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Crych Blomer ( Welsh )

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Gwyfyn sy'n perthyn i urdd y Lepidoptera yw crych Blomer, sy'n enw gwrywaidd; yr enw lluosog ydy crychion Blomer; yr enw Saesneg yw Blomer's Rivulet, a'r enw gwyddonol yw Discoloxia blomeri.[2][3]

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Darlun o lyfr John Curtis: British Entomology Cyfrol 6

Gellir dosbarthu'r pryfaid (neu'r Insecta) sy'n perthyn i'r Urdd a elwir yn Lepidoptera yn ddwy ran: y gloynnod byw a'r gwyfynod. Mae'r dosbarthiad hwn yn cynnyws mwy na 180,000 o rywogaethau mewn tua 128 o deuluoedd.

Wedi deor o'i ŵy mae'r crych Blomer yn lindysyn sydd yn bwyta llawer o ddail, ac wedyn mae'n troi i fod yn chwiler. Daw allan o'r chwiler ar ôl rhai wythnosau. Mae pedwar cyfnod yng nghylchred bywyd glöynnod byw a gwyfynod: ŵy, lindysyn, chwiler ac oedolyn.

Gweler hefyd

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Cyfeiriadau

  1. Venusia at funet
  2. Gwefan Cyngor Cefn Gwlad Cymru. Cyngor Cefn Gwlad Cymru. Adalwyd ar 29 Chwefror 2012.
  3. Geiriadur enwau a thermau ar Wefan Llên Natur. Adalwyd 13/12/2012.
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Crych Blomer: Brief Summary ( Welsh )

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Gwyfyn sy'n perthyn i urdd y Lepidoptera yw crych Blomer, sy'n enw gwrywaidd; yr enw lluosog ydy crychion Blomer; yr enw Saesneg yw Blomer's Rivulet, a'r enw gwyddonol yw Discoloxia blomeri.

 src= Darlun o lyfr John Curtis: British Entomology Cyfrol 6

Gellir dosbarthu'r pryfaid (neu'r Insecta) sy'n perthyn i'r Urdd a elwir yn Lepidoptera yn ddwy ran: y gloynnod byw a'r gwyfynod. Mae'r dosbarthiad hwn yn cynnyws mwy na 180,000 o rywogaethau mewn tua 128 o deuluoedd.

Wedi deor o'i ŵy mae'r crych Blomer yn lindysyn sydd yn bwyta llawer o ddail, ac wedyn mae'n troi i fod yn chwiler. Daw allan o'r chwiler ar ôl rhai wythnosau. Mae pedwar cyfnod yng nghylchred bywyd glöynnod byw a gwyfynod: ŵy, lindysyn, chwiler ac oedolyn.

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Bergulmen-Spanner ( German )

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Der Bergulmen-Spanner (Venusia blomeri, Syn.: Discoloxia blomeri) oder Ulmen-Blattspanner ist ein Schmetterling (Nachtfalter) aus der Familie der Spanner (Geometridae). Die Art wurde von John Curtis nach dem britischen Amateurentomologen Charles Blomer benannt.

Merkmale

Falter

Die Flügelspannweite der Falter beträgt 20 bis 26 Millimeter. Die Vorderflügel besitzen eine grauweiße Färbung mit einigen verwischten dunklen Querlinien. Das Wurzelfeld ist ungleichmäßig hellbraun überstäubt. Vor der Flügelspitze befindet sich ein großer kastanienbrauner Fleck, der zum Mittelfeld hin dunkel begrenzt ist und sich in abgeschwächter, sich verjüngender Form bis zum Innenrand ausdehnt. Diese Zeichnung charakterisiert die Art eindeutig. Die weißgrauen Hinterflügel zeigen einige undeutliche dunkle Querlinien.

