Other British Endangered Species
Crustaceans
- White clawed crayfish Austropotamobius pallipes
Insects
Ants
- Black-backed meadow ant Formica pratensis (possibly extinct)
- Black bog ant Formica candida
- Narrow-headed ant Formica exsecta
- Red-barbed Ant Formica rufibarbis
Bees
- Shrill carder bee Bombus sylvarum
Beetles
- Beaulieu dung beetle
- Aphodius niger (a dung beetle)
- Blue ground beetle Carabus intricatus
- Crucifix ground beetle Panagaeus crux-major (a ground beetle)
- Hazel pot beetle Cryptocephalus coryli (a leaf beetle)
- Lizard weevil Cathormiocerus britannicus (probably endemic)
- Stag beetle Lucanus cervus
- Violet click beetle Limoniscus violaceus
Butterflies and moths
- Bright wave moth Idaea ochrata
- Heath fritillary Mellicta athalia
- High brown fritillary Argynnis adippe
- Large blue butterfly Maculinea arion
- Large copper butterfly Lycaena dispar
- Marsh fritillary Eurodryas aurinia
- Netted carpet moth Eustroma reticulata
- Pearl bordered fritillary Boloria euphrosyne
- Silver spotted skipper butterfly Hesperia comma
- Speckled footman moth Coscinia cribraria
Crickets
- European mole cricket Gryllotalpa gryllotalpa
Damselflies
- Southern damselfly Coenagrion mercuriale
Flies
- Golden hoverfly Chrysotoxum octomaculatum
- Hornet robberfly Asilus crabroniformis
- Manx robber fly Machimus cowini (endemic)
Molluscs
- Gastropods Desmoulin’s whorl snail Vertigo moulinsiana
- Geyer’s whorl snail Vertigo geyeri
- Glutinous snail Myxas glutinosa
- Little whirlpool ram’s-horn snail Anisus vorticulus
- Narrow-mouthed whorl snail Vertigo angustior
- Round-mouthed whorl snail Vertigo genesii
- Sandbowl snail Catinella arenaria
- Shining rams-horn snail Segmentina nitida Bivalves
- Depressed river mussel Pseudanodonta complanata
- Freshwater pea mussel Pisidium tenuilineatum
- Freshwater pearl mussel Margaritifera margaritifera
Other invertebrates
- Ivell’s sea anemone (endemic and probably extinct)
- Medicinal leech Hirudo medicinalis
- Starlet sea anemone Nematostella vectensis