Geometridae : Larentiinae
  Prev | Next  
Photo © Tuck Mr N,  05/08/2017 - Thetford Forest CC Site

Similar Norfolk Species
Treble-bar
Aplocera plagiata
Upload a Photo
 
Lesser Treble-bar
Aplocera efformata

(Guenée, 1857) 1868 / 70.193

Norfolk status
Much rarer than Treble-bar.

Lesser Treble-bar is usually slightly smaller, with less intense dark cross-bands.
The most reliable way to separate the two species is by looking at the tip of the abdomen.

Treble-bar Male has a straighter, more pointed abdomen tip.
Female showing a distinctive tubular shape to the terminal segment of the abdomen.

Lesser Treble-bar Male abdomen is shorter and blunter, with slightly curved claspers.
Female abdomen blunt. This is less obvious and care should be taken.

(see abdomen comparison diagram)

Please retain / photograph all possible Lesser Treble-bar specimens.

Retained Specimen / Photograph will be Required.

Recorded in 21 (28%) of 74 10k Squares.
First Recorded in 1940.
Last Recorded in 2023.
Additional Stats

< Treble-bar  |  Streak >

Determination
Treble-bar and Lesser Treble-bar abdomen comparison - J. Wheeler
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10kGeneral Area
22/08/2023128TF62King's Lynn
26/06/2023+28TL79Cranwich Heath
03/09/2022128TF51Walpole Highway
29/08/2022127TG20Poringland
08/06/2022127TG20Poringland
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Lesser Treble-bar
We need your records!
Do you have records of Lesser Treble-bar?
Put your own dot on the map!

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]

Data Policy | Cookies Policy
  
Underlying maps using Digital Map Data © NOLA™ 2024. © Lepidoptera UK - Jim Wheeler - Norfolk Moths 2007 - 2024. Data © NOLA™ 2024
This site requires necessary cookies to function correctly. We'd also like to set Google analytics cookies that help us make improvements by measuring how you use the site. These will be set only if you accept all cookies. Necessary cookies enable core functionality such as security, network management, and accessibility. You may disable these by changing your browser settings, but this will affect how the website functions. Cookies Policy