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Around half of all mayfly species whose reproductive biology has been described are parthenogenetic (able to asexually reproduce), including both partially and exclusively parthenogenetic populations and species. [18] Many species breed in moving water, where there is a tendency for the eggs and nymphs to get washed downstream.
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] The group is sometimes referred to as flat-headed mayflies or stream mayflies.
This list of the mayflies recorded in the British Isles follows Macadam, [1] with nomenclature and taxonomy according to Kluge. [2] There are 51 species of mayfly known to occur in the British Isles, distributed among ten families. Ameletidae. Ameletus inopinatus Eaton, 1887; Arthropleidae. Arthroplea congener Bengtsson, 1908; Baetidae
Mayflies. Wikimedia Commons has media related to Ephemeroptera. Articles relating to Mayflies (order Ephemeroptera), aquatic insects. This order is part of an ancient group of insects termed the Palaeoptera, which also contains dragonflies and damselflies. Over 3,000 species of mayfly are known worldwide, grouped into over 400 genera in 42 ...
Ephemera danica can reach an imago size of 15–20 mm (0.6–0.8 in) in males, while females are larger, reaching 16–25 mm (0.6–1.0 in). This mayfly, with its characteristic markings and three tails ( Cerci ), is the most commonly seen of British Ephemeridae. Imago wings are translucent with dark veining, while in subimago they are dull and ...
Baetidae is a family of mayflies with about 1000 described species in 110 genera distributed worldwide. [1] These are among the smallest of mayflies, adults rarely exceeding 10 mm in length excluding the two long slender tails and sometimes much smaller, and members of the family are often referred to as small mayflies or small minnow mayflies.
Pictet, 1843 [1] Ephemera guttulata, commonly known as the eastern green drake, shad fly and coffinfly, is a species of mayfly in the genus Ephemera. The eastern green drake is native to the continental United States and Canada. Its conservation status per the NatureServe conservation status ranking system is G5, meaning it is secure.
Handbooks for the Identification of British Insects is a series of books produced by the Royal Entomological Society (RES). The aim of the Handbooks is to provide illustrated identification keys to the insects of Britain, together with concise morphological, biological and distributional information. The series also includes several Check Lists ...