Heptageniidae Explained
The Heptageniidae (synonym: Ecdyonuridae) are a family of mayflies with over 500 described species mainly distributed in the Holarctic, Oriental, and Afrotropical regions, and also present in the Central American Tropics and extreme northern South America.[1]
Description
The group is sometimes referred to as flat-headed mayflies or stream mayflies. These are generally rather small mayflies with three long tails. The wings are usually clear with prominent venation although species with variegated wings are known. As in most mayflies, the males have large compound eyes, but not divided into upper and lower parts.
Heptageniids breed mainly in fast-flowing streams, but some species use still waters. The nymphs have a flattened shape and are usually dark in colour. They use a wide range of food sources with herbivorous, scavenging, and predatory species known.
Genera
The Global Biodiversity Information Facility lists:[2]
- Afghanurus
- Afronurus
- Amerogenia
- Anapos
- Anepeorus
- Arthroplea
- Asionurus
- Atopopus
- Belovius
- Bleptus
- Burshtynogena
- Cinygma
- Cinygmula
- Compsoneuria
- Dacnogenia
- Darthus
- Ecdyogymnurus
- Ecdyonuroides
- Ecdyonurus
- Electrogena
- Epeorella
- Epeorus
- Heptagenia
- Ironodes
- Kageronia
- Leucrocuta
- Maccaffertium
- Macdunnoa
- Miocoenogenia
- Nestormeus
- Nixe (mayfly)
- Notacanthurus
- Notacanthurus
- Paegniodes
- Paracinygmula
- Parafronurus
- Pseudiron
- Pseudokageronia
- Raptoheptagenia
- Regulaneuria
- Rhithrogena
- Rhithrogeniella
- Spinadis
- Stenacron
- Stenonema
- Succinogenia
- Thalerosphyrus
- Thamnodontus
- Trichogenia
The oldest described member of the family is Amerogenia from the Late Cretaceous (Turonian) aged New Jersey amber.
References
- Book: Chinery, Michael. Collins Guide to the Insects of Britain and Western Europe. 1986. Collins. London. 0-00-219170-9.
- Book: McGavin, George C.. Insects and Spiders. 2005. Dorling Kindersley. London. 1-4053-0596-7.
- Webb. J.M.. McCafferty W.P.. Heptageniidae of the World: Part II. Canadian Journal of Arthropod Identification. 30 October 2008. 1–55. 10.3752/cjai.2008.07. 1 July 2011. free.
See also
External links
Notes and References
- Wang. T.-Q. MCCafferty W.P.. Heptageniidae (Ephemeroptera) of the World. Part I: Phylogenetic Higher Classification. Transactions of the American Entomological Society. March 2004. 130. 1. 11–45. 25078834.
- https://www.gbif.org/species/7873 Global Biodiversity Information Facility: Heptageniidae
