Moths & butterflies known to feed on American willowherb (Epilobium adenocaulon):
| Species | Status | Match |
|---|---|---|
| Bedstraw hawk-moth Hyles gallii |
Vulnerable | any Epilobium species |
| No common name Altica lythri |
LC | this species |
| Elephant hawk-moth Deilephila elpenor |
LC | any Epilobium species |
| Small elephant hawk-moth Deilephila porcellus |
LC | any Epilobium species |
| Striped hawk-moth Hyles livornica |
Not assessed | any Epilobium species |
| Bright-line brown-eye Lacanobia oleracea |
LC | any Epilobium species |
| The gothic Naenia typica |
LC | any Epilobium species |
| Setaceous hebrew Xestia c-nigrum |
LC | any Epilobium species |
Host-plant data: Cook et al. (2025), Traits data for the butterflies and macro-moths of Great Britain and Ireland, 2024, UK Centre for Ecology & Hydrology / Butterfly Conservation; and Padovani et al. (2020), Database of Insects and their Food Plants (DBIF), UK Centre for Ecology & Hydrology (both Open Government Licence). Contains data supplied by UK Centre for Ecology & Hydrology.