42 TYRANNIDA. 
value, and in themselves variable, so much so that they cannot always be depended 
upon. Thus a specimen from Coban and one from Minas Geraes are not distinguishable 
specifically, and we see no reason why this species should be separated any more than 
Tyrannus melancholicus, which has even a wider range. 
Regarding dimensions, to which Mr. Sclater calls attention 2, no dependence can be 
placed, as we have Mexican specimens fully as large as others from Brazil; the smallest 
of our series being from Costa Rica and the State of Panama. 
The name JM. similis was applied by Spix to the bird of the Amazons valley}. 
Mr. Sclater, who admits the distinction between the bird of South-east Brazil (MM. ery- 
thropterus) and that of the rest of ‘Tropical America (exclusive of Guiana) with con- 
siderable reluctance, calls a specimen from Pebas in the Amazons valley E. texensis; 
it follows that whatever the ultimate status of the South-Brazilian bird may be, all the 
rest should take Spix’s title. We therefore apply E. similis to the Mexican and Central- 
American bird without hesitation. 
The name Zyrannula texensis was given by Giraud to a bird supposed to have been 
shot in Texas, and the species has been admitted into the North-American fauna on 
the strength of this statement. We have not as yet been able to trace it beyond 
Aldama in Tamaulipas, that is the edge of the lowland tropical forest. On the Pacific 
side of Mexico, Mazatlan is our most northern record. In Central Mexico and the 
southern side of the Rio Grande valley we have not yet traced it. 
M. similis is a very familiar bird throughout our region, being found everywhere in 
open places from the sea-level to a height of 5000 or 6000 feet in the mountains. It 
is noisy and conspicuous, like the equally abundant Tyrannus melancholicus. 
At Duefias, in Guatemala, it builds in the month of May a nest of small roots and 
strong grass of light construction and covered over, having a large hole in the side. 
The eggs, generally three in number, are of a rich creamy white, thinly spotted at the 
obtuse end with red; they measure, axis 10°25 lines x 8 lines 29, 
3. Myiozetetes granadensis. 
Myiozetetes granadensis, Lawr. Ibis, 1862, p. 11'; Ann. Lyc. N. Y. vii. p. 473°, ix. p. 112°; Sel. 
& Salv. P.Z.S. 1864, p. 359‘, 1867, p. 279°; v. Frantz. J. f. Orn. 1869, p. 307°; Salv. 
Ibis, 1872, p. 3187; Nutting & Ridgw. Pr. U. S. Nat. Mus. vi. pp. 884°, 402°; Scl. Cat. Birds 
Brit. Mus. xiv. p. 163”. 
Precedenti similis, sed capite summo griseo nec nigricante, superciliis albis absentibus distinguendus. (Deser. 
maris ex San Pablo, Panama. Mus, nostr.) 
Hab. Nicaragua, Chontales (Belt’), Los Sabalos® and Sucuya ® (Nutting), Blewfields 
River (Wickham ®); Costa Rica (Van Patten), Orosi (Carmiol 8 6); Panama, Chi- 
riqui (Arcé), Lion Hill (M*Leannan } 2 *).—SoutH America, Colombia, Ecuador, 
and Peru. 
M. granadensis can readily be distinguished from either of the preceding species by 
