Published December 4, 2020 | Version v1
Taxonomic treatment Open

Lobohalacarus weberi

  • 1. Department of Invertebrate Zoology, Faculty of Biology, Saint Petersburg State University, 199034, Universitetskaya nab. 7 / 9, Saint Petersburg, Russia. & Marine Research Laboratory, Zoological Institute of the Russian Academy of Sciences, 199034, Universitetskaja nab. 1, Saint Petersburg, Russia.

Description

Lobohalacarus cf. weberi (Romijn & Viets, 1924)

Fig. 8

Material examined

REPUBLIC OF SOUTH AFRICA • 1 ♀; Cape Town, top of Table Mountain; approx. 33°57′43.9″ S, 18°24′38.0″ E; = 1000 m a.s.l.; 10 Jan. 2008; I. Nikolaeva leg.; moss on soil, wet depression with a small temporary pond; SPbU 256(20).

During sample processing, a single mite specimen from the family Halacaridae (Chelicerata, Trombidiformes) was found (Fig. 8A). In having an undivided ventral shield (Fig. 8B) and developed frontal spine (Fig. 8C) this specimen undoubtedly belongs to the Lobohalacarus weberi complex of species, and is the first record of this genus from southern Africa (Bartsch 2018). Apart from its nominative variable species Lobohalacarus weberi (Romijn & Viets, 1924), this complex includes several similar species and subspecies with unclear taxonomic status (Bartsch 1995 a, 2018). The studied specimen is similar to Lobohalacarus weberi tristanensis Bartsch, 1995 (known from Tristan da Cunha Islands only) by having genu I with two ventral spines (Fig. 8A, black arrows) and genital sclerites with two pairs of genital acetabula (Fig. 8D, white arrowheads), but differs from this form by having five pairs of perigenital setae (Fig. 8B, white arrowheads).

Notes

Published as part of Tumanov, Denis V., 2020, Integrative description of Mesobiotus anastasiae sp. nov. (Eutardigrada, Macrobiotoidea) and first record of Lobohalacarus (Chelicerata, Trombidiformes) from the Republic of South Africa, pp. 102-131 in European Journal of Taxonomy 726 (726) on page 114, DOI: 10.5852/ejt.2020.726.1179, http://zenodo.org/record/5628080

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Linked records

Additional details

Biodiversity

Collection code
SPbU
Event date
2008-01-10
Family
Halacaridae
Genus
Lobohalacarus
Kingdom
Animalia
Material sample ID
SPbU 256(20)
Order
Trombidiformes
Phylum
Arthropoda
Scientific name authorship
Romijn & Viets
Species
weberi
Taxon rank
species
Verbatim event date
2008-01-10
Taxonomic concept label
Lobohalacarus weberi (Romijn, 1924) sec. Tumanov, 2020

References

  • Bartsch I. 2018. Freshwater halacarid mites (Acari: Halacaridae) from Madagascar - new records, keys and notes on distribution and biology. Bonn zoological Bulletin 67 (2): 79 - 99. https: // doi. org / 10.20363 / BZB- 2018.67.2.079
  • Bartsch I. 1995 a. A new subspecies of the freshwater halacarid mite Lobohalacarus weberi (Romijn and Viets) (Halacaridae, Acari) from a Southern Atlantic Ocean island. Annals of the Cape Provincial Museums, Natural History 19: 171 - 180.
  • Meyer H. A., Tsaliki M. & Hinton J. G. 2018. First records of water bears (Phylum Tardigrada) from Swaziland. African Invertebrates 59 (1): 47 - 53. https: // doi. org / 10.3897 / AfrInvertebr. 59.23191