Taxonomic revision of boreus species group of Dichotomius Hope, 1838 (Coleoptera: Scarabaeidae: Scarabaeinae: Dichotomiini), with a description of two new species from western Amazon

IF 1.2 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger Pub Date : 2025-02-25 DOI:10.1016/j.jcz.2025.02.008

Ana B.G. Moura , Everton E. Nazaré-Silva , Marcely C. Valois , Jorge A. Arias-Buriticá , Fernando Z. Vaz-de-Mello , Fernando A.B. Silva

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Abstract

Dung beetles play a crucial role in ecosystem functioning, particularly in the Neotropical regions. The boreus species group of the genus Dichotomius includes typical large tunneler species that often possess complex armatures on the head and pronotum. In this study, we recognize seven species within this group, mostly recorded in the Amazon region: Dichotomius boreus (Olivier, 1789), Dichotomius pelamon (Harold, 1869), Dichotomius podalirius (Felsche, 1901), Dichotomius prietoi (Martínez and Martínez, 1981), Dichotomius quadrilobatus (Chamorro, Lopera-Toro & Rossini, 2021), Dichotomius uacari sp. n., and Dichotomius divisor sp. n. Lectotypes are designated for D. boreus, D. pelamon, D. podalirius, and Dichotomius carinatus. A new subjective synonymy is established D. carinatus = D. pelamon. This work provides a detailed literature review, an updated identification key, descriptions, diagnoses, a list of examined material, and geographic data for each species.

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来源期刊

Zoologischer Anzeiger 生物-动物学

CiteScore

2.80

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： Zoologischer Anzeiger - A Journal of Comparative Zoology is devoted to comparative zoology with a special emphasis on morphology, systematics, biogeography, and evolutionary biology targeting all metazoans, both modern and extinct. We also consider taxonomic submissions addressing a broader systematic and/or evolutionary context. The overall aim of the journal is to contribute to our understanding of the organismic world from an evolutionary perspective. The journal Zoologischer Anzeiger invites suggestions for special issues. Interested parties may contact one of the editors.