– click for Adult Macro Verification Guidelines
– Generally Common / Widespread 
– Migrant
– easy to identify, generally distinctive and unlikely to be confused with other species.ID pointers: Fairly diagnostic
Distribution: Recorded in the UK mostly as a migrant species, with only a handful of records prior to 1991. Since then, it has become more frequent in the southern and south east counties of England, with more frequent arrivals in sufficient numbers to breed.
A new species for Derbyshire in 2019, when one was trapped in a garden moth trap at Sandiacre by Ian Viles. The 2nd county record was 19th July 2022, when Steve Thorpe trapped one in his Breaston garden. Another has been trapped on 20th July & another on 29th July 2022 in an Allestree garden by Stephen Plant. This species is now a new colonist into the county and according to the data Sandiacre seems to hold the largest population. The species appears to be well established along the southern-central west side of the county.
*** Last updated on 2 October 2025 by RP ***
Forewing: 10-14mm
Blue-coded] moths are not stored on the website at this current time. Selected Images: Sandiacre, Derbyshire – Ian Viles © / Breaston, Derbyshire – Steve Thorpe ©
Image Gallery
Distribution Map for Cryphia algae
Found 48 records
↳ 25 from After 2025
↳ 22 from 2020 - 2024
↳ 1 from Before 2020
↳ 25 from After 2025
↳ 22 from 2020 - 2024
↳ 1 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.
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 – Cryphia algae
⚠️ Please wait for the map to load fully – do not click the link shown.
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.
Monthly Records By Year:
Cryphia algae
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Cryphia algae
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Cryphia algae
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: Cryphia algae
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Cryphia algae
AGR: 22.38% | Total % Change: 236%
CUSUM Analysis: Cryphia algae
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 21 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 8 (August) 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: Cryphia algae
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Cryphia algae
Cryphia algae
( 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 - Cryphia algae – 48 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Littleover, Derby | SK33G | 02/08/2025 | 3 | adult | vc57_irecords_extract |
| Littleover, Derby | SK33G | 02/08/2025 | 3 | adult | vc57_irecords_extract |
| Chaddesden Garden | SK33T | 13/08/2025 | 1 | adult | vc57_irecords_extract |
| Belper, Derbyshire | SK34N | 13/08/2025 | 1 | adult | vc57_irecords_extract |
| Belper, Derbyshire | SK34N | 17/08/2025 | 1 | adult | vc57_irecords_extract |
| Belper, Derbyshire | SK34N | 18/08/2025 | 1 | adult | vc57_irecords_extract |
| Stoney Clouds, meadow | SK43T | 23/08/2025 | 1 | adult | vc57_irecords_extract |
| Mickleover garden | SK33C | 01/08/2025 | 2 | adult | vc57_irecords_extract |
| Chaddesden Garden | SK33T | 13/07/2025 | 1 | adult | vc57_irecords_extract |
| Aston-on-Trent, Derbyshire | SK43A | 19/07/2025 | 1 | adult | vc57_irecords_extract |
| Littleover | SK33G | 11/07/2025 | 21 | adult | vc57_irecords_extract |
| Littleover | SK33G | 12/07/2025 | 9 | adult | vc57_irecords_extract |
| Ingleby Ave, Derby | SK33L | 18/07/2025 | 7 | adult | vc57_irecords_extract |
| Ingleby Ave, Derby | SK33L | 27/07/2025 | 1 | adult | vc57_irecords_extract |
| Chaddesden Garden | SK33T | 29/07/2025 | 1 | adult | vc57_irecords_extract |
| Ingleby Ave, Derby | SK33L | 29/07/2025 | 1 | adult | vc57_irecords_extract |
| Chaddesden, Derby | SK33T | 13/07/2025 | 4 | adult | vc57_irecords_extract |
| Chaddesden, Derby | SK33T | 16/07/2025 | 5 | adult | vc57_irecords_extract |
| Chaddesden, Derby | SK33T | 18/07/2025 | 14 | adult | vc57_irecords_extract |
| Chaddesden, Derby | SK33T | 22/07/2025 | 1 | adult | vc57_irecords_extract |
| Chaddesden, Derby | SK33T | 25/07/2025 | 1 | adult | vc57_irecords_extract |
| Belper, Derbyshire | SK34N | 16/07/2025 | 1 | adult | vc57_irecords_extract |
| Belper, Derbyshire | SK34N | 19/07/2025 | 1 | adult | vc57_irecords_extract |
| Belper, Derbyshire | SK34N | 29/07/2025 | 1 | adult | vc57_irecords_extract |
| Mickleover garden | SK33C | 29/07/2025 | 1 | adult | vc57_irecords_extract |
| Allestree, Derby | SK33P | 01/08/2024 | 1 | pupa | vc57_irecords_extract |
| Birch Vale | SK08I | 26/08/2024 | 1 | adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 05/08/2024 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 02/08/2024 | 2 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 09/08/2024 | 1 | adult | vc57_irecords_extract |
| All | SK33P | 01/08/2024 | 1 | adult | vc57_irecords_extract |
| Sandiacre Garden | SK43T | 01/08/2024 | 1 | adult | vc57_irecords_extract |
| Sandiacre Garden | SK43T | 10/08/2024 | 1 | adult | vc57_irecords_extract |
| Sandiacre Garden | SK43T | 15/08/2024 | 1 | adult | vc57_irecords_extract |
| Littleover | SK33G | 11/08/2024 | 4 | adult | vc57_irecords_extract |
| Sandiacre | SK43S | 28/07/2024 | 1 | adult | vc57_irecords_extract |
| Sandiacre | SK43S | 30/07/2024 | 6 | adult | vc57_irecords_extract |
| West Park Fox Covert LNR | SK43W | 31/07/2024 | 1 | adult | vc57_irecords_extract |
| Sandiacre Garden | SK43T | 30/07/2024 | 1 | adult | vc57_irecords_extract |
| King's Newton | SK32Y | 29/07/2024 | 2 | adult | vc57_irecords_extract |
| Derby DE | SK33I | 31/07/2024 | 1 | adult | vc57_irecords_extract |
| Staveley Derbyshire | SK47H | 11/08/2023 | 1 | adult | vc57_irecords_extract |
| Sandiacre | SK43T | 11/08/2023 | 2 | adult | vc57_irecords_extract |
| Kings Newton Fields | SK32Y | 03/08/2023 | 1 | Adult | vc57_irecords_extract |
| Long Eaton, Marlborough Road | SK43X | 07/07/2023 | 1 | adult | vc57_irecords_extract |
| Sandiacre | SK43T | 30/07/2023 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 19/07/2022 | 2 | Adult | vc57_irecords_extract |
| Lancaster Ave, Sandiacre | SK43S | 03/08/2019 | 1 | adult | Danes_2019-2021 |