164 Transactions. — Zoology. 



irrorated with light grey ; a gvey suffusion along inner margin 

 from base to anal angle ; a small blackish spot on costa almost 

 at base ; a black dot beneath costa at ±, and a second larger 

 one beneath it on fold ; a thick blackish transverse somewhat 

 oblique streak at |, reaching from beneath costa to fold, margins 

 irregular ; two black dots nearly longitudinally placed in middle 

 of disc, and a third in disc at f : cilia grey-whitish, with a 

 cloudy blackish-grey line near base round apex and upper part 

 of hindmargin, interrupted into spots. Hindwings grey ; cilia 

 grey-whitish. 



Invercargill ; one specimen in December. 



3. Thiotricha, n. g. 



Head smooth ; ocelli present ; tongue well-developed. An- 

 tenna? f of fore wings, in male serrate, clothed with extremely 

 long fine cilia (5-6), basal joint elongate, without pecten. 

 Labial palpi moderately long, smoothly scaled, recurved, second 

 joint hardly chickened or somewhat rough beneath, terminal 

 joint as long as second, acute. Maxillary palpi obsolete. Pos- 

 terior tibia? clothed with long hairs above. Forewings with 

 vein 1 furcate, 2 absent (coincident with 3), 3, 4, 5 approxi- 

 mated, 6 rising out of 7 or separate, 7 to costa, 8 absent 

 (coincident with 7), 9 and 10 more or less approximated to 7 at 

 base, 11 from beyond middle of cell. Hindwings as broad as 

 forewings, trapezoidal, apex tolerably acute, hindmargin some- 

 what sinuate, cilia 1^ ; vein 2 widely remote from 3, 3 and 4 

 from a point, 5 bent, 6 and 7 stalked. 



Sharply characterised by the extraordinarily developed cilia- 

 tions of the antenna 1 of male (which are unique in this family), 

 and the absence of veins 2 and 8 of the forewings. 



Sect. A. — Vein 6 of forewings separate from 7. 



3. Thiotr. tetraphala, n. sp. 



Male. — 12 mm. Head, palpi, antenna;, thorax, abdomen, 

 and legs whitish-grey, somewhat shining; second joint of palpi 

 dark grey , anterior legs dark grey. Forewings elongate, 

 narrow, acately pointed ; light grey, somewhat irrorated with 

 grey-whitish in disc ; three dark grey spots ; first basal ; second 

 triangular, in disc before middle ; third larger, oblong, beyond 

 middle, resting on submedian fold : cilia grey-whitish, with a 

 suffused interrupted grey line near base round apex. Hind- 

 wings grey ; cilia whitish-grey. 



Dunedin ; one specimen in February. 



Sect. B. — Vein 6 of forewings rising out of 7. 



4. Thiotr. thorybodes, n. sp. 



Male, Umale. — 11-13 mm. Head, palpi, antenna?, thorax, 

 and abdomen whitish-ochreous ; second joint of palpi dark 



