BY E. MEYRICK B.A. 445 



breadth and completeness of the costal fold, which in those genera 

 is very short and imperfect ; from the North American Platynota 

 in the absence of tufts of raised scales on the forewings ; from 

 the South American Cerorrhineta in the shorter palpi and absence 

 of scaly dilation of the antennae. 



The species are mostly rather small insects, and usually of 

 sombre colouring ; some are very plentiful and of general occur- 

 rence. In superficial features they bear a close analogy to 

 Dichelia. which genus only differs by the absence of the costal 

 fold in male. 



There is only one European species ; two have been described 

 from North America, and I have ten Australian and two New 

 Zealand species, which are hereafter described. These latter 

 may be thus distinguished : 



A. Forewings yellow, with two perpendicular 



blackish fasciso .. .. .. ..12. plathanana. 



B. Forewings pale whitish-ochreous. 



1. Head whitish, ochreous. 



a. Forewings with a dark fuscou^ longi- 



tudinal streak above fold . . . . 4. hemicosmana. 



b. Forewings without a dark fuscous 



longitudinal streak . . . . . . 2. decolor ana. 



2. Head blackish-fuscous 3. vacuana. 



C. Forewings white .. .. .. ..11. scutiferana. 



D. Forewings grey- whitish, irrorated with 



darker. 



1. Markings dark fuscous, black-margined 5. melancrocana. 



2. Markings suffused fuscous-grey .. .. 1. aoristana. 



E. Forewings grey- whitish coarsely [irrorated 



with ochreous-reddish . . . . . . 6. montanana. 



F. Forewings brownish. 



1 . With pale greyish-ochreous space beneath 



costal fold ,.10. obfuscatana. 



