NO. 3 NEW BIRDS FROM PANAMA AND VICINITY NELSON 15 



mary nearly equals sixth ; seventh and eighth primaries equal and 

 longest ; length of tail equals distance from bend of wing to tips of 

 secondaries ; tarsus a little more than one-fourth the length of wings ; 

 tail emarginate with two outermost pairs of feathers slightly grad- 

 uated. 



Color. — Above plain olive green with two dull slightly greenish 

 yellow wing bands; narrow supraloral streak and ring about eye 

 white ; chin pale grayish ; rest of under parts rich primrose Yellow 

 except sides of body and a broad band across breast of dull olive 

 greenish ; bill, above and below, black. 



Type of genus Prcedo audax (monotypic). 



PRiEDO AUDAX, sp. nov. 



Black-billed Flycatcher 



Type. — Xo. 238681, adult male, U. S. National Museum, Biologi- 

 cal Survey Collection, from Cana (at 2.000 feet altitude), eastern 

 Panama; collected March 19, 1912, by E. A. Goldman (collector's 

 number 15403). 



Distribution. — Known from type locality only. 



Specific characters. — Resembles Empidonax in general coloration 

 (upper parts olive green, two pale wing bands, under parts yellow 

 except olive breast), but at once distinguished by its black bill and 

 short extension of primaries beyond tips of secondaries. 



Description of type. — Upper parts olive green distinctly darkest on 

 top of head and neck and palest on upper tail coverts and borders of 

 tail feathers ; lores dusky ; ear coverts and below eyes dark olive ; a 

 narrow supraloral streak and ring about eyes white ; wings dusky 

 slaty gray, darker than tail, with two wing bands and edges of sec- 

 ondaries and tertials dull greenish yellow ; edges of primaries dull 

 olive; chin and upper throat pale gray tinged with yellow 7 ; rest of 

 throat, under side of neck, abdomen and under tail coverts rich prim- 

 rose yellow, dullest on coverts ; sides of neck and breast and a nar- 

 row band of same across front of breast dull olive green ; flanks olive 

 green above and yellow below ; upper and lower mandibles black 

 with lower mandible becoming dark horn color at base ; feet and 

 tarsus dusky horn color. 



Measurements of type. — Wing, 58; tail, 52.3; culmen, 13; width 

 of bill at angle of gape 10; tarsus, 15. 



Remarks. — This interesting little flycatcher at first glance appears 

 to be a small species of Empidonax, but the entirely black bill, situa- 

 tion of nostrils and other characters show that it is generically dis- 



