Geometridae : Larentiinae
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Photo © David Hunt,  Harpenden, Hertfordshire (09/23)

Similar Herts & Middlesex Species
Lesser Treble-bar
Aplocera efformata
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Treble-bar
Aplocera plagiata

(Linnaeus, 1758) 1867 / 70.192

General comments:
Widespread but local resident.

Beginners should be aware of the potential to confuse this species with the Lesser Treble-bar. Both species are widespread, but the Treble-bar is found in far more sites than the Lesser Treble-bar in our two counties, though both appear to have similar habitat requirements and identical larval foodplants. Both species seem to be absent from a chunk of north-east Herts and the eastern side of Middlesex.

Recorded in 33 (80%) of 41 10k Squares.
First Recorded in 1887.
Last Recorded in 2023.
Additional Stats

< Grey Pug  |  Lesser Treble-bar >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
02/10/2023120TL22 - Stevenage
01/10/2023120TL42 - Bishop's Stortford (N)
26/09/2023120TL22 - Stevenage
25/09/2023120TL22 - Stevenage
24/09/2023120TL22 - Stevenage
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Treble-bar
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VC20 VC21 VC21 VC20
Click Map for Details
Forewing: 19-22mm.
Flight: Two generations May-June. Aug-Sept.
Foodplant:   St John's-worts
Red List: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 2
 Immature Adult   [Show Flight Weeks]
© hertsmiddxmoths.uk 2024 NOLA®; Database using MapMate® Digital Maps © Bartholomew 2010. Design © Jim Wheeler 2024
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