500 Kev. K. St. Aubyn Rogers' Bionomic Notes on 



tiberius $ are fairly good mimics. This combination is 

 liowever more distinguished than that last described by 

 the strength and beauty of the secondary mimetic resem- 

 blances. The model and chief Nymphaline mimics are well 

 seen, represented f of the natural size, on Plate XXVII. 

 The plate includes the female oiEuxanthe wakcfieldi (Fig. 

 2) with a pattern resembling that of this combination, but 

 in life an outlying member of the association with A. 

 dominicanus for its centre. 



Nymphaline. Pseudacnea hmxtia, Cram., sub-sp. 

 ex-panm., Butl. (Plate XXVII, fig. 4). 

 Eitralia dece])too\ Trim. (Fig. 6). 

 Euralia Idrhyi, Butl. (Fig. 5). 

 Euxanthe tiberius, Gr.-Sm., ^ (Fig. 3). 

 Aterica galene, Brown (white f. of $). 



Amanris oclilea, Boisd. (Plate XXVII, fig. 1). The 

 habits of the central model of this association are quite 

 like those of A. niavius dominicanus, except that it is a 

 little more partial to the open country, and is fonder of 

 flowers. 



Pseudacra lucretia, Cram., sub-sp. expansa, Butl. (Plate 

 XXVII, fig. 4). This species often settles on leaves with 

 wings expanded, and in every way it has much more the 

 appearance of a large Neptis than any of the other mem- 

 bers of the combination. Although the pattern of this 

 species so closely resembles that of the two Euralias the 

 Pscudacrma appears whiter on the wing and has a more 

 floating flight. It is possible that the characteristic 

 curve of the large spots of the fore-wing, to which Pro- 

 fessor Poulton has drawn attention, has been influenced 

 by the curved band in the fore-wing so well marked in 

 this genus, of which N. agatha is a good example. I have 

 only seen the species near Rabai. 



Euralia deceptor, Trim. (Plate XXVII, fig. 6), and 

 E. kirhji, Butl. (Fig. 5). The two Euralias resemble one 

 another strongly, especially on the wing, and are active 

 insects very fond of pursuing butterflies of their own and ^ 

 other species. I have little doubt, however, that in the 

 position of permanent rest they would follow the Danaine 

 model, and in fact I have observed E. deceptor in this 

 attitude. 



[Mombasa, April 5, 1905. I have only seen Pseudacrssa 

 expansa near Rabai, and Hypolimnas {Euralia) deceptor and 



