702 Annals of the Carnegie Museum. 



de Asseri, San Jose, and Carrillo). — Bangs, Auk, XXIV, 1907, 302 (Boruca, 

 five specimens, May [Underwood]). 



U. S. Nat. Museum: Santa Maria de Dota, May (Basulto). 



Bangs Collection: Carrillo, Sept. 12; San Jose, Oct. 14; San Pedro, Oct. 



15 (Underwood). 

 Fleming Collection: Juan Vinas, August (Underwood). 

 Carnegie Museum: Volcan de Turrialba, Buenos Aires, El Hogar, La 



Hondura. Seven skins. 



This species is evidently not a migrant in Costa Rica, remaining there 

 the year round and breeding. It is not a common bird anywhere, but is 

 most abundant on the Pacific lowlands or rather in the foothills, especially 

 in the Terraba region. 



In habits it is very similar to the Wood Pewee, and around Boruca it 

 was found in the scrubby growth along the edges of the "sabanas " or 

 along small creeks in the hills. 



462. Myiochanes richardsoni richardsoni (Swainson). 



Tyrannula richardsonii Swainson, Fauna Bor.-Am., II. 1831, 146, pi. 46, lower 



fig. (Cumberland House, Saskatchewan, Canada). 

 Contopus richardsonii Cherrie, Auk, VII, 1890, 334 (San Jose, Oct. 27); IX, 



1892, 251 (arrives later and leaves earlier than C. virens); Expl. Zool. en 



C. R., 1890-1, 1893, 34 (Buenos Aires de Terraba). 

 Contopus richardsoni Lawrence, Ann. Lye. N. Y., IX, 1868, 115 (San Jose 



[Frantzius], Frailes [J. Carmiol], Barranca [F. Carmiol]). — Frantzius, Jour. 



fur Orn., 1869, 308 (Costa Rica). — Sclater, Cat. Birds Brit. Mus., XIV, 



1888, 239 (Irazu. district [Rogers], San Jose [Frantziusl). — Salvin and 



Godman, Biol. Centr.-Am., Aves, II, 1889, 85 (Costa Rican references). 

 Myiochanes richardsonii richardsonii Ridgway, Birds N. and Mid. Amer., IV, 



1907, 521 (western North America, south in winter through Mexico and 



Central America, to northern Bolivia). 



Bangs Collection: La Cedral de Asseri, Sept. 8; San Jose, Oct. 7 (Under- 

 wood) . 

 Fleming Collection: Carrillo, Oct. and Nov.; San Jose, Oct. (Underwood). 

 Carnegie Museum: Volcan de Irazu, Apr. 3; La Hondura, Sept. 25 to 

 Oct. 1; Volcan de Turrialba, Oct. 21 (Carriker). Four skins. 

 This species has about the same range in Costa Rica as the following, 

 M. virens, but is more frequently met at high altitudes in company with 

 Nnttallornis borealis. It is also found in the thick forest more frequently 

 than M. virens. Mr. Cherrie says that it arrives later and leaves sooner 

 than M. virens, but my experience does not lead to that conclusion, and I 

 think it both arrives and departs at about the same time. 



