86 TACHYCiNETA BICOLOR T. THALASSINA. 



ficatiou and eggs of our Swallows. I will indicate the general character. 

 In Hirundo and Petrochelklon the eggs are alike spotted, heavily and 

 sharply, upon a white ground, with various reddish-brown and darker 

 brown shades. In Tachycineta hicolor and thalassina, in Cotyle and Stel- 

 gidopteryxj and in Frogne purpurea, the eggs are pure white, unmarked. 



TACHYCINETA BICOLOR, (Vieill.) Cab. 



White-bellied Swallow. 



Hirundo hicolor, Vieill., Ois. Am. Sept. i, 1807, 61, pi. 31.— Bp., Syn. 1828, 6.5.— Aud., 

 Oru. Biog. i, 1831, 491; v, 417; pi. 98; Syn. 1839, 35; B. Am. i, 1840, 175, pi. 

 46.— NUTT., Man. i, 1832, p. — .— Gikaud, B. L. 1. 1844, 36.— Lemb., Aves Cubse, 

 1850, 46.— WooDH., Sitgr. Eep. 1853, 65.— Cass., 111. 1855, 244.— Newb., P. R. R. 

 Rep. vi, 18.57, 78.— Brew., N. A. O. i, 1857, 100, pi. 4 (egg).— Bd., B. N. A. 1858, 

 310 ; Rev. 1865, 297.— Coop. & Suck., N. H. Wash. Ter. 1860, 185.— Jones, Nat. 

 Berm. 34. — Lord, Pr. Roy. Avty. Inst, iv, 1864, 15 (British Columbia). — Dall &, 

 Bann., Tr. Chic. Acad, i, 1869, 279 (Alaska).— Coop., B. Cal. i, 1870, 106.— 

 FiNSCH, Abh. Nat. iii, 1872, 29 (Alaska).— Coues, Pr. Phila. Acad. 1871, 21 

 (North Carolina, in January). — Allen, Bull. M. C. Z. iii, 1872, 176 (up to tim- 

 ber-line).— Trippe, Pr. Bost. Soc. XV, 1872, 235 (Iowa).— Hart., Br. Birds, 1872, 

 125 (accidental in England). — Snow, B. Kaus. 1873, 5 : and of most writers. 



Chclidon hicolor, Less. — Bp., List, 1838, 8. 



Tacluicincta hicolor, Cab., Mus. Hein., 1850, 48 ; J. f. 0. iv, 1856, 5 (Cuba).— Gundl., J. f. 

 0. 1861, 330 (Cuba). — SuMiciL, Mem. Bost. Soc. i, 1869, 547 (plateau of Mexico).— 

 Allen, Bull. M. C. Z. ii, 1871, 269 (Florida, in winter).— Coues, Key, 1872, 113. 



Herse hicolor, Bp. Consp. Av. i, 1850, 341. 



PctrochcVulon hicolor, ScL., P. Z. S. 1857, 201 ; 1859, 364 (Xalapa) ; Cat. 1862, 40.— Scl. &, 

 Salv., Ibis, i, 1859, 13 (Guatemala). 



Eirundo viridis, Wils., Am. Om. v, 1812, 49, pi. 38. 



" Chclidon riridis, Boie, 1826." (JJ/x) 



Hirundo Icucogaster, Steph., Shaw's Gen. Zool- x, 1817, 105. 



Chelidon leucoyastra, Boie, Isis, 1844, 171. 



Hah. — Temperate North America. North to Great Slave Lake and Alaska. Mexico, 

 in summer. South to Guatemala. Cuba. Bermudas. Accidental in England ( Try ^^ci/. 

 Zoologist, 1858, 3806; Newton, ihid. 1860, 7145; P. Z. S. 1860, 131). Breeds in most of 

 its United States range. Winters in Florida, Cuba, and Central America. 



Not noticed by the Expeditions. 



The White-bellied Swallow appears to be rarer in the Missouri region 

 than the other species are, or than it is in most other parts of the United 

 States, much of the country being not well suited to its wants. It is oc- 

 casionally seen in the Southern States in midwinter, as in the instances 

 above given. 



TACHYCINETA THALASSINA, (Sw.) Cab. 

 Violet-green Swallow. 



Hirundo ilaUmna, Sw., Phil. Mag. i, 1827, 365.— Bp., List, 1838, 9.— Aud., Orn. Biog. 

 iv, 1838, '-97, pi. 385; Syu. 1839, 36; B, Am. i, 1840, 186, pi. 49.— Wooim., Sitgr. 

 Rep. 1853, 64.— Cass., B. Cal. and Tex. i, 1855, 245.— BRK^v., N. A. Ool. 1, 1857, 

 ia2 (not the fig. !).— Newb., P. R. R. Rep. vi, 1857, 78.— Bd., B. N. A. 1858, 311 : 

 Rev. 1865, 299.— Maxim., J. f. 0, 18.58, 101.— IIeerm., P. R. R. Rep. x, 1859, 36.— 

 Coop. & Suck., N. H. Wash. Ter. 1859, 185.— Lord, Pr. Rov. Arty. Inst. Wool, 

 iv, 1864, 115 (British Columbia).— Coues, Pr. Phila. Acad. 186(), 72 (Arizona).- 

 Coop., Pr. Cal. Acad. 1870, 75; B. Cal. ii, 1871, 107.— Allen, Bull. M. C. Z. iii, 

 1872, 149 (Colorado, up to 8,000 feet). 



"Cccrojiis thalassina, Less." ' 



Chelidon thalassina, Boie, Isis, 1844, 171. 



Hcrse thalassina, Bp., Consp. Av. i, 1850, 341. 



Tachycineta thalassina, Cab., Mus. Hein. 1850.48. — Sumich., Mem. Bost. Soc. i, 1869,547 

 (Vera Cruz, abundant, breeds). — Merr., U. S. Geol. Surv. Ter. 1872, 676. — 

 Coues, Key, l^!72, 113. 



Petrochelidon thalassina. Scl. & Salv., Ibis, 1839, 13 (Guatemala). — Scl., Cat. 1861, 39. — 

 Scl., p. Z. S. 1864, 173 (city of Mexico). 



