KOBTH AMERICAN LASPEYEESIINAE AND CLETHEEUTINAE 159 



Genitalia as in typical concinnanutn. 



Distribution. — Marjdand, Penns3dvania, Ohio, New Jersey. On- 

 tario. 



Alar expanse. — 11-15 mm. 



Type. — In Canadian National Collection. 



Type locality. — Ottawa, Ontario. 



45. EXARTEMA FASCIATANUM Clemens 

 (Fige. 102, 232, 404) 



Exartema fasciatana Clemens, Proc. Acad. Nat. Sci. Philadelphia, 1860, 



p. 357. 

 Sciaphila decisana Walker, Cat. Lepid. Heter. Brit. Mus., vol. 28, 1863, 



p. 340. 

 Sericoris fasciatana Clemens, Proc. Ent. Soc. Philadelphia, vol. 5, 1865, 



p. 134. 

 Exartema albofasciatum Zeller, Verh. Zool.-bot. Ges. Wien, 1875, p. 272. 

 Exartema fasciatanum Fernald, iu Dyar List N. Amer. Lepid. no. 5021, 



1903. — Barnes and McDuxnovgh, Check List Lepid, Bor. Amer., 



no. 6804, 1917. 

 Cymolomia fasciatana Kearfott, Ins. New Jersey, 1910. p. 539. — Forbes, 



Memoir 08, Cornell Univ. Agr. Exp. Sta., 1924, p. 463. 



This species is quite common in the vicinity of Washin<^ton during 

 June and July. It is quite distinct from anything else in the genus 

 and is easily recognized by the characters given in the key and by 

 its peculiar genitalia. 



Male and female genitalia figured from specimens in National Col- 

 lection from Plummer Island, Md. (R. C. Shannon, June 7-14, 

 male) and Allegheny County, Pa. (F. Marloff. "VI-22-10," 

 female). 



Bursa of female with signum. 



Distribution. — Illinois, Iowa, Missouri, Kansas, Ohio, Pennsyl- 

 vania, Maryland, Virginia, North Carolina, District of Columbia, 

 New York, New Jersey, New Hampshire, Connecticut, Massachu- 

 setts, Quebec, Ontario. 



Alar expanse. — 13-16 mm. 



Types. — In Academy Natural Science, Philadelphia {fasciata- 

 nu7n) ; British Museum {decisana^ albofasciatum) . 



Type localities. — Pennsylvania {fasciatanum) ; " North America" 

 {decisana) ; Ohio {albofasciatum) . 



Food plant. — Rumex. 



46. EXARTEMA TROGLODANUM McDunnough 



(Figs. 103, 219, 405) 

 Exartema troglodanum McDunnough, Can. Ent., vol. 54, 1922, p. 37. 

 Very like olivaceanum in pattern and often confused with that 

 species. Easily distinguished by its male genitalia. 



