Incaspidini, Arredondo & Grazziotin & Scrocchi & Rodrigues & Bonatto & Zaher, 2020

Arredondo, Juan Camilo, Grazziotin, Felipe G., Scrocchi, Gustavo J., Rodrigues, Miguel Trefaut, Bonatto, Sandro Luís & Zaher, Hussam, 2020, Molecular phylogeny of the tribe Philodryadini Cope, 1886 (Dipsadidae: Xenodontinae): Rediscovering the diversity of the South American Racers, Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 60, pp. 1-14 : 8

Tribe Incaspidini , New tribe

Type-genus: Incaspis Donoso-Barros, 1974 , by original designation, resurrected.

Type species: Philodryas simonsii Boulenger, 1900 , by original designation.

Content: Incaspis Donoso-Barros, 1974 , resurrected.

Diagnosis: Members of the tribe Incaspidini can be distinguished from the other genera of Xenodontinae by the following combination of characters: maxillae diacranterian and opisthodont, with ungrooved postdiastemal teeth; hemipenes significantly longer than wide (up to 3.5 times), with large shallow body calyces on upper half of the asulcate region, numerous small-sized lateral enlarged spines, and a well-defined constriction in the proximal region of the hemipenial body ( Fig. 3 ).

Geographical distribution: Andean region in Southern Ecuador, Peru and possibly northern Chile.

Etymology: The singular of the genitive case of the second part of the tribe name (aspis) is aspides. Therefore, the correct spelling of the new tribe is Incaspidini .

Figures

Figure 3. Hemipenes of Chlorosomaviridissimum (MUSM 2403) in Aand B,and Incaspis amaru (FHGO 4749) inC and D. Photographs in Aand C arein sulcate views, and photographs in B and D are in asulcate views.Scale bars:5 mm.