Food-plant of Callophrys avis. 411 



Amelie-les- Bains as the crow flies, seemed to be entirely 

 uninhabited by C. avis. Of course this may not be so, my 

 last two years' researches at Hyeres would of course lead 

 to the erroneous conclusion that the species does not occur 

 there, and further examination may show that it occurs 

 though rarely in the Tet Valley. 



Vernet-les-Bains is in the Valley of the Tet, but much 

 higher up than the Coo'iaria ground, or than one would 

 expect C. avis to appear at. 



P.S. — Mr. H. Powell writes under date April 7, 1912, 

 that over a dozen C. avis, of which he took some, have 

 been taken at Cap Negre, " all near one place flying round 

 and settling in large Arbutus trees ; " he also took an odd 

 specimen some distance up the hill near Cavaliere, flying 

 round an Arhut^ts. The butterflies are reported as being 

 confined to a very small area. This seems to give the 

 required confirmation to the conclusion I drew from my 

 observations that the food-plant of C. avis on the Riviera 

 is Arbutus. 



It is, of course, quite possible there may be still another 

 one. 



