OF NEW ZEALAND. 43 



Genus-MILESIA. 



Latreille. 



Head much depressed. Face often without any prominence. 



Antennae inserted under a projection of the front ; the third joint 



orhicuLar. Posterior femora rather bent and keeled. First posterior 



cell with the base oblique. 



M. BiLiNEATA. Walker, I.e., p. 566 (1849). 



Body black. Head as broad as the thorax, covered behind and in 

 front with pale tawny down. Mouth and antennae black. Eyes 

 black; facets on the fore-part of the crown larger than those else- 

 where. Thorax adorned with two pale tawny stripes, its sides and 

 the breast also pale tawny ; breast covered with hoary bloom. Scutel- 

 lum clothed with long tawny hairs. Abdomen long-obconical, longer 

 and a little narrower than the thorax, clothed beneath with tawny 

 hairs. Legs black, clothed with short tawny hairs ; hind thighs 

 rather thick, toothed beneath ; claws and foot-cushions yellow ; tips 

 of claws black. Wings dark grey; wing-ribs and veins black. Poisers 

 tawny. 



Length, 7 lines. 



Wellington (Mr. Earl). 



Genus-SYRPHUS. 



Fabricms. 



Face prominent. Palpi and maxillary bristles more or less 

 elongated. Antennae inserted under a projection of the front, 

 rather distant at the base; third joint oval; the style slightly pubes- 

 cent. Eyes generally naked. 



S. ORTAS. Walker, I.e., p. 585 (1849). 



Head blue, clothed with black hairs, covered in front with pale- 

 yellow down ; mouth black ; feelers piceous, ferruginous at the base ; 

 bristles black. Thorax brassy-green, clothed with tawny hairs ; 

 scutellum tawny ; breast hoary, clothed with white hairs. Abdomen 

 deep black, thinly clothed with black and whitish hairs, adorned with 

 four yellow bands, which are interrupted along the mid-back, especially 

 towards the tip. Legs tawny, clothed with whitish hairs ; feet and 

 hind legs pitchy. Wings colourless ; wing-ribs and poisers tawny ; 

 veins black. 



Length of the body, 44 lines. 



New Zealand (Dr. Sinclair). 



