BIRDS OF NORTH AND MIDDLE AMERICA. 67 



lateral rectrices, the under parts black with flanks white or light 

 gray; or, plain brown or olive above (sometimes with lower back 

 and rump rufescent), the wing-coverts spotted with white, under 

 parts paler bro%VTiish, the throat black spotted or streaked with 

 white. Sexes very difTerently colored, adult females Ijeing brown or 

 olive above, paler brownish, bufl"y, or whitish beneath.'^ 



Range. — Honduras to Cayenne and Amazon Valley. (Several 

 species.)'' 



KEY TO THE SPECIES AND SUBSPECIES OF MYRMOPAGIS. 



(I. General color black, or black and slate color, and white (no brown). 

 h. Flanks white; under wing-coverts immaculate white. 

 c. Upper parts black or slate-black. (Southern Honduras to Venezuela and 



western Ecuador.) Myrmopagis melaena, adult male (p. 68). 



cc. Upper parts slate-gray. (Guiana, Triniddd, and Amazon Valley.) 



Myrmopagis axillaris, adult male (extralimital).c 

 hh. Flanks slate color, like back, etc.; under wing-coverts partly black. 

 c. Tail shorter (about 28 mm.); lesser and middle wing-coverts partly slate color, 

 with anterior portion of the area much more extensively white. (Bolivia to 



eastern Ecuador.) Myrmopagis menetriesii, adult male (extraliniital).<^ 



cc. Tail longer (33.5-38 mm.); lesser and middle wing-coverts black tipped with 

 white, with anterior portion of the area much less extensively white. (Guate- 

 mala to Colombia and Venezuela.) 



Myrmopagis schisticolor, adult male (p. 70). 

 aa. General color olive-brownish (no black except, sometimes, on throat). 

 h. Throat black and white. (Southern Honduras to western Ecuador.) 



Myrmopagis fulviventris, adult male (p. 73). 

 hh. Throat plain buff or buffy whitish. 



c. Middle and greater wing-coverts distinctly tipped with ochraceous-buff. 



Myrmopagis fulviventris, adult female (p. 74). 



o Species examined are: Myrmopagis gutluralis (Sclater and Salvin), M. fulvi- 

 ventris (Lawrence), Myrmopagis ornata (Sclater), M. menetriesii (D'Orbigny), M. 

 Schisticolor (Lawrence), M. axillaris (Vieillot), and M. melaena (Sclater). 



& The range of the group and number of species composing it are matters of uncer- 

 tainty owing to poor representation of the latter in the material examined. 



c Myrmothera axillaris Vieillot, Nouv. Diet. d'Hist. Nat., xii, 1817, 113 (Guiana). — 

 Formicivora axillaris Cabanis, in Wiegm. Archiv fiir Naturg., 1847, pt. 1, 226. — 

 M[yrmophila\ axillaris Cabanis and Heine, Mus. Hein., ii, July, 1859, 13. — i/yr- 

 viotherula axillaris Sclater, Proc. Zool. Soc. Lend., 1858, 236, part; Cat. Birds Brit. 

 Mus., XV, 1890, 238. — Myrmotherula a.viUaris axillaris Hellmayr, Novit. Zool., xiv, 

 1907, 22 (Itaituba, Brazil; crit.), 32 (Obidos, Brazil), 69 (Teffe, Brazil; crit.), 383 

 (Humaytha and Borba, Rio Madeira, Brazil; crit.). — M[yiothera] fuliginosa Lichten- 

 stein, Verz. Doubl., 1823, 45, part (Cayenne; Brazil). 



^ Myrmothera menetriesii D'Orbigny, Voy. Am. M^rid., Ois., 1839, 184 (Cocha- 

 Ijamba, Bolivia). — Formicivora menetriesi Cabanis, in \Megm. Archiv fiir Naturg., 

 1847, pt. i, 226; Menegaux and Hellmayr, Bull. Soc. Philom., 1906, 51 (crit.; type 

 from Yuracares, Bolivia, in Paris Mus.).- — Myrmotherula menetriesi Sclater, Proc. Zool. 

 Soc. Lond., 1858, 237; Cat. Birds Brit. Mus., xv, 1890, 240, Y>^ri.—M[yrmnphila'\mcvc- 

 triesi Cabanis and Heine, Mus. Hein., ii, July, 1859, 13, footnote. — Myrmolherula 

 holiviana Berlepsch, Journ. fiir Orn., Jan., 1901, 96 (San Mateo, n. Bolivia; coll. Count 

 von Berlepsch). (See footnote on p. 70 of present work.) 



