12 noctuidj;, 



b w . Fore wing with the terraen evenly 



curved Cropia, p. 2G0. 



b 9 . Palpi with the 3rd joint very long, 

 not dilated, in male tufted with 

 long hair on inner side and re- 

 curved over head Corythubus, p. 360. 



c 9 . Palpi with the 3rd joint shorter 

 and not dilated. 

 a 10 , fore wing with the cilia strongly 



dentate towards tornus Peuigeodes, p. 287. 



&io. Fore wing with the cilia slightly 

 crenulate. 

 a 11 . Palpi with the 2ud joint reach- 

 ing vertex of head. 

 a 1 '. Abdomen with very large 

 crests on 3rd and 4th seg- 

 ments; build slender Oiiytonix, p. 600. 



J 12 . Abdomen with the crests on 

 medial segments equal ; build 

 stout. 

 a 13 . Thorax and fore wing roughly 



scaled Heteeociiboma, p. 271, 



b VJ . Thorax and fore wing smoothly 



scaled Perigba, p. 292. 



b u . Palpi with the 2nd joint reach- 

 ing about middle of frons. 

 a 12 . Abdomen with large crest on 



3rd segment ; build stout ... Euplexia, p. 219. 

 I:A-. Abdomen with large crest on 



4th segment ; build slender... Microplexia, p. 354. 

 c 12 . Abdomen with the crests on 

 medial segments equal. 

 «'3. Fore wing with the apex 

 rectangular and somewhat 



acute Gortyna, (3)p. 20. 



b is . Fore wing with the apex 



rounded Oligia, p. 361. 



b*. Thorax clothed with hair and hair-like 



scales. 



a". Prothorax with the crest long, meso- 



tho'-ax with small paired crests ; 



abdomen with very large double 



crest at base Acroriodes, (2)p. 279. 



b 7 . Abdomen without large double crest 

 at base. 

 o 8 . Tegulas produced to a slight dorsal 



ridge Apamea, (3) p. 25. 



b 8 . Tegulse not produced to a dorsal 

 ridge. 



<7 9 . Thorax quadrately scaled Litiiomoea, (2) p. 208. 



b 9 . Thorax not quadrately scaled. 

 «io. Thorax clothed with long rough 



hair and hair-like scales DaseoCii.eta, (2) p. 22. 



iio. Thorax smoothly clothed with 



hair and hair-like scales Eremobia, p. 409. 



c R . Thorax clothed with hair only TrichoplexiA, p. 482. 



{», Prothorax without distinct crest. 

 a 6 . Thorax clothed chiefly with scales. 

 a'. Palpi with the 2nd joint reaching 

 vertex of head, the 3rd long. 

 a*. Palpi with the 3rd joint porrect ... Pseuderastria, p. 614. 

 IP. Palpi with the 3rd joint upturned... Bryopiiila, p. 618. 

 b~. Palpi with the 2nd joint reaching 

 about middle of frons, the 3rd short. 



