Taxonomic notes on the Phalotris bilineatus group (Serpentes: Dipsadidae: Elapomorphini), with the description of a new species from northwestern Argentina

GIRAUDO, A.; NENDA, S.; SCROCCHI, G.

CUADERNOS DE HERPETOLOGíA

ASOCIACIÓN HERPETOLÓGICA ARGENTINA

Lugar: San Miguel de Tucumán; Año: 2022 vol. 36 p. 47 - 63

0326-551X

The examination of 93 specimens of the Phalotris bilineatus group housed in the major Argentinian collections allowed us to recognize three additional species of this group. We propose the resurrection of two names, Phalotris spegazzinii and Phalotris suspectus, previously placed in the synonymy of P. bilineatus, and describe a new species from  northwestern Argentina. The new species is recognized based on a unique combination of morphological characters. In addition, we redescribe the resurrected taxa (providing variation in color patterns, meristic and morphometric characters) and present new data on their geographic distributions.