678 Mr. A. G. Butler * a further notes on the 



BELLUKA, Walker. 



ARZAMA, Walk. 

 1. Bellura gortynoides. 



? , Bellura gortynoides, Walker, Lep. Het., Suppl., ii., 



p. 465 (1865). 



$ , Arzama densa, Walker, 1. c., p. 645 (1865). 

 ? , A. vulnifica, Grote (see Check List, p. 29, n. 584). 

 United States (Georgia). Coll. B. M. 



2. Bellura obliqua. 



Edema? obliqua, Walker, Lep. Het., Suppl., 2, p. 428 



(1865). 



Sphida obiiquata, Grote (see Cbeck List, p. 29, n. 582). 

 Canada ; New York. Coll. B. M. 

 I fail to see a sufficient reason for distinguishing this 

 species, generically, from the preceding. 



GORTYNA, Ochs. 



Judging from the perfect insects only, this genus 

 seems chiefly to difl'er from Celana in the greater 

 tendency of the species to become greasy, although 

 many of the forms have a very distinct aspect, and are 

 barely, if at all, separable from Xanthia ; others, again 

 (G. illoba, necopina, micacea, stramentosa, petasitis, 

 and nitela), are extremely like C. leucostigma and allies. 

 It is difficult to know what to do with groups of this 

 kind, based, perhaps correctly, upon the mere clothing 

 of the thorax, or some such apparently trivial character ; 

 they appear to be natural genera, and, therefore, I leave 

 them as I find them. 



1. Gortyna illoba. 



Agrotis illoba, Butler, Ann. & Mag. Nat. Hist., ser. 5, 



vol. i., p. 162 (1878). 



Graphiphora pacifica, Butler, I.e., p. 165 (1878). 

 Japan. Coll. B. M. 



The type of A. illoba is a very pale example from 

 Hakodate. 



