NEUROPTERS. OR NET-WINGED INSECTS. 175 



the autumn. These insects are about an inch and a 

 half long, and the wings shut around the body like the 

 two valves of a pea-pod. They produce sounds resem- 

 bling the words " Katy did." These are made by 

 means of a thin membrane. stretched in a strong frame 

 which is situated in the overlapping portion of each 

 wing-cover. The rubbing of the frames against each 

 other, as the insect opens and shuts its wings, makes 

 the sounds. 



MIGRATOKY LOCUSTS. 



These are grasshopper-like insects which have the 

 antenna? short, and no long organ for laying eggs. 

 The kinds are many, and some of the tropical ones are 



Fig. 330. Clouded Locust, 



three or four inches long. The most common grass- 

 hoppers of the United States belong in this group, and 

 are familiarly known as the Red-legged Locust, Caro- 

 lina Locust, Coral-winged Locust, Yellow-winged Lo- 

 cust, and Clouded Locust. 



NET-WINGED INSECTS, OR NEUROPTERS. 



These insects have four thin, finely net-veined wings, 

 stout jaws, and no sting. In the larva state they live 

 in the water. The Stone-Flies, Figure 331, and Ephem- 

 eras, Figure 332, have long appendages at the hind 

 part of the body. 



