BIRDS OF NORTH AND MIDDLE AMERICA. 



409 



Adult female.— Length (skins), 76-97 (88); wing, 41-50 (46.2); 

 tail, 31.5-40 (34.5); exposed ciilmen, 7.5-9 (8.2); tarsus, 14.5-16.5 

 (15.4); middle toe, 7.5-9 (8.1).« 



Nicaragua (Greytown; San C^arlos) Costa Rica (Turrialba; Angos- 

 tura; Bonilla; Carrillo; Jimenez; Barranca; Dota; Guayabal; Cari- 

 blanco de Sarapique; Azahar de Cartago; Pozo Azul de Pirris), 

 and Panama (Boquete; Divala; Bugaba; Calovevora; Santa Fe de 

 Veragua; Lion Hill Station). 



Tijranniscus parvus Lawrence, Ibis, iv, Jan., 18(52, 12 (Panama; coll. G. N. Law- 

 rence); Ann. Lye. N. Y., vii, 1862, 473 (Lion Hill, Panama R. R.); ix, 1868, 

 112 (Turrialba, Costa Rica). — Sclater and Salvin, Proc. Zool. See. Lend., 

 1864, 359 (Lion Hill); 1870, 843 (Panama; Costa Rica).— Salvin, Proc. Zool. 

 Soc. Lond., 1867, 147 (Santa Fe, Veragua; Turrialba, Costa Rica); 1870, 197 

 (Calovevora, Chitra, Boquete, Bugaba, and Volcan de Chiriqui, Panama); 

 Ibis, 1869, 315, in text (Costa Rica; crit). — Frantzius, Joum. fiir Orn., 1869, 

 307 (Costa Rica). — Boucard, Proc. Zool. Soc. Lond., 1878, 63 (Navarro, Costa 

 Rica).— RiDGWAY, Proc.U. S. Nat. Mus., vi, 1883, 414 (Pirris, Costa Rica).— 

 Sclater, Cat. Birds Brit. Mus., xiv, 1888, 132 (Angostura and Turrialba, Costa 

 Rica; Santa Fe, Calovevora, Bugaba, and Volcan de Chiriqui, Veragua; 

 Panama). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1888, 33. — 

 Richmond, Proc. U. S. Nat. Mus., xvi, 1893, 505 (Greytown and Rio 

 Escondido, Nicaragua). — Cherrie, Proc. U. S. Nat. Mus., xiv, 1891, 535 

 (Costa Rica; crit.).— Bangs, Proc. New Engl. Zool. Club, iii, 1902, 36 

 (Boquete, Panama, 4,000 ft.). 



[Tyranniscus] parvus Sclater and Salvin, Nom. Av. Neotr., 1873, 48. — Sharpe, 

 Hand-list, iii, 1901, 121. 



[Elainiajparva Gn\Y, Hand-list, i, 1869, 356, no. 5415. 



Tyranniscus rillissimus (not Elainea rilissima Sclater) Lawrence, Ann. Lye. 

 N. Y., ix, 1868, 111 (Angostura, Dota, and Barranca, Costa Rica). 



Tyranniscus vilissimus Frantzius, Journ. fnr Orn., 1869, 307 (Costa Rica). — 

 Sclater, Cat. Birds Brit. Mus., xiv, 1888, 132, synonymy, part. 



« Eleven specimens.. 



Averages of Panama six'ciincns compared with those from Cosla Rica and Nicaragua 

 are as follows: 



If all the birds of this species from Nicaragua, Costa Rica, and Panama are really of 



oii(> subspecies the individual variation in size is very remarkalile. Some sj)(>ciniens, 

 (■yen among those from Panama, are nearly as large as T. v. rilissimus from Guatemala; 

 hut all that 1 have seen are readily distinguished from tlie latter l)y the uuich jjaler and 

 less extensive yellowish color of the sides and flanks. 



