40 



VIGNETTES FROM NA TURE. 



insect, which sits quite indistinguishable 

 among the yellow flowers of the common 

 wild cactus, while it becomes a very conspicu- 

 ous creature indeed when it raises itself into 

 the air on its large and brilliant golden wings. 

 Something of the same sort, on a smaller 

 scale, may be observed with our own yellow 

 cabbage-butterflies on the golden bunches of 

 flowering charlock in an English cornfield. 



