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Larval morphology of the Madagascan endemic diving beetle genus Hovahydrus Biström, 1982 (Coleoptera: Dytiscidae) and phylogenetic comparison with other known Hyphydrini
Swedish Museum of Natural History, Department of Zoology. (Bergsten Systematic Entomology Lab)ORCID iD: 0000-0002-6153-4431
2022 (English)In: Zootaxa, ISSN 1175-5326, E-ISSN 1175-5334, Vol. 5219, no 3, p. 227-246Article in journal (Refereed) Published
Abstract [en]

We describe for the first time the instar III larva of the diving beetle genus Hovahydrus Biström, 1982, based on H. praetextus (Guignot, 1951) and a new species yet to be described (identified here as Hovahydrus sp. near H. minutissimus (Régimbart, 1903)). We include detailed morphometric and chaetotaxic analyses of the cephalic capsule, head appendages, legs, last abdominal segment and urogomphi in order to discover useful characters for distinguishing Hovahydrus larvae from those of other known Hyphydrini (Coleoptera: Dytiscidae, Hydroporinae). A provisional parsimony analysis based on larval characteristics of 11 Hyphydrini species in eight genera was conducted using the program TNT. Larval morphology supports a close relationship between Hovahydrus, Hyphydrus Illiger, 1802, and the endemic South Africa genera Andex Sharp, 1882, Coelhydrus Sharp, 1882, Darwinhydrus Sharp, 1882 and Primospes Sharp, 1882. 

Place, publisher, year, edition, pages
2022. Vol. 5219, no 3, p. 227-246
National Category
Biological Systematics
Research subject
Diversity of life
Identifiers
URN: urn:nbn:se:nrm:diva-4982DOI: 10.11646/zootaxa.5219.3.2OAI: oai:DiVA.org:nrm-4982DiVA, id: diva2:1717683
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Swedish Research Council, 2013-5170Available from: 2022-12-09 Created: 2022-12-09 Last updated: 2022-12-31Bibliographically approved

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ALARIE, YVESMICHAT, MARIANO C.RANARILALATIANA, TOLOTRABergsten, Johannes
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