True Lover's Knot       Northern Rustic
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73.339 BF2105  – Dotted Rustic  – Rhyacia simulans  –  (Hufnagel, 1766)
Adult Macro:  CAT 3 – Difficult to identify – Quality set of photographs required – Difficult to identify /Very rare/Scarce (includes very scarce adventives/immigrants)/County-level first records      
PDF Icon – click for Adult Macro Verification Guidelines
Brown –  Significant Record / Very Rare / Vagrant        orange – Migrant
Taxonomy:   Macro  >>.  >>  Noctuidae  >> Noctuinae
** Photograph required **
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Distribution:  (Last record: 8 January 2000 at Starkholmes, Matlock )  –  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. Latest records from August 2000 (DaNES Historic)
General Comment: None Flight Period: June /  July –  June – July  Moth Activity: Nocturnal   – but can be disturbed during the day Photographed: No –  Photographed By: Not Recorded
*** Last updated on 13 January 2026 by TD ***
Wingspan: 45-60mm
Forewing: 17-21mm Food Plant: Relatively unknown.
Last Recorded Year: 2000
Last Recorded By – DaNES Historical records
Last Recorded General Area – Starkholmes, Matlock
Selected Images:  No images


Image Gallery

No gallery images found for this moth.


Temporal Distribution Chart
Adults: (between 1982 - 2000)
(click legend below to show/hide datasets)
This chart summarises all available historical occurrence records collated by ISO week of the year. It reflects recorder effort and sampling distribution as well as true biological activity, and should be interpreted as an indicative pattern of seasonal occurrence rather than a statistically controlled abundance or phenology model.

Distribution Map for Rhyacia simulans

Found 36 records
    ↳ from 2026+
    ↳ from 2020 - 2025
    ↳ 36 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

If the Map Layers function fails, just refresh the page and it should be OK after. Use the +- zoom on the top left, or on a tablet, use two fingers to zoom. Remember, the last layer you ticked is the one which displays the popup information - they sit on top of each other - de-select then re-select, to see the popup values.

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 )

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

Click the colour discs below to Select/De-select as Required

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 – 2026

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

Flight Periods – Indicative –vs– Recorded Data
Rhyacia simulans

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 2020-2026.

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

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

Site Name Tetrad Date Count Stage Recorder Source RecordKey
Starkholmes, Matlock SK35E 01/08/2000 2 Adult VC57 Derbyshire Recorder vc57_danes_bc_data LC000334001OJ1Y0
Starkholmes, Matlock SK35E 01/08/2000 2 Adult B.L. Statham;T. Moore vc57_danes_bc_data LC000334001WP64K
Beeley Moor (Flash Lane) (site not precise) SK26X 08/08/1997 1 Adult B.L. Statham vc57_danes_bc_data LC000334001OJ0OA
Deerlands Rd, Ashgate, Chesterfield SK37K 12/09/1993 1 Adult VC57 Derbyshire Recorder vc57_danes_bc_data LC000334001OIXNC
Bolsover (Library) SK47Q 06/09/1991 1 Adult J. Culpin vc57_danes_bc_data LC000334001OHLEG
Back Lane,Glapwell SK46T 26/07/1988 1 Adult J. Culpin vc57_danes_bc_data LC000334001OIEGW
Back Lane, Glapwell SK46T 26/07/1988 1 Adult J. Culpin vc57_danes_bc_data LC000334001WOQBP
Back Lane,Glapwell SK46T 10/09/1987 1 Adult J. Culpin vc57_danes_bc_data LC000334001OHZY2
Back Lane, Glapwell SK46T 10/09/1987 1 Adult J. Culpin vc57_danes_bc_data LC000334001WOQ7B
Stubbing Rd, Grangewood Farm Est, Chesterfield SK36U 22/08/1987 6 Adult VC57 Derbyshire Recorder vc57_danes_bc_data LC000334001OHJXZ
Wilmot St, Sawley, Long Eaton SK43R 11/08/1987 1 Adult A. Braddock vc57_danes_bc_data LC000334001OHJWK
Wilmot St, Sawley, Long Eaton SK43R 02/08/1987 1 Adult A. Braddock vc57_danes_bc_data LC000334001OIT3F
Back Lane,Glapwell SK46T 10/09/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001OHZLL
Back Lane, Glapwell SK46T 10/09/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001WQ1AS
Back Lane,Glapwell SK46T 07/09/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001OHZLC
Back Lane, Glapwell SK46T 07/09/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001WQ1AR
Back Lane,Glapwell SK46T 31/08/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001OHJLJ
Back Lane, Glapwell SK46T 31/08/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001WOS1G
Back Lane,Glapwell SK46T 28/08/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001OIB0T
Back Lane, Glapwell SK46T 28/08/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001WOS1D
Back Lane,Glapwell SK46T 23/08/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001OISF4
Back Lane, Glapwell SK46T 23/08/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001WOS1A
Back Lane,Glapwell SK46T 21/08/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001OHJKC
Back Lane, Glapwell SK46T 21/08/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001WOS18
Back Lane,Glapwell SK46T 19/08/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001OISE2
Back Lane, Glapwell SK46T 19/08/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001WOS17
Back Lane,Glapwell SK46T 17/08/1986 4 Adult J. Culpin vc57_danes_bc_data LC000334001OIB05
Back Lane, Glapwell SK46T 17/08/1986 4 Adult J. Culpin vc57_danes_bc_data LC000334001WOS16
Back Lane,Glapwell SK46T 30/07/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001OJHX5
Back Lane, Glapwell SK46T 30/07/1986 1 Adult J. Culpin vc57_danes_bc_data LC000334001WQ1AE
Shardlow Hall, Shardlow, Long Eaton SK43F 16/09/1985 1 Adult VC57 Derbyshire Recorder vc57_danes_bc_data LC000334001OIRQV
Beeley Moor, Beeley (site not precies) SK26Z 06/08/1983 1 Adult VC57 Derbyshire Recorder vc57_danes_bc_data LC000334001OHIKJ
Beeley Moor, Beeley (site not precise) SK26Z 06/08/1983 1 Adult B. Elliott vc57_danes_bc_data LC000334001WOPJB
Sawley Tip SK43V 04/09/1982 1 Adult VC57 Derbyshire Recorder vc57_danes_bc_data LC000334001OIPH9
Somersal Herbert (site not precise) SK13H 01/01/1863 1 Adult E. Brown vc57_danes_bc_data LC000334001WPU2O
Somersal Herbert (site not precise) SK13H 01/01/1800 1 Adult VC57 Derbyshire Recorder vc57_danes_bc_data LC000334001OLFF8

True Lover's Knot       Northern Rustic

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