Knapweed (Centaurea) is a draw for this big Golden Northern Bumble Bee/Bombus fervidus.
And for this European Small-Woolcarder Bee/Pseudoanthidium nanum. This relatively recent introduction to North America loves this plant.
Another Golden Northern in a bindweed flower.
Nearby this Cerceris weevil wasp was lurking or resting. And, for a finale, a female Monarch laying eggs on stubby young Comms Milkweeds.
Backyard and Beyond 
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