174 MNIOTILTID A. 
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®. Mr. E. Bartlett also says of B. uropygialis that it keeps 
close to brooks, uttering at intervals a shrill note. 
c. Pileus castaneus, gene aut nigre aut castanee. 
4. Basileuterus melanogenys. (Tab. X. fig. 3.) 
Basileuterus melanogenys, Baird, Rev. Am. B. i. p. 2487; Lawr. Ann. Lyc. N. Y. ix. p. 95°; Salv. 
P. Z. 8. 1870, p. 183°. 
Supra obscure olivaceus, pileo castaneo utrinque nigro marginato, superciliis elongatis albis, loris et capitis 
lateribus nigris; subtus sordide albus, hypochondriis fusco-olivaceis; rostri maxilla corylina, mandibula 
sordide albida; pedibus corylinis. Long tota 5:0, ale 2°4, caude 2-2, rostri a rictu 0°6, tarsi 0°95, 
(Descr. exempl. ex Irazu, Costa Rica. Mus. nostr.) 
Hab. Costa Rica, San Jose (v. Frantzius12), Volcan de Irazu (Rogers); Panama, 
Volcan de Chiriqui (Arcé*). 
A very distinct species, without near allies, which is only known to us from specimens 
sent in collections formed in the highlands of Costa Rica 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. 17. 
Basileuterus belli, Scl. P. Z. 8S. 1855, p. 65°; 1859, p. 874°; 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. 1. p. 814 (ex Licht.)*; Scl. P. Z. S. 1857, p. 202°. 
Supra olivaceus, pileo et genis lete castaneis, illo nigro utrinque marginato, superciliis elongatis et corpore 
subtus flavis, hypochondriis olivaceo indutis; rostro obscure corneo, pedibus pallide carneis. Long. tota 
5°0, alee 2°28, caude 2-2, rostri a rictu 0°55, tarsi 0°8. (Descr. exempl. ex Jalapa, Mexico. Mus. nostr.) 
© mari omnino similis, 
Hab. Mexico, Real Ariba’, Lagunas (Deppe), Jalapa (Sallé°, Hoge), Orizaba (Botteri*), 
temperate region of Vera Cruz (Sumichrast’), Llano Verde and Totontepec 
(Boucard*); Guaremata, Volcan de Fuego, Coban >$ (0. 8. & 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 
Real 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 2. 
