49 



Sexuales with sucking bristles; young larvae with 3 jointed antennae 

 (always?); wings at rest horizontal. 



We have in Japan the following 8 genera: 



1. Media of the fore wings branched — 2 



Media of the fore wings simple 4 



2. Front with 2 horn-like projections Cerataplius Licht. 



- Front wanting 2 horn-like projections 3 



3. The 4th and 5th antennal joints subequal, stigma fusiform — 

 Astegopteryx Karsch. 



The 4th antennal joint much longer than the 5th stigma lance- 

 olate - Nipponaphis Perg. 



4. Antennae with annulated or subannulated joints 5 



Antennae with numerous irregularly placed subannulations 

 )ring-like sensoria.). Sclilechtendalial Licht. 



jö. The apical 2 joints of the antennae with annulations 6 



The apical 2 joints of the antennae wanting annulations.. — 

 Nurudea Mats. 



6. The first 2 obliques of the fore-wings branched at the bases •• 

 Fusliia Mats. 



The first 2 obliques of the fore wings not branched at the 

 bases 7 



7. The apical joint of the antennae longest, the 3rd shorter than 



the 4th Nurudeopsis Mats. 



The 3rd joint ef the antennae longest, the apical joint much 

 shorter than the 4th Mansahla Mats. 



1. Gen. Astegopteryx Karsch, 1891. 

 ( Berl. deutsch. Bot, Ges. VII, P. 52 ) 



