66 TYRANNIDZ. 
MITREPHANES. 
Mitrephanes, Coues, Bull. Nutt. Orn. Club, vii. p. 55 (1882); Scl. Cat. Birds Brit. Mus. xiv. 
p. 218, vice 
Mitrephorus, Scl. P. Z. 8. 1859, p. 45 (nec Schonherr). 
The genus Mitrephorus was founded in 1859 by Mr. Sclater upon WM. pheocercus of 
the Mexican and Guatemalan highlands, but the name being preoccupied, Mdctrephanes 
was substituted for it by Dr. Coues in 1882. 
According to Mr. Sclater the genus includes five species, as he, following Mr. Ridg- 
way, includes Myiobius capitalis and Empidonasz atriceps in it, as well as M. ochracet- 
ventris of Peru, a bird we have not yet examined. J. capitalis and E. atriceps we 
leave in the genera in which they were originally placed, so that we have only two 
species to deal with, viz. I. phwocercus, already mentioned, and MW. aurantiiventris of 
Costa Rica and the State of Panama. 
In many respects I. phewocercus resembles Empidonax, but the bill is narrower, the 
margins not so convex, and with a well-defined concave curve towards the tip; the 
rictal bristles are more fully developed, the nostrils more distinctly exposed ; there is, 
moreover, a conspicuous crest formed of the prolonged occipital feathers, and the tail 
is longer in proportion to the wings, thus, tail >3%; wing, and in Empidonax traillt 
<2 wing. 
1. Mitrephanes pheocercus. 
Tyrannula, sp. ?, Scl. P. Z. S. 1856, p. 296, no. 104’. 
Empidonaz, sp.?, Scl. P. Z. 8. 1858, p. 302, no. 82°. 
Mitrephorus pheocercus, Scl. P. Z.S. 1859, pp. 44°, 366*, 384°; Scl. & Salv. Ibis, 1859, p. 122°; 
Sumichrast, Mem. Bost. Soc. N. H. i. p. 5577; Lawr. Mem. Bost. Soc. N. H. ii. p. 287° 
Salv. Cat. Strickl. Coll. p. 313°. 
Mitrephanes pheocercus, Scl. Cat. Birds Brit. Mus. xiv. p. 210”. 
| Mitrephanes pheocercus tenuirostris, Brewst. Auk, 1888, p. 187 ”. 
Supra obseure olivaceus, capite obscuriore; loris rufo-albidis; alis et cauda fusco-nigricantibus; alarum 
tectricibus fulvo terminatis: subtus ferrugineis; mento, abdomine imo, pallidioribus: rostri maxilla 
nigricante, mandibula pallida; pedibus obscure corylinis. Long. tota 5:0, alee 2-7, caude rect. med. 2°25, 
rect. ext. 2°45, tarsi 0°55, rostri a rictu 0°55. (Descr. exempl. ex Jalapa. Mus. nostr.) 
Juv. supra saturate brunneis, capite nigricante, plumis omnibus fulvo limbatis. 
Hab. Mzxico, Oposura in Sonora, Presidio near Mazatlan (J. C. Cahoon), Mazatlan 
(Bischoff'®, Grayson ®), Ciudad in Durango (Forrer), Sierra de Valparaiso in Zaca- 
tecas (W. B. Richardson), Amula and Omilteme in Guerrero (Mrs. H. H. Smith), 
Tetelco and Ixtapalapa (Ferrari-Perez), State of Vera Cruz (Sumichrast"), Jalapa 
(de Oca*, Hoge, M. Trujillo), Cofre de Perote (MM. Trujillo), Talea (Boucard), 
Cordova (Sallé 1), Orizaba (f. D. G.), Oaxaca (Fenochio) ; Guatama.a (Constancia ®, 
Skinner ®), Coban, Volcan de Fuego, Duefias, Ridge above Totonicapam, Guezalte: 
nango (0. 8. & F. D. G.). 
