Wednesday, February 12, 2020

[Herpetology • 2020] Liolaemus balagueri • A New Species of Liolaemus (Iguania: Liolaemidae) of the group L. montanus from the coastal hills of Southern Peru


Liolaemus balagueri  
Paredes, Huamaní-Valderrama, Luque-Fernández, Poblete, et al., 2020


Abstract
The genus Liolaemus presents great diversity among the current tetrapods. It is the second genus with the highest number of valid species described of the Iguana infraorder. In this study, we described a new species of sand lizard from the coastal lomas of Quilca, La Chira and Ocoña that belongs to the subgenus Eulaemus and group of Liolaemus montanus, all in the province of Camaná, department of Arequipa, Peru. To determine the taxonomic status of this new organism, we analyzed morphological, molecular and geographical characters. The morphological characters allowed the characterization and diagnosis of the new species, the molecular data was used to make a Bayesian inference, and the geographic data served to determine potential distribution areas. This lizard diverges from the other species of the Liolaemus montanus group for its small to medium size, several sets of morphological characters, folidosis and color pattern. It is also the only species of the genus where the males have a pattern of lateral spots of rounded shape with dark border and green interior, from the armpits to the middle of the body. Additionally, the molecular phylogenetic results made with the Cyt-b gene indicate that it has no direct relationship with the phenetically similar species described for the group; nevertheless, there is a relationship with geographically close populations, which has not been properly described. Finally, it was determined that this lizard has a very marked endemism and its populations are not abundant.

Keywords: lizard, taxonomy, desert, Camaná, Arequipa

 Fig. 2. A. Side view of a male adult of Liolaemus balagueri sp. nov. in the natural habitat. B. Ventral view of the same specimen.  

Fig. 3. A. Side view of the female paratype (MUSA 5578) of Liolaemus balagueri sp. nov. in side view. B. Ventral view of the same specimen.

Liolaemus balagueri sp. nov.

Etimología: Dedicamos el nombre científico al Dr. Luis Balaguer Núñez (1964-2014), profesor principal e investigador incansable de la Cátedra de Ecología en la Universidad Complutense de Madrid, España. Particularmente, reconocemos su valiosa contribución al conocimiento del funcionamiento de los ecosistemas de las lomas de Atiquipa. Lamentablemente ya ha fallecido, pero dejó una gran escuela de futuros investigadores, tanto en Perú como en España.


Luis Villegas Paredes, Ling Huamaní-Valderrama, César Luque-Fernández, Roberto Carlos Gutiérrez Poblete, Aarón Josué Quiróz and Cristian Simón Abdala. 2020. A New Species of Liolaemus (Iguania: Liolaemidae) of the group L. montanus from the coastal hills of Southern Peru [Una nueva especie de Liolaemus (Iguania: Liolaemidae) perteneciente al grupo L. montanus en las lomas costeras del sur de Perú]. Revista de biologia tropical. 68(1)