NORTH AMERICAN LASPEYRESIINAE AND OLEOiHREUTINAE 93 



Male genitalia with long tuft from base of sacculus of harpe; 

 spine clusters Spc^ and Sfc'^ strongly developed ; arch between them 

 wide; aedoeagus smooth. 



Male and female genitalia figured from reared specimens in Na- 

 tional Collection from Washington, D. C. ("3257" male type) and 

 Falls Church, Va. {Rhus, Hopk. U. S. No. 12196, Heinrich, female). 



Distribution. — District of Columbia, Virginia, Pennsylvania, New 

 York, New Jersey, Rhode Island, Connecticut, Maine, Ohio. 



Alar expanse. — 9-12 mm. 



Type. — In National Collection. 



Type locality. — Washington, D. C. 



Food plants. — Rhus, Kalmia, Cornus. 



6. POLYCHROSIS YARACANA Kearfott 

 (Fig. 370) 



Polychrosis yaracana Kearfott, Traus. Amer. Ent. Soc, vol. 33, 1907; 



p. 5. — Babnes and McDunnough, Check List Lepid. Bor. Amer., no. 



6784, 1917.— Forbes, Memoir 68, Cornell Univ. Agr. Exp. Sta., 1924, 



p. 472. 

 Polychrosis signifera Meyrick, Ent. Mo. Mag., vol. 48, 1912, p. 34. 



Easily recognized by white hind wing with smoky shade at apex 

 and white scaling on fore wing. Male genitalia with long tuft from 

 base of sacculus of harpe; spine cluster Spc^ and Spc- well de- 

 veloped, arch between them narrow ; aedoeagus smooth. 



Male genitalia figured from specimen in National Collection from 

 Oak Station, Pennsylvania (F. Marloff, " VI-2-12"). Female geni- 

 talia like those of spiraeifoliana. 



Distribution. — Ohio, Pennsylvania, New York, Ontario. 



Alar expanse. — 9-11 mm. 



Type. — In American Museum. 



Type locality. — Cincinnati, Ohio. 



7. POLYCHROSIS SPIRAEIFOLIANA Heinrich 



(Figs. 178, 360) 



Polychrosis spiraeifoliana Heinrich, Proc. Ent. Soc. Washington, vol. 25, 

 1923, p. 106.— Forbes, Memoir 68, Cornell Univ. Agr. Exp. Sta., 1924, 

 p. 472. 



Male genitalia with moderately long tuft (half the length of that 

 of rhoif't'uctana) from base of sacculus of harpe; spine clusters Sjk'^ 

 and Spc- well developed; arch between them angulate but wide; 

 sacculus but slightly rounded : aedoeagus with slight tooth on side, 



Male genitalia figured from type; female from paratype in Na- 

 tional Collection from Hampton", N. H. (S. A. Shaw, " 8-9-19(r>.'')> 



