IN THE EASTBRN ARCmiFELAQO, 



173 



represented in Ceylon, Frequenting dark-coloured tree-stems, 

 1 ol)serred (and secnred) some fine specimens of flocks of 

 Amnmia decora. It has a curious habit of settling high up, 

 then nmning down the trunk, stopping at intervals flapping ita 

 wings; then flying off* to a neigh km ring stem to perform the 

 same mauoQuvres, A few miles from Hoodjooug f captured 

 the Eusemia helan^eri spread out on btoad leaves of Scita- 

 minsse. It emits a powerful odour of cloves* Several species 

 of lepidoptera mimic menil)€T3 of the Agarktidm^ hut I did 

 jiot discover here if Euseinia helangtri had a double, from 

 the island of Nias (on the west coast of Sumatm) IMr. Butler 

 hag recently described {Ann. and Mag. of Nat. Hist., July 1884) 

 a moth, a species of Eumlmmdm {Panmtkia himutans) which 

 mimics Ophthalmis dec^piens (of tiie AgarisHdm) ; while in 

 Amboimi, Ophthalmis Ihicea (which Ijelouga to the same family) 

 ia mimicked by Artaxa simiulam (of the Idpimdmy 



