BIRDS OF NORTH AND MIDDLE AMERICA. 189 



/. Maxilla dusky or dark horn color. (Eastern Peru and Ecuador to 



' British Guiana.) Psittacula modesta, adult male (extralimital).a 



ff. Maxilla whitish, like mandible. 



g. Width of maxilla at base 8.85 or more, depth of bill at base 14 or more, 

 •wing not more than 77 mm. (Eastern Peru.) 



Psittacula crassirostris, adult male (extralLinital).^ 

 gg. Width of maxilla at base less than 8.85, depth of bill at base less than 

 14, wing 87.6 or more. 

 Ti. Rump and under wing-coverts not lighter than cobalt blue. 

 {Psittacula vivida.) 

 i. Green color deeper and less yellowish; blue of rimip and under 

 wing-coverts darker (smalt blue). (Southern Brazil, south of 

 Cape St. Roque, southward to Paraguay and northern Argen- 

 tina.) Psittacula vivida vivida (extralimital). " 



a. Green color lighter and more yellowish; blue of rump and under 



wing-coverts lighter (cobalt blue). (Middle Brazil, between 



Cape St. Roque and Rio Amazon, and westward to Bolivia.) 



Psittacula vivida flavescens (extralimital). <^ 



hh. Rump and under wing-coverts not darker than light cerulean blue. 



i. Under parts of body apple green, in slight (if any) contrast with 



color of cheeks; rump and under mng-coverts bright turquoise 



blue. {Psittacula ajanopygia.) 



j. Green color deeper and more yellowish, especially the under 



parts; blue of rump slightly deeper. (Western Mexico, in 



States of Sinaloa, Colima, Jalisco, Durango, and Zacatecas 



and Territory of Tepic.) 



Psittacula cyanopygia cyanopygia, adult male (p. 191). 

 jj. Green color lighter and less yellowish, especially the under 

 parts; blue of rump slightly lighter. (Northwestern Mexico, 

 in State of Sonora.) 



Psittacula cyanopygia pallida, adult male (p. 193). 



o- Psittacula modesta Cabanis, in Schomburgk's Reis. Brit. Guiana, iii, 1848, 727 (Brit- 

 ish Guiana); Ridgway, Proc. U. S. Nat. Mus., x, 1887, 547 (monogr.). — Psittacula sclateri 

 Gray, List Birds Brit. Mus., Psittacidte, 1859, 86 (Rio Javarri, e. Peru; coll. Brit. 

 Mus.); Finsch, Die Papag., ii, pt. 2, 1868, 660; Ridgway, Proc. U. S. Nat. Mus., x, 

 1887, 535 (monogr.); Salvadori, Cat. Birds Brit. Mus., xx, 1891, 244, pi. 6. — Psittaculus 

 sclateri Schlegel, Mus. Pays-Bas, Psittaci, 1864, 32. 



& Psittacula crassirostris Taczanowski, Proc. Zool. Soc. Lend., 1883, 72 (Yurimaguas, 

 e. Peru; coll. — ?); Orn. du Perou, iii, 1886, 100 (tabl.), 215; Ridgway, Proc. U. S. 

 Nat. Mus., X, 1887, 534 (monogr.); Salvadori, Cat. Birds Brit. Mus., xx, 1891, 247. 



c Psittacula passerina (not Psittacus passerinus Linnaeus) of Authors generally, 

 part. — Psittacula passerina vivida Ridgway, Proc. U. S. Nat. Mus., x, sig. 34, Aug. 6, 1888, 

 539 (Bahia, Brazil; coll. U. S. Nat. Mus.); Ibis, 1889, 128; Hartlaub, Journ. fur Orn., 

 1889, 113; Hellmayr, Abh. K. B. Ak. Wiss., ii KL, xxii Bd., iii Abt., 1905, 587 

 (crit.). — Psittacula vivida Boucard and Berlepsch, Humming Bird, ii, 1892, 42 (Porto 

 Real, Brazil); Berlepsch, Novit. Zool. xv, 1908, 276, footnote (crit.); Chubb, Ibis, 

 1910, 264 (Sapucay, Paraguay; synonymy). — Psittacula passerina eubsp. vivida 

 Dabbene, Orn. Argent., 1910, 259 (Misiones, Argentina). 



<i Psittacula passerina (not Psittacus passerinus Linnaeus) of Authors generally, 

 part; Ridgway, Proc. U. S. Nat. Mus., x, 1887, 538 (monogr.). — Psittacula flavescens 

 Salvadori, Cat. Birds Brit. Mus., xx, 1891, 248 (Bolivia; coll. Brit. Mus.). —Psittacula 

 cyanopygia (not of Souanc^) Gray, List Birds Brit. Mus., Psittacidse, 1859, 86 (Bolivia). 

 Ps[ittacula] vivida flavescens Berlepsch, Novit. Zool., xv, Nov., 1908, 285, footnote, 

 in text. 



