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Hexagenia
''Hexagenia'' is a genus of mayfly in the family Ephemeridae, the common burrower mayflies. Species These eight species belong to the genus ''Hexagenia'': * '' Hexagenia albivitta'' (Walker, 1853) * '' Hexagenia atrocaudata'' McDunnough, 1924 * '' Hexagenia bilineata'' (Say, 1824) * '' Hexagenia callineura'' Banks, 1914 * ''Hexagenia limbata'' (Serville, 1829) * '' Hexagenia mexicana'' Eaton, 1885 * '' Hexagenia orlando'' Traver, 1931 * ''Hexagenia rigida'' McDunnough, 1924 i c g b Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net General information ''Hexagenia'' are commonly referred to as burrower mayflies as they create u-shaped tunnels in the aquatic substrate where they reside. This shape allows them to draw in water from the surrounding areas by undulating their body near the mouth of the tunnel. ''Hexagenia'' feed upon microscopic organisms suspended in the water column and thus draw in all the food and oxygen they require. Therefore, these burrow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexagenia Callineura
''Hexagenia'' is a genus of mayfly in the family Ephemeridae, the common burrower mayflies. Species These eight species belong to the genus ''Hexagenia'': * ''Hexagenia albivitta'' (Walker, 1853) * '' Hexagenia atrocaudata'' McDunnough, 1924 * '' Hexagenia bilineata'' (Say, 1824) * '' Hexagenia callineura'' Banks, 1914 * ''Hexagenia limbata'' (Serville, 1829) * '' Hexagenia mexicana'' Eaton, 1885 * '' Hexagenia orlando'' Traver, 1931 * ''Hexagenia rigida'' McDunnough, 1924 i c g b Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net General information ''Hexagenia'' are commonly referred to as burrower mayflies as they create u-shaped tunnels in the aquatic substrate where they reside. This shape allows them to draw in water from the surrounding areas by undulating their body near the mouth of the tunnel. ''Hexagenia'' feed upon microscopic organisms suspended in the water column and thus draw in all the food and oxygen they require. Therefore, these burrowi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexagenia Bilineata
''Hexagenia bilineata'' is a species of mayfly in the family Ephemeridae. It is native to North America where it is found in the Upper Mississippi Valley. Sometimes adults of this mayfly are so abundant as to cause a nuisance because of their enormous numbers. The larvae are aquatic and burrow in mud and the adult insects have brief lives. Description When the adults are ready to emerge, the mayfly nymphs (larvae) swim to the surface of the water during the night. Their skin splits and winged subimagos struggle free, usually in less than a minute, and fly to nearby trees to rest. They are a dull gray color and have short, coarse legs, bristly cerci and cloudy, grayish wings. Some eight to eighteen hours later, these subimagos moult into mature adults (imagos). These are altogether more delicate in appearance than the subimagos; the wings are transparent, the legs are longer and more slender, the cerci lack bristles, the eyes are larger and the body is patterned in brown and cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexagenia Atrocaudata
''Hexagenia atrocaudata'' is a species of common burrower mayfly in the family Ephemeridae. It is found in North America. References Mayflies Insects described in 1924 Articles created by Qbugbot Insects of North America {{Mayfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexagenia Orlando
''Hexagenia orlando'' is a species of common burrower mayfly in the family Ephemeridae. It is found in North America. References Mayflies Articles created by Qbugbot Insects described in 1931 Insects of North America {{mayfly-stub ... [...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] |
Pentagenia
''Pentagenia'', similar to Hexagenia, is a genus of insect in the family Ephemeridae, commonly referred to as burrowing mayflies. General information Unlike Hexagenia, which inhabit mostly lightly compacted silt substrates, most species of Pentagenia inhabit compacted clay substrates. They also prefer faster flowing streams than Hexagenia. This difference in habitat creates several morphological differences between the two genera. The mandibular tusks are used to excavate an open burrow in the substrate where the mayfly resides, therefore the size and strength of the head differs between the two genera in correlation to the different substrates in which they burrow. However, the best delineating feature between the two is that Pentagenia have a pointed frontal process with a minor cleft at the point.Keltner, J. and W. P. McCafferty. (1986). Functional morphology of burrowing in the mayflies Hexagenia limbata and Pentagenia vittigera. ''Zoological Journal of the Linnean Society'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ephemeridae
Ephemeridae is a family of mayfly, mayflies with about 150 described species found throughout the world except Australia and Oceania. Description Ephemerids are generally quite large mayflies (up to 35 mm) with either two or three very long tails. Many species have distinctively patterned wings.Chinery, Michael (1986) ''Collins Guide to the Insects of Britain and Western Europe'' (Reprinted 1991) They breed in a wide range of waters, usually requiring a layer of silt as the nymph (zoology), nymphs have strong legs which are adapted for burrowing (the group is sometimes known as burrowing mayflies). The nymphs are largely carnivore, carnivorous and collect their food either through predation or scavenger, scavenging. Genera The Global Biodiversity Information FacilityGlobal Biodiversity Information Facility: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
