WEEVIL. 
67 
since the Curculio argentatus, a small insect of 
about a quarter of an inch in length, and of the 
most beautiful gold or silver-green colour, ex- 
hibits, when viewed with a microscope, a splendor 
of a similar nature, and produced by a covering of 
similar scales, shining with a metallic lustre. It is 
frequently seen during the summer months in fields 
and gardens. 
So very extensive is the genus Curculio, that 
Mr. Marsham, in his Entomologia Britaniiicai enu- 
merates no fewer than 234 British species. 
