| Family: | Cosmopterigidae |
| Subfamily: | Cosmopteriginae |
| Genus: | Cosmopterix |
| Species: | zieglerella |
| Authority: | (Hübner, [1810]) |


The abundance in each month is indicated as follows:
No records
Very occasional
Irregular
Uncommon
Off-peak, but not unusual
Off-peak, but not unusual
Main flight time| J | F | M | A | M | J | J | A | S | O | N | D | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adult | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Larval | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Site | Date | Quantity | Recorder | Stage |
|---|---|---|---|---|
| Alverstone (SZ58) | 20/09/2014 | - | Phil Barden | Mine |
| Afton Marsh (SZ38) | 26/06/2017 | one | Phil Barden | Adult |
| Afton Marsh (SZ38) | 30/06/2017 | five | Phil Barden | Adult |
| Afton Marsh (SZ38) | 09/09/2018 | 20 | Sue Davies | Mine |
| Afton Marsh (SZ38) | 09/08/2019 | 20 | Sue Davies | Mine |
| Afton Marsh (SZ38) | 06/07/2020 | six | Sue Davies | Adult |
| Afton Marsh (SZ38) | 14/09/2020 | - | Phil Barden | Mine (vacated) |
| Alverstone (SZ58) | 17/09/2020 | three | Phil Barden | Mine (vacated) |
| Afton Marsh (SZ38) | 15/09/2022 | - | Phil Barden | Mine (vacated) |
| Ventnor (SZ57) | 16/09/2022 | - | Phil Barden | Mine (vacated) |
| Site | Date | Quantity | Recorder | Stage |
|---|---|---|---|---|
| Bushfield (SU42) | 15/09/2004 | 30 | Tim Walker | Mine |
| Allbrook (SU42) | 02/09/2010 | one | David S Hubble | Mine |
| Nursling (SU31) | 24/07/2022 | - | Jason Claxton | Mine (vacated) |
| Test Way, Lee (SU31) | 20/08/2022 | - | Jason Claxton | Mine (vacated) |
| Mansbridge (SU41) | 05/08/2023 | six | Tony Davis | Mine |
| Site | Date | Quantity | Recorder | Stage |
|---|---|---|---|---|
| Silchester Common (SU66) | 30/07/2003 | 100 | Graham Dennis | Mine |
| Dogmersfield (SU75) | 03/09/2003 | two | Rob Edmunds | Larval |
| Dogmersfield (SU75) | 06/09/2003 | two | Rob Edmunds | Larval |
| Winchfield (SU75) | 10/09/2003 | two | Rob Edmunds | Larval |
| Dogmersfield (SU75) | 11/09/2003 | one | Rob Edmunds | Larval |
| Fleet (SU85) | 18/09/2003 | one | Rob Edmunds | Larval |
| Fleet (SU75) | 22/09/2003 | 12 | Rob Edmunds | Larval |
| Fleet (SU75) | 25/09/2003 | two | Rob Edmunds | Larval |
| Fleet (SU75) | 27/08/2004 | 11 | Rob Edmunds | Larval |
| Fleet (SU85) | 18/12/2004 | one | Rob Edmunds | Mine (vacated) |
| Silchester Common (SU66) | 23/06/2005 | one | Graham Dennis | Adult |
| Fleet (SU75) | 21/08/2005 | three | Rob Edmunds | Larval |
| Greywell (SU75) | 16/09/2005 | two | Paul Boswell | Mine (vacated) |
| Fleet (SU75) | 03/09/2006 | - | Rob Edmunds | Larval |
| Fleet (SU75) | 10/09/2007 | - | Rob Edmunds | Mine |
| Church Crookham (SU85) | 22/09/2008 | two | Rob Edmunds | Mine |
| Leckford Estate (SU33) | 28/09/2009 | - | J R Langmaid, B Elliott | Mine (vacated) |
| Weston Colley (SU53) | 01/08/2010 | - | David G Green | Larval |
| Hunton (SU43) | 19/08/2010 | - | David G Green | Larval |
| Shortheath Common, Oakhanger (SU73) | 23/09/2011 | - | Tony Davis | Mine (vacated) |
| Leckford Estate (SU33) | 20/10/2011 | - | J R Langmaid, M R Young, B Elliott | Mine (vacated) |
| Leckford Estate (SU33) | 13/08/2012 | - | J R Langmaid, M R, J E Young | Mine |
| Silchester Common (SU66) | 13/09/2013 | eight | Graham Dennis | Mine (vacated) |
| Silchester Common (SU66) | 08/08/2018 | - | Graham Dennis | Mine (vacated) |
| Farnborough (SU85) | 25/06/2020 | one | Keith Wills | Adult |
| Woolmer Forest (SU73) | 31/07/2020 | one | Tony Davis | Mine |
| Leckford Estate (SU33) | 17/09/2020 | - | J R Langmaid, M R, J E Young, B Elliott | Mine |
| Lower Bullington (SU44) | 30/08/2022 | seven | Tony Davis | Mine (vacated) |