BIRDS OF NORTH AND MIDDLE AMERICA. 657 



and Santa F6, Veragua; Panama).— Salvin and Godman, Biol. Centr.-Am., 



Aves. i, 1884, 333, part (Nicaragua Costa Rica, and Panama references and 



localities). 

 P-litylus] poliogaster Sclater and Salvin, Exotic Orn., pt. xi, 1869, 168, part 



(Costa Rica; "Veragua; Panama) . 

 [Pitylus] poliogaster Sclater and Salvin, Norn. Av. Neotr., 1873, 26, part. 

 Pitylus poliogaster scapularis Ridgway, Proc. U. S. Nat. Mus., x, Aug. 6, 1888, 



586 (Los Sdbalos, e. Nicaragua; U. S. Nat. Mus.).— Zeledon, An. Mus. Nac. 



Costa Rica, i, 1887, 111 (Angostura, Costa Rica) .—Richmond, Proc. U. S. 



Nat. Mus., xvi, 1893, 491 (Rio Frio, Costa Rica; Rio Escondido, Nicaragua; 



habits). 



Genus RHODOTHRAUPIS Ridgway. 



Rhodothraupis Ridgway, Auk, xv, no. 3, July (pub. May 14), 1898, 226. (Type, 

 Fringilla celusno Lichtenstein. ) 



Similar to Caryothraiistes but tail much longer (nearly as long as 

 wing) and decidedly rounded; ninth primary not longer than second, 

 instead of longer than third; tarsus decidedly longer than middle toe 

 with claw. Sexes different in color, though similar in pattern, the 

 adult male being dull carmine red below and across hindneck, other- 

 wise, including head (all round) and chest, black; adult female and 

 immature male with head and chest black, otherwise plain olive-green, 

 more yellowish on under parts and hindneck. 

 Range. — Eastern Mexico. (Monotypic.) { 



While bearing a strong superficial resemblance in coloration to Peri- 

 parphynis,^ this genus is exceedingly distinct in structure, in which 

 respect it is much more nearly related to Caryothr amies. The bill is 

 less different in form from that of C. viridis or O. poliogaster than 

 these are from one another, but the nostril appears to be more rounded 

 than in either, with less of an overhanging membrane. Bhodothraujns 

 agrees with Periporphyrus in lengthened and distinctly rounded tail, 

 and, to a degree, in the pattern of coloration, but the bill is exceed- 

 ingly different in form. 



RHODOTHRAUPIS CEL^ENO (Lichtenstein). 

 CRIinSON-COLLAREI) GROSBEAK, 



Adult male. — Head, foreneck, chest, and upper parts (except hind- 

 neck) plain black; hindneck and under parts of bod}^ (posterior to 

 chest) dull red, darker (nearly burnt carmine) on hindneck, lighter and 

 brighter (sometimes almost poppy red) on under parts, where the 

 feathers are more or less black centrally;'^ under tail-coverts dusky, 

 margined (usually broadly) with light red or pink; axillars, under 



^Periporphyrus Reichenbach, Av. Syst. Nat., 1850, pi. 77. Type, Loxia erythro- 

 melas Gmelin. 



* Sometimes these black central spaces to the feathers are so large that the red is 

 reduced to a narrow margin, the flanks sometimes uniform black. In other speci- 



17024—01 42 



