516 Rev. K. St. Aubyn Rogers' Bionomic Notes on 



The following specimens are figured by Professor Poulton 

 in Trans. Ent. Soc: Lond., 1906, p. 281. 



The tabulated examples of Jlavescens possessed very 

 pale ochreous spots in the fore-wing, so that it was diffi- 

 cult to distinguish worn specimens from irrotcina with -its 

 white spots. Omitting the consideration oi fa/lax, which 

 may be a distinct species, it is seen by this list that 

 scmifulvcsccns is by no means rare as compared with the 

 other two forms. 



[So far as this comparatively short list enables us to 

 '^wAgQ, fulvcscens is nearly half as numerous and scmiful- 

 vesccns about a third as numerous as the combined proteina 

 and Jlavescens forms. This means that they are far from 

 rare, and helps us to understand the probable secondary 

 mimicry of fuhescens by the under side of the female 

 Acrxa uvni, Grose-Smith. A single specimen of the 

 female of this small Acrxa was captured in Mamba, Kili- 

 manjaro, on September 25, 1905. The under side of the 

 specimen differs entirely from that of the extremely 

 abundant male and from other females of its group, in 

 the overspreading fulvous tint which tends to obliterate 

 the markings, producing at the same time a considerable 

 superficial resemblance to the fulvesccns form of A. john- 

 stoni. 



The fulvesccns form, in addition to its mimicry of the 

 cloo-ippus, Klug, form of Danaiclct chrysi^ypns, L., resembles 

 the daira form of Acrma encedon, L. Both dorippiis and 

 daira, Godm. and Salv., are the dominant forms of their 

 respective species. The local form of Acrma douhledayi, 

 Guer., of which a male was taken on Kilimanjaro, January 

 26-31, 1906, also much resembles daira and fuhescens, 

 and would probably be indistinguishable from these when 

 upon the wing. E. B. P.] 



[Address and date lost. 



The two different forms of this [Acr/va Johnstoni] re- 

 semble other pnjtected species, the commoner forms [pro- 

 teina and /fat-C6CC?is] being very like A. alhimaculata which 



