38 MR. A. R. WALLACE ON THE PAPILIONIDiE 



Guinea district that I visited ; nor was it seen during the exploration, a few years ago, by 

 a Dutch steamer which visited the part of the coast where the only specimen knoAvn was 

 said to have been obtained. 



5. Orxithoptera Urvilliana, Gu^riri. 



Papilio Urvilliana, Guer. Voy. de laCoquille, Lep. t. 13. f. 1,2, (J. 

 O. Urvilliana, Boisd. Sp. Gen. Lep. p. 175. 

 Had. New Ireland [Paris Museum). 



b. Pompeiis group. 



6. ORNiTnoPTERA Remus, Cramer. 



Papilio Remus, Cr. Pap. Ex. t. 135. f. A, t. 136. f. A ( $ ), t. 386. f. A, B ( d ) ; Fab. Syst. Ent. iii. 1. p. 11- 

 0. Remus, Bd. Sp. Gen. Lep. p. 176. Papilio Panthous 6, Clerck, Icon. t. 18 (S). 

 Hub. Amboyna, Ceram, Gilolo, Morty Island, Sulla Island, Celebes [Wall.). 



The specimens above quoted agree well with Cramer's figures. ' The female from the 

 Sulla Islands differs only in having more yellow towards the anal angle of the lower wings. 

 The specimens figured by Cramer in pis. 10, 11, under the name of " HyjyoUtus " seem 

 to be a remarkable variety, in which the female has much of the character of the male, 

 Messrs. Doubleday and G. R. Gray have adopted Panthous as the specific name of this 

 insect ; but this name was first used by Linnaeus for the female of JPrimmts only, in the 

 10th ed. of tlie ' Systema Natura? ' (1758). Clerck (in 1759) adopted the name, but sup- 

 posed he had found the male in the female of Renms. lannseus, in Mus. Lud. UMc. (1764), 

 and ia the 12th ed. of the 'Systema Natura? ' (1766), adopts this error, so far as re- 

 ferring to Clcrck's two figures ; but in both these works his description refers only to the 

 female of P. Priamns, indicating that the supposed other sex (P. Remus) was not known 

 to him personally. The name of Panthous must therefore altogether drop, it having been 

 applied to this species only through a double error — first, that of Linnaeus, in supposing 

 his Panthous to be distinct from Priamus, and then that of Clerck, in thinking that a 

 female Remus was the male of the Linnean Panthous. 



7. ORNiTnoPTERA HELENA, Linnoeus. 



d . P. Helena, Cram. Pap. Ex. t. 140. f. A,B. 0. Helena, Boisd. Sp. Gen. Lep. p. 177. 

 $ . P. Amphimedon, Cram. Pap. Ex. t. 194. f. A. 0. Amphimedon, Boisd. Sp. Gen. p. 176. 

 Hah. Amboyna and Ceram {Wall.). 



The females from these localities are always sooty, yviih. the spots and markings on the 

 hinder wings of a dull buff-colour even in the freshest specimens. 



a. Local form Bouruensis. — Male : exactly resembles the Amboyna specimens, except 

 that the yellow patch is more variable in form and extent. 



Female : nearly black, and Avith the markings on the lower wings almost as pure and 

 deep yellow as in the males : size a little smaller than in the type. 

 Hal>. Bouru (IVall.). 



b. Local form Papnensis. — Female : sooty black, the two first branches of the sub- 



