Todd-Carriker: Birds of Santa Marta Region, Colombia. 365 



323. Elaenia chiriquensis albivertex von Pelzeln. 



Elcrnia sororia Bangs, Proc. Biol. Soc. Washington, XII, 1898, 175 (Palomina 

 [type-locality] and San Miguel; orig. descr. ; type now in coll. Mus. Comp. 

 Zool. ; meas. ; crit.). — Bangs, Proc. New England Zool. Club, I, 1899, 78, 

 in text (Chirua and La Concepcion; local range). — Allen, Bull. Am. Mus. 

 Nat. Hist., XIII, 1900, 121 (Bangs' record). — Bangs, Auk, XVIII, 1901, 29. 

 in text (crit.). — Sharpe, Hand-List Birds, III, 1901, 122 (ref. orig. descr.; 

 range). — Thayer and Bangs, Bull. Mus. Comp. Zool., XLVI, 1905, 152, in 

 text (crit.). 



Elccnea pagana sororia Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 147 

 (Bonda, Minca, and Santa Marta; crit.). 



Elccnia albivertex von Berlepsch and Hellmayr, Journ. f. Orn., LIII, 1905, 

 2 (Sierra Nevada de Santa Marta; syn. ; crit.).— Thayer and Bangs, Bull. 

 Mus. Comp. Zool., XLVI, 1906, 218 ("Santa Marta''; crit.). — von Ber- 

 lepsch, Ornis, XIV, 1907, 400, 446 (Santa Marta references and localities; 

 syn. ; crit.). 



Elcrnia chiriquensis chiriquensis (not of Lawrence) Ridgway, Bull. U. S. 

 Nat. Mus., No. 50, IV, 1907, 432 (La Concepcion and Palomina; meas.). — 

 Chapman, Bull. Am. Mus. Nat. Hist., XXXVI, 191 7, 455 (Santa Marta re- 

 gion; faunal range). 



Thirty-three specimens : Mamatoco, Cincinnati, La Tigrera, Minca, 

 San Lorenzo, Pueblo Viejo, and Las Taguas. 



The first specimens of this Elccnia received from the Santa Marta 

 region by Mr. Bangs were described by him as a new species, E. 

 sororia. At that time the genus was involved in such hopeless con- 

 fusion that it is little wonder that Mr. Bangs failed to identify his 

 bird with any described form, and it was not until 1905 that it was 

 placed with E. albivertex by Messrs. von Berlepsch and Hellmayr, this 

 allocation being emphasized by the first-named author in his elaborate 

 review of the genus which appeared in 1907. At that time he com- 

 mented especially on the peculiarities shown by the series of specimens 

 from southwestern Costa Rica in his collection, remarking that they 

 were more greenish above and more yellowish below — characters well 

 shown by the three adult skins from this same region in the collection 

 of the Carnegie Museum. Although von Berlepsch suspected the 

 identity of E. chiriquensis Lawrence with E. albivertex von Pelzeln, he 

 did not formally adopt the former (and older) name, preferring to 

 await the reexamination of Lawrence's type. We are assured by Mr. 

 Bangs, however (Auk, XXIV, 1907, 301), that the type "agrees en- 

 tirely " with examples from southwestern Costa Rica, in which case 



