| Family: | Epermeniidae |
| Subfamily: | Epermeniinae |
| Genus: | Epermenia |
| Species: | aequidentellus |
| Authority: | (Hofmann, 1867) |


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 |
|---|---|---|---|---|
| West Park (SU11) | 14/06/2002 | one | David G Green | Adult |
| Site | Date | Quantity | Recorder | Stage |
|---|---|---|---|---|
| Freshwater (SZ38) | 1873 | - | Anon | Adult |
| Ventnor (SZ57) | 1873 | - | Anon | Adult |
| Sandown (SZ58) | 1900 | - | Victoria County Hist of Hants & IW 1900 | Adult |
| Freshwater (SZ38) | 1900 | - | Victoria County Hist of Hants & IW 1900 | Adult |
| Freshwater (SZ38) | 01/08/1954 | 20 | S Wakely | Larval |
| Freshwater (SZ38) | 01/07/1959 | - | J Lobb | Adult |
| Freshwater (SZ38) | 28/04/1967 | - | E C Pelham-Clinton | Adult |
| Ventnor (SZ57) | 04/08/2003 | - | J R Langmaid, B Elliott | Larval |
| Brook Down (SZ38) | 12/07/2018 | one | Phil Barden | Adult |
| Bonchurch (SZ57) | 10/07/2019 | one | Phil Barden | Adult |
| Wootton Bridge (SZ59) | 17/05/2022 | one | Brian Jones | Adult |
| Shanklin (SZ58) | 11/06/2022 | one | Iain Outlaw | Adult |
| Wheelers Bay (SZ57) | 22/06/2022 | one | Andy Butler | Adult |
| Wheelers Bay (SZ57) | 08/07/2022 | one | Andy Butler | Adult |
| Wheelers Bay (SZ57) | 12/07/2022 | one | Andy Butler | Adult |
| Site | Date | Quantity | Recorder | Stage |
|---|---|---|---|---|
| Southsea (SZ69) | 09/08/1998 | one | John R Langmaid | Adult |
| Cams Bay, Fareham (SU50) | 01/08/2000 | one | J R Langmaid, I R Thirlwell | Larval |
| Lee-on-Solent (SZ59) | 17/09/2002 | - | J R Langmaid, B Elliott | Larval |
| Fareham (SU50) | 21/06/2006 | one | Keith Wheeler | Adult |
| Fareham (SU50) | 23/06/2006 | one | Keith Wheeler | Adult |
| Portsmouth (SU60) | 05/08/2007 | one | Ian Thirlwell | Adult |
| Southsea (SZ69) | 20/07/2009 | one | John R Langmaid | Adult |
| Portsmouth (SU60) | 23/05/2014 | one | Ian Thirlwell | Adult |
| Southsea (SZ69) | 14/06/2014 | one | John R Langmaid | Adult |
| Southsea (SZ69) | 01/07/2015 | one | John R Langmaid | Adult |
| Stubbington (SU50) | 04/07/2015 | one | Dan Houghton | Adult |
| Portsmouth (SU60) | 23/07/2019 | one | Ian Thirlwell | Adult |
| Southsea (SZ69) | 15/06/2020 | one | John R Langmaid | Adult |
| Needs Ore NNR (SZ49) | 23/07/2022 | one | Chris Button | Adult |
| Hengistbury Head (SZ19) | 26/06/2023 | one | Mike Jeffes | Adult |