374 'I'HF. PLACE OF MIMICRY 



{a)iti)iorii ^) of the African J\ daydaiiiis {jncropc). 

 Wlierever it occurs in other parts of the continent 

 darda}ius is represented by sub-species with mimetic 

 females - and non-mimetic males. The sub-species 

 mcropc, from the West Coast to the Victoria Nyanza, 

 possesses three forms of female, Jiippocoon and trophonius 

 resemblinc^ the Danaines — A7)iauris niavius and Lininas, 

 chrysippus \ plancnioidcs^ resembling the Acraeine 

 Plancnia po(^i^ci. The sub-species poIylropJius from the 

 Kiku\u Escarpment, tibullnsi from the East Coast, and 

 coica from the south and south-east have the additional 

 female form ccnea, mimicking Aviauris ccJicria and 



o 



albiviaculala. The plancmoidcsi form is wanting from 

 the sub-species ccnea, but exists in polytropJius and may 

 probably be found in tibullus. The Jiippocoon form of the 

 eastern and south-eastern sub-species resembles the form 

 of Aniauris iiiainus^ viz. do))iinica?nis, which is found in 

 the same district. Ancestral females, the trimcni form, 

 intermediate between the non-mimetic Abyssinian females 

 and Jiippocoon, the most primitive of the mimetic forms, 

 have been found in polytropJins and tibullus. All the 



' A single mimetic female corresponding to the hippocoon form of 

 merope, &c., and a single mimetic female corresponding to irophonius, but 

 both tailed, have now been found. 



* Even the primitive irijneni {oxva is a rough mimic of Aviauris niavius, 

 sub-species dominicanus. 



' The pdanemoides form is a recent addition of the highest interest to 

 our knowledge of this classical example of Mimicry. While the other 

 mimetic female forms all resemble Danaine butterflies, this newly 

 discovered female bears a beautiful likeness to Phuicina pogi^ei, one of 

 the Acraeinae (see also pp. 337-8). The INIimetic Resemblance was first 

 recognized by Mr. S. A. Neave, M.A., B.Sc, of Magdalen College, 

 Oxford {Proc. Ent. Soc, Pond., 1903, p. xli), while Mr. Roland Trimen, 

 F.R.S,, has described the female form, conferring upon it the appropriate 

 WTima planemoides {^Proc. Ent. Soc.^Lond., 1903, \)\\ xxxix, xl). 'I'his new 

 form has not yet been proved by breeding to i)e one of the females of the 

 meropt-gTou\i ; but a curious accident has supplied the missing evidence. 

 Among some examples captured in 1902-3 i)y Captain T. T. Behrens, 

 R.E., on the west shore of the Victoria Nyanza, near Entebbe, is a 

 partial hermaphrodite, in which, upon the left wings, traces of the non- 

 mimetic male colours and markings are intermingled with the utterly 

 different mimetic pattern of the female. This interesting individual may 

 be studied in the Hope Department. (See also Trans. Ent. Soc, Lond., 

 1906, p. 281, plate xviii, fig. 4.) 



