216 CHECK-LIST OF NORTH AMERICAN BIRDS. 



Range. — Breeds from central Alaska, Yukon, and central Alberta south to 

 northern Lower California and northern Durango, east to western South 

 Dakota and western Nebraska. Winters in Mexico south to Guatemala and 

 Costa Rica, migrating through western Texas. Accidental in Illinois. 



Tachycineta thalassina brachyptera Brewster. San Lucas Swallow. [615a.] 



Tachycineta thalassina brachyptera Brewster, Bull. Mus. Comp. Zool., 

 XLI, No. 1, Sept., 1902, 167. (Sierra de la Laguna, Lower California.) 



Range. — Southern half of Lower California north to El Rosario and the 

 Sierra Juarez. 



[An additional race of T. thalassina occurs in Mexico.] 



Genus IRIDOPROCNE Coues. 



Iridoprocne Coues, Birds Colo. Valley, 1878, 412. Type, by orig. desig., 

 Hirundo bicolor Vieillot. 



Iridoprocne bicolor (Vieillot). Tree Swallow. [614.] 



Hirundo bicolor Vieillot, Oiseaux Amer. Sept., I, 1807 [1808], 61 (pi. 31). 

 (Centre des Etats-Unis = New York.) 



Range. — -Breeds from northwestern Alaska, southern and western Macken- 

 zie, northern Manitoba, and northern Quebec to southern California, Colorado, 

 Kansas, northeastern Arkansas, and Virginia. Winters from central Cali- 

 fornia, southern Texas, coast region of the Gulf and South Atlantic States, and 

 North Carolina (frequently to New Jersey) south over the greater part of 

 Mexico to Honduras and Cuba. Occasional in Bermuda in migration. 



Genus RIPARIA Forster. 



Riparia T. Forster, Synop. Catal. Brit. Birds, 1817, 17. Type, by mono- 

 typy, Riparia europaea Forster = Hirundo riparia Linnaeus. 



Riparia riparia riparia (Linnaeus). Bank Swallow. [616.] 



Hirundo riparia Linnaeus, Syst. Nat., ed. 10, I, 1758, 192. (in Europae 

 coUibus arenosis abruptis = Sweden.) 



Range.— Breeds from northern Alaska and northern Quebec south to south- 

 ern California, Arizona, Texas, central Alabama, and Virginia; also in Europe 

 and the British Isles, east to Siberia, and from lat. 70° N. south to Tunisia 

 and Algeria. Migrates through Mexico and Central America to Brazil and 

 Peru; casual in Tucumdn, Argentina; also to East and South Africa and India. 

 [Closely allied races occur in Egypt and northeastern Asia.] 



Genus STELGIDOPTERYX Baird. 



Stelgidopteryx Baird, in Baird, Cassin, and Lawrence, Rep. Expl. and 

 Surv. R. R. Pac, IX, 1858, .xxxiv, 312. Type, by monotypy, Hirundo 

 serripenm's Audubon. 



