An Explanation of Plato I, with a Short Description of the 

 Different Forms of the Gypsy Moth and its Feeding 

 Habits. 



THE EGGS. 

 [Fig. 8, cluster of egg8 on bark ; Figs. 9 and 10, eggs magnified.] 



The, eggs are deposited in clusters, averaging about five hundred 

 ,.< ,-ach, aiul covered with yellow hairs from the body of the female 

 ninth. These egg-flusters are usually found in sheltered places on the 

 bark or in the crevices and cavities of trees, stumps and undergrowth ; 

 :;!M> on fences find buildings and in the crevices of stone walls and 

 other objects, near the plants or trees on which the insect feeds. The 



_- are laid in July, August and September, and hatch after the 

 f- 1 i:\ge >tarts in the late spring or early summer of the ensuing year; 

 therefore the insect passes the fall, winter and early spring in the egg. 



THE LARVA OK CATERPILLAR, 



[Figs. 6 and 7.] 



"\Vheu first hatched the caterpillars are less than one-fifth of an inch 

 in length. As they grow larger they may be seen in clusters upon the 

 trunks and branches of trees or in the cavities and other hiding places 

 where they gather in June, July and the first part of August. 



THE PUPA. 



[Fig. 5.] 



The caterpillar when fully grown sheds its outer covering and be- 

 comes a pupa or chrysalis. This usually occurs in July or August. 

 The pupa may be found in the same situations as the eggs. In j\Ias>a- 

 ehn-'its the. insect usually remains in the pupal state from ten to 

 thirteen days, emerging as a moth at the end of that period. 



THE MOTH. 



[Figs. 1 and 2, female ; Figs. 3 and 4, male.] 



The female moth usually deposits her eggs very near the abandoned 

 pupa ea-e, and within a few hours after emerging from it. She dies 

 soon after. The male is a rapid flyer. The female does not fly. 



HAHITS OK THE (."ATr.Kl'ILI.AKS. 



The gypsy moth feeds only when in the larval or caterpillar state. 

 In Ma-.-aelmM'tts the eggs of the gypsy moth begin hatching about 

 April 20, and the young continue to emerge until the middle of June. 

 The length of larval life varie< -ome\\ -hnt according to circumstances, 

 but probably averages ten weeks ; therefore the feeding season in this 

 country la.-t.s about four months. When the caterpillars are first 



