28 



measure just about an inch from tip to tip of the front 

 pair. The wings of the hind pair are much smaller. Its- 

 empty case may be known by the fact that it leaves the- 

 empty pupal skin partly protruding from the opening at- 

 the lower end. 



Pig, 9. The bag-worm, a, cases fastened to twig of red cedar, as- 

 seen when the worms hav^e changed to pupte; b, c, d, e, bags 

 taken from different trees. 6, from maple; .•, from arbor vitse; d, 

 from spruce; e from white pine. (From a photograph.) 



LIKE-HISTORY FOR KENTIK^KY. 



The young bag-worms hatch from the eggs early in 

 May, and before the end of June may become noticeable 

 upon ti-ees. They are especiallly fond of red cedar, and 

 to a less extent of arbor vitse, and may be found on such 



