50 OARADEININA [POLIA 



3. Fore wings whitish-greek) . . .13. aprilina. 



,, not whitish- green . . .4. 



4. Forewings with blackish median dasli from base . 5. 



without blackish basal dash . . 10. 



5. Basal dash furcate . . .8. ornithopus. 



not furcate . . . .6. 



6. Antennae in $ pectinated . . 10. viminalis. 



not pectinated . . .7. 



7. Forewings with black central subinedian dash . 8. 



without such dash . . .9 



8. Claviform defined . . .7. furcifera. 



obsolete . . .6. lambda. 



9. Orbicular and reniform connected by claviform 9. areola. 



separate . . 5. soda. 



10. Antennae in ^ bipectinated . . 11. lichenea. 



not bipectinated . . .11. 



11. Claviform confluent with orbicular . 12. protea. 



separate or absent . . .12. 



12. Subterminal line edged with yellowish spots . 13. 



not yellowish-edged . . 14. 



13. Hindwings with two darker shades . 15. flavicincta. 



,, without darker shades 16. ocanthomista. 



14. Second line black- marked opposite claviform 14. chi. 



not black-marked . . .15. 



15. Forewings with dorsal half red -brown . 4. semihrunnea. 



,, not red-brown 3. solidaginis. 



1. P. exoleta, L. 54-60 mm. Thorax ashy-blackish, sides 

 whitish, collar brownish. Forewings whitish -ochreous, rosy- 

 tinged, much suffused and streaked with light fuscous ; orbi- 

 cular transverse, fuscous, reniform ochreous -whitish above, 

 blackish beneath, both edged with a pale dark-margined rim, 

 reniform followed by a blackish suffusion ; subterminal line 

 obscurely pale, twice sharply dentate below middle, preceded in 

 middle by a short black dash. Hindwings fuscous, suffused 

 with pale rosy-ochreous basally. 



Britain to the Orkneys, Ireland, common ; Europe, N. and 

 WC. Asia ; 9-4. Larva green ; lateral line yellow, surmounted 

 on each segment by a pair of connected white black -circled 

 dots ; spiracular red, sometimes interrupted, white-edged be- 

 neath, marked with triplets of white black-circled dots : on 

 Carduus, Silene, Ononis, etc. ; 5-7. 



2. P. vetusta, Hb. 50-57 mm. Differs from P. exoleta as 

 follows : forewings whitish - ochreous, towards costa more 



