1058 DESCRIPTIONS OF AUSTRALIAN MICRO-LKPIDOPTERA, 



58. OCYSTOLA, U. g. 



Head smooth, side-tufts moderate, loose. Antennae in ^ with 

 long ciliations (2i-8) basal joint with strong pecten. Palpi rather 

 short, second joint not reaching or rarely slightly exceeding \)ase 

 of antennae, with appressed scales, somewhat loose beneath towards 

 apex, terminal joint shorter or much shorter than second, 

 moderately slender, oblique or curved. Thorax smooth. Fore- 

 wings elongate, hindmai-gin very oblique. Hind wings narrower 

 than foT-evvings, from elongate-ovate to narrow-lanceolate, cilia 

 1 to 3. Abdomen moderate. Po.sterior tibiae clothed with 

 moderate or very long hairs above. Forewings with vein 7 to 

 hind mai'gin, 2 from before angle of cell. Hindwiugs with veins 

 3 and 4 sometimes more or less remote at origin, sometimes from 

 a point, rarely stalked. 



Although showing considerable variation in some characters of 

 structure, this genus is undoubtedly natural, and easily recognised 

 by the short palpi and long antennal ciliations, the former 

 character sej^arating it from Peltophora, and the latter from 

 Ooesyra, of which it appears to be a development. The hindwings 

 are sometimes hyaline, and vary much in form, but the differences 

 are of specific value only. The variation in the origin of veins 3 

 and 4 of the hindwings is in general here unreliable, though 

 occasionally of specific value ; usually individuals and sexes of the 

 same species difier in this respect, the ^ tending to have these veins 

 more remote than in the ^. The relative length of the joints of 

 the palpi also differ with tlie species. 



This genus was accidentally omitted from the analytical 

 tabulation ; it should be placed under the same head with 

 Peltophora, and distinguished from it by the second joint of the 

 palpi (usually) not reaching base of antennre, in conjunction with 

 the usually lanceolate hindwings. 



Larvae 16-legged, of various habits, feeding in portable cases ov 

 between joined leaves ; those known are all attached to species of 

 Eucalyptus. 



The senus is not known outside Australia. 



