BIEDS OF NORTH AND MIDDLE AMERICA. 247 



Rio), southern Tamaulipas (Aldama; Tampico; Alta Mira), and 

 southern San Luis PotosI (Vallfe). 



P[ieus] scalaris Waglbb, Isis, 1829, 511 (Mexico »). — Gray, Gen. Birds, ii, 1845, 

 485. — Bonaparte, Consp. Av., i, 1850, 138. — Reichenbach, Handb. Scan- 

 sores, Picinse, 1854, 377, pi. 639, figs. 4264^266. 



[Picus] scalaris Lichtenstbin, Nom. Av. Mus. Berol., 1854, 75. — Geat, Hand-list' 

 ii, 1870, 185, no. 8605.— Sclater and Salvin, Nom. Av. Neotr., 1873, 99, part. 



Picus scalaris Sclater, Proc. Zool. Soc. Lond., 1856, 307, part (Mexico; crit.); 

 Cat. Am. Birds, 1862, 333, part (Orizaba, Vera Cruz). — ^Malheebe, Mon. Picid. 

 i, 1861, 116; iii, 1861, pi. 27, figs. 1-6.— Sundevall, Consp. Av. Picin., 1866, 

 18 (Jalapa, Vera Cruz). — Gray, List Birds Brit. Mus., Oapit. and Picid., 1868, 

 48 (Mexico). — Baird, Brewer, and Ridgway, Hist. N. Am. Birds, ii, 1874, 

 515, part. 



D[ryobates] scalaris Ridgwat, Man. N. Am. Birds, 1887, 284, part (Vera Cruz). 



Dryobates scalaris scalaris American Ornithologists' Union, Check List, 3d ed., 

 1910, 188.— Oberholseh, Proc. TJ. S. Nat. Mus., xli, 1911, 140, 141 (monogr.). 



[Picus scalaris] var. scalaris Baird, Brewer, and Ridgway, Hist. N. Am. Birds, 

 ii, 1874, 501, 517, part. 



[Dyctiopieus] scalaris Bonaparte, Ateneo Italiano, ii, 1854, 123 (Consp. Volucr. 

 Zygod., 1854, 8). 



Picus (Dyctiopieus) scalaris Baied, Rep. Pacific R. R. Surv., ix, 1858, p. xxviii, 

 part. 



D[ictyopipo] scalaris Cabanis and Heine, Mus. Hein., iv, heft 2, 1863, 74 (Jalapa). 



[Dictyopipo] scalaris Heine and REicHENOW,'Nom. Mus. Hein. Om., 1890, 215 

 (Jalapa). 



Dendrocopus scalaris Hargitt, Cat. Birds Brit. Mus., xviii, 1890, 246, part (Aldama 

 and Tampico, Tamaulipas; Jalapa, Cordova, Orizaba, and San Andres, Vera 

 Cruz). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1895, 435, part 

 (Tampico and Aldama, s. Tamaulipas; Jalapa, Coatepec, Cordova, Huatusco 

 near Cordova, Orizaba, and Plan del Rio, Vera Cruz). 6 



[Dendrocopus] scalaris Sharpe, Hand-list, ii, 1900, 215, part. 



Picus gracilis Lesson, Rev. Zool., 1840, 41 (Mexico). 



Picus orizabx Cassin, Proc. Ac. Nat. Sci. Phila., 1863, 196 (Orizaba, Vera Cruz; 

 coU. Acad. Nat. Sci. Phila.). 



DRYOBATES SCALARIS RIDGWAYI Oberholser. 

 tlalcotalpAu woodfeceer. 



Similar to D. s. scalaris, but decidedly smaller; similar in size to 

 v. s. parvus, but lateral under parts streaked instead of spotted (or, 

 if spotted, the spots narrow and much smaller), malar region paler 

 (with less blackish intermixture) anteriorly, and black bars on back, 

 3tc., relatively narrower. 



Adult male.— Length (skins), 140-154 (147); wing, 88-92.5 (90.7); 

 tail, 45-50.5 (47.7) ; exposed culmen, 18.5-20.5 (19.1); tarsus, 16-17.5 

 (16.6); outer anterior toe, 11.5-12 (11.7).'= 



"■ The precise locality not stated, but the description indicates the form from central 

 md northern Vera Cruz. 



* The localities Sola and Juchatengo (Oaxaca) and Amula (Guerrero), mentioned in 

 ;he "Biologia," I am unable to properly allocate, not a single specimen from either of 

 he States of Oaxaca or Guerrero being contained in the series of more than 550 exam- 

 ples of this species examined in this connection. 



c Four specimens. 



