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Prays Fraxinella
''Prays fraxinella'', also known as the ash bud moth, is a moth of the family Plutellidae found in Europe. The larvae are leaf miners, feeding on the leaves and buds of ash trees. Description The wingspan is 14–18 mm. The head is white or greyish ochreous. Forewings are white or greyish-ochreous; some blackish dorsal strigulae; a triangular blackish blotch, lighter or mixed with whitish on costa, extending along costa from near base to 2/3; some irregular blackish marks towards termen; sometimes the whole wing is unicolorous dark fuscous. Hind wings are rather dark grey. The larva is greenish, marbled with red -brown above; dorsal line deep green; head pale brown, dark-spotted; 2 with two black spots. Adults are on wing from May to June and again in August in two generations depending on the location. ''Prays fraxinella'' has two colour forms, the typical white and black colouration and the melanic form ''f.rustica''. Recently, the form ''f.rustica'', that has an orang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clas Bjerkander
Clas Bjerkander (23 September 1735, Skara – 1 August 1795) was a Swedish meteorologist, botanist, and entomologist. A Lutheran pastor, Bjerkander studied at the University of Uppsala. With Anders Dahl he wrote ''Svenska Topographiska Sällskapet i Skara'' ("Schwedische topographische Gesellschaft zu Skara") and, as sole author several short scientific papers on Microlepidoptera. Taxa named for him include *'' Pyralis bjerkandriana'' (Mehlmotte) *'' Bjerkandera'' P. Karst In 1778, Bjerkander was elected a member of the Royal Swedish Academy of Sciences. References *Heinrich Dörfelt, Heike Heklau: ''Die Geschichte der Mykologie.'' 1998 External links AnimalbaseTaxa In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and ... described by Bjerkandar and list of papers. 1735 b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moth
Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (suborder Rhopalocera) and neither subordinate taxon is used in modern classifications. Moths make up the vast majority of the order. There are approximately 160,000 species of moth, many of which have yet to be described. Most species of moth are nocturnal, although there are also crepuscular and Diurnal animal, diurnal species. Differences between butterflies and moths While the Butterfly, butterflies form a monophyly, monophyletic group, the moths, comprising the rest of the Lepidoptera, do not. Many attempts have been made to group the superfamilies of the Lepidoptera into natural groups, most of which fail because one of the two groups is not monophyletic: Microlepidoptera and Macrolepidoptera, Heterocera and Rhopalocera, Jugatae a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plutellidae
The Plutellidae are a family of moths commonly known as the diamondback moths, named after the diamondback moth (''Plutella xylostella'') of European origin. It was once considered to have three subfamilies: Plutellinae, Praydinae, and Scythropiinae. Praydinae was later elevated to its own family, Praydidae, while Scythropiinae has variously been moved to Yponomeutidae or also elevated to its own family. Characteristics Moths in this family are small to medium in size with wingspans ranging from . The head usually bears smooth scales and the antennae are often thickened in the middle. The wings are elongated and the hindwings often bear long fringes. The forewings often appear to be sickle-shaped because of the arrangement of the fringes. The colouring is generally drab, with various banding and marking. The adults are mostly nocturnal or crepuscular. The larvae feed on the surfaces of leaves which they skeletonise. The host plants vary, but many are in the family Brassicacea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east. Europe shares the landmass of Eurasia with Asia, and of Afro-Eurasia with both Africa and Asia. Europe is commonly considered to be Boundaries between the continents#Asia and Europe, separated from Asia by the Drainage divide, watershed of the Ural Mountains, the Ural (river), Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea, and the waterway of the Bosporus, Bosporus Strait. "Europe" (pp. 68–69); "Asia" (pp. 90–91): "A commonly accepted division between Asia and Europe ... is formed by the Ural Mountains, Ural River, Caspian Sea, Caucasus Mountains, and the Black Sea with its outlets, the Bosporus and Dardanelles." Europe covers approx. , or 2% of Earth#Surface, Earth's surface (6.8% of Earth's land area), making it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Miner
A leaf miner is any one of numerous species of insects in which the larval stage lives in, and eats, the leaf tissue of plants. The vast majority of leaf-mining insects are moths (Lepidoptera), sawflies (Symphyta, a paraphyletic group which Apocrita (wasps, bees and ants) evolved from), and flies (Diptera). Some beetles also exhibit this behavior. Like woodboring beetles, leaf miners are protected from many predators and plant defenses by feeding within the tissues of the leaves, selectively eating only the layers that have the least amount of cellulose. When consuming ''Quercus robur'' (English oak), they also selectively feed on tissues containing lower levels of tannin, a deterrent chemical produced in great abundance by the tree. The pattern of the feeding tunnel and the layer of the leaf being mined is often diagnostic of the insect responsible, sometimes even to species level. The mine often contains frass, or droppings, and the pattern of frass deposition, mine sha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fraxinus
