NOVITATES ZOOLOGICAE XXIV. 1917. 233 



8. Nystalea cossoides spec. nov. 



(J. Nearest to griz^nani Schaus. 



Antennae black-brown ; head and tegulae deep chestnut ; thorax silvery 

 grey and deep chestnut mixed with a pale chestnut tuft on hind edge ; abdomen 

 dark wood-brown, last segment and anal tuft cinnamon. 



Forewing clouded mouse-grey, the central three-fifths suffused with brown, 

 a basal chestnut patch on upper half of wing ; a convex curved double trans- 

 verse line, inwardly dull chestnut, outwardly black, a similar double sinuous 

 postmedian line, but with the inner part black and outer chestnut ; in between 

 these two transverse bands are a number of short and irregular black hair-lines 

 and rings, and some grey patches in the browner ground-colour ; some black 



subapical hair-streaks and a black crenulated terminal line. Hindwing : basal 



two-thirds greyish, somewhat thinly scaled and hyaline, outer one-third sooty 

 black-brown, fringe white. 



Length of forewing : 23 mm. Expanse : 52 mm. 



Habitat. Santo Domingo, Carabaya, South-east Peru, 6,000 ft. (G. Ockenden), 



1 cJ. 



9. Nystalea zeuzeroides spec nov. 



cj. Nearest to discalis Schaus. 



Antennae dark brown ; palpi buii" at the upturned third joint, rest streaked 

 grey and chestnut ; head, antennal tuft, and tegulae deep bright chestnut ; 

 basal half of patagia roan-grey, rest of patagia and thorax bright maroon-brown ; 

 abdomen brown witli mauve tinge. 



Forewing silvery mouse-grey variegated with a large number of sinuate 

 and zigzag transverse lines of different widths of bright brown, wood-brown 

 or whitish ; at end of cell is a stigma of dark grey surrounded by a brown line, 



a postdiscal dark brown streak on subcostal. Hindwings dark brown, basal 



two-thirds variegated with some huffish clouding. 



Length of forewing : 29 mm. Expanse : 66 mm. 



Habitat : Fonte Boa, Upper Amazons, May 1906 (S. M. Klages), cJcJ. 



10. Nystalea ocellata spec. nov. 



(J ?. Antennae brown serrated with pale rusty teeth ; head yellowish cinna- 

 mon rufous ; antennal tufts short, some colour ; tegulae and base of patagia 

 cinnamon rufous, some of the hau's tipped with violaceous grey ; rest of patagia 

 and thorax violaceous brown tipped with grey and mauve ; abdomen wood 

 grey-brown, a chestnut tuft on first segment. 



Forewing liver-brown with a series of streaks on costa, some chestnut, 

 others brown, buff, or mauve, and some darker and paler transverse crenulate 

 shadow-lines on basal half of wing ; a median basal black spot and a similar 

 larger one on vein 1 ; beyond the cell is a broad band from costa to median 

 vein, the inner half of this band is half rufous, half black, the outer half rufous 

 with two marginal sUvery-mauve lines and between these lines powdered with 

 silvery mauve ; this band is followed by three or four crenulate angled dark 

 lines variegated with streaks and freckles of silvery mauve and blue ; a subapical 

 velvety black spot surrounded by a buff and speckled area giving somewhat the 

 effect of an ocellus ; a submarginal row of slate-blue somewhat ocellated dots. 



