TRIFID&. 97 



Underside of fore wings dull orange-brown except the 

 middle portion, which is broadly clouded with smoky-black 

 between the nervnres ; beyond the middle is a slender curved 

 black-brown transverse line. Hind wings pale orange- 

 ochreons dusted with brown ; central spot small, black- 

 brown ; beyond it is a slender transverse curved brown line 

 followed by a broader, fainter one near the hind margin. 

 Body and legs dull yellow; upper half of the front tibiaa 

 thickly tufted with frosted purple scales. 



On the wing in July and August. 



Larva green ; head rounded, dark green ; dorsal line 

 darker green, enclosed to the twelfth segment between two 

 fine white lines ; from the fourth to the twelfth segment the 

 sides are ornamented with oblique white lines from the 

 dorsal to the spiracular line, which last is dark-green with 

 a whitish edging below ; on the second, third and anal 

 segments are five irregular white lines which unite in front ; 

 spiracles small, white, but the last is larger and more 

 conspicuous ; undersurface and prolegs green, minutely 

 dotted with white ; legs blackish-green. When extended 

 tapering off in front, but these segments extremely retractile. 

 Very similar to that of P. gamma. (Adapted from notes by 

 Mr. W. Warren.) 



August to May, or the beginning of June, upon Eiupatorium 

 cannabinum (Hemp-agrimony), Salvia glutinosa (abroad), and 

 mint. Mr. Warren says that its habit appears to be to eat 

 the young leaves at the top of the plant of Ewpatorium and 

 work downwards. 



Pupa black, except the wing-cases and front surface, 

 which are pale green. This, three or four days before 

 emergence, changes into dull pink. In a thin oval cocoon 

 of silk sufficiently transparent to allow every movement of 

 the larva or pupa to be seen ; placed perpendicularly. (W. 

 Warren.) 



VOL. VI. G 



