Hyla perrini Dufresnes, Mazepa, Rodrigues, Brelsford, Litvinchuk, Sermier, Lavanchy, Betto-Colliard, Blaser, Borzée, Cavoto, Fabre, Ghali, Grossen, Horn, Leuenberger, Phillips, Saunders, Savary, Maddalena, Stöck, Dubey, Canestrelli, and Jeffries, 2018

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Hylinae > Genus: Hyla > Species: Hyla perrini

English Names

Po’s Tree Frog (original publication). 

Perrin's Tree Frog (Dufresnes, 2019, Amph. Eur., N. Afr., & Middle East: 63). 

Distribution

Po Plain and adjacent valleys in northern Italy and the Swiss canton of Ticino, into Slovenia. 

Comment

The sister taxon of Hyla intermedia and previously confused with that taxon according to Dufresnes, Mazepa, Rodrigues, Brelsford, Litvinchuk, Sermier, Lavanchy, Betto-Colliard, Blaser, Borzée, Cavoto, Fabre, Ghali, Grossen, Horn, Leuenberger, Phillips, Saunders, Savary, Maddalena, Stöck, Dubey, Canestrelli, and Jeffries, 2018, Frontiers Ecol. Evol., 6 (144): 1–18, who reported on the molecular phylogeography of the species, resulting in the northern (Po Valley) population of Hyla intermedia being recognized as Hyla perrini, which hybridizes with Hyla intermedia on the northeastern edge of the Apennines in Emilia Romagna, and with Hyla arborea along the Isonzo River of Italy/Slovenia. Gvoždík, Canestrelli, García-París, Moravec, Nascetti, Recuero, Teixeira, and Kotlík, 2015, Mol. Phylogenet. Evol., 83: 143–155, reported on molecular phylogenetics and biogeography, considering this a mtDNA-differentiated population ("Hyla intermedia North") of Hyla intermedia. See Dufresnes, 2019, Amph. Eur., N. Afr., & Middle East: 63, for brief summary of identifying morphology and biology, a range map, as well as a photograph. Dufresnes, Berroneau, Dubey, Litvinchuk, and Perrin, 2020, Sci. Rep. (Nature, London), 10 (5502): 1–10, discussed the genetics of the contact zones with Hyla arborea and Hyla intermedia. See Speybroeck, Beukema, Dufresnes, Fritz, Jablonski, Lymberakis, Martínez-Solano, Razzetti, Vamberger, Vences, Vörös, and Crochet, 2020, Amphibia-Reptilia, 41: 150, who discussed their reasons for treating this taxon as a subspecies of Hyla intermedia

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