296 TISJELIID^. 



1. Microcer cuius bambla. 



Le Bambla de Cayenne, Daubent. PL JEtiL v. pi. 703. fig. 2. 

 Formicariiis bambla, Bodd. I'dhl. PI. Enl. p. 44 (ex Daubent.). 

 Mynuothera troglodytes, Less. Descr. Mamm. et Ois. p. 301. 

 Heterocnemis bambla, Sclater, P. Z. S. 1858, p. 68. 

 Cypborhiuus bambla, Sdater, Cat. Amer. B. p. 19 ; Gray, Hand-l. 



'B. i. p. 193, no. 26G2. 

 Microcercuhis bambla, Baird, Beview Amer. B. p. 114 ; Sdater, 



^- Salv. Numend. Av. Neotr. p. 6 ; Salv. ^" Godm. Biol. C'entr.- 



Amer., Aves, i. p. 7G. 



Adult male. General colour aboye umber-brown, mottled with 

 blackish-bro-vyn edgings to tbe featbers, producing a somewhat scaly 

 appearance, tbe mantle and rump more uniform : lesser and median 

 wing-coyerts like the back ; greater series black with a subtermiual 

 bar of white, forming a conspicuous band right across the wing ; 

 quills black, the primaries a little browner ; upper tail-coyerts like 

 tbe back ; tail-feathers blackish ; lores, sides of face, and ear- 

 coyerts dull ashy ; throat ashy whitish, the fore neck ashy grey, as 

 also the feathers of the chest and centre of the breast, which are 

 slightly scaly in appearance, being edged with brown ; sides of body, 

 flanks, and ituder tail-coyerts rufous-brown, barred with diiskj^ 

 blackish, less distinctly on the latter ; uuder wing-coyerts dull 

 ashy, as also the inner lining of the quills. Total length 3-9 inches, 

 culmen 0"7o, wing 2*3, tail 1, tarsus 0-9. 



Adult female. Similar in plumage to the male. Total length 3*5 

 inches, culmen 0-75, wing 2-2, tail 0"8, tarsus 0-85. 



Young female. Similar in plumage to the adult, the \inder si;rface 

 of the body more plainly banded with ashy whitish and lighter 

 brown, especially on the sides ; the edgings to the feathers of the 

 upper surface rather broader and more distinct. Total length 3'7 

 inches, culmen 0-8, wing 2"1, tail 0*9, tarsus 0-8. 



The White-banded Wren is an inhabitant of Guiana. 



a. 5 ad. sk, Bartica Groye. Demerara, H. Wbitel^, Esq. [C.]. 



Jan. 19, 1880. 



2. Microcer cuius albigularis. 



Heterocnemis albigularis, Sdater, P. Z. S. 1858, p. 67. 

 Cypborbinus albigularis, Sdater, Cat. Amer. B. p. 19; Gray, 



'Mand-l. B. i. p. 193, no. 2665. 

 Pheugopedius albigularis, Baird, Reviciv Amer. B. p. 114. 

 Micrceerculus albigularis, Sdater <^- Salv. Xomencl. Av. Neotr. p. 6 ; 



Salv. i^- Godm. Biol. Cenir.-Amer., Aves, i. p. 76. 



Adidt (Sarayacu, Ecuador; C.Buckley). General colour aboye 

 brown, with slight indications of blackish marjgins to the feathers, 

 a little more distinct on the head, which is slightly darker than the 

 back ; least wing-coyerts like the back ; median coyerts blackish, 

 margined with brown, the primary-coyerts blackish, subterminally 

 barred with white, forming a baud across the wing ; quills blackish, 



