BY FREDERICK A. A. SKUSE, 389 



tellum yellowish-brown. Halteres brownish. Abdomen deep 

 bi'own, clothed with yellow hairs. Legs slender, moderately long, 

 greyish-brown with yellowish reflection. Wings almost hyaline, 

 densely covered with short brownish hairs ; no scales or scaly 

 hairs ; veins brown ; cupreous reflections. First longitudinal vein 

 wide of the costa, joining beyond half the length of the wing ; 

 second longitudinal arcuated beyond the cross-vein, reaching the 

 margin immediately below the apex of the wing ; cross-vein 

 distinct, situated somewhat befoi-e midway between oi-igin of 

 third longitudinal vein and tip of first longitudinal. (Description 

 drawn from dried specimen). 



Hah. — Sydney (Skuse). August. 



Ohs. — This it at once easily distinguished from the other Aus- 

 tralian species by its much larger size ; and belongs to that section 

 of the genus in which the wings have a prominently rounded base. 

 Nearly twice the size of G. mnjylipeiinis, Sk. 



Genus Lestremia, Macquart. 

 Lestremia, Macq., I.e. p. 144. 



444. Lestremia Sydneyensis, sp.n. 



2.— Length of antenniB 0*020 inch ... '50 millimetre. 



Expanse of wings 0-085 x 0-033 ... 2-14 x 0-84 



Size of body 0-070 x 0013 ... 1-77x0-32 



Antennse the length c^' the head and thorax taken together, 

 2--t- 10-jointed, sooty or dark brown, with short verticillate hairs. 

 Front and hypostoma dark brown or black. Palpi brown. Thorax 

 dark brown, opaque, with two rows of golden-yellow hairs ; 

 humeri, base of wings, and scu tellum ochreous-yellow, the latter 

 with golden-yellow hairs. Halteres yellow, the club somewhat 

 brownish. Abdomen umber brown, darker on the superior 

 segments, clothed with yellow hairs ; terminal || lamellae ovate. 

 Legs very slender, the hind pair considerably longer than the 

 others ; greyish-brown, densely covered with a minute pubescence. 

 Wings with the posterior angle and apex rounded, hyaline, 

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