HTLOPHILUS. 207 



by Mr. Lawrence ^\ and its range traced to Costa Eica le and Nicaragua i^ ; but 

 Prof. Baird, though he allowed H. pusillus to stand as a species i^^ expressed himself 

 as not satisfied respecting its distinction from H. decurtatus; and on several other 

 occasions their identity has been insisted upon ^ i° ^^. 



In habits this species presents nothing peculiar so far as we have observed them. Its 

 constant occupation is the pursuit of insect food amongst the branches and leaves of 

 the forest-trees. Its nest and eggs are unknown. 



2. Hylophilus aurantiifrons. 



HylopMlus aurantiifrons, Lawr. Ann. Lye. N. Y. vii. p. 334^; Baird, Rev. Am. B. i. p. 377^; Scl. 



Ibis, 1881, p. 303 \ 

 HylopMlus hypoxanthus, Pelz. Orn. Bras. p. 136*; Scl. & Salv. P. Z; S. 1868, p. 629'. 



" Supra olivaceus, pileo et nuclia brunneis, fronts aurantiaoo tinota ; subtus pallide flavuf?, gutture albicantiore ; 

 pectore interdum fulvo lavato ; subalaribus et crisso flavidis ; rostro coryUno, pedibus fuscis. Long, tota 

 4*5, alse 2-1, bujus rem. prim. 1-2, caudse 1-8." * (ScJater, I. s. e.^) 



Hah. Panama, line of railway [M^Leannan ^, EicJcs ^). — Venezuela ^ ; Guiana ^ 

 Amazons Valley ^. 



We do not possess any specimens of this bird from the State of Panama, whence 

 Mr. Lawrence's type was derived ^ ; but Mr. Sclater ^ having this specimen before him 

 recently found it to resemble so closely Venezuelan examples, which had been correctly 

 referred to H. hypoxanthus, Pelz., that he placed the latter name as a synonym of 

 H. aurantiifrons. Moreover, from Mr. Sclater's remarks ^, it seems far from improbable 

 that the birds called H. acuticaudus and H. insularis (the former from Venezuela, and 

 the latter from Trinidad and Tobago), may ultimately be found to be inseparable from 

 H. aurantiifrons, in which case the name H. insularis should stand for the species, 

 were it not obviously inapplicable to a continental bird. It is, however, necessary that 

 a good series of specimens of these Hylophili should be examined to settle their 

 position ; for even the Panama bird differs from the Venezuelan in having no tinge of 

 fulvous on the breast, a slight character usually seen in specimens from the latter 

 country. 



E. aurantiifrons belongs to Section C of Mr. Sclater's Monograph 3, in which the 

 colour of the head spreads to a greater or less extent over the back. 



3. HylophUus ochraceiceps. 



HylopMlus ochraceiceps, Scl. P. Z. S. 1859, p. 375 ^ ; Ibis, 1881, p. 306 ^ ; Scl. & Salv. Ibis, 1860, 

 p. 397 'j Baird, Rev. Am. B. i. p. 376'; Lawr. Ann. Lye. N. Y. ix. p. 97'; Salv. P. Z. S. 

 1870, p. 184 \ 



Olivascenti-fuscis, pileo toto rufescenti-ocbraceo, alis nigricantibus pallido brunneo extus limbatis ; canda 



