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. 



F 1 figured in Trans. Ent. Soc. Lond., lyOG : Plate XXII, Fig. 2". 



F 2 ., „ „ Plate XXI, Fig. 3^ 



F3 „ „ „ „ Fig. 2a. 



F 4 „ „ „ „ Fig. l\ 



F 5 „ „ „ „ Fig. 1". 



F6 „ „ „ „ Fig. 4^ 



The tabulated examples of flavcscens possessed very 

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

 cult to distinguish worn specimens from 'protcina with its 

 white spots. Omitting the consideration oi fallax, which 

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

 scmifulvcsccns is by no means rare as compared wath the 

 other two forms. 



[So far as this comparatively short list enables us to 

 '^w^gQ, fulvescens is nearly half as numerous and scmiful- 

 vcsccns about a third as numerous as the combined protcina 

 and flavcscens forms. This means that they are far from 

 rare, and helps i^ to understand the probable secondary 

 mimicry of fulvescens by the under side of the female 

 Acrsea uvui, 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 Avhich tends to obliterate 

 the markings, producing at the same time a considerable 

 superficial resemblance to the fulvescens ioim of A.john- 

 stoni. 



The fulvescens form, in addition to its mimicry of the 

 clorip2'>us, Klug, form of Danaicla chrysiptpns, L., resembles 

 the daira form of Acrxa cnccdon, L. Both doripims and 

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

 respective species. The local form of Acrma douUedayi, 

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

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

 and would probably be indistinguishable from these when 

 upon the wing. E. B. P.] 



[Address and date lost. 



The t\vo different forms of this [Acrma johnstoni] re- 

 semble other protected species, the commoner forms [pro- 

 tcina wci<\ flavcscens^ being very like A. alhimaculata which 



