BIRDS OF KOETH AKD MIDDLE AMEKICA. 



667 



GEOTHLYPIS TRICHAS IGNOTA Chapman. 

 SOTJTHERN YELLOW-THROAT. 



Similar to G. t. hrachidactyla, but tail relatively longer (nearly, some- 

 times quite, as long as wing), wing more rounded (outermost primary 

 shorter than fourth, instead of longer), and coloration much darker; 

 adult male with greenish olive of upper parts darker, becoming more 

 strongly brownish on crown and occiput, where (at least in winter 

 plumage) the color is nearly vandyke, or chocolate brown; yellow of 

 under parts about equally extensive as in G. t. hrachidactyla, but less 

 pure in hue; sides and flanks darker, approaching raw umber brown. 



Adult viale.—Lmgih. (skins), 110-128 (118.1); wing, 49.5-56.5 

 (55.2); tail, 48-56 (53); exposed culmen, 10.2-13 (11.5); tarsus, 20-22 

 (20.7); middle toe, 12-14 (13.1).' 



Adult female.— hQnih. (skins), 112-121 (115.5); wing, 48.5-54.5 

 (52.2); tail, 47.5-53.5 (49.4); exposed culmen, 10-12 (11.1); tarsus, 

 19.5-21.5 (20.2); middle toe, 12.5-14 (12.9)." 



Southern Atlantic and Gulf coast districts of United States, from 

 southeastern Virginia (Dismal Swamp, breeding) to Florida (over 

 whole peninsula) and westward along Gulf lowlands to eastern Texas 

 (Caranchua Creek, Johnson County, January) ; winters from at least 

 coast of South Carolina southward; also winters in Cuba (Matanzas, 

 February; El Guama, March; San Diego de los Banos, April). 



(?) '/Si/ima roscoe Audubon, Orn. Biog., i, 1831, 124, pi. 24 (Mississippi). 

 (?) Trichas roscoe Ndttall, Man. Orn. U. S. and Can., 2d ed., i, 1840, 457. 



' Eighteen specimens. 

 ^Fourteen specimens. 

 Series from different localities average respectively as follows: 



Locality. 



Middle 

 toe. 



MALES. 



Ten adult males from Florida 



Two adult males from Georgia (Liberty County) 



Two adult males from South Carolina (coast) 



Two adult males Irom southeastern Virginia (Dismal 



Swamp) 



One adult male from Louisiana (New Orleans) 



One adult male from eastern Texas (Johnson County) 



FEMALES. 



Eleven adult females from Florida 



One adult female from Virginia (Dismal Swamp) 



Two adult females from Cuba 



13 

 13 

 13 



13.2 



14 



13 



13.1 



13 



12.5 



'While I believe there can be little doubt that Audubon figured and described an 

 immature male of this form, it is probably best not to accept the name roscoe, for 

 the reason that there is now no means of proving the matter, and to accept the later 

 name ignota on the principle that it is never well to exchange a certainty for an 

 uncertainty. 



