Geometridae : Larentiinae
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Similar Norfolk Species
Cryptic Fern
Horisme radicaria
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Fern
Horisme tersata

([Denis & Schiffermüller], 1775) 1782 / 70.127

Norfolk status
Local.
Calcareous soil habitats.

The Fern Horisme tersata, has now been split in to two species. The new Cryptic Fern Horisme radicaria appears to have been hiding in plain sight for a number of years. Extremely hard to separate and dissection required to confirm any potential specimens of Cryptic Fern. See next species.

Recorded in 37 (50%) of 74 10k Squares.
First Recorded in 1873.
Last Recorded in 2024.
Additional Stats

< Small Waved Umber | Pretty Chalk Carpet >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10kGeneral Area
17/06/2024127TG04Cley next the Sea
22/05/2024128TF83North Creake
13/09/2023128TF74Holme NNR
08/09/2023128TF74Holme NNR
05/09/2023128TF74Holme NNR
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Fern
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Copyright © Lepidoptera UK 2024
   
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 14-18mm.
Flight: One generation June-Aug.
Foodplant:   Traveller's-joy
Red List: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 2
 Immature Adult   [Show Flight Times]

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Underlying maps using Digital Map Data © NOLA™ 2024. © Lepidoptera UK - Jim Wheeler - Norfolk Moths 2007 - 2024. Data © NOLA™ 2024
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