406 DIPTERA OF AUSTRALIA, 



Obs. — I took two specimens in August, the other specimen was 

 captured by Mr. Helms in March. This species is quite unlike 

 any other known to me. 



b. Tip of second longitudinal vein and tip of the posterior branch 



of the fork equally near the apex of the wing. 



123. SCIARA LUCULENTA, Sk. 



S. luculenta, Sk., I.e. p. 705. 



Seven Q specimens obtained by Mr. Helms at Mount Kosciusko, 

 N.S.W., in March, at an elevation of 5000 ft., appear to un- 

 doubtedly belong to this species, but exhibit some differences. 

 The antennae are rather shorter (1-89 mm.), and the wings a little 

 larger. Joints of scapus sometimes brown. Thorax with three 

 dark brown stripes, or altogether deep brown or blackish, with a 

 greyish bloom; pleurae and pectus dark brown or black; scu- 

 tellum and metanotum brown or dark brown. Coxae and femora 

 ochreous or brownish-ochreous. Wings pellucid, with a yellowish 

 tint ; veins dark brown. First longitudinal vein joining the costa 

 a little nearer the base of the fork ; petiole scarcely more than 

 I the length of the anterior branch of the fork, almost as long as 

 the posterior branch, fg twice the length of gh. 



c. Tip of the posterior branch of the fork nearer the apex of the 



wing than the tip of the second longitudinal vein. 



124. SCIARA FUMIPENNIS, Sk. 



S. fumipennis, Sk., I.e. p. 706. 



One specimen from Mount Kosciusko, N.S.W., 5000 ft. 

 (Helms) ; in Coll. Australian Mioseum. 



C. Cross-vein situated beyond the middle of the first longitudinal 

 vein, 

 b. Tip of tJie second longitudinal vein and tip of the posterior 

 branch of the fork eqioally near the apex of the wing. 



