Liparidae 



regions of America, the specimens figured having been received 

 by the writer from Point Barrow in Alaska. 



Genus NOTOLOPHUS Germar 

 (i) Notolophus antiqua Linnaeus, Plate XXXVIII, Fig. 18, $ . 



Syn. nova Fitch. 



The moth is found in Europe and in the northern portions of 

 the United States and in Canada. 



Genus HEMEROCAMPA Dyar 



The females in this genus are wingless, or have the wings at 

 most rudimentary. The eggs are deposited in masses, generally 

 upon the surface of the cocoon from which the female has 

 emerged. The larvae are voracious feeders; and as the species 

 are generally very prolific, the insects inflict a great deal of dam- 

 age upon vegetation. 



(1) Hemerocampa vetusta Boisduval, Plate XXXVIII, Fig. 



Syn. cana Henry Edwards ; gulosa Henry Edwards. 



The insect replaces on the Pacific coast the following species, 

 which in its habits it closely resembles. 



(2) Hemerocampa leucostigma Abbot & Smith, Plate 

 XXXVIII, Fig. 20, 3, Fig. 21, ?. (The White-marked Tussock 

 Moth.) 



Syn. leucographa Geyer ; intermedia Fitch ; borealis Fitch ; obliviosa Henry 

 Edwards. 



The moth is widely distributed in the Appalachian subregion, 

 and its ravages upon shade-trees and shrubbery are matter of 

 familiar observation. The insect is double-brooded in the more 

 northern portions of its range, and triple- 

 brooded farther south. The first generation is 

 matured from eggs which, having been de- 

 posited in the fall of the year, remain in situ 

 upon the cocoons upon which they were de- 

 posited until they are hatched by the heat of 

 the sunshine of spring. The caterpillars rap- 

 idly develop, and the second generation, which 

 is always much more numerous than the first, 

 begins to appear about the middle of July in 

 the latitude of New York and Philadelphia. 

 306 



FIG. 182 



leucostigma, 

 (After Riley.) 



