Pithys bicolor Lawrence, 1863b: 6 Gymnopithys leucaspis bicolor (Lawrence, 1863) Type Specimens Of Birds In The American Museum Of Natural History. Part 3. Passeriformes: Eurylaimidae, Dendrocolaptidae, Furnariidae, Formicariidae, Conopophagidae, And Rhinocryptidae LECROY, MARY SLOSS, RICHARD Bulletin of the American Museum of Natural History 2000 2000-10-30 2000 257 1 88 [104,247,1727,1748] Aves Laniidae Pithys Animalia Passeriformes 57 58 Chordata species albifrons  Ridgely and Tudor, 1994: 346.     HOLOTYPE: AMNH 184496, adult male, collected on the lower Río Suno, mouth of the Río Guataracu, 00°46′S, 77°15′W, Napo, Ecuador, on  8 March 1924(not 1926), by Alfonsoand Ramón Olalla.   COMMENTS: For a discussion of this locality, see  Myrmotherula hauxwelli suffusa.    Anoplops rufigula palidus[sic] Cherrie  Anoplops rufigula palidus[ sic] Cherrie, 1909: 390 ( Suapure, Caura River, Venezuela). Now  Gymnopithys rufigula pallida(Cherrie, 1909). See Phelpsand Phelps, 1963: 118, and Hackett, 1993.  HOLOTYPE: AMNH 73813, adult male, collected at Suapure, 07°14′N, 65°10′W, left bank of lower Río Caura, Bolívar, Venezuela, on  6 April 1899, by Samuel M. Klages.     Gymnopithys salvini maculataZimmer  Gymnopithys salvini maculataZimmer, 1937: 6(Lagarto, upper Río Ucayali, eastern Perú). Now  Gymnopithys salvini maculataZimmer, 1937. See Peters, 1951: 247, and Hackett, 1993.     HOLOTYPE AMNH 239152, adult female, collect- ed at Lagarto, 10°40′S, 73°54′W, right bank of the upper Río Ucayali, Ucayali, Peru, on  17 March 1928, by Alfonso M. Olalla.    Pithys bicolorLawrence    Pithys bicolorLawrence, 1863b: 6( New Granada). Now  Gymnopithys leucaspis bicolor(Lawrence, 1863).  See Hackett, 1993, and American Ornithologists’ Union, 1998: 369.   SYNTYPES: AMNH 43509, female, and AMNH 43510, male, collected on the Atlantic slope of the old Panamarailroad, Isthmus of Panama, Panama, by James McLeannan and John R. Galbraith. From the George N. Lawrence Collection.   COMMENTS: Cory and Hellmayr (1924: 303) gave the publication date of  Pithys bicoloras 1862, page 484 of volume 7 of the Annals of the Lycaeum of Natural History,  New York. In the AMNH Library bound copy of volume 7, the text ends on page 483 and the index begins on page 485; page 484 is unnumbered and blank. Volume 8 was published between 1863 and 1867. The description of  Pithys bicolorappeared on page 6 of volume 8, published in May 1863. For a discussion of the typelocality, see  Dendrornis nana. 1924-03-08 AMNH Ecuador Alfonso -0.76666665 lower Rio Suno 1308 -77.25 Rio Guataracu 57 58 AMNH 184496 1 Napo holotype 1899-04-06 AMNH Samuel M. Klages. Venezuela Cherrie 7.233333 Caura River 1303 -65.166664 Suapure 57 58 AMNH 73813 1 Bolivar holotype 1928-03-17 AMNH Alfonso M. Olalla. Peru -10.666667 Lagarto 1297 -73.9 57 58 AMNH 239152 1 Ucayali holotype