Yorkshire Status: Fairly common and local resident.
Some records are of larval cases.
Sutton & Beaumont, 1989: There are scattered records from a number of localities in vice-counties 61 to 64, in the south of VC63 cases are found commonly both on crack willow and sallow.
Argus 47, 2001-2004: VC65. Hutton Mill Deep, larval case on willow 2001 (CHF). NEW VICE-COUNTY RECORD.
Determination by Genitalia Examination (gen. det.) Required
Recorded in 42 (21%) of 200 10k Squares. First Recorded in 1859. Last Recorded in 2023. Additional Stats
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