670 DESCRIPTIONS OF AUSTRALIAN MICRO-LEPIDOPTERA, 



other respects ; but superficially the species bear a much closer 

 resemblance to Strepsiceros, with which they agree in the costal 

 fold of male and neuration of hind wings, differing in the stalking 

 of veins 7 and 8 of forewings, and the absence of the notch on 

 the antennae of male. The species are small grey insects, marked 

 as in Strepsiceros. 



There are five species, distinguished as follows : 



A. Forewings mostly suffused with dark fuscous- 



grey . . . . . . . . . . . . 1 . triangulana. 



B. Forewings not dark grey. 



1. An oblique dark streak from inner margin 



before middle. 



a. This streak produced in disc to three- 

 fourths from base .. .. ..2. perspectana. 



I. This streak interrupted at middle ..3. thalassinana. 



2. Oblique streak represented only by a discal 



spot. 



a. Costal half of forewings grey .. ..4. quietana. 

 1. Costal half of forewings whitish .. ,.5. biscissana. 



1. Hoi. triangulana, n. sp. 



$ $ . 6"-7J". Head and thorax light ashy-grey, mixed with 

 blackish. Palpi light ashy-grey, internally whitish, second joint 

 with three oblique blackish bands. Antennae dark fuscous. 

 Abdomen grey. Legs grey-whitish, anterior and middle tibiae 

 and all tarsi banded with blackish, posterior tibiae grey. 

 Forewings narrow, costa slightly arched, hindmargin rounded, 

 rather oblique ; light ashy-grey, more or less wholly suffused 

 with dark fuscous-grey, especially along disc, and with indistinct 

 transverse dark fuscous strigulae ; costa strongly strigulated with 

 blackish ; a moderately broad, outwardly very oblique, straight 

 blackish streak, from inner margin before middle, reaching half 

 across wing in middle of disc, anteriorly suffused, posteriorly 

 sharply defined, truncate above, sometimes connected with costa 



