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Schistonota
Schistonota is a suborder of mayflies. One of the differences between this suborder and its sister group, Pannota, concerns the degree of fusion of the wing pads in the final-stage nymph; in Schistonota, the degree of fusion along the mesothorax The mesothorax is the middle of the three segments of the thorax of hexapods, and bears the second pair of legs. Its principal sclerites (exoskeletal plates) are the mesonotum (dorsal), the mesosternum (ventral), and the mesopleuron (lateral) on ... is more than half the fore-wing length while in Pannota the degree of fusion is less than half that length. Other differences between the two groups include the morphology of the gills and also behavioural differences. Schistonota nymphs are mostly active swimmers, burrowers or sprawlers, while Pannota nymphs are more passive, slow-moving crawlers. The following superfamilies are recognised: * Baetoidea * Ephemeroidea * Heptagenioidea * Leptophlebioidea References {{Taxonbar, from=Q ... [...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] |
Pannota
Pannota is a suborder of mayflies. One of the differences between this suborder and its sister group Schistonota concerns the degree of fusion of the wing pads in the final-stage nymph; in Schistonota, the degree of fusion along the mesothorax is more than half the fore-wing length while in Pannota the degree of fusion is less than half that length. Other differences between the two groups include the morphology of the gills and also behavioural differences. Schistonota nymphs are mostly active swimmers, burrowers and sprawlers, while Pannota nymphs are more passive, slow-moving crawlers. The following superfamilies and families are recognised: *Superfamily Caenoidea **Baetiscidae **Caenidae ** Neoephemeridae **Prosopistomatidae *Superfamily Ephemerelloidea **Ephemerellidae **Leptohyphidae **Tricorythidae Tricorythidae is a family of mayflies in the order Ephemeroptera. There are about six genera and at least 40 described species in Tricorythidae. Genera These six genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayflies
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 Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ... Ephemeroptera. This order is part of an ancient group of insects termed the Palaeoptera, which also contains dragonflies and damselfly, damselflies. Over 3,000 species of mayfly are known worldwide, grouped into over 400 genus, genera in 42 family (biology), families. Mayflies have ancestral traits that were probably present in the first flying insects, such as long tails and Insect wing, wings that do not fold flat over the insect morphology#Abdomen, abdomen. Their immature stages are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ephemera Danica
''Ephemera danica'', the green drake or green drake mayfly, is a species of mayfly in the genus ''Ephemera''. Description ''Ephemera danica'' can reach an imago size of in males, while females are larger, reaching . 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 yellowish with brown veins. Moreover, forelegs and the tails of the spinners are very much longer than in duns. Mouthparts are non-functional, as adults do not feed. These insects are part of the aerial plankton and usually they are food for swallows, trouts and many amphibians and spiders. Life cycle The life cycle usually takes one or two years, but sometimes the developing nymphal forms may last for up to three years. Nymphs can reach about of length. They dig tunnels into the gravel in the beds of rivers and feed by filtering organic detritus. They emerge in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baetoidea
Baetoidea is a superfamily of mayflies, which probably includes the most primitive living species. The following families are recognised: * Ameletopsidae *Ametropodidae Ametropodidae is a family of mayflies in the order Ephemeroptera. There are at least three genera and three described species in Ametropodidae. Genera These three genera belong to the family Ametropodidae: * '' Ametropus'' Albarda, 1878 * '' Br ... * Baetidae * Oniscigastridae * Siphlonuridae References {{Taxonbar, from=Q11959980 Mayflies Insect superfamilies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ephemeroidea
''Ephemeroidea'' is a superfamily of mayflies. Members of this superfamily are found in most parts of the world with the exception of the Arctic, the Antarctic and Australia. The following families are recognised: *Behningiidae * Ephemeridae *Euthyplociidae * Palingeniidae *Polymitarcyidae *Potamanthidae Potamanthidae is a family of mayflies 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) a ... References {{Taxonbar, from=Q3055705 Mayflies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heptagenioidea
