174 MNIOTILTID^. 



B. leucopygius does not appear to be a common bird, as but few specimens have 

 reached us. It, like many of its congeners, probably lives in forests up to an elevation 

 of about 3000 feet. M'Leannan always found it on the banks of a brook in very 

 retired places in the forest 2. Mr. E. Bartlett also says of B. uropt/gialis that it keeps 

 close to brooks, uttering at intervals a shrill note. 



c. Pileus castaneus, genm aut nigrce aut castanece. 



4. Basileuterus melanogenys. (Tab. X. fig. 3.) 



Basileuterus melanogenys, Baird, Rev. Am. B. i. p. 348'; Lawr. Ann. Lye. N. Y. ix. p. 95" ; Salv. 



P.Z. S. 1870, p. 183 ^ 



Supra obscure olivaceus, pileo castaneo utrinque nigro marginato, superoiliis elongatis albis, loris et capitis 

 lateribus nigris; subtus sordide albus, bypochondriis fusco-olivaceis; rostri maxilla corylina, mandibula 

 sordide albida; pedibus corylinis. Long tota 5-0, alffi 2-4, caudse 2-2, rostri a riotu 0-6, tarsi 0-95. 

 (Desor. exempl. ex Irazu, Costa Bica. Mus. nostr.) 



Edb. Costa Rica, San Jose {v. Frantzius ^ ^), Volcan de Irazu {Rogers) ; Panama, 

 Volcan de Chiriqui [Arci ^). 



A very distinct species, without near allies, which is only known to us from specimens 

 sent in collections formed in the highlands of Costa Eica and in the adjoining district of 

 Chiriqui. Nothing is recorded of its habits. 



5. Basileuterus belli. 



Muscicapa belli, Giraud, Sixteen B. Texas, t. 4. f. 1 \ 



Basileuterus belli, Scl. P. Z. S. 1855, p. 65 "; 1859, p. 374'; Cat. Am. B. p. 35 *; Scl. & Salv. Ibis, 

 1860, p. 31 = ; Baird, Rev. Am. B. i. p. 250°; Sumichrast, Mem. Bost. Soc. N. H. i. p. 546'. 

 Basileuterus chrysophrys, Bp. Consp. i. p. 314 (ex Licht.)^; Scl. P. Z. S. 1857, p. 203'. 



Supra olivaceus, pileo et genis laete castaneis, iUo nigro utrinque marginato, superciliis elongatis et corpora 

 subtus flavis, bypoohondriis olivaceo indutis ; rostro obscure corneo, pedibus paUide cameis. Long, tota 

 5-0, alee 2-28, caudse 2-2, rostri a rictu 0-55, tarsi 0-8. (Desor. exempl. ex Jalapa, Mexico. Mus. nostr.) 



5 mari omnino similis. 



Hab. Mexico, Eeal Ariba^, Lagunas {Beppe), Jalapa {SalU^, Hoge), Orizaba (Botteri*), 

 temperate region of Vera Cruz (Sumichrast ''), Llano Verde and Totontepec 

 (Boucard^); Guatemala, Volcan de Fuego, Cohan ^^ {O.S. & F. D. G.). 



This species, again, was described in 1840 by Giraud as from Texas, but has not since 

 been found nearly so far north ; so that this locality requires further confirmation. The 

 first specimens ever obtained were doubtless those in the Berlin Museum, sent from 

 Eeal Ariba and Lagunas by Deppe before the year 1830, to which Lichtenstein attached, 

 unfortunately in manuscript only, the appropriate name of Sylvia chrysophrys. This 

 name remained unpublished until Bonaparte used it in his ' Conspectus,' in 1850, too 

 late for adoption, as Mr. Sclater long ago pointed out ^. 



