| Family: | Depressariidae | 
| Subfamily: | Depressariinae | 
| Genus: | Agonopterix | 
| Species: | rotundella | 
| Authority: | (Douglas, 1846) | 


The abundance in each month is indicated as follows:
 No records
 No records Very occasional
 Very occasional Irregular
 Irregular Uncommon
 Uncommon Off-peak, but not unusual
 Off-peak, but not unusual Off-peak, but not unusual
 Off-peak, but not unusual Main flight time
 Main flight time| J | F | M | A | M | J | J | A | S | O | N | D | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adult |  |  |  |  |  |  |  |  |  |  |  |  | 
| Larval |  |  |  |  |  |  |  |  |  |  |  |  | 
| Site | Date | Quantity | Recorder | Stage | 
|---|---|---|---|---|
| Sandown (SZ58) | 1893 | - | IWG | Adult | 
| Sandown (SZ58) | 01/09/1898 | - | L B Prout | Adult | 
| Sandown (SZ58) | 07/09/1898 | - | L B Prout | Adult | 
| Freshwater (SZ38) | 1900 | - | Victoria County Hist of Hants & IW 1900 | Adult | 
| St. Catherine's Down (SZ47) | 1900 | - | Victoria County Hist of Hants & IW 1900 | Adult | 
| Gurnard (SZ49) | 1900 | - | K G Blair | Adult | 
| Sandown (SZ58) | 1341 | - | L B Prout | Adult | 
| Shanklin (SZ58) | 1926 | - | W Fassnidge | Adult | 
| Ventnor (SZ57) | 06/04/1928 | one | E G R Waters | Adult | 
| Freshwater (SZ38) | 1951 | one | K G Blair | Adult | 
| Ventnor (SZ57) | 19/04/1977 | - | Richard J Dickson | Adult | 
| Freshwater (SZ38) | 16/03/1998 | one | Sam Knill-Jones | Adult | 
| Freshwater Bay (SZ38) | 19/08/2012 | one | Sue Davies | Adult | 
| Rocken End (SZ47) | 23/09/2014 | one | Phil Barden | Adult | 
| Compton (SZ38) | 10/08/2015 | one | Stephen Plummer | Adult | 
| Wheelers Bay (SZ57) | 06/08/2016 | one | Andy Butler | Adult | 
| Bonchurch (SZ57) | 28/03/2019 | one | James Halsey | Adult | 
| Wheelers Bay (SZ57) | 13/04/2020 | one | Andy Butler | Adult | 
| Shanklin (SZ58) | 04/09/2020 | one | Iain Outlaw | Adult | 
| Rocken End (SZ47) | 04/04/2022 | three | Iain Outlaw | Adult | 
| Freshwater Bay (SZ38) | 10/09/2022 | one | Phil Barden | Adult | 
| Compton Down (SZ38) | 11/09/2022 | one | Phil Barden | Adult | 
| Freshwater Bay (SZ38) | 20/09/2022 | one | Phil Barden | Adult |