OP NEW ZEALAND. 49 



C. RUFicEPs. Sc]iiner,l.c., p. 323 (1868). 



Thorax Mack, dusted witli white, and with four longitudinal black 

 streaks, the middle pair diverging behind. Scutellum similar, the 

 point rust-yellow ; sides of the breast grey. Abdomen of male olive- 

 green, rather shining, with a few opaline spots, and with rather distant 

 hairs ; of the female black dusted with slate-blue. Bristles only on 

 the margins of the segments, the last segment with many bristles. 

 Head rust-yellow, dusted with ochre; front broad, with three close 

 rows of short weak bristles, pale yellowish-red. Antennae yellowish- 

 red ; the second joint with black bristles above ; the third is broad, 

 blunt, and three times the length of the second. Palpi reddish- 

 yellow. Lips the same colour ; proboscis brown. Legs bright 

 yellowish - red ; tarsi brown; thighs and tibige with close black 

 bristles. Wings hyaline ; lower cross-vein near the middle of the 

 discoidal cell. Scales large, white. 



Length, 3 lines. 



aenus-NEMOR^A. 



Macquart. 



Body broad. Palpi slightly salient. Face generally naked; 

 epistome slightly or not salient. Front narrow posteriorly in the 

 male. Antennae almost hidden, rather short, not reaching the epis- 

 tome ; second joint elongated, the third more than double the second ; 

 first joint of the style short. Eyes hairy. Abdomen oval, often with 

 two bristles in the middle of the second and third segments. First 

 posterior cell reaching the border of the wing a little before the tip ; 

 discoidal vein arched after the elbow ; the second transverse oblique, 

 slightly arched. 



N. ORAsus. Walker, I.e., p. 741 (TacMna), (1849). 



Body black, clothed with black hairs and bristles. Head covered 

 with dull-tawny bloom, clothed behind and beneath with black hairs, 

 pitchy and furrowed between the ocelli and the base of the antennae ; 

 adorned with a large ferruginous spot on each side of the face ; epis- 

 tome not prominent, no bristles on the sides of the face. Eyes 

 pitchy, hairy. Proboscis black, slender, long, clothed at the tip with 

 a few tawny hairs. Palpi pale pitch-colour, long, slender, beset with 

 black bristles. Antennae hardly three-fourths the length of the face; 

 first and second joints dark ferruginous ; third joint black, slightly 

 concave above, equally convex below, rounded at the tip, about thrice 

 the length of the second joint ; style black, the second joint rather 