Ei, Raupe, Puppe

Das Ei ist gelb, klein, eckig, flach und besitzt rautenförmige Vertiefungen. Die Raupe ist gelblich oder hellgrün gefärbt. Kopf, Brustsegment und das vorletzte Segment sind auffallend rotbraun. Die Puppe ist gedrungen mit sich verjüngendem Hinterleib und gekrümmten Haken am Kremaster.[1]

Synonyme

  • Discoloxia blomeri
  • Larentia blomeri

Vorkommen

Die Art kommt in Mittel- und Osteuropa, Großbritannien, Skandinavien sowie Nordasien vor. Sie ist insbesondere in höheren Mittelgebirgen, im Alpenvorland sowie den Alpen anzutreffen und bevorzugt felsige Waldtäler, steinige Halden und Schluchten.

Lebensweise

Die nachtaktiven Falter fliegen in zwei Generationen von Ende Mai bis Ende Juli bzw. von Ende August bis Ende September. Dementsprechend sind die Raupenzeiten von September bis Oktober und von Juli bis August. Die Raupen ernähren sich von den Blättern der Bergulme (Ulmus glabra) oder der Feldulme (Ulmus minor) und verpuppen sich in einem Gespinst zwischen den Blättern.[2] Die Puppen überwintern.

Gefährdung

In Deutschland kommt die Art vereinzelt vor und wird auf der Roten Liste gefährdeter Arten in Kategorie 3 (gefährdet) geführt.[3]

Quellen

Einzelnachweise

  1. W. Forster, T. A. Wohlfahrt: Spanner. Franckh'sche Verlagshandlung, Stuttgart, 1974. ISBN 3-440-46625-6
  2. Manfred Koch, Wolfgang Heinicke, Bernd Müller: Wir bestimmen Schmetterlinge. Band 4: Spanner. 2., verbesserte und erweiterte Auflage. Neumann, Leipzig/Radebeul 1976, .
  3. Bundesamt für Naturschutz (Hrsg.): Rote Liste gefährdeter Tiere Deutschlands. Landwirtschaftsverlag, Münster 1998. ISBN 978-3-896-24110-8

Literatur

  • W. Forster, T. A. Wohlfahrt: Spanner. Franckh'sche Verlagshandlung, Stuttgart, 1974. ISBN 3-440-46625-6
  • Manfred Koch, Wolfgang Heinicke, Bernd Müller: Wir bestimmen Schmetterlinge. Band 4: Spanner. 2., verbesserte und erweiterte Auflage. Neumann, Leipzig/Radebeul 1976, .

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Bergulmen-Spanner: Brief Summary ( German )

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Der Bergulmen-Spanner (Venusia blomeri, Syn.: Discoloxia blomeri) oder Ulmen-Blattspanner ist ein Schmetterling (Nachtfalter) aus der Familie der Spanner (Geometridae). Die Art wurde von John Curtis nach dem britischen Amateurentomologen Charles Blomer benannt.

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Blomer's rivulet

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Blomer's rivulet (Venusia blomeri) is a species of the family Geometridae of moths, in the subfamily Larentiinae which includes the carpet moth and pugs.

Illustration from John Curtis's British Entomology Volume 6

Like most geometers the moth rests with its wings open and this reveals its main distinguishing feature — a rusty-brown patch covering the apex of the upper surface of the forewing, which contrasts with the pale grey colour of the rest of the wings. When seen up close there are faint blackish cross lines too. The egg is yellow, small, angular, flat and has diamond-shaped depressions. The caterpillar is yellowish or light green coloured. The head, a thoracic segment and the penultimate segment are strikingly reddish-brown. The pupa has curved hooks on the cremaster.

The species has a large world range, occurring from France, Britain and Scandinavia through eastern Europe and Russia to China and Japan.

Status in Britain

Blomer's rivulet is the only member of its genus found in Britain.

It is regarded by biodiversity conservation organisations as important from a conservation perspective, both in its own right due to its nationally scarce status but also as a representative of a group of moths which are specialised feeders on elm at the larval stage.

