3C4 



NOIITII AMERICAN lUliDS. 



2.G0; tail, 2JJ'i, or loss; bill, J>7 and .1*7: tarsus, .OG ; middle toe, 

 .37. J/ah. Kasfcni I'roviiict' North Aiiu'rica, south throui^'h Hasl- 

 ern Mexico to (Jujitt'inala ..... \nv. jla c i c en t r i s . 



Dull olivi'-irray ahove, pak', somewhat ochraccous, yellow beueath ; 

 wiiig-lninds iriayish-whiie ; liui'.ij^ of winjr stron<(ly tiu<;ed with 

 fulvous. Wing, 2.75; tail, 2.()(> to 2.7"). Hub. Western Proviuee 

 of North America, south, through Western Mexico, to Colima. 



var. difficili'i. 

 E. fulvipectuB.* Bill narrow, the width but littK' more than the 

 depth, and the euhueu considerably more than twice the breadth at 

 base. Outer web of lateral tail-feather distinctly whitish, very diiferent 

 from the du>ky of the iinier wtb. Tail deeply emarginated. Colors 

 oi' Jlavireutris var, (UJirilh, but wing-bands broad and bully olive, and 

 a deep shade of fulvous-olive across the breast. Wing. .'{.00; tail, 2.90; 

 bill, .Gl and .22: tarsu.s, .GO; middle toe, .37. Jlab. City of Mexico. 

 b. Grayish or greenish olive above, whitish beneath. 



IF. T((n (leephj emarijinnted. 



Jl obscunis. Exact form and proi)ortions oi' fulvipect us, but tarsus 

 much longer proportionally. Ashy above, with a slight olive tinge; 

 white beneath with no yellow tinge, and without distinct ashy shade 

 across breast ; sides of breast like the back. Orbital ring, wing- 

 markings, and outer web of lateral tail-feather pale clear ashy. Wing, 

 a.OO; tail, 2 SO; bill, XA and .24: tarsus, 77: middle toe, .42. 

 E. hammondi. A'ery similar, l)ut bill much smaller and less elongated. 

 Color of upjicr parts the :'>anie as in ohscxrus : but anterior lower parts 

 nearly uniform ashy, the throat only indistinctly paler, and the posterior 

 portions distinctly uniform pale sulphur-yellow. Outer web of lateral 

 tail-feather less distinctly whitish. Wing, 2.85; tail, 2.55; bill, .50 and 

 .20 : tarsus. .G4 ; middle toe, .34. 



E. minimus Very similar to hammondi, but l)ill much larger, broader, 

 and the lateral outlines less straight. Outer web of lateral tail-feather 

 not appreciably paler than the inner; whole throat distinctly whitish; 

 wimr-bands onlv about half as wide as in hammondi. 



Wing, 2.70 ; tail. 2.G0 ; bill. .57 and .27 : tarsus, .GG ; middle toe, 

 .35. Ilab Eastern Province of North America, and Eastern 

 Mexico ......... var. minimvs. 



•F. Tail donbhj rounded. 



Wing, 2.35 ; tail, 2.20 : bill. .54 and .25 ; tarsus, .62 ; middle toe, 

 .33. Colors of minimus, but wmg-maikings whiter. Hab. 

 Panama (var. ?) pec to r a J i s: .* 



^ Empidonax fulvipedus, L.vwu. Ann. N. Y. Lye. Fob. 1S71, 11. (Typo examined.) A v«ry 

 distinct ^itecies, most nearly related to obscunis, from which it differs totally in color and in 

 much shorter tarsus. 



'^ Emp'donnx minimus, var. pcctoralis. E.npidonax prdoralis, Lawr. It seems but reason- 

 able to consider this bird as the southern race of minimus, as the differences — i. c. smaller size 

 and whiter wing-bands — are just what we find in several other species of the .«ame region, 

 com|)ared with allicil and probably co-specific northern ty]ies, — as tirisciijuhiris and acadicus, 

 soutliern sj)ecimens of frnilli var. pusillus in which the wing-bauds are much whiter than in 

 northern si)ecimens of the .same bird. 



