Species: Essex Emerald (Thetidia smaragdaria)
Norwegian name: Smaragdbladmåler
Host plants: Malurt (Artemisia absinthium), Malurtslekta (Artemisia), Reinfannslekta (Tanacetum), Svineblomslekta (Senecio), Tansy (Tanacetum vulgare), Yarrow (Achillea millefolium)
Norwegian Red List (2021): Critically Endangered
Systematics :
| Kingdom | Animals (Animalia) | ||||||||
| Phylum | Articulate animals (Arthropoda) | ||||||||
| Klasse | Insects (Insecta) | ||||||||
| Order | Moths and butterflies (Lepidoptera) | ||||||||
| Group | Macro-moths («Macro-heterocera») | ||||||||
| Family | Geometrid moths (Geometridae) | ||||||||
| Subfamily | Geometrinae | ||||||||
| Genus | Thetidia | ||||||||
| Species | Essex Emerald (Thetidia smaragdaria) | ||||||||
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