Fig 5,5a,5b,5c,5d,5e Larvae in various stages of growth

It occurs sporadically throughout Britain, mainly in broad-leaved or mixed woodland habitats, but also in hedgerows. The key habitat requirement is the presence of wych elm. Other macro-moths in the 'elm-feeding group' (i.e. moths whose caterpillars only feed on elm, as opposed to species which include elm in their diet alongside other trees) are the clouded magpie, the dusky-lemon sallow, and the lesser-spotted and white-spotted pinions – but whereas all of these species can feed on other species of elm (and some prefer other elms in fact), Blomer's rivulet appears to feed on wych elm only.

The distribution of Blomer's rivulet matches that of calcareous rocks, mainly in wetter parts of the country. The species' British distribution covers two main areas – it occurs from Devon through Somerset, Wiltshire and Bristol to South Wales and the south-west Midlands, and then again from Derbyshire and Nottinghamshire through Yorkshire to County Durham. The species is also found in the Chilterns, North Wales, Lincolnshire and Cumbria. However, despite having quite a wide geographical spread, the moth is afforded a status of Nationally Scarce (found in between 16 and 100 of Britain's 10 km squares). In Britain, the moth has a single generation per year – adults are on the wing from late May through to early July.

Etymology

The species is named after Charles Blomer, who was born in 1778 or 1779 and died in 1835, and studied insects (principally in Southwest England and South Wales) during the 1820s and 1830s. He discovered the species in Britain (at Castle Eden Dene in County Durham) during this time and it was named after him in 1832.[3]

Subspecies

  • Venusia blomeri blomeri (most of Europe, across Estonia, Latvia, Lithuania and Russia to Japan, northern and eastern China, North America)
  • Venusia blomeri euchloe Bryk, 1949 (Korea)
  • Venusia blomeri szechuanensis Wehrli, 1931 (south-western China)

References

  1. ^ Savela, Markku. "Venusia blomeri (Curtis, 1832)". Lepidoptera and Some Other Life Forms. Retrieved February 16, 2019.
  2. ^ Yu, Dicky Sick Ki. "Venusia blomeri (Curtis 1832)". Home of Ichneumonoidea. Taxapad. Archived from the original on March 24, 2016.
  3. ^ Biographical Dictionary of British Coleopterists

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Blomer's rivulet: Brief Summary

provided by wikipedia EN

Blomer's rivulet (Venusia blomeri) is a species of the family Geometridae of moths, in the subfamily Larentiinae which includes the carpet moth and pugs.

Illustration from John Curtis's British Entomology Volume 6

Like most geometers the moth rests with its wings open and this reveals its main distinguishing feature — a rusty-brown patch covering the apex of the upper surface of the forewing, which contrasts with the pale grey colour of the rest of the wings. When seen up close there are faint blackish cross lines too. The egg is yellow, small, angular, flat and has diamond-shaped depressions. The caterpillar is yellowish or light green coloured. The head, a thoracic segment and the penultimate segment are strikingly reddish-brown. The pupa has curved hooks on the cremaster.

The species has a large world range, occurring from France, Britain and Scandinavia through eastern Europe and Russia to China and Japan.

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Venusia blomeri ( Dutch; Flemish )

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Insecten

Venusia blomeri (synoniem: Discoloxia blomeri) is een nachtvlinder uit de familie van de spanners (Geometridae).

De voorvleugellengte van deze vlinder is 9 tot 13 millimeter. De lichtgrijze voorvleugel heeft bij de apex een opvallende bruine vlek met zwarte rand.

De soort gebruikt iep als waardplant. De soort vliegt in een jaarlijkse generatie van eind mei tot in juli. De rups is te vinden van eind juli tot halverwege september. De pop overwintert.

De soort komt voor van Groot-Brittannië en Frankrijk via Oost-Europa tot Japan en China. In België is de soort zeer zeldzaam uit de provincies Luik, Namen en Luxemburg. In Nederland is de soort voor zover bekend niet waargenomen.

Bronnen
  • UK Moths
  • Waring, P. & M. Townsend (2006) Nachtvlinders, veldgids met alle in Nederland en België voorkomende soorten, Baarn: Tirion.
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Almemåler ( Norwegian )

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Almemåler (Venusia blomeri) er en sommerfugl i gruppen av de egentlige målere (Geometridae). Den er funnet nord til Møre og Romsdal i Norge.

