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Gwyfyn sy'n perthyn i urdd y Lepidoptera yw gwyfyn llwyd cotwm, sy'n enw gwrywaidd; yr enw lluosog ydy gwyfynod llwyd cotwm; yr enw Saesneg yw Angled Gem, a'r enw gwyddonol yw Anomis sabulifera.[1][2]
Gellir ei ganfod yn Ethiopia a'r Dwyrain Canol, Moroco ac Affganistan. Ceir sawl cenhedlaeth pob blwyddyn.
Mae'r siani flewog yn bwyta planhigyn Malvaceae a Tiliaceae a gwelwyd hi hefyd yn bwyta Althaea a Hibiscus tiliaceus.
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 gwyfyn llwyd cotwm 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 gwyfyn llwyd cotwm, sy'n enw gwrywaidd; yr enw lluosog ydy gwyfynod llwyd cotwm; yr enw Saesneg yw Angled Gem, a'r enw gwyddonol yw Anomis sabulifera.
Gellir ei ganfod yn Ethiopia a'r Dwyrain Canol, Moroco ac Affganistan. Ceir sawl cenhedlaeth pob blwyddyn.
Mae'r siani flewog yn bwyta planhigyn Malvaceae a Tiliaceae a gwelwyd hi hefyd yn bwyta Althaea a Hibiscus tiliaceus.
Anomis sabulifera, the angled gem or jute semi-looper, is a moth of the family Erebidae. The species was first described by Achille Guenée in 1852. It has a Paleotropical distribution and ranges from Africa eastwards to India, Sri Lanka and Australia. A single record was found from Britain.[1]
Its wingspan is about 32–38 mm. The antennae of the male is ciliated. Antemedial line of forewings bent outwards between vein 1 and inner margin. The postmedial line incurved beyond the cell. It has diffused black on the antemedial line of forewings and between postmedial and sub-marginal lines. A small orbicular spot usually present and two specks conjoined into a reniform spot.[2]
There are multiple generations per year. The larvae mainly feed on species of the families Malvaceae and Tiliaceae. Recorded food plants include Althaea spp., Abelmoschus esculentus, Hibiscus tiliaceus, Commersonia bartramia, Corchorus capsularis Corchorus olitorius, Gossypium spp., Grewia occidentalis, and Triumfetta rhomboidea.[3]
It is a major pest of jute throughout the world.[4] Fruits, growing seedlings, leaves and seeds are mostly affected by the caterpillars and adults as well. They externally feed on the plant parts leading to dieback, chlorosis and reduction of harvest. The whole plant may result dwarf after excessive infection. The first attack symptoms can be seen in the shoot apex region.
Biological controlling methods are extensively used. No indication of chemical usage reported in the fields. In early times, predatory birds such as cuckoos of the family Cuculidae are used, but not known today. The spores of Bacillus thuringiensis and Beauveria bassiana are known to effective. Beauveria bassiana should mix with potato dextrose broth and amino acid solutions prior to in usage. In Bangladesh, inoculation with nuclear polyhedrosis virus controlled 80 percent of the attack.[5]
Anomis sabulifera, the angled gem or jute semi-looper, is a moth of the family Erebidae. The species was first described by Achille Guenée in 1852. It has a Paleotropical distribution and ranges from Africa eastwards to India, Sri Lanka and Australia. A single record was found from Britain.
Anomis sabulifera is een vlinder uit de familie spinneruilen (Erebidae). De wetenschappelijke naam is voor het eerst geldig gepubliceerd in 1852 door Guenée.
De soort komt voor in tropisch Afrika.
Bronnen, noten en/of referenties
Anomis sabulifera é uma mariposa da família Erebidae. Pode ser encontrada desde a África, ao leste a Índia, Sri Lanka e Austrália. Houve apenas um registro na Grã-Bretanha.[1]
Existem várias gerações por ano. As larvas se alimentam principalmente de espécies das famílias Malvaceae e Tiliaceae. As plantas alimentares registadas incluem Abelmoschus esculentus, Hibiscus tiliaceus, Commersonia bartramia, Corchorus capsularis, Corchorus olitorius, Grewia occidentalis e Triumfetta rhomboidea.[2]
Anomis sabulifera é uma mariposa da família Erebidae. Pode ser encontrada desde a África, ao leste a Índia, Sri Lanka e Austrália. Houve apenas um registro na Grã-Bretanha.
Anomis sabulifera[1] là một loài bướm đêm thuộc họ Erebidae.
Có nhiều lứa trong năm. Ấu trùng ăn chủ yếu là các loài Malvaceae và Tiliaceae.
Phương tiện liên quan tới Anomis sabulifera tại Wikimedia Commons
Anomis sabulifera là một loài bướm đêm thuộc họ Erebidae.
Có nhiều lứa trong năm. Ấu trùng ăn chủ yếu là các loài Malvaceae và Tiliaceae.
