76 



CALIFORNIA STATE COMMISSION OF HORTICULTURE. 



The gypsy-moth (of which we give a beautiful illustration in colored 

 Plate XI), whose work of devastation in the Eastern and New Eng- 



FIG. 69. Tussock-moth (Henierocampa retusta). a, female moth on 

 cocoon ; b, young caterpillar; c, female pupa; d, male pupa; e, larva 

 on leaf; /, male moth. 



land States has attracted the attention of the whole country, belongs, 

 also, to this family. 



The family Lasioeampidse is of interest to us principally from the 

 fact that in it we find the tent-caterpillars. The most prominent 

 members of this family are well known from their habit of forming a 



Female moth. Larva. 



FIG. 70. Tent-caterpillar (Clisiocampa xylvatica). 



covering or tent, in which they congregate, returning to it, as to a com- 

 mon home, after they have gorged themselves on the foliage of the 

 trees which they infest. When they outgrow their tent, they form 

 another. The orchard tent-caterpillar (Clisiocampa americana) is 

 sometimes a very serious pest in our fruit orchards, especially apples, 



