540 BIRDS OF THE REPUBLIC OF PANAMA — PART 3 



19, 1970, both taken by E. S. Morton, and one from Curundu, August 

 2, 1966, taken by Storrs Olson and J. Wiese. 



In the first mention of this species by Lawrence (loc. cit., p. 328) 

 he listed it under the name Tyrannula flaviventris, with the remark 

 "Irides brown ; found on high trees, and very rare." In a third section 

 of his report on the Galbraith-McLeannan collection, he described it 

 as new. So little is known of this bird that its relation to other forms 

 is not yet wholly certain. The name used here follows the suggestion 

 of Zimmer (in Amer. Mus. Nov., no. 1095, 1940, pp. 2-3). 



PHYLLOSCARTES SUPERCILIARIS (Sclater and Salvin) : 

 Rufous-browed Tyrannulet, Moscareta Ceja Acanelada 



Small ; tail rather long ; crown slate to blackish slate, back olive- 

 green; lores and line above eye dark rufous; small, fluffy white nasal 

 tufts. 



Description. — Length 95-105 mm. Adult (sexes alike), crown 

 slate to blackish slate, changing on hindneck to the greenish olive of 

 the back, scapulars, lesser wing coverts, rump, and upper tail coverts ; 

 wings dusky ; middle and greater coverts tipped narrowly with pale 

 yellow ; primaries edged with light olive-green, secondaries more 

 prominently with yellowish • olive-green ; tail dusky edged with dull 

 olive-green; fluffy nasal tufts dull white; forehead (narrowly), lores, 

 and narrow line around eye extending faintly back of eye, dark 

 rufous ; side of head slate, with space below eye white, and a dusky 

 line below extending to side of neck ; chin, malar area, and upper 

 f oreneck dull white ; upper breast light gray, lined faintly with white ; 

 lower breast, abdomen, and under tail coverts yellowish white ; tibia 

 dusky ; axillars and under wing coverts pale yellow ; an indistinct 

 dusky spot near edge of wing on under wing coverts. 



This is a little-known species in the mountain forests of Costa 

 Rica and Panama that ranges to northern Colombia and western 

 Venezuela. Two slightly different races are found in Panama. While 

 generic allocation has varied in earlier publications, it seems appro- 

 priate to accept the decision of Zimmer (Amer. Mus. Nov., no. 1095, 

 1940, p. 19) in placing it in Phylloscartes. 



PHYLLOSCARTES SUPERCILIARIS SUPERCILIARIS 

 (Sclater and Salvin) 



Leptotricciis superciliaris P. L. Sclater and O. Salvin, Proc. Zool. Soc. London, 

 October 1868, p. 389. (Chitra, Veraguas, Panama.) 



Characters. — Brighter olive-green on back; crown grayer, super- 

 ciliary and lores brighter cinnamon ; with throat and breast gray. 



