Two new species of the genus Platydecticus (Orthoptera: Tettigoniidae) from the Austral High Andean area in Central Chile

Authors

DOI:

https://doi.org/10.22201/ib.20078706e.2022.93.3962

Keywords:

High Andean, Eggs, Morphology, Taxonomy, Tettigoniinae

Abstract

Two new species of the genus Platydecticus are described, P. elguetai sp. nov. and P. atelcura sp. nov. Descriptions of both species are based on males, females and eggs. The new species are distributed in the High Andean area of Central Chile over 2,300 m asl. The new species are morphologically similar to P. angustifrons in the shape of the fastigium of vertex and cercus. The most relevant diagnostic features in the 2 new species are in the morphology of the pseudocercus, male subgenital plate, titillator, denticulation of the ovipositor, and micropyles distribution.

Author Biography

Alejandro Vera-Sánchez, Universidad Metropolitana de Ciencias de la Educación

Profesor Departamento de Biología e Instituto de Entomología de la Universidad Metropolitana de Ciencias de la Educación

References

Cigliano, M. M., Braun, H., Eades D. C. y D. Otte. (2021). Orthoptera species file. versión 5.0/5.0. [marzo 2021]. Disponible en: http://Orthoptera.SpeciesFile.org

Elgueta, M., Camousseight, A. y Carbonell, C. S. (1999). Catálogo de Orthoptera (Insecta) de Chile. Publicación ocasional 54, Museo Nacional de Historia Natural, Santiago de Chile.

Mugleston, J. D., Naegle, M., Song, H. y Whiting, M. F. (2018). A Comprehensive phylogeny of Tettigoniidae (Orthoptera: Ensifera) reveals extensive ecomorph convergence and widespread taxonomic incongruence. Insect Systematics and Diversity, 2, 1–27. https://doi.org/10.1093/isd/ixy010

Padró, A., Hechem, V. y Morrone, J. J. (2020). Biogeographic characterisation of the Austral High Andean district, Patagonian province, based on vascular plant taxa. Australian Systematic Botany, 33, 174–190. https://doi.org/10.1071/SB19005

Pocco, M. E., Posadas, P., Lange, C. E. y Cigliano, M. M. (2013). Patterns of diversification in the high Andean Ponderacris grasshoppers (Orthoptera: Acrididae: Melanoplinae). Systematic Entomology, 38, 365–389. https://doi.org/10.1111/syen.12001

Rentz, D. C. F. y Gurney, A. B. (1985). The shield-backed katydids of South America (Orthoptera: Tettigoniidae, Tettigoniinae) and a new tribe of Conocephalinae with genera in Chile and Australia. Entomologica Scandinavica, 16, 69–119.

Vera, A. (2014). Estudio comparativo de la morfología de huevos en Tettigoniinae (Insecta: Orthoptera) de Chile, mediante una aproximación con SEM. Gayana, 78, 97–104.

Vera, A. (2015). A new species of Platydecticus (Orthoptera: Tettigoniidae: Tettigoniinae; Nedubini) from the Andes of Chile. Zootaxa, 4040, 243–250. https://doi.org/10.11646/zootaxa.4040.2.10

Wallis, G. P., Waters, J. M., Upton, P. y Craw, D. (2016). Transverse Alpine speciation driven by glaciation. Trends in Ecology & Evolution, 31, 916–26. https://doi.org/10.1016 /j.tree.2016.08.009

Published

2022-08-08

Issue

Section

TAXONOMÍA Y SISTEMÁTICA