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Heptageniidae
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. 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. The oldest described member of the family is '' Amerogenia'' from the Late Cretaceous (Turonian) aged New Jersey amber New Jersey Amber, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayfly
Mayflies (also known as shadflies or fishflies in Canada and the upper Midwestern United States, as Canadian soldiers in the American Great Lakes region, and as up-winged flies in the United Kingdom) are aquatic insects belonging to the order Ephemeroptera. 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 families. Mayflies have ancestral traits that were probably present in the first flying insects, such as long tails and wings that do not fold flat over the abdomen. Their immature stages are aquatic fresh water forms (called "naiads" or "nymphs"), whose presence indicates a clean, unpolluted and highly oxygenated aquatic environment. They are unique among insect orders in having a fully winged terrestrial preadult stage, the subimago, which moults into a sexually mature adult, the imago. Mayflies "hatch" (emerge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nixe (mayfly)
''Nixe'' is a genus of mayflies in the family Heptageniidae 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 Sou .... Species *'' Nixe dorothae'' *'' Nixe flowersi'' *'' Nixe horrida'' *'' Nixe inconspicua'' *'' Nixe kennedyi'' *'' Nixe lucidipennis'' *'' Nixe perfida'' *'' Nixe rusticalis'' *'' Nixe spinosa'' References * * Mayfly genera {{mayfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epeorus
''Epeorus'' is a genus of mayflies in the family Heptageniidae. Species * '' Epeorus aculeatus'' Braasch, 1990 * '' Epeorus aesculus'' Imanishi, 1934 * '' Epeorus albertae'' (McDunnough, 1924) * '' Epeorus alexandri'' (Kluge & Tiunova, 1989) * '' Epeorus alpestris'' (Braasch, 1979) * '' Epeorus alpicola'' (Eaton, 1871) * '' Epeorus assimilis'' (Eaton, 1865) * '' Epeorus bifurcatus'' Braasch & Soldán, 1979 * '' Epeorus bispinosus'' Braasch, 1980 * '' Epeorus boonsoongi'' Braasch, 2011 * '' Epeorus borneonia'' (Ulmer, 1939) * '' Epeorus carninatus'' Braasch & Soldán, 1984 * '' Epeorus caucasicus'' (Tshernova, 1938) * '' Epeorus cumulus'' Imanishi, 1939 * '' Epeorus curvatulus'' Matsumura, 1931 * '' Epeorus deceptivus'' (McDunnough, 1924) * '' Epeorus dispar'' (Traver, 1933) * '' Epeorus dulciana'' (McDunnough, 1935) * '' Epeorus ermolenkoi'' Tschernova, 1981 * '' Epeorus extraordinarius'' Chen, Wang & Zhou, 2010 * '' Epeorus fragilis'' (Morgan, 1911) * '' Epeorus frisoni'' (Burks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kageronia
''Kageronia'' is a genus of mayflies in the family Heptageniidae 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 Sou .... References * Mayflies Mayfly genera Insects of Europe {{mayfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stenonema
''Stenonema'' is a genus of mayflies in the family Heptageniidae 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 Sou .... References * Mayfly genera Insects of Europe Mayflies {{mayfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stenacron
''Stenacron'' is a genus in the family Heptageniidae, the flat-headed mayflies. Almost all species are distributed across eastern North America. Life History Although larvae can be found in many different conditions, they have some basic and preferred requirements. They tend to cling to the underside of rocks that are a minimum of 8 X 8 inches and 2 inches thick. Larger rocks contain greater populations of Stenacron species. They are seldom found in the faster riffle waters but instead at the slower moving banks, typically with a water depth of no less than 3 inches and up to 16 inches deep. Stenacron can live in waters that are not moving and low in DO, however, they prefer a stable and moderate DO in which greater populations will occur. Lewis showed that the form (Stenacron interpunctatum / heterotarsale) historically carried an EBI (Empirical Biotic Index) rating of a level (7) showing a high tolerance level to pollution's both Toxic and Organic. Taxonomy History Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhithrogena
''Rhithrogena'' is a genus of flatheaded mayflies in the family Heptageniidae 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 Sou .... There are at least 150 described species in ''Rhithrogena''. See also * List of Rhithrogena species References * Further reading * * * * * * External links * Mayfly genera {{mayfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raptoheptagenia
''Raptoheptagenia'' is a genus of mayflies in the family Heptageniidae 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 Sou .... References * Mayflies Mayfly genera {{mayfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthomola
''Acanthomola'' is a genus of mayflies in the family Heptageniidae 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 Sou .... References * Mayflies Mayfly genera {{mayfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macdunnoa
''Macdunnoa'' is a genus of mayflies in the family Heptageniidae 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 Sou .... References * Mayflies Mayfly genera Insects of Europe {{mayfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucrocuta
''Leucrocuta'' is a genus of mayflies in the family Heptageniidae. Species These 10 species belong to the genus ''Leucrocuta'': * '' Leucrocuta aphrodite'' (McDunnough, 1926) * '' Leucrocuta hebe'' (McDunnough, 1924) * '' Leucrocuta jewetti'' (Allen, 1966) * '' Leucrocuta juno'' (McDunnough, 1924) * '' Leucrocuta maculipennis'' (Walsh, 1863) * '' Leucrocuta minerva'' (McDunnough, 1924) * '' Leucrocuta petersi'' (Allen, 1966) * '' Leucrocuta thetis'' (Traver, 1935) * '' Leucrocuta umbratica'' (McDunnough, 1931) * '' Leucrocuta walshi'' (McDunnough, 1926) i c g b Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net References * Mayfly genera Mayflies {{mayfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhithrogena Germanica
''Rhithrogena germanica'' is a European species of mayfly, and is "probably the most famous of all British mayflies", because of its use in fly fishing. It is known in the British Isles as the March brown mayfly, a name which is used in the United States for a different species, '' Rhithrogena morrisoni''. It emerges as a subimago at the end of winter, and can be distinguished from similar species by a dark spot on the femur of each leg. Description Adults and subimagos of ''Rhithrogena'' species have two long tails, and readily visible hind wings. ''R. germanica'' can only be distinguished from related species such as '' R. semicolorata'' (the only other '' Rhithrogena'' species in the United Kingdom) by the presence of a dark spot on the femora of the legs. A similar species, ''Ecdyonurus venosus'' (the ''late March brown'' or ''false March brown'') is more widespread in Great Britain, but emerges later in the year than ''R. germanica''. Distribution ''Rhithrogena germanica'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
