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 1.5 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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1838年冀中双翅目（鞘翅目：金龟科：金龟科：双翅目）翅目群的分类订正，并附亚马逊河西部两新种记述

蜣螂在生态系统功能中起着至关重要的作用，特别是在新热带地区。双角蝽属的北角蝽种群包括典型的大型隧道虫种，它们通常在头部和前额上具有复杂的枢椎。在本研究中，我们鉴定出该群中有7个物种，主要记录于亚马逊地区：Dichotomius boreus (Olivier, 1789), Dichotomius pelamon (Harold, 1869), Dichotomius podalius (Felsche, 1901), Dichotomius prietoi (Martínez和Martínez， 1981), Dichotomius quadrilobatus (Chamorro, Lopera-Toro &；Rossini, 2021)，双歧螨（Dichotomius uacari sp. n.）和二分螨（Dichotomius divisor sp. n.）的选型被指定为D. boreus， D. pelamon， D. podalius和carinatus。建立了一个新的主观同义词D. carinatus = D. pelamon。这项工作提供了详细的文献综述，更新的识别密钥，描述，诊断，检查材料列表，以及每个物种的地理数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.