BIRDS FROM BRAZIL AND SOUTHERN VENEZUELA—FRIEDMANN 467 
There appear to be no published records from the Rio Negro, 
although the species has been taken at Manéfos, and on the Upper 
Caura in Venezuela. The present specimens therefore fill a gap in 
the previously known range of this ant-wren. 
MYRMOTHERULA HAEMATONOTA PYRRHONOTA Sclater and Salvin: Rio Negro Rufous- 
backed Ant-wren 
Myrmotherula pyrrhonota SCLATER and Satvin, Nomenclator avium neotropi- 
calium, 1873, p. 160 (Marabitanas, Rio Negro; designated as restricted type 
locality by Hellmayr, Catalogue of the birds of the Americas, pt. 3, 1924, 
p. 147). 
SPECIMENS COLLECTED 
1ad. 9, Brazil, Rio Cauabury, October 28, 1930. 
lad. &, Brazil, Cachoeira, Rio Cauabury, October 30, 1930. 
2im. #,2ad. 9, Brazil, Rio Maturaca, November 9-11, 1930. 
3 ad. o’, Brazil, Salto do Hua, Rio Maturacdé, November 21-25, 1930. 
2im. #, 2ad. ¢, Brazil, Serra Imeri, Rio Maturacé, November 27—December 
2, 1930. 
Z3ad. @, 2ad. ?, Brazil, Sio Gabriel, Rio Negro, December 30, 1930—January 
6, 1931. 
lad. 9, Venezuela, Chapazon, Brazo Casiquiare, January 31, 1931. 
lad. @,2ad. 9, Venezuela Brazo Casiquiare, mouth of Cafio Atamoni, Feb- 
ruary 6, 1931. 
1 ad. — (o*), 1 im. - (&%), Venezuela, Brazo Casiquiare, below mouth of Rio 
Pacila, February 12, 1931. 
lad. @, 1 ad. 9, Venezuela, Upper Orinoco, near Isla Temblador, February 
25, 1931. 
Lad. #,2im. 0, 3ad. 9, Venezuela, Upper Orinoco, Cerro Yapacana, March 
30—April 29, 1931. 
These birds agree with Zimmer’s observation (Amer. Mus. Nov., 
No. 523, 1932, p. 15) that pyrrhonota is a recognizable race, but with 
distinguishing characters other than those on which it was originally 
described. The males are brighter and purer mahogany red on the 
back, paler gray on the breast, and more brownish on the flanks than 
in the nominate race; the females are more orange-ochraceous below. 
Some of the April birds were noted as being in breeding condition 
when collected. 
MYRMOTHERULA AXILLARIS MELAENA (Sclater): Black Ant-wren 
Formicivora melaena ScuateR, Proc. Zool. Soe. London, vol. 25, 1857, p. 239 
(Bogoté). 
SPECIMENS COLLECTED 
2 ad. &, 2-, Brazil, Cucuhy, Rio Negro, February 3-7, 1930. 
1 ad. 9, Brazil, Cachoeira Thomaz, Rio Cauabury, October 27, 1930. 
lad. #,2im. @,1im. 9, Brazil, Rio Cauabury, October 28—November 6, 1930. 
lad. 3, 1im. @, Brazil, Rio Maturac4, November 9-11, 1930. 
lad. #, 1 ad. 9, 1 im. 9, Brazil, Salto do Hud, Rio Maturacé, Novem- 
ber 20-24, 1930. 
2 ad. 7, lad. 9, Brazil, Sao Gabriel, Rio Negro, December 27-31, 1930. 
