422 DESCRIPTIONS OF AUSTRALIAN MICRO-LEPIDOPTERA, XVIII., 



anterior legs infuscated. Forewings narrow, costa gently arched, 

 apex round-pointed, termen extremely obliquely rounded; pale 

 ochreous-yellowish; base of costa slenderly dark fuscous; plical 

 and second discal stigmata small, dark fuscous, sometimes indis- 

 tinct : cilia whitish yellowish. Hindwings grey-whitish; cilia 

 whitish, 



Carnarvon, West Australia, in October; two specimens. 



250. 3". centrothetis, n.sp. 



^(^. 13-14 mm. Head and thorax whitish-yellowish. Palpi 

 white, second joint dark fuscous except apex, tuft short. An- 

 tennae yellow-whitish, obscurely ringed with fuscous. Abdomen 

 pale whitish-ochreous. Legs fuscous, posterior pair ochreous- 

 whitish. Forewings narrow, costa slightly arched, apex almost 

 acute, termen extremely obliquely rounded; 6 sometimes out of 

 7; light ochreous-yellow; plical and second discal stigmata dark 

 fuscous, sometimes indistinct : cilia pale ochreous-yellow. Hind- 

 wings rather dark grey; cilia light grey, tips more whitish. 



Geraldton, York, and Perth, West Australia, in November^ 

 four specimens. Differs from X. chloranihes by the larger size, 

 shorter tuft of palpi, and presence of plical stigma. 



251. N. chloranthes, Low. 



{Ypsolophus chlorcmthes, Low., Proc. Linn. Soc. N. S. Wales, 

 1900, 418.) 



^Q. 11 mm. Head and thorax whitish-3^ellowish. Palpi 

 white, second joint dark fuscous except apex, tuft long. Antennae 

 ochreous-whitish, obscurely ringed with fuscous. Abdomen pale 

 whitish-ochreous. Legs fuscous, posterior pair ochreous-whitish. 

 Forewings narrow, costa slightly arched, apex almost acute, 

 termen extremely obliquely rounded; pale ochreous-yellow; costa 

 slenderly dark fuscous towards base; second discal stigma blackish, 

 distinct: cilia whitish-yellowish. Hindwings grey; cilia whitish- 

 grey. 



Broken Hill, New South Wales, in October and November; a 

 specimen received from Mr. Lower, and type also seen. 



