266 



ACIDALIA TENUIPES, Tum. 



Northern Territory : Melville Island. 



ACIDALIA SYNETHES, n. Sp. 

 a-vvrjOrj^, akin. 



cS , 30 mm. Head pale grey; fillet white; face blackish. 

 Palpi about 1 ; grey-whitish becoming dark fuscous towards 

 apex. Antennae grey-whitish; in male serrate, ciliations 2J. 

 Thorax and abdomen pale grey. Legs pale grey; posterior 

 pair in male whitish, tibiae dilated, tarsi J. Forewings tri- 

 angular, costa gently arched, apex tolerably pointed, termen 

 slightly bowed, slightly oblique; pale grey without irrora- 

 tion; a dark-fuscous, subcostal, median, discal dot; lines very 

 faintly marked ; antemedian line obsolete or nearly so ; a very 

 slender, finely dentate, sinuous line from § costa to f dorsum, 

 a similar line from f costa to f dorsum, forming 

 minute dots on veins; a very faint, whitish, dentate, 

 subterminal line; a terminal series of fuscous interneural 

 dots; cilia pale grey. Hindwings with termen rounded; as 

 forewings but some, grey irroration towards base, discal dot 

 at J, lines even less distinct. 



Very like A. liofis, Meyr., from Mount Kosciusko, but 

 greyer in colour, without any fuscous irroration, and posterior 

 tarsi of male rather shorter relatively to tibiae. Type in 

 Coll. Lyell. 



Western Australia: Waroona, in January; one specimen 

 received from Mr. G. F. Berthoud. 



ACIDALIA PERIALITRGA, n. Sp. 



7r€pLa\ovpyos, dyed with purple all round. 



9, 29 mm. Head grey; fillet white; face dark fuscous. 

 Palpi IJ; whitish becoming fuscous towards apex. Antennae 

 grey, towards base whitish. Tliorax grey. Abdomen grey- 

 whitish sparsely irrorated with fuscous. Legs grey; posterior 

 pair and middle femora ochreous-whitish with slight fuscous 

 irroration. Forewings triangular, costa gently arched, apex 

 round-pointed, termen bowed, oblique; grey with a few scat- 

 tered fuscous scales; some pale-purplish suffusion towards 

 base; a minute, fuscous, median, discal dot beneath costa; 

 a band of pale-purplish suffusion, its inner edge from f costa 

 to I dorsum, slightly curved inwards above dorsum, outer 

 edge formed by a fine, crenulate, fuscous line at about ^, 

 thickened to form minute dots on veins; a terminal series 

 of dark-fuscous interneural dots; cilia pale purple with a 

 few fuscous scales, apices grey-whitish. Hindwings with 



