Extinct before discovered? Epactoides giganteus sp. nov. (Coleoptera, Scarabaeidae, Scarabaeinae), the first native dung beetle to Réunion island

We describe a new species of dung beetle, Epactoides giganteus sp. nov., from a single female specimen allegedly collected in the 19th century on Réunion island and recently found at the Muséum national d’Histoire naturelle, Paris. This species differs from other species of Epactoides by larger size...

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Main Authors: Michele Rossini, Fernando Z. Vaz-de-Mello, Olivier Montreuil, Nicholas Porch, Sergei Tarasov
Format: Article
Language:English
Published: Pensoft Publishers 2021-10-01
Series:ZooKeys
Online Access:https://zookeys.pensoft.net/article/70130/download/pdf/
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author Michele Rossini
Fernando Z. Vaz-de-Mello
Olivier Montreuil
Nicholas Porch
Sergei Tarasov
author_facet Michele Rossini
Fernando Z. Vaz-de-Mello
Olivier Montreuil
Nicholas Porch
Sergei Tarasov
author_sort Michele Rossini
collection DOAJ
description We describe a new species of dung beetle, Epactoides giganteus sp. nov., from a single female specimen allegedly collected in the 19th century on Réunion island and recently found at the Muséum national d’Histoire naturelle, Paris. This species differs from other species of Epactoides by larger size and a set of other distinctive morphological characters. Epactoides giganteus sp. nov. is the first native dung beetle (Scarabaeinae) of Réunion, and its discovery expands the known area of distribution of the genus Epactoides, which was hitherto believed to be endemic to Madagascar. Like other taxa from Madagascar and peripheral islands (e.g., Comoro, Seychelles, Mascarenes), E. giganteus sp. nov. may have reached Réunion by over-water dispersal. Given the rapid loss of biodiversity on Réunion island and the fact that no additional specimens were re-collected over the last two centuries, it is very likely that E. giganteus sp. nov. has gone extinct. However, we have unconfirmed evidence that the holotype of E. giganteus sp. nov. might be a mislabeled specimen from Madagascar, which would refute the presence of native dung beetles on Réunion. We discuss both hypotheses about the specimen origin and assess the systematic position of E. giganteus sp. nov. by examining most of the described species of Madagascan Epactoides. Additionally, we provide a brief overview of the dung beetle fauna of Mascarene Archipelago.
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spelling doaj.art-0b9d97ba62524eddb4ab0745a0c87a162022-12-21T23:35:55ZengPensoft PublishersZooKeys1313-29702021-10-011061758610.3897/zookeys.1061.7013070130Extinct before discovered? Epactoides giganteus sp. nov. (Coleoptera, Scarabaeidae, Scarabaeinae), the first native dung beetle to Réunion islandMichele Rossini0Fernando Z. Vaz-de-Mello1Olivier Montreuil2Nicholas Porch3Sergei Tarasov4University of HelsinkiUniversidade Federal de Mato GrossoMuséum National d’Histoire NaturelleDeakin UniversityUniversity of HelsinkiWe describe a new species of dung beetle, Epactoides giganteus sp. nov., from a single female specimen allegedly collected in the 19th century on Réunion island and recently found at the Muséum national d’Histoire naturelle, Paris. This species differs from other species of Epactoides by larger size and a set of other distinctive morphological characters. Epactoides giganteus sp. nov. is the first native dung beetle (Scarabaeinae) of Réunion, and its discovery expands the known area of distribution of the genus Epactoides, which was hitherto believed to be endemic to Madagascar. Like other taxa from Madagascar and peripheral islands (e.g., Comoro, Seychelles, Mascarenes), E. giganteus sp. nov. may have reached Réunion by over-water dispersal. Given the rapid loss of biodiversity on Réunion island and the fact that no additional specimens were re-collected over the last two centuries, it is very likely that E. giganteus sp. nov. has gone extinct. However, we have unconfirmed evidence that the holotype of E. giganteus sp. nov. might be a mislabeled specimen from Madagascar, which would refute the presence of native dung beetles on Réunion. We discuss both hypotheses about the specimen origin and assess the systematic position of E. giganteus sp. nov. by examining most of the described species of Madagascan Epactoides. Additionally, we provide a brief overview of the dung beetle fauna of Mascarene Archipelago.https://zookeys.pensoft.net/article/70130/download/pdf/
spellingShingle Michele Rossini
Fernando Z. Vaz-de-Mello
Olivier Montreuil
Nicholas Porch
Sergei Tarasov
Extinct before discovered? Epactoides giganteus sp. nov. (Coleoptera, Scarabaeidae, Scarabaeinae), the first native dung beetle to Réunion island
ZooKeys
title Extinct before discovered? Epactoides giganteus sp. nov. (Coleoptera, Scarabaeidae, Scarabaeinae), the first native dung beetle to Réunion island
title_full Extinct before discovered? Epactoides giganteus sp. nov. (Coleoptera, Scarabaeidae, Scarabaeinae), the first native dung beetle to Réunion island
title_fullStr Extinct before discovered? Epactoides giganteus sp. nov. (Coleoptera, Scarabaeidae, Scarabaeinae), the first native dung beetle to Réunion island
title_full_unstemmed Extinct before discovered? Epactoides giganteus sp. nov. (Coleoptera, Scarabaeidae, Scarabaeinae), the first native dung beetle to Réunion island
title_short Extinct before discovered? Epactoides giganteus sp. nov. (Coleoptera, Scarabaeidae, Scarabaeinae), the first native dung beetle to Réunion island
title_sort extinct before discovered epactoides giganteus sp nov coleoptera scarabaeidae scarabaeinae the first native dung beetle to reunion island
url https://zookeys.pensoft.net/article/70130/download/pdf/
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