MIMICRY AMONGST THE LEPIDOPTERA. 83 



be prolonged until deposition of the ova has taken place. 

 In a few instances certain individuals only of the female 

 sex depart from the normal form of the species and assume 

 a, mimetic resemblance to one of distasteful character. Such 

 is the highly specialized variety of the female of Papilio 

 MeropCj which bears so strong a resemblance to the Danaid 

 Amauris Nlavius as to have been described under that 

 name by both Cramer and Godart. Boisduval, who recog- 

 nised it as a Papilio, did not suspect its relationship to 

 PapiUo Mcropc^ and named it P. WcstcrmannL It is singular 

 that Hijpolimnas Anthedon is also an exact mimic of A, 

 Niai'ius. HypoUmnas uiiaippus (female), which species 

 occurs in Asia and Africa, bears an almost perfect resem- 

 blance on the under side to Danais dirijsippu^ and its 

 African form Alcippus: the former species indeed occurs 

 -also in Trinidad, Cuba, and Florida, where Clwij.iippics is 

 not native, but as it is a migratory insect, and has been met 

 with at sea at great distances from land, it has probably 

 been introduced. Papilio Clytia bears a strong likeness to 

 u Danais, probably D. Limniacc^ whilst P. panopc^ which 

 Mr. Elwes (" Lepidoptera of Sikkim " : Tram. Ent. Soc.^ 

 1888) is assured is only another form of the preceding 

 species, may be easily mistaken for Euphxa core when on 

 the wing. Papilio pavadoxa^ P. cvnigma and P. telearchus 

 are mimics of Euploea midamns and its allies. Euripus 

 halitlievses^ female, bears a strong resemblance to Euploea 

 rhadamanthus, and, according to M. de Niceville, " not 

 only in form and coloration, but also in the slow-flapping 

 flight and the habit of settling in open places so character- 

 istic of Euphxa ; " he adds that the male, which is not 

 similarly protected, " has a rapid flight, and never settles 

 with expanded wings in conspicuous places as the female 

 does." Papilio caunus also mimics Euploea rliadamantlms, 



