‘ial 
ATTICORA. 311 
(No. 34,676, 9.) Total length, 4.65; wing, 3.75; tail, 2.40, depth of fork, 
-60; difference between primaries, 1.65; length of bill from forehead, .32, 
from nostril, .18, along gape, .46; tarsus, .40; middle toe and claw, .50, claw 
alone, .16, hind toe and claw, .34, claw alone, .17. 
A young bird has the upper parts dull dark smoky-brown, with a 
greenish-blue gloss on the middle of the back only. The under 
parts are white, tinged with brownish-yellow on the chin, becoming 
paler on the throat ; a jugular band and the sides, especially behind, 
strongly tinged with the same. The feathers of the crissum are 
dark brown, without gloss, and margined with paler. A_ still 
younger specimen (33,289) has only the faintest possible trace of 
blue gloss on the back; the rump is smoky brown, lighter than the 
wings and tail; the brownish tinge of under parts deeper and more 
extended. 
The characters assigned to this variety, although apparently slight 
and untangible, are yet quite appreciable on a comparison with a 
large series of Brazilian specimens. The larger bill and deeper fork 
of the tail are especially noticeable. The supposed difference in 
amount of black on the sides may be more apparent than real. 
I am inclined to refer to this variety all the specimens I have seen 
from Bogota, and one from Peru—these agree in the larger and more 
depressed bill; one of the former, however (No. 24,953), has the 
upper parts with a green lustre, as in bicolor, not blue. 
| 
i} 
Smith- | Collec-| Sex 
UJ : 
sonian! tor’s | and Locality. acs Received from Collected by 
No. No. | Age. x 
34,676 Be 2 Parranes,\O.eke | Aprillo76s.| oe Canmiole | en” meee 
34,674 of of San Jose, C. R. May 29, *64. SE dv nn weSyc unt ey western a 
Sh.675"|" ... |e? «“ x ce eC Pe eel eer 
29,549 LPs | eine Sf 1858. Berling Muss igh pean Ocoee 
24,953 an Bogota. ooe i. delGeotroye- us| series 
32,739 |40,654 |] ¢ G2 ya Metreaux:.:: ace dll ” ieaccioans 
14,948 379 | Peru. aie U. 8. Expl. Exped. T. R. Peale. 
(24,953.) Green lustre. 
The two species of the subjoined foot-note are introduced to com- 
plete the history of the subgenus.* 
1 Atticora patagonica. 
Hirundo patagonica, D’Ors. & Larr. Syn. Av. 1837 (Chile and Pata- 
gonia). 
Atticora hemipyga, Burm. Reise La Plata, II, 1861, 479 (Mendoza). 
Hab. Uruguay and Patagonia. 
(No. 21,039.) Above, and on sides of head and neck to line of commissure, 
glossy steel blue; the wings and their coverts, with tail, dull dark brown, 
the lesser coverts only slightly glossed at ends. None of the feathers with 
