Niagara Bee

Ground beetles also play a role in pollination. As they wander through your garden or yard, they carry pollen from one plant to another, aiding plant reproduction and supporting local flora.
They break down plant debris, which enhances nutrient cycling, and their burrowing improves air and water circulation, benefiting plant roots. Additionally, their waste enriches the soil with organic matter.
Ground beetles have an insatiable appetite, particularly for common garden pests like aphids, caterpillars and slugs. Armed with powerful mandibles, they feast on these pests, helping keep vegetation healthy and thriving.
https://onlineentomology.ifas.ufl.edu/ground-beetles-natural-pest-control-for-a-thriving-garden/

Most bees collect just pollen or just nectar on any trip, but a few carry both at the same time. The pollen is stuffed into hairy receptacles on their hind legs called corbiculae. A single bee can carry about half her own body weight in pollen.
https://honeybeesuite.com/pollen-collection/