A fly which enters buildings in large numbers while looking for a place to overwinter.
Pollenia rudis (family Calliphoridae), and the smaller Thaumatomyia notata (family Chloropidae)
A fly that often enters buildings in large numbers during the autumn while looking for a place to overwinter.
Pollenia rudis (family Calliphoridae), whose larvae parasitize earthworms, and the smaller Thaumatomyia notata (family Chloropidae)
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