Published May 8, 2025 | Version v1
Taxonomic treatment Open

Omorgus amictus

Description

Omorgus amictus (Haaf, 1954)

AUSTRALIA: WESTERN AUSTRALIA, SOUTH AUSTRALIA. Omorgus amictus has only been recorded from the Nullarbor Plain in southern Australia (Scholtz, 1986b), from where are numerous records from various caves (Moulds, 2004; Richards, 1971; Scholtz, 1986b). It has been collected from both the entrance zone and the dark zone of mostly shallow caves, but the species has also been taken from the soil surface and from rabbit warrens (Richards, 1971). Richards (1971) found that Omorgus amictus is in caves associated with bird guano, but not with bat guano. Outside caves, it has also been found on carcasses and skins. Since they can survive equally on the surface and in caves, it should be considered a troglophile (Moulds, 2004; Richards, 1971). Since its association with bird (not bat) guano is facultative, it is also categorised as a (bird-) guanophile (Moulds, 2004).

Notes

Published as part of Strümpher, Werner P. & Stals, Riaan, 2025, A world list of known cave- and bat guano-associated Trogidae (Coleoptera: Scarabaeoidea), and further range extension of Omorgus lindemannae (Petrovitz), pp. 1-11 in Faunitaxys 13 (9) on page 4, DOI: 10.57800/faunitaxys-13(09), http://zenodo.org/record/15366026

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Linked records

Additional details

Biodiversity

Scientific name authorship
Haaf
Kingdom
Animalia
Phylum
Arthropoda
Order
Coleoptera
Family
Trogidae
Genus
Omorgus
Species
amictus
Taxon rank
species
Taxonomic concept label
Omorgus amictus (Haaf, 1954) sec. Strümpher & Stals, 2025

References

  • Scholtz C. H., 1986 b. - Revision of the genus Trox Fabricius (Coleoptera: Trogidae) of the Australasian Region. Australian Journal of Zoology, Supplementary Series, 34 (125): 1-99. https://doi.org/10.1071/AJZS125.
  • Moulds T., 2004. - Review of Australian cave guano ecosystems with a checklist of guano invertebrates. Proceedings of the Linnean Society of New South Wales, 125: 1-42.
  • Richards A. M., 1971 - An ecological study of the cavernicolous fauna of the Nullarbor Plain Southern Australia. Journal of Zoology, London, 164 (1): 1-60 + Plates 1 - 6. https://doi.org/10.1111/j.1469-7998.1971.tb01297.x.