NORTH AMERICAN LASPEYRESHNAE AND OLETHREUTINAE 91 



Distribution. — Massachusetts, New York, New Jersey, Pennsyl- 

 vania, Maryland, District of Columbia, Michigan, Missouri. 



Alar expanse. — 10-14 mm. 



Types. — In Academy Natural Science {viteana) ; Museum Com- 

 parative Zoology (vitivorana) . 



Type localities. — Pennsylvania (viteana) ; Hudson, Ohio (vitivor- 

 ana). 



Food plant. — Vitis. 



3. POLYCHROSIS MONOTROPANA, new species 

 (Fig. 366) 



Antenna, palpus, and face brownish ocherous; basal joint of an- 

 tenna blackish above. Head and thorax bro'WTiish ocherous dusted 

 with purplish scales. Fore wing with cost a markedly rounded near 

 apex; basal and antemedian areas metallic blue; a faint, narrow, 

 scarcely angulate, black band indicating outer margin only of usual 

 basal patch, disappearing toward dorsum; antemedian area with 

 central black gemination and a couple of faint white geminations on 

 costa, otherwise unmarked; median band wider on costa than dor- 

 sum, brown heavily dusted with black; outer costal spots broad, 

 brown dusted with black; subapical spot large, broadly oval, con- 

 nected at middle with termen and joining first and second outed 

 costal spots above, brown heavily dusted with black; triangular 

 pretornal spot brown, well dusted with black; cilia dark metallic 

 purple. Hind wings blackish fuscous; cilia white with very dark 

 basal band. 



Male genitalia of type figured. Harpe with short tuft from base 

 of sacculus; spine clusters jSpc^ and Spc~ well developed, arch be- 

 tween them wide, aedoeagus smooth. 



Female genitalia as in spiraeifoliana except genital plate some- 

 what larger and stouter. 



Alar expanse. — 9.5-10 mm. 



Type. — In American Museum. 



Paraty pes. —C?ii. No. 28029 U.S.N.M. 



Type locality. — Cincinnati, Ohio. 



Food plant. — Monotropa uniflora (larvae in seed capsules). 



Described from male type from the type locality (A. F. Braun, 

 '• VIII-24-07") ; and two female paratypes from Cabin John 

 Bridge, Md. (R. M. Fonts, Aug. 22, 1923), all reared. 



In genitalia not to be distinguished from the following species, 

 but with different wing shape, darker hind wings, and slightly dif- 

 ferent fore wing venation (8 and 9 more closely approximated at 

 base). 



54346—26 7 



