BIRDS OF NORTH AND MIDDLE AMERICA. 



653 



(skins), 182.88-193.04 (186.69); wing, 90.42-99.06 (94.23); tail, 76.96- 

 86.36 (82.55); culmen, from base, 18.03-21.59 (20.07); depth of bill at 

 base, le. 26-17. 53 (17.02); tarsus, 22.10-23.62 (22.86); middle toe 

 15.24-17.53 (16.00).^ 



Nicaragua (Chontales) to British Guiana, Cayenne, eastern Brazil 

 (Pernambuco), Bolivia (Mapiri), eastern and central Peru, and western 

 Ecuador. 



ILoxia] grossa LiNNJiius, Syst. Nat., ed. 12, i, 1766, 307 ("America;" based on 

 Coccothrausles americana cserulea Brisson, Orn. , App. 89, pi. 5, fig. 1 ) .— Gmelin, 

 Syst. Nat. i, pt. ii, 1788, 864.— Latham, Index Orn., i, 1790, 374. 



P.[itylus'] grossus Gray, Gen. Birds, ii, 1844, 362.— Cabanis, Mus. Hein., i 1851 

 143 (Guiana). 



[PUylasI .^rossa Bonaparte, Consp. Av., i, 1850, 503 (Cayenne; Brazil). 



Pitylus grossus Cabanis, in Schomburgls's Eeise Brit. Guiana, iii, 1848, 677.— 

 ScLATER, Proc. Zool. Soc. Lond., 1855, 154 (Bogota, Colombia); 1856, 64 

 (monogr. ; Cayenne; British Guiana; Bogota; Pebas, e. Peru) ; 1857, 264 (Rio 

 Javari, e. Peru); 1860, 293 (Babahoyo, w. Ecuador); Synop. Av. Tanagr., 

 1856, 2 (monogr.); Cat. Am. Birds, 1862, 98 (Esmeraldas, w. Ecuador; 

 Colombia; Cayenne) ; Cat. Birds Brit. Mus., xi, 1886, 303 (Bartica Grove, 

 Camacusa, and Merum6 Mts., Brit. Guiana; Gyapoc, Cayenne; Pebas and 

 Eio Javari, e. Peru; Sarayacu, Esmeraldas, and Balzar Mts., Ecuador; 

 Nichi and Bogota, Colombia; Panama; Santa M, Veragua; Valza and 

 Tucurrique, Costa Rica; Chontales, Nicaragua).— Cassin, Proc. Ac. Nat. 

 Sci. Phila., 1860, 140 (Rio Truando, n. Colombia); 1865, 170 (Pacuar, 

 Costa Eica).— Lawrence, Ann. Lye. N. Y., vii, 1861, 298 (Lion Hill, Pan- 

 ama R. R.); ix, 1868, 102 (Pacuar, Costa Rica).— Sclater and Salvin, 

 Proc. Zool. Soc. Lond., 1864, 352 (Lion Hill); 1873, 185 (Cosnipata, Peru), 

 263 (Rio Javari, e. Peru); 1879, 505 (Remedios and Neche, Colombia).— 

 Salvin, Proc. Zool. Soc. Lond., 1867, 141 (Santa F6, Veragua) ; Ibis, 1872, 317 

 (Chontales, Nicaragua); 1885, 213 (British Guiana).— Pelzeln, Orn. Bras., 

 1871, 220.— Taczanowski, Proc. Zool. Soc. Lond., 1874, 518 (centr. Peru); Orn. 

 du P6rou, ii, 1885, 548.— Zeledon, Cat. Aves de Costa Rica, 1882, 8; An. 

 Mus: Nac. Costa Rica, i, 1887, 111 (Jimenez; Pacuare).— Berlepsch and 

 Taczanowski, Proc. Zool. Soc. Lend., 1883, 549 (w. Ecuador).— Salvin and 

 Godman, Biol. Centr. -Am., Aves, i, 1883, 331.— Allen, Bull. Am. Mus. 

 N. H., ii, 1889, 83 (Mapiri, Bolivia).— Riker and Chapman, Auk, vii, 1890, 

 267 (Santarem, Lower Amazon). — Richmond, Proc. U. S. Nat. Mus., xvi, 

 1893, 491 (Rio Escondido, Nicaragua; notes, habits, etc.). — Salvadori and 

 Ebsta, Boll. Mus. Zool. etc., Torino, xv, 1899, 22 (Valle del Zamora, e. 

 Ecuador; Foreste del Rio Peripa, w. Ecuador; synonymy). 

 IPiiylus'] grossus Sclater and Salvin, Nom. A v. Neotr., 1873, 26. 



'Nine specimens. 



All the males examined are from the Isthmus of Panama. The females represent 

 also South American localities and Costa Rica, their average measurements being as 

 follows: 



I am unable to detect any differences in coloration between specimens from differ- 

 ent localities, including those from eastern Brazil (Pernambuco). 



