Biology:Essex emerald
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Short description: Species of moth
| Essex emerald | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Geometridae |
| Subfamily: | Geometrinae |
| Tribe: | Comibaenini |
| Genus: | Thetidia |
| Species: | T. smaragdaria
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| Binomial name | |
| Thetidia smaragdaria (Fabricius, 1787)
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| Synonyms | |
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The Essex emerald (Thetidia smaragdaria) is a moth of the family Geometridae. The species was first described by Johan Christian Fabricius in 1787 as Phalaena smaragdaria.[1] It is distributed throughout the Palearctic region with records from many European countries. The British subspecies Thetidia smaragdaria maritima was last seen in 1991 in Kent and is now presumed extinct.[2] In 2004 the moth was first recorded from Sweden.
The wingspan is 27–35 mm. There is one generation per year with adults on wing from mid-June to mid-July.
The larvae feed on Artemisia maritima and Achillea millefolium. Larvae can be found from July to June the following year. It overwinters in the larval stage.
Subspecies
- Thetidia smaragdaria smaragdaria
- Thetidia smaragdaria gigantea Milliere, 1874
- Thetidia smaragdaria maritima Prout, 1935
- Thetidia smaragdaria volgaria Guenee, 1858
References
External links
Wikidata ☰ Q1388249 entry
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