12 
Boise, Idaho. During 1901 four well-preserved specimens and eight 
badly worn specimens were secured. In 1902 six of these buff-colored 
moths were bred among 182 normal moths. In material collected in 
Idaho in the fall of 1902, from which about 30 moths emerged the 
following spring, five were of this variet3\ Mr. A. F. Hitt, of Weiser, 
Idaho, and Mr. Alex. McPherson, tell the writer that the}^ have 
noticed these buff-colored moths. Mr. Hitt, in 1896, bred seven of 
these among 50 normal moths. 
The writer submitted the moths to Mr. August Busck, of the United 
States Department of Agriculture, for determination, and in the 
Proceedings of the Entomological Societj^of Washington he describes 
them as follows: 
These specimens were submitted to the writer for determination, and I have care- 
fully examinedt hem structurally in comparison with the common form of 0/(7/a(«) 
pomonella Linne. I do not think there can be any doubt about their being this 
species; the oral parts, the venation, the secondary male sexual character of the 
hind wing, and the external sexual organs of both sexes are identically as found in 
the common dark form of the codHng moth. The general pattern of ornamentation 
is also the same, but the coloration is so strikingly different that the variety deserves 
a special name, the more so as no intermediate forms seem to occur. I propose 
that it be known as Cydia (^) pomonella Linn6, var. simpsonii. 
Instead of the dark fuscous color of the common form, the variety is light buff, 
with sUghtly darker buff transverse striation. In the common form the forewings 
are finely irro rated with white, each scale being slightly white tipped; in simpsonii 
the scales are not white tipped. The terminal jmtch, which in the common form is 
dark coppery l)rown, nearly black, and with dark violaceous metallic streaks, is in 
simpsonii light fawn brown with pure golden metallic streaks. The extreme apical 
edge before the cilia is in the common form black, in the variety reddish brown, 
and the cilia in simpsonii are light golden ocherous instead of the dark fuscous of the 
common form. The head, pali)i, l)ody, legs, and the tuft of hairs on the hind wings 
of the male are correspondingly light-buff colored in the variety instead of dark 
fuscous, as in the common form. 
Besides Mr. Simpson's specimens, in which both sexes are equally represented, 
there is in the United States National Museum a single-female, labeled ' ' Cook, Cali- 
fornia, July 30, 1883." 
Type: No. 6803, United States National Museum. 
The writer has never observed an}^ gradations between this variety 
and the common form. It is most probable that this variety is dis- 
tinctly western, as there are no records of its having been bred in the 
East. No fittempt was made to secure the earlier stages of the insect, 
and, as far as observations were made, its life history is similar to that 
of the normal form of the codling moth, as the larvae from which this 
variet}^ was bred were taken with the larva? of the normal form under 
bands on apple trees. One might theorize on what conditions in the 
West have given rise to this new variety, but to state with any degree 
«The generic name Cydia used by Mr. Busck before his investigations, which 
resulted in the restoration of the old name Carpocapsa. 
