Lepidopteru of the Amazons. 27 



solve the difficulty, as in this respect there is no moi-e 

 than a generic cliiFerence between Notodonta and Cncullia, 

 and not that between Cucullia and Nystulea. In Cucullia 

 the antennae are simple in both sexes but thickening 

 gradually towards the base ; in Ni/stalea they are of the 

 same form, but are pectinated from the base to about the 

 middle, Avhere the pectinations fade away imperceptibly ; 

 in Notodonta they are much more strongly pectinated 

 nearly to the apex. With regard to the pupa the Cucnllia 

 type seems to be more Bombycidian than that of A^oto- 

 donta ; this is also the case Avith Calo/)hasia : all of these 

 genera have the discoidal cell of pi'imaries below clothed 

 with long hair scales. The long bodies, with their terminal 

 tufts and hood-like collars, and the Avings with their streaky 

 markings in various shades of brown forcibly recall to 

 one's mind such Notodontid genera as Etobesa, Destohnia, 

 Danima and even Flieosia. Is Cucullia a Xoctuid genus? 

 and if so — whv ? 



Family H^EMEROSIID.E. 

 Aphusia, Walker. 



19. Aphusia marmorea, n. sp. 



Basal half Avhite, external half stramineous, irrorated 

 with ferruginous ; a blackish band beginning at centre of 

 inner margin, abruptly enlarged to double its width just 

 below the third median branch and then narrowing toAvards 

 the costa ; an arched ferruginous band luiiting Avith the 

 centre of the blackish band, Avhence it runs, slightly 

 obliquely, almost to the outer margin, interrupted just 

 beloAv the last subcostal branch by a longitudinal Avhite 

 streak and then running iuAvards to the costal margin ; 

 base blackish ; a ferruginous spot near the base of inner 

 margin ; secondaries sericeous broAvn, darkest at apex ; 

 apical half of fringe black, interrupted by sih-er-grey dots 

 at the ends of the veins, anal half silver-grey ; head and 

 thorax stramineous, speckled Avith ferruginous ; abdomen 

 broAvn ; undersurface sericeous leaden-grey ; palpi and 

 costal margin of primaries yellowish ; inner border of 

 primaries Avhite : expanse of wings 11^ lines. 



Rio Jutahi, 31st January, liS75. 



Allied to ^^AgropJiila''^ rudisana and A. transmuttita, 

 Avhich (Avitli the other New ^^^orld species referred to 

 Ayrophila by Mr. Walker) may be transferred to Apliusia. 



