50 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



lHerse]fulva Bonaparte, Consp. Av., i, 1850, 341, part. 



Petrochelklon fulra (not of Cabanis, 1850) Bonaparte, Compt. Rend., xxxviii, 



1854, 650, part. 

 lPetrochelidon']pyrrh(ynota {not Hirundo pyrrhonotaY[e[l\ot?(i) ScL.\TERandSALViN^ 



Nom. Av. Neotr., 1873, 14, part. 

 Petrochelidon pyrrhonota Salvin and Godman, Biol. Centr.-Am., Aves, i, 1883, 

 226, part (Mazatlan and Tepic, w. Mexico).— Sharpe, Cat. Birds Brit. Mas., 

 X, 1885, 193, 635, part (North American references and localities). — (?) Sal- 

 vin, Ibis, 1888, 256 (Cozumel I.).— Sharpe and Wyatt, Mon. Hirund., 1894, 

 531, 590, part, pi. 104 (North American references and localities). 



The following references, usually cited for the present species, are 

 doubtful, either as pertaining to the species in its larger sense or to the 

 North American form: 



[Hirundo] americana Gmelin, Syst. Nat.,i, pt. ii, 1788, 1017 (La Plata; based on 

 Hirondelle d croupion voux et queue carree Buff on. Hist. Nat. Ois., vi, 698; 

 Rufous-rwmped Swallow Latham, Gen. Synop. Birds, ii, pt. 2, 582). — Boie, 

 Lsis, 1828, 315; 1844, 175.— Gray, Hand-list, i, 1869, 71, no. 840. 



P[etrochelidon] americana Cabanis, Mus. Hein., i, 1850, 47, footnote. 



Petrochelidon americana Telzel^, Orn. Bras., 1871, 17, 402. 



Hirundo pyrrhonota Vieillot, Nouv. Diet. d'Hist. Nat., xiv, 1817, 519 (Paraguay; 

 based on Golondrina rabadilla acanelada Azara, Apunt., ii, 511). 



Hlirundol pyrrhonota Gray, Gen. Birds, i, 1845, 58. 



[Hirundo'] pyrrhonota Boie, Isis, 1844, 175. 



Cotyle pyrrhonota Burmeister, Syst. Ueb. Th. Bras., iii, 1856, 145; La Plata Reis., 

 ii, 1861, 477 (Tucuman, Argentina). 



[Petrochelidon] pyrrhonota Sclater and Salvin, Nom. Av. Neotr., 1873, 14, part. 



Petrochelidon pyrrhonota Durnford, Ibis, 1877, 169 (Buenos Aires, Mar.); 1878, 

 58 (Moreno, etc., Argentina, Mar., Apr.). — White, Proc. Zool. Soc. Lond., 

 1882,595 (Flores, Argentina, Dec). — Salvin and Godman, Biol. Centr.-Am., 

 Aves, i, 1883, 226, part ( Brazil ; Paraguay ) .—Sharpe, Cat. Birds Brit. Mus. , x, 

 1885, 193, 635, part (Ytarare and Pelotas, Rio Grande do Sul, s. Brazil; 

 Pacheco, Argentina). — Berlepsch, Journ. fiir Orn., 1887, 114 (Paraguay). — 

 Sclater and Hudson, Argentine Orn., i, 1888, 30.— Sharpe and Wyatt, 

 Mon. Hirund., 1894, 590, part (South American localities and references). — 

 Ihering, Aves do Est. S. Paulo, 1899, 140 (Sao Paulo, s. Brazil). 



PETROCHELIDON LUNIFRONS TACHINA Oberholser. 

 LESSER CLIFF SWALLOW. 



Similar to P. I. lunifronH^ but decidedly smaller (size of P. h melano- 

 gaster) and the frontal patch fawn color, dull cinnamon, or wood brown. 



Adult male.— \^^xxg\h (skins), 103-123 (116.7); wing, 100-104 (102.1); 

 tail, 44-47 (45.3); exposed culmen, 7-8 (7.6); width of bill at frontal 

 antiffi, 6-7 (6.7): tarsus, 11.5-12.5 (12.1); middle toe, 12-13 (12.1).* 



Adult female. — Length (skin), 121; wing, 105.5; tail, 48.5; exposed 

 culmen, 7.5; width of bill at frontal antije, 6; tarsus, 11; middle 

 toe, 11.^ 



«See page 48. If really belonging to this species, this name is quite as likely to 

 belong to the smaller southern form, breeding in southern Texas and eastern 

 Mexico (P. I. tachina). 



b Seven specimens, from Presidio, Brewster, and V^alverde counties, Texas, 



''One specimen, from Presidio County, Texas. 



