BIRDS OF NORTH AND MIDDLE AMERICA. 35 



223, part (Coahuila, Mazatlan, Guadalajara, Tepic, Guanajuato, and alpine 



reg. Vera Cruz, Mexico;(?) Belize, British Honduras).— Sharpe, Cat. Birds 



Brit. Mus., X, 1885, 173, 632, part (U. S. localities; Brazilian localities?; exc.l. 



syn. cryptoleuca Baird).— ?Salvin, Ibis, 1888, 255 (Cozumel I., May).— 



Sharpe and Wyatt, Mon. Hirund., 1894, 439, part, pi. 87 (includes P. 



cryptoleuca). 

 (?) P[rogne'] purpurea Gray, Gen. Birds, i, 1845, 59.— Cabanis, Mus. Hein., i, 



1850, 50 (Brazil). 

 [Progne] .purpurea Bonaparte, Consp. Av., i, 1850, 337.— Gray, Hand-list, i, 



1869, 74, no. 886.— Coues, Key N. Am. Birds, 1872, 114, part.— Sclater and 



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

 Ptyonoprogne purpurea Boucard, Cat. Av., 1876, 335, no. 10526. 

 [Hirundo'] iwlacea Gmelin, Syst. Nat, i, 1788, 1026 (baaed on Hirondelle de la 



Louisiane Daubenton, PI. Enl., pi. 722). — Latham, Index Orn., ii, 1790, 574. 

 Cecropi^ tmlacea Boie, Isis, 1828, 316. — Lesson, Compl. Buffon, viii, 1837, 498. 

 Hirundo cxrulea Vieillot, Ois. Am. Sept., i, 1807, 27, pis. 26, 27. — Lesson, 



Trait6 d'Orn., 1831, 269. 

 Hirundo versicolor Yiwiiiart, Nouv. Diet. d'Hist. Nat., xiv, 1817, 509 (based on 



H. purpurea Linnajus and H. violacea Gmelin) ; Enc. M6th., ii, 1823, 522. 

 Hirundo ludoviciana Cuvier, ESgne Anim., i, 1817, 374. 

 Progne elegans, part, Baird, Review Am. Birds, May, 1865, 275 (adult male 



from Bahia, Brazil). 

 Progne subi^ cryptoleuca (not Progne cryptoleuca Baird) Scott, Auk, vi, 1889, 325 



(s. Florida, north to Tarpon Springs; crit.). 

 Progne cryptoleuca (not of Baird) Scott, Auk, ix, 1892, 213 (Caloosahatchie R.,~ 



Florida, breeding). 

 Progne sfubis floridana Mearns, Proc. TJ. S. Nat. Mus., xxiv, no. 1274, 1902, 918 



(Lake Kissimmee, Florida; coll. U. S. Nat. Mus.). 



PROGNE SUBIS HESPERIA Brewster. 

 WESTERN MARTIN. 



Similar to I^. s. s'uJ>is, tlie adult male not distinguishable as to color- 

 ation, but averaging slightly smaller (except bill and feet) ; adult female 

 much paler than that of P. s. suhis, the under parts more extensively 

 white, with chin and throat nearly uniform grayish white or pale gray, 

 the darker gray feathers of chest with very broad margins of very 

 pale gray or grayish white, the "hoary" (white or very pale grayish) 

 of forehead more extensive, invading the crown to a greater or less 

 extent, and the pale grayish or grayish white collar round hindneck 

 more distinct. 



AdAdtmale.—ljQngih (skins), 168-206 (180.6); wing, 138-153 (145.5); 

 tail, 67-79 (73.3), forked for 16-23 (19.7); exposed culmen, 10-12 (11.7); 

 width of bill at frontal antise, 8-9.5 (8.4); tarsus, 14-15.5 (15.1); middle 

 toe, 16-18 (17).« 



Adult female.—hQngihiBkms), 160-193 (177); wmg, 135-147 (141); 

 tail, 65-74.5 (69.7), forked for 14-20 (17.1); exposed culmen, 10-12 



o Twenty specimens. 



