BY E. MEYUICK. 655 



in habits, and usually taken at lamps ; characteristics probably 

 shared by all the species of the genus. 



88. Thai, angulosa, Walk. 



(Thalaina angulosa, Walk. Suppl. 289.) 



2- 48 mm. Head orange, face whitish. Thorax white, 

 anteriorly ochreous-tinged, with an orange spot on shoulders. 

 Forewings silvery-white ; markings orange, black-margined ; a 

 moderate streak from base along costa, thence straight to middle 

 of inner margin; a streak from middle of this to anal angle, 

 meeting apex of a dorsal streak from near base, and another from 

 costa at £ (its anterior angle produced) to apex of median streak : 

 cilia orange. Hindwings white ; a moderate dark fuscous fascia 

 from costa near apex to anal angle, much dilated above middle, 

 where it touches hindmargin with three projections. Under- 

 surface of hindwings with same markings, but upper half of 

 dilation orange. 



Adelaide, South Australia ; one specimen (Coll. Lucas). 



89. Thai, imcripta, Walk. 



(Thalaina inscripta, Walk. Bomb. 661 ; T. principaria, HS. 

 Exot. 446, Gn. X, 227.) 



(JQ- 36-38 mm. Head white, crown mixed with greyish- 

 ochreous. Antennal ciliations of £ -J-. Forewings with apex 

 slightly prominent, hindmargin bowed, slightly waved ; 1 1 

 anastomosing with 12 and 10; sil very-white ; markings light 

 yellowish-brown, edged with dark fuscous ; a streak along basal 

 fourth of costa ; a streak along inner margin from near base to 

 anal angle, and sometimes a broader streak along submedian fold 

 from before middle, confluent posteriorly with this and with lirst 

 fascia; a narrow nearly straight or somewhat irregular fascia 

 from or near costa about § to anal angle ; an irregular variable 

 screak running from this fascia above middle to middle of hind- 

 margin, sometimes interrupted before junction with second fascia; 

 second fascia obtusely angulated inwards near costa, running from 

 costa at § to meet longitudinal median streak before hindmargin ; 



