798 PATAGONIAN EXPEDITIONS: ZOSLOGY. 



MusciSAXicoLA MACULiROSTRis d'Orbigny and Lafresnaye. 



Muscisaxicola maculirostris d'Orbigny and Lafresnaye, Syn. Av. p. 66 

 (1836) (La Paz, Bolivia). 



Description. — 4160, A. N. S. Phila. (no loc). Total length, 6.08 inches ; 

 wing, 3.15; culmen, .51; tail, 2.60; tarsus, i.oo. Above, including the 

 wings, grayish brown, brighter on the lower back; tail black, outer web of 

 outermost feathers buffy white; superciliary and loral spot buffy white; 

 entire lower surface buffy white ; feet black ; bill black with base of lower 

 mandible yellow. 



Geographical Range. — Chile and Patagonia north to Peru and Bolivia. 



Not found by the Princeton Expedition in southern Patagonia. 



Mr. Peters found this species to be "a fairly common resident in west- 

 ern Rio Negro, arriving at Huanuluan October 5." It had a most pecu- 

 liar aerial performance. Rising from the ground or a perch the male 

 takes a short flight, raising the wings at intervals over the back, drop- 

 ping the tail and legs and uttering a loud pe c/iee. (Bull. M. C. Z. Ixv. 

 no. 9, p. 323.) 



Genus LESSONIA Swainson. 



Type. 



Lessonia Sw. Fauna B.-A., Aves, p. 490 (1831) . . . • . C. niger. 

 Geographical Range. — South America; Andes of Peru, Bolivia and 

 northern Chile ; Argentina and Patagonia as well as southern Chile to 

 sea level. 



Lessonia rufa rufa (Gmelin). 



Alanda rufa Gmelin, Syst. Nat. i. p. 792. 

 Alauda ///^r^' Boddaert, Tabl. PI. Enl. p. 46 (1783). 

 Alanda fulva Latham, Ind. Orn. ii. p. 492 (1790). 



Sylvia dorsalis King, Zool. Journ. iii. p. 428 (1827) (Port Famine, Pata- 

 gonia). 



Description. — Adult male, P. U. O. C. 7596, near Rio Coy, Patagonia, 

 October 30, 1896, J. B. Hatcher. Total length, 5.00 inches; wing, 2.95; 

 culmen, .40; tail, 1.90; tarsus, .85. Entire back bright chestnut, all the 

 remainder of the plumage above and below black, thighs with a slight 

 tinge of chestnut; bill and feet black. 



Adult female, P. U. O. C 7597, near Rio Coy Inlet, Patagonia, Novem- 

 ber 12, 1896, J. B. Hatcher. Length, 4.65; wing, 2.65; tail, 2.75. Back 



