428 Field Museum of Natural History — Zoology, Vol. XIII. 



Melanerpes formicivorus angustifrons Bendire, Life Hist. N. Am. Bds., II, 1895, 



p. 117; and of authors. 

 Melanerpes angustifrons Baird, Brewer and Ridgway, Hist. N. Am. Bds., II, 



1874, pi. 53, figs. 1-2. 

 Balanosphyra formicivora angustifrons Ridgway, Bull. U. S. Nat. Mus., No. 50, 



VI, 1914, p. 108. 



Range: Southern Lower California (Cape San Lucas district). 

 4: Southern Lower California. 



♦Balanosphyra formicivora albeola {Todd). Belize Woodpecker. 



Melanerpes formicivorus albeolus Todd, Proc. Biol. Soc. Wash., XXIII, 1910, p. 



153 (near Manatee, British Honduras). 

 Balanosphyra formicivora albeola Ridgway, Bull. U. S. Nat. Mus., No. 50, 



VI, 1914, p. 109. 



Range: British Honduras (region of Manatee Lagoon; BeHze). 

 i: British Honduras (Belize River). 



♦Balanosphyra formicivora striatipectus (Ridgway). Streaked- 

 chested Woodpecker. 



Melanerpes formicivorus var. striatipectus Ridgway, in Baird, Brewer and Ridg- 

 way's Hist. N. Am. Bds. II, 1874, p. 561 (Borris, Costa Rica)»; Id., Bull. U. 

 S. Nat. Mus., No. 50, VI, 1914, p. no. 



Range : Southern and southeastern Honduras, Nicaragua and Costa 

 Rica to western Panama (Chiriqui, etc.). 



3: Nicaragua (San Raphael del Norte 2, Matagalpa i). 



♦Balanosphyra flavigula (Malherbe). Sclater's Yellow-throated 

 Woodpecker. 



Melampicos flavigula Malherbe, Rev. et Mag. de Zool., 1849, p. 542 (Colombia). 

 Melampicus flavigula Malherbe, Mon. Picidae, II, 1862, p. 202; IV, 1862, pi. 



99, figs. 5-6. 

 Melanerpes flavigula Sclater, Proc. Zool. Soc. Lond., 1855, p. 161 ; Hargitt, Cat. 



Bds. Brit. Mus., XVIII, 1890, p. 154; Chapman, Bull. Am. Mus. Nat. Hist., 



XXXVI, 1917, p. 350 (eastern and central and western Andes, Colombia; 



numerous localities). 

 Melanerpes flavigularis Sclater, Proc. Zool. Soc. Lond., 1856, p. 307. 

 Balanosphyra flavigula Ridgway, Bull. U. S. Nat. Mus., No. 50, VI, 1914, p. 



102, in key. 



Range : Interior of Colombia. 

 3: "Colombia." 



Balanosphyra xantholarynx (Reichenbach) . Yellow-throated Wood- 

 pecker. 



• Cf. Ridgway, Bull. U. S. Nat. Mus., No. 50, VI, 1914, p. in. 