Utseende

En middelsstor (vingespenn 24 – 28 mm), slank, lysgrå måler. De kjennes særlig på den store, gulbrune flekken nær forvingens spiss. Forvingen er ganske lyst grå, langs fremkanten med flere mørke tverrstreker. Nær spissen er det et stort, trekantet, gulbrunt felt som mer kantet med svart på innersiden. I vingens ytre del er det to smale, mørke, siksak-tverrlinjer. Begge vingepar har en rad av korte, svarte streker langs ytterkanten. Bakvingen er gråhvit. Larven er naken, skarpt gul med rødbrune felter på ryggen av de fremste og bakerste kroppsleddene, og på sidene midt på.

Levevis

Arten er knyttet til alm (Ulmus glabra), som er larvenes næringsplante. De voksne målerne flyr om natten i juni – juli og kommer gjerne til lys.

Utbredelse

Arten finnes i Europa unntatt lengst i sør, og i Nord-Asia. I Norge følger den stort sett almens utbredelse og er funnet langs kysten nord til Møre og Romsdal.

Litteratur

Eksterne lenker

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Almemåler: Brief Summary ( Norwegian )

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Almemåler (Venusia blomeri) er en sommerfugl i gruppen av de egentlige målere (Geometridae). Den er funnet nord til Møre og Romsdal i Norge.

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Almlundmätare ( Swedish )

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Almlundmätare[1] (Venusia blomeri)[1][2] är en fjärilsart som beskrevs av John Curtis 1832. Almlundmätare ingår i släktet Venusia och familjen mätare, Geometridae.[1][2][3] Arten är reproducerande i Sverige.[1] En underart finns listad i Catalogue of Life,[2] Venusia blomeri euchloe Bryk, 1948.


Källor

  1. ^ [a b c d] Dyntaxa Venusia blomeri
  2. ^ [a b c] Roskov Y., Abucay L., Orrell T., Nicolson D., Flann C., Bailly N., Kirk P., Bourgoin T., DeWalt R.E., Decock W., De Wever A., eds. (9 april 2016). ”Species 2000 & ITIS Catalogue of Life: 2016 Annual Checklist.”. Species 2000: Naturalis, Leiden, the Netherlands. http://www.catalogueoflife.org/annual-checklist/2016/search/all/key/Venusia+blomeri/fossil/0/match/1. Läst 7 december 2016.
  3. ^ LepIndex: The Global Lepidoptera Names Index. Beccaloni G.W., Scoble M.J., Robinson G.S. & Pitkin B., 2005-06-15


Externa länkar


Blue morpho butterfly 300x271.jpg Denna artikel om mätare saknar väsentlig information. Du kan hjälpa till genom att tillföra sådan.
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Almlundmätare: Brief Summary ( Swedish )

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Almlundmätare (Venusia blomeri) är en fjärilsart som beskrevs av John Curtis 1832. Almlundmätare ingår i släktet Venusia och familjen mätare, Geometridae. Arten är reproducerande i Sverige. En underart finns listad i Catalogue of Life, Venusia blomeri euchloe Bryk, 1948.


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Venusia blomeri ( Vietnamese )

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Venusia blomeri là một loài bướm đêm trong họ Geometridae.[3]

Hình ảnh

Chú thích

  1. ^ Venusia at funet
  2. ^ “Home of Ichneumonoidea”. Taxapad. Dicky Sick Ki Yu. 1997–2012. Truy cập 2013.
  3. ^ Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (red.) (2011). “Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist.”. Species 2000: Reading, UK. Truy cập ngày 17 tháng 6 năm 2014.

Liên kết ngoài

 src= Wikispecies có thông tin sinh học về Venusia blomeri


Bài viết về tông bướm Asthenini này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.


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Venusia blomeri: Brief Summary ( Vietnamese )

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Venusia blomeri là một loài bướm đêm trong họ Geometridae.

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