219 



Nearest to //. anicoalbida Walsingham. but darker yellow with 

 darker markings and at once distinguislied from it by the dark hind- 

 wings. 



HvsTEROSiA KMLviPLiCANA Walsingham. PI. XXXII, Fig. 10. 



1879, 111. I.ep. Met. Brit. Mus.. Vol. IV, p. 25, PI. LXVI, Fig. 2, 3. 

 n. syns : 



Hysterosia aegrana Walsingham. 



1879, 111. Lep. Het. Brit. Mus., Vol. IV, p. 26, PI. LXVI, Fig. 4. 



Hysterosia homonana Kearfott. 



1907, Can. Fnt., \'ol. XXXIX, p. 84. 



Hysterosia komouana Kearfott. 



1907, Can. Ent., XXXIX, p. 121. 



A very large and perfect series from the type locality of Wal- 

 singham's species show sufficient variation in the ground color of the 

 forewings to indicate that the two names fiilviplicana and aegrana 

 apply to only one species of which the males normally are the larger 

 and white, while the females are ochreous and much smaller, but both 

 sexes vary and intergrade to some extent and enough to account for 

 Walsinghani's description and figures of the supposed two species. 



Lord Walsingham evidently had some suspicion of this, but his 

 short series did not enable him to connect the extremes in coloration 

 and size. In spite of considerable collection in the type region only 

 one species of this genus has been turned up and only one seems to 

 occur there. 



Kearfott's two names Hysterosia homonana and H. komonana 

 apply to small varieties of male specimens of this same species as his 

 types prove ; genitalia slides of cotypes of both his species have been 

 made and are found to be alike and identical with those of f tiki plic ana 

 Walsingham. 



The synonymy is augmented by the names refuga Meyrick and 

 fermcntata Meyrick, supplied with the idea of supplanting Kearfott's 

 "nonsense " names. 



It is further added to by Lord Walsinghani's identification of the 

 European Hysterosia inopiana Stephens, from California, which in 

 our opinion was based on a female of the variable fnlviplicana, this 

 European name should be discontinued in our North American List 



