35.152 BF764  –  Gelechiidae –  Gelechiinae – Pseudotelphusa scalella – Pied Oak Moth – (Scopoli, 1763) Adult Micro:  CAT 3 – Very Rare/Scarce/Migrant/Adventive – confusion with leaf mines       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Brown –  Significant Record / Very Rare / Vagrant    
Taxonomy:   Micro   >>  Gelechiidae  >> Gelechiinae
Other Name/s: Black-spotted Groundling
ID Difficulty:  Red – difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
ID pointers: A distinctive black and white gelechiid
Distribution:  (Last record: 8 July 2021 at Breaston )  –  Significant record – Harrison & Sterling commented recorded from 20th May – 12th June Repton Shrubs but no further details – A record from Crich 1996 & Dovedale 2009 (DaNES) and one from Breaston 8/7/2021 (iRecord)
Flight Period: May /  June /  –  Flies in May & June and is attracted to light Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Steve Thorpe  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 11-13mm
Food Plant: Oak and mosses on tree trunks
Last Recorded Year: 2021
Last Recorded By – Steve Thorpe
Last Recorded General Area – Breaston

Selected Images:  



Distribution Map for Pseudotelphusa scalella

Found 3 records
    ↳ 0 from After 2025
    ↳ 1 from 2020 - 2024
    ↳ 2 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 – Pseudotelphusa scalella

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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: Pseudotelphusa scalella
( data includes both Larvae and Adult Stages )

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


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


CUSUM Analysis: Pseudotelphusa scalella
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 24 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 2009, reaching above average levels. The lowest population point occurred near 2009, 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: Pseudotelphusa scalella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Pseudotelphusa scalella
( 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 - Pseudotelphusa scalella – 3 records available

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

Site NameTetradDateCountStageSource
Woodland AveSK43R08/07/20211adultvc57_irecords_extract
Dovedale (Staffs side)SK15K01/06/20091Adultvc57_danes_bc_data
Crich Chase, Ambergate (site not precise)SK35L27/06/19961Adultvc57_danes_bc_data

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