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Issue: Vol. 5636 No. 3: 19 May 2025
Type: Article
Published: 2025-05-19
DOI: 10.11646/zootaxa.5636.3.11
Page range: 577-586
Abstract views: 88
PDF downloaded: 7

Platysognathus gen. nov. a new genus of railroad-worm beetle (Coleoptera: Phengodidae, Mastinocerinae) from Colombian Amazonía

Lab Zaragoza; Colección Nacional de Insectos; Instituto de Biología; Universidad Nacional Autónoma de México (UNAM); Posgrado en Ciencias Biológicas. CdMx; México; Posgrado en Ciencias Biológicas; Universidad Nacional Autónoma de México (Posgrado en Ciencias Biológicas; UNAM. Unidad de Posgrado; Edificio D; 1° Piso; Circuito de Posgrados; Ciudad Universitaria; Coyoacán; C.P. 04510; CDMX; México); Grupo de Entomología de la Universidad de Antioquia (GEUA); Universidad de Antioquia; Medellín; Colombia
Instituto de Ciencias Naturales (ICN); Instituto de Ciencias Naturales; Universidad Nacional de Colombia sede Bogotá; Bogotá; Colombia
Lab Zaragoza; Colección Nacional de Insectos; Instituto de Biología; Universidad Nacional Autónoma de México (UNAM); Posgrado en Ciencias Biológicas. CdMx; México; Colección Entomológica (IEXA); Instituto de Ecología; A.C. (INECOL); Xalapa; México
Instituto de Ciencias Naturales (ICN); Instituto de Ciencias Naturales; Universidad Nacional de Colombia sede Bogotá; Bogotá; Colombia
Lab Zaragoza; Colección Nacional de Insectos; Instituto de Biología; Universidad Nacional Autónoma de México (UNAM); Posgrado en Ciencias Biológicas. CdMx; México
Coleoptera Chibiriquete Yaigojé Apaporis Amazon forest Mastinocerinae Mandible

Abstract

A new genus, Platysognathus gen. nov., and its type species Platysognathus amazonicus sp. nov. are described with specimens collected in the Colombian Amazon. This genus presents two characteristics documented for the first time in the family: the presence of an irregularly rhomboid mandibular tooth and a serrated genital flagellum. These characteristics together with the presence of a slightly asymmetrical genitalia and tarsal combs in the first pro- and mesotarsomere separates Platysognathus from other genera of Phengodidae with 11 antennomeres. This is the first genus of Phengodidae described with material from the National Natural Parks “Yaigojé Apaporis” and “Serranía del Chibiriquete”, the latter being a natural and cultural heritage of humanity. This study, in addition to updating the state of knowledge of the group for the country, highlights the importance of natural parks as reservoirs of Phengodidae and insect diversity.

 

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How to Cite

Uchima-Taborda, D., Hortúa, A.L.D.L., Vega-Badillo, V., Fernández, F. & Zaragoza-Caballero, S. (2025) Platysognathus gen. nov. a new genus of railroad-worm beetle (Coleoptera: Phengodidae, Mastinocerinae) from Colombian Amazonía. Zootaxa, 5636 (3), 577–586. https://doi.org/10.11646/zootaxa.5636.3.11