BUTTERFLIES. 



569 



unceasing war against the day-flying insects. When one is 

 captured, the dragon-fl}' retires to a tree, and there, seated 



fMl^ 



THE EREBUS STRIX. 



on a branch, devours the body at its leisure. It is wonderful 

 the number of flies which these beautiful insects destroy. 

 When evening comes on they eagerly fly ofl* to the chase, 

 amid the swamps and around the tree-tops, or wherever their 



victims cono-resrate. 



o o 



