Species Account for Pherbellia nana
Pherbellia nana (Fallén, 1820)
Diptera: other groups: Sciomyzidae
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Additional Phenology Data
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Essex Red Data List comment
Recorded from 1 out of 57x10km.sq. records in county
Species text
This snail killing fly is recorded widely in England as far north as Yorkshire. It is widespread but very local with about 20 known post 1960 sites. A wide range of wetlands are used including open marshes and deeply shaded forest pools, margins of lakes and dune slacks. Permanent or temporary water bodies both appear to be used; there are indications that pools and ditches which dry out in summer and have sparse emergent Phragmites may be preferred. The larvae develop as parasitoids in a range of aquatic snails and terrestrial species. Management should ensure a range of vegetation types including temporary ponds, ditches and their marginal vegetation using rotational management where necessary. Seasonally fluctuating water levels may be of importance (Falk, 1991). References
Habitats
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