17. D. dominica. Crown without an orange or yellowish spot; superciliary stripe and side of neck pure white; throat gamboge-yellow; above ash, without streaks. Superciliary stripe bright yellow anterior to the eye. Bill, .45; tarsus, .60; wing, 2.60; tail, 2.00. _Hab._ Atlantic United States and West Indies … var. _dominica_. Superciliary stripe pure white anterior to the eye. Bill, .35; tarsus, .60; wing, 2.70; tail, 2.20. _Hab._ Mississippi region of United States; Mexico (Yucatan on east coast, and Colima on west coast); Guatemala and Honduras … var. _albilora_. B. No black “mask.” Superciliary stripe scarcely reaching behind the eye. Sides of neck ashy like the back. 18. D. graciæ. Auriculars, neck, crown, and upper parts generally, ashy; a supra-loral stripe, a crescent on the lower eyelid, and the anterior lower parts gamboge-yellow. Crissum white. _Back and sides streaked with black; abdomen white._ Yellow of throat terminating abruptly at the jugulum; supra-loral stripe extending about .20 of an inch past the eye, this portion of it white; dorsal streaks broad. Wing, 2.60; tail, 2.20. _Hab._ Arizona (Fort Whipple) … var. _graciæ_. Yellow of throat covering whole jugulum, and not ending abruptly; supra-loral stripe scarcely passing the eye, and wholly yellow; dorsal streaks narrow. Wing, 2.20; tail, 1.95. _Hab._ British Honduras (Belize) … var. _decora_. _Back and sides not streaked with black; abdomen yellow._ Yellow of throat extending back to the crissum; supra-loral stripe as in the last; dorsal streaks wanting. Wing, 2.10; tail, 1.95. _Hab._ Porto Rico … var. _adelaidæ_.[49] _Series VII._ Throat black in ♂, mixed with black in ♀. A. Sides streaked; black of throat with its posterior outline concave. _a._ Side of head white and black. 19. D. nigrescens. A small yellow spot over the lore; above ash; beneath white. ♂. Whole crown, uniform glossy black; back streaked with black. ♀. Crown ash streaked with black; throat mixed with white anteriorly. _Juv._ Crown and cheeks ashy; throat mostly white; back without streaks. _Hab._ Western and Middle Province of United States, south, in winter, into Western Mexico (Oaxaca). _b._ Side of head yellow and black, or yellow and olive. _Black of throat covering jugulum; a hidden yellow spot in middle of forehead._ 20. D. chrysopareia. Black above, pure white below; no tinge of yellow behind the black jugular patch. _Hab._ Eastern Middle America, from Guatemala to Texas (San Antonio).