NOETH AMERICAN LASPEYRESIINAE AND OL.ETHREUTINAE 143 



Alar expcmse. — 15-22 mm. 

 Type.— Lost (?). 

 Type locality. — Pennsylvania. 



Food plants. — Prunus serotina, Comus, Qitercus, Glethra alnifoUa., 

 Juglans (Walnut). 



16. EXARTEMA CLAVANUM (Walker) 



(Figs. SO, 210) 



Carpocapsa clavana Walker, Cat. Lepid. Heter. Brit. Mus., vol. 28, 1863, 



p. 395. 

 Exartema inornatanum Fernald (not Clemens), in Dyar List N. Amer. 



Lepid., no. 5024, 1903. — Barnes and McDunnough, Check List Lepid. 



Bor. Amer., no. 6807, 1917. 

 Cymolomia clavana Forbes, Memoir 68, Cornell Univ. Agr. Exp. Sta., 1924, 



p. 469. 



This species has been listed for a long time as a synonym of inor- 

 natanum., and specimens have been most frequently placed under that 

 name, though I have also seen several mixed with s]:)ecimens of 

 nigranum Heinrich. Some forms of the latter are very hard to 

 separate from clavanum on pattern; but can be readily distinguished 

 by the genitalia. Walker's species separates readily from inor- 

 natanufn on both structure and color. It has the same pattern, but 

 lacks the distinct reddish scaling on thorax and lower inner angle 

 of fore wing so characteristic of Clemens' species. 



Harpe of male genitalia figured from specimen in National Col- 

 lection from Essex County, N. J. (Kearfott, " 7-22-99 ") . In general 

 shape and structure tlie male genitalia are very like those of zelleri- 

 anum. Minor differences in the spining of the harpes of the two 

 species are shown in figures 63 and 80. Female genitalia figured 

 from specimen in National Collection from Onaga, Kans. 



Bursa of female without signum. 



Distrihution. — Kansas, Iowa, Illinois, New York, New Jersey, 

 Massachusetts, Quebec. 



Ala7' expanse. — 15-17 mm. 



Type. — In British Museum, 



Type locality. — "North America." 



17. EXARTEMA MEDIOPARTITUM Heinrich 



(Fig. 72) 



Exartema mediopartitum Heinrich, Proc. Ent. Soc. Washington, vol. 25, 



1923, p. 113. 



Cymolomia mediopartita Forbes, Memoir 68, Cornell Univ. Agr. Exp. Sta., 



1924, p. 465. 



Similar in pattern to cor^jlanum Fernald, but lacking the ferrugin- 

 ous fore wing cilia of the latter. Easily distinguished by the spin- 



