BY E. MEYRICK. 597 



178. Ther. chionozyga, n.sp. 



^9. 11-14 mm. Head white, more or less mixed or suffused 

 with fuscous. Palpi white, terminal joint mixed with fuscous. 

 Ant^nnfe whitish. Thorax white, somewhat mixed with fuscous. 

 Abdomen whitish-grey. Legs whitish, anterior pair dark fuscous. 

 Forewings elongate, narrow, costa moderately arched, apex acute, 

 hindmargin sinuate, very oblique ; 7 and 8 separate ; ochreous- 

 grey, dorsal half densely irrorated with white ; a moderate white 

 costal streak from near base to |, attenuated towards extremities ; 

 sometimes three small round fuscous spots indicated below fold 

 near base, and in disc at ^ and |, but these are usually absent : 

 cilia light greyish-ochreous mixed or suffused with white. Hind- 

 wings grey ; cilia whitish-grey. 



Bathurst (2500 feet) and Sydney, New South Wales ; Georges 

 Bay, Tasmania ; Port Lincoln, South Australia ; York, West 

 Australia ; from September to December, eight specimens. 



40. Amphithera, n.g. 



Head with dense rough hairs on crown, face smooth ; ocelli 

 present ; tongue developed. Antennae 1^, in ^ serrate, shortly 

 ciliated (|), basal joint moderate, with pecten. Labial palpi 

 moderately long, curved, porrected, slender, with appressed scales, 

 terminal joint as long as second, pointed. Maxillary palpi rudi- 

 mentary. Posterior tibise rough-haired. Forewings with vein 1 

 furcate, 7 and 8 stalked, 7 to costa, 11 from middle. Hind wings 

 1^-1^, elongate, trapezoidal, cilia ^-| ; veins 3 and 4 from a point. 



This can only be regarded as a most primitive form of the 

 family, in wing-structure closely approaching the Plutellidae and 

 early Gelechiadae; the proportionately broad hind wings, especially 

 developed in the female, are quite exceptional in this family. 

 Thereutis would appear to have been directly developed from it. 



179. Aniph. heteromorpha, n.sp. 

 ^ 9-11 mm., 9 13-14 mm. Head white mixed or partly suffused 

 with fuscous, in 9 ochreous-tinged. Palpi dark fuscous, apex 

 whitish. Antennae whitish, towards base fuscous. Thorax white 



