274 DIPTEllA OF AUSTRALIA, 



ochreous. Tibial spurs deep brown. In fore legs metatarsus 

 more than twice the length of tibia. Wings longer than entire 

 body, hyaline, with a brassy reflection ; veins yellow. Costal and 

 third longitudinal veins meeting considerably before apex of wing ; 

 auxiliary vein extremely indistinct, joining costa about mid- way 

 between middle cross-vein and tip of first longitudinal vein ; tip 

 of latter situated considerably nearer to tip of costa than to 

 middle cross-vein ; latter very little oblique appearing as portion 

 of third longitudinal vein ; second longitudinal vein wanting ; 

 fourth longitudinal vein very indistinct beyond cross-vein, almost 

 straight, nearly reaching wing-margin, its tip situated nearer to 

 tip of third longitudinal than to that of anterior branch of fifth 

 longitudinal fork ; base of latter lying considerably beyond middle 

 cross-vein, its posterior branch 1 the length of anterior. 

 Hob. — Sydney (Mr. J. Douglas Ogilby). April. 



264. Tanytarsus modicus, sp.n. 



9. — Length of antennae 0*012 inch ... O'CO millimetre. 



Expanse of wings 0-057x0-015 ... l-44x0-38 



Size of body 0-065 x 0-012 ... 1-66x0-30 



Antennse light brown. Head and clypens brown. Palpi 

 brownish-ochreous. Thorax yellow, with three distinct brown 

 stripes, lateral ones cuneate, anterior one with a median yellow 

 line ; two longitudinal rows of brown or brownish hairs ; pleurae 

 yellow ; pectus brownish ; scutellum yellow, fringed with brown 

 hairs ; metanotum brown. Halteres yellow. Abdomen about 

 twice the length of thorax, pale yellowish-brown, clothed with a 

 yellowish pubescence ', lamellae of ovipositor pale yellowish-brown. 

 Legs brownish-ochreous. Tibial spurs deep brown. In fore legs 

 metatarsus twice length of tibia. Wings nearly length of entire 

 body, pellucid, almost hyaline, with roseous and brassy reflections ; 

 very long hairs on posterior margin ; veins brownish. Costal 

 and third longitudinal veins meeting very much before apex of 

 wing and opposite tip of anterior branch of fifth longitudinal 

 fork ; auxiliary vein most indistinct, apparently joining costa a 



