True Lover's Knot       Northern Rustic
73.339 BF2105  –  Noctuidae –  Noctuinae – Rhyacia simulans – Dotted Rustic –  (Hufnagel, 1766) Adult Macro:  CAT 1 – Distinctive species unlikely to be confused with others –       PDF Icon – click for Adult Macro Verification Guidelines
Brown –  Significant Record / Very Rare / Vagrant        orange – Migrant
Taxonomy:   Macro   >>  Noctuidae  >> Noctuinae
** Photograph required **
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
Distribution:  (Last record: 30 August 1985 at New Mills )  –  Status in Derbyshire is uncertain – Either a very rare migrant or a possible rare resident. This moth has very much a fluctuating discontinuous distribution in England. Populations can vary widely from year to year and they can be affected by immigration. The 1980 record was part of several accounts in the midlands area at the time, so possibly indicating an arrival of migrants.Harrison andSterling show a record 30th August 1985 from New Mills this appears to be the last recorded date.
Flight Period: June /  July /  –  June – July  Moth Activity: Nocturnal  Photographed: No –  Photographed By: Not Recorded
*** Last updated on 2 October 2025 by RP ***
Wingspan: 45-60mm
Forewing: 17-21mm Food Plant: Relatively unknown.
Last Recorded Year: 1985
Last Recorded By – Harrison and Sterling (1986)
Last Recorded General Area – New Mills
Selected Images:  No images


Image Gallery

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Distribution Map for Rhyacia simulans

Found 36 records
    ↳ 0 from After 2025
    ↳ 0 from 2020 - 2024
    ↳ 36 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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Bedrock Geology ** indirectly affects moth distribution by influencing the type of habitat and food plants available in an area. In turn, this may affect the types of moths that can thrive, or where they can most likely be found.


NBN Atlas UK Distribution for – Rhyacia simulans

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Note – the NBN Atlas datasets are listed in the map below and vary in their currency (uptodateness) – however, the map does give a general indication of the moth's distribution across the UK.

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Monthly Records By Year: Rhyacia simulans
( data includes both Larvae and Adult Stages )
No data returned from the database.

Monthly Counts By Year: Rhyacia simulans
( data is based on 'Adult' stage records only. )


First/Last Recorded Dates: Rhyacia simulans
Adult-only & Anything [Larvae, Pupae, Adult, Mines]

Shading shows moth presence between dates

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Recordings By Year: Rhyacia simulans
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Rhyacia simulans
AGR: 0%   |   Total % Change: 0%
Rhyacia simulans
Insufficient records/data for an AGR analysis
Years Analysed: 2000 – 2025
Rhyacia simulans
Insufficient records/data for a CUSUM analysis
Years Analysed: 2000 – 2025

Hectad (10kmx10km) Coverage: Rhyacia simulans
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Rhyacia simulans
( data includes Adult Stage only )

Flight Period chart – the grey hatched area above, which can cross one or more months, pictorially represents the best guess we have for this moth's flight periods [month/s]. The coloured lines represent the actual months seen in flight, from site observation records received between 2020-2025.

Records Behind the Map and Charts - Rhyacia simulans – 36 records available

Listed by Year - descending - scroll across to see all table columns

Site NameTetradDateCountStageSource
Starkholmes, MatlockSK35E01/08/20002Adultvc57_danes_bc_data
Starkholmes, MatlockSK35E01/08/20002Adultvc57_danes_bc_data
Beeley Moor (Flash Lane) (site not precise)SK26X08/08/19971Adultvc57_danes_bc_data
Deerlands Rd, Ashgate, ChesterfieldSK37K12/09/19931Adultvc57_danes_bc_data
Bolsover (Library)SK47Q06/09/19911Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T26/07/19881Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T26/07/19881Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T10/09/19871Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T10/09/19871Adultvc57_danes_bc_data
Wilmot St, Sawley, Long EatonSK43R11/08/19871Adultvc57_danes_bc_data
Stubbing Rd, Grangewood Farm Est, ChesterfieldSK36U22/08/19876Adultvc57_danes_bc_data
Wilmot St, Sawley, Long EatonSK43R02/08/19871Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T07/09/19861Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T10/09/19861Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T07/09/19861Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T10/09/19861Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T21/08/19861Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T31/08/19861Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T17/08/19864Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T28/08/19861Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T19/08/19861Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T23/08/19861Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T17/08/19864Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T19/08/19861Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T21/08/19861Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T23/08/19861Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T28/08/19861Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T31/08/19861Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T30/07/19861Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T30/07/19861Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F16/09/19851Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Z06/08/19831Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precise)SK26Z06/08/19831Adultvc57_danes_bc_data
Sawley TipSK43V04/09/19821Adultvc57_danes_bc_data
Somersal Herbert (site not precise)SK13H01/01/18631Adultvc57_danes_bc_data
Somersal Herbert (site not precise)SK13H01/01/18001Adultvc57_danes_bc_data

True Lover's Knot       Northern Rustic

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