Hutton. — On the Diptera brachycera of Neiv Zealand. 59 



taceous. Abdomen bluish-black, a testaceous spot generally 

 present on each side of the second segment. Femora and 

 tarsi black, the tibiae brown. Length, 10 mm. ; wing, 9 mm. 



Hab. Wellington. (Hudson) ; Christchurch and Queens- 

 town (F. W. H.). 



The first posterior cell is distinctly open, and the abdominal 

 segments have discal as well as marginal setae. 



The type has no testaceous spots on the abdomen, but there 

 are so many intermediate varieties between large spots and 

 none that I include them in a single species. 



Phorocera marginata. 



Eurigaster marginatus, Hutton, Cat. Dipt. N.Z., p. 51 (1881); 

 Hudson, Man. N.Z. Ent., p. 60, pi. vii., fig. 7. 



Vertex dark-grey, the frontal band dark-brown ; face and 

 cheeks with silvery reflections ; antennae, proboscis, and palpi 

 piceous ; epistome testaceous. Thorax dark-blue ; scutellum 

 margined with testaceous ; a tawny spot at the base of the 

 wings. Abdomen blue. Legs black. Length, 6-10 mm.; 

 wing, 6-7 mm. 



Hab. Wellington (Hudson) ; Christchurch and Dunedin 

 (F. W. H.). 



The first posterior cell is narrowly open. The abdomen 

 has discal as well as marginal setae. The statement in my 

 original description that the intermediate and hind tibiae are 

 rufous in the middle is a mistake. Sometimes the thorax has 

 greenish-blue reflections. 



Phorocera nefaria, sp. nov. 



Vertex bluish-grey, the frontal band black ; antennae, pro- 

 boscis, and palpi piceous. Thorax, scutellum, and abdomen 

 blue. A red spot at the base of the wings. Legs black. 

 Length, 8-10 mm. ; wing, 7-9 mm. 



Hab. Christchurch (F. W. H.). 



The first posterior cell is open. In the large specimens — 

 which I take to be the females — there is only one pair of 

 discal setae on the fourth segment, but in the small speci- 

 mens the discal setae are more numerous. 



Phorocera efferata, sp. nov. 



Vertex grey ; frontal band reddish - brown ; cheeks yel- 

 lowish-brown ; face white; epistome tawny. Antennae, 

 proboscis, and palpi piceous. Thorax black ; scutellum testa- 

 ceous or fulvous. Abdomen brown, tessellated on each side 

 with black and white. Legs black, the tibiae dark-brown. 

 Length, 7-10 mm. ; wing, 5-7 mm. 



Hab. Christchurch and Wellington (F. W.H.). 



