66 BIPTERA 



breast white. Abdomen palish, basal segment darker, the whole 

 surface shining-white, covered with blackish hairs ; posterior clavate. 

 Head rust-yellow ; front deep brown round the ocelli, rim round the eyes 

 white ; bristles black, upon black warts. Palpi and antennae yellow ; 

 third joint rather shorter than the second ; style pubescent, whitish 

 towards the point. Legs yellow ; fore-part of the hips white ; tarsi 

 black-brown near the end. Wings tinged with rust-yellow, with brown 

 spots on the margin, so that the subcostal cell appears dark and light; 

 the rest with greyish spots, arranged in ring-like spots ; lower margin 

 brown ; the two cross- veins brown-margined, the lower one bent ; 

 mediastinal cell free from spots. 



Length, 3 lines. 



Sub-Family — Sciomtzin-s:, 



Third joint of the antennse oval or round, longer than the second, 

 nearly reaching the epistome ; face nearly perpendicular. Abdomen 

 generally elongated, nearly naked, of more than five segments, convex, 

 not terminated in a club. Legs moderate, without spines. Wings 

 not quivering; mediastinal vein double; first posterior cell not nar- 

 rowed. 



Genus-SAPROMYZA. 

 Fallen, 

 Head sub-hemispherical. Face a little inclined backwards ; epis- 

 tome naked, not projecting. Antennae short; third joint generally 

 oblong, compressed, the extremity obtuse ; style hairy or tomentose. 

 Wings sometimes quivering. 



S. DicHROMATA. Walker, I.e., p. 988 (1849). 



Body tawny, thinly clothed with short black hairs. Head and 

 thorax beset with a few black bristles ; sides of the face without 

 bristles ; epistome not prominent ; eyes pale red, convex, facets of the 

 fore-part a little larger than those elsewhere ; proboscis tawny, clothed 

 with tawny hairs ; palpi tawny, beset with black bristles. Antennae 

 tawny, very much shorter than the face ; third joint conical, downy, 

 about twice the length of the second ; style black, slender, downy, 

 much more than thrice the length of the third joint. Abdomen 

 pitchy, nearly obconical, much shorter than the thorax. Legs tawny, 

 clothed with short black hairs ; feet dark tawny ; claws black. Wings 

 tawny ; wing-ribs and veins tawny, the latter darker towards the tips ; 

 lower cross-vein nearly straight. Poisers tawny, with pitchy knobs. 



Length, 2| lines. 



New Zealand (Dr. Sinclair). 



