Taxonomic Revision and Phylogeny of the Genus<i> Peltocercyon</i> d'Orchymont, 1925 (Coleoptera: Hydrophilidae: Megasternini)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F25%3A106198" target="_blank" >RIV/60460709:41330/25:106198 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.11646/zootaxa.5671.1.1" target="_blank" >https://doi.org/10.11646/zootaxa.5671.1.1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11646/zootaxa.5671.1.1" target="_blank" >10.11646/zootaxa.5671.1.1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Taxonomic Revision and Phylogeny of the Genus<i> Peltocercyon</i> d'Orchymont, 1925 (Coleoptera: Hydrophilidae: Megasternini)

Popis výsledku v původním jazyce

The Asian-endemic genus Peltocercyon d'Orchymont, 1925 (Coleoptera: Hydrophilidae: Sphaeridiinae: Megasternini) is revised and redefined based on morphological characters and DNA data (five nuclear and three mitochondrial fragments). The metaventrite, with complete femoral lines crossing the arcuate ridges, is confirmed as the best diagnostic character for Peltocercyon in contrast to the morphology of the prosternum and mesoventrite which vary within the genus. DNA data reveal that Peltocercyon contains two separate lineages and that aedeagal morphology is more phylogenetically informative than external characters. A total of 17 species are recognized, of which nine are newly described: Peltocercyon basirugosus sp. nov. (China: Hainan, Yunnan; Laos: Bolikhamsai, Phongsaly Luang Prabang), P. carnarius sp. nov. (Indonesia: West Sumatra; Philippines: Mindanao; Malaysia: Sabah, Sarawak), P. kouwenkaii sp. nov. (China: Xizang), P. latifossus sp. nov. (Indonesia: Sumba), P. maculipennis sp. nov. (China: Taiwan, Sichuan, Chongqing, Guizhou and Guangxi; Laos: Houaphanh; Vietnam: Tam Dao; India: Arunachal Pradesh), P. medogensis sp. nov. (China: Xizang), P. rugosipennis sp. nov. (China: Xizang), P. splendidus sp. nov. (China: Xizang, Yunnan, Sichuan, Shaanxi, Hubei; India: Arunachal Pradesh), P. taylorae sp. nov. (China: Yunnan; Laos: Houaphanh, Phongsaly; India: Arunachal Pradesh). Three species are transferred to Peltocercyon from Cercyon Leach, 1817: Peltocercyon vagus (Sharp, 1884), comb. nov., P. vividus (d'Orchymont, 1925), comb. nov., and P. sanaii (Hoshina, 2008), comb. nov. Peltocercyon coomani d'Orchymont, 1925 is newly recorded from China, Laos, Thailand and Malaysia, P. lunulatus (Gemminger & Harold, 1868) from China, Laos, Malaysia, Cambodia and Myanmar, and P. vividus for Malaysia, Thailand and Indonesia. The closely related species P. maculipennis sp. nov., P. medogensis sp. nov., P. splendidus sp. nov. and P. taylorae sp. nov. are treated as the P. splendidus group. The Japanese and Far East species P. vagus (Sharp, 1884), P. subopacipennis (Nakane, 1965), P. sanaii (Hoshina, 2008), P. shigehisai Hoshina, 2018 and P. ohoni Hoshina, 2021 are treated as the P. vagus group, both groups being based on elytral sculpture, aedeagal morphology and distribution. Members of the P. vagus group are not treated taxonomically in detail due to limited material available. Diagnostic characters of all species and species groups are illustrated by photographs and SEM micrographs and an identification key and distribution maps of all species are provided. All known Peltocercyon inhabit decaying organic material; we provide the first hypothesis on the evolution of their habitat preferences.

Název v anglickém jazyce

Taxonomic Revision and Phylogeny of the Genus<i> Peltocercyon</i> d'Orchymont, 1925 (Coleoptera: Hydrophilidae: Megasternini)

Popis výsledku anglicky

The Asian-endemic genus Peltocercyon d'Orchymont, 1925 (Coleoptera: Hydrophilidae: Sphaeridiinae: Megasternini) is revised and redefined based on morphological characters and DNA data (five nuclear and three mitochondrial fragments). The metaventrite, with complete femoral lines crossing the arcuate ridges, is confirmed as the best diagnostic character for Peltocercyon in contrast to the morphology of the prosternum and mesoventrite which vary within the genus. DNA data reveal that Peltocercyon contains two separate lineages and that aedeagal morphology is more phylogenetically informative than external characters. A total of 17 species are recognized, of which nine are newly described: Peltocercyon basirugosus sp. nov. (China: Hainan, Yunnan; Laos: Bolikhamsai, Phongsaly Luang Prabang), P. carnarius sp. nov. (Indonesia: West Sumatra; Philippines: Mindanao; Malaysia: Sabah, Sarawak), P. kouwenkaii sp. nov. (China: Xizang), P. latifossus sp. nov. (Indonesia: Sumba), P. maculipennis sp. nov. (China: Taiwan, Sichuan, Chongqing, Guizhou and Guangxi; Laos: Houaphanh; Vietnam: Tam Dao; India: Arunachal Pradesh), P. medogensis sp. nov. (China: Xizang), P. rugosipennis sp. nov. (China: Xizang), P. splendidus sp. nov. (China: Xizang, Yunnan, Sichuan, Shaanxi, Hubei; India: Arunachal Pradesh), P. taylorae sp. nov. (China: Yunnan; Laos: Houaphanh, Phongsaly; India: Arunachal Pradesh). Three species are transferred to Peltocercyon from Cercyon Leach, 1817: Peltocercyon vagus (Sharp, 1884), comb. nov., P. vividus (d'Orchymont, 1925), comb. nov., and P. sanaii (Hoshina, 2008), comb. nov. Peltocercyon coomani d'Orchymont, 1925 is newly recorded from China, Laos, Thailand and Malaysia, P. lunulatus (Gemminger & Harold, 1868) from China, Laos, Malaysia, Cambodia and Myanmar, and P. vividus for Malaysia, Thailand and Indonesia. The closely related species P. maculipennis sp. nov., P. medogensis sp. nov., P. splendidus sp. nov. and P. taylorae sp. nov. are treated as the P. splendidus group. The Japanese and Far East species P. vagus (Sharp, 1884), P. subopacipennis (Nakane, 1965), P. sanaii (Hoshina, 2008), P. shigehisai Hoshina, 2018 and P. ohoni Hoshina, 2021 are treated as the P. vagus group, both groups being based on elytral sculpture, aedeagal morphology and distribution. Members of the P. vagus group are not treated taxonomically in detail due to limited material available. Diagnostic characters of all species and species groups are illustrated by photographs and SEM micrographs and an identification key and distribution maps of all species are provided. All known Peltocercyon inhabit decaying organic material; we provide the first hypothesis on the evolution of their habitat preferences.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10616 - Entomology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Zootaxa

ISSN

1175-5326

e-ISSN

1175-5326

Svazek periodika

5671

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NZ - Nový Zéland

Počet stran výsledku

74

Strana od-do

1-74

Kód UT WoS článku

001604027700001

EID výsledku v databázi Scopus

2-s2.0-105019734555