3932 NORTH AMERICAN BIRDS. 
a 
conspicuous light edgings; a broad dusky stripe on side of head, involving lores 
and ear-coverts; above this a superciliary stripe of white or yellowish, and below 
it a broad white or yellowish malar stripe; chin and throat (at least medially) 
white, narrowly streaked with dusky; rest of lower parts yellowish or whitish, 
the chest, breast, and sides broadly streaked with dusky. Adult with a concealed 
crown-patch of lemon- or gamboge-yellow. 
a', Chin and a broad stripe on each side of throat dusky, forming a conspicuous 
A-shaped mark ; lower parts, except middle of throat, clear sulphur-yellow ; 
superciliary and malar stripes white; length about 7.75-8.00, wing 4.25-4.60, 
tail 3.30-3.60, culmen .80-.90. Hab. Mexico and Central America, north to 
southern Arizona, south to Panama. 
451. M. luteiventris Sct. Sulphur-bellied Flycatcher. 
a?, Chin and whole throat white, the latter bordered laterally by a brownish and 
dusky stripe along lower half of malar region; lower parts whitish, tinged, 
more or less, with sulphur-yellow, chiefly on sides; superciliary and malar 
stripes pale dull yellowish. 
b. Darker, the prevailing color of the upper parts grayish olive-brown; wing 
4.40-4.50, tail 3.65-3.75, exposed culmen .85-.90. Hab. Cayenne, Trini- 
dad, Tobago, ete. 
M. audax (GMEL.). Bold Flycatcher.! 
b*. Paler, the prevailing color of the upper parts light olive, mixed, more or 
less, with buffy yellowish. 
c. With longer bill, and plumage more rufescent above, especially on top 
of head; wing 4.10-4.45, tail 3.40-3.75, exposed culmen .90-1.05. 
Hab. Venezuela, Colombia, Ecuador, and north to Costa Rica. 
M. audax nobilis (Scu.). Noble Flycatcher.? 
ec. With shorter bill, and almost total absence of rusty tinge to upper 
parts; wing 4.25-4.40, tail 3.50-3.60, exposed culmen .80-.90. Hab. 
Southeastern Mexico (Yucatan to Mirador). 
M. audax insolens Ripew. Insolent Flycatcher.’ 
Genus MYIARCHUS Cazanis. (Page 327, pl. XCIII., fig. 2.) 
Species. 
Common CHaracters.—Above plain grayish brown or olive (the top of head 
sometimes much darker), the wings dusky, with more or less distinct lighter 
edgings; tail-feathers sometimes uniform dusky, but usually with more or less 
rufous, especially on inner webs, which are sometimes entirely of this color; quills 
(occasionally adjacent secondaries also) sometimes edged with rusty ; anterior lower 
parts plain ashy or ashy white (the breast obsoletely streaked in M. fammulatus), 
the posterior lower parts (from breast back) varying from deep sulphur-yellow to 
1 Muscicapa audaz Gmuex., 8. N. i. pt. ii. 1788, 934. Myiodynastes audax Sct, P. Z. 8. 1859, 48. (The 
above diagnosis based on examination of two specimens only, these from Tobago.) 
2 Myiodynastes nobilis Scu., P. Z. S. 1859, 42. 
3 New subspecies. Type, No, 27977, U. S. Nat. Mus., Mirador (Vera Cruz), Mexico; Dr. C. Sartorius. 
