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[237. Hypocnemis lugubris feminina Hellm. 
Hypocnemis lugubris feminina Hellmayr, Rev, Frang. d’Orn. No. 11. p. 164 (1910.—Borba, Rio 
Madeira). 
H. lugubris (nee Cabanis) Pelzeln, J.c. pp. 88, 163 (Borba) ; Hellmayr, Nov. Zool. xiv. 1907. p. 379 
(syn. part. and excl. specimens 1, 2 ; Borba). 
Right bank : Borba (Hoffmanns, Natterer). . 
. As pointed ont /.c. the birds from the Rio Madeira and lower Rio Negro are 
subspecifically distinct from true H. 1. lugubris (Cab.),* with which H. hypoleuce 
Ridgw.t is synonymous. The typical race is found on the south bank of the 
Amazons (Santarem, Paricatiba), while a third, nearly allied form, H. lugubris 
berlepschi Hellm., inhabits Northern Peru (Iquitos, Nauta). 
A review of the H. lugubris group is given /.c. | 
238. Hypocnemis melanopogon Scl. 
Hypocnemis melanopogon Sclater, Proc, Zool, Soc. Lond, xxv. 1857. p. 130 (1857.—Guiana ; cf. 
Nov, Zool, xiv, p. 381); Hellmayr, Nov. Zool. xiv. 1907. p. 381 (Humaytha, Borba). 
Nos. 166, 422, 527, 731. dd ad., Calama, 5. vii., 18. vili., 8. ix., 27. x. 1907.— 
Wing 62—64 ; tail 34—36 ; bill 16—17 mm. 
No. 711. gad. 8. Isabel, Rio Preto, 17. x. 1907.—Wing 64}; tail 35; 
bill 17 mm. 
Nos. 70, 163, 184, 224, 267, 277, 526. $? ad. and imm., Calama, 18. vi., 4, 7, 
15, 25, 27. vii., 8. ix. 1907—Wing 62—65 ; tail 34—37; bill 164—17 mm. 
Nos. 608, 712. $2 ad., 8. Isabel, Rio Preto, 2, 17. x. 1907—Wing 61, 63; 
tail 33, 34; bill 164 mm. 
“ Tris grey, feet plumbeous or blackish, bill black, in females lower mandible 
grey.” 
The specimens agree perfectly with our large series from British Guiana and the 
aura Valley, Venezuela. In none of them is there any trace of a white inter- 
scapular patch ; the white apical margins to the rectrices are from $ to 1 mm. wide. 
H. melanopogon inhabits both sides of the Madeira. During his first trip in 
1906, Mr. Hoffmanns obtained a series at Humaytha, on the left bank. 
239. Hypocnemis maculicauda Pelz. 
Hypocnemis maculicauda Pelzela, Zur Orn. Bras, ii. pp. 89, 164 (1868.—Villa Maria (type locality) ; 
Villa Bella de Mattogrosso ; Engenho do Gama, Rio Guaporé). 
No. 925. % imm., Marnins, Rio Machados, 12. vi. 1908. “lIris black, feet 
black, bill black, below grey.”— Wing 59; tail 38; bill 16 mm. 
This bird agrees in every detail with some of Natterer’s females (Villa Maria ; 
Vienna Museum), and differs from the preceding species by its smaller size, and by 
having a large, concealed white interscapular patch, and broad white tips to the 
rectrices, about 5 mm. in width. It is a remarkable fact that the Rio Machados 
should possess a species different from that found on the main stream. A similar case 
has already been discussed, cf. Pipra aureola Sasciicauda and P. a. calamae, p. 303. 
H, maculicauda is evidently the southern and western representative of 
* Myrmonaw lugubris Cabanis, Arch. Naturg. 13. i. p. 211 (1847.—* Para”). 
¢ Heteroonemis (?) hypoleuca Ridgway, Proc. U.S. Mus. x. 1887.|p. 523 (1888,—Diamantina, 
Santarem). : 2 
