128 DIPTERA OF AUSTRALIA, 



scales, with a white spot at the junction with the second longitu- 

 dinal vein. First longitudinal vein so close to the costa as to be 

 hardly discernible ; second longitudinal distinctly visible for the 

 whole of its length. (Description drawn from dried specimen). 



Hah. — Woronora (Masters and Skuse). October. 



80. Lasioptera vastatrix, sp.n. 



^. — Length of antennae 0'025 inch ... 0"63 millimetre. 



Expanse of wings 0-090 x 0035 ... 2-27 x 088 



Sizeof body 0-090xO-020 ... 2-27 x 0-50 



5. — Length of an ten n* 0'023 inch ... 057 millimetre. 



Expanse of wings 0-090 x 0-035 ... 2-27x0-88 



Size of body 0-095 x 0-030 ... 2-39x0-76 



Antennae black or dark brown, in the (J 2- + IS-jointed, in the 9 

 2-+ 14-jointed; joints sessile, .sub-globular, rather longer than broad, 

 smaller towards the end of the flagellum, with short pale pubescence. 

 Palpi }^ellowi.sh-brown. Thorax deep brown covered with golden- 

 yellow scales and pubescence ; two rows of erect hairs extending 

 from the collare to the scutellum, short at the collare, increasing in 

 length towards the hinder margin ; some long hairs before the 

 base of the wings (below this tuft and immediately in front of 

 the origin of the wings is a small patch of white scales) ; pleurae 

 brown. Halteres pale brown at the base, white scales on the 

 stalk, the club brown, darker in the 9 than the ^, with some 

 scattered dark brown or black scales. Abdomen covered superiorly 

 on each segment with deep brown scales, bordered behind with a 

 band of white in the ^, and yellowish in the 9 j this band in the 

 (J is almost as broad as that of the brown scales ; pale brown 

 between the segments ; pale brown underneath, covered with white 

 scales ; forceps in the ^ densely covered with white scales and long 

 hairs; 9 ovipositor pale brownish, appearing somewhat blunt- 

 Legs densely clothed with scales, appearing deep brown with jjale 

 reflections when viewed at a certain obliquity. Wings yellowish- 

 brown at the root, hyaline, with a weak cupreous reflection ; 



