UK Status
Resident. Locally common throughout the southern
half of Britain.
Montgomeryshire Status
Only a single record from the east of the county near Welshpool in 1961
until one was trapped at Middletown in 2010, where it has since been
found to be locally common.
Wingspan
:
M & F, 27-33mm.
Confusion species
Similar to Yponomeuta spp. but much larger.
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Flight time & Voltinity
(Univoltine)
Habitat
Chalk downs and light sandy soils.
Foodplant
Thistle spp.
Lifestage data
Stem feeder. Eggs laid on foodplant. Larva first feeds in flower heads,
later burrowing down into pith of the stem, several galleries can be
found in a single stem. Pupates in a cocoon in the stem. |
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