blue fly pollinating common milkweed (IMAGE)
Caption
Flies play a crucial role as pollinators, second only to bees in terms of the volume of crops and habitat they pollinate. Pictured here is a blue fly pollinating common milkweed (Asclepias syriaca).
Credit
Martha B. Moss/Penn State Extension Master Gardener / Penn State
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Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.
License
CC BY-NC-ND