124 BULLETIN 132, UNIl^ED STATES NATIONAL MUSEUM 



SCIAPHILA DUPLEX (Walsingham) 



(Figs. 17, 51. 257, 3S7) 



Penthina duplex Walsingham, Proc. Ent. Soc. London, 1905, p. 501. 

 Olethreutes duplex Febnald, in Dyar List N. Amer. Lepid., no. 5049, 1903. — 



Dyar, Proc. U. S. Nat. Mus., vol. 27, 1904, p. 925. — Keakfott, Can. Ent., 



vol. 37, 1905, p. 207.— Forbes, Memoir 68, Cornell Univ. Agr. Exp. Sta., 



1924, p. 456. 

 Argyroploce duplex Barnes and McDunnough, Check List. Lepid. Bor. 



Amer., no. 6859, 1917.— Blackmore, Rep. Prov. Mus. Nat. Hist. British. 



Columbia, 1921, p. M-33. 

 Argyroploce thallasana McDunnough, Can. Ent., vol. 54, 1922, p. 43. 



The American form is probably only a race of the European 

 hranderiana Linnaeus. Our specimens, however, usually have the 

 antemedian and postmedian areas of fore wing distinctly white. 

 There are also slight genitalia differences. In duplex the cucullus is 

 narrower toward apex, more weakly spined along the lower margin 

 and the aedoeagus is more strongly scobinate. From the differences 

 shown in genitalia among European specimens it would seem that 

 there are two very distinct varieties under the one name in Europe. 

 In order to avoid any possible confusion, I am for the present keep- 

 ing duplex as a separate species. Both it and hranderiana are varia- 

 ble in pattern. Both have the same food plant and like female 

 genitalia. 



McDunnough's thallasana is only a dark suffused form of duplex. 



Male and female genitalia figured from specimens in National Col- 

 lection from Kaslo, British Columbia (H. G. Dyar, " No. 19140, on 

 Aspen," male) and Scranton, Pa. (E. A. Lister, "VI-4-1905," 

 female). 



Distribution. — Pennsylvania, New York, New Hampshire, Ver- 

 mont, Wisconsin, Colorado, Utah, Nevada, California, British Co- 

 lumbia, Alberta, Manitoba, and Ontario. 



Alar expanse. — 21-27, mm. 



Types. — In British Museum {duplex) ; Canadian National Collec- 

 tion {thallasana). 



Type localities. — ^Loveland, Colo, {duplex) ; Aweme, Manitoba 

 {thallasan/i) . 



Food plant. — Populus tremuloides. 



14. BADEBECIA, new genus 



(Fig-s. 43, 256) 



Genotype. — Tortrix urticana Hiibner (Europe and Nortli 

 America). 



Characters as in Aphania except: 

 Forewing with vein 2 from cell before %. 



