60 



round black spots below these, whole surface, except spots, 

 broadly reticulated with pale carmine ; fourth segment with a 

 large double-triangular spot on back, third with a much larger 

 one, each with four or five irregular spots on sides ; second seg- 

 ment deep amber, each side with narrow black transverse stripe ; 

 head rugose, black ; anal segment pale yellowish, sliining. Feeds 

 on Banksia serrata and other species of the genus, and on 

 Lamhertia formosa, residing in a barricaded tunnel in the 

 branches, and carrying in leaves for food, in August and Sep- 

 tember. 



56. XyJ. orectis, n. sp. 



Male 34 mm. Head and thorax ochreous-white, crown more 

 ochreous-tinged. Palpi, antennae, and abdomen white. Legs 

 light ochreous, posterior pair white. Forewings elongate, costa 

 slightly arched, apex obtuse, hindmargin slightly rounded, rather 

 strongly oblique ; snow-white ; extreme costal edge ochreous- 

 tinged : cilia white. Hind wings pale grey, becoming white to- 

 wards base ; apex and upper part of hindmargin irregularly 

 white ; cilia white. 



Perth, West Australia ; in November, one specimen. 



57. Xyl. cosmopis, n. sp. 



Both sexes 22-24 mm. Head white, sides of face orange. Palpi 

 white, second joint more or less orange-tinged. Antenna? whitish- 

 Thorax silvery-white. Abdomen white, anal tuft ochreous- 

 tinged. Legs ochreous-whitish, anterior and middle tibiae more 

 or less suffused with light orange. Forewings elongate, moderate, 

 costa slightly arched, apex obtuse, hindmargin gently rounded, 

 oblique ; shining snow-white ; costa slenderly ochreous-tinged, 

 costal edge very slenderly blackish on basal fourth : cilia white. 

 Hindwings grey-whitish, apex somewhat greyer ; cilia svhite. 



Geraldton, Perth, and Albany, West Australia ; in November, 

 four specimens. 



58. Xyl. argent el la, Walk. 



(Cryptolechia arc/enfeUa, Walk,, 750.) 



Both sexes 18-30 mm. Head pale yellowish-ochreous, sides of 

 face light fuscous. Palpi white, second joint fuscous except on 

 lower half beneath. Antenna? whitish. Thorax white, becoming 

 whitish-ochreous anteriorly. Abdomen white, anal tuft ochreous- 

 tinged. Legs dark fuscous, apex of joints whitish, posterior pair 

 whitish-ochreous. Forewings elongate, moderate, costa gently 

 arched, apex round-pointed, hindmargin straight, oblique; 

 shining white, faintly ochreous-tinged, more distinctly on costal 

 edge ; costal edge very slenderly black on basal fourth : ciKa 

 ochreous-white. Hindwings light grey, becoming ochreous- 

 whitish towards inner margin : cilia ochreous-whitish. • 



