72 TYRANNIDZ. 
the bird described and figured in the ‘ Fauna Boreali- Americana’ with its emarginate tail 
was E. minimus! Under this uncertainty we think it much better to use Audubon’s 
later name FE. trailli for this species; and as we wholly fail to distinguish between the 
eastern and western races called LZ. traiili and Ey trailli pusilius by recent American 
writers, we use the term £. trailli to include the whole series. Asa rule it is a larger 
bird than EF. minimus, and has the wing-bands of a brownish grey, the tail is even or 
slightly rounded, not emarginate as in HE. minimus. . trailli appears to be a very 
common bird during the summer months in North America; but we have not hitherto 
observed it in any numbers in Mexico or Central America, though specimens obtained 
as far south as Panama and even Ecuador seem referable to it. 
Our Mexican localities for this species include places near the sea-level and up to 
an elevation of 4000 or 5000 feet above the sea; but Sumichrast says it is a bird of the 
temperate region, where it is resident, being common around Orizaba in June and 
July 1”. The eggs of L. trailli are creamy white spotted with deep rusty brown. 
5. Empidonax minimus. 
Tyrannula minima, W. M. & S. F. Baird, Pr. Ac. Phil. 1843, p. 284°. 
Empidonax minimus, Baird, Mex. Bound. Surv., Zool., Birds, p. 9°; B. N. Am. p. 198°; Sel. 
P. Z. 8. 1859, p.384*; Cat. Birds Brit. Mus. xiv. p. 227°; Scl. & Salv. Ibis, 1859, p. 122°; 
P. Z. S. 1870, p. 837"; Dresser, Ibis, 1865, p. 474°; Baird, Brew., & Ridgw. N. Am. B. ii. 
p. 872°; Lawr. Bull. U. 8S. Nat. Mus. no. 4, p. 27°; Sennett, Bull. U. S. Geol. Surv. v. 
p- 405"; Coues, Birds N. W. p. 254"; Key N. Am. B. ed. 2, p. 442"; Ridgw. Ibis, 1886, 
p. 465 , Man. N. Am. B. p. 343”. 
Tyrannula pusilla, Sw. Faun. Bor.-Am. ii. p. 144, t. 467°? 
Empidonaz pectoralis, Lawr. Ann. Lyc. N. Y. viii. p. 402. 
Empidonaz gracilis, Ridgw. Pr. Biol. Soc. Wash. iii. p. 23°; Pr. U. S. Nat. Mus. viii. p. 571”. 
Precedenti similis et vix diversus, sed paulo minor, fasciis alarum albicantioribus et cauda sensim furcata. 
distinguendus. a 
Hab. EKastern Norra AmericA.—MeExico (Boucard), Sierra Madre above Ciudad 
Victoria, Xicotencal and Tampico in Tamaulipas, Aguas Calientes and Plains of 
San Luis Potosi (W. B. Richardson), Venta de Z opilote, Acaguasotla, Tepetlapa, 
Rincon and Tierra Colorada in Guerrero (Mrs. H. H. Smith), Orizaba (Botteri, 
F. D. G.), Atoyac (Mrs. H. H. Smith), Vera Cruz (F. D. G., Richardson), Playa 
Vicente (Boucard +), Chihuitan, Sta. Efigenia, Tapana, Guichicovi, Gineta Mts. 
(Sumichrast 1°), Peto in Yucatan (G. F. Gawmer), Merida, Tabi (F. D. G.), Holbox 
Mujeres and Cozumel Is. (@. F. Gaumer); British Honpuras, Orange Walk (G. F. 
Gaumer), Belize (O. S.°); Guatumaa, Coban, Duefias®, Escuintla, Retalhuleu (0. 8. 
& F. D.G.); Honpuras, San Pedro (G. UM. Whitely7) ; Panama (M*Leannan ""). 
It is exceedingly difficult from skins always to distinguish this species from F. trailli. 
Though the characters are laid down with considerable precision by the most recent 
writers on the subject, experience shows that they cannot always be depended upon to 
