SAYORNIS. 335 
@. Tail with distinct rufous edgings to inner webs, or else without 
distinct rusty edgings to outer webs. 
e. 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 ©@ 24), tail 3.00-3.40 (3.24), bill from nostril .50-.58 
(52), tarsus .75-.80 (.77). Hab. Eastern Mexico, north to 
lower Rio Grande Valley in Texas; Guatemala. 
455. M. lawrenceii (Giraup). Lawrence's Flycatcher. 
e. 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 (3.1), tail 3.00- 
3.25 (3.14), bill from nostril 48-.55 (.51), tarsus .70-.75 (.73). 
Hab. Western Mexico, north to southern Arizona, south, in 
winter, to southern Mexico, including Yucatan.. 455a. M. 
lawrenceii olivascens Ripew. Olivaceous Flycatcher. 
@. 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 Rrp¢w. Cozumel Flycatcher.! 
b?. 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 buffy 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. Hab. Southwestern Mexico (Mazatlan to 
Tehuantepec). 
M. flammulatus Lawr. Flammulated Flycatcher? 
Genus SAYORNIS Bonaparte. (Page 327, pl. XCIV., fig. 3.) 
Species. 
Common Cuaracters.—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 Ripaw., Descr. N. Sp. B. Cozumel, 1885, 3. 
2 Myiarchus flammulatus Lawr., Ann. Lye. N. ¥. xi. July, 1874, 71, 
