OF NEW SOUTH WALKS. 211 



nlaty* whitish, immediately before each of which they are suffused 

 with blackish. Hind wings pale clear ochreous -yellow, on upper 

 margin towards apex suffused with dark fuscous ; hindmarginal 

 ine dark fuscous ; cilia pale ochreous-yellow, with a dark fuscous 

 parting-line near base, and towards apex becoming suffused with 

 smoky fuscous. 



A very conspicuous insect. The singular orifices and valve- 

 like arrangements at base of abdomen I conjecture to be auditory 

 organs, from the analogy of other insects. Several specimens 

 bred from larvae feeding rather gregariously in silken nests on 

 Exocarpws cupressi/ormis, near Parramatta in April; imagos 

 emerged from June to September. 



MYELOIS Z. 



Forehead smooth, Antennas filiform, simple, in <$ finely 

 ciliated. Ocelli distinct. Labial palpi pointed, erectly ascending, 

 terminal joint short. Maxillary palpi short or obsolete. Fore- 

 wings of variable breadth, costa straight or slightly curved ; hind 

 wings rather broad. Fore wings with 11 veins ; 4 and 5 stalked 

 or separate. Hindwings with 8 veins ; 3 and 4 rising stalked 

 from posterior angle of cell. 



A large and rather heterogeneous group, occurring throughout 

 the world. 



A. Forewings with a broad curved white subcostal band... I. subarcuetta. 



B. ,, , no white subcostal band ... ... 2. cosmiella. 



subarcudla n. sp. 

 6|" 7". Head dark grey mixed with blackish. Palpi short, 

 arched, blackish mixed with whitish-grey scales. Antennae 

 whitish, with dark fuscous rings. Thorax dark purple grey. 

 Abdomen fuscous-grey, segmental margins and sides pale 

 ochreous ; anal tuft ochreous. Anterior legs purple-fuscous, 

 irrorated with whitish, tarsi and apex of tibiae blackish, tarsal 

 joints with whitish apical rings ; middle and posterior legs above 

 purple-fuscous, irrorated with whitish, beneath ochreous- white, 

 tarsi black with slender whitish rings at apex of joints. Fore. 

 wings short, somewhat dilated, costa nearly straight, hind margin 

 rather oblique, rounded ; dark purple-fuscous, somewhat irrorated 



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