226 NOTODONTINA [xanthorhoe 



3. Discal spot forniing two separate dots . 5. hipunctaria. 



„ ,, not forming two dots . . .4. 



4. Anterior edge of median band twice angulated 



2. cervmata. 

 „ ,, ,, ,, not twice angulated 5. 



5. Anterior edge of median band angulated in middle 



13. firmata. 

 „ „ „ „ not angulated in 



middle . . 6. 



6. Anterior edge of median band angulated or strongly 



curved near costa 7. 

 „ ,, ,, ,, evenly curved or 



straight . . 8. 



7. Posterior edge of median band straight . 1. vittata. 



„ „ „ „ not straight 



12. quadrifasciaria. 



8. Ground-colour of forewings grey . . 4. plumharia. 



,, ,, ,, ochreous or w'hitish . 9. 



9. Basal patch mixed with red . . .10. 



,, ,, not mixed with red . . .14. 



10. Ground-colour of forewings white . 14. montanata. 



„ ,, ,, pale ochreous . 11. 



11. Subterminal line preceded by a double dark spot 12. 



,, ,, not preceded by a double dark 



spot . . . .13. 



12. Median band pui'ple, subterminal line distinct 



8. spadicearia. 

 ,, „ usually blackish, subterminal line 



obsolete . . .9. ferrugata. 



13. Forewings with a dark apical streak . 11. nmnitata. 



,, without dark apical streak . 10. designata. 



14. Median band darkest on upper half . 15. Jiuctuata. 



,, „ not darker on upper half . . 15. 



15. Ground-colour of forewings ochreous or brownish 16. 



„ ,, ,, whitish -ochreous or 



whitish . .17. 



16. Subterminal line preceded by two dark spots 



7. didymata. 

 „ ,, not preceded by two dark spots 



3. limitata. 



17. Hindwings with distinct grey striae . 16. salicata. 



,, without grey striae . 6. midtistrigaria. 



1. X. vittata, Bkk. {lignata, Hb.) 22-25 nmi. Antennal 



