SCYTUEIDiE. 13 



whitish scales, especially posteriorly ; a cloudy white median streak 

 from base to near termeii, and a slenderer one close beneath it to 

 beyond middle ; an undehned subdorsal streak of obscure whitish 

 irroration from base to tornus : cilia grey, mixed with white 

 towards base. Hind wings |, 4 and 5 separate ; dark grey, thinly 

 scaled anteriorly ; cilia grey. 



Peuu, Oroya, 12,200 leet, in July (Paris?i) •, twelve specimens. 



/ 



Scythris medullata, n. sp. 



J $ . 11-12 mm. Head, palpi, and thorax dark violet-hronzy- 

 grey, somewhat touched with whitish. Antennal ciliations of d |. 

 Abdomen dark grey, sufl'used with ochreous-white beneath in both 

 sexes. Forewings lanceolate ; dark vioiet-bronzy-grej, either 

 irregularly sprinkled with whitish except towards base, or with 

 two closely adjacent whitish longitudinal streaks from base, upper 

 median, reaching to about |, lower reaching to beyond middle, and 

 with every transitional variation between these two forms, the 

 streaks and irroration varying in development but always one or the 

 other present ; plical and second discal stigmata more or less per- 

 ceptible as obscure spots of dark fuscous suffusion, and sometimes 

 one or two other similar spots in disc : cilia luscous, variably mixed 

 with whitish towards base. Hindwings |, 4 and 5 separate; dark 

 fuscous, thinly scaled anteriorly ; cilia dark grey. 



Colombia, Call (500 feet), Caldas (4400 feet), La Crumbre 

 (6G00 feet), in May ; Ecuador, Huigra, 4500 feet, in June ; Peku, 

 Lima (500 feet), Chosica (2800 feet), in July and August (Parish) ; 

 eighty specimens. The variability of this species is very puzzling, 

 and the variations are to some extent localised, the examples from 

 one localit)- beijig mostly (but not entirely) of similar type ; the 

 large amount of material available, however, enables me to affirm 

 that every transition occurs, and it is impossible to draw any lino 

 between the different forms, which all agree in structure. 



/ 



Scythris immunis, n. sp. 



J 5. 9 mm. Head, palpi, and thorax dark grey sprinkled 

 with whitish. Antennal ciliations of J ^. Abdomen stout in 

 both sexes, bronzy-grey, beneath sutfusedly mixed Avith whitish. 

 Forewings lanceolate; dark grey ; two blackish longitudinal streaks 

 from base, upper median, reaching to about |, lower running to 

 tornus, some slight whitish irroration on or between these ; a 

 similar less distinct streak above dorsum from base to middle : cilia 

 grey. Hindwings with 4 and 5 separate ; in d pale grey, thinly 

 scaled, in § grey ; cilia greyish, towards base ochreous-tinged. 



I'eku, Oroya, 12,200 feet, in July (Parish); three specimens. 



^ Scythris inanima, n, sp. 



J. 10mm. Head, palpi, thorax, and abdomen light bronzy- 

 grey. Antennal ciliations 1. Forewings lanceolate ; bronzy-grey. 



