70 TYEANNID^. 



b'. Suhtus aut albidus aut vix flavicmis. 

 a". Supra umhrino-brunneus. 



2. Empidonax albigularis. (Tab. XL. fig. 2.) 



Empidonax albigularis, Scl. & Salv. Ibis, 1859, p. 122'; P. Z. S. 1864, p. 360 = ; Salv. Ibis, 1874,. 



p. 309'; Eidgw. Ibis, 1886, p. 463 '; Man. N. Am. B. p. 340'; Scl, Cat. Birds Brit. Mus. 



xiv. p. 223 ^ 

 Empidcmax axillaris, Ridgw. in Baird, Brew^., & Eidgw. N. Am. B. ii. p. 363 '. 



Supra sordide olivaceo-brunneus ; iiropj-gio riif escente tincto ; gutture albo ; pectore et cervicis lateribus 

 griseseenti-brunneis ; ventre et orisso pallide flavis ; alia et Cauda fusco-nigricantibus, iUis pallide brunneo 

 bif asciatis, secundariis extus albido anguste limbatis ; subalaribus ochraceis : rostri maxilla fusca, mandi- 

 buk pallida ; pedibus nigricantibus. Long, tota 4-75, alee 2-3, caudse 2-1, tarsi 0*6, rostri a rietu 0*6.^ 

 (Descr, maris ex Duenas, Guatemala. Mus. nostr.) 



Edb. Mexico, Acapulco and Dos Arroyos in Guerrero {Mrs. H. H. Smith), Huipulco 

 {Ferrari-Perez), Orizaba {Botten% Jalapa {M. Trujillo); Guatemala, Duenas 

 {0. S.\L. Fraser), Coban {0. S. & F. B. G.) ; Panama {M'Zeaman^). 



Tbis species was discovered by Salvin during his first expedition to Guatemala in 

 1858, when he obtained a single example near Duenas at an elevation of about 5000 

 feet above the sea. Other specimens were subsequently secured at the same place, and 

 also at Coban, but the bird is nowhere abundant. 



Its northern range reaches to the Mexican State of Vera Cruz, whence specimens 

 have been sent from several places, and also from the neighbourhood of the city of 

 Mexico. 



Southward we have no trace of it until we come to the Isthmus of Panama, where its 

 presence is attested by a single specimen procured by the late James M'Leannan near 

 Lion Hill Station. 



b". Supra olivascens aut cinerascens. 



3. Empidonax acadicus. 



Musdcapa acadica, Gm. Syst. Nat. i. p. 947 '. 



Empidonax acadicus, Dresser, Ibis, 1865, p. 475 = ; Baird, Brew., & Ridgw. N. Am. B. ii. p. 374 ' j 



Sennett, BuU. U. S. Geol. Surv. v. p. 405'; Coues, Birds N. W. p. 249'; Key N. Am. B. 



ed. 2, p. 441 " ; Ridgw. Ibis, 1886, p. 465 ' ; Man. N. Am. B. p. 342 ' ; Scl. Cat. Birds Brit, 



Mus. xiv, p. 228'. 

 Empidonax bairdi, Lawr. Ann , Lye. N. Y. vii. p. 327 (nee Scl.) *". 

 Empidonax griseigularis, Lawr. Ann. Lye. N. Y. vii. p. 471 ''. 



Supra olivaceus ; aJis nigricantibus, teetricibns fulvo-albido late terminatis, fasciis duabus formantibus ; secun- 

 dariis extrorsum paUide olivaceo limbatis ; cauda nigricanti-olivaceo vix limbata : subtus albus ; pectore 

 griseo ; hypoehondriis olivaceo lavatis ; subalaribus pallide falvis : rostri maxilla nigricante, mandibula 

 pallida ; pedibus obscure corylinis. Long, tota 5-0, alse 2-7, caudae 2-2, tarsi 0-5, rostri a rictu 0-6. (Deser. 

 exempl. ex Insula Euatan, Honduras. Mus. nostr.) 



Eah. NoETH America, Middle and Eastern States. — Mexico, Yucatan ; Honduras^ 



