702 REVISION OF AUSTRALIAN LEPIDOPTERA, 



9. LlTHOSIA, F. 



Tongue well-developed. Antenna? in £ filiform, evenly ciliated, 

 with scattered much longer cilia. Palpi rather short, porrected, 

 filiform, terminal joint short, obtuse. Thorax rather hairy beneath. 

 Forewings with vein 2 from middle, 3, 4, 5 approximated at base, 

 7 and 8 out of 9, 10 connected with 9 by bar. Hind wings with 

 vein 3 almost from point with or out of 4, 4 and 5 stalked or 

 coincident, 6 and 7 stalked, 8 from middle. 



Sect. A. veins 4 and 5 of hindwings coincident. 



19. Lith. chionora, n. sp. 



£. 29 mm Head, palpi, and antennae whitish-yellowish. 

 Thorax white. Abdomen and legs pale ochreous-yellowish, 

 anterior and middle tibiae and tarsi infuscated. Forewings elongate, 

 moderately dilated, costa posteriorly moderately arched, apex 

 obtuse, hindmargin obliquel} 7 rounded, slightly sinuate ; white ; 

 costal edge slenderly ochreous-yellow : cilia white. Hindwings 

 and cilia pale ochreous-yellow ; 3 and 4 stalked. 



Sydney, New South Wales; one specimen (Coll. Masters). 



Sect. B. veins 4 and 5 of hindwings stalked. 



20. Lith. bicosta, Walk. 



{Lithosia bicosta, Walk. Bomb. 506 ; L. fraterna, Butl., Trans. 

 Ent. Soc. Lond. 1877, 349.) 



(J 9- 29-31 mm. Head and palpi orange, face and antennse 

 dark fuscous. Thorax fuscous-grey, shoulders orange. Abdomen 

 hairy, whitish-ochreous, sometimes greyish-tinged. Legs grey, 

 posterior pair whitish-ochreous. Forewings elongate, moderately 

 dilated, costa gently arched, apex obtuse, hindmargin rather 

 obliquely rounded; grey, slightly brownish-tinged; a slender orange 

 costal streak, bordered beneath by a slender white streak : cilia 

 grey, tips whitish. Hindwings and cilia light ochreous-yellow ; 

 3 and 4 almost from point. 



Sydney, New South Wales ; Tasmania ; Mount Lofty, South 

 Australia; October; not uncommon. 



