155a. 
155b. 
156. 
156a. 
90 
incomplete band on outer feathers ; body 
below regularly banded with silvery white 
and slaty grey. 
Asturina nitida pallida Todd, Proc. Biol. 
Soc., Wash., xxviii., p. 170 (1915). [Rio 
Surutu. | 
Bolivian Buzzard-Hawk. 
Above a shade lighter and purer bluish- 
grey; below with dark barring slightly 
narrower. 
Asturina mitida costaricensis subsp. nov. 
[$ Pozo del Rio Grande, Bornea, Costa Rica, 
April 5, 1906, type in M.C.Z., Harvard.| 
Wing $ 237, 9 250 mm.; above much 
duller, approaching plagiata, the paler 
bands nearly obsolete ; below with slate 
bands duller and broader, white bands 
narrower. 
Asturina plagiata plagiata (Licht.) Nom. 
Mus. Berol. p. 3 (1854). [Nom. nud.] Schl. 
Mus. Pays-Bas, i., Asturine, p. 1 (1862). 
[Vera Cruz.] 
Mexican Goshawk. 
Wing 3 248-253, 2 270-278 mm.; above 
ashy-grey without white bars; head and 
nape lighter ; tail with whitish band across 
middle with remains of another nearer 
base ; longer upper tail-coverts pure white ; 
below banded as A. n. mitida. 
Asturina plagiata minor Griscom, Am Mus. 
Novitates, Nov., 1921, (1921).[ Pugres, 
Costa Rica, type in Am. Mus. N. H.] 
Costa Rican Goshawk. 
E. Bolivia. 
Central 
America 
(Costa Rica). 
Mexico, 
N. to S. Arizona 
and Lower 
Rio Grande 
Valley. 
Costa Rica, 
Nicaragua. 
