AGRICULTURAL EXPERIMENT STATION. 



123 



Chrysalis, enclosed in the cocoon, oval, brown or sometimes 

 whitish below, covered with whitish hairs or down. Figure 2 d. 

 shows the male chrysalis and Figure 2 c. the female chrysalis. 



Perfect Insect (female) wingless or wings mere rudiments, 

 light gray, oblong oval, body distended with eggs; legs long. 

 Figure 3 represents the female resting upon the empty cocoon 

 from which she emerged. 



Perfect Insect (male) winged, expands an inch and a quarter, 

 fore wings crossed by wavy bands of darker shade ; a small 

 black spot on the outer edge of the wing toward the tip, beyond 

 it an oblique blackish stripe, near the outer hind angle a minute 

 white crescent. Body gray with a small black tuft near the base 

 of the abdomen, antennae feathered. Figure 4 represents the male 

 moth natural size. 



Si 



Fig. 3. 



Life History. 

 During the winter months there will be found occasionally in 

 the orchard, dead leaves attached to the branches of the trees. 

 Upon examination these will usually be found to contain an 

 empty, gray cocoon with a mass of eggs attached to it, as 

 described above. These eggs hatch in Maine about the first of 

 June or earlier farther south. The young larvae at once begin to 

 devour the leaves of the tree. When disturbed they lower them- 

 selves by means of a silken thread which they climb when danger 

 is past. The beautiful caterpillars described above feed about 

 two months and then spin their cocoons. The moths soon 

 emerge and the females being little more than animated masses of 

 eggs are sluggish. The males having wings are able to fly and 

 they meet the females while resting upon the empty cocoon to 

 which the mass of eggs is finally attached. The eggs soon hatch, 

 producing the second brood of caterpillars which complete their 

 growth late in the season and enter the chrysalis state. The 



