Chrysodeixis eriosoma

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Green garden looper
Chrysodeixis eriosoma.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Genus: Chrysodeixis
Species:
C. eriosoma
Binomial name
Chrysodeixis eriosoma
(Doubleday, 1843)
Synonyms

Plusia eriosomaDoubleday, 1843

Chrysodeixis eriosoma, the green garden looper, known in New Zealand as the Silver Y, [1] is a moth of the family Noctuidae. Mostly cosmopolitan in distribution, it is a pest in Japan, China, India, Sri Lanka, the Malay Peninsula and Australasia. [2] It is present in Hawaii and recorded as an incursion in mainland North America and Russia. [3] It is morphologically identical to Chrysodeixis chalcites and the two may be sibling species.

Contents

Description

Adult

Dorsal view Chrysodeixis eriosoma dorsal.jpg
Dorsal view
Ventral view Chrysodeixis eriosoma ventral.jpg
Ventral view

Chrysodeixis eriosoma has a wingspan of 42 mm. [2] Some specimens are much darker than others. [2]

Chrysodeixis eriosoma differs from C. signata in the head, thorax, and forewing having a reddish tinge; abdomen with the lateral and anal tufts often black in the male. Forewing with much more gilding on the basal, medial, and outer areas; the antemedial line more oblique, the postmedial more oblique and sinuous; the Y mark large, prominent, and golden, the arms often filled in with golden and occasionally joined to the tail. [2]

Chrysodeixis eriosoma and Chrysodeixis chalcites moths cannot be separated morphologically, and they may be sibling species. However, they may be distinguished based on DNA sequencing, pheromones, or geographic origin as C. chalcites is found in the Palearctic and C. eriosoma in the tropical and subtropical regions of eastern Asia and the Pacific islands as well as in Australia and New Zealand. The species is abundant in agricultural areas and open habitats in lowlands and foothills but has been found at altitudes up to 2600m [4] The literature referring to C. chalcites in southern and eastern Asia or Oceania may actually refer to C. eriosoma. [5]

Larva

The larvae are green with a number of faint longitudinal dorsal and lateral white lines. They also sometimes have black dots on their sides. As for most other plusiine, they lack two pair of prolegs and thus move in a looper fashion, which is somewhat similar to caterpillars in the family Geometridae. They grow to a length of about 4 cm. [6] They are polyphagous and have been reported to feed on over sixty species of plants. [2] [7]

Life cycle

Duration of the pupal stage varies from a few days in summer to about a month in winter. Adults live from ten to twelve days. [6]

Pest status

C.eriosoma is a pest of crops in the Solanaceae, Leguminosae, Cruciferae, and Malvaceae. [4]

Related Research Articles

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<i>Helicoverpa armigera</i> Species of moth

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<i>Thysanoplusia orichalcea</i> Species of moth

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<i>Mythimna separata</i> Species of moth

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<i>Anomis sabulifera</i> Species of moth

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Eudocima phalonia, the common fruit-piercing moth, is a fruit piercing moth of the family Erebidae. The species was first described by Carl Linnaeus in his 1763 Centuria Insectorum. It is found in large parts of the tropics, mainly in Asia, Africa and Australia but introduced into other areas such as Hawaii, New Zealand and the Society Islands. It is one of major fruit pests in the world.

<i>Parasa lepida</i> Species of moth

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<i>Amyna axis</i> Species of moth

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<i>Penicillaria jocosatrix</i> Species of moth

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<i>Leucinodes orbonalis</i> Species of moth

Leucinodes orbonalis, the eggplant fruit and shoot borer or brinjal fruit and shoot borer, is a moth species in the genus Leucinodes described by Achille Guenée in 1854. Its native distribution is in the tropical and subtropical parts of Australia and Asia, where it is recorded from Pakistan, Nepal, India, including the Andaman Islands, Sri Lanka, Bangladesh, Myanmar, Laos, Cambodia, Vietnam, Thailand, China, Taiwan, Japan, Malaysia, Singapore, Brunei, the Philippines, and Indonesia (Java). It has also been intercepted from fruit imports in the U.S.A., the Netherlands, Denmark and Great Britain, where it was also reported from the wild. A taxonomic revision of the Leucinodes species of Sub-Saharan Africa concluded that L. orbonalis is currently not present in Africa, and that previous records of this species were misidentifications of previously undescribed species.

<i>Tirathaba rufivena</i> Worms that eat oil-/coconut-palm flowers

Tirathaba rufivena, the coconut spike moth, greater coconut spike moth or oil palm bunch moth, is a moth of the family Pyralidae. It is found from south-east Asia to the Pacific islands, including Malaysia, the Cook Islands, the Philippines and the tropical region of Queensland, Australia. They are considered as a minor pest.

<i>Biston suppressaria</i> Species of insect

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<i>Copidosoma</i> Genus of wasps

Copidosoma is a genus of chalcid wasps, which are parasitoids of Lepidoptera. The wasps are polyembryonic, depositing one or two eggs into their host which then develop into multiple offspring and have a soldier caste and a reproductive caste.

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References

  1. Manaaki Whenua Identification Tools: What is this bug? Silver Y (Viewed 30 Jul. 2023)
  2. 1 2 3 4 5 Hampson, G. F. (1894). The Fauna of British India, Including Ceylon and Burma: Moths Volume II. Taylor and Francis via Biodiversity Heritage Library.
  3. CABI Invasive Species Compendium Datasheet: Chrysodeixis eriosoma (green looper caterpillar) (Viewed 14 Nov. 2015)
  4. 1 2 "::The Moths of Borneo::".
  5. "The Food and Environment Research Agency – Rapid Pest Risk Analysis for Chrysodeixis chalcites".
  6. 1 2 Herbison-Evans, Don & Crossley, Stella (3 June 2018). "Chrysodeixis eriosoma (Doubleday, 1843) Green Looper". Australian Caterpillars and their Butterflies and Moths. Retrieved 13 January 2019.
  7. "Plantwise Knowledge Bank - Plantwise Technical Factsheet - green looper caterpillar (Chrysodeixis eriosoma)".