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Chalk-hill Blue
The chalkhill blue (''Lysandra coridon'') is a butterfly in the family Lycaenidae. It is a small butterfly that can be found throughout the Palearctic realm, where it occurs primarily in grasslands rich in chalk. Males have a pale blue colour, while females are dark brown. Both have chequered fringes around their wings. Subspecies Subspecies include: * ''Lysandra coridon coridon'' * ''Lysandra coridon borussia'' (Dadd, 1908) – ( Urals) * ''Lysandra coridon asturiensis'' (Sagarra, 1922) – ( Spain) Ecology Description ''Lysandra coridon'' has a wingspan of .Simon CoombeCaptain's European Butterfly Guide/ref> These small butterflies present a sexual dimorphism. The males having pale silvery-blue upperside of the wings with a submarginal line of grey spots on the hindwings and a thin brown and white chequered fringe. Females have dark brown upperside of wings, with marginal orange spots and also with chequered fringes. The underside of the wings show a light ochre colour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikolaus Poda Von Neuhaus
Nikolaus Poda von Neuhaus (4 October 1723 – 29 April 1798) was an Austrian entomologist Entomology () is the scientific study of insects, a branch of zoology. In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arach .... In his branch of natural history, the short name Poda refers to him. Poda was born and died in Vienna. He was the author of ''Insecta Musei Graecensis'' (1761), the first purely entomological work to follow the binomial nomenclature of Carl Linnaeus. External linksLandes Museum * Insecta musaei Graecensis (Pdf) at [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyommatus Coridon Egg
''Polyommatus'' is a genus of butterflies Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ... in the family Lycaenidae. Its species are found in the Palearctic realm. Taxonomy Recent molecular studies have demonstrated that '' Cyaniris'', '' Lysandra'', and '' Neolysandra'' are different genera from ''Polyommatus'', where they had been included, sometimes as subgenera. Some authors still recognize other subgenera, such as ''Agrodiaetus'', ''Bryna'', ''Meleageria'', and ''Plebicula''. List of species References * (2012): Establishing criteria for higher-level classification using molecular data: the systematics of ''Polyommatus'' blue butterflies (Lepidoptera, Lycaenidae). '' Cladistics''. 10.1111/j.1096-0031.2012.00421.x * (2010): "How common are dot-like distributions? ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympatry
In biology, two related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter one another. An initially interbreeding population that splits into two or more distinct species sharing a common range exemplifies sympatric speciation. Such speciation may be a product of reproductive isolation – which prevents hybrid offspring from being viable or able to reproduce, thereby reducing gene flow – that results in genetic divergence. Sympatric speciation may, but need not, arise through secondary contact, which refers to speciation or divergence in allopatry followed by range expansions leading to an area of sympatry. Sympatric species or taxa in secondary contact may or may not interbreed. Types of populations Four main types of population pairs exist in nature. Sympatric populations (or species) contrast with parapatric populations, which contact one another in adjacent but not shared ranges and do not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allopatric Speciation
Allopatric speciation () – also referred to as geographic speciation, vicariant speciation, or its earlier name the dumbbell model – is a mode of speciation that occurs when biological populations become geographically isolated from each other to an extent that prevents or interferes with gene flow. Various geographic changes can arise such as the movement of continents, and the formation of mountains, islands, bodies of water, or glaciers. Human activity such as agriculture or developments can also change the distribution of species populations. These factors can substantially alter a region's geography, resulting in the separation of a species population into isolated subpopulations. The vicariant populations then undergo genetic changes as they become subjected to different selective pressures, experience genetic drift, and accumulate different mutations in the separated populations' gene pools. The barriers prevent the exchange of genetic information betwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lysandra Hispana
''Lysandra hispana'', the Provence chalk-hill blue, is a butterfly of the family Lycaenidae. It is found in Spain, southern France and northern Italy. The wingspan is 16–18 mm. It is very similar to ''Lysandra coridon The chalkhill blue (''Lysandra coridon'') is a butterfly in the family Lycaenidae. It is a small butterfly that can be found throughout the Palearctic realm, where it occurs primarily in grasslands rich in chalk. Males have a pale blue colour, wh ...'' but is paler (greyer and duller, greyish pearly-blue, nacreous blue) with the distal margin more strongly spotted. However both are very variable. The butterfly is on wing from April to September in two generations. The habitat is dry grassland on chalk or limestone. The larvae feed on horseshoe vetch. Lysandra (butterfly) Butterflies described in 1852 Butterflies of Europe {{Polyommatini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alloenzyme
Alloenzymes (or also called allozymes) are variant forms of an enzyme which differ structurally but not functionally from other allozymes coded for by different alleles at the same locus. These are opposed to isozymes, which are enzymes that perform the same function, but which are coded by genes located at different loci. Alloenzymes are common biological enzymes that exhibit high levels of functional evolutionary conservation throughout specific phyla and kingdoms. They are used by phylogeneticists as molecular markers to gauge evolutionary histories and relationships between different species. This can be done because allozymes do not have the same structure. They can be separated by capillary electrophoresis. However, some species are monomorphic for many of their allozymes which would make it difficult for phylogeneticists to assess the evolutionary histories of these species. In these instances, phylogeneticists would have to use another method to determine the evolutionary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitoid
