416 Hans Graf von BerlepscJi : 



In Rio Grande do Sul this species seems to interbreed with 

 the otherwise quite different E. parvirostris Pelz. As yet 1 

 have not seen specimens from Bahia with traces of white in 

 the crown. 



29. Elaenia feaxtzii Lawr. 



Elainea frantzii Lawr., Ann. Lye. IN". H. New York, VIII. 

 (1865), p. 172 (descr. specim. ex San José, Costa Rica, typ. in 

 Mus. Smiths. Inst,, no. 39,047) ; id., ibid., IX. (1868), p. 

 112 (San José, Barranca, Dota) ; Frantz, J. f. 0., 1869, p. 

 307 ; Salv., P.Z.S., 1870, p. 197 (Y. de Chiriqui) ; Sci., 

 P.Z.S., 1870, p. 835 ; Sci . et Salv., Nomencl. Av. Neotr. 

 (1871), p. 49 ; Boucard, P.Z.S., 1878, p. 63 (Vole. Jrazu) ; 

 Ridgw.,Proc.U.S. Nat. Mus.,V. (1883), p. 496 (Costa Rica) ; 

 Nutting-, op. cit. VI. (1884), p. 393 (Omotepe, Nic- 

 araguaf; Sci., Cat. B. Brit, Mus., XIV. (1888), p." 145, 

 part, ; Salv. et Godm., Biol. Central. Am. Aves, II. (1888), 

 p. 36 pt. ; Allen, Bull. Am. Mus. N. H., New York, 

 II. (1889), p. 204 pt, ; Sharpe, Handlist, III. (1901), p. 124, 

 part. 



Elaenia frantzii Bangs, Proc. New England Zool. Club, III. 

 (1902), p. 37 (Boquete, Volcan Chiriqui). 



E. media, supra obscure olivacea, pilei medii plumis inter- 

 dmn basi albo varus ; subtus flavido-olivacea, abdomine medio 

 navicanti-albo, tectricibus alarum superioribus late albescente 

 terminatis (itaque bifasciatis), tertiariis late albo marginatis. 



Al. 82-76, caud. 72-68 mm. 



Habitat : Guatemala : Dueiias (Sal vin and Godman), Volcan 

 de Agua, Barranco Hondo, Medio Monte, S. Pedro Martyr 

 (O. Salvili). Nicaragua: Omotepe Island (Nutting). Costa 

 Rica : San José (Frantzius, Nutting), Barranca, Dota 

 (Carmiol), Irazu (Rogers, Nutting). Veragua : Chiriqui 

 (Arce, Brown), Boquete (Brown). 



30. Elaenia fraxtzii pudica Sci. 

 Elainea, sp. ign., Sci. et Salv., P.Z.S., 1870, p. 781 (Merida), 

 cf. ibid., nota. 



