BIRDS OP WESTERN COLOMBIA. 1099 



Guineo, R. Calima : 7.viii.08. — Wing 54-55 ; tail 45, 47 ; 

 bill 10 mm. 



No. 2134. ? ad. Sipi : 30.ix.08.— Wing 53; tail 43; 

 bill 10 mm. 



" Iris dark brown, feet and bill black." 



One of tlie males (no. 1979: Guineo) agrees with West 

 Ecuadorian skins, the throat being white with a small black spot 

 at the base of the mandibular rami. In the other specimen 

 (no. 1991) the feathers of the upper throat are black, tipped with 

 white. Both have the black breast-band rather wider than the 

 large majority of Ecuador skins, though one or two of the latter 

 hardly differ in that respect. 



The male from the mouth of the Calima (no. 1991) approaches 

 very closely black-throated males of S. aurita, and can only be 

 distinguished by the white tips to the feathei'S of the throat ! 



S. ophthal'mica is no doubt merely a southern race of /S*. aurita^, 

 but luitil the status of this puzzling " species " is better understood, 

 it would be unwise to employ a trinomial appellation. Mr. 

 Ridgway's remarks (in Bull. U. S. Mus. no. 50, Part 1, 1901, 

 p. 573) should be carefully consulted. 



S. ophthalmica is restricted to W. Ecuador and S. W. Colombia. 



26. TeRSINA t VIRIDIS OCCIDENTALIS Scl. 



[Hirundo viridis llliger, Prodr. Syst. Mamm. & Av. p. 229 

 (1811— based on " L'Hirondelle verte," Temminck, Cat. Syst., 

 1807, p. 245, no. 986: Brasilia ;= $); cfr. Allen, Bull. Amer. 

 Mus. N. Y. ii. 1889, p. 70.] 



Procnias occidentalis Sclater, P. Z. S. 1854, p. 249 (Apr. 1855. 

 — " Nova Grenada "). 



P. tersa (nee Linneeus) Sclater & Salvin, P. Z. S. 1879, p. 497 

 (Remedios, Antioquia). 



P. ccerulea occidentalis Berlepsch, Journ. f. Orn. 1884, p. 288 

 (Bucaramanga). 



No. 2035. S ad. Noanama : 29.viii.08.— Wing 87 ; tail 56 ; 

 bill 9 mm. 



Nos. 2404-6, 2412. d c? ad. Novita : 16, 18.xii.08.— Wing 

 81-85 ; tail 52-55 ; bill 9-10 mm. 



" Iris brown, feet and bill black." 



The series agrees, in size and coloration, with other specimens 

 from Bogota, Eastern Ecuador, Venezuela (Cumana), etc. Cfr. 

 my remarks in Nov. Zool. xvii. 1910, p. 271 . Birds from Eastern 

 Brazil (Bahia, Rio) are much larger, and the males have the 

 plumage of a decidedly paler, more greenish blue (nile-blue). 



* Not having seen white-throated males (=hicksii Lawr.) I am unable to say- 

 in what way they differ from S. ophthalmica, but, judging from published de- 

 scriptions, the only character of the northern form appears to consist in the rather 

 wider black band across the chest. 



t For change of generic name see Ridgway, Bull. U. S. Mus. no. 50, pt. iv. p. 880, 

 footnote b 



