42 



NATURE STUDY 



111 the neighborhood of Philadelphia, the wingless and 

 wing-pad forms are abundant in June and the early part 

 of July. 



There are several parasites, internal (worms) and ex- 

 ternal (a red mite), which infest the locust, but their most 

 powerful enemies are the birds, and a digger wasp which 

 stings them and leaves them helpless, but alive, as food 

 for its yonng. i^ 



WING PAD 



Wingless larva. 



Locusts. 



Nymph. 



Method : 



These animals may be collected in large quantities by 

 sweeping the grass on a sunny day with a butterfly net. 

 This net may be bought for twenty-five cents, or less, or 

 may be made. A piece of dowelling, one-half inch in 

 diameter and three feet long, will serve for a handle, 

 although a bamboo handle of greater diameter would be 

 better. An excellent rim may be made from rattan, about 

 the thickness of a lead pencil, or from wire. The rattan 

 should be bent into a circle, about a foot in diameter, the 

 two free ends placed outside of the handle and bound to it 



