662 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Myiodynastes audax (not Muscicapa audax Gmelin) Salvin and Godman, Biol. 

 Centr.-Ani., Aves, ii, 1889, 49, part (Sierra Madre, above Ciudad Victoria, 

 Taniaulipas; Jalapa and Mirador, Vera Cruz; Buctzotz, Yucatan). 



[Myiodijnastca] audax Siiarpe, Hand-list, iii, 1901, 129, part. 



MYIODYNASTES HEMICHRYSUS (Cabanis). 

 GOLDEN-BELLIED FLYCATCHER. 



Adults {sexes alike). — Pileum and hindneck dusky grayish olive 

 or dark sooty gray, becomiiio; paler and graj^er on forehead (vvliere 

 soinetiines intermixed with dull whitish), the feathers extensiveh" 

 white or pale yellow basally; crown with a large concealed patch of 

 bright yellow (lemon to nearly cadmium) ; back, scapulars, rumj), and 

 lesser wing-coverts plain, ratlier dull, olive-green; upper tail-coverts 

 olive or greenish olive, indistinctly margined terminally with pale 

 buffy olive or cinnamon; tail deep grayish brown, the inner webs of 

 rectrices rather broadly edged with pale cinnamon or cinnamon-buff, 

 the outer webs sometimes indistinctly edged with the same; wings 

 dusky grayish brown, the inner primaries and outer secondaries 

 narrowly edged with cinnamon, the inner secondaries more broadly 

 edged with dull whitish, the greater coverts narrowly edged with cin- 

 namon or cinnamon-buff, the middle coverts sometimes terminally 

 margined with the same; a broad white superciliary stripe; loral and 

 auricular regions dull black or dusky; suborbital and subauricular 

 regions white ; a dark grayish olive malar stripe ; chin white ; rest of 

 under parts, including axillars and under wing-coverts, bright canary 

 or lemon yellow, the sides of breast broadly but very indistinctly 

 streaked with pale olive ; bill black or brownish black, the basal \)ov- 

 tion of mandible brownish; iris brown; legs and feet dusky (in dried 

 skins). 



Young. — Similar to adults, but without any yellow on crown, 

 back, etc., rather browner olive-green, both webs of rectrices edged 

 with cinnamon-rufous, remiges and greater wing-coverts broadly 

 edged with cinnamon-rufous, and yellow of under parts paler. 



Adult male. — Length (skin), 191; wing, 105.5; tail, 85.5; exposed 

 culmen, 23; tarsus, 18.5; middle toe, 14.** 



Adult female.— l^ewgth. (skins), 183-206 (195); wing, 104-104.5 

 (104.2); tail, 83.5-85 (84.2); exposed culmen, 21; tarsus, 19; mid- 

 dle toe, 13-13.5 (13.2).'' 



Costa Rica (Barranca; Escasii; El Azajar) and western Panama 

 (Chitra; Calobre; Calovevora). 



Hypennitres chrysocephalus (not Scaphorliynchiif: rhrysncephalas Tschudii Cakanis, 



Journ. fiir Orn., 1861, 246 (Costa Rica). 

 Hyperviitres heviichrysus Cabanis, Journ. fiir Orn., 1861, 247, in text (Costa Rica; 



coll. Berlin Mus.?). 



« One specimen, from Panama (Calobre). b Two specimens, from Costa Rica. 



