Unsure What Aphids

Tiny aphid and a teenier baby one

Same ones backlit

A big black aphid of sorts?

Ants tending black aphids

A different group of ants tending a large herd of black aphids

A lot lot lot of black aphids

Those funny thing sticking out of its abdomen are called cornicles.

A red tear-shaped one

A hapless one being eaten by a ladybug larvae