MR. TRIMEN ON MIMETIC ANALOGIES AMONG AFRICAN BUTTERFLIES. 505 



Table (continued). 



ACUJETDM. 



Acrfea Gea c^ and 5 . . 

 Sierra Leone. 

 Ashanti. 

 Calabar. 



Aori^a Euryta 



Var. 2 . . ; 



Calabar. 



Var. 5 



Congo. 



Var. ? 



Congo. 



Var. 2 



Acrfea Aganico <£ . .. . 

 Port Natal. 



Acrsea Lj'coa 



Sierra Leone. 

 Calabar. 

 Acrsea Zetes c5' and J . , 



Type 



Ashanti. 

 Calabar. 



Var. austr 



Port Natal. 

 Acraea Egina J and $ 



Congo. 



Nymph. iLiDjE. 



Pauopea Hirce c? and $ 

 Type 

 ivsnanti. 

 Calabar. 



Panopea Hirce 



Var. 2. 



Calabar. 

 Var. 2. 

 Congo. 



Panopea Tarquinia, cf . 



Port Natal. 

 Panopea Lucretia. 

 Sierra Leone. 

 Calabar. 

 Panopea Boisduvalii. 

 Type. 

 A.shanti. 

 Calabar. 

 ^'ar. austr. 

 Port Natal. 



EuKYTELIDiE. 



Melaniti.'5 Phegea 



Var. 2 (BammakoOjViesivf.) 

 Ashanti. 



Melanitis Phegea. 





Calabar. 



Papilionidje. 



Papilio Cynorta 2 

 (P. BoisduvalHamis, 

 Westw.) 

 Sierra Leone. 

 Ashanti. 

 Calabar. 



Papilio Ridleyanus (J 

 and 2- 

 Congo. 



In order to give a clear idea of the nature of these cases of mimicry, it is necessary to 

 consider them separately. I will therefore describe them seriatim as concisely as pos- 

 sible, only premising that, as regards Tropical Africa, so little is on record respecting the 

 range of individual species or their variation, to say nothing of habits and stations, that 

 it is at present impossible to treat satisfactorily of the instances occurring in that 

 immense tract of country. 



1. Danais Damocles, Fab. 



Danais Damocles, Ent. Syst. iii. 1. p. 41. no. 121 ; Palisot de Beauvois, Ins. Afr. et Am. Lep. t. 6. 

 figg. 3 a, 3 6. 



This species is rather widely spread in tropical Western Africa, examples having been 

 received from Sierra Leone, Ashanti, the Gaboon, and Angola (in about 8° S. lat.). It 

 is nearly related to D. Egialea, Cram., but is larger, and may be recognized by the 

 broader central white band of the fore wings (which extends below the first median 

 nervule), by the more irregular subapical white bar of the same wings, and by the 

 smaller and whiter basal space in the hind wings. The Gaboon examples form a variety 

 in which the pale basal patch in the hind wings is either reduced to a small spot or 

 altogether absent. In Angola this Danais is accompanied by a Diadema (which also 

 inhabits Congo) that very closely imitates it, differing from Diadema duhia, its nearest 

 ally*, precisely as Danais Damocles differs from its congener Eyialca. The two species 



* I propose for this butterfly the name of 



Diadema Damoclina, n. sp. 



Exp. 3 in.-3 in. 5 lin. Closely allied to D. dubia, Pal. de Beauv. Fore wing : central white bar much broader, 

 VOL. XXVI. 4 A 



