BASILEUTERUS. 171 
behind the eye. Specimens from Ecuador and Venezuela have the black postocular 
patch the smallest, and the palest and greyest crown. Costa-Rica and Panama 
examples agree very closely with Colombian and Bolivian; but the crown is rather 
more tinged with reddish orange. The difference is too slight to justify the separation 
of these birds; and we prefer to look upon Basileuterus bivittatus as a widely ranging 
somewhat variable species. Its range in altitude is probably not great, but restricted 
to about 3000 or 4000 feet above the sea-level. As we have never yet received 
specimens from low-lying land, the forests of mountain-slopes are its home. Fraser, 
‘who obtained specimens at Nanegal (4000 feet)+ and elsewhere, says? that the irides 
are white, the bill nearly black, the legs and feet flesh-colour, and that it is a pretty 
songster. D’Orbigny, who found it at Carcuata in Bolivia, says that it inhabits the 
wooded ravines of the eastern cordillera of La Paz, and that its habits somewhat 
resemble those of the Tits (Paride). Tschudi, who met with it in the sugar-plantation 
of San Pedro near Lurin, Peru, says that it has a short, intermittent, but loud song. 
Of its habits in Central America we have nothing to record; several of our references 
given above !0 11 merely refer to Mr. Lawrence’s description of B. melanotis. 
2. Basileuterus culicivorus. 
Sylvia culicivora, Licht. Preis-Verz. mex. Vog. p. 2; cf. J. f. Orn. 1863, p. 57%. 
Basileuterus culicivorus, Cab. Mus. Hein. i. p. 17°; Bp. Consp. i. p. 313°; Baird, Rev. Am. B. i. 
p. 245‘; Lawr. Ann. Lyc. N. Y. ix. p. 95°; Sumichrast, Mem. Bost. Soc. N. H. i. p. 546°; 
Salv. P. Z. S. 1870, p. 183%. 
Muscicapa brasieri, Giraud, Sixteen B. Texas, t. 6. f. 2°. 
Basileuterus brasieri, Scl. P. Z. S. 1855, p. 66°; 1856, p. 292°; 1859, p. 874"; Scl. & Salv. Ibis, 
1860, p. 274". 
Supra olivaceo-cinereus, pileo medio sordide aurantiaco-flavo, utrinque late nigro marginato, capitis lateribus 
olivaceis cinereo vix tinctis, superciliis indistinctis flavido-olivaceis, ciliis ipsis flavis, loris pone oculos 
nigris; subtus flavus, hypochondriis olivaceo indutis; rostro corylino, pedibus pallide carneis. Long. 
tota 5:0, ale 2-4, caudee 2:0, rostri a rictu 0-52, tarsi 0°76. (Descr. exempl. ex Jalapa, Mexico. Mus. 
nostr.) 
Obs. Avis ex Costa Rica et Panama pileo medio paulo magis aurantiaco et dorso olivascentiore forsan distin- 
guenda. 
Hab. Mexico, Jalapa (Deppe 122, Hoge), Cordova (Sallé'°), temperate region of Vera 
Cruz (Sumichrast *), Teotalcingo (Boucard™); Guaremata, Volcan de Fuego”, 
Volcan de Agua, Coban, Khamkal, Choctum, and road from Cahabon to San Luis 
(0. S. & F. D.G.); Costa Rica, Barranca, Guaitil, Grecia and Dota Mountains 
(Carmiol®); Panama, Volcan de Chiriqui, Calovevora’ (Arcé). 
Though many of the sixteen birds described as from Texas by Giraud have been 
found within the borders of the United States, B. cwlicivorus (included by that author 
as B. brasieri) is not amongst them, and its Texan habitat remains to be confirmed. Its 
northern range does not, so far as we know at present, extend beyond the temperate 
22* 
