FIGURE 4. A in A new species of manakin (Aves: Pipridae; Machaeropterus) from Peru with a taxonomic reassessment of the Striped Manakin (M. regulus) complex

FIGURE 4. A comparison of "advertising songs" of some taxa in the Machaeropterus regulus complex. A) M. eckelberryi (PERU: Loreto dept.; ca 77 km WNW Contamana, ca. 1000m. 12 July 1996. D. F. Lane, XC170145). B) M. eckelberryi (PERU: San Martín dept.; Morro de Calzada, ca. 1000m. 29 July 2005. D. F. Lane, XC170143). C) M. regulus striolatus (PERU: Loreto dept.; Jeberos, ca. 350m. 15 June 2001. D. F. Lane, XC170138). D) M. r. striolatus (PERU: Loreto dept.; Oran, ca 200m. 24 July 2013. D. F. Lane, XC170139). E) M. r. aureopectus (VENEZUELA: Bolivar state; El Pauji. 4 December 2010. A. Renaudier, XC66415). F) M. r. antioquiae (COLOMBIA: Santander dept.; Serranía de la Quinchas, RNA El Paujíl. F. Lambert, XC16781). G) M. r. regulus (BRAZIL: Rio de Janeiro; Reserva Ecológica de Guapiaçu. J. Minns, XC82253). Notice the light flat lines (around 1kHz and 3 kHz) "underscoring" the notes of the songs in figures C-G, but lacking in A and B. Also note that the song of M. r. antioquiae (F) is very similar in structure to those of M. r. striolatus (C, D), but the spacing between the two main notes is longer. The dark band running above the loudest fundamental frequencies of the notes in C and D is insect noise. "XC####" refers to recordings available at www.xeno-canto.org/####.