A new species of Leptodactylus belonging to the L. fuscus species group, and related to the L. mystaceus complex, is described from the Lagoa das Bromélias (20 o 53'S, 42 o 31'W; 1,227 m above sea level), Parque Estadual da Serra do Brigadeiro, Municipality of Ervália, State of Minas Gerais, Southeastern Brazil. Leptodactylus cupreus sp. nov. is characterized by the large size for the group (SVL 50.1-55.1 mm in males) and color pattern. The new species has a non-pulsed advertisement call, with call rate about 12 calls/s and a dominant frequency between 2,800 and 3,058 Hz.
Material and methodsExamined specimens are housed at the Museu Nacional, Rio de Janeiro, Brazil (MNRJ) and Museu de História Natural João Moojen de Oliveira, Viçosa, Brasil (MZUFV). Comparative specimens are referred in the Appendix 1.Measurements were taken with digital calipers. Abbreviations of the measurements (in mm) are: SVL (snout-vent length); HL (head length); HW (head width); IND (internarial distance); END (eye to nostril distance); ED (eye diameter); UEW (upper eyelid width); IOD (interorbital distance); TD (tympanum diameter); HAL (hand length); THL (thigh length); TL (tibia length); FL (foot length). Morphological terminology follows Heyer et al. (1990).Specimens were recorded with a Panasonic RQ-L11 tape recorder on 08 October 2006, at 20 o C air temperature, by R. N. Feio. Calls were digitized from the same tape recorder to avoid velocity alterations and quality loss; and the digitized file did not present differences to the actual call when compared to hearing. Calls were digitized at a sampling rate of 22,050 Hz and resolution of 16 bits. Sound analyses were performed with the program Avisoft-SASLab Light for Windows, version 3.74 (www.avisoft.com). A sonogram was produced utilizing the following parameters: Bandwidth = 323 Hz; FFT length = 256; Frame = 100; Window = Flat Top; Overlap = 75; Time resolution = 2.90 ms; Contrast = char3.gray. Oscillograms and power spectrum of the calls were obtained with the program Sound Ruler Acoustic Analysis, version 0.9.6.0 (http://soundruler.sf.net). Terminology used for call description follows Duellman and Trueb (1994).
ResultsLeptodactylus cupreus sp. nov. (Figures 1-3) Holotype: MNRJ 47752. Adult male (Figure 1). Lagoa das Bromélias (20 o 25'S, 43 o 29'W, 1,227 m above sea level), Parque Estadual da Serra do Brigadeiro, District of Careço, Municipality of Ervália, State of Minas Gerais, Southeastern Brazil. Collected by R.N. Feio and V.A. São-Pedro, on 08 October 2006.FIGURE 1.Leptodactylus cupreus sp. nov., holotype (MNRJ 47752, SVL 51.8 mm), dorsal and ventral views. CARAMASCHI ET AL. 46 · Zootaxa 1861