Acraea trimeni

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Trimen's acraea
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Nymphalidae
Genus: Acraea
Species:
A. trimeni
Binomial name
Acraea trimeni
Synonyms
  • Acraea zetes trimeni
  • Acraea barberi ab. or var. trimeniAurivillius, 1899
  • Acraea (Acraea) trimeni
  • Acraea zetes barberi f. erosLe Doux, 1923
  • Acraea zetes trimeni f. nigromaculaLe Doux, 1931

Acraea trimeni or Trimen's acraea is a butterfly of the family Nymphalidae. It is found in only in the arid savannah in the northern Northern Cape and the western part of the Free State.

Contents

The wingspan is 43–49 mm for males and 45–55 mm for females. Adults are usually on wing from October to March with a peak in late October. There might be two or continuous generations per year. [4]

Taxonomy

The status of this species is uncertain. Acraea trimeni was described as a form or aberration of Acraea barberi . Aurivillius (1898) is uncertain as to whether trimeni is an aberration or variety of barberi Trimen. Eltringham (1912) [5] retains the rank of aberration of barberi Trimen. Van Son (1963) [6] considers trimeni as a subspecies of zetes . In his phylogenetic analysis of 1992–1993, Henning considers the Aurivillius description as a good species, [7] [8] [9] but trimeni may be a synonym of barberi.

Eltringham's text reads "In the example named ab. trimeni by Aurivillius the apical yellow is more pronounced, and the forewing hind marginal black is almost absent. Aurivillius includes under this an example from Rehoboth (German W. Africa) which is now in the Staudinger collection. If this is really barberi then the hypoleuca of Trimen must also be a form of zetes which indeed is highly probable. Extremely different in appearance though it is. I have in fact only kept hypoleuca separate from zetes because it is so far a unique example and bears no locality. The example labelled barberi in the Staudinger collection differs very little from it. (See remarks under A. hypoleuca)".

Taxonomy

It is a member of the Acraea zetes species group - but see also Pierre & Bernaud, 2014 [10]

Etymology

The specific name honours Roland Trimen.

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References

  1. ↑ Woodhall, S.E. (2020). Acraea trimeni. The IUCN Red List of Threatened Species 2020. doi:10.2305/IUCN.UK.2020-1.RLTS.T161330352A161330356.en
  2. ↑ Aurivillius, [P.O.]C. 1899. Rhopalocera Aethiopica. Die Tagfalter des aethiopischen Faunengebietes: eine Systematische-Geographische Studie. Kungliga Svenska Vetenskapsakademiens Handlingar 31 (5): 1-561.
  3. ↑ "Acraea Fabricius, 1807" at Markku Savela's Lepidoptera and Some Other Life Forms
  4. ↑ Woodhall, Steve (2005). Field Guide to Butterflies of South Africa. Cape Town, South Africa: Struik. ISBN   978-1-86872-724-7.
  5. ↑ Eltringham, H. (1912). "A Monograph of the African species of the Genus Acraea, Fab., with a supplement on those of the Oriental Region". Transactions of the Royal Entomological Society of London. 60 (1): 1–369. doi:10.1111/j.1365-2311.1912.tb02511.x.
  6. ↑ Van Son, G. (1963). "The butterflies of southern Africa. Part III. Nymphalidae: Acraeinae". Transvaal Museum Memoirs. 14 (9): 1–130.
  7. ↑ Henning, G.A. (1992). "Phylogenetic notes on the African species of the subfamily Acraeinae. Part 1. (Lepidoptera: Nymphalidae)". Metamorphosis. 3 (3): 100–114.
  8. ↑ Henning, G.A. (1992). "Phylogenetic notes on the African species of the subfamily Acraeinae. Part 2 (Lepidoptera: Nymphalidae)". Metamorphosis. 4 (1): 5–18.
  9. ↑ Henning, G.A. (1992). "Phylogenetic notes on the African species of the subfamily Acraeinae. Part 3 (Lepidoptera: Nymphalidae)". Metamorphosis. 4 (2): 53–68.
  10. ↑ Pierre & Bernau, 2014 Classification et Liste Synonymique des Taxons du Genre Acraea pdf


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