BIRDS OF NORTH AND MIDDLE AMERICA. 85 



Ilirundo domestica var. Pallas, Zoogr. Rosso- Asiat., i, 1826, 530, part. 



Hirundo rmtlca var. riifa (not Uirundo nifa Gmelin) Middendokfk, Sibir Rei-t- 

 ii, pt. 2, 1853, 188. 



Hirundo rufa (not of Gmelin) Kittlitz, Denkwiird., ii, 1858, 196. 



Hirundo rustica (not of Linnctus) Radde, Reit^e Siulen Ost-Sibir., 1862, 278. 



Hirundo tytlcri Jerdon, Birds of India, iii, 1864, 870.— Blyth. Ibis, 1866, 336.— 

 Gray, Hand-list, i, 1869, 68, no. 790.— Hume, Stray Feath., 1875, 41; 1879, 

 84.— Waldex, in Blyth's Birds Burma, 1875, 127.— Wardlaw-Ramsay, Ibisi 

 1877, 466.— Hume and Davison, Stray Feath., 1878, 41.— Simson, Ibis, 1882,' 

 84.— Godwin-Austen, Ibis, 1882, 345.— Gates, Birds Brit. Burma, i^ 1883* 

 304.— Seehohm, Hist. Brit. Birds, ii, 1883, 171.— Sharpe and Wyatt, Mon' 

 Hirund., 1894, 249, pi. 41. 



[Hirundo rustica.] Subsp. S. Hirttndo tytleri Sharpe, Cat. Birds Brit Mu« x 

 1885, 140. 



Chelidonti/tleri Ste,jxeger, Bull. U. S. Nat. Mus., no. 29, 1885, 269 (Petropavlovsk, 

 Kamchatka; synonymy, critical, etc.); Proc. U. S. Nat. Mus., x, 1887, 143 

 (Bering I., Kamchatka, rare spring visitant) . 



Clhelidon'] ti/tleri Ridgway, Man. N. Am. Birds, 1887, 461. 



Hirundo caUrica (not of Lichtenstein) Godwin- Austen, Journ. Asiat Soc Bengal 

 1874, 152. ' 



H{irundo'] americana (not of Gmelin) Blakistox, Ibi.-i, 1876, 331, in text (Kam- 

 chatka; crit.).— Blakiston and Pryer, Trans. Asiat. Soc. Jap viii 1880 

 311. 



iftm/ido ammcanffl ? Blakiston, Ibis, 1878, 386 (Kamchatka; crit.). 



Hirundo enjthrogastra (not of Boddaert) Blakiston and Pryer, Trans. Asiat. 



Soc. Jap., X, 1882, 139.— Blakiston, Amend. List Birds Jap., 1884, 47. 

 Chelidon erythrogaster Stejnege^, Proc. U. S. Nat. Mus., vi, 1883, 72 ( Pelropavlovsk, 



Kamchatka) . 

 Hirundo gutturalix (not of Scopoli) Taczanowski, Bull. Soc. Zool. France, 1882, 



385.— Dybowski, Bull. Soc. Zool. France, 1883, 357. 

 Hirundo saturata "Stejneger, MS.," Ridgway, Proc. U. S. Nat. Mus., vi, July 



21, 1883, 95 (Petropavlovsk, Kamchatka; coll. IT. S. Nat. Mus.). 



Genus IRIDOPROCNE Coues. 



Iridoprocne Coues, Birds Col. Val., 1878, 412, in text. (Tvpe, Hirundo bicolar 

 Vieillot. ) 



Medium-sized or small Hirundinidae (wing less than l'2o mm.) with 

 narrow oporculate nostrils opening- laterally: frontal feathers not 

 extending- as far as anterior end of nostrils; tail not more than half as 

 long- as wing, forked for less than one-fourth its length; claws of 

 lateral toes reaching nearly or quite to base of middle claw; upper 

 parts glossy steel blue or green in adults (with or without a white patch 

 on rump), the under parts white. 



Bill varia])l(-as to relative size/' but length of exposed culmen alwa^'s 

 much greater than half the distance from nostril to eye, its width at 

 frontal antia^ varying from decidedly less than length of exposed 

 culmen (in /. hico/o/-) to decidedly more (in L leucorrhoa), its di>]ith at 

 same point equal to about half its width (more in /. hicolof); maxillary 



"Smaller, narrower, and 'weaker in /. biro/ or and I. meyeni; larger, broader, and 

 stronger in /. ulbilinea, I. Imcoptero, and /. Uucorrhoa. 



