Noctuidae : Xyleninae
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Photo © Ben Sale,  Stevenage, Hertfordshire 19/07/21) - Genitalia Dissected

Similar Herts & Middlesex Species
Common Rustic
Mesapamea secalis
Small Clouded Brindle
Apamea unanimis
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Lesser Common Rustic
Mesapamea didyma

(Esper, 1788) 2343a / 73.170

General comments:
Widespread resident.

All examples require genitalia dissection for correct naming - and both species often fly together. Skinner (1984; 1998) contends that all-black examples with a prominent white discal spot (his Figure 5 on Plate 38) 'are invariably M. didyma' but I have material that proves him wrong. Available data suggests that Lesser Common Rustic is considerably less numerically abundant than Common Rustic in this county.

Determination by Genitalia Examination Required

Recorded in 34 (83%) of 41 10k Squares.
First Recorded in 1975.
Last Recorded in 2023.
Additional Stats

< Common Rustic  |  Rosy Minor >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
15/08/2023121TQ17 - Brentford / Hounslow / Richmond
14/08/2023120TL42 - Bishop's Stortford (N)
10/08/2023521TQ17 - Brentford / Hounslow / Richmond
09/08/2023221TQ29 - Barnet / Finchley
04/08/2023421TQ29 - Barnet / Finchley
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Lesser Common Rustic
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VC20 VC21 VC21 VC20
Click Map for Details
Forewing: 11-16mm.
Flight: One generation July-Aug.
Foodplant:   Grasses
Red List: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 4
 Immature Adult   [Show Flight Weeks]
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