Geometridae : Larentiinae
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Photo © Neil Sherman,  The Lot, France. June 2005

Similar Suffolk Species
Aplocera plagiata
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Lesser Treble-bar
Aplocera efformata

(Guenée, 1857) 1868 / 70.193

Morley's Final Catalogue: Doubtless mixed with the last species (NB. ? Gorleston 24 June 1926. - CM.)

Recent Suffolk Status: Scarce, with only a few recent records. Possibly overlooked.

Life history: Double-brooded. Larvae of Treble-bar (or Lesser Treble-bar) have been found in Suffolk in the autumn/winter on various St John's Wort seedheads.

Identification: The best way to distinguish Treble-bar from Lesser Treble-bar is to look at the claspers at the end of the abdomen on males. In Treble-bar these are long and quite pointed whilst on Lesser Treble-bar these are shorter and blunter. The angle of the inner bar is quite variable and open to interpretation on both species so isn't a reliable feature to use.

Habitat: Grasslands, woodland rides, gardens, hedgerows, scrub areas.

Retained Specimen / Photograph will be Required.

Recorded in 13 (22%) of 58 10k Squares.
First Recorded in 1926.
Last Recorded in 2022.
Additional Stats

< Treble-bar | Streak >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
12/09/2022126TL78 - Brandon/Lakenheath
13/05/2018125TM33 - Bawdsey/Felixstowe
22/06/2017225TM23 - Felixstowe/Landguard Point
22/06/2017225TM23 - Felixstowe/Landguard Point
22/09/2011126TL76 - Kentford/Dalham
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Lesser Treble-bar
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Copyright © Lepidoptera UK 2024
Click Map for Details

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 16-19mm.
Flight: Two generations May-June. Aug-Sept.
Foodplant:   St John's-worts
Red List: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 3
 Immature Adult   [Show Flight Times]
Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ - Suffolk 2024. © James Wheeler - Norfolk Moths 2007 - 2024. Data © NOLA™ - Suffolk 2024
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