37.071 BF582 – Grey Rush Case-bearer – Coleophora glaucicolella – (Wood, 1892)
Adult Micro: CAT 4 – Dissection required – 
Leaf-miner: CAT A – Recorded accepted without the leaf or a photo – Larval Case: C4 – As C3 but also a Gen.Det. required –
– click for General Verification Guidelines | – click for Specific Verification Guidelines
Leaf-miner: CAT A – Recorded accepted without the leaf or a photo – Larval Case: C4 – As C3 but also a Gen.Det. required – – click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Uncertain/Unknown – Insufficient Data 
– Leaf-miner
** Identification write up and photograph required
**
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.Confusion Species: Coleophora alticolella – Common Rush Case-bearer
Distribution: (Last record: 1954 at Taxal & Goyt Valley ) – Uncertain/Unknown. Harrison & Sterling 1988 refer to only two records from 1954 Gen Det Taxal and Goyt Valley one adult and a case Gen Det. Most records of leaf mines are aggregated to C.alticolla-glaucicolella. A recent agg record 02/03/2025 Markham Vale.
General Comment: None Mine Period Additional: None.
Mine ID Difficulty:
– Mine cannot be identified without breeding through and then adult may need to be examined by Gen Det Prep. Mine Type/s: Not Recorded
Mine Feeding Method/s: Case
Mine Comment: The larva primarily feeds on the seeds of various rushes (Juncus spp) rather than creating traditional leaf-mines. A white silk case is formed in the second instar often making it visible while small. The case is similar to C. alticolella, but can be distinguished by specific larval characteristics, such as the presence of dorsal sclerites on the metathroax.
*** Last updated on 5 April 2026 by TD ***
Last Recorded Year: 1954
Last Recorded By – Harrison & Sterling 1988
Last Recorded General Area – Taxal & Goyt Valley
Selected Images:
Image Gallery
No gallery images found for this moth.
Temporal Distribution Chart
(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 Coleophora glaucicolella
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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 – Coleophora glaucicolella
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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.
Monthly Records By Year:
Coleophora glaucicolella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year:
Coleophora glaucicolella
( data is based on 'Adult' stage records only )
First/Last Recorded Dates: Coleophora glaucicolella
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Coleophora glaucicolella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Coleophora glaucicolella
AGR: 0% | Total % Change: 0%
Coleophora glaucicolella
Insufficient records/data for an AGR analysis
Years Analysed: 2000 – 2026
Hectad (10kmx10km) Coverage: Coleophora glaucicolella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Coleophora glaucicolella
Coleophora glaucicolella
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.
Mine Periods – Indicative –vs– Recorded Data
Coleophora glaucicolella
Coleophora glaucicolella
( data includes both Larvae and Adult Stages )
Mine 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 mine periods [month/s]. The coloured lines represent the actual months seen mining, from site observation records received between 2020-2026.
Records Behind the Map and Charts - Coleophora glaucicolella – 0 records available
Listed by Year - descending - scroll across to see all table columns
No records found for Coleophora glaucicolella.