214 BROOKLYN INSTITUTE MUSEUM. SCIENCE BULLETIN 2. 6. 



c'. Under parts not streaked. 

 d. Under parts bright red (adult 



d'. Under parts not bright red. 



. Throat, middle of breast and belly nearly uniform white or 

 very pale greyish white. 



/. Wing more than 90 mm 



/'. Wing less than 90 mm. 



g. Wings and tail black (with or without white markings). 

 h. Both maxilla and mandible black to the base; rectrices 



tipped with white 



h'. Mandible pale at base; rectrices not white tipped (fe- 

 male) 



g'. Wings and tail dusky brownish or blackish 



e'. Throat, middle of breast and belly not uniform white or very 



pale greyish white. 

 /. General color above and below black or slate black. 



g. Head white (male) 



K 1 . Head not white. 



h. Outer primaries acuminate 



. h'. Outer primaries not acuminate 



f. General color above and below not black or slate black. 

 g. A prominent white or yellow superciliary stripe and wing 



more than 70 mm. 

 h. Superciliary stripe white. 



i. Bill less than 15 mm. from the nostrils to the tip. 



j. No bright colored crown patch 



j'. With a bright colored crown patch. 



k. Inner webs of wing-quills edged (broadly) with 

 rufous 



k'. Inner webs of wing-quills not edged with rufous . . 



'. Bill more than IS mm. from the nostrils to the tip. 



jr. Smaller; wing less than 100 mm 



j'. Larger; wing more than 100 mm. 



k. Culmen strongly decurved from base to tip 



k'. Culmen straight, sharply bent at tip only. 



/. Inner webs of tail-feathers almost entirely 

 rufous 



/'. Inner webs of tail-feathers edged (only) with 

 rufous that color not extending to the shafts 



of the feathers 



h'. Superciliary stripe yellow (and wing more than 70 mm.) 

 '. No prominent white or yellow superciliary stripe, or wing 



less than 70 mm. 

 ti. Rump yellow. 



i. Yellow of under parts suffused with fulvous, and 



olive green of back less intense 



'. Yellow of under parts brighter, not suffused with 



fulvous, and back deep rich olive green 



h'. Rump not yellow. 



i. Width of bill at nostrils equal to or greater than dis- 

 tance from the nostrils to the tip of the bill. 

 j. Coronal patch red; general color above rich olive 



brown, darker on the head 



j'. Without coronal patch, general color above dark 



olive green 



'. Width of bill at nostrils not equal to distance from 



the nostrils to the tip of the bill. 

 j. Outstretched feet reaching to or beyond the end of 

 the tail. 

 k. Tail more than half as long as wing 



k'. Tail less than half as long as wing 



j'. Outstretched feet not reaching to the end of the 



tail. 

 *. The three or four outer primaries much reduced 



in size. 

 /. With a well developed crest three outer 



primaries reduced 



/'. Not crested four outer primaries reduced 



k'. Outer primaries not greatly reduced in size. 

 /. A more or less prominent sometimes concealed 



or partially concealed crown patch. 

 m. Smaller, wing less than 80 mm. 



Pyrocephalus rubinus satura- 

 tus. 



Tyrannus dominicensis. 



Fluvicola pica. 



Arundinicola leucocephala. 

 Serpophaga hypoleuta. 



Arundinicola leucocephala. 



Knipolegus pusillus. 

 Knipolegus orenocensis. 



Conopias inornate. 



Myiozeletes cayennensis cay- 



ennensis. 

 Myiozetetes texensis colum- 



bianus. 



Pitangus lictor. 



Megarhynchus pitangua pitan- 

 gua. 



Pitangus sulphuralus rufipen- 

 nis. 



Pitangus sulphuratus trinitatis 

 Sisopygis icterophrys. 



Myiobius modestus. 

 Myiobius barbalus barbatus. 



Platytriccus saturalus. 

 Craspedoprion intermedius. 



Todirostrum cinereum cit 



turn. 

 Perissotriccus ecaudatus. 



Colopteryx galeatus. 

 Atalotriccus pilaris venezue- 

 lensis. 



