BIRDS OF NORTH AND MIDDLE AMERICA. 95 



g. Coloration deeper, more strongly buffy below, more brownish above. 

 (Eastern Mexico, except arid coast plain, to Honduras.) 



Planesticus grayi grayi (p. 117) 

 gg. Coloration paler, less strongly buffy below, grayer above. (Arid 

 coast plain of eastern Mexico, from Tamaulipas to Yucatan.) 



Planesticus grayi tamaulipensis (p. 119) 

 ff. Under parts deeper, more wood brown or cinnamomeous; upper parts 

 more cinnamon-brown. (Southern Honduras to Panama.) 



Planesticus grayi casius (p. 120) 

 ee. Smaller (wing averaging less than 115 mm.); coloration more olivaceous. 

 (Santa Marta district of Colombia.) 



Planesticus grayi luridus (extralimital).« 



dd. Inner webs of remiges edged with pale broccoli brown; under tail-coverts 



pale wood brown or buffy brown; lores dusky, margined above by an 



indistinct streak of pale brownish. (Southeastern Mexico to Guatemala.) 



Planesticus infuscatus, adult female (p. 121) 

 cc. General color grayish brown, sooty brown, or black. 

 d. Bill and feet dusky brown; upper parts olive or olive-brown, under parts 

 light grayish brown or olivaceous broccoli brown. 

 e. Above dark olive or olive-sepia, beneath light hair brown, the throat dis- 

 tinctly streaked with darker brown. (Highlands of Costa Rica and 



Chiriqui.) Planesticus plebejus (p. 122) 



ee. Above brownish olive, beneath olivaceous broccoli brown, the throat not 

 distinctly streaked but concolor with rest of under parts. (Highlands 



of Chiapas, southeastern Mexico.) Planesticus difFerens (p. 123) 



dd. Bill and feet yellowish; upper and under parts deep sooty brown or black. 



e. Larger (wing 134.5-147.5, tail 107.5-123); color deep sooty brown, more 



; blackish on wings and tail. (Highlands of Costa Rica and Panama.) 



Planesticus nigrescens (p. 124) 

 ee. Smaller (wing 123.5-133, tail 94-102.5); color entirely black. (Southeast- 

 ern Mexico to Guatemala.) Planesticus infuscatus, adult male (p. 121) 



aa. Plumage spotted on under parts (usually streaked on upper.) (Young.) 



6. A white or pale buff superciliary stripe; scapulars and interscapulars tipped with 

 blackish. {Planesticus migratorius, young.) 

 c. Inner web of lateral rectrix tipped with a white spot. 

 d. Darker and brighter in color, with under parts more extensively (sometimes 

 almost wholly) rufescent, the auricular region and pileum blackish. 



Planesticus migratorius migratorius, young (p. 98) 

 dd. Paler and duller in color, with under parts mostly whitish, the auricular 

 region and pileum dusky grayish. 



Planesticus migratorius achrusterus, young (p. 100) 

 cc. Inner web of lateral rectrix without white terminal spot. 



Planesticus migratorius propinquus, young (p. 101) 

 bb. No white or buffy superciliary stripe; scapulars and interscapulars without 

 blackish tips. 

 c. Under parts partly white. 



"■ PI [anesticus] luridus Bonaparte, Compt. Rend., xxxviii, no. 1, January, 1854, 4, 

 footnote, in text (Colombia); Notes Orn. Coll. Delattre, 1854, 28, footnote, in text. — 

 Turdus luridus Salvin, Proc. Zool. Soc. Lond., 1867, 132 (Santa Marta) .— T[urdus] 

 grayi luridus Hellmayr, Journ. fur Orn., January, 1902, 50, 52 (crit.). — Merula incompta 

 Bangs, Proc. Biol. Soc. Wash., xii, June 3, 1898, 114 (Santa Marta, Colombia; coll. E. 

 A. and 0. Bangs). 



