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Iteomyia Capreae
''Iteomyia capreae'' is a gall midge which forms galls on willows (''Salix'' species). It was first described by Johannes Winnertz Johannes Winnertz (11 February 1800 – 24 July 1890) was a German entomologist specialising in Diptera. He was a dealer in Krefeld. Works * ''Beitrag zur Kenntniss der Gattung Ceratopogon Meigen''. 1852 * ''Beitrag zu einer Monographie der G ... in 1853. Description of the gall The midge forms two different galls which can be found, either on the leaf bade or on a side-vein of a leaf. * in the leaf blade the gall is a hard, domed pouch above, and below it is conical, with a red-rimmed opening. The opening is hairless and initially greenish, later becoming yellow, brown, purple or red. It contains a single larva which is white at first and later orange or red. * the side-vein is a 2–3 mm long, hard swelling, containing the larva. When mature the larvae drop from the gall, overwintering in the soil and pupating in the spring. The gal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Winnertz
Johannes Winnertz (11 February 1800 – 24 July 1890) was a German entomologist specialising in Diptera. He was a dealer in Krefeld. Works * ''Beitrag zur Kenntniss der Gattung Ceratopogon Meigen''. 1852 * ''Beitrag zu einer Monographie der Gallmücken''. 1853 * ''Beitrag zu einer Monographie der Pilzmücken''. 1863 * ''Beitrag zu einer Monographie der Sciarinen''. Wien, 1867 Collections Winnertz' collections of Diptera are in Senckenberg Museum, Naturhistorisches Museum Vienna and the Natural History Museum, Bonn The federal city of Bonn ( lat, Bonna) is a city on the banks of the Rhine in the German state of North Rhine-Westphalia, with a population of over 300,000. About south-southeast of Cologne, Bonn is in the southernmost part of the Rhine-Ru .... References Sources * Osten-Sacken, C. R. 1903: ''Record of my life and work in entomology''. - Cambridge (Mass.) 1800 births 1896 deaths German entomologists Dipterists {{Germany-scientist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Daphnoides
''Salix daphnoides'', the European violet willow, is a species of plant in the family Salicaceae. It can grow as a large shrub or small tree, normally reaching a height of , but can grow up to tall. Description It has a rounded crown with spreading branches with smooth, grey bark. The twigs are dark red/brown in colour, hairless and somewhat shiny. It has large buds, either hairless or with stiff, erect hairs. The leaves are oblong to narrow/obovate, normally between 7 and 12 cm long and 2 to 3 cm in width. They are hairy at first, but soon become glabrous, being a dark shiny green on their upper surfaces, and glaucous on their undersides. The catkins appear in February–March. Distribution and habitat Salix daphnoides occurs scattered across central Europe between the Baltic states and Piedmont, and from the Balkans to eastern France. It is native in the Alps, Pyrenees and the Carpathians, but has been naturalised by cultivation across a much wider area. It occurs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insects Described In 1853
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. Insect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diptera Of Asia
Flies are insects of the order Diptera, the name being derived from the Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advanced mechanosensory organs known as halteres, which act as high-speed sensors of rotational movement and allow dipterans to perform advanced aerobatics. Diptera is a large order containing an estimated 1,000,000 species including horse-flies, crane flies, hoverflies and others, although only about 125,000 species have been described. Flies have a mobile head, with a pair of large compound eyes, and mouthparts designed for piercing and sucking (mosquitoes, black flies and robber flies), or for lapping and sucking in the other groups. Their wing arrangement gives them great maneuverability in flight, and claws and pads on their feet enable them to cling to smooth surfaces. Flies undergo complete metamorphosis; the eggs are often laid on the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Appendiculata
''Salix appendiculata'' is a plant from the willow genus (''Salix''). They can be found in France, Italy, Central and Eastern Europe, and on the Balkan Peninsula. Description The large-leaved willow is a 2 to 6 meter high shrub or tree with a rounded crown. The branches are gray-green, dark brown or red-brown and show indistinct stripes. The bark of young thin twigs is downy hairy and later becomes more or less bare. The leaves are divided into a petiole and a leaf blade. The petiole is about 1 inch long. The simple leaf blade is 4 to 18 centimeters long and 3 to 5 centimeters wide obovate to obovate-lanceolate, pointed and gradually narrowed towards the base. The leaf margin is notched or serrated. The upper side of the leaf is deep green, wrinkled and bare except for the leaf veins, the underside of the leaf is scattered hairy with strongly protruding leaf veins. There are 12 to 15 pairs of nerves. The stipules are heart- or kidney-shaped. The flowers are arranged in sitting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Cinerea
