| Family: | Yponomeutidae |
| Subfamily: | Yponomeutinae |
| Genus: | Cedestis |
| Species: | gysseleniella |
| Authority: | Zeller, 1839 |


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 |
|---|---|---|---|---|
| Catisfield (SU50) | 13/07/1972 | one | Richard J Dickson | Adult |
| Emer Bog NR (SU32) | 04/05/1987 | two | J R Langmaid, D H Sterling | Larval |
| Southsea (SZ69) | 06/07/1987 | one | John R Langmaid | Adult |
| Botley Wood (SU50) | 17/06/1993 | one | J R Langmaid, R M Palmer | Adult |
| Southsea (SZ69) | 25/06/1995 | one | John R Langmaid | Adult |
| Botley Wood (SU51) | 01/07/1998 | one | Richard J Dickson | Adult |
| Funtley (SU50) | 12/06/2004 | one | Maurice Opie | Adult |
| Botley Wood (SU51) | 13/06/2008 | one | Tony Davis | Adult |
| Hurn (SZ19) | 30/06/2010 | one | Mike Jeffes | Adult |
| Hurn (SZ19) | 03/06/2011 | one | Mike Jeffes | Adult |
| Ashurst, NF (SU31) | 03/06/2011 | one | Keith Godfrey | Adult |
| Portchester (SU60) | 17/07/2013 | one | Darren Fry | Adult |
| Ashurst, NF (SU31) | 18/07/2013 | one | Keith Godfrey | Adult |
| Needs Ore NNR (SU40) | 16/07/2022 | one | Chris Button | Adult |
| Needs Ore NNR (SU40) | 02/07/2023 | two | Chris Button | Adult |
| Needs Ore NNR (SU40) | 02/07/2023 | two | Peter Cranswick | Adult |
| Waterlooville (SU60) | 27/07/2023 | one | David Wheatley | Adult |
| Site | Date | Quantity | Recorder | Stage |
|---|---|---|---|---|
| Whitemoor Vale (SU83) | 26/07/1977 | two | Richard J Dickson | Adult |
| Woolmer Forest (SU73) | 19/06/1980 | - | J R Langmaid, E C Pelham-Clinton, R J Heckford | Adult |
| Farnborough (SU85) | 09/07/1995 | one | R W Parfitt | Adult |
| Miles Hill (SU85) | 2001 | one | Jonty Denton | Adult |
| Yateley Heath (SU85) | 20/06/2002 | one | Tony Davis | Adult |
| Bramshill Common (SU76) | 25/06/2002 | one | Tony Davis | Adult |
| Pamber Forest (SU66) | 22/06/2003 | one | Graham Dennis | Adult |
| Fleet (SU85) | 29/03/2005 | one | Rob Edmunds | Larval |
| Fleet (SU75) | 19/04/2006 | two | Rob Edmunds | Larval |
| Basingstoke (SU65) | 17/07/2006 | one | Mike Wall | Adult |
| Basingstoke (SU65) | 19/07/2006 | one | Mike Wall | Adult |
| Pamber Forest (SU66) | 07/06/2008 | one | David G Green | Adult |
| Deadwater Valley (SU83) | 13/06/2009 | one | Nick Montegriffo, Mike Wall | Adult |
| Basingstoke (SU65) | 18/07/2013 | one | Mike Wall | Adult |
| Farnborough (SU85) | 21/07/2013 | one | Keith Wills | Adult |
| Pamber Forest (SU66) | 30/06/2015 | one | Graham Dennis | Adult |
| Pamber Forest (SU66) | 16/07/2015 | one | Graham Dennis | Adult |
| Anna Valley, Andover (SU34) | 05/07/2018 | one | Tim Norriss | Adult |
| Yateley (SU86) | 26/05/2020 | one | Josie Hewitt | Adult |
| Pamber Forest (SU66) | 17/06/2020 | one | Graham Dennis | Adult |
| Castle Bottom NNR (SU75) | 25/06/2020 | - | Josie Hewitt, Tony Davis | Adult |
| Farnborough (SU85) | 07/07/2023 | one | Keith Wills | Adult |