BIKDS OF NOKTH AND MIDDLE AMERICA. 



597 



(21.34); depth of bill at base, 16.26-19.05 (17.53); width of mandible 

 at base, 13.21-11:. 73 (13.72).^ 



Southern Mexico, in States of Vera Cruz (Mirador, Orizaba, Sante- 

 comapan, etc.), Oaxaca (Playa Vicente, etc.), and Chiapas (Ocuilapa, 

 etc.) to Nicaragua (Rio Escondido, Los Sabalos, etc.) and northern 

 Costa Rica (Rio Frio). 



Cyanoloxia concreta Du Bus, Bull. Ac. Roy. Brux., xxii, pt. i, 1855, 150 (Mexico). 



Ooniaphea concreta Sclater, Proc. Zool. Soc. Lond., 1856, 302 (Orizaba, Vera 

 Cruz). 



Goniaphnsa concreta Sclater, Proc. Zool. Soc. Lond., 1857, 228 (Santecomapan, 

 Vera Cruz). 



[Goiiiaphea] concreta Gray, Hand-list Birds, ii, 1870, 103, no. 7540. 



Guiraca concreta Sclater, Proc. Zool. Soc. Lond., 1859, 378 (Playa Vicente, 

 Oaxaca); Cat. Am. Birds, 1862, 101 (Orizaba). — Salvin and Sclater, Ibis, 

 1860, 32 (Yzabal, Guatemala).— Sumichrast, Mem. Bost. Soc. N. H., i, 1869, 

 551 (hot region. Vera Cruz). — (?) Sclater and Salvin, Proc. Zool. Soc. 

 Lend., 1870, 836 (Honduras).— Nutting, Proc. U. S. Nat. Mus., vi, 1883, 400 

 (Los Sdbalos, Nicaragua). — Salvin and Godman, Biol. Centr.-Am., Aves, 

 i, 1885, 345, part (Mexican, Guatemalan, and Honduras localities). — Ridg- 

 way, Proc. U. S. Nat. Mus., x, 1887, 580 (Segovia R., Honduras) .-Sharps, 

 Cat. Birds Brit. ^lus., xii, 1888, 74, part (Orizaba, Vera Cruz; Vera Paz, 

 Choctum, and Yzabal, Guatemala; Brit. Honduras). — Richmond, Proc. U. 

 S. Nat. Mus., xvi, 1893, 492 (Rio Escondido, Nicaragua; habits). 



^Guiraca'] concreta Sclater and Salvin, Nom. Av. Neotr., 1873, 27, part. 



G.\_uiraca'\ cyanoides concreta Ridgway, Man. N. Am. Birds, 1887, 446, part 

 (Guatemala; eastern Mexico). 



CYANOCOMPSA CONCRETA CYANESCENS Ridgway 

 PANAMA BLUE GROSBEAK. 



Similar to C c. concreta but averaging smaller (the bill especially), 

 the adult male more decidedly bluish, the adult female and young less 

 rusty brown. 



1 Nine specimens. 



Average measurements according to locality are as follows: 



Locality. 



MALES. 



Two adult males from Vera Cruz, eastern 

 Mexico 



Two adult males from Guatemala 



Three adult males from Honduras and 

 Nicaragua 



FEMALES. 



Two adult females from Vera Cruz, eastern 

 Mexico 



Four adult females from Guatemala (3) 

 and Chiapas (1 ) 



Three adult females from Nicaragua and 

 Costa Rica 



Wing. 



85. 34 



82. 80 



82. .55 



78.99 

 76. 45 



77. 22 



Tail. Culmen. 



74.93 

 71.12 



70.36 



21.34 

 21.34 



69.09 j 22.61 

 66.29 21.08 

 65.02 ! 20.57 



Width 

 of man- 

 dible at 



base. 



14.99 

 14.48 



14.73 

 13. 72 

 13.46 



