Hutton. — On the Diptera brachycera of Neiv Zealand. 9 



This species has its nearest ally in 0. dorsalis. In the 

 female the black of the vertex ends anteriorly in a line which 

 is concave to the front and passes down in front of the eyes to 

 the level of the bases of the antennae. 



My specimens have been in alcohol, and therefore the 

 colours have been chauged. 



Odontomyia fulviceps. 



Stratiomys fulviceps, Walker, Cat. Dipt, in Brit. Mus., part v., 



Supp., p. 56 (1854) ; Hutton, Cat. Dipt. N.Z., p. 37. 



In this species the thorax has more golden down than in 

 any of the others, and in the male there are no long hairs on 

 the sides. The scutellum is green, or tawny when faded. In 

 the female the vertex is green, except the ocellar triangle, 

 which is black. Length, 8-10 mm. ; wing, 6-7 mm. 



Hab. Wellington (Hudson) ; Ohristchurch (F. W. H.). 



Specimens taken Home by the "Erebus" and "Terror" 

 were probably collected at the Bay of Islands. 



Odontomyia australiensis. 



Odontomyia australiensis, Schiner, Eeise der " Novara," Dipt., 

 p. 59 (1868) ; Hutton, Cat. Dipt. N.Z., p. 38. 



Antennae yellow; thorax copper-red. Length, 9 mm. 

 I do not know this species. 



Odontomyia dorsalis. 



Stratiomys dorsalis, Walker, Cat. Dipt, in Brit. Mus., p. 536 

 (1849); White, Vov. "Erebus" and "Terror," Insects, 

 pi. 7, fig. 18 ; Hutton, Cat. Dipt. N.Z., p. 37. 



A small species, distinguished by the absence of spines 

 on the scutellum. The black on the vertex of the female re- 

 sembles that of 0. chathamensis. The base of the scutellum 

 is black. Length, 6^-7 mm. ; wing, 6-7 mm. 



Hab. Auckland (Colonel Bolton) ; Napier (F. W. H.). 



Odontomyia angusta. 



Stratiomys angusta, Walker, Cat. Dipt, in Brit. Mus., part v., 

 Supp., p. 57 (1854) ; Hutton, Cat. Dipt. N.Z., p. 38. 



Abdomen black. Vertex and disc of the face black. In a 

 female specimen I have of this species, from Christchurch, 

 there is a large round black spot between the antennae and 

 the mouth, and the black on the vertex is concave in front. 

 The antennae are black and the halteres bluish-green. It 

 differs from Walker's description in having the legs tawny 

 with brown markings, and in the veins of the wing being pale- 

 tawny. It is also only 6 mm. in length, and the wing 5 mm., 

 while the type is 7^- mm. in length. 



