KEY TO THE SURSPECIES OF ERIONOTUS PUNCTATUS.
a. Smaller (wing averaging less than 71 in adult males, less than 68 in adult females); adult females with lateral under parts distinctly darker than median portion.
- b. Paler; adult female more olivaceous. (South America in general.)
- bb. Darker; adult female more tawny or rufescent. (British Honduras to western Ecuador.)
aa. Larger (wing averaging 72.1 in adult male, 70.1 in adult female); adult female with lateral under parts not distinctly darker than median portion. (Gorgona Island, Bay of Panama.)
ERIONOTUS PUNCTATUS ATRINUCHA (Salvin and Godman).
SLATY ANTSHRIKE.
Similar to T. p. punctatus,[2] but adult male with gray of both upper and under parts darker and adult female with general coloration darker and less rufescent (more olivaceous), especially the pileim.[3]
Adult male. — Pileum black, more or less mixed with slate-gray on forehead (the latter sometimes extensively slate-gray barred or flecked with black); hindneck mixed black and slate-gray, sometimes uniform black; back mixed black and slate-gray (the former predominating), the feathers extensively pure white basally; scapulars and rump plain slate-gray; exterior row of scapulars black, broadly edged with white; wings black, all the wing-coverts conspicuously tipped with white, tertials broadly edged with white, the other remiges narrowly edged with light gray; upper tail-coverts black, broadly tipped with white; tail black, all the rectrices tipped with a large white spot, except middle pair, which are narrowly tipped with white or else wholly black; outermost rectrix, on each side, with a quadrate spot of white crossing outer web beyond middle portion;[4] superciliary region, sides of head and neck, and under
parts plain gray (no. 6) or slate-gray, the sides of head (often chin
- ↑ [Lanim] nævius Gmelin, Syst. Nat., i, pt. i, 1788, 308, not of p. 304. — Tityra cayanensis, female! (Cayenne); Latham, Index Orn., i, 1790, 81. — Thamnophilus nævius (not of Vieillot, 1816) Swainson, Zool. Journ., ii, no. v, April, 1825, 90; Orn. Drawings, pl. 59; Sclater, Cat. Birds Brit. Mus., xv, 1890, 197, part. — E[nonotus] naevius Cabanis and Heine, Mus. Hein., ii, 1859, 16. — Lanius punctatios Shaw, Gen. Zool., vii, pt. ii, 1809, 327 (based on "Le Tachet. Levaill[ant] Ois." [pl. 77, fig. 1]). — (?) Thamnophilus nævius albiventris Taczanowski, Orn. du Pérou, ii, 1884, 9. — T[hamnophilus] naevius naevius Hellmayr, Abh. K. B. Akad. Wiss., ii kl., xxii Bd., iii Abt., 1905, 659 (crit.).
- ↑ See "Key," top of this page.
- ↑ This is an unsatisfactory subspecies, and I am doubtful as to its validity. Both very dark and light colored examples occur among specimens from Bogotá, and I find it extremely difficult to correlate the color differences with geographic distribution.
- ↑ The second and third pairs (counting from outside) are sometimes similarly marked.
