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T A C H Y C I N E T A M E Y E N I (Cab.]
C H IL IA N SWALLOAV.
Hirundo leucopyga (nec Licht.), Meyen, Nova A c ta Acad. Leop.-Carol. Na t. Cur.
lS34s Suppl. p. 73, pl. 10.
Hiru n d o leucopygia (nec Licht.), Gould iu Darwin's Voy. ‘ Beagle,’ Birds, p. 4()
(18d.l).
PelrocheJidon meyeni, Cab. Alus. Hein . Th. i. p. 48 (1850) ; Cass. Cat. Philad. Acad,
p. 5 (1853); Burm. Th. Bras. iii. p. 141 (185G) ; Sclater, Cat. Amer. B. p. 40
(1862).
JUrundo leucorrhoa, pt.. Bp. Consp. i. p. 3 L1 (1850).
Hiru n d o meyeni, Baird, llevicw Amer. B. p. 302 (18G5) ; Sei. P. Z. S. 1SG7, pp. 321,
337 ; id. & Salv. Ib is , 18G8, p. 185, e t 1870, p. 499 ; Gray, Hand-1. B. i. p. 72,
no. 848 (18G9); Scl. & Salv. Nomencl. Av. Neotr. p. 14 (1 8 7 3 ); iid. P. Z. S.
1878, p. 432 ; iid. Bcp. Atoy. ‘ Challenger,’ ii. Birds, p. 100 (1881).
Tachycmeta meyeni, Salvin, P. Z. S. 1883, p. 420 ; Sharpe, Cat. Bii-ds in Brit. Alus.
X. pp. IIG, 631 (1885).
T. suprà purpurascenti-cyaneus : uropygio albo : genis anticis macula nigrà notatis.
Hah. in America meridionali.
Adult. General colour above glossy purplish blue, with a broad white band across the rump; lesser and
median wing-coverts like the hack ; greater coverts blackish, washed with blue externally :
bastard-wing, primary-coverts, and quills blackish, witli a dull bluish gloss; upper tail-coverts
purplish blue ; tail-feathers blackisli, washed with steel-blue; lores and feathers below the eye
velvety black, with a very narrow snpraloral white line ; head, ear-covcrts, and sides of neek
purplish blue like tbe back; cheeks and under surface of body white, with a dusky spot at the
base of the checks; on the chest a slight shade of smoky hrown ; sides of upper breast brown,
with a wash of purplish blue ; sides of body also washed with pale smoky brown ; axillaries and
under wing-covcrts smoky brown ; quills dusky brown below, lighter on the inner webs. Total
length 5'5 inches, culmcn 0’35, wing 4-2, tail 2-1, tarsus 0-45.
The sexes are alike in colour, aud a series measures as follows :—
a. ¿ ad. Chili ( R c c d ) ....................... h. J ad. „ „ ..........
c. ¿ ad. „ „ .......................
d. cJ imm. Coquimbo [Mai-k/iam)
e. ¿ juv. Sandy Point (‘ Challenger’)
f . ? ad.
al length. Wing. Tail. Tarsus
5-0 4-2 1 95 0-4,->
4-3 1-9 0 -I5
5-0 4-25 1-8 0-15
4 1 5 1 7 0-15
3-8 1 7 5 0-40
4'35 1-9 Ü-45