Two new species of Formicoxenus Mayr 1855 and Leptothorax Mayr 1855 from Tibet (Hymenoptera: Formicidae)

The Palaearctic species of the socially parasitic ant genus Formicoxenus Mayr 1855 are taxonomically revised. A numeric analysis of phenotypical characters in workers showed a close relatedness of the three Palaearctic Formicoxenus species and a strong separation from the six independent Palaearcti...

Full description

Bibliographic Details
Main Author: Bernhard Seifert
Format: Article
Language:English
Published: Senckenberg Gesellschaft für Naturforschung 2023-08-01
Series:Soil Organisms
Subjects:
Online Access:https://soil-organisms.org/index.php/SO/article/view/315
_version_ 1797767560362459136
author Bernhard Seifert
author_facet Bernhard Seifert
author_sort Bernhard Seifert
collection DOAJ
description The Palaearctic species of the socially parasitic ant genus Formicoxenus Mayr 1855 are taxonomically revised. A numeric analysis of phenotypical characters in workers showed a close relatedness of the three Palaearctic Formicoxenus species and a strong separation from the six independent Palaearctic species of the genus Leptothorax Mayr 1855. Myrmica laeviuscula Foerster 1850, Myrmica lucidula F. Smith 1858 and Formicoxenus nitidulus var. picea Wasmann 1906 are synonymized with Formicoxenus nitidulus (Nylander 1846) whereas Formicoxenus orientalis Dlussky 1963 and Leptothorax zhengi Zhou et Chen 2011 are established as junior synonyms of Formicoxenus sibiricus (Forel 1899). The new species Formicoxenus gebaueri n.sp. is described from NE Tibet. It was found as a guest ant in a nest of an undescribed species of the ant subgenus Serviformica Forel 1913. The very plastic host selection of Palaearctic Formicoxenus species is explained by the presence of a fully functional worker caste. Leptothorax tibeticum n.sp., a species related to L. muscorum (Nylander 1846), is described from the high Tibetan Plane. A key to the workers of Formicoxenus species and independent Leptothorax species of the Palaearctic is provided and each species is depicted by z-stack images in three visual positions.
first_indexed 2024-03-12T20:41:37Z
format Article
id doaj.art-dc93b3dda43e4980a882d722bdedbdb7
institution Directory Open Access Journal
issn 1864-6417
2509-9523
language English
last_indexed 2024-03-12T20:41:37Z
publishDate 2023-08-01
publisher Senckenberg Gesellschaft für Naturforschung
record_format Article
series Soil Organisms
spelling doaj.art-dc93b3dda43e4980a882d722bdedbdb72023-08-01T08:56:03ZengSenckenberg Gesellschaft für NaturforschungSoil Organisms1864-64172509-95232023-08-0195210.25674/so95iss2id315Two new species of Formicoxenus Mayr 1855 and Leptothorax Mayr 1855 from Tibet (Hymenoptera: Formicidae)Bernhard Seifert0Senckenberg Museum of Natural History Görlitz The Palaearctic species of the socially parasitic ant genus Formicoxenus Mayr 1855 are taxonomically revised. A numeric analysis of phenotypical characters in workers showed a close relatedness of the three Palaearctic Formicoxenus species and a strong separation from the six independent Palaearctic species of the genus Leptothorax Mayr 1855. Myrmica laeviuscula Foerster 1850, Myrmica lucidula F. Smith 1858 and Formicoxenus nitidulus var. picea Wasmann 1906 are synonymized with Formicoxenus nitidulus (Nylander 1846) whereas Formicoxenus orientalis Dlussky 1963 and Leptothorax zhengi Zhou et Chen 2011 are established as junior synonyms of Formicoxenus sibiricus (Forel 1899). The new species Formicoxenus gebaueri n.sp. is described from NE Tibet. It was found as a guest ant in a nest of an undescribed species of the ant subgenus Serviformica Forel 1913. The very plastic host selection of Palaearctic Formicoxenus species is explained by the presence of a fully functional worker caste. Leptothorax tibeticum n.sp., a species related to L. muscorum (Nylander 1846), is described from the high Tibetan Plane. A key to the workers of Formicoxenus species and independent Leptothorax species of the Palaearctic is provided and each species is depicted by z-stack images in three visual positions. https://soil-organisms.org/index.php/SO/article/view/315cryptic speciesnumeric morphology-based alpha-taxonomyinquilineshost specifity
spellingShingle Bernhard Seifert
Two new species of Formicoxenus Mayr 1855 and Leptothorax Mayr 1855 from Tibet (Hymenoptera: Formicidae)
Soil Organisms
cryptic species
numeric morphology-based alpha-taxonomy
inquilines
host specifity
title Two new species of Formicoxenus Mayr 1855 and Leptothorax Mayr 1855 from Tibet (Hymenoptera: Formicidae)
title_full Two new species of Formicoxenus Mayr 1855 and Leptothorax Mayr 1855 from Tibet (Hymenoptera: Formicidae)
title_fullStr Two new species of Formicoxenus Mayr 1855 and Leptothorax Mayr 1855 from Tibet (Hymenoptera: Formicidae)
title_full_unstemmed Two new species of Formicoxenus Mayr 1855 and Leptothorax Mayr 1855 from Tibet (Hymenoptera: Formicidae)
title_short Two new species of Formicoxenus Mayr 1855 and Leptothorax Mayr 1855 from Tibet (Hymenoptera: Formicidae)
title_sort two new species of formicoxenus mayr 1855 and leptothorax mayr 1855 from tibet hymenoptera formicidae
topic cryptic species
numeric morphology-based alpha-taxonomy
inquilines
host specifity
url https://soil-organisms.org/index.php/SO/article/view/315
work_keys_str_mv AT bernhardseifert twonewspeciesofformicoxenusmayr1855andleptothoraxmayr1855fromtibethymenopteraformicidae