Una nueva especie del grupo Hyloscirtus larinopygion (Amphibia: Anura: Hylidae) del suroccidente de Colombia

Abstract

Se describe una nueva especie del grupo Hyloscirtus larinopygion del Nudo de los Pastos en el departamento de Nariño, Colombia. Hyloscirtus tigrinus sp. nov. puede ser distinguida fácilmente de sus especies similares por la presencia de un tubérculo calcar carnoso y prominente, además de su distintivo patrón de coloración. Se realizan algunos comentarios sobre la coloración de la garganta y coloración ventral en Hyloscirtus caucanus, H. larinopygion, H. lindae y H. tigrinus. La coloración de la garganta es altamente variable, por lo tanto no puede ser utilizada para diagnosticar a estas especies.<br>A new species of the Hyloscirtus larinopygion group from Nudo de los Pastos, Nariño department, Colombia is described. Hyloscirtus tigrinus sp. nov. can be distinguished easily from similar species by the presence of a fleshy and prominent calcar tubercle and by its distinctive color pattern. Some remarks on throat and ventral coloration in Hyloscirtus caucanus, H. larinopygion, H. lindae and H. tigrinus are presented. The throat coloration is highly variable and cannot be used to diagnose any of these species

A new treefrog from Cordillera del Cóndor with comments on the biogeographic affinity between Cordillera del Cóndor and the Guianan Tepuis (Anura, Hylidae, Hyloscirtus)

“…Hyloscirtustapichalaca differs from H.hillisi by having a brown dorsum without orange marks (orange marks present in H.hillisi ) and white disks on fingers and toes (disks are dark brown in H.hillisi ). The remaining species of the H.larinopygion group lack the enlarged claw-like prepollex (Ardila-Robayo et al 1993; Mueses-Cisneros and Anganoy-Criollo 2008; Mueses-Cisneros and Perdomo-Castillo 2011; Ruiz-Carranza and Lynch 1982; Rivera-Correa et al 2016).…”

Molecular phylogenetics of stream treefrogs of the Hyloscirtus larinopygion group (Anura: Hylidae), and description of two new species from Ecuador

“…Faivovich et al (2005) diagnosed the group by 32 molecular features of three species (Hyloscirtus tapichalaca, H. pantostictus, H. pacha), resurrected the name Hyloscirtus from its synonym with Hyla (Duellman 1970), and included ten species in the group (H. caucanus, H. larinopygion, H. lindae, H. pacha, H. pantostictus, H. psarolaimus, H. ptychodactylus, H. sarampiona, H. staufferorum, H. tapichalaca), founded on a previous morphology-based taxonomy. More recently, one new species (H. tigrinus) was added to the group by Mueses-Cisneros (2008). Wiens et al (2010) included four species of the group (H. lindae, H. tapichalaca, H. pantostictus, H. pacha) in molecular analyses based on mitochondrial and nuclear sequence data.…”

A New Species ofHyloscirtus(Anura: Hylidae) from Colombia, with a Rediagnosis ofHyloscirtus larinopygion(Duellman, 1973)

“…There seems to be little variation in Hyloscirtus in this regard (the two species of the H. armatus group being the exception; see Faivovich et al, 2005). However, for what we consider to be similar morphologies, different authors have referred to as dermal fringes (e.g., Duellman and Altig, 1978;Ruiz-Carranza and Lynch, 1982;Ardila-Robayo et al, 1993;Mueses-Cisneros and Anganoy-Criollo, 2008), explicitly mentioned their absence (Duellman and Coloma, 1993;Coloma et al, 2012) omitted any mention of them (Duellman, 1972(Duellman, , 1973Duellman and Berger, 1982;Duellman and Hillis, 1990). Kizirian et al (2003), for example, described the fingers of H. tapichalaca as lacking lateral fringes but being broad.…”

“…Hyloscirtus tigrinus was defined mainly based on the coloration and the presence of a well-developed, fleshy, calcar tubercle (Mueses-Cisneros and Anganoy-Criollo, 2008). This character state is present only in the holotype (adult female).…”

“…The Hyloscirtus larinopygion group currently comprises 13 colorful species distributed in the Andes Mountains of Colombia and Ecuador: H. caucanus (Ardila-Robayo et al, 1993), H. criptico (Coloma et al, 2012), H. larinopygion (Duellman, 1973), H. lindae (Duellman and Altig, 1978), H. pacha (Duellman and Hillis, 1990), H. pantostictus (Duellman and Berger, 1982), H. princecharlesi (Coloma et al, 2012), H. psarolaimus (Duellman and Hillis, 1990), H. ptychodactylus (Duellman and Hillis, 1990), H. sarampiona (Ruiz-Carranza and Lynch, 1982), H. staufferorum (Duellman and Coloma, 1993), H. tapichalaca (Kizirian et al, 2003), and H. tigrinus Mueses-Cisneros and Anganoy- Criollo, 2008. Species included in the H. larinopygion group have relatively restricted ranges, although H. larinopygion is widely distributed in the Cordillera Central and Occidental in Colombia and is present in Provincia de Carchi in northern Ecuador. While studying material identified in collections as H. larinopygion from the northern Cordillera Central, in the Departamento de Antioquia, Colombia, it became evident that the specimens actually correspond to a different and new species.…”