GENUS I. BUTTERFLIES. 



SEC. III. S P. XXV. CLOUDED ARGUS. 



PL 22. 



Tithonus. Linnœus. 

 Large Gate-keeper. Harris. 



The caterpillars of this fly feed on grafs, and live through the winter. They 

 are full fed, as at fig. i, and change to chryfalis, fee fig. 2, about the firft week 

 in June ; and the butterflies make their appearance the end of the fame month, 

 or the beginning of July following. The female fly is larger than the male, and 

 differs in not having the dark clouded marking on the upper wings ; fee fig. 4. 

 The male is reprefented as flying at fig. 3, and the under parts are difplayed at 

 fig. 5. This is a common fpecies, and frequents the fides of hedges, and the 

 environs of woods, when on the wing. It may be taken without difficulty, as 

 it flies low, and fettles on the bloffbms of different plants for food. 



