Ridgway.] 90 [May 21, 



Asturina pucherani J. et E. Verreaux, R. Z. 1855, 350. — Scl. and 



Salv., P. Z. S. 1869,133. 

 Falco gularis Licht., in Mus. Berol. 

 Rupornis gularis Licht., Nomenel., 3. 

 Asturina gularis Schleg., Mus. de Pays-Bas, Asturinoz, p. 4, 1862. 



Ch. Wing, 9.40-10.70; tail, 7.00-7.75; culmen, .65-.85; tarsus, 

 2.40-2.60; middle toe, 1.20-1.35. Ground color of the tail more or less 

 — frequently entirely — light rufous, much lighter than, and very dif- 

 ferent in color from, the back; crossed with 3-4 — sometimes appar- 

 ently 5 — narrow bands of black, much narrower than the rufous or 

 grayish. Rufous of the quills narrowly barred with black. Jugulum 

 always (?) striped with brown. Lower parts ochraceous-white, more 

 reddish on the tibiae, narrowly barred transversely with rufous, of 

 variable shade. Upper parts dusky grayish brown. Lores whitish. 

 Adult. Head uniform blackish brown, streaked with white on the 

 throat. Young. Whole head striped; tail more grayish. 



Hah. Paraguay, Buenos Ayres and Brazil (Mus. S. I.) ; Bolivia, 

 (Bridges); Prov. Yungas (D'Orb.). 



Specimens examined. Nat. Mus., 7; Philad. Acad., 6; Boston 

 Soc., 2. Total, 15. 



2. Buteo (Rupornis) leucorrhous (Quoy et Gaimard). 

 Falco leucorrhous Quoy et Gaim., Voy. Uranie, Zool., p. 91, t. xiii. 

 Nisus leucorrhous Tschudi, F. P. Aves, pp. 3 8, 103. 

 Asturina leucorrhous Bonap., Consp., p. 80. — Kaup, Isis, 1847, p. 

 199. — Schleg., Mus. Pays-Bas, Asturinoz, p. 5. — Scl. and 

 Salv., P. Z. S. 1869, 134. 

 Astur leucorrhous Pelz., Orn. Bras., p. 7.' 



Sp. ch. Wing, 7.80-9.20; tail, 6.00-6.50; culmen, .65 ; tarsus, 

 2.25-2.35; middle toe, 1.25-1.30. Fourth to fifth quill longest; 

 first shortest, or intermediate between ninth and tenth. Adult. 

 Uniform brownish black; base of tail, upper and lower tail coverts, 

 and lining of the wing, white, the latter with an ochraceous tinge; 

 inner side of tibiae chestnut-rufous; inner webs of primaries broadly 

 barred with white — sometimes nearly plain black. Tail faintly 

 tipped with grayish, and crossed by 2-3 faintly indicated bars of 

 grayish brown, these white on inner web. 



Hab. Northern South America; Brazil, vicinity of Rio, (Mus. 

 Vindob. and S. and G.); Venezuela, (Dyson in Brit. Mus., and Le- 

 vrandin Mus., Paris); Bogota, N. G. ; (Mus. S. G.); Peru, (Mus. 



