Noctuidae : Xyleninae
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Lesser Common Rustic
Mesapamea didyma

(Esper, 1788) 2343a / 73.170
Photo © Alan Draper,  SE361509Spofforth, VC64

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 62 (31%) of 200 10k Squares.
First Recorded in 1978.
Last Recorded in 2022.
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
09/08/2022162NZ61 - Guisborough
03/08/2022264SE26 - Ripley / Summerbridge
31/07/2022163SK69 - New Rossington / Austerfield
28/07/2022265SD88 - Hawes
24/07/2022263SK69 - New Rossington / Austerfield
  Immature   Adult
Show Details | 1990 to 2022 | 2000 to 2022 | Graph Key
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