Sraiicc (III Id I'ccrin- 1921 'M 



days Ü1C lar\a piqiiilcd and llic iiiia^o LMiu>rjL:-od 

 5 ^\('elvs la lor. 



Dale of capliiiv ut larva : November loth. 



Date of pupation of larva : November i5th. 



Dale of eiiuM'j^eiice of imap) : Deccmlier •.>r)lii. 



The pupa vNas supported bet\Neen the submerged 

 leaves oL' \ajas iiiarina and Iherefore tiie moth 

 must have passed through the water to reach the 

 surface. As 1 was desirous of identifying the species 

 it was not possible to (;vamine the pupa and hence 

 1 was unable to determine how the pupa obtained 

 its oxygen. 



Although acpiatie lepidopterous hirvaî have 

 been rocorded fi'om many parts of the world, this 

 seems to be the first (>ase of their being observed 

 in Egypt and therefore tlie above rcc^ord may be of 

 interest to entomologists. As soon as more material 

 can be obtained it is intended to work t)ut the life- 

 cycle of this interesting insect — and especially Us 

 adaptations to an aquatic mode of life, w^hich is so 

 rarely met with among the Lepidoptem. 



