THE MONTHLY BULLETIN. 641 



The Pupal Stage. 



After the larvae have become full grown they change to the pupal 

 stage within a rolled up leaf or cluster of leaves. At first they are 

 green in color, later changing to a dark brown, and in about ten days 

 transformation to the moth stage takes place. Fig. 357, 4, shows a pupa 

 photographed on a leaf where this stage was being passed. 



The Moth. 



(Fig. 358.) 



The following description of the moth is copied from Circular No. 5, 

 Office of State Entomologist, on "The Fruit-Tree Leaf -Roller in Colo- 

 rado," by C. P. Gillette and Geo. P. Weldon: 



"The moths measure from ten to thirteen millimeters, or from three 

 eighths to one half of an inch, in length, with the wings closed; the 

 expanse of the full-spread wings usually varies between eighteen and 

 twenty-five millimeters, or from eleven sixteenths to one inch ; the pre- 

 vailing color is a rusty brown, varying in typical specimens from 

 rather light to quite dark, and there is always present a large pale- 

 yellow to almost white diagonal patch on the front or caustal margin 

 of the wing a little beyond the middle ; a smaller light area occurs on 

 the front margin of the wing about halfway between the large light 

 area and the base of the wings; the two light areas are separated by 

 a dark rusty-brown diagonal band or stripe ; this stripe and an area 

 just beyond the large light patch are usually the darkest portions of 

 the wings ; the dark-colored area is more or less broken or mottled with 

 pale-yellow scales; the abdomen and lower surface of the hind wing 

 are light yellow, but the upper surface of the hind wing is usually more 

 or less dusky or smoky in color, especially toward the distal portions ; 

 the male averages smaller than the female and has the light and dark 

 coloration more sharply contrasted; in the darkest females the smaller 

 light-colored area on the wing is sometimes obliterated; in the lighter 

 examples the distal portion of the wing is often distinctly yellowish in 

 color, with a greater or less number of rusty-brown scales intermingled, 

 this light portion frequently connecting with the larger light area on 

 the anterior margin of the wing; in extremely light examples, which 

 occur with some frequency, the entire surface of the fore wing is light 

 yellow in color, with slight rusty outlines, as shown in Fig. 358, 1. 

 There are occasional specimens with very contrasting colors, in which 

 the ground color of the vidng is light yellow and the dark markings 

 somewhat in the form of a letter Y across the wing near the central 

 portion, as shown in Fig. 358, 6. In all cases where these moths with 

 the extreme light or dark colors have been reared we have obtained 

 them from individual egg masses, from which the greater number of 

 the moths had the typical color markings shown in Fig. 358, 2, 5 and 7. 

 In all the examples we have reared, the very light-colored examples have 

 been females, while it is not uncommon for the darker-colored individ- 

 uals to be females also. ' ' 



