SAYORNIS. 



335 



d 1 . Tail with distinct rufous edgings to inner webs, or else without 

 distinct rusty edgings to outer webs. 

 e l . Darker, the top of head more or less sooty, decidedly darker 

 than back; quills, secondaries, and tail-feathers conspicu- 

 ously edged with rusty, and upper tail-coverts strongly 

 tinged with same; inner webs of tail-feathers usually 

 broadly edged with rufous; length about 7.00, wing 3.10- 

 3.40 (3.24), tail 3.00-3.40 (3.24), bill from nostril .50-.58 

 (.52), tarsus .75-.80 (.77). Sab. Eastern Mexico, north to 

 lower Bio Grande Valley in Texas ; Guatemala. 



455. M. lawrenceii (Giraud). Lawrence's Flycatcher. 



e 2 . Paler, with top of head hair- brown or olive, very little darker 



than color of back; quills, secondaries, and tail-feathers 



usually without distinct rusty edgings — often without any 



rusty ; inner webs of tail-feathers usually without rufous 



edges; length 7.00-7.30, wing 2.90-3.25 (3.11), tail 3.00- 



3.25 (3.14), bill from nostril .48-.55 (.51), tarsus .70-.75 (.73). 



Sab. Western Mexico, north to southern Arizona, south, in 



winter, to southern Mexico, including Yucatan .. 455a. M. 



lawrenceii olivascens Eidgw. Olivaceous Flycatcher. 



d\ Tail-feather without rufous edgings to inner webs, but outer webs 



very distinctly edged with rusty, and upper tail-coverts strongly 



tinged with same ; belly and flanks very pale sulphur-yellow. 



Top of head dull sooty, but scarcely brownish ; back dull 



grayish hair-brown; wing 3.00, tail 3.00, bill from nostril 



.50, width at base .33, tarsus .80. 



M. platyrhynchus Kidgw. Cozumel Flycatcher. 1 

 b 2 . "Width of bill at frontal feathers very little, if any, less than length of gonys ; 

 breast very indistinctly clouded or streaked with pale grayish. 



Top of head olivaceous, like back ; middle, greater, and last row of 

 lesser wing-coverts tipped with bufly or light rusty ; length about 

 6.00, wing 2.90-3.00, tail 3.00-3.10, bill from nostril .40, width at 

 base .40, tarsus .70-72. Sab. Southwestern Mexico (Mazatlan to 



Tebuantepec). 



M. flammulatus Lawe. Flammulated Flycatcher. 2 



Genus SAYORNIS Bonaparte. (Page 327, pi. XCIV., fig. 3.) 



Species. 



Common Characters. — Above plain olive-grayish or blackish, the tail black or 

 dusky, its lateral feathers with outer webs edged with whitish ; lower parts vary- 

 ing in color according to species. Young : Similar to adults, but wing-coverts 



1 Myiarchus platyrhynchus Ridgw., Descr. N. Sp. B. Cozumel, 1885, 3. 



2 Myiarchua flammulatus L iwB., Ann. Lye. N. Y. xi. July, 1874, 71. 



