Geometridae : Larentiinae
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Photo © Linda Simkins,  Blakeney

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 33 (48%) of 69 10k Squares.
First Recorded in 1873.
Last Recorded in 2020.
Additional Stats

< Small Waved Umber  |  Cryptic Fern >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
13/09/2020128TF74 - Holme/Titchwell
04/09/2020128TF74 - Holme/Titchwell
01/09/2020128TF74 - Holme/Titchwell
31/08/2020128TF74 - Holme/Titchwell
24/08/2020228TF74 - Holme/Titchwell
 Show Details | 1990 to 2020 | 2000 to 2020 | Graph Key
Express Record Fern
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Copyright © Jim Wheeler 2021
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 14-18mm.
Flight: One generation June-Aug.
Foodplant:   Traveller's-joy
Nat Status: Common
Verification Grade:  Adult: 2
 Immature Adult
Further info: Horisme tersata
 
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ 2021. © James Wheeler - Norfolk Moths 2007 - 2021. Data © NOLA™ 2021
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