166 MNIOTILTIDA. 
nearly even and of about the same length as the wings. Three species are included in 
Myiodioctes at the present time; but a fourth was described by Wilson as Muscicapa 
minuta, which has not since been recognized. All are of migratory habits, passing the 
breeding-season in North America and the winter in Mexico and Central America, one 
only at this season migrating as far south as Ecuador. 
1. Myiodioctes canadensis. 
Muscicapa canadensis, Linn. Syst. Nat. i. p. 327°. 
Myiodioctes canadensis, Scl. P. Z. 8S. 1854, p. 111”, 1855, p. 143°; Sel. & Salv. Ibis, 1859, p. 11°; 
Lawr. Ann. Lyc. N. Y. vii. p. 468‘, ix. p. 95°; Baird, Rev. Am. B.i. p. 239°; Dresser, 
Ibis, 1865, p. 478"; v. Frantzius, J. f. Orn. 1869, p. 294°; Baird, Brew. & Ridgw. N. Am. B. 
i. p. 820°; Coues, B. Col. Vall. i. p. 823”. 
Euthlypis canadensis, Cab. J. f. Orn. 1860, p. 326%. 
? Myiodioctes cerulescens (Gm.), Lawr. Bull. U.S. Nat. Mus. no. 4. p. 16”. 
Supra cinereus, pilei plumis medialiter nigris; fronte, loris, cervicis lateribus et maculis pectoralibus nigris ; 
stria utrinque ante oculos, oculorum ambitu, gula et abdomine toto flavis, crisso albido; rostro corneo, 
mandibule basi et pedibus carneis. Long. tota 5:0, ale 2°6, caude 2:2, tarsi 0°75, rostri a rictu 0°58. 
Q mari similis, sed supra fuscescentior et maculis fuscis nec nigris distinguenda. (Descr. maris et femine ex 
Dueftas, Guatemala. Mus. nostr.) 
Hab. Eastern Nortu America, from Lake Winnipeg southwards® !°, Texas’.—Mexico?t 
(Verreaux®), tBario, Guichicovi, Isth. of Tehuantepec (Swmichrast *); GUATEMALA®, 
Retalhuleu, Alotenango, Duefias, Coban (0. S. & &. D. G); Costa Rica’, highlands 
(Hoffmann “), Dota Mountains (Carmiol®); Panama, line of railway (J/‘Leannan *). 
—CoLomBia?; Eouapor ?. 
The presence of this species in Mexico is not fully established, though we have little 
doubt that it was this bird that Mr. Lawrence called Myiodioctes cerulescens in his list 
of Prof. Sumichrast’s Tehuantepec birds. The other Mexican reference, resting as it 
does on the doubtful authority of Verreaux, requires further confirmation, as the bird 
has hitherto escaped the notice of all the many good collectors who have worked in 
Southern Mexico. In Guatemala I. canadensis is one of the well-known winter 
visitants, where it is to be found from September to the following spring at elevations 
ranging from 800 to 5000 feet above the sea, its chief resort being the second-growth 
woods. In Costa Rica and in the Isthmus of Panama it is also known as a winter 
immigrant ; but it passes at this season far beyond the limits of our fauna, being found 
in Colombia ® and in the province of Loxa on the southern confines of Ecuador 2. 
In North America it is known as a bird of passage in the eastern States during its 
spring and autumn migrations. A few stop to breed in the State of New York and in 
Massachusetts, the rest northward of these States; but the extension of the northern 
range of the species is not ascertained, but probably coincides with the limit of trees, 
or lat. 54° N.10, 
