Page:Birds of North and Middle America partV Ridgway.djvu/109

instead of rufous- or tawny-chestnut, the upper parts also slightly darker.

Adult male. — Length (skin), 109; wing, 49.5; tail, 46; culmen, 12.5; tarsus, 16.^[1]

Adult female. — Length (skin), 116-121 (118); wing, 48.5-51.5 (50); tail, 45.5-52 (48.7); tarsus, 16.5; middle toe, 10.^[2]

Northwestern Colombia (Rio Truando) to western Ecuadór (Babahoyo; Esmeraldas; Balzár Mts.; Sarayacu; Chimbo) and Cayenne.

Formicivora consobrina Sclater, Proc. Zool. Soc. Loud., I860, 279, 294 (Babahoyo, w. Ecuadór; coll. P. L. Sclater); Cat. Am. Birds, 1862, 183 (Babahoyo) ; Cat. Birds Brit. Mus., xv, 1890, 255 (Babahoyo, Esmeraldas, Balzár Mts., and Sarayacu, Ecuadór; Pocune aud Medellin, Antioquía, and Bogotá, Colombia; Cayenne). — Sclater and Salvin, Proc. Zool. Soc. Lond., 1879, 525 (Pocune, Antioquía, Colombia). — Berlepsch and Taczanowski, Proc. Zool. Soc. Lond., 1883, 565 (Chimbo, w. Ecuadór).

[Formicivora] consobrina Sclater and Salvin, Nom. Av. Neotr., 1873, 72. — Sharpe, Hand-list, iii, 1901, 26.

D[rymophila] consobrina Richmond, Auk, xvi, Oct., 1899, 354, in text.

Formicivora quixensis (not Thavinophilus quixensis Cornalia) Cassin, Proc. Acad. Nat. Sci. Phila., 1860, 190 (Rio Truando. n. w. Colombia).

Formicivora boucardi (not of Sclater) Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 216, part (Rio Truando).

MICRORHOPIAS GRISEA ALTICINCTA (Bangs).

SAN MIGUÉL ANTWREN.

Similar to M. g. intermedia^[3] of Colombia and Venezuela, but adult male much darker above (deep grayish sepia, purplish slate color, or deep brownish slate instead of hair brown or broccoli brown) and more extensively black beneath, the adult female darker brown above and much more strongly buffy beneath.

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1. One specimen, from Rio Truando, Colombia.
2. Two specimens.

   Locality.

   Wing.

   Tail.

   Tarsus.

   Middle toe.

   females.

   One adult female from Rio Truando, Colombia

   48.5

   45.5

   16.5

   10

   One adult female from Ecuador

   51.5

   [52?]

   16.5

   10

   Besides having a longer wing and, apparently, much longer tail than the Rio Truando specimen, that from Ecuadór has the white tips to the rectrices much more extensive. The specimens examined, however, are all imperfect, and a much better series would be necessary to show whether the Colombian and Ecuadorian birds are really different or not.

3. See p. 77.