The saffron robber fly (Laphria saffrana) is an extremely fast bee-colored hunter that has to determine, while perched, which insects it wants to chase and eat. This is complicated by the fact that its eyes have poor resolution, especially at distances greater than one meter. It has a varied diet, but if it targets the wrong bug, it could waste a lot of energy chasing after a poisonous meal.
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Source: Phys.org