736 REVISION OF AUSTRALIAN LEPIDOPTERA, 



24. Hestiarcha, n. g. 



Tongue rudimentary. Antennae in £ moderately bipectinated 

 throughout. Palpi very short, filiform, drooping. Forewings 

 with vein 2 from f. 3 and 4 stalked, 5 and 6 absent, 7 and 8 out 

 of 9. Hindwings with veins 4, 5, 6, and transverse vein absent. 



69. Hest. pyrrhopa, n. sp. 



£. 13-15 mm. Head, palpi, antennae, thorax, abdomen, and 

 legs ochreous-brown. Forewings very elongate-triangular, costa 

 hardly arched, apex rounded, hindmargin obliquely rounded ; 

 wholly ochreous-brown. Hindwings bright orange ; a rather 

 narrow dark fuscous hindmarginal band ; cilia dark fuscous. 



Port Lincoln, South Australia ; four specimens in November. 



25. Thallarcha, n. g. 



Tongue well-developed. Antennae in £ moderately bipectinated 

 throughout. Palpi moderate, slender, ascending, with appressed 

 scales, terminal joint moderate, somewhat pointed. Forewings 

 with vein 2 from middle, 8 and 9 out of 7. Hindwings with 

 veins 6 and 7 stalked, 8 from middle. 



A. Forewings ochreous-yellow 73. chrysochares. 



B. „ not 



a. Hindwings with grey discal dot 72. albicollis. 



b. ,, without discal dot. 



1. Collar white 71. phaedropa. 



2. „ dark fuscous 70. phalarota. 



70. Thcdl. phalarota, n. sp. 



^. 16-18 mm. Head ochreous-white, face, palpi, antennae, 

 thorax, and abdomen dark fuscous, anal tuft yellowish. Legs 

 dark fuscous, ringed with yellowish, posterior pair pale yellowish. 

 Forewings elongate-tiiangular, costa somewhat sinuate, posteriorly 

 moderately arched, apex rounded, hindmargin obliquely rounded ; 



