Biology:Rhaebus (beetle)

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Short description: Genus of seed beetles

Rhaebus
Rhaebus solskyi.jpg
Rhaebus solskyi
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Infraorder: Cucujiformia
Family: Chrysomelidae
Subfamily: Bruchinae
Tribe: Rhaebini
Blanchard, 1845[1]
Genus: Rhaebus
Fischer von Waldheim, 1824
Type species
Rhaebus gebleri
Fischer von Waldheim, 1824

Rhaebus (from the Greek: ῥαιβός curved) is a genus of metallic bean weevils in the subfamily Bruchinae, and the only member of the tribe Rhaebini.[2][3][4] It is restricted to the Palearctic region.[4]

Appearance

Rhaebus beetles are small, measuring between 3-5 millimetres in length, and are metallic in colour, which is rare in members if the Bruchinae subfamily. Their bodies are elongated in shape, and the antennae vary.[5]

Diet and life cycle

Rhaebus beetles feed exclusively on plants of the genus Nitraria, where their young also develop.[5][6][7]

Taxonomic history

The genus was first described in 1824 by Gotthelf Fischer von Waldheim in his book Entomographie de la Russie.[8] He described it with only one species, Rh. gebleri, making the genus monotypic.[5]

Species creation & synonymy

  • 1845: Rhaebus fischeri mentioned by Jean T. Lacordaire, not described.
  • 1845: Rhaebus mannerheimi named and described by Victor Motschulsky.
  • 1866: Rhaebus sagroides named and described by Simon Martinovitch Solsky.
  • 1867: Rhaebus beckeri named and described by Christian W. L. E. Suffrain. The original description (in German) is available from Wikimedia Commons.
  • 1869: Rh. beckeri and Rh. sagroides synonymized with Rh. mannerheimi by Victor Motchulsky.
  • 1879: Rhaebus solskyi proposed by Ernst Gustav Kraatz.
  • 1939: Rhaebus komarovi named and described by Fyodor Lukyanovich.
  • 1973: Rhaebus lukjanovitschi named and described by Margarita Ervandovna Ter-Minassian.
  • 2000: Rhaebus amnoni named and described by Igor Lopatin and Vladimir Chikatunov, after Dr. Amnon Freidberg.
  • 2022: Rh. amnoni, Rh. komarovi, and Rh. mannerheimi synonymized with Rh. gebleri by Andrei Legalov.

Species

Since a taxonomic review in August 2022, Rhaebus has three species:[6][9]

  • Rhaebus gebleri Fischer von Waldheim, 1824 (=Rh. mannerheimi, Rh. amnoni, Rh. komarovi) - Found in Turkey, Israel, Southern Russia, Kazakhstan, Mongolia, Inner Mongolia (China), and Kyrgyzstan.
  • Rhaebus lukjanovitschi Ter-Minassian, 1973 - Found in Mongolia and Inner Mongolia (China)
  • Rhaebus solskyi Kraatz, 1879 - Found in Kazakhstan, Southern Russia, Mongolia, and China.

References

  1. Bouchard, Patrice; Bousquet, Yves; Davies, Anthony E.; Alonso-Zarazaga, Miguel A.; Lawrence, John F.; Lyal, Chris H. C.; Newton, Alfred F.; Reid, Chris A. M. et al. (2011). "Family-group names in Coleoptera (Insecta)". ZooKeys (88): 1–972. doi:10.3897/zookeys.88.807. PMID 21594053. 
  2. "Bruchinae" (in en). https://www.ukbeetles.co.uk/bruchinae. 
  3. "Tribe Rhaebini" (in en). https://www.inaturalist.org/taxa/1411880-Rhaebini. 
  4. 4.0 4.1 Vencl, Fredric & Leschen, Richard. (2014). Vencl FV & Leschen RAB (2014) Chapter 2.7.6. Criocerinae Lattreille 1807. pp. 237- 242 In: Leschen RAB & Beutel RG (eds). Handbook of Zoology, Coleoptera Volume 3: Morphology and Systematics (Phytophaga). Walter de Gruyter, Berlin.
  5. 5.0 5.1 5.2 Kingsolver, John M.; Pfaffenberger, G. S. (1980). "Systematic relationship of the genus Rhaebus (Coleoptera, Bruchidae)". Proceedings of the Entomological Society of Washington 82: 293–311. https://www.biodiversitylibrary.org/part/56134.  archive.org
  6. 6.0 6.1 Bouchard, Patrice (2014-12-17) (in en). The Book of Beetles: A Life-Size Guide to Six Hundred of Nature's Gems. University of Chicago Press. ISBN 978-0-226-08289-9. https://books.google.com/books?id=UCauBgAAQBAJ&dq=Rhaebus+mannerheimi&pg=PT551. 
  7. Lopatin, Igor; Chikatunov, Vladimir (2000-07-31). "Rhaebus amnoni n. sp. – The first representative of the Central-Asian genus Rhaebus in Israel". Mitteilungen des Internationalen Entomologischen Vereins 25: 31–34. https://www.zobodat.at/pdf/Mitt-Int-Ent-Ver_25_1-2_2000_0031-0034.pdf. 
  8. Fischer von Waldheim, Gotthelf (1824) (in fr). Entomographia Imperii Russici. Auctoritate Societatis Cæsareæ Mosquensis Naturæ Scrutatorum: Cum XL tabulis æneis. 2. Semen. https://books.google.com/books?id=DPvw8tSWt3IC&q=Rhaebus+gebleri&pg=PA178. 
  9. Legalov, Andrei A. (2022-08-12). "Review of the genus Rhaebus Fischer von Waldheim, 1824 (Coleoptera: Chrysomelidae: Bruchinae)". Ecologica Montenegrina 55: 1–16. doi:10.37828/em.2022.55.1. ISSN 2336-9744. 

Wikidata ☰ Q11997728 entry