Noctuidae : Xyleninae
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Large Wainscot
Rhizedra lutosa

(Hübner, 1803) 2375 / 73.134
Photo © David Walsh,  Foston Grange Farm, VC62 06/09/2022

Similar Yorkshire Species
Bulrush Wainscot
Nonagria typhae
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Express Record Large Wainscot

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Yorkshire Status: Common resident.

In 1883 Porritt wrote "not uncommon in the eastern division of the county, but a specimen which I have in my cabinet, which I took from a gas lamp in Huddersfield, is the only record of its occurrence in the south West Riding". Since then, like many reed-feeding species, it seems to have increased in numbers and in range, and is now seen all over the county except for some upland areas. Whilst the biggest numbers appear amongst reeds, it does have a tendency to wander and is not uncommon in gardens. Most of these wanderers are said to be females. It seems to be doing well in Yorkshire though numbers seem to fluctuate a lot from year to year. The largest numbers have come from Spurn, for example 91 on 11/10/1971. It is said to like the drier parts of reed beds. The main confusion species is said to be Bulrush Wainscot, though one pitfall is that Large Wainscot is very variable in size and at some sites, small forms commonly occur (usually males). These can be confused with several other Wainscots and can fool the unwary, though the late flight time is a good pointer towards Large Wainscot.

Sutton & Beaumont, 1989: Sparsely recorded across the County but does not often appear to be common. Wanderers are sometimes found well away from common reed, on which the larva feeds.

Recorded in 115 (58%) of 200 10k Squares.
First Recorded in 1879.
Last Recorded in 2023.
Additional Stats

< Scarce Arches  |  Bulrush Wainscot >
Forewing: 16-23mm
Flight: August - October
Foodplant:   Common Reed
Red List Status: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 1
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
17/11/2023164SE42 - Castleford / Pontefract
10/11/2023164SE42 - Castleford / Pontefract
03/11/2023261TA04 - Beverley (N)
03/11/2023261TA07 - Hunmanby
01/11/2023161SE92 - Swanland
  Immature   Adult   [Show Flight Weeks]
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
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