Ectoedemia occultella
This record describes Ectoedemia occultella (species). Recorded family: Nepticulidae. Recorded order: Lepidoptera.
Identification and Appearance

Wingspan 5 to 7 mm. The adults are quite large for a Nepticulid, and have blackish forewings with a hint of violet, and contrasting whitish fascia and eye-caps. The males have black heads, those of the female orange or yellow. The larva mines the leaves of Birch causing a rounded blotch with a darker centre. Anywhere that the host tree, birch is found. There is a single generation, with adults at large from late May to July, and mines in evidence between August and October. The larvae mine the leaves of birch, creating a distinctive mine which begins as a dark circular blotch, and is then extended into a larger pale blotch with a darker central circle. Sometimes several mines are found in one leaf. Distributed commonly throughout mainland Britain, it is however local in Ireland. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common. http://www.leafmines.co.uk/html/Lepidoptera/E.occultella.htm https://bladmineerders.nl/parasites/animalia/arthropoda/insecta/lepidoptera/monotrysia/nepticuloidea/nepticulidae/ectoedemia/ectoedemia-occultella/
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Lepidoptera
- Family
- Nepticulidae
- Genus
- Ectoedemia
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Anywhere that the host tree, birch is found.
Seasonal Activity
There is a single generation, with adults at large from late May to July, and mines in evidence between August and October.
Diet and Behavior
Life History
The larvae mine the leaves of birch, creating a distinctive mine which begins as a dark circular blotch, and is then extended into a larger pale blotch with a darker central circle. Sometimes several mines are found in one leaf.
Additional species information
Recorded status
Distributed commonly throughout mainland Britain, it is however local in Ireland. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common.
About Butterflies and Moths: the wider group
Order-level background for Lepidoptera, the group containing Ectoedemia occultella. Species-specific details appear above.
Group overview
Lepidoptera includes approximately 180,000 described species of butterflies and moths. Moths outnumber butterflies roughly 10:1. The monarch butterfly's eastern population has declined by more than 80% since the mid-1990s, and the western population by over 95% since the 1980s. The IUCN lists the migratory monarch as Vulnerable.
Ecological role of the group
Butterflies and moths are essential indicators of ecosystem health. As caterpillars, they are a primary food source for birds - a single nest of blue tit chicks requires ~10,000 caterpillars. Adult moths pollinate many night-blooming plants.
Economic and practical significance of the group
Lepidoptera are critical pollinators. In Europe, grassland butterfly species have declined by almost 50% since the early 1990s. In the UK, three-quarters of butterflies are in decline. In the U.S., five butterfly species have gone extinct since 1950, with 29 listed as endangered.
Recorded sources for this group: IUCN Red List, Xerces Society, USFWS, PNAS, WWF. Imported estimates may describe particular regions or reporting periods.
Photos of Ectoedemia occultella (10)
Frequently Asked Questions About Ectoedemia occultella
What is Ectoedemia occultella?
Ectoedemia occultella is a species in the family Nepticulidae, within the order Lepidoptera.
Where is Ectoedemia occultella found?
Habitat: Anywhere that the host tree, birch is found.
When is Ectoedemia occultella active?
Ectoedemia occultella: seasonal activity - There is a single generation, with adults at large from late May to July, and mines in evidence between August and October..
What is the life cycle of a Ectoedemia occultella?
The larvae mine the leaves of birch, creating a distinctive mine which begins as a dark circular blotch, and is then extended into a larger pale blotch with a darker central circle. Sometimes several mines are found in one leaf.
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