498 DESCRIPTIONS OF AUSTRALIAN MICRO-LEPIDOPTERA, 



with darker fuscous, more distinctly on costa ; a dark fuscous 

 quadrate spot on inner margin at 5 ; a dark fuscous irregular 

 fascia from beneath costa before middle to inner margin beyond 

 middle, preceded and followed on inner margin by quadrate spots 

 of whitish suffusion ; an indistinct dark fuscous streak from 

 beneath costa near apex to anal angle : cilia grey-Avhitish. Hind- 

 wings light grey ; cilia grey-whitish. 



Sydney, New South Wales ; one specimen in June. Although 

 an obscure species, it seems to be sufficiently distinguished by the 

 ochreous tinge of the head, form of foi'ewings, and light grey 

 hind wings. 



20. Xysm. crepuscularis, n.sp. 



^. 18 mm. Head, palpi, thorax and abdomen grey, mixed 

 with whitish ; abdomen somewhat ochreous-tinged posteriorly. 

 Antennae fuscous. Legs dark fuscous, posterior pair grey-whitish. 

 Forewings elongate, costa moderately arched, apex obtuse, hind- 

 margin slightly rounded, rather strongly oblique; 7 absent; grey, 

 with a few whitish scales, and some scattered dark fuscous scales 

 tending to form short strigulse, especially on costa and inner 

 margin ; two obscure parallel series of about four dark fuscous 

 dots from about 5 of costa to g of inner margin, enclosed space 

 slightly whitish ; a well-marked dark fuscous dot in disc at ^ : 

 cilia whitish-grey. Hindwings grey ; cilia whitish-grey. 



Albany, West Australia ; one specimen in September. Also 

 an inconspicuous species, specially characterised by the peculiar 

 markings of forewings. 



21. Xysm. heliochares, n.sp. 



^2- 17-20 mm. Head and palpi whitish mixed with dark 

 fuscous. Antennse dark fuscous. Thorax and abdomen grey 

 mixed with whitish. Legs dark fuscous, apex of joints and 

 posterior pair grey-whitish. Forewings elongate, costa modei-ately 

 arched, apex obtuse, hindmargin gently rounded, rather strongly 

 oblique ; 7 and 8 long-stalked ; in ^ pale fuscous, irrorated with 

 whitish, with indistinct scattered fuscous strigulse, in ^ whitish 

 strigulated with blackish-fuscous ; a straight dark fuscous line 



