144 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. XIII. 



Genus STREPTOPROCNE Oberholser. 



Streptoprocne OBERHOLSER, Proc. Biol. Soc. Wash., 1906, p. 69, in text (Type 

 Hirundo zonaris Shaw). 



Streptoprocne zonaris zonaris (Shaw). COLLARED SWIFT. 



Hirundo zonaris SHAW in Miller's Cimel. Phys., 1796, p. 100, pi. 55 (no type 



locality given = Matto Grosso, Brazil).' 



Chaetura zonaris HARTERT, Cat. Bds. Brit. Mus., XVI, 1892, p. 476, part. 

 Streptoprocne zonaris zonaris RIDGWAY, Bull. U. S. Nat. Mus., No. 50, V, 1911, 



p. 697, in key. 

 Chaetura zonaris zonaris HARTERT and VENTURI, Nov. Zool., XVI, 1909, p. 224. 



Range: Southern Brazil, northern Argentina; Bolivia? 



*Streptoprocne zonaris albicincta (Cabanis). NORTHERN COLLARED 

 SWIFT. 



Hemiprocne albicincta CABANIS, Journ. fur Ornith., 1862, p. 165 (Guiana). 

 Chaetura zonaris albicincta HELLMAYR, Nov. Zool., XIII, 1906, p. 36. 

 Streptoprocne zonaris albicincta RIDGWAY, Bull. U. S. Nat. Mus., No. 50, V, 1911, 



p. 697; CHAPMAN, Bull. Am. Mus. N. H., XXXVI, 1917, p. 277 (Numerous 



localities in Colombia). 



Range: Northern South America with Trinidad and Grenada to 

 Costa Rica (except in higher altitudes in Colombia, Ecuador and 

 Southward). 



2 : Colombia. 



*Streptoprocne zonaris altissima b Chapman. COLOMBIAN COLLARED 



SWIFT. 



Streptoprocne zonaris altissima CHAPMAN, Bull. Am. Mus. N. H., XXXIII, 1914, 

 p. 604 (Laguneta, alt. 10,300 ft., near Quindio Pass, central Andes, Colombia) ; 

 Id., XXXVI, 1917, p. 276 (Laguneta, Colombia). 



Range: Temperate zone in higher altitudes in Colombia, Ecuador 

 and southward. 

 i: "Colombia." 



*Streptoprocne zonaris mexicana Ridgivay. MEXICAN COLLARED 

 SWIFT. 



Streptoprocne zonaris mexicana RIDGWAY, Proc. Biol. Soc. Wash., XXIII, 1910, 

 p. 53 (Rio Seco, near Cordova, Vera Cruz, east Mexico). 



Type locality proposed by Chapman, Bull. Am. Mus. N. H., XXXIII, 1914, 

 p. 605. 



b Streptoprocne zonaris altissima CHAPMAN: Size of S. z. zonaris (SHAW) from 

 southern Brazil, but bill heavier and ridge of culmen more prominent; general color, 

 particularly of the inner wing quills and wing coverts, greener; forehead averaging 

 paler, the breast band broader with the terminal half rather than the terminal third, 

 of its feathers white; edge of wing to primary coverts white; differs even more pro- 

 nouncedly from 5. z. albicincta (CABANIS) in the characters and also in its larger size. 



