Vol. XVII 
pos NELSON, Wew North American Birds. 263 
It gives me great pleasure to name this interesting species in 
honor of Mr. Robert Ridgway. 
Empidonax timidus, sp. nov. DuRANGO FLYCATCHER. 
Type, No. 163905, @ ad.,U. S. Nat. Mus., Biological Survey Collection. 
El Salto, Durango, Mexico, July 17, 1898, E. W. Nelson and E. A. 
Goldman. 
Distribution. — Known only from the type locality. 
Specific characters. — Much like £. alb¢gularis but larger with broader 
bill and paler colors. 
Description of type.— Top of head and back, hair brown, slightly 
darkest on head and palest on rump; upper tail-coverts broccoli brown; 
upper surface of wing and tail feathers dull blackish hair brown; sec- 
ondaries and tertials edged with dull whitish; two distinct wing bands; 
the anterior one dark buffy, the posterior one buffy whitish ; sides of head 
and neck paler more grayish brown than back with a pale buffy suffusion ; 
sides of breast pale grayish brown; only a faint indication of pectoral band; 
chin and throat whitish shaded with pale buffy; middle of breast, belly 
and under tail-coverts dull buffy yellowish, underlaid with pale grayish 
brown on breast but clear on belly and tail-coverts; under wing-coverts 
rusty buffy a little paler than in &. alé¢gularis; outer web of outer tail 
feathers a little paler than inner web. 
Dimensions of type. — Wing, 62; tail, 57; culmen, 11; width of bill at 
rictus, 8; tarsus, 17. 
Empidonax bairdi perplexus, subsp. nov. Oaxaca GREEN 
FLYCATCHER. 
Type, No. 154569, 2 ad., U. S. Nat. Mus., Biological Survey Collec- 
tion. Puerto Angel, Oaxaca, Mexico, March 13, 1895, E.W. Nelson and 
E. A. Goldman. 
Distribution.— Arid west coast region of Mexico from near Tehuante- 
pec north to the Territory of Tepic. 
Subspecific characters. — Similar to Z. bazrdi but back lighter greenish, 
wing bands and edgings to secondaries and tertials much paler, more 
yellowish ; larger and paler yellowish area on chinand throat; pectoral 
band much more restricted, with more of a dull brownish shade; sides of 
body less heavily washed with olive greenish; rest of lower parts paler 
yellow. 
Dimensions of type.— Wing, 62; tail, 55; culmen, 12; tarsus, 16.5. 
