Species Recorded | Taxon | Scientific Name | Common Name | Records | Latest |
| moth or butterfly - micro moth | Yponomeuta | a small ermine moth (unidentified) | 667 | 2025 |
| moth or butterfly - micro moth | Yponomeuta cagnagella | Spindle Ermine | 218 | 2025 |
| moth or butterfly - micro moth | Yponomeuta evonymella | Bird-cherry Ermine | 683 | 2024 |
| moth or butterfly - micro moth | Yponomeuta irrorella | Scarce Ermine | 2 | 2023 |
| moth or butterfly - micro moth | Yponomeuta malinellus | Apple Ermine | 274 | 2024 |
| moth or butterfly - micro moth | Yponomeuta padella | Orchard Ermine | 271 | 2024 |
| moth or butterfly - micro moth | Yponomeuta plumbella | Black-tipped Ermine | 84 | 2024 |
| moth or butterfly - micro moth | Yponomeuta rorrella | Willow Ermine | 44 | 2024 |
| moth or butterfly - micro moth | Yponomeuta sedella | Orpine Ermine | 6 | 2022 |
| moth or butterfly - micro moth | Ypsolopha | a Ypsolopha species (unidentified) | 1 | 2011 |
| moth or butterfly - micro moth | Ypsolopha dentella | Honeysuckle Moth | 230 | 2024 |
| moth or butterfly - micro moth | Ypsolopha horridella | Dark Tufted Scallop | 1 | 2012 |
| moth or butterfly - micro moth | Ypsolopha mucronella | Spindle Moth | 21 | 2023 |
| moth or butterfly - micro moth | Ypsolopha nemorella | Hooked Smudge | 11 | 2014 |
| moth or butterfly - micro moth | Ypsolopha parenthesella | White-shouldered Smudge | 50 | 2022 |
| moth or butterfly - micro moth | Ypsolopha scabrella | Wainscot Smudge | 161 | 2024 |
| moth or butterfly - micro moth | Ypsolopha sequella | Pied Smudge | 78 | 2023 |
| moth or butterfly - micro moth | Ypsolopha sylvella | Long-barred Ochre | 8 | 2015 |
| moth or butterfly - micro moth | Ypsolopha ustella | Varied Ochre | 22 | 2023 |
| moth or butterfly - micro moth | Ypsolopha vittella | Dusky Rabbit Moth | 3 | 2006 |
| plant | Yucca | a Yucca species (unidentified) | 2 | 2018 |
| plant | Yucca gloriosa | Spanish Dagger | 7 | 2023 |
| plant | Yucca gloriosa var. recurvifolia | Curved-leaved Spanish-dagger | 3 | 1998 |
| plant | Yushania anceps | Indian Fountain-bamboo | 2 | 2016 |