35.018 BF0858  –  Gelechiidae –  Anacampsinae – Hypatima rhomboidella – Black Rhomboid Grey – (Linnaeus, 1758) Adult Micro:  CAT 1 – Distinctive Species –       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Brown –  Significant Record / Very Rare / Vagrant    
Taxonomy:   Micro   >>  Gelechiidae  >> Anacampsinae
Other Name/s: Square-spot Crest, Square-spot Sober
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Scrobipalpa costella
ID pointers: A flat looking moth with elongate forewing pale greyish, mottled darker with a blackish almost triangular shape blotch on the costa half-way along leading edge of forewing.
Distribution:  (Last record: 17 August 2025 at Cromford )  –  Status unknown in the county. Very few Derbyshire records of a common moth throughout Britain. Latest record 17/8/2025 from Cromford
Flight Period: July /  August /  –  On the wing July & August. Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Steve Thorpe, Will Soar, Clive Ashton  © All Rights Reserved
*** Last updated on 20 August 2025 by TD ***
Wingspan: 15-19mm
Food Plant: Birch or Hazel twig.
Last Recorded Year: 2025
Last Recorded By – Clive Ashton
Last Recorded General Area – Cromford

IMAGES BELOW:  Waingroves, near Ripley – Steve Thorpe © – Whitwell Woods – Will Soar / Cromford (2025) Clive Ashton©

 
 

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Distribution Map for Hypatima rhomboidella

Found 14 records
    ↳ 3 from After 2025
    ↳ 2 from 2020 - 2024
    ↳ 9 from Before 2020

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.

******* Choose ONLY one at a time, of either Monad, Tetrad or Hectad Distribution - each has it's own set of data. Also, the distribution maps cover ALL recorded data. *******

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.

Land-cover * shows the variety of land-cover within the VC57 area, based on the CORINE (Coordination of Information on the Environment) forty-four thematic classes of land-cover. This will show, to a greater or lesser degree, the number and variety of moths found in different land-cover types. The UK continues to operate within the Copernicus programme, with the UK Centre for Ecology & Hydrology (UKCEH) providing Corine Land Cover (CLC) datasets for the UK and its territories.


NBN Atlas UK Distribution for – Hypatima rhomboidella

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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: Hypatima rhomboidella
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Hypatima rhomboidella
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: Hypatima rhomboidella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Hypatima rhomboidella
AGR: 0%   |   Total % Change: 0%


CUSUM Analysis: Hypatima rhomboidella
About this chart: CUSUM (Cumulative Sum) charts track long-term trends in moth populations [ filtered by 'Adult' and 'Mine' life stages ] by showing whether each year’s counts are above or below the historical average. Even small shifts build up over time, making trends of growth, stability, or decline easier to see. CUSUM highlights trend-consistency — asking: “Across the years, have moth counts mostly stayed above or below average?”
The data sample has 18 gap year/s here (zero records) between 2000 and 2025. The moth may have been present in those gap years, but no data was available. Too many year-gaps may exaggerate or skew the chart.

Counts for the current year (2025) are pro-rated based on data available up to month 7 (July) to provide a full-year equivalent.

Purple line rises = years better than average; falls = years worse than average.
Peak (best year) Trough (worst year) Growth periods Decline periods
Population peaked around 2025, reaching above average levels. The lowest population point occurred near 2024, showing a significant decline.

What the Y-axis "Cumulative Deviation" means: Cumulative Deviation shows the running total of how each year’s moth population count differs from the long-term average. i

Hectad (10kmx10km) Coverage: Hypatima rhomboidella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Hypatima rhomboidella
( 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 - Hypatima rhomboidella – 14 records available

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

TaxonSite NameTetradYearDateCountStageSource
Hypatima rhomboidellaupper cromford gardenSK25Y202517/08/20251adultvc57_irecords_extract
Hypatima rhomboidellaCromford MoorSK25X202521/08/20251adultvc57_irecords_extract
Hypatima rhomboidellaMiller's DaleSK17G202525/07/20251adultvc57_irecords_extract
Hypatima rhomboidellaCote Heath Allotments, BuxtonSK07R202420/09/20241adultvc57_irecords_extract
Hypatima rhomboidellaBirch ValeSK08I202214/08/20221adultvc57_irecords_extract
Hypatima rhomboidellaLadycroft Ave,BuxtonSK07S201207/09/20121Adultvc57_danes_bc_data
Hypatima rhomboidellaRose Av,ClowneSK57D201007/08/20101Adultvc57_danes_bc_data
Hypatima rhomboidellaFlash Lane,Beeley MoorSK26X200605/08/20061Adultvc57_danes_bc_data
Hypatima rhomboidellaMain Street, Kings NewtonSK32Y200302/10/20031Adultvc57_irecords_extract
Hypatima rhomboidellaMain St,Kings Newton,MelbourneSK32Y200302/10/20031Adultvc57_danes_bc_data
Hypatima rhomboidellaMillers Dale (Lime Kiln), TideswellSK17L200308/08/20031Adultvc57_danes_bc_data
Hypatima rhomboidellaWhitwell Wood (centre area), Whitwell, WorksopSK57J200323/08/20031Adultvc57_danes_bc_data
Hypatima rhomboidellaPriestcliffe Lees NR, TideswellSK17L200201/09/20021Adultvc57_danes_bc_data
Hypatima rhomboidellaMonks Dale,TideswellSK17H197508/08/19752Adultvc57_danes_bc_data

 
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