28S Wisconsin State Horticultural Society. 



■ward, and a similar tuft from the ninth segment, pointing back- 

 On the second, third, fourth and fifth segments are placed cream 

 colored tufts of yellowish hair, and on the ninth and tenth are two 

 little red tubercles, or warts. 



The following description of the moths is given by the Rev. C. J. 

 S. Bethune, in the Ontario Fruit- Growers' Report: "These cater- 

 pillars feed singly on the leaves of apple, plum, and a large number 

 of other trees, doing a great deal of damage when numerous.. 

 "When full grown they spin their silken cocoons on twigs of the 

 trees which they frequent, or on fences; in the former case they 

 draw down a leaf as a covering, and firmly attach it to the cocoon. 

 The male cocoon is white, or yellowish, and so thin as to show the 

 insect through it; but the female cocoon is twice as large and much 

 more firmly constructed, of a darker color, and contains a different 

 shaped and a much larger chrysalis. The insect remains about a 

 fortnight in the chrysalis state, and then comes forth in the form 

 of a moth. The male has broad ashen-gray wings, 

 which expand about an inch and a cp.iarter. When 

 at rest, it is heart shaped. The fore wings have a few 

 indistinct black lines across them, and a white, cres- 

 cent shaped dot near the lower corner; the anten- 

 na? are heavily and beautifully feathered, the tips of 

 the plumes bending forward and approaching each 



other. The female, on the other hand, is extraordi- 



., ■,. rr -, n , * c -\ Male Tussock 



narily different, and would never be suspected of lay- Moth 



ing claim to the title of a moth; she has the merest 

 rudiments of wings, which are not observable except on close in- 

 spection, and a thin, simple antenna?; in fact, she is more like an 

 animated bag of eggs than anything else. Being unable to fly, she 

 remains on the cocoon, where she is found by her mate; after pair- 

 ing, the female lays her eggs on the cocoon, and her work being ac- 

 complished, drops down and dies." 



As, like the canker worm, the female moth is wingless, their dis-* 

 tribution is comparatively slow. Also, like the canker worm, when 

 disturbed they let themselves down by a web, and are doubtless 

 caught in this way by teams and passers-by and carried to other 

 places, where they find congenial food, complete their development 

 and form new colonies. They are also doubtless spread by means 

 of egg masses on young trees, brought from places infested with 



