Wool Carder Bees mating. We have a ton in our yard during the day (they seem to vanish in early evening). The male stakes out a nectar supply, and defends it from other males and other pollinators. Very aggressive, they'll attack both honeybees and bumblebees, both of which are huge compared to them.
The male basically waits for females to show up, and then attempts to mate with them.
I love their eyes.
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