634 MR. J. H. LEECH ON THE [DeC. 18, 



in no case is the aberration sufficient to justify separation of the 

 specimen or specimens exhibiting it from A. pernyi. There are ex- 

 amples sliowing the particular characters claimed for the several 

 named forms well defined ^ and also others which do not agree exactly 

 with these named forms or with the type, although they serve 

 admirably to link together the various forms, and to connect one 

 or other of such forms with the type. These prove most clearly the 

 specific identity of all. 



Yokohama {Jonas, Pryer, and Manley) ; Tokio (Fenton) ; Kiu- 

 kiang [Pratt) ; Amur. 



25.5. AtTACUS CYNTHIA. 



PhalcBna {Attacus) cynthia, Drury, ii. p. 91 ; Cram. Pap. Exot. 

 i. p. 62, pi. 39. fig. A. 



Attacus pryeri, Butl. Proc. Zool. Soc. 1878, p. 397 ; 111. Typ. 

 Lep. Het. pt. iii. p. 11, pi. xliii. fig. 4 (1879). 



Attacus vesta, Walk. Cat. Lep. Het. Suppl. ii. p. 525 (nom.cat.). 



Attacus walkeri, Feld. Wien. cut. Mon. vi. p. 34. 



A beautiful series, coll. Pryer. 



The only difference between the representatives of this species 

 from Japan {A. pryeri) and those from Kiukiang {A. walkeri) lies 

 in the tint of ground-colour ; this in the former is brownish olive, 

 but in the latter greenish olive, or, in other words, there is more 

 brown in the composition of the colour of ^. pryeri than in that of 

 A. cynthia or A. walkeri. There is, however, one specimen among 

 Pryer's series which is not so brown as the other examples from 

 Japan, and less green than Kiukiang specimens. 



Yokohama {Jonas and Pryer) ; Kiukiang {Pratt) ; N. China, 

 Ningpo. 



256. ACTIAS SELENE. 



Tropcea selene, Hiibn. Verz. Schmett. p. 152. 1588. 

 Actias selene, Macleay ; Leech, Zool. Misc. ii. pi. 70. 

 Actias ningpoana, Feld. 



Saturnia artemis, Brem. Etud. Entom. Motsch. 1852, p. 64 ; Bull. 

 Acad. Petersb. 1861, torn. iii. ; Lep. Ost-Sib. tab. ii. figs. 6 S, 



7 2. 



TropcBa gnoma, Butl. Ann, & Mag. Nat. Hist. (4) xx. p. 480 

 (1877) ; 111. Typ. Lep. Het. pt. ii. p. 17, pi. xxv. fig. 1 (1878). 



Tropcea aliena, Butl. Ann. & Mag. Nat. Hist. (5) iv. p. 355 

 (1879). 



Tropcea dulcina, Butl. Trans. Ent. Soc. 1881, p. 14. 



In size and in tint of coloration this is a most variable species. 

 Among the Japanese specimens in my collection (19 in number) 

 there are green, whitish-green, yellowish-green, and bluish-green 

 examples, ranging from 108 to 150 millim. in expanse. The costal 



^ As in other instances where slight aberrant forms have been elevated to 

 specific rank. 



