192 MIMICRY IN N. AMERICAN BUTTERFLIES 



instance, the last of the examples known in this 

 portion of the northern land-belt, is found on the 

 Pacific coast. The resemblances are somewhat 

 crude but of quite remarkable interest. 



Limenitis californica, because of its pattern and 

 colouring, is often placed in Adelplia, a large genus 

 with over seventy species all confined to tropical 

 America. Adelpha is separated from the closely 

 allied northern genus Limenitis by the hairiness 

 of the eyes in front. Californica is by this 

 character as well as its more northern range 

 associated with the heterogeneous assemblage 

 1 Limenitis ', which so much requires a thorough 

 revision. In adopting this view I accept the posi- 

 tion assigned to the species by Scudder in 1875. 1 



Closely allied to californica, of Oregon, Cali- 

 fornia, and Nevada, is L. bredowi (Hubn.) of 

 Arizona, Mexico, and Guatemala. A much 

 needed investigation is the determination 

 whether these two forms meet, and interbreed 

 along the line of contact. 



The southern species or sub-species bredowi, is 

 associated in Mexico and Guatemala with many 

 true species of Adelpha of which no less than 

 thirty-one extend into Central America. To 

 these it, and to a less extent the northern cali- 

 fornica, bear much likeness, especially to A. 

 dyonysa (Hew.), massilia (Feld), lerna (Hew.), and 

 fessonia (Hew.). This likeness is probably a 

 mimetic resemblance which extends beyond the 



1 Bull. Buffalo Soc. N. Sc. (Feb., 1875), 233. 



