Zygaenidae : Zygaeninae
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Photo © Tristan Bantock

Immature stages

Similar Norfolk Species
Narrow-bordered Five-spot Burnet
Zygaena lonicerae
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Five-spot Burnet
Zygaena trifolii

(Esper, 1783) 170 / 54.010

Norfolk status
Local, mainly coastal on damp grassland, marshes, boggy heath and dunes.

Difficult to distinguish from the more common Narrow-bordered Five-spot Burnet (Z. lonicerae) and extremely difficult to identify as adults either in the field or under the microscope.
The population itself should be studied with foodplant and flight times noted if possible. It should then be apparent as to the identity of the population. Even then more than one species may be present so extra care should be taken.

Z. trifolii usually shows median pairs of spots merged, apex of wing more rounded than seen in lonicerae with black terminal band usually broader. Yellow spotted forms are rare.

Restricted to a hand full of locations. Surveys taken in the County have only found colonies of Five-spot (trifolii) at the Broads and Coastal sites, notably Horsey area. All other inland colonies turned out to be Narrow-bordered (lonicerae)

Best recorded as larvae where the comparatively short hairs on the caterpillars are characteristic.

Please record as the aggregate if unsure.



Verification Grade Comment: Difficult to identify as adults either in the field or under the microscope

Determination by Genitalia Examination (gen. det.) Required

Recorded in 25 (34%) of 74 10k Squares.
First Recorded in 1834.
Last Recorded in 2023.
Additional Stats

< Narrow-bordered Five-spot Burnet | Five-spot Burnet agg. >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10kGeneral Area
29/06/2023127TG14Sheringham / Beeston
29/06/2022127TG31Bure Marshes NNR
25/08/2021128TF74Holme NNR
10/08/2021528TF74Holme NNR
23/07/2021128TF72Flitcham
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Five-spot Burnet
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 14-19mm.
Flight: One generation. June-Aug.
Foodplant:   Greater and Common Bird's-foot-trefoil
Red List: Least Concern (LC)
GB Status: Common
Former Status: Local
Verification Grade:  Adult: 4
 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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