Epermenia falciformis | |
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Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Lepidoptera |
Family: | Epermeniidae |
Genus: | Epermenia |
Species: | E. falciformis |
Binomial name | |
Epermenia falciformis | |
Synonyms | |
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Epermenia falciformis, also known as the large lance-wing, is a moth of the family Epermeniidae found in Europe. It was first described by Adrian Hardy Haworth in 1828.
The wingspan is 9–11 mm. Forewings pale ochreous; costa fuscous on anterior half; an indistinct fuscous streak from base of dorsum to beneath 1/3 of costa; a rather dark ochreous-fuscous fascia from middle of costa obliquely inwards, dilated on costa, emitting from dilation a streak to tornus; an inwardly oblique dark ochreous-fuscous spot on costa before apex; second discal stigma dark fuscous; two black dorsal scale-teeth; dark line of cilia subfalcate at apex. Hindwings dark grey. Larvae yellow-green; dorsal line darker head yellowish-brown. [2]
Adults are on wing from June to July and again from August to September in two generations per year. [3]
Ova are laid on angelica ( Angelica sylvestris ) and ground-elder ( Aegopodium podagraria ) in June and July, and in the Autumn. [4] Larvae of the first generation feed in May and June in spun leaflets of their host plant, while larvae of the second generation mine a stem immediately below an umbel, causing it to droop and wither. When full grown, larvae leave via a small hole just before the junction above the main stem. [4] Pupation takes place in an open network cocoon amongst detritus on the ground. [5] The threads spun by the larvae are covered with minute drops of a sticky secretion.
It is found in Austria, Belgium, the Czech Republic, Denmark, France, Fennoscandia, Germany, Great Britain and Ireland, Latvia, the Netherlands and Slovakia.