Dee 27 BANGS — SOME COLOMBIAN BIRDS Wil 
1099 
A. heliodovi in having back, rump, upper tail-coverts, abdomen and under 
tail-coverts shining metallic blue—the ead only being green; metallic 
feathers of throat of a less violet shade. Adult @ differs from adult 2 of A. 
heliodori in lacking the rufous upper tail-coverts — the upper tail-coverts and 
rump, in the new species, being green like the back — and in having the two 
central rectrices green, instead of rufous with a black bar like the other rec- 
trices. 
Color.—Adult @: head dark shining grass green; back, rump, upper tail- 
coverts, abdomen and under tail-coverts metallic steel blue; wings and tail 
black; throat glittering ruby-red; breast dull grayish white, this color extend- 
ing around under elongated feathers of side of throat to behind eye; lores 
and lower auriculars dusky; a conspicuous white patch on sides; wooly 
feathers on flanks and about vent white. 
Adult 2: whole upper parts dark shining grass green, with a coppery tinge 
on head and a bluish tinge on rump and lower back ; wings black; throat and 
jugulum pale ochraceous buff; abdomen and under tail-coverts ochraceous 
rufous, a few of the feathers of sides tipped with green; a broad dusky band — 
some of the feathers with green reflections — extending backward from eye; 
an inconspicuous pectoral band — not quite meeting across centre of breast — 
dull green; a white spot on sides and white wooly feathers on flanks and 
about vent; tail—the two central rectrices green like color of back, other 
rectrices rufous with broad black central crossbar. 
A young @ (not full-grown), no. 6845, has back, head and rump much inter- 
mixed with rufous; the two central rectrices are green with blackish subapical 
bars and rufous tips. 
MEASUREMENTS (in millimeters). 
' Exposed 
No. Sex Wing Tail culmen 
6840 (type) rea 31.4 24.6 14.4 
6841 B 31.2 24.8 14. 
6846 fo 32 24. 14.2 
6842 g 34- 16.8 14.6 
6843 g BGs 16.8 14.4 
6844 Q a5: 16.6 14.6 
(The female appears to be considerably larger than the male.) 
Remarks.— Mr. Brown, in all his collecting in the Sierra 
Nevada de Santa Marta, did not take a specimen of this very dis- 
tinct new species of Acestrura until he visited San Sebastian and 
El Mamon last summer. He has, thus far, written me nothing 
concerning its habits. No. 6847, adult 9, killed at San Sebastian, 
July 12, 1899, had an egg in the oviduct. 
There is in the British Museum an adult female from Atanquez 
in the Sierra Nevada de Santa Marta, taken by Simons, recorded 
