18S5.] Ridgway on Helminthophila leucobrorichialis. ^61 



the theory which supposes the entire scries to be hybrids of 

 H. chrys iptera and //. plnus alone, <>r of their progeny inter se. 



I. Typical Specimens of //• leucobrorichialis. 



Characters. — Throat and cheeks pure white; postocular black or 

 dusky streak very narrow, not involving the auriculars; breast white, or 

 but very faintly tinged vvitli yellow; wing-patch, or bands, yellow. 



(1) The type, an adult $ from Newtonville, Mass., May iS, 1870. | Cf. 

 Brewster, Bull. Null. Orn. Club, I, p. 1, pi. i.) 



(2) An adult $ shot by Christopher I). Wood, near Clifton, Delware 

 Co., Penn., May 12, 1S77. (C/ Trotter, Bull. Nutt. Orn. Club, [I, pp. 79, 

 So.) 



(3) An adidt $ in the collection of the Philadelphia Academy of 

 Natural Sciences, supposed to have hern shot byj. G. Bell at Rockland, 

 N. Y.. in the spring of 1832. ( Cf. Trotter, Bull. Nutt. Orn. Club, 111, 

 p. 44; IV, p. 59.) 



(4) An adult $ shot at Wauregan, Conn., May 25, 1875, by Charles 

 M. Carpenter. {Cf. Brewster, Bull, Nutt. Orn. Club, 111. p. 99. | 



(5) An adult J obtained at Sull'ield, Conn., July 3, 1875, by K. 1. Shores, 

 {Cf Brewster, Bull. Nutt. Orn. Club, III, p. 199.) 



(6) An adult J in collection of Williams College, Williamstown, Mass., 

 obtained at Hudson, Mass., in May or June, 1858, by Samuel Jillson. {Cf 

 Purdie. Bull. Nutt. Orn. Club. IV, p. [84.) 



(7) An adult J shot, near Arlington, Va., May 15, 1S85, by William 

 Palmer, and bv him presented to the National Museum (museum register 

 No. 104,684). {Cf. Palmer, Auk, II, p. 304.) 



II. Presumed hybrids or- //. leucobronchialis and //. pinus, <>u of 



THE FORMER Willi THE (Ross BETWEEN //. pitlUS AND 



• //. chrysoftera (= '■H. latvrexcei Merrick.'). 



Characters — Throat white, sometimes faintly tinged with yellow; 

 breast yellow; gray of upper parts tinged with olive-green. 



a. Wing-band, or fatch, yellow. 



(1) An adult $ taken at Portland, Conn., by Williarn-W. Coe,May22, 

 1S7 5. I las "a broad band or blotch" of yellow on the breast, while "I he 

 whole dorsal plumage, from the crown, is faintly washed with the same 

 tint." {Cf. Purdie, Bull. Nutt. Orn. Club, IV, p. 184.) 



(2) An adult cf taken at Saybrook, Conn., May 30, 1879, h yJ- N - Clark. 

 Has "a patch of bright yellow across the breast from the bend of the 

 wings." {Cf. Purdie, 1. c.) 



(3) Ayoungbird (sex unknown) taken by Dr. E. A. Mearns at High- 

 land Falls, N. V*., July 7, 1879 'Coll. W. Brewster, No. 4,668). Specimen 

 number 4 under//, lawrencei (No. 4,667, Coll. W. Brewster), said to 



