0AKADK1NINA [polia 



3. Forowinga whitish-green . . .13. aprilina. 



„ not whitish-green . . .4. 



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



„ without blackish basal dash . . 10. 



5. Basal dash furcate . . .8. ornithqpus. 



,, „ not furcate . . . .6. 



6. Antennae in 3 pectinated . .10. viminalis. 



,, „ not pectinated . . .7. 



7. ForewingB with black central subincdian dash . 8. 



„ without such dash . . .9 



8. Claviform defined . . .7. furcifira. 



,, obsolete . . . G. lambda. 



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



„ „ „ separate . . 5. socia. 



10. Antennae in 3 bipectinated . .11. lichenea. 



,, „ not bipectinated . . .11. 



11. Claviform confluent with orbicular . 12. protea. 



,, separate or absent . . . 12. 



12. Subtcrminal line edged with yellowish spots . 13. 



„ „ not yellowish-edged . . 14. 



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



„ without darker shades 16. xanihomista. 



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



„ „ not black-marked . . . 15. 



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



,, ,, „ 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 ochrcous- whitish above, 

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

 reniform followed by a blackish suffusion ; subtcrminal 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 

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

 (in 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, Silent, Ononis, etc. ; 5-7. 



2. P. vetusta, Jib. 50-57 mm. Differs from /'. exoleta as 

 follows: forewings whitish-ochreous, towards custa more 



