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Andrena subopaca is a species of mini-mining bee, that's very similar to the common mini-miner. It's not always possible, but you may be able to tell these two apart by the fewer visible indents on the thorax of a female impunctate mini-mining bee. Likewise, males have long white hairs that cover the legs and face. These bees are locally abundant throughout the UK, and unlike other species of mini-miner, there's no particular association with umbellifers.
These bee's can contribute to pollination in the garden.
These bees are tiny reaching under half a centimetre long. They are mainly black with silvery grey-white hairs. These bees are strikingly similar to that of A. minutula; they can be challenging to tell apart by eye.
These bees are present in Europe.
It's not recommended to treat gardens with Adrena bees.
These bees are top pollinators; ideally, they shouldn't be removed.