1892.] SPECIES OF LEPIDOPTERA HETEROCERA. 289 



Archylus vesta, sp. nov. 



Silvery white ; the costal margin of the primaries indistinctly 

 brown. 



Expanse 18 mm. 



Hab. Novo Friburgo, Brazil. 



Fam. CeratocampiDjE. 

 Syssphinx basirei, sp. nov. 



Primaries above fawn-colour at the base and along the outer 

 margin, the median space darker, and separated from the paler 

 portions by a basal and marginal dark brown line ; almost the entire 

 median spaces from the subcostal to the submedian vein vitreous, 

 here and there flecked with opaque clusters of scales. Secondaries 

 fawn-colour, with a dark marginal line, beyond which the wing is 

 slightly darker than at the base ; the disk of the wings occupied 

 by large vitreous patches as on the primaries. Body fawn-colour, 

 slightly darker on the first two segments of the abdomen dorsally. 



Expanse 104 mm. $ . 



Hab. Rio Janeiro. 



When the male is known, this species will require a new genus. 



Othorene arpi, sp. nov. 



Male. Primaries deep yellow ; the veins, inner and outer margins 

 greyish, also a large triangular space extending along nearly the 

 entire costal margin and defined by a darker line starting from the 

 costal margin at one third from the base, and extending obliquely to 

 the middle of the wing, from which point it returns to the costal 

 margin near the apex ; this greyish space becomes paler towards its 

 extremity and includes a large yellow discal spot ; a white spot at 

 the base of the wings. Secondaries reddish. Body deep yellow ; 

 a grey and white spot on the first segment of the abdomen. 



Expanse 70 mm. 



Hab. Rio Janeiro, Brazil. 



Othorene janeira, sp. nov. 



Male. Primaries deep yellow, tinged with purplish along the 

 costal margin ; fringe and veins dark grey ; a dark grey line from 

 the apex to the inner margin near the base, before reaching which 

 it is formed by a basal grey line ; at the base of the wings a large 

 white spot. Secondaries deep yellow, red along the inner margin, 

 and with a narrow dark transverse band. Body orange j reddish 

 dorsally ; a large white spot on the first segment. 



Expanse 85 mm. 



Hab. Rio Janeiro, Brazil. 



Adelocephala invalida, sp. nov. 



Primaries above dark brown, tinged with purple ; paler along the 

 outer margin ; a dark line, outwardly shaded with a slightly paler 

 tint, from the apex to the middle of the inner margin ; discal point 



