AnimaliaacceptedgenusAccepted
Agrenia

Agrenia

Borner

GBIF:127711376

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Descriptions(1)

Genus Agrenia Börner

The genus is well defined and was reviewed by Fjellberg (1986) and Fjellberg & Bernard (2009). In the course of our study of neustonic fauna two species were collected. One of them, supposedly a new species, belonged to ' bidenticulata ' group and differed from the widely distributed arctic species A. bidenticulata by longer claws. To clarify the independence of the Buryatian form we have studied other populations of A. bidenticulata from Russian Arctic and Siberian mountains.

Potapov, Mikhail, Gulgenova, Ayuna, Babykina, Marina (2016): Isotomidae (Collembola) of Buryat Republic. III. The genera Vertagopus and Agrenia, with a note on ' Claw index'. Zootaxa 4088 (1): 112-128, DOI: 10.11646/zootaxa.4088.1.5MagnoliaPress via PlaziNo known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.

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Source Information

Isotomidae (Collembola) of Buryat Republic. III. The genera Vertagopus and Agrenia, with a note on ' Claw index'

checklist

This dataset contains the digitized treatments in Plazi based on the original journal article Potapov, Mikhail, Gulgenova, Ayuna, Babykina, Marina (2016): Isotomidae (Collembola) of Buryat Republic. III. The genera Vertagopus and Agrenia, with a note on ' Claw index'. Zootaxa 4088 (1): 112-128, DOI: 10.11646/zootaxa.4088.1.5

Abstract

Two genera are revised based on material from Buryatia (Russia, East Siberia). Vertagopus ceratus sp. nov. and V. asiaticus sp. nov. are described of which the former species is strictly alpine and is defined by pale colouration, the presence of chaetae on the anterior side of the ventral tube, and abundant sensillar chaetotaxy. V. asiaticus sp. nov. is widely distributed in Asia and is unusual due to only 9 chaetae in apical whorl on tibiotarsi. A key to species of Vertagopus Börner, recorded in the republic is given, and notes on morphology, distribution, and ecology are provided. In the genus Agrenia Börner, a form similar with A. bidenticulata was recorded in mountainous areas. Buryatian populations considerably differ from the diagnosis of the typical arctic A.bidenticulata (Tullberg) by a much longer claw. A conception of A. bidenticulata sensu lato complex is temporarily proposed basing on available materials from Palearctic, including High Arctic, sub-Arctic and South Siberian mountains. The complex consists of several local forms which are different in Claw index and associated Tibiotarsus/Claw ratio, while the dependence of the two indexes on the latitude is shown.

Key words: distribution area of species, Baikal, Buryatia, new species, springtails

Potapov M, Gulgenova A, Babykina M, Agosti D (2016). Isotomidae (Collembola) of Buryat Republic. III. The genera Vertagopus and Agrenia, with a note on ' Claw index'. Plazi.org taxonomic treatments database. Checklist dataset https://doi.org/10.11646/zootaxa.4088.1.5 accessed via GBIF.org on 2026-06-15.

CC0Published 12/31/2016View dataset
GBIF Usage Key
127711376
Dataset Key
5e75397d-e57b-4f20-b80e-cbd257b04235
Origin
source
Backbone Key
4289831
Taxon ID
256B931EFFCCFFA0FF3A487DFE0FF8BD.taxon
Last Crawled
6/11/2026
Last Interpreted
6/11/2026