Explanation of Plate XXVI I. 



Mimicry of the pattern of the Danaine butterfly, Amauris ochleOf 

 by Nymphalina; (Coast District of British East Africa, 1906). The 

 female oi Euxanthe wahefielcU (Fig. 2), although possessing a form of 

 the ochlea pattern, is during life aii outlying member of the domini- 

 ca7i»s-centred combination represented on Plate XXVI. Secondary 

 resemblances between the other Nymphaline mimics are evident. The 

 figures were prepared from the best of these 1906 specimens avail- 

 able, regardless of exact locality and date. Some of the time and 

 space relationships of the combination are shown on p. 496. The 

 figured specimens are in the Hope Department, Oxford University 

 Museum. 



All the figures are f of the natural size. 

 Fig. 1. Amauris ochlea, ^ : Eabai, about 700 ft., 14 miles N.W. 

 of Mombasa : May 12, 1906. The outline of the white 

 markings is very sharj). The mimetic resemblance to the 

 model is not as j^erfect as that seen in the combination 

 figured on Plate XXVI, but in the two species of Hypo- 

 limnas (Eicralia) the likeness is striking. 

 Fig. 2. Euxanthe wakejieldi, ? : captured, December 29, 1906, at the 

 same locality as the model shown in Fig. 1. In spite of 

 the pattern this species with its large white markings is 

 an outlying member of the Am. duminicanuti-ceniTed 

 combination shown on Plate XXVI. 

 Fig. 3. Euxanthe tiberius, §: captured (in coitu), January 19, 1907, 

 at the same locality as the model shown in Fig. 1. This 

 species of Euxanthe with its smaller white markings is an 

 outlying member of this combination. The curved direct- 

 ion of the chief white marking of the fore-wing is 

 probably developed in secondary resemblance of the 

 co-mimics shown in Figs. 4, 5 and 6. The fulvous base 

 of the fore-wings, barely visible in the figure, detracts 

 much from the mimetic likeness. 

 Fig. 4. Fseudacreea Incretia, sub-sp. expansa : captured at the same 

 place and time as the specimen shown in Fig. 2. The 

 resemblance to ochlea is very rough. This species is 

 probably dominant among the mimics, and acts as a 

 secondary model in respect to the form and direction of 

 the chief marking in the fore-wing. 



