56 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
often with darker markings on caudal margin near median line. 
Anal plate brownish, with comblike structure on caudal curvature 
composed of from 5 to 7 closely set dark brown spines, the outer spine 
on each side considerably reduced. Spiracles small, dark brown; 
thoracic legs well developed, whitish, distal end dark, claw black. 
Abdominal prolegs well developed, each with a single circle of from 
25 to 27 strongly curved, sickle-lke hooks. Tubercular areas disk- 
like, whitish, with a single, slender, hght-colored seta. On third 
abdominal segment: Tubercle I central, on dorso-lateral region; tuber- 
cle II caudo-ventrad of I, on posterior annulet; tubercle III about 
its width above spiracle; tubercles IV and V coalesced, directly below 
| spiracle, about twice as far from it as is tubercle ITI, the seta of 
i | tubercle IV being considerably reduced; tubercle VI caudo-ventrad 
\ a of IV and V, and tubercle VII with three sete situated near base of 
proleg.* (See fig. 11, ¢.) 
| Cocoon.—About 6 mm. long and a third as wide. Exterior more 
or less covered with bits of bark or other material, concolorous with 
| | | surroundings; within densely lined with whitish silk. (See fig. 11, 
| 
| 
| 
\ 
| 
d, é.) 
Pupa.—About 5mm. long. Color uniformly brown, except thoracic 
region, leg and wing sheaths, which, as pupa nears maturity, are 
| darker. On dorsum of abdominal segments 3 to 7, between the spir- 
acles on each side, are 2 rows of short, stout spines, projecting 
caudad, one row near cephalic border of segment and one near center 
i | or on caudal margin, the spines of caudal row smaller and more 
i | | numerous. Remaining segments (except 1 and 2, which are spineless) 
Ai with but a single row. Anal segment truncate, the 7 to 8 stout spines 
Wh set on caudal margin. Cremaster of from 5 to 8 slender hairs hooked 
ne at tip and arising about equally distant from each other on caudal 
wi region of anal segment. Spiracles slightly elevated, dark brown. 
| Wing sheaths and those of third pair of legs about equal in length 
Hi) and reaching middle of fourth abdominal segment. In emergence 
of adult, the pupa works out from cocoon about one-half its length, 
Vi the empty exuvium remaining in this position in the cocoon. (See 
i | fig. 1s d, é.) 
Adult or moth.—The description of the adult as given by Walsh in 
his first report as Illinois State entomologist, page 80, is herewith 
| presented : | 
a a Ground-color of front wing, black. The basal one-fourth irregularly covered 
wa | with rust-red, so as to leave only a few black markings. On the costa, and 
| | he rather more than one-third of the way to the apex of the wing, a pair of streaks 
: obliquely directed toward the posterior angle of the wing; the inner streak of 
«The description of the larva by Simpson (Bulletin No. 41, Division of Ento- 
mology, p. 28) is not entirely in accord with the above. 'The length is said to 
be five-eighths inch, and for the “ pre-spiracular” tubercle three setz are re- 
corded. 
