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Sminthuroidea
The order Symphypleona is one of the three main groups of springtails (Collembola), tiny hexapods related to insects. When the springtails were still believed to be an order of insects, the Symphypleona were ranked as a suborder. They can be best distinguished from the other springtail groups by their body shape. The Symphypleona are very round animals, almost spherical, and usually have long antennae. The Poduromorpha, by contrast, always have short legs and a plump body, but more oval in shape than the Symphypleona. The Entomobryomorpha are the slimmest springtails, some with long and some with short legs and antennae, but always with a very slender body. Systematics The Symphypleona order was previously suggested to also contain family Neelidae, as a very apomorphic relative in the Sminthuridae superfamily. Phylogenetic studies however suggest Neelidae to be the only family of Neelipleona order.Gao, Yan; Bu, Yun & Luan, Yun-Xia (2008): Phylogenetic Relationships of Basal He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neelipleona
Neelipleona is a name given to some hexapods of the subclass Collembola (springtails). While their taxonomic rank remains broadly settled as family Neelidae, Neelipleona has been described at order or suborder rank. Eyes are absent. Taxonomic rank Many authors consider the "Neelipleona" Symphypleona of the superfamily Sminthuroidea, family Neelidae.See references in Haaramo (2008) However, in other accounts, Neelipleona are either a distinct order from the three less controversial Springtail orders (Entomobryomorpha, Poduromorpha and Symphypleona) or a distinct suborder Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and ... of Symphypleona, or placed in the Entomobryomorpha. References Footnotes Collembola {{springtail-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allacma Fusca
''Allacma fusca'' is a species of springtail. This species is endemic to western areas of Continental Europe and the British Isles, where it lives in the surface layers of the soil in moist habitats such as among leaf litter. Description ''Allacma fusca'' is a large species of springtail with a dark brown globular abdomen; adults reach a length of around . There is often a "snowflake"-like marking on the abdomen, which is most noticeable in paler coloured individuals. The mouthparts are internal, and the head bears a pair of antennae, two groups of eyespots known as "composed eyes" and a pair of small post-antennal organs. The setae (bristles) on the third antennal segment are unequal in length, some being much longer than others, and the fourth antennal segment is divided into sixteen sub-segments. There are three thoracial segments, each bearing a leg, and five abdominal segments. The fourth abdominal segment bears an organ known as a "dens", and at the tip of this is a st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apomorph
In phylogenetics, an apomorphy (or derived trait) is a novel character or character state that has evolved from its ancestral form (or plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxa and is therefore hypothesized to have evolved in their most recent common ancestor. ) In cladistics, synapomorphy implies homology. Examples of apomorphy are the presence of erect gait, fur, the evolution of three middle ear bones, and mammary glands in mammals but not in other vertebrate animals such as amphibians or reptiles, which have retained their ancestral traits of a sprawling gait and lack of fur. Thus, these derived traits are also synapomorphies of mammals in general as they are not shared by other vertebrate animals. Etymology The word —coined by German entomologist Willi Hennig—is derived from the Ancient Greek words (''sún''), meaning "with, together"; (''apó''), meaning "away from"; and (''morphḗ''), meaning "shape, form". Clade anal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bourletiellidae
Bourletiellidae is a family of springtails in the order Symphypleona The order Symphypleona is one of the three main groups of springtails (Collembola), tiny hexapods related to insects. When the springtails were still believed to be an order of insects, the Symphypleona were ranked as a suborder. They can be .... References External links * Collembola Arthropod families {{Springtail-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arrhopalitidae
Arrhopalitidae is a family of springtails belonging to the order Symphypleona. Genera Arrhopalitidae includes the following genera: * ''Arrhopalites'' Börner, 1906 * ''Pygmarrhopalites ''Pygmarrhopalites'' is a genus of springtails belonging to the family Arrhopalitidae Arrhopalitidae is a family of springtails belonging to the order Symphypleona. Genera Arrhopalitidae includes the following genera: * ''Arrhopalites ''A ...'' Vargovitsh, 2009 * '' Troglopalites'' Vargovitsh, 2012 References External links * {{Taxonbar, from=Q340055 Collembola Arthropod families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katiannidae
Katiannidae is a family of Collembola. Genera of the family include ''Sminthurinus'' and ''Vesicephalus ''Vesicephalus'' is a genus of globular springtails in the family Katiannidae. There are at least four described species in ''Vesicephalus''. Species These four species belong to the genus ''Vesicephalus'': * ''Vesicephalus crossleyi'' Snider, R ...''. References {{Taxonbar, from=Q1942018 Collembola Arthropod families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mackenziellidae
Mackenziellidae is a family of springtails belonging to the order Symphypleona The order Symphypleona is one of the three main groups of springtails (Collembola), tiny hexapods related to insects. When the springtails were still believed to be an order of insects, the Symphypleona were ranked as a suborder. They can be .... Genera Mackenziellidae includes the following genera: * '' Mackenziella'' Hammer, 1953 References Collembola Arthropod families {{Springtail-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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