332 NORTH AMERICAN BIRDS. 



conspicuous light edgings ; a broad dusky stripe on side of head, involving lores 

 and ear-coverts ; above this a superciliaiy 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 1 . Chin and a broad stripe on each side of throat dusky, forming a conspicuous 

 yy-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. Hob. Mexico and Central America, north to 

 southern Arizona, south to Panama. 



451. M. luteiventris SOL. Sulphur-bellied Tlycatcher. 



a 1 . 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 l . 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. Hob. Cayenne, Trini- 

 dad, Tobago, etc. 



M. audax (GMEL.). Bold Flycatcher. 1 



b 2 . Paler, the prevailing color of the upper parts light olive, mixed, more or 



less, with buify yellowish. 



c 1 . 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. 

 Hob. Venezuela, Colombia, Ecuador, and north to Costa Rica. 



M. audax nobilis (ScL.). Noble Flycatcher. 2 



c 2 . "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 KIDQW. Insolent Flycatcher. 8 



GENUS MYIARCHUS CABANIS. (Page 327, pi. XCIIL, 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. flammulatus), 

 the posterior lower parts (from breast back) varying from deep sulphur-yellow to 



i Muscicapa audax GMEL., S. N. i. pt. ii. 1788, 934. Myiodynastes audax SCL., P. Z. S. 1859, 43. (The 

 above diagnosis based on examination of two specimens only, these from Tobago.) 

 s Myiodynatte nobilis SCL., P. Z. S. 1859, 42. 

 8 New subspecies. Type, No. 27977, U. S. Nat. Mus., Mirador (Vera Cruz), Mexico ; Dr. C. Sartorius. 



