A new genus and a new species of railroad-worm beetles from Bolivia (Coleoptera, Phengodidae, Mastinocerinae)

By

Silva Roza, André

Type

Article

Date of Publication

2025-3-31

Original Publication

Beiträge zur Entomologie

Volume

75

Series / Issue

Issue: 1

Pages

203--212

Subjects

Amboro , Biodiversity , Distribution , Morphology , Neotropical , systematics , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Berlin Akademie-Verlag 1951-1997

Identifiers

DOI: https://doi.org/10.3897/contrib.entomol.75.e143153

 

Abstract

Here I describe a new genus, Geiserocerusgen. nov., based on a single species, Geiserocerus flavifronssp. nov., from Parque Nacional Amboró, Santa Cruz, Bolívia. This new genus can be easily separated from most Mastinocerinae genera by the presence of a ventral comb in the pro- and mesotarsomere I and by the medial teeth of the mandibles. I provide a modified key to Mastinocerinae genera with 12-segmented antennae and the pro- and mesotarsomere I with ventral combs, as well as illustrations of the diagnostic features for this new genus. Finally, I discuss the genus similarities with other phengodid genera in order to hypothesize the genus relationships in the family.