80 TETKAONID^. 



Hybrid between Tympanuchus americanus and Pediocsetes 

 columbianus. 



Cupidonia cupidiui-columbiana, Breivst. Bull. Nutt. Orn. C. ii. p. 66 



(1877). 

 Pedioecetes phasianellusx Cupidonia cupido, Gurney, Auk, i. p. 391 



(1884). 



a. cJ ad. sk. North America. Purchased. 



3. Tympanuchus pallidicinctus. 



Cupidonia cupido, var. pallidicinctus, Ridgiu., in Baird, Breto., 8f 

 Rldgw. N. Am. B. iii. p. 446 (1874) [Texas] ; Laivr. Bull. Nutt. 

 Orn. C. ii. p. 52 (1877) [S. Missouri]; Merrill, P. U.S. Nat. Mtis. 

 i. p. 159 (1878) [S. Texas]. 



Cupidonia cupido pallidicincta, Coues, Key, p. 584 (1884). 



Tympanuchus pallidicinctus, Ridrpo. P. V.S. Nat. Mus. viii. p. 355 

 (1885) ; A. 0. U. Check-l. p. 175 (1886) ; Lloyd, Auk, iv. p. 187 

 (1887) [W. Texas] ; Ridgio. Man. p. 203 (1887). 



Adult male. Resembles the male of T. americanus, but is smaller 

 and easily distiugaished by having the darker subterminal bars on 

 the back treble, i. e. composed of a wider brown band in the middle 

 and two narrower black bands on each side, whereas in the latter 

 bird they are uniform black or have at most only a spot of brown 

 on the margin of each web ; the feathers of the chest have about 

 six alternate bars of brown and white and the bars are also much 

 narrower. Total length 15 inches, wing 8*3, tail 3-5, tarsus 1-6. 



Adult female. Differs from the male in having the neck-tufts 

 much shorter and the longest feathers buff barred with black ; all 

 the tail-feathers are barred with buff. 



Hah. Eastern border of Great Plains from Nebraska ('?), S.W. 

 Kansas, S.W. Missouri (?), and western part of Indian Territory to 

 W. Texas. 



a, 6. c? 2 ^^- sk. Kansas (1>. G. Elliot). Salvin-Godman Coll. 



c,d. cJ 2 ad. sk. Kansas, Feb. ((?. N. Laiu- Salvin-Godman Coll. 

 rence). 



8. CENTROCERCUS. r^ 



Type. 



Centrocercus, Swains. Faun. Bor.-A^ner. ii. pp. 342, 

 496 (1831) C. urophasianus. 



Tail composed of 20 feathers, elongate, wedge-shaped, and pointed, 

 the outer pair more than half the length of the middle pair. 



An inflatable air-sac on each side of the neck. 



1st primary much shorter than the 2nd, and falls between the 

 6th and 7th ; 4th rather longest. 



Axillaries long and white. 



Tarsi shorter than middle toe and claw. 



Range. N. America. 







