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GENUS I. BUTTERFLIES. 



SEC. I. SP. XL SILVER SPOTTED FRITILLARY. 



PL ii. 



Aglaia. Linnaus. 



Dark Green Fritillary. Harris. 



This fpecies is out on the wing at the fame time as the laft defcribed ; flying 

 with it, and frequenting the fame places. It fo much refembles the preceding in 

 fize, colour, and markings, that it is in general miftaken for the fame fpecies ; 

 but the caterpillars are widely different ; and, as we have not met with one of 

 them in England, I have copied the figure from Roefel, and have likewife 

 added his defcription. " This fcarce caterpillar I received from a friend, full 

 grown, fee fig. i, on the 19th of June 1757. He found it in a wood, feeding 

 on a plant that he did not know, nothing but the leaves appearing, which re- 

 fembled thofe of the gilliflower, only were fmaller, and attached to long foot- 

 ftalks ifluing immediately from the root. When the caterpillar was about to 

 undergo its metamorphofis, it fpun a few threads againft the cover of the box, 

 in which it was kept ; and from thefe fufpended itfelf, with the fore part of the 

 body incurvated, remaining thus nearly the whole day. At length it freed itfelf 

 from its fkin, and appeared in the form of a chryfalis, as at fig. 2. In twelve 

 days I obtained the fine and beautiful butterfly, fig. 3. The male is fmaller 

 than the female, but there is fcarcely any other difference." 



