33 



11. Crypt, albicosta, Lw. 



(Cryptojyhasa alhacostctj Lw., Ins. N. S. Wales, Z. Linn. Ent. 

 IX., 350 [rect. albicostcc].) 



Both sexes 40-56 mm. Head, antennae, and thorax white; 

 antennal pectinations of male pale ochreous. Palpi white, base 

 dark fuscous above. Abdomen rather dark grey, sides, apex, and 

 segmental margins white. Legs white, anterior tarsi dark 

 fuscous with white rings. Forewings oblong, posteriorly slightly 

 dilated, costa slightly arched, apex rounded, hind margin hardly 

 oblique, nearly straight, rounded beneath ; 2 from f ; shining- 

 white ; a very large subtriangular grey blotch, more or less 

 suffused with ochreous-brown and sprinkled with black, resting 

 on inner margin from before ^ to -f, its apex nearly touching 

 costa near base ; a minute black grey-circled dot in disc at f, 

 resting on posterior margin of blotch ; a grey sometimes white- 

 centred reniform spot in disc at f ; a more or less developed grey 

 fascia from middle of disc, and another from beyond reniform 

 spot, not rising above it, confluent below it and running into 

 posterior angle of blotch, variable in breadth, rarely broadened 

 to coalesce with hindmarginal fascia ; a moderate light grey 

 hindmarginal fascia, including a brownish-ochreous hindmar- 

 ginal line, preceded by a row of black dots circled with ochreous- 

 whitish : cilia whitish, with an ochreous-fuscous subbasal and 

 paler grey posterior line. Hind wings with veins 6 and 7 from a 

 point or short-stalked ; rather dark fuscous-grey ; a cloudy white 

 streak along upper half of hindmargin, dilated into a spot at 

 apex ; cilia white. 



Newcastle and Sydney, New South Wales; Melbourne, Vic- 

 toria ; Georges Bay, Tasmania ; bred in November and Decem- 

 ber rather commonly, but not taken at large. Larva 16-legged, 

 rather stout, wrinkled, cylindrical, with long scattered whitish 

 hairs, head with two blunt spines on forehead, and other shorter 

 ones towards mouth, second segment large ; grey- whitish, finely 

 wrinkled transversely with blackish-grey, segmental divisions 

 suffused with dark grey; segments 5-12 with a transverse 

 elongate brownish-red dorsal spot towards anterior margin, inter- 

 rupted in middle, an oblong-ovate oblique brownish-red spot on 

 side, spiracles black, a slender longitudinal black wrinkled sub- 

 spiracular line, beneath which are three smaller ochreous-red 

 spots in an inverted triangle, two upper ovate, lower more 

 elongate ; fourth segment with dorsal spot much smaller, two 

 other very small spots behind it, and an irregularly double sj)ot 

 on side before spiracles, besides the other lateral sjDots ; third 

 segment with a large irregular ochreous-reddish spot on each side 

 of back posteriorly, a similar one below it anteriorly, and usual 

 lateral spots ; second segment reddish-ochreous-brown ; head 



