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Round-winged Muslin
Thumatha senex (H?bner, 1808)
Erebidae: Arctiinae
2035 / 72.037
Photo © Andy Nunn,  North Cliffe Wood VC 61

Similar Yorkshire Species
Muslin Footman
Nudaria mundana
Forewing: 10-11mm
Flight: June - August
Foodplant:   Lichens and mosses
Red List: Least Concern (LC)
GB Status: Common
Former Status: Local
Verification Grade:  Adult: 2

Yorkshire Status: Scarce and very local resident.

Sutton & Beaumont, 1989: Appears to have spread considerably since the last list (YNU, 1970). However it has been suggested (PQW pers. comm.) that it is being confused with N. mundana (Linnaeus), since many sites are not marsh or fenland, the typical habitat for this species.

Current status (CHF, 2011): Still not uncommon at Spurn and in other areas such as north of Ripon and Askham Bog, but numbers have gradually decreased. The only Footman to be declining.

Recorded in 37 (19%) of 200 10k Squares.
First Recorded in 1883.
Last Recorded in 2023.

Latest 5 Records
Date#VC10k Area
10/08/2023161TA41 - Kilnsea / Spurn Head
01/08/2023161TA41 - Kilnsea / Spurn Head
24/07/2023161TA41 - Kilnsea / Spurn Head
20/07/20232264SE54 - York (S/W)
19/07/2023261TA41 - Kilnsea / Spurn Head
Further info: Thumatha senex
UK Moths
Mothdissection UK Yorkshire Moths (Full)
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