

5 IS MR. TRIM! \ ON MIMETIC ANALOGIES AMONG AFRICAN BUTTERFLIES. 



Mr. M'K.-n, and in the collection of the South- African Museum, is interesting from its 

 atbelv wanting the ochreous subapical bar of the fore wings, all the apical region bein<> 

 simph semitransparent fuscous grey (as in the tropical form), though the basal and 

 inner-margin*] region has the red ground and black spotting as conspicuous as usual in 

 South-African ipecimenA This example thoroughly links the southern Boisdumlii 

 with the West-African t\ pe-fonny and seems to indicate that the process of assimilation 



tl 



u 



form of the Acrcea has not been fully completed 



o 



I li I of the southern A. Zetes, but especially the male, exhibit a tendency to 

 u hit li suffuaioii about the discoidal cell and median nervules of the hind wings. Even 

 Hi - sligW variation is imitated by the Fanopea; for the only example, a male,°brou _ 

 from the Zan.ln.si by the Rev. II. Rowley* has some faint whitish clouding in the same 

 I** ' the hind wings; and a female from Natal, in the South-African Museum, is 



marked in th< i t me manner. 



It i not only on tl,.- n,,per surface that Boisdtwa Hi successfully copies Zetes- the 

 and wide is rery effectually imitated, as well as such Acneoid characters as the yellow 



P.-''l;' Bid the spotting of tin- thorax and abdomen. Even in outline (the female Acrcea 

 bwnng h- produced and blunter fore wings than the male) Boisduvalii is in both 



sen- ;i faithful imitator. 



11. Acr*a I.mw, Cram. 



A 



n 



Gt 



•' ZW Godt Kne. Mwli.ix. p. 237. 



« V | ..rinci,K,l charact™ distinguishing this species from its near ally, Zetes, Linn., are 



> ... . -n the /, „ igs , ,, e rufous marki Mar the 



c 2S2ZT '' V r em ° St ° f the thrCe bkck ^ «» **> *-i d al cell, 



h , : , u ; ; iw t„ alons the hiud mar ^ and the w^-***™ <*«.** 



>»ar el L V " ^ T™ cha '' acters of **•) -e wanting, and the costal 



— r.11 . . " : :;r: • ;'; e « n > he w rr the biack «*■ ■» ia ^> — 

 — . be,,,,. ti',i. susSiS *- ai ? °° red s p° ts * the hM - 



chart.,-,,. .1, ,.. , , CS P1 ' "" m both s e«s; but the ? is much duller and 



Lik 

 Coi i ■•■ 



tHc i, and with f-uaimarkin 



,. .,t , T,;';:,' 1 ; ts Si ; ,rr : r ' eone and ca P e paim -; ^ * -^ occurs * 



, , .::,;„,?, KLt* 8 h r h r received p ^° 



hough a,,,„re„,lv I lo " ' ^ '".'J C ° lo f io »- ^ alone in its great genus, 



his FMT/,, hears' to •/ A ^^°* ^ 0ym " s &°*V- The likeness which 



A. L w , ia ls very striking . and on the 



Oxford, -where Professor W 



! - y- '* r wded as a „ ■ of thl [ Za j tToi ^ov Westwood kindly pointed it out to me. I have 



1 1 rend it hfehlv nrohaM.. n«a v , • , -, . am CS1 C0Untl 7 J but the presence of P. Boisduvalii f of the southern 



form) rend 



The/^ 



that Z * u inhabits that region. 



~- "» ""' " in, r m.- ,-m of th«> tore wino-s i — ^ -~— » - ouuiut-i insect, witn only a narrow reamsn 



I know , : but three samples i • ami " 17 """^ ""* hind - mar ^^ edging to the hind wings. 

 **•• P ' male and lemak ' » *■ British Museum, and a male in Mr. Hewitson's 





