20 Miss A. E. Prout on some 



the 8tli moderate, the 9th moderate and interrupted by a 

 minute white spot, the 2nd, 4th, 6th, 8th, and outer section 

 of 9th forming the origin of the five lines, which are brown, 

 irregularly waved, and dentate, more or less upright, obso- 

 lescent in parts, the medial and subterminal being most 

 distinct, the former only a little sinuous, the latter strongly 

 waved and dentate, with sharp distal angles behind SC° and 

 R^ and proximal ones on U^ and M^ ; faint traces of one or 

 two other sinuous lines and of an upright lunular reniform ; 

 a row of black spots between the veins close to termen ; a 

 dark terminal line ; fringe (worn) mixed grey-brown and 

 whitish. 



Hind wing with glossy brown hair from base to near 

 termen on costal and abdominal areas in fold ; marked 

 much as in S. mollis (with minute white cell-spot, waved 

 medial, postmedial, and subterminal lines, black spots be- 

 tween the veins near termen, black terminal line, and slight 

 clouding between the lines) ; but the subterminal is a little 

 blacker and further removed from termen and the black 

 marginal spots are more detached in hyalina than in mollis. 



Underside of both wings clothed with silky androconia, 

 with indistinct diffused antemedial and medial lines and 

 shadowy traces of the postmedial ; costa of fore wing with 

 5 or 6 whitish spots on apical half, 3 fairly large. 



S.E. Peru : Santo Domingo, 6000 ft., xi. 1904 (G. Ocken- 



don) ,\S- 



Easily distinguished from S. mollis by the larger size 

 (30 mm. in hijalhia, 42-46 mm. in mollis), the slightly more 

 hyaline texture of wings, and the darker, broader black 

 markings on fore wing, especially at costa, near base, and 

 on posterior part of medial line ; by the more upright reni- 

 form and more waved subterminal line, as well as by the 

 points already mentioned on the hind wing. 



18. Zale plumbimargo, sp. n. (PI. III. fig. 6). 



$ . — 60 mm. 



Head, palpus, antenna, pectus, and legs ochreous-brown ; 

 tegulse ochreous-brown at base, with a dark brown line and 

 tipped with blackish. Thorax above, crests and patagia 

 blackish peppered with white and with some long brown 

 hairs. Abdomen ochreous-brown above and beneath, the 

 double crest on 1st basal segment rich chocolate-brown. 



Fore wing pale ochreous, with the costal area, from base 

 at inner margin gradually narrowing to apex, rich chocolate- 

 brown, shading gradually into the ground-colour; subbasal 