''Fraxinus'' (), commonly called ash, is a genus of plants in the olive and lilac family, Oleaceae, and comprises 45–65 species of usually medium-to-large trees, most of which are deciduous trees, although some Subtropics, subtropical species are evergreen trees. The genus is widespread throughout much of Europe, Asia, and North America. The leaves are opposite leaves, opposite (rarely in Whorl (botany), whorls of three), and mostly pinnate, pinnately compound, though simple in a few species. The seeds, popularly known as "keys" or "helicopter seeds", are a type of fruit known as a samara (fruit), samara. Some ''Fraxinus'' species are Dioecy, dioecious, having male and female flowers on separate plants but sex in ash is expressed as a continuum between male and female individuals, dominated by unisexual trees. With age, ash may change their sexual function from predominantly male and hermaphrodite towards femaleness; if grown as an ornamental and both sexes are present, ashes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wingspan
The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the opposite wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of , the official record for a living bird. The term wingspan, more technically 'extent' , is also used for other winged animals such as pterosaurs, bats, insects, etc., and other aircraft such as ornithopters. In humans, the term wingspan also refers to the arm span, which is the distance between the length from the end of an individual's arm (measured at the fingertips) to the individual's fingertips on the other arm when raised parallel to the ground at shoulder height. Wingspan of aircraft The wingspan of an aircraft is always measured in a straight line, from wingtip to wingtip, regardless of wing shape or sweep. Implications for aircraft design and animal evolution The lift from wings is proportional to their area, so the h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prays Ruficeps
''Prays ruficeps'' is a moth of the family Plutellidae. It is found in Northern Europe, Northern and Central Europe. The wingspan is 14–17 mm. The larvae feed on ash (''Fraxinus excelsior''). References *Aaarvik, L. et al. ,2017 Nordic-Baltic Checklist of Lepidoptera. ''Norwegian Journal of Entomology'' - Supplement No. 3: 1–236. *Heinemann, 1854): Zehn neue Microlepidoptern. ''Zeitschrift für Entomologie im Auftrage des Vereins für schlesische Insektenkunde zu Breslau'' 8: 1–7. Breslau (J. Urban Kern). *Huemer, P., 2013 Die Schmetterlinge Österreichs (Lepidoptera). Systematische und faunistische Checkliste. ''Studiohefte'' 12: 1–304. External linksSwedish Moths Plutellidae Moths of Europe Moths described in 1854 Taxa named by Hermann von Heinemann {{Yponomeutoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fraxinus Excelsior
''Fraxinus excelsior'', known as the ash, or European ash or common ash to distinguish it from other types of ash, is a flowering plant species in the olive family Oleaceae. It is native throughout mainland Europe east to the Caucasus and Alborz mountains, and west to Great Britain and Ireland, the latter determining its western boundary. The northernmost location is in the Trondheimsfjord region of Norway.Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins . The species is widely cultivated and reportedly naturalised in New Zealand and in scattered locales in the United States and Canada. Description It is a large deciduous tree growing to (exceptionally to ) tall with a trunk up to (exceptionally to ) diameter, with a tall, narrow crown. The bark is smooth and pale grey on young trees, becoming thick and vertically fissured on old trees. The shoots are stout, greenish-grey, with jet-black buds (which distinguish it from most other ash species, which have g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fraxinus Ornus
''Fraxinus ornus'', the manna ash or South European flowering ash, is a species of ''Fraxinus'' native to Southern Europe and Southwestern Asia, from Spain and Italy north to Austria and the Czech Republic, and east through the Balkans, Turkey, and western Syria to Lebanon and Armenia.Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins .Flora Europaea''Fraxinus ornus''/ref>Med-Checklist''Fraxinus ornus''/ref> Description ''Fraxinus ornus'' is a medium-sized deciduous tree growing to tall with a trunk up to 1 m diameter. The Bark (botany), bark is dark grey, remaining smooth even on old trees. The buds are pale pinkish-brown to grey-brown, with a dense covering of short grey hairs. The leaf, leaves are in opposite pairs, pinnate, long, with 5 to 9 leaflets; the leaflets are broad ovoid, long and broad, with a finely serrated and wavy margin, and short but distinct petiole (botany), petiolules long; the autumn colour is variable, yellow to purplish. The flowers ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Entomologist's Record And Journal Of Variation
''The Entomologist's Record and Journal of Variation'' is a bimonthly peer-reviewed entomological journal. Its emphasis is British and European Lepidoptera, but material on other insect order Order, ORDER or Orders may refer to: * A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica * Categorization, the process in which ideas and objects are recognized, differentiated, and understood ...s is also published regularly. It was established by J. W. Tutt in 1890. Its current editor is Colin W. Plant. Two long-running series featured in the journal are the annual reports on immigration of Lepidoptera into the British Isles, and an annual review of the Microlepidoptera recorded from Britain. The ''Entomologist's Record and Journal of Variation'' became a publication of the Amateur Entomologists' Society in January 2009. External links * Amateur Entomologists' SocietyNews announcement regarding the change in publisher Entomolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
