Noctuidae : Xyleninae
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Lesser Common Rustic
Mesapamea didyma

(Esper, 1788) 2343a / 73.170
Photo © Charles Fletcher, 8 Aug 2012,  SE323733Hutton Conyers, VC65 - (gen. det.)

Similar Yorkshire Species
Common Rustic
Mesapamea secalis
Small Clouded Brindle
Apamea unanimis
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Express Record Lesser Common Rustic

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Yorkshire Status: "Rare and local resident, under-recorded as majority undetermined."

Sutton & Beaumont, 1989: Recognised as British in February 1984, some specimens were soon found in Yorkshire by H. E. Beaumont in July of the same year (Harrison & Sterling, 1986). Although there are as yet few confirmed records it is thought likely that this species is sympatric with its congener over most, if not all of its range. Some authorities are still not convinced by the separation and refuse to distinguish the two. The name of this species has just been revised from secalella (Remm) to didyma (Esper) (Lempke, 1988).

Beaumont, 2002: VC61. South Cave, Julyy 1992 gen. det. HEB (DBC); Rudston, presence confirmed by gen. det. (ASE). VC62. Hutton Rudby, 23.6.1990 conf HEB (GWF). NEW VICE-COUNTY RECORD. VC63. Rossington, presence confirmed (RIH); Wintersett Country Park, four 21.7-3.8.1998 gen. det. HEB (PSm, PM et. al.). VC64. Malham Tarn, regularly during August 1991-1998 (DB).

Argus 58, 2009: VC65. Keld, 24.7.2009 (CHF, JCW, DB et al.). NEW VICE-COUNTY RECORD.

2012 (CHF): See the comments under Common Rustic. We now have confirmed records of both species from all five vice-counties.

Determination by Genitalia Examination (gen. det.) Required

Recorded in 66 (33%) of 200 10k Squares.
First Recorded in 1978.
Last Recorded in 2023.
Additional Stats

< Common Rustic agg.  |  Rosy Minor >
Forewing: 11-16mm
Flight: July - August
Foodplant:   Grasses
Red List Status: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 4
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
16/08/2023163SE11 - Huddersfield
10/08/2023164SD66 - High Bentham
04/08/2023363SE12 - Elland / Brighouse / Low Moor
28/07/2023164SE24 - Bramhope / Otley
27/07/2023163SK69 - New Rossington / Austerfield
  Immature   Adult   [Show Flight Weeks]
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
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