''Heptagenioidea'' is a superfamily of mayflies. Members of this superfamily are found in most parts of the world apart from the Arctic and Antarctic, with Heptageniidae being the most widely distributed family. Heptagenioidea probably originated in the Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The J ... period when mayflies started breeding in flowing water, the mouthparts and forelegs becoming adapted to passive feeding. The ancestors of the new group had bred in still water, and the opportunities provided by the change in environment encouraged rapid radiation. References {{Taxonbar, from=Q3133322 Mayflies Insect superfamilies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptophlebioidea
Leptophlebiidae is a family belonging to the Ephemeropterans that are commonly known as the prong-gilled mayflies or leptophlebiids. It is the only family in the superfamily Leptophlebioidea. There are around 131 genera and 640 described species. Leptophlebiids are easily recognized by the forked gills present on the larvae's abdomen, thus their common name. Larvae Leptophlebiid larvae live in freshwater streams and lakes eating detritus and/or algae. North American species generally cling to rocks, few physiologically equipped for skilled swimming. Like all Ephemeropteran larvae, fragile gills line the lateral margins of their abdomen. Some genera grow mandibular tusks like their burrowing relatives, the Ephemeridae, Polymitarcyidae, and Potamanthidae. Selected genera * ''Acanthophlebia'' Towns, 1983 * ''Atalophlebia'' * ''Choroterpes'' * ''Farrodes'' * ''Habrophlebia'' * ''Habrophlebiodes'' * ''Leptophlebia'' * ''Miroculis'' * ''Neochoroterpes'' * ''Paraleptophleb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomic Rank
In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in an ancestral or hereditary hierarchy. A common system consists of species, genus, family, order, class, phylum, kingdom, domain. While older approaches to taxonomic classification were phenomenological, forming groups on the basis of similarities in appearance, organic structure and behaviour, methods based on genetic analysis have opened the road to cladistics. A given rank subsumes under it less general categories, that is, more specific descriptions of life forms. Above it, each rank is classified within more general categories of organisms and groups of organisms related to each other through inheritance of traits or features from common ancestors. The rank of any ''species'' and the description of its ''genus'' is ''basic''; which means that to identify a particular organism, it is usually not necessary to specify ranks other than these first two. Consider a particu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesothorax
The mesothorax is the middle of the three segments of the thorax of hexapods, and bears the second pair of legs. Its principal sclerites (exoskeletal plates) are the mesonotum (dorsal), the mesosternum (ventral), and the mesopleuron (lateral) on each side. The mesothorax is the segment that bears the forewings in all winged insects, though sometimes these may be reduced or modified, as in beetles (Coleoptera) or Dermaptera, in which they are sclerotized to form the elytra ("wing covers"), and the Strepsiptera, in which they are reduced to form halteres that attach to the mesonotum. All adult insects possess legs on the mesothorax. In some groups of insects, the mesonotum is hypertrophied, such as in Diptera, Hymenoptera, and Lepidoptera), in which the anterior portion of the mesonotum (called the Scute#Insects_and_other_arthropods, mesoscutum, or simply "scutum") forms most of the dorsal surface of the thorax. In these orders, there is also typically a small sclerite attached ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ephemera Simulans Male
Ephemera are transitory creations which are not meant to be retained or preserved. Its etymological origins extends to Ancient Greece, with the common definition of the word being: "the minor transient documents of everyday life". Ambiguous in nature, various interpretations of ephemera and related items have been contended, including menus, newspapers, postcards, posters, sheet music, stickers and valentines. Since the printing revolution, ephemera has been a long-standing element of everyday life. Some ephemera are ornate in their design, acquiring prestige, whereas others are minimal and notably utilitarian. Virtually all conceptions of ephemera make note of the matter's disposability. Ephemera has long been collected by the likes of families, hobbyists and curators, with certain instances of ephemera intended to be collected. Literature by collectors and societies has contributed to a greater willingness to preserve ephemera, which is now ubiquitous in archives and library ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
