862 



REVISION OF AUSTRALIAN LEPIDOPTERA, 



median ; median from | of costa to beyond middle of inner margin, 

 somewhat darker than other lines, cloudy, straight ; second from * 

 of costa to I of inner margin, slender, straight ; subterminal rather 

 slender, very near second ; submarginal slender, indistinct ; a 

 hindmarginal row of black dots: cilia pale whitish-ochreous. 

 Hind wings with hind margin rounded ; veins 6 and 7 from a point 

 or separate ; colour and markings as in forewings, but first line 

 absent, discal dot on or immediately beyond median, second and 

 posterior lines rather carved. 



Geraldtou and Perth, West Australia ; in October and 

 November, several specimens. 



29. Ac. megalocentra, n. sp. 



$. 23 mm. Head whitish-ochreous, fillet white, face black. 

 Palpi blackish, beneath whitish. Antennae whitish, filiform, 

 ciliations 3. Thorax and abdoinen ochreous-whitish, with a few 

 black scales. Legs ochreous-white, anterior femora and tibia? 

 infuscated, posterior tibise well-developed, slender, with terminal 

 spurs, tarsi 1, fully developed. Forewings with costa posteriorly 

 moderately arched, hindmargin slightly rounded, oblique ; ochre- 

 ous-whitish, thinly sprinkled with black ; lines slender, very pale 

 greyish-ochreous : first only indicated towards inner margin, where 

 it is mixed with black ; median very faint, from disc at I to inner 

 margin before middle, preceded by a conspicuous black discal dot ; 

 second from * of costa to | of inner margin, slightly sinuate above 

 middle and above inner margin, with indications of dots on veins, 

 and a distinct blackish dot above middle ; subterminal and sub- 

 marginal cloudy, faint ; a hindmarginal series of black dots : cilia 

 ochreous-whitish. Hindwings with hindmargin rounded ; veins 

 6 and 7 stalked ; colour, second line, and posterior markings as in 

 forewings, but second line more irrorated with black throughout, 

 without separate dots ; a faint cloudy median line at g j a large 

 black discal dot beyond this. 



Adelaide, South Australia ; one specimen in October. 



