724 REVISION OF AUSTRALIAN LEPIDOPTEKA, 



veins ; a hindmarginal series of black dots : cilia grey, irrorated 

 with white, and with scattered dark fuscous scales. Hindwings 

 grey ; cilia whitish-grey. 



Thursday Island, Torres Straits (Lucas) ; Glen Innes (3000 

 feet) and Sydney, New South Wales ; Melbourne, Victoria ; 

 Mount Lofty, South Australia; in August, October, and December, 

 six specimens. 



51. Sor. arachneis, n. sp. 



<J. 22 mm. Head, palpi, and thorax white, irrorated with dark 

 grey ; palpi 2. Antennae whitish. Abdomen whitish- grey. Legs 

 whitish, irrorated with dark fuscous. Forewings elongate- 

 triangular, costa moderately arched, apex obtuse, hindmargin 

 rounded, somewhat oblique ; grey, very finely irrorated with white 

 and blackish ; an oblique black strigula on costa near base ; a 

 very fine indistinct blackish line from ^ of costa to ^ of inner 

 margin, acutely angulated outwards above and below middle ; a 

 very fine indistinct somewhat interrupted blackish line from a spot 

 on costa before middle to beneath costa at f , thence bent parallel 

 to hindmargin, below middle twice acutely angulated inwards ; a 

 faint darker irregular subterminal line : cilia grey, irrorated with 

 white and blackish points. Hindwings and cilia grey -whitish. 



Sydney, New South Wales ; in October, one specimen. 



52. Sor. epicentra, n. sp. 



£ Q. 25-26 mm. Head, palpi, and antennas white, finely 

 sprinkled with dark fuscous ; palpi 1|, terminal joint thick. 

 Thorax white, irregularly spotted with fuscous arid thinly 

 sprinkled with dark fuscous. Abdomen grey- whitish. Legs 

 white mixed with fuscous, anterior tarsi dark fuscous ringed with 

 whitish. Eorewings elongate-triangular, costa moderately arched, 

 apex rounded, hindmargin rather obliquely rounded ; white, 

 irrorated with pale ochreous-grey, and a few scattered black 

 scales ; tufts anteriorly light ochreous-grey, posteriorly white ; a 



