TROGLODYTID.E. 13 



Fam. IV. TROGLODYTID.E, OR WRENS. 



The Troglodytidse, or Wren family, are of wide distribution, and are 

 found alike under the tropics and in temperate latitudes. In South 

 America nearly 100 species altogether are known to occur. Of these 

 two are familiar inhabitants of the whole Argentine Republic, and a 

 third, belonging to the water-loving genus Donacobius, is met with in 

 the eastern provinces on the Parana. A fourth species has been lately 

 described from Tucuman. 



11. DONACOBIUS ATBJCAPILLUS (Linn.). 

 (BLACK-HEADED REED-WREN.) 



Donacobius atricapillus, Scl. Cat. A. B. p. 16 ; Scl. et Salv. Nomencl p. 5 ; 

 Sharpe, Cat. B. vi. p. 364 ; Burm. La-Plata Reise, ii. p. 475. Donacobius 

 brasiliensis, cTOrb. Voy., Ois. p. 213 (Corrientes). 



Description. Above dark chocolate-brown; cap black; wings black, with a 

 large white patch on the inner primaries ; tail black ; lateral rectrices broadly 

 ended with white ; beneath ochreous buff ; sides of breast and flanks with cross 

 lines of dusky brown : total length 7*5 inches, wing 2'9, tail 3*7. Female 

 similar. 



Hab. Guiana, Amazonia, Brazil, Paraguay, and Northern Argentina. 



The genus Donacobius contains two species somewhat intermediate 

 between the Mock-birds and the large Wrens of the genus Campy lo- 

 rhynchus. The well-known Brazilian D. atricapillus extends through 

 Paraguay, where Azara found it abundant, into Corrientes and the 

 adjoining provinces of La Plata. It is met with among the reeds on 

 lakes and streams. 



12. TEOGLODYTES FUEVUS (Gm.). 

 (BROWN HOUSE-WREN.) 



Troglodytes furvus, Scl. et Salv. P. Z. 8. 1869, p. 158 (Conchitas) ; iid. Nomencl. 

 p. 7; Durnford, Ibis, 1876, p. 157, 1877, p. 32 (Chupat), p. 167 (Buenos Ayres), 

 1878, p. 392 (Central Patagonia) ; White, P. Z. S. 1882, p. 593 (Buenos Ayres) ; 

 Doritiff, Exp. al Rio Negro, Zool. p. 36 (Azul, R. Colorado, R. Negro). Tro- 

 glodytes platensis, Burm. La-Plata Reise, ii. p. 476 ; Barrows, Bull. Nutt. 

 Orn. Cl. viii. p. 86 (Concepcion). Troglodytes musculus, Sharpe, Cat. B. 

 vi. p. 255. 



Description. Above brown ; the tail-feathers and outer webs of wing-feathers 

 pencilled witb dark wavy lines ; beneath very pale brown ; bill and feet horn- 

 colour ; eye brown : total length 4-8 inches, wing 2-0, tail 1'7. Female similar. 



Hab. South America. 