In evolutionary ecology, a parasitoid is an organism that lives in close association with its host (biology), host at the host's expense, eventually resulting in the death of the host. Parasitoidism is one of six major evolutionarily stable strategy, evolutionary strategies within parasitism, distinguished by the fatal prognosis for the host, which makes the strategy close to predation. Among parasitoids, strategies range from living inside the host (''endoparasitism''), allowing it to continue growing before emerging as an adult, to Paralysis, paralysing the host and living outside it (''ectoparasitism''). Hosts can include other parasitoids, resulting in hyperparasitism; in the case of oak galls, up to five levels of parasitism are possible. Some parasitoids Behavior-altering parasite, influence their host's behaviour in ways that favour the propagation of the parasitoid. Parasitoids are found in a variety of Taxon, taxa across the insect superorder Endopterygota, whose compl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tapinoma
''Tapinoma'' (from Greek ''ταπείνωμα'' low position) is a genus of ants that belongs to the subfamily Dolichoderinae. The genus currently comprises 74 described species distributed worldwide in tropical and temperate regions. Members of are generalized foragers, nesting in a wide variety of habitats, ranging from grasslands, open fields, woodlands, to inside buildings. The majority of species nest in the ground under objects such as stones or tree logs, other species build nests under bark of logs and stumps, in plant cavities, insect galls or refuse piles. Species *'' Tapinoma aberrans'' (Santschi, 1911) *'' Tapinoma acuminatum'' Forel, 1907 *'' Tapinoma albinase'' (Forel, 1910) *'' Tapinoma albomaculatum'' (Karavaiev, 1926) *'' Tapinoma amazone'' Wheeler, 1934 *'' Tapinoma andamanense'' Forel, 1903 *'' Tapinoma annandalei'' (Wheeler, 1928) *'' Tapinoma antarcticum'' Forel, 1904 *'' Tapinoma arnoldi'' Forel, 1913 *'' Tapinoma atriceps'' Emery, 1888 *†'' Tapinoma bacu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphaenogaster
''Aphaenogaster'' is a genus of myrmicine ants. About 200 species have been described, including 18 fossil species. They occur worldwide except in South America south of Colombia, sub-Saharan Africa, and Antarctica. They are often confused with '' Pheidole'' or '' Pheidologeton''. These two have major and minor workers, while ''Aphaenogaster'' has only a single worker caste. ''Pheidole'' has three-segmented clubs on its antennae, while ''Aphaenogaster'' has four segments and a larger body size. ''Pheidologeton'' has 11-segmented antennae, while the antennae in ''Aphaenogaster'' are 12-segmented.Genus ''Aphaenogaster'' In Australia, they often build dense, conspicuous nests.Richards, P.J. (2009) ''Aphaenogaster'' ants as bioturbators: impacts on soil and slope processes. Earth-Science Reviews ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetramorium
''Tetramorium'' is a genus of ants in the subfamily Myrmicinae that includes more than 520 species. These ants are also known as pavement ants. Taxonomy and phylogeny ''Tetramorium'' was first described by Gustav Mayr in 1855 in the same publication as ''Monomorium''. Revision within the genus by Wagner et al. in 2017 recognized a complex of 10 cryptic species, 3 of which were raised from subspecies classifications and 2 of which were newly described. This revision also elevated the pavement ant introduced to North America as the species ''T. immigrans'' rather than the previous designation as a subspecies of ''T. caespitum''. These 10 species within in the ''T. caespitum'' complex are as follows: * ''Tetramorium alpestre'' Steiner, Schlick-Steiner & Seifert, 2010 * ''Tetramorium breviscapus'' Wagner et al., 2017 * ''Tetramorium caespitum'' (Linnaeus, 1758) * ''Tetramorium caucasicum'' Wagner et al., 2017 * ''Tetramorium fusciclava'' Consani & Zangheri, 1952 * ''Tetramorium hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plagiolepis
''Plagiolepis'' is an ant genus of the formic acid-producing subfamily Formicinae. The genus is found in tropical and temperate regions of the Old World. Species *''Plagiolepis abyssinica'' Forel, 1894 *'' Plagiolepis adynata'' Bolton, 1995 *'' Plagiolepis alluaudi'' Emery, 1894 *'' Plagiolepis ampeloni'' (Faber, 1969) *''Plagiolepis ancyrensis'' Santschi, 1920 *''Plagiolepis arnoldii'' Dlussky, Soyunov & Zabelin, 1990 *''Plagiolepis augusti'' Emery, 1921 *''Plagiolepis balestrierii'' Menozzi, 1939 *†''Plagiolepis balticus'' Dlussky, 1997 *''Plagiolepis bicolor'' Forel, 1901 *''Plagiolepis boltoni'' Sharaf, Aldawood & Taylor, 2011 *''Plagiolepis breviscapa'' Collingwood & Van Harten, 2005 *''Plagiolepis brunni'' Mayr, 1895 *''Plagiolepis calva'' Radchenko, 1996 *'' Plagiolepis capensis'' Mayr, 1865 *'' Plagiolepis cardiocarenis'' Chang & He, 2002 *'' Plagiolepis chirindensis'' Arnold, 1949 *'' Plagiolepis clarki'' Wheeler, 1934 *'' Plagiolepis compressa'' Radchenko, 1996 *'' Pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formica
''Formica'' is a genus of ants of the family Formicidae, commonly known as wood ants, mound ants, thatching ants, and field ants. ''Formica'' is the type genus of the Formicidae, and of the subfamily Formicinae. The type species of genus ''Formica'' is the European red wood ant ''Formica rufa''. Ants of this genus tend to be between 4 and 8 mm long. Habitat As the name wood ant implies, many ''Formica'' species live in wooded areas where no shortage of material exists with which they can thatch their mounds (often called anthills). One shade-tolerant species is '' F. lugubris''. However, sunlight is important to most ''Formica'' species, and colonies rarely survive for any considerable period in deeply shaded, dense woodland. The majority of species, especially outside the ''F. rufa'' species group, are inhabitants of more open woodlands or treeless grassland or shrubland. In North America, at least, these habitats had a long history of frequent landscape-scale fires t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_coridon_-_Aberrant_male.JPG "Click for more on -> Chalk-hill Blue")
