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) 70.193/1868
Norfolk status
Much rarer than Treble-bar (A.plagiata).

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 from below.

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 15 (22%) of 69 10k Squares.
First Recorded in 1940.
Last Recorded in 2017.
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#VC10k Area
05/08/2017128TL89 - Bodney/Lynford
03/09/2013228TL79 - Methwold/Foulden
23/08/2012128TF63 - Snettisham/Dersingham
16/05/2011127TG10 - Wymondham/Cringleford
01/09/2010127TG20 - Norwich
Show Details | 1990 to 2018 | 2000 to 2018 |
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 © Jim Wheeler 2019

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 16-19mm.
Season: Two generations May-June. Aug-Sept.
Foodplant:   St John's-worts
Nat Status: Common
Verification Grade:  Adult: 3
 Immature Adult
Share this page

 

Photos Required | T-shirts | Yahoo Group | Data Policy
    
Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ 2019. © James Wheeler - Norfolk Moths 2007 - 2019. Data © NOLA™ 2019