242 



identical (PI. XXXIV, Fig. 6). The names may with atlvantage be 

 retained for the extreme varieties. 



Ethmia DiSLOSTKifiELLA Chambers. PI. XXVI. Fig. 14; PI. XXVII. 

 Fig. 10; PI. XXXIV, Fig. 9. 



1877, Bull. U. S. Geol. Surv., Vol. Ill, p. 122. 

 n. syn: 



Ethmia subcaerulea Walsingham. 



1880, Proc. Zool. Soc. Lond., p. 89. 



Very large series of discostrigella show considerable variation and 

 all gradations to the form described by Walsingham are found. The 

 genitalia are identical. 



Ethmia apicipunctella Chambers. PI. XXVI, Fig. 15 ; PI. XXXVI, 



Fig. 7. 



1875. Can. Ent., Vol. VII, p. 8. 

 n. syn : 



Ethmia zavalla Busck. 



1915. Proc. Ent. Soc. Wash., Vol. XVII, p. 84. 



PI. XXVI, Fig. 15; PI. XXXVI, Fig. 7. 



Large series prove this synonym beyond question. The genitalia 

 of the species are shown on PI. XXXVI, Fig. — . 

 Ethmia hagenella Chambers. PI. XXVII, Figs. 7, 8; PI. XXXV, 



Fig. 4. 



1878, Bull. U. S. Geol. Surv., IV, p. 80. 

 n. syn : 



Ethmia josephinella Dyar. 

 1902, Jour. N. Y. Ent. Soc, X, p. 205. 



The two forms of pattern grade into each other and represent 

 only one species; the genitalia are shown PI. XXXV, Fig. 4. 



Ethmia geranella. n. sp. PI. XXVII, Fig. 3; PI. XXXIV, Fig. 7. 

 Labial palpi whitish gray, sprinkled with black; second joint with a broad 

 ill-defined black annulation near the tip; terminal joint with a narrow ill-defined 

 annulation near the base and another near apex. Face and head whitish 

 strongly overlaid with black and dark brown scales. Thorax blackish with a 

 few white scales intermixed and with the tips of patagia white. Forewings 

 narrow, apex pointed, termen very oblique; bluish white overlaid with dark 

 brown scales; a broad longitudinal streak through the middle of the wing from 



