THE MONTHLY BULLETIN. 



189 



THE SPOTLESS FALL WEB-WORM. 



HijphanirUi fc.rfor Harris (Family Aretiidae). 

 (Fig. 176.) 



General Appearance. — The adults are slightly over one half inch 

 long with a wing expanse of one and one half inches. The body is 

 light and the wings pure or dusky white. There are no spots upon 

 wings or body. This species is distinguished from the fall webworm 

 {Hyphantria cunea Drury) of the Eastern States by the pure white 



Fig. 176. — The spotless fall webworm {Hyphan- 

 tria textor Harris). Top, female; bottom, male. 

 Enlarged. (Original.) 



antenna and the absence of spots on the abdomen. The full grown 

 larvffi are very hairy, yellowish or greenish in color, with a darker 

 stripe along the back, a yellow stripe along the side and covered with 

 whitish hairs which arise from black and orange-yellow tubercle.s. 



Life History. — This species hibernates in the pupa stage within a 

 cocoon attached to tree trunks, fences, rubbish or under the ground. 

 The moths emerge in the spring, mate and during the nights the 

 females deposit from four hundred to five hundred eggs in clusters 

 upon the leaves of the food plants. The caterpillars feed in colonies 

 and spin webs large enough to accommodate all the members which 



