FAMILY TYRANNIDJE 



cc. Crown partly black shading to gray on hind- 

 neck; throat yellow 



Todirostrum cinereum finitimum 



bb. Head not proportionately large; bill not long and 

 flat. 



c. Very minute with rather short tail ; crown sooty 

 brown ; white line over eye ; no wing bars ... 

 Microtriccus b. brunncicapillus 



cc. Larger, tail longer; crown olive green; yellow 



line over eye; two yellow wing bars 



Capsiempis flaveola semiflava 



aa. Larger, length not under about 156 mm. (6.10 in.). 



b. Crown and sides of head dusky, separated by a 

 broad white line over eye. 



c. Very large, length about 230 mm. (9.00 in.) . . 

 Megarhynchus pitangua mexicanus 



cc. Smaller, length not over 165 mm. (6.50 in.); bill 

 narrow. 



d. Bill noticeably longer; concealed crown patch 

 yellow; rusty margins to feathers of wings 

 and tail Pitangus lictor 



dd. Bill shorter; concealed crown patch orange 

 or red. 



e. Rusty margins to feathers of wings ; no wing 

 bars Myiozetetes cayennensis harterti 



ee. No rusty margins to feathers of wings ; two 



light wing bars 



Myiozetetes similis columbianus 



bb. Crown and hind-neck gray, with concealed 

 patch of red or orange; forehead whitish. 



Length about 160 mm. (6.30 in.) 



Myiozetetes g. granadensis 



III. Under parts conspicuously streaked. 



a. Larger, length about 200 mm. (7.90 in.) ; upper parts 

 streaked, tail chestnut. 



b. Ground color below whitish 



Myiodynastes maculatus nobilis 



bb. Ground color below light sulphur yellow 



Myiodynastes luteiventris 



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