Gwyfyn sy'n perthyn i urdd y Lepidoptera yw gwelltwyfyn mawr, sy'n enw gwrywaidd; yr enw lluosog ydy gwelltwyfynod ' mawr; yr enw Saesneg yw Large Wainscot, a'r enw gwyddonol yw Rhizedra lutosa.[1][2]
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 gwelltwyfyn mawr yn lindysyn sy'n 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.
Gwyfyn sy'n perthyn i urdd y Lepidoptera yw gwelltwyfyn mawr, sy'n enw gwrywaidd; yr enw lluosog ydy gwelltwyfynod ' mawr; yr enw Saesneg yw Large Wainscot, a'r enw gwyddonol yw Rhizedra lutosa.
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 gwelltwyfyn mawr yn lindysyn sy'n 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.
Rhizedra lutosa, the large wainscot or Isle of Wight wainscot, is a species of moth of the family Noctuidae. It is native to the Palearctic realm (Ireland to Japan including the Russian Far East and Siberia). It has been introduced into eastern North America and is spreading.[1]
The wingspan is 42–50 mm. The length of the forewings is 16–23 mm. "Forewing dull white, finely dusted with blackish in the intervals, sometimes slightly rufous-tinged; outer line represented by a row of blackish dots, often obsolete: hindwing whitish washed with grey; sometimes with an outer series of dark spots; — the ab. crassicornis Haw.has the black dusting intensified on both wings, forming, in some instances, dark horizontal streaks in the forewing; the rows of spots in both wings strongly expressed; — ab. rufescens Tutt is the red form corresponding to lutosa Hbn. sometimes with, at others without, the rows of spots; for the more dusted red form, corresponding to ab. crassicornis Haw., Tutt has used the name rufescens-suffusa. The form occurring in Japan must be separated as a subspecies griseata subsp. nov [Warren]: in the males of this (I have not seen a female) the hindwings are dark grey beyond middle with the fringe pale: the forewings also are greyer ochreous with the pale veins more distinctly defined by dark scaling.2 males in Tring Museum from Ichikishiri, Yezo, August 1890, (Dr. Fritze)".[2]
The moth flies from July to November depending on the location.
Larva bone-colour with a pinkish tinge; head light brown: feeding underground in the roots of reeds (Phragmites species).[3]
One or more of the preceding sentences incorporates text from this source, which is in the public domain: Seitz, Adalbert (1914). "R. lutosa". Die Gross-Schmetterlinge des Palaearktischen Faunengebiete: Die eulenartigen Nachtfalter. Die Gross-Schmetterlinge der Erde. Vol. 3. Stuttgart: Seitz'schen Werkes (Alfred Kernen). p. 235. Rhizedra lutosa, the large wainscot or Isle of Wight wainscot, is a species of moth of the family Noctuidae. It is native to the Palearctic realm (Ireland to Japan including the Russian Far East and Siberia). It has been introduced into eastern North America and is spreading.
Detail of the wing, showing spots
De herfst-rietboorder (Rhizedra lutosa) is een nachtvlinder uit de familie Noctuidae, de uilen. De voorvleugellengte bedraagt tussen de 16 en 23 millimeter. De soort komt verspreid over Europa voor. Hij overwintert als ei.
De herfst-rietboorder heeft soorten riet als waardplanten.
De herfst-rietboorder is in Nederland en België een algemene soort, die verspreid over het hele gebied kan worden gezien. De vlinder kent één generatie die vliegt van eind juli tot en met november.
De herfst-rietboorder (Rhizedra lutosa) is een nachtvlinder uit de familie Noctuidae, de uilen. De voorvleugellengte bedraagt tussen de 16 en 23 millimeter. De soort komt verspreid over Europa voor. Hij overwintert als ei.
Stort takrørfly (Rhizedra lutosa) er en sommerfugl som tilhører familien nattfly (Noctuidae). Den er funnet spredt nord til Sør-Trøndelag i Norge.
Et middelsstort til ganske stort (vingespenn 37 – 56 mm) nattfly, ensfarget brungul eller lyst rødlig grå. Forvingen har en bue av svarte flekker ca. 3/4 ut i vingen og ellers spredte, små, svarte flekker over hele overflaten.
Den lever på sumpete steder der det vokser takrør (Phragmites australis), som er larvenes næringsplante. Larvene utvikler seg på røttene. De voksne sommerfuglene flyr i august – oktober og kommer gjerne til lys.
Arten finnes over det meste av Europa. I Norge er den funnet spredt nord til Sør-Trøndelag.
Stort takrørfly (Rhizedra lutosa) er en sommerfugl som tilhører familien nattfly (Noctuidae). Den er funnet spredt nord til Sør-Trøndelag i Norge.
Rhizedra lutosa là một loài bướm đêm trong họ Noctuidae.[1][2]
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