TRIFID^E, 107 



Normandy. Elsewhere its ordinary range seems to have 

 been through the South of France, Spain, Germany, Switzer- 

 land, Northern Italy, Hungary, Poland, Finland, Paissia, 

 Siberia, and the mountain districts of Central Asia. 



4. P. illustris, Fab. — Expanse 1£ to If inch. Fore 

 wings moderately broad, pointed, alternately banded with 

 dull olive-green and purplish-pink in rather narrow stripes ; 

 orbicular stigma elongated and edged with white. Hind 

 wings pale smoky-brown. 



Antennas of the male thick, simple, almost naked, whitish- 

 brown ; palpi curved upwards and of moderate length, not 

 attaining the top of the head, moderately tufted, pale fulvous; 

 eyes reddish-black ; lashes long, dusky, and curled over ; 

 head tufted, yellow drab ; collar pale yellow, shaded above 

 with pale brown and edged with white ; remainder of thorax 

 pale olive-brown with a rather large back crest ; abdomen 

 yellow-brown, covered toward the base with long whitish 

 hair-scales ; on the dorsal ridge are two dense erect yellow- 

 brown crests tipped with chestnut ; lateral and anal tufts 

 thick and spreading, pale yellow-brown. Fore wings pointed, 

 not broad ; costa very nearly straight ; apex angulated ; hind 

 margin regularly and gently curved ; dorsal margin hollowed 

 and then a little rounded ; colour purplish-pink obliquely 

 striped with olive-green or olive-brown shadings ; basal line 

 hardly suggested; first line very oblique, leaning outwards 

 from near the base of the dorsal margin and duplicated, 

 pinkish-white, edged outside to the middle with black ; 

 second line conspicuous, very oblique and gracefully curved, 

 double, purplish-pink, divided and edged inwardly with deep 

 olive-brown, outwardly shaded off with pink ; subterminal 

 line conspicuous, silvery-white, edged inside on the dorsal 

 margin by a triangular golden-fulvous cloud, outside by 

 smaller clouds of the same colour at the middle and apex ; 

 principal nervures white from the base to the middle ; over 

 the median are two slender perpendicular white streaks 



