| Family: | Pterophoridae | 
| Subfamily: | Pterophorinae | 
| Genus: | Platyptilia | 
| Species: | isodactylus | 
| Authority: | (Zeller, 1852) | 


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 | 
|---|---|---|---|---|
| Freshwater (SZ38) | 1951 | one | K G Blair | Adult | 
| Site | Date | Quantity | Recorder | Stage | 
|---|---|---|---|---|
| Lower Test Marshes NR (SU31) | 1991 | - | R F McCormick | Pupal | 
| Lower Test Marshes NR (SU31) | 04/06/1991 | three | J R Langmaid, D H Sterling, R J B Hoare | Pupal | 
| Lower Test Marshes NR (SU31) | 13/05/2000 | one | J R Langmaid, B Elliott | Adult | 
| Stanpit Marsh (SZ19) | 09/06/2005 | 12 | P A Davey, G Palmer, R P Harley | Adult | 
| Burton Meadows (SZ19) | 10/06/2005 | seven | Peter A Davey | Adult | 
| Burton Meadows (SZ19) | 17/06/2005 | one | P A Davey, S Davis | Adult | 
| Stanpit Marsh (SZ19) | 07/09/2005 | one | Peter A Davey | Adult | 
| Nursling (SU31) | 06/05/2010 | 20 | Julian Clarke | Larval | 
| Ashurst, NF (SU31) | 17/08/2012 | one | Keith Godfrey | Adult | 
| Stanpit Marsh LNR (SZ19) | 13/08/2024 | one | Mike Jeffes | Adult |