VOT. XVT ~\ 



1893: 'J PROCEEDINGS OF THE NATIONAL MUSEUM. 683 



9. Formicarius nioniliger Sclater. * 



Formicarius moniliger ScL., P. Z. 8. 1856, 294 (Cordova, Vera Cruz, Mexicoj ; 1857, 47; 



1858, 278 (Vera Cruz ; Mosquito coast) ; 1859, 383 (Playa Viceute, Oaxaca) ; Catal! 



1862, 191, No. 1165 (Oaxaca); Cat. B. Brit. Mus. xv, 1890, 303, part (s. Mexico; 



Guatemala; Belize, Brit, Honduras).— Salv., Ibis, 1861, 353 (Cliisec, centr. 



Guatemala); P. Z. S. 1866, 75 (Mexico aud Guatemala).— SuMicn., Mem. Bost. 



Soc. N. H. i, 1869, 556 (near Protrero, Vera Cruz) ; La. Nat. v, , 248 (do).— ScL. 



and Salv., Nom. Neotr. 1873, 75 (Mexico and Guatemala).— Salv. and Godm., 



Biol. Centr.-Am., Aves, ii, pt. 30, 1892, 233, part (Cordova, Cerro do la Defensa, 



near Protrero, Atoyac, aud Playa Vicente, s. Mexico; Cayo, Brit. Honduras; 



Vera Paz, Chisec, Kampamac, Choctum, and Tactic, Guatemala). 

 Myrmornis monUigera Cab., J. f. 0. 1861, 96. 



Hab.— Southern Mexico, Guatemala, and British Honduras. 



Sp. char,.— Above brown, more russet on upper tail coverts; chin, 

 throat, cheeks, orbits, and lores black, the latter with a white spot; 

 sides of neck and band across fore neck, immediately below black 

 throat, dull cinnamon-chestnut; rest of uiKler parts dull browuish 

 gray, darker on chest, paler on belly; under tail coverts dusky, more 

 or less tipped with light brown, this nearly uniform over shorter ante- 

 rior feathers. 



Adult male (No. 223G7, "Mexique," Verreaux).— Pileum deep warm 

 bistre, the feathers darker centrally; hind neck Yandyjje brown; rest 

 of upper parts rich brown (intermediate between mummy brown and 

 bistre), brighteiiiug into burnt-umber on upper tail coverts. Lores, 

 orbits, malar region, chin, and throat uniform dull black, the first with 

 a distinct central spot of white; immediately behind this black area 

 is a broad band of chestnut, beginning on the ear coverts, passing over 

 the sides of the neck, and thence across the fore neck; chest dark olive- 

 grayish; sides and flanks olive-broAvn or light bistre; breast and sides 

 of abdomen brownish gray, considerably paler than chest, the feathers 

 of the median portion of the abdomen margined at tips with buffy 

 whitish, which predominates posteriorly; under tail coverts dusky, 

 tipped with light fnlvous-brown, this amounting to a mere terminal 

 edging on the longer posterior feathers, but prevailing on the slioiter 

 anterior ones. Bill black, the lower mandible more browuish ; legs and 

 feet light brown (in dried skin). Length (skin), G.80; wings, 3.45 ; tail, 

 2.00; exposed culmen, 0.80; tarsus, 1.25; middle toe, 0.75^ 



Adult female (Coll. Salvin and Godman, Atoyac, Vera Cruz, IMexico, 

 April, D. W. S.).— Similar to adult male as described above, but darker, 

 especially below, where the entire surface ])osterior to the rusty collar 

 (except under tail coverts) is dark sooty gray, darkest on the chest 

 and palest on the lower belly. The rusty collar across the fore neck 

 much narrower (only about 0.10 to 0.15 of an inch), and the white 

 loral spot smaller. Total length (skin), G.35; wing, 3.55; tail, 2.15; ex- 

 posed cnlmen, 0.80; tarsus, 1.23; miiUUe toe, 0.80. 



Juv. (No. 43531, Am. Mus. Nat. Hist., Guatemala: Lawrence collec- 

 tion).— Upper parts colored as in the adidt, lower parts also as in the 



