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Mesocnemis
''Mesocnemis'' is a genus of African damselflies in the white-legged damselfly family ( Platycnemididae). They are commonly known as Riverjacks. The genus contains the following species: * '' Mesocnemis dupuyi'' Legrand, 1982 - Gambia Riverjack * '' Mesocnemis robusta'' ( Selys, 1886) * '' Mesocnemis saralisa'' Dijkstra, 2008 * ''Mesocnemis singularis ''Mesocnemis singularis'' is a species of damselfly in the family Platycnemididae. Common names include riverjack, savanna riverjack, common riverjack, savanna brook-damsel, and savanna stream-damsel. Distribution This species is widespread in ...'' Karsch, 1891 - Common Riverjack, Savanna Brook-damsel, Savanna Stream-damsel * '' Mesocnemis tisi'' Lempert, 1992 - Liberian Riverjack References Platycnemididae Zygoptera genera Taxa named by Ferdinand Karsch Taxonomy articles created by Polbot {{Platycnemididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesocnemis Singularis
''Mesocnemis singularis'' is a species of damselfly in the family Platycnemididae. Common names include riverjack, savanna riverjack, common riverjack, savanna brook-damsel, and savanna stream-damsel. Distribution This species is widespread in sub-Saharan Africa; it has been found in Angola, Botswana, Cameroon, the Democratic Republic of the Congo, Ivory Coast, Gabon, Ghana, Guinea, Kenya, Liberia, Malawi, Mozambique, Namibia, Nigeria, Sierra Leone, South Africa, Sudan, Tanzania, Togo, Uganda, Zambia, and Zimbabwe. Habitat Its natural habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...s include open, rocky rivers and streams in savanna, bush or forest; also rocky shores of lakes. Identification Mesocnemis singularis 2016 04 10 1488.jpg, Male Mesocnemis singularis 2016 0 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesocnemis Dupuyi
''Mesocnemis dupuyi'' is a species of white-legged damselfly in the family Platycnemididae. The IUCN conservation status of ''Mesocnemis dupuyi'' is "NT", near threatened. The species may be considered threatened in the near future. The IUCN status was reviewed in 2010. References Further reading * Platycnemididae Articles created by Qbugbot Insects described in 1982 {{Platycnemididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesocnemis Robusta
''Mesocnemis robusta'' is a species of white-legged damselfly in the family Platycnemididae. The IUCN conservation status of ''Mesocnemis robusta'' is "LC", least concern, with no immediate threat to the species' survival. The IUCN status was reviewed in 2010. References Further reading * Platycnemididae Articles created by Qbugbot Insects described in 1886 {{Platycnemididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesocnemis Saralisa
''Mesocnemis saralisa'' is a species of white-legged damselfly in the family Platycnemididae. The IUCN conservation status of ''Mesocnemis saralisa'' is "LC", least concern, with no immediate threat to the species' survival. The IUCN status was reviewed in 2017. References Further reading * Platycnemididae Articles created by Qbugbot Insects described in 2008 {{Platycnemididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesocnemis Tisi
''Mesocnemis tisi'' is a species of white-legged damselfly in the family Platycnemididae. The IUCN conservation status of ''Mesocnemis tisi'' is "EN", endangered. The species faces a high risk of extinction in the near future. The IUCN status was reviewed in 2010. References Further reading * Platycnemididae Articles created by Qbugbot Insects described in 1992 {{Platycnemididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platycnemididae
The Platycnemididae are a family of damselflies. They are known commonly as white-legged damselflies. There are over 400 species native to the Old World.Dijkstra, K. D. B., Kalkman, V. J., Dow, R. A., Stokvis, F. R., & Van Tol, J. (2014)Redefining the damselfly families: a comprehensive molecular phylogeny of Zygoptera (Odonata).''Systematic Entomology'', 39(1), 68-96. The family is divided into several subfamilies. Genera There are about 50 genera of Platycnemididae.Theischinger, G., Gassmann, D., & Richards, S. J. (2015)''Macrocnemis gracilis'', a new genus and species of Idiocnemidinae (Zygoptera: Platycnemididae) from Papua New Guinea.''Zootaxa'', 3990(3), 429. Genera include: * '' Allocnemis'' Selys, 1863 * '' Arabicnemis'' Waterston, 1984 * ''Arabineura'' Schneider & Dumont, 1995 * '' Archboldargia'' Lieftinck, 1949 * '' Arrhenocnemis'' Lieftinck, 1933 * '' Asthenocnemis'' Lieftinck, 1949 * '' Caconeura'' Kirby, 1890 * '' Calicnemia'' Strand, 1928 * '' Ciliagrion'' Sjö ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand Karsch
Ferdinand Anton Franz Karsch or Karsch-Haack (2 September 1853, in Münster – 20 December 1936, in Berlin) was a German arachnologist, entomologist and anthropologist. The son of a doctor, Karsch was educated at the Friedrich Wilhelm University in Berlin and published a thesis on the gall wasp in 1877. From 1878 to 1921 he held the post of curator at the Museum für Naturkunde Berlin. Between 1873 and 1893, he published a catalogue of the spiders of Westphalia; he also published numerous articles on the specimens that the museum received from various explorers and naturalists working in Africa, in China, in Japan, in Australia, etc. This publication of others' work sometimes led to disputes over priority and nomenclature, for example with Pickard-Cambridge. Alongside his zoological activities, he published many works on sexuality and, in particular, homosexuality in both the animal kingdom and in so-called "primitive" peoples, including ''Das gleichgeschlechtliche Leben ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young population make Afr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damselfly
Damselflies are flying insects of the suborder Zygoptera in the order Odonata. They are similar to dragonflies, which constitute the other odonatan suborder, Anisoptera, but are smaller and have slimmer bodies. Most species fold the wings along the body when at rest, unlike dragonflies which hold the wings flat and away from the body. An ancient group, damselflies have existed since at least the Lower Permian, and are found on every continent except Antarctica. All damselflies are predatory insects; both nymphs and adults actively hunt and eat other insects. The nymphs are aquatic, with different species living in a variety of freshwater habitats including acidic bogs, ponds, lakes and rivers. The nymphs moult repeatedly, at the last moult climbing out of the water to undergo metamorphosis. The skin splits down the back, they emerge and inflate their wings and abdomen to gain their adult form. Their presence on a body of water indicates that it is relatively unpolluted, but the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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