PLATE IX. 



23 



to prove them either varieties of each other, or difference of fex only, 

 although Linnaeus confidered them as diftincl: fpecies. They differ in 

 colour, the caterpillars of one being light yellow brown, the other 

 black, and the upper wings of the Evonymella are lefs of a lead colour 

 than thofe of the Padella, 



To gain information on this fubje£t, we, this feafon, put the eggs 

 of feveral females into different glaffes ; the eggs of each female pro- 

 duced both kinds of caterpillars, they became chryfalides, and a num- 

 ber of each fort of the Flies came forth* 



PLATE 



