694 DIPTERA OF AUSTRALIA, 



as long as broad, the terminal joint longer. Head black. 

 Eyes contiguous above. Palpi black or very deep brown. 

 Thorax black, levigate, with three longitudinal rows of 

 golden-yellow hairs, the intermediate one a single row of 

 short hairs, rather indistinct, reaching almost as far as the other 

 two, the lateral rows double, with somewhat longer hairs extending 

 almost to the scutelluni ; also some long golden-yellow hairs 

 just anterior to the origin of the wings; scutellum spai'sely covered 

 with long golden-yellow hairs. Halteres deep pitch-brown, with 

 a very short sparse pubescence, the stem paler. Abdomen wider 

 than the thorax, deep pitch-brown, somewhat paler between the 

 segments, covered with a veiy short yellowish pubescence ; lam- 

 ellae of the ovipositor small, oval. Coxa? deep pitch-brown, ferru- 

 ginous at the apex, and with some rather long yellowish haii-s on 

 the upper side. Femora deep pitch-brown with a tolerably dense, 

 short pubescence. Tibiae and tarsi almost fuliginous on account of 

 their dense pubescence. In the fore-legs the tarsi about ^ longer 

 than the tibiae ; in the intermediate legs the tarsi somewhat longer 

 than the tibiae ; and in the hind-legs the tibiae and tarsi are of 

 about equal length. Spurs about the length of the fourth tarsal 

 joint. First joint of the tarsi about 2| times the length of the 

 second ; second joint nearly ^ longer than the third ; third joint h 

 longer than the fourth, and somewhat longer than the fifth joint. 

 Wings pellucid with an almost fuliginous tint ; costal and two 

 first longitudinal veins obscure brown ; brilliant margaritaceous 

 reflections. First longitudinal vein reaching the costa a short 

 distance before the base of the fork and a little beyond the tip of 

 the posterior branch of the fourth longitudinal vein ; cross-vein 

 distinct, a short distance beyond the middle of the first longi- 

 tudinal ; petiole very pale and indistinct, shorter than the pos- 

 terior branch of the fork ; branches running almost parallel for 

 the greater part of their length, slightly divergent at the tips ; 

 the posterior branch very little arcuated at the liase. fg nearly 

 3^ times the length oi gh; kl shorter than Im. 



Bab. — Elizabeth Bay (Masteis). May. 



