72 REVISION OF AUSTRALIAN LEPIDOPTERA, 



vertex; second joint with a dense projecting anterior tuft at apex; 

 terminal joint moderate in (J, ratlier long in 9, smooth-scaled. 

 Antenm« simple, in g ciliated. Thorax with a slight posterior 

 crest. Abdomen with a small dorsal crest on first segment. 

 Anterior tibiae with a groove beneath completely overlapped by a 

 posterior tuft of scales; posterior tibite with two pairs of large 

 scales. Forewings with vein 2 from |, 3 from well before angle, 

 6 from near end of areole, which is small, 7 from 8 + 9 well 

 beyond areole, 10 from 8 + 9 beyond 7. Hindwings with 3 and 

 4 connate, 6 and 7 stalked, 8 closely approximated to beyond 

 middle of cell. 



Type, 0. glauca, Wlk. 



Our knowledge of structure has advanced somewhat since 

 Walker described this genus among the Noct.uidcE^ with the 

 remark that it had some reseml^lance to the GaUeridct^. 



28. OSICA GLAUCA. 



[ykavKos, greenish.] 

 Osica glauca, Wlk., Brit. Mus. Cat. xxxiii. 767. 



(J9. 46-60 mm. Head and antennae pale brownish. Palpi 

 fuscous-brown, terminal joint pale brownish. Thorax brown- 

 whitish, in O greenish-grey mixed with brown ; collar brown. 

 Abdomen grey. Legs brownish; anterior tarsi dark fuscous, ends 

 of joints narrowly white. Forewings elongate, costa moderately 

 arched, apex rectangular, termen slightly rounded, slightly 

 oblique ; brownish suffused with brown-whitish or grey; with 

 numerous darker brown indistinct transverse lines, mostly 

 represented b}^ dots on veins; a large pale squarish discal spot 

 margined anteriorly and posteriorly by dark brown; shortly beyond 

 this is a fine sigmoid dentate line from } costa to mid-dorsum; a 

 subterminal series of dark brown dots; a fine interrupted dark 

 fuscous terminal line; cilia brown-whitish mixed with dark brown. 

 Hindwings about twice breadth of forewings, termen rounded; 

 dark grey; cilia grey. 



Type in British Museum. 



Q. Brisbane, in August. 



