362 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



\_Ckianogarrulus] coronatus (not Garrulus coronatus Swainson) Bonaparte, Consp. 



Av., i, May, 1850, 377 (at least part). 

 Clyanocittal coronaia Cabanis, Mus. Hein., i, Oct., 1851, 222 (Mexico). 

 Cyanocitta coronata Sharpe, Cat. Birds Brit. Mus., iii, 1877, 111, excl. syn. 



(highlands of Mexico). 

 Cyanocitta diademata (not Cyanogarrulus diadematus Bonaparte) Sclater, Proc. 



Zool. Soc. Lond., 1860, 252 (Orizaba, Vera Cruz); 1864, 175 (Valley of 



Mexico); Cat. Am. Birds, 1862, 143 (Mexico).— Salvin and Godman, Biol. 



Centr.-Am., Aves, i, 1887, 490 (Valley of Mexico; Hacienda de San Pedro, 



Puebla; Orizaba «). 

 ^Cyanocitta} diademata Sclater and Salvin, Nom. Av. Neotr., 1873, 39. 

 [_Cya7iurus'\ diadematus Gray, Hand-list, ii, 1870, 4, no. 6090. 

 Cyanura coronata var. diademata Ridgway, Am. Journ. Sci., 3d ser., v, Jan., 



1873, 40, 42. 

 ICyariura steUeri'] var. diademata Baird, Brewer, and Ridgway, Hist. N. Am. 



Birds, ii, 1874, 272. 

 Cyanura macroJophus (not of Baird, 1854) Baird, Rep. Pacific R. R. Surv., ix, 



1858, 582, part (City of Mexico). 

 \_Cya7iurus steUeri var. macrolophus] d. diadematus Coues, Birds N. W., 1874, 215 



(synonymy). 

 Cyanocitta steUeri diademata Ferrari-Perez, Proc. U. S. Nat. Mus., ix, 1886, 152 



(Hacienda de San Pedro, Puebla). — Stone, Proc. Ac. Nat. Sci. Phila., 1891, 



445. 

 Clyanocitta'] steUeri diademata Ridgway, Man. N. Am. Birds, 1887, 354. 

 Cyanocitta steUeri azteca Ridgway, Auk, xvi, July, 1899, 256 (mountains near 



Mirador, Vera Cruz, s. e. Mexico; coll. U. S. Nat. Mus.). 



CYANOCITTA STELLERI CORONATA (Swainson), 

 BLTTE-CRESTED JAY. 



Similar to O. s. azteca, but much more extensively blue; the whole 

 crest distinctly blue (dull cobalt or dull ultramarine), the neck, back, 

 and scapulars similar, but (especially the dorsal region) slightly duller, 

 the grayish white on chin and throat more distinct (usually forming a 

 distinct patch), and lower eyelid usually with a distinct (often conspicu- 

 ous) white spot. 



Adult 7nale.~'Length (skins), 266.6-309.5 (286.5); wing, 134.6-148.5 

 (139); tail, 136.5-146 (139); exposed culmen, 24.5-27.5 (25.5); depth 

 of bill at nostrils, 9-10 (9.5); tarsus, 41-45.5 (42.5); middle toe, 22-25 

 (23).^ 



Adtilt female.— Ijength (skins), 254-297 (281.5); wing, 132.5-147.6 

 (140.5); tail, 127.5-137.5 (133); exposed culmen, 23-26.5 (25); depth 

 of bill at nostrils, 8.5-10 (9.5); tarsus, 38-43 (41); middle toe, 20.5-24 

 (22.5).^^ 



Highlands (pine region) of Guatemala, southern Mexico, and part 

 of Honduras; north, along eastern side of Mexican plateau through 

 Vera Cruz (Mirador, Orizaba, Jalapa, Las Vigas, etc.), to Hidalgo 



« Not the locality Zacatecas, which is the type locality of true C. s. diademata. 

 ^Fourteen specimens. 

 ^Twelve specimens. 



