_a._ Outer webs of primaries not edged with white at the base. 1. Above olive-brown, the head and neck, only, continuous black; back streaked with black. White spots on wing-coverts not bordered externally with black. Wing, 3.25; tail, 4.00; hind claw, .44. _Hab._ Table-lands of Mexico var. _maculatus_.[21] 2. Above black, tinged with olive on rump, and sometimes on the nape. White spots as in last. Inner web of lateral tail-feathers with terminal white spot more than one inch long; outer web broadly edged with white. Wing, 3.45; tail, 4.10; hind claw, .55. _Female_ less deep black than male, with a general slaty-olive cast. _Hab._ Middle Province of United States, from Fort Tejon, California, to Upper Rio Grande, and from Fort Crook to Fort Bridger var. _megalonyx_. 3. Above almost wholly black, with scarcely any olive tinge, and this only on rump. White spots restricted, and with a distinct black external border. White terminal spot on inner web of lateral tail-feather less than one inch long; outer web almost wholly black. Wing, 3.40; tail, 3.90; hind claw, .39. _Female_ deep umber-brown, instead of black. _Hab._ Pacific Province of United States, south to San Francisco; West Humboldt Mountains var. _oregonus_. _b._ Outer webs of primaries distinctly edged with white at base. 4. Above black, except on rump, which is tinged with olivaceous. White spots very large, without black border. Inner web of lateral tail-feather with terminal half white, the outer web almost wholly white. Wing, 3.50; tail, 3.90; hind claw, .39. _Female_ umber-brown, replacing black. _Hab._ Plains between Rocky Mountains and the Missouri; Saskatchewan Basin var. _arcticus_. B. Interscapulars without white streaks. 5. Above dusky olive; white spots on scapulars and wing-coverts small, and without black edge. Tail-patches very restricted (outer only .40 long). No white on primaries. Wing, 2.85; tail, 3.10. _Female_ scarcely different. _Hab._ Socorro Island, off west coast of Mexico var. _carmani_.[22] [21] _Pipilo maculatus_, SWAINSON, Philos. Mag., 1827. [22] _Pipilo carmani_, BAIRD, MSS.; LAWRENCE, Ann. N. Y. Lyc. X, 7. (Specimens in collection made by Colonel A. J. Grayson.)