notes oil Butter Jlics from the Victoria Nuanza. 221 



single specimen in the Wiggins collection, but it appears 

 to be common in other collections from the same area. 

 It is mimicked by : — 



A yellow hind-winged $ form of Bclcnois zochalia, f. 

 formosa, Butler, of which there are three specimens. Of 

 the ordinary form of the $ there are 2, and \4> ^ ^ . 



Phrissura lasti, Grose-Smith (1). 



Phrissura ])hQibc, Butler, (2), in which the resemblance 

 is on the upper surface alone. 



II. Mylothris agathina (189), a very common species, is 

 white with blackish marginal spots on the upperside, 

 while beneath, the apex of fore wings and whole of hind 

 wings are ochreous ; furthermore the base of underside 

 fore wing is largely, and that of hind wing slightly, diffused 

 with orange-red. 



These characters on both surfaces are faithfully imitated 

 by:- 



Belenois thysa, Hopff. (14). 

 Pinacopteryr. ruhrocostalis, Lanz. (14). 

 Phrissura ■phasic (2), mimics M. agathina on the under 

 surface only, thus entering Group II. as well as I. 



III. Mylothris ynlii, Butler (25), and Mylothris 'poppea, 

 Cram. (40), form a synaposematic pair, both being silvery- 

 white with black marginal markings and both having the 

 base of the fore-wing underside flushed with ochreous. 



They are closely mimicked by : — 



Phrissura. sylvia, Fabr. (17). 

 Pinacoptcry.r dixcyi, Neave (12). 



The latter species is only represented in the collections 

 from the Tore country on the eastern slopes of the 

 Ruwenzori Mts., some distance west of the Lake. The other 

 species occur both east and west of the Lake. 



The extremely abundant yellow and black Terias — 



T. hrigitta, Cram. (89) 



T. dcsjardinsi, f. regularis, Boisd. (45) 



T. scncgalensis (70) 



are closely mimicked by the Lycsenid, Teriomima xantha, 

 Grose-Smith (4), 



