12 



Boise, Idaho. During 1901 four well-preserved specimens and eight 

 badly worn specimens were secured. In 1902 six of these ])uff-colored 

 moths were bred among 1S2 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 variety. Mr. A. F. Hitt, of Weiser, 

 Idaho, and Mr. Alex. McPherson, tell the writer that thev have 

 noticed these buff-colored moths. Mr. Hitt, in 1S96, 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 Societ}'^ 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 Ci/dia{") 

 pomoneUa 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 fdund in 

 the common dark form of the codling 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 Ci/dia (') pnmonella Linne, var. xlmpsonii. 



Instead of the dark fuscous color of the common form, the variety is light buff, 

 with slightly darker buff transverse striation. In the common form the forewings 

 are finely irrorated with white, each scale being slightly white tipped; in simpsonii 

 the scales are not white tipped. The terminal patch, which in the common form is 

 dark coppery brown, 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, palpi, body, 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 attempt 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 larvte from which this 

 variety was bred were taken with the larvsv 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 



a The generic name Q/dia used by Mr. Busck before his investigations, which 

 resulted in the restoration of the old name f'arpocapsa. 