''Salix cinerea'' (common sallow, grey sallow, grey willow, grey-leaved sallow, large grey willow, pussy willow, rusty sallow) is a species of willow native to Europe and western Asia.Meikle, R. D. (1984). ''Willows and Poplars of Great Britain and Ireland''. BSBI Handbook No. 4. .Christensen, K. I., & Nielsen, H. (1992). Rust-pil (''Salix cinerea'' subsp. ''oleifolia'') - en overset pil i Danmark og Skandinavien. ''Dansk Dendrologisk Årsskrift'' 10: 5-17. The plant provides a great deal of nectar for pollinators. It was rated in the top 10, with a ranking of second place, for most nectar production (nectar per unit cover per year) in a UK plants survey conducted by the AgriLand project which is supported by the UK Insect Pollinators Initiative. Plant It is a deciduous shrub or small tree growing 4–15 metres (13–50 ft) tall. The leaves are spirally arranged, 2–9 cm (1– in) long and 1–3 cm (– in) broad (exceptionally up to 16 cm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Caprea
''Salix caprea'', known as goat willow, pussy willow or great sallow, is a common species of willow native to Europe and western and central Asia.Meikle, R. D. (1984). ''Willows and Poplars of Great Britain and Ireland''. BSBI Handbook 4. . Description It is a deciduous shrub or small tree, reaching a height of , rarely to 13 m. The leaves are 3–12 cm long and from 2–8 cm wide, broader than most other willows. The flowers are soft silky, and silvery 3-7-cm-long catkins are produced in early spring before the new leaves appear; the male and female catkins are on different plants (dioecious). The male catkins mature yellow at pollen release, the female catkins mature pale green. The fruit is a small capsule 5–10 mm long containing numerous minute seeds embedded in fine, cottony hairs. The seeds are very small (about 0.2 mm) with the fine hairs aiding dispersal; they require bare soil to germinate.Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins. . The tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Aurita
''Salix aurita'', the eared willow, is a species of willow distributed over much of Europe, and occasionally cultivated. It is a shrub to 2.5 m in height, distinguished from the similar but slightly larger ''Salix cinerea'' by its reddish petioles and young twigs. It was named for its persistent kidney-shaped stipule In botany, a stipule is an outgrowth typically borne on both sides (sometimes on just one side) of the base of a leafstalk (the petiole). Stipules are considered part of the anatomy of the leaf of a typical flowering plant, although in many speci ...s along the shoots. References External links * * * aurita Plants described in 1753 Taxa named by Carl Linnaeus {{Salicaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cecidomyiidae
Cecidomyiidae is a family of flies known as gall midges or gall gnats. As the name implies, the larvae of most gall midges feed within plant tissue, creating abnormal plant growths called galls. Cecidomyiidae are very fragile small insects usually only in length; many are less than long. They are characterised by hairy wings, unusual in the order Diptera, and have long antennae. Some Cecidomyiids are also known for the strange phenomenon of paedogenesis in which the larval stage reproduces without maturing first. In some species, the daughter larvae consume the mother, while in others, reproduction occurs later on in the egg or pupa. More than 6,650 species and 830 genera are described worldwide, though this is certainly an underestimate of the actual diversity of this family. A DNA barcoding study published in 2016 estimated the fauna of Canada alone to be in excess of 16,000 species, hinting at a staggering global count of over 1 million cecidomyiid species that have yet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Myrsinifolia
''Salix myrsinifolia'', known as the dark-leaved willow or myrsine-leaved willow, is a species of willow native to Europe and Western Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part of .... It forms a high shrub. In the north it often becomes a tree up to tall.Väre H., Kiuru H., ''Suomen puut ja pensaat'' (''Trees and shrubs of Finland''), Metsäkustannus Oy, 2006. References myrsinifolia {{Salicaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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