BY A. JEFFERIS TURNER, M.D., F.E.S. 163 



Oressauli lachn.ea, n. sp. 



Xa)(yaL0<i , iiairy. 



(5 9 24-28 mm. Head dark-fuscous with a few whitish 

 hairs. Palpi dark-fuscous ; internal surface w^hitish. 

 AntemijB dark-fuscous, cihations in ^ 2. Thorax dark- 

 fuscous. Abdomen dark-fuscous : beneath mixed with 

 \\'hitish. Legs dark-fuscous mixed with wliitish ; under- 

 surface <iiid spurs whitish. Forewings broadly triangular, 

 costa somewhat arched at base, then straigh , apex rounded, 

 termen ])ow^ed, obUque ; dark- fuscous irrorated with pale- 

 ochreous and more s^mrsely with milk-white scales ; cilia 

 fuscous, apices whitish. Hindwings with termen rounded ; 

 ochreous-fuscous, towards base dark-fuscous ; cilia as 

 forewings. 



Type in Coll., L^^ell. 



V. Mount Hotham, in February ; six specimens. Mr. 

 <jreo. Lyell writes : "1 took this species flying close to the 

 ground on the extreme summit of Mount Hotham (just 

 over G,200 feet). It was a fast bustling flyer, and on account 

 of its sombre colour, somewdiat difficult to follow with the 

 eye. A fortnight's stay at Mount St. Bernard, at a couple 

 of hundred feet lower elevation, failed to find it.'' 



