NOETH AMERICAN EUCOSMINAE. 137 



6. Euryptychia Clemens. Genotype. — {Eurytychia saligneana 

 Clemens) Hedya scudderiana Clemens. 



Characters as in Eucosma except : 



Vein 11 of fore wing normally from well before middle of cell. 



Male genitalia with small rudimentar}?^ clasper on harpe ; no strong 

 anal spine or spines on cucuUus ; neck sometimes densely clothed with 

 hair-like spines. 



As here defined represents the lowest and most primitive group in 

 the main EucosTna stem. 



KEY TO THE SPECIES OF EPIBLBMA. 



For the following new species not included in this key, see Appendix : gratuitana and 

 periculosana. 



1. Fore wing with termen convex ; veins 3 and 4 widely separated at termen 2 



Fore wing with termen not convex ; veins 3 and 4 approximate at ter- 

 men or but slightly separate, and parallel from just beyond base 6 



2. Termen of fore wing decidedly slanting ; fore wings rather narrow 3 



Termen of fore wing rounded, but not slanting ; fore wings broad 4 



8. Head whitish gray ; fore wing gray white with dark markings ochreous 



fuscous (32) ahbreviatana. 



Head dark fuscous; fore wing dull fuscous marked by indistinct lines of 

 black scales and with a somewhat obscured mid-dorsal white patch. 



(2) serangias. 



4. Fore wing dark brown with a white patch on middle of dorsal margin. 



(23) walsinghami. 



Fore wing pale grayish fuscous, with a triangular dark-brown patch on 



dorsal margin near base 5 



5. Fore wing with a small triangular brown spot on dorsum before tornus ; a 



brown band from middle of costa to end of cell (30) brightonana. 



Fore wing without such, but with a large triangular outwardly curved brown 

 patch on costa near apex (31) tandana 



6. Fore wing dark brown, with a distinct well-defined white patch on dor- 



sum near middle 7 



Fore wing otherwise 13 



7. White patch on dorsal margin near middle fusing on the margin with 



white ocelloid patch (26) dorsisuffusana. 



White patch on dorsal margin near middle not so fusing with ocelloid 

 patch 8 



8. White patch on dorsal margin near middle outwardly curved or produced 



above into an outwardly pointing hook 9 



White patch on dorsal margin square or triangular 10 



9. White dorsal patch marked with fine median fuscous lines or line. 



(1) boxcana. 

 White dorsal patch unmarked (29) otiosana. 



10. Ocellar area of fore wing a distinct white patch (16) kennebecana. 



Ocellar area of the ground color, or with little white scaling 11 



11. Mid-dorsal white patch large, square and extending nearly to costa. 



(14) tripartitana. 

 Mid-dorsal white patch not extending above middle of wing 12 



12. Alar expanse under 15 mm 13 



Alar expanse over 16 mm (24) infelix. 



