Lye. N. Y. vii. p. 317 (1861) ; Scl. Cat. Amer. B. p. 40 (1862) ; Coues, Key N. 

 Amer. B. p. 114 (1872) ; id. B. N.-West, p. 88 (1874) ; Baird, Brewer, & Bidgw. 

 Hist. N. Amer. B. i. p. 334, pi. 16. fig. 13 (1874) ; Henshaw, Bep. Expl. 100th 

 Merid., Zool. p. 215 (1875) ; Ridgw. Bep. Survey 40th Bar. iv. p. 440 (1877) ; 

 Coues, B. Color. Vail. p. 426 (1878); Sennett, Bull. U. S. Geol. Surv. iv. p. 15 

 (1878) ; Coues, t. c. p. 371 (1878) ; Brewst. Bull. Nutt. Orn. Club, ii. p. 63 

 (1878) ; Coues, t. e. p. 105 ; Merrill, Broc. U. S. Nat. Mus. i. p. 125 (1S78) ; 

 Scott, Bull. Nutt. Oru. Club, iv. pp. 93, 142 (1878) ; Beldiug, t. c. p. 408 (1879) ; 

 Bidgw. Broc. U. S. Nat. Mus. iii. p. 175 (1880) ; Boberts & Beuuer, Bull. Nutt. 

 Oru. Club, v. p. 14 (1880) ; Knowlton, op. cit. vi. p. 55 (1881) ; Merriam, t. c. 

 p. 229 (1881) ; Hoffm. Bull. U. S. Geol. Surv. vi. p. 220 (1881) ; Coues, Check- 

 list N. Amer. B. p. 43 (1882) ; Beldiug, Broc. IT. S. Nat. Mus. v. p. 547 (1882) ; 

 Nehrling, Bull. Nutt. Orn. Club, vii. p. 11 (1882) ; Brown, t. c. p. 27 ; Batch, t. c. 

 p. 110 ; Brewst. t. c. p. 146 ; Merriam, t. c. p. 235 ; Allen & Brewst. op. cit. viii. 

 p. 160 (1SS3) ; Lawr. Mem. Bost. Soc. N. H. ii. p. 271 (1S84); Coues, Key N. Amer. 

 B. 2nd ed. p. 323 (1884); Drew, Auk, ii. p. 15 (1885) ; Agersb. t. c. p. 279 ; Turner, 

 Broc. U. S. Nat. Mus. viii. p. 239 (1885) ; A. O. U. Check-1. p. 292 (1886) ; Anthony, 

 Auk, iii. p. 169 (1886) ; Everm. t. c. p. 183 ; Fox, t, c. p. 317 ; Thompson (Seton), 

 t. c. p. 324; Ferrari-Berez, Broc. U. S. Nat. Mus. ix. p. 139 (1886) ; Bidgw. t. c. 

 p. 139, note ; Dwight, Auk, iv. p. 15 (1887) ; Beckh. t. c. p. 123 ; Lloyd, t. c. p. 294 ; 

 Beckh. t.c. p. 304; Nelson, Nat* Hist. Alaska, p. 197 (1887); Bidgw. Man. N. Amer. 

 B. p. 460 (1887) ; Towns. Broc. U. S. Nat. Mus. x. p. 221 (1887) ; Bidgw. t. c. 

 pp. 540, 579 ; Beckh. t. c. p. 682 ; Bichm. Auk, v. p. 23 (1888) ; Scott, t. c. p. 31 ; 

 Faxon & Allen, t. o. p. 150 ; Merrill, t. c. p. 300 ; Brewst. t. c. p. 389 ; Warren, B. 

 Bemisylv. p. 205 (188S) ; Everm. Auk, vi. p. 25 (1889) ; Faxon, t. c. pp. 45, 102 ; 

 F. H. Allen, t. c. p. 77 ; Mcarns, Auk, vii. p. 48 (1890). 



Ilerse lunifrons, Coues, Ibis, 1865, p. 159. 



Pet rochelidon pyrrhonota, Scl. & Salv. Nomencl. Av. Neotr. p. 14 (1873) ; Durnf. 

 Ibis, 1877, p. 169, 187S, p. 58 ; White, B. Z. S. 1882, p. 595 ; Salvin & Godman, 

 Biol. Centr.-Amer., Aves, i. p. 226 (1883) ; Sharpe, Cat. Birds in Brit. Mus. x. 

 pp. 193, 635 (1S85); Gibson, Ibis, 1885, p. 277; Salvin, Ibis, 1888, p. 256; 

 Sclater & Hudson, Argent. Orn. i. p. 30 (1888). 



Hirundo fulca, var. lunifrons, Cooper, Broc. U. S. Nat. Mus. ii. p. 246 (1880). 



P. uropygio rufo : gula rufa : fascia frontali pallide arenaria : torque collari cinerascenti-brunnea postice 

 interrupts : mento ad basin nigro : macula jugulari saturate chalybeo -nigra : liypoehondriis ciue- 

 rascenti-brunneis. 



Hub. in America septentrionali, in America centrali occidentali et in America meridionali usque ad 

 terrain Argentinam. 



Adult male. General colour above glossy dark steel-blue, streaked on the back with, more or less con- 

 cealed ashy-whitish edges to the feathers ; lower back and rump ciunamon-rufous, the upper 



