118 AUSTRALIAN GELECHIANAE 
THIOTRICHA ARGYREA 1. Sp. 
aoyveeos, silvery. 
9.12 mm. Head and thorax shining-white. Palpn 
white. Antenne white, towards apex dark-fuscous. 
(Abdomen broken). Legs white; anterior tibize ard tarsi 
blackish ; middle and posterior tarsi annulated with blackish. 
Forewings with costa straight, apex pointed; shining- 
white ; three suffused grey dorsal blotches, sub-basal, 
median and tornal; a short oblique grey streak from ¢ 
costa, succeeded by a narrow parallel blackish streak ;. 
a blackish apical dot ; cilia grey, on middle of termen bases 
white, with a shining metallic oblique bar beneath apex. 
Hindwings with apical process 3; grey; cilia grey, at apex 
white with a subapical fuscous bar. 
N.Q., Atherton, in June ; one specimen. 
THIOTRICHA ACRONIPHA. 
axoovipos, with snow white apex. 
2. 11 mm. Head, palpi and thorax white. Antenne: 
white, extreme apex grey. Abdomen whitish. Legs 
whitish ; anterior tibiz and tarsi fuscous anteriorly. Fore- 
wings with costa straight, apex pointed ; whitish, towards 
apex slightly ochreous-tinged ; a short longitudinel fuscous 
streak ending in termen below middle; from its anterior 
end a similar streak parallel to termen; a short oblique 
streak from costa at %; an elongate clear white apical dot 
edged above with black beneath with fuscous ; cilia pale- 
grey, bases ochreous-tinged on apex with a slight fuscous 
median line. Hindwings with apical process }; pale-grey ; 
a minute fuscous apical dot; cilia pale-grey, on apex 
whitish with fuscous apices. 
Q , Stradbroke Island, in December ; one specimen. 
THIOTRICHA HEMIPHAEA 2. Sp. 
Eutpaiog, half-dusky. 
3. 10 mm. Head shining-white.  Palpi fuscous,. 
internal surface white. Antenne fuscous, darker towards 
apex, basal joint white, ciliations in g 3. Thorax grey- 
whitish. Abdomen grey. Legs white ; anterior tibie and 
