BIRDS OF WK3TERK COLOMBIA. 1141 



90. CniROMACH.ERLS VITELLINA Gould. 



Pipra vitellina Gould, P. Z. S. 1843, p. 103 (Dec. 1843.— 

 Panama). 



Chiromachceris vitellina Sclater ik Salvin, P. Z. S. 1879, p. 516 

 (Cauca, Remedies). 



Kos. 2025, 2097, 2364, 2494. S 6 ad. Noanama : 28.viii ; 

 Sipi:21.ix; Novita : 3.xii.08, 27. i.09.— Wing 53-54 ; tail 28-30 ; 

 bill 10 mm. 



Nos. 2067, 2185. 6 c?juv. Noanama : 5.ix.08 ; Sipi : 13.X.08. 



Nos. 2352, 2439. ? $ ad. Novita : 30.xi., 28.xii.08.— Wing 

 54-55; tail 29; bill 10 mm. 



"Iris dark brown, feet orange, bill black " 



A single male from Panama is rather more yellowish green on 

 the belly, but does not differ otherwise. C. aurantiaca Salv. is 

 apparently the geographical representative of C. vitellina in 

 Yeragua and S.W. Costa Rica. 



C. vitellina ranges from the Isthmus of Panama south to 

 W. Colombia. 



91. Sapayoa enigma Hart. 



Sapayoa cenigma Hartert, ISTov. Zool. x. p. 117 (1903. — Rio 

 Sapayo, N.W. Ecuador) ; Hellmayr in Wytsman's Genera Avium, 

 part ix. 1910, p. 28, pi. i. figs. 5, 8. 



No. 2418. c? ad. Novita : 19.xii.08.— Wing 82 ; tail 66; 

 bill 15 mm. 



No. 2070. c? juv. Noanama: l.ix.08.— Wing 81 ; tail 61; 

 bill 131 mm. 



Nos."2071, 2457. 5 imm., 2 ad. Noanama: 5.ix.08, 9.i.09.— 

 Wing 82, 79 ; tail 59 ; bill 15 mm. 



" Iris brown, feet black, bill black, mandible gi'ey in adult male 

 and females, yellow in the young male " (no. 2070). 



This cui-ious bird was hitherto represented only by a single 

 female, the type, from N.W. Ecuador, in the Tring Museum. 

 It has been fully described by Hartert, and I have nothing to add 

 to his excellent account. Sapayoa is certainly related to 

 AS'co^oiAorits, though the shape of the bill, the feathering of the 

 upper portion of the metatarsus etc., serve to distinguish it at a 

 glance. 



The females agree exactly with the type, while the adult male 

 difi'ers in having the middle of the crown bright golden yellow. 

 The tail is longer, with the rectrices decidedly narrower, and 

 the central pair slightly elongated, exceeding the submedian one 

 by about 3 mm. The immature female has the upper part of 

 the head more yellowish green, and the throat slightly paler 

 yellowish than the adults. The young male (without any trace of 

 the golden yellow crown-patch) has a much shorter, smaller bill, 

 with the lower mandible yellowish white instead of brownish 

 horn-colour. The range of S. cenigma is restricted to the humid 

 lowlands of the Pacific coast of N.W. Ecuador and W. Colombia. 



Piioc. Zool. Soc— 1911, No. LXXYII. 77 



