Heliconiinae

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"Longwings" redirects here. For other uses, see Longwing (disambiguation).
Longwings
Heliconius mimicry.png
Mimicry in Heliconius
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
(unranked): Rhopalocera
Superfamily: Papilionoidea
Family: Nymphalidae
Subfamily: Heliconiinae
Swainson, 1822
Tribes

Acraeini
Heliconiini
Argynnini
Vagrantini
and see text

Synonyms

Heliconiidae Swainson, 1822

The Heliconiinae, commonly called heliconians or longwings, are a subfamily of the brush-footed butterflies (family Nymphalidae). They can be divided into 45–50 genera and were sometimes treated as a separate family Heliconiidae within the Papilionoidea. The coloration is predominantly reddish and black, and though of varying wing shape, the forewings are always elongated tipwards, hence the common name.

Most longwings are found in the Tropics, particularly in South America; only the Argynnini are quite diverse in the Holarctic. Especially tropical species feed on poisonous plants, characteristically Passifloraceae vines, as larvae, becoming poisonous themselves. The adult butterflies announce their acquired toxicity with strong aposematic colors, warning off would-be predators. There are several famous cases of Batesian and Müllerian mimicry both within this group and with other butterflies. Other commonly seen foodplants are Fabaceae (which also contain several toxic species), and particularly among northernly species Violaceae.[1]

Systematics[edit]

Four or five tribes are generally recognized in the Heliconiinae. There have been numerous attempts to sort out the phylogenetic sequence and delimitation of these, but while the former has made good progress, the latter has hitherto only achieved limited results.[1]

Several phylogenies (and corresponding taxonomic adjustments) have been proposed, but though looking reasonable each and every one of them is only weakly supported. Even cladistic analyses of the same type of data often yield contradicting results depending on the exact method of evaluation. Ultimately, the reason is that just a fraction of the evolutionary diversity of Heliconiinae has been sampled.[1]

What appears fairly certain is that the Argynnini and Vagrantini is closer relatives than any other two tribes of Heliconiinae. The Acraeini and Heliconiini are probably more basal lineages, but the exact placement of each respective to the other tribes cannot be considered well-resolved at all.[1]

Male of the Silver-washed Fritillary (Argynnis paphia), type species of Argynnis and the Argynnini.

Some tribes are distributed among several continents, resulting in a confusing phylogeography pattern. But as it seems, the apparent contradictions between systematics and biogeography are due the premature classifications based on insufficient taxon sampling. With studies becoming more and more comprehensive, the apparent anomalies seem to sort themselves out at least for the most part. For example, the confusing distribution pattern of Acraea in the wide circumscription is apparently simply due to the bulk of this morphologically conservative group warranting recognition as genus Telchinia – it stands to note that this group has on occasion been allied with Actinote rather than Acraea, and this indeed appears to be correct.[1]

In addition, the genus Pardopsis, often placed in the Acraeini, does almost certainly not belong there; it might better be placed in the Argynnini. The relationships of the genus Cethosia (sometimes treated as a tribe of its own) are even more mysterious, and it is likely that some other genera will eventually also be moved to a different tribe as they are studied in detail. Some, like the Argynnini Argynnis, Boloria and Issoria, might be overlumped and non-monophyletic and thus some genera presently usually considered junior synonyms of them might eventually be validated like Telchinia.[1]

Genera[edit]

The well-known Tawny Coaster of the Acraeini presently goes by the scientific name Acraea terpsicore

Genera are presented in the presumed phylogenetic sequence. Notable species are also given if no genus article exists.[2]

Acraeini (Boisduval, 1833)

Heliconiini (Swainson, 1822)

The Leopard Lacewing (Cethosia cyane) belongs to the puzzling genus Cethosia

Vagrantini (Pinratana & Eliot, 1996)

Argynnini (about 7 genera)

Footnotes[edit]

  1. ^ a b c d e f Silva-Brandão et al. (2008)
  2. ^ Based on Wahlberg [2008], Silva-Brandão et al. (2008). See also Savela (2008) for further sources.
  3. ^ Neruda, Tree of Life

References[edit]

  • Brown, Keith S. Jr. (1981): The biology of Heliconius and related genera. Annu. Rev. Entomol. 26: 427-456. doi:10.1146/annurev.en.26.010181.002235 PDF fulltext
  • Miller, L.D. & Miller, J.Y. (2004): The Butterfly Handbook: 130. Barron's Educational Series, Inc., Hauppauge, New York. ISBN 0-7641-5714-0
  • Savela, Markku (2008): Markku Savela's Lepidoptera and some other life forms – Heliconiinae. Version of 2008-FEB-09. Retrieved 2008-AUG-14.
  • Silva-Brandão, Karina Lucas; Wahlberg, Niklas;, Francini, Ronaldo Bastos; Azeredo-Espin, Ana Maria L.; Brown, Keith S. Jr.; Paluch, Márlon; Lees, David C. & Freitas, André V.L. (2008): Phylogenetic relationships of butterflies of the tribe Acraeini (Lepidoptera, Nymphalidae, Heliconiinae) and the evolution of host plant use. Mol. Phylogenet. Evol. 46(2): 515-531. doi:10.1016/j.ympev.2007.11.024 (HTML abstract)
  • Wahlberg, Niklas [2008]: Nymphalidae.net – The higher classification of Nymphalidae. Retrieved 2008-AUG-14.

Further reading[edit]

  • Glassberg, Jeffrey Butterflies through Binoculars, The West (2001)
  • Guppy, Crispin S. and Shepard, Jon H. Butterflies of British Columbia (2001)
  • James, David G. and Nunnallee, David Life Histories of Cascadia Butterflies (2011)
  • Pelham, Jonathan Catalogue of the Butterflies of the United States and Canada (2008)
  • Pyle, Robert Michael The Butterflies of Cascadia (2002)

External links[edit]