Pedinorrhina is a genus of fruit and flower chafers belonging to the family Scarabaeidae, subfamily Cetoniinae, found in Africa.[1]

Pedinorrhina
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Scarabaeidae
Subfamily: Cetoniinae
Tribe: Goliathini
Subtribe: Rhomborhinina
Genus: Pedinorrhina
Kraatz, 1880
Type species
Heterorrhina (Plæsiorrhina) Swanzyana
Schaum, 1848

Taxonomy

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Pedinorrhina is one of a small set of closely-related African genera whose constituency is considered controversial, due to historical and ongoing discrepancies in treatment by various authorities.[1]

Up until 1984, taxonomists considered there to be six distinct genera in this group (Bothrorrhina Burmeister, Chondrorrhina Kraatz, Dyspilophora Kraatz, Pedinorrhina Kraatz, Plaesiorrhina Burmeister, and Taeniesthes Kraatz), but in 1984, Jan Krikken recognized that Burmeister's genus name Plaesiorrhina was a junior homonym and needed to be replaced.[2] The name Plaesiorrhina had been published by John O. Westwood several months prior to Burmeister's publication,[3] a fact that previous researchers had been unaware of, and Krikken renamed Burmeister's genus Plaesiorrhinella.[2] At the same time, Krikken also recognized that the other Burmeister genus, Bothrorrhina, was a junior objective synonym of Westwood's resurrected genus Plaesiorrhina, necessitating a change in combination for all of the included species.[2]

In 1994, Holm suggested a novel set of relationships, proposing that Krikken's genus Plaesiorrhinella (Burmeister's genus Plaesiorrhina) was a synonym of Pedinorrhina, while Dyspilophora and Taeniesthes were both synonyms of Chondrorrhina, and placing Chondrorrhina as a subgenus of Pedinorrhina.[4] These changes reduced six genera down to only two: Pedinorrhina Kraatz, and Plaesiorrhina Westwood, with the latter having the same name as a previously recognized genus by a different author. Holm also treated six former species as new junior synonyms, so under his revised definition of Pedinorrhina, there were 16 species rather than 22.[4]

Subsequent authors have largely disagreed with Holm's classification, treating Chondrorrhina as a valid genus separate from Pedinorrhina, and placing Krikken's genus Plaesiorrhinella as a subgenus of Chondrorrhina (e.g.[5][6]), thereby recognizing a total of three genera (Chondrorrhina Kraatz, Pedinorrhina Kraatz, and Plaesiorrhina Westwood). It is this classification, with these three genera, that has been adopted by the majority of recent researchers (e.g.[7][8][9][1]), retaining Chondrorrhina as a genus distinct from Pedinorrhina. In this restricted sense, there are only seven species recognized within Pedinorrhina, and a number of the species that Holm had synonymized have been treated as valid, many no longer in Pedinorrhina.[8]

Species

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References

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  1. ^ a b c Serrano, A. R. M., Capela, R. A., Nunes, T. & Santos, C. Van-Dú-Nem Neto (2020) The rose chafers (Coleoptera: Scarabaeidae: Cetoniinae) of Angola: a descriptive checklist with new records and synonymic notes, Zootaxa 4776: 1-130
  2. ^ a b c Krikken, J. (1984) A new key to the suprageneric taxa in the beetle family Cetoniidae, with annotated lists of the known genera. Zoologische verhandelingen 210: 1–75.
  3. ^ Bousquet, Y. (2016) Litteratura Coleopterologica (1758–1900): a guide to selected books related to the taxonomy of Coleoptera with publication dates and notes. ZooKeys 583: 1-776. https://doi.org/10.3897/zookeys.583.7084
  4. ^ a b Holm, E. (1994) On the genera of African Cetoniinae 1: The genus Pedinorrhina Kraatz and related taxa (Coleoptera: Scarabaeidae). The Coleopterists Bulletin 48(1): 19-29
  5. ^ Antoine, Ph. (2008) Remarques taxonomique sur le genre Pedinorrhina Kraatz, 1880 (Coleoptera, Cetoniidae). Coléoptères 14(3): 27–42.
  6. ^ Krajcik, M. (2008) Cetoniidae of the World. Catalogue - Part I. (Coleoptera: Scarabaeoidea). Animma. x, Supplement: 1-96 + I-XXXVI.
  7. ^ Camiade, D. (2015) Une nouvelle espece de Chondrorrhina (Plaesiorrhinella) Krikken, 1984 de Cote d'Ivoire (Coleoptera, Cetoniidae). Entomologia Africana 20(1): 17-21.
  8. ^ a b Beinhundner, G. (2017) The Cetoniinae of Africa (Coleoptera: Scarabaeidae). Privately published, Euerbach, 1199 pp.
  9. ^ Garnier, T., Flutsch, G. & Rojkoff, S. (2018). Description de deux nouvelles espèces appartenant au genre Chondrorrhina Kraatz sous-genre Plaesiorrhinella Krikken, 1984 (Coleoptera, Cetoniidae, Cetoniinae, Goliathini). Cetoniimania NS, 13: 17-30.