Diet Overlap

Chalcosyrphus nemorum Parasyrphus annulatus

Common Diet

Crataegus heterophylla (Common Hawthorn) Crataegus laevigata palmstruchii (Midland Hawthorn)

Common Habitat

Burnham Beeches Coedydd Derw a Safleoedd Ystlumod Meirion/ Meirionnydd Oakwoods and Bat Sites East Hampshire Hangers Morecambe Bay Pavements Roudsea Wood and Mosses The New Forest Thursley, Ash, Pirbright and Chobham Tintagel–Marsland–Clovelly Coast Windsor Forest and Great Park Witherslack Mosses