| 16.015 ~ 0437 ~ Swammerdamia caesiella ~ Birch Ermine | ||
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UK Status Resident. Widely distributed and often common throughout the British Isles. Montgomeryshire Status First found in 2014 in the north of the county in the Lake Vyrnwy area. Wingspan : M & F 9-13mm. Confusion species Paraswammerdamia lutarea. |
Flight time & Voltinity
(Bivoltine)  Habitat Heathland and open woodland. Foodplant Birch. Lifestage data Web forming. Eggs on foodplant. Larva lives in a web, feeding on top of leaf. Pupates in dense white cocoon on or near ground. |
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| Montgomeryshire photos | ||
 Photo by DB, 24th June 2014, Lake Vyrnwy |
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