From the analogies of the black Pipilos, it is reasonable to consider these two birds as distinct species, or at least varieties, especially as the specimen before us of that with unspotted wings is marked male. The general appearance is otherwise much the same, the unspotted bird rather smaller, and without the dusky interscapular markings described in macronyx. Should No. 50,225 represent a distinct species, it may be called P. chlorosoma, and distinguished as above. (60,050, Mexico, Boucard.)
[20] Pipilo lateralis (Natt.). Emberiza lateralis, Natt. Mus. Vind. MSS. Poospiza lat. Burm. Th. Bras. III, Av. 2, p. 215. Pipilo superciliosa, Swains. An. Menag. 311, 95, fig. 59.
[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.)
[23] Pipilo maculatus, Swainson. Sp. Char. Male. Similar to the female of Pipilo arcticus, but rather more olivaceous; only the head and neck all round black; shading above insensibly into the back. The white markings mostly edged narrowly externally with black, and clouded with rusty; the nape-feathers faintly, the interscapular broadly, streaked centrally with blackish; lower back and rump, with outer edges of quill and tail feathers, olivaceous-brown. A narrow shaft-streak in white at end of tail. Fourth quill longest; fifth scarcely shorter; first about equal to secondaries. Claws moderate; perhaps larger than in erythrophthalmus. Length of skin, 7.80; wing, 3.15; tail, 4.20; tarsus, 1.10; middle toe and claw, .96; claw alone, .34; hind toe and claw, .81; claw alone, .45. Hab. Mexico (Oaxaca; Real del Monte, Philos. Mag., 1827).
It is a serious question whether this comparatively little known Mexican species of Pipilo is not to be considered as identical with some or all of the species of the United States, with spotted wing-coverts, notwithstanding the difference in the color of the body. It appears, however, to be constant in the olivaceous character of the back,—no reference being made to Mexican specimens entirely black above,—and as such it may be considered a permanent geographical race.
[24] Pipilo fuscus, Sw. Phil. Mag. I, 1827, 434 (Temiscaltepec).—Ib. Anim. in Menag. 1838, 347.—Bp. Consp. 1851, 487.—Sclater, P. Z. S. 1856, 304 (Cordova). ? Kieneria fusca, Bp. C. R. XL, 1855, 356.
Sp. Char. Above dull olive-brown; the top of head having the central portion of feathers tinged (inconspicuously and obscurely) with rufous. Chin and throat pale rufous, bordered by dusky streaks; a single dusky spot in lower part of jugulum. Belly and flanks behind, anal region and crissum, rather darker rufous. Sides grayish-olive, lighter than the back, tingeing the breast, and leaving only a small patch in the centre of under parts white, shading into the surrounding ashy-brown. Fourth and fifth quills longest; first shorter than ninth, or than secondaries.
Dimensions (prepared specimen): Total length, 7.75; wing, 3.80; tail, 4.20; exposed portion of first primary, 2.30; of longest (measured from exposed base of first primary), 3.03. Bill: Length from forehead, .65; from nostril, .40. Legs: Tarsus, .95; middle toe and claw, 1.00; hind toe and claw, .68; claw alone, .36. Hab. Highlands of Mexico.
The specimen described is from the city of Mexico, and belongs to Mr. G. N. Lawrence; others before us are from Temiscaltepec (the original locality of Swainson’s type), Guadalaxara, and Tepic.