm. 



Hab. Wellington (Earl). 



I do not know this species. 



Genus Syephus, Fabricius (1775). 



Body narrow, linear or oblong; eyes contiguous in the 

 male. Wings incumbent in repose ; the submarginal cell 

 simple ; the chief cross-vein much nearer to the base than to 

 the apex of the discal cell. Third joint of the antennae oval 

 or round. Abdomen with five visible segments. 



Key to the Species. 



Stripes on the abdomen interrupted in the middle. 



Face grey . . . . . . . . . . S. novce-zealandice. 



Face yellow. 



Third joint of antennae round, piceous . . S. ortas. 



Third joint of antenrjfe oval, yellow . . S. obesus. 



Second and third stripes on the abdomen continuous S. ropalus. 



Syrphus novse-zealandise. 



S. novce-zealandice, Macquart, Dipt. Exot., Supp. 5, p. 115 

 (1855); Hutton, Cat. Dipt. N.Z., p. 44. S. ortas, Hud- 

 son, Man. N.Z. Ent., p. 56, pi. vii., fig. 3. 



Face greyish-white ; vertex and prominence shining-black. 

 Antennas black, the third joint subcircular. Thorax greenish- 

 bronze ; scutellum shining, fulvous, with a dark base. Abdo- 

 men black, second, third, and fourth segments with a narrow, 

 transverse, subbasal fascia, broadly interrupted in the middle, 

 which is yellow or orange dusted with white ; the anterior 

 angles of the sixth segment yellow. Legs dark-brown, the 

 middle and fore tibiae lighter. Veins of the wing black. 

 Length, 8-10 mm.; wing, 8-9 mm. 



Hab. Throughout New Zealand (very common) ; Chatham 

 Islands. Said to be found also in Polynesia. 



