If looks like a flu on steroids, it's probably a horse or deer fly.
Wasps and hornets
The bug with orange stripes that I have encountered recently is a tiger beetle.
The bug that is black with orange stripes is a milkweed bug.
a bee
The bug with stripes on its back is called a ladybug.
the only dark colored small round bugs seem to be volbeat and illumise.. they are both fireflies
The insect you are referring to is likely a milkweed bug, which is black with orange stripes.
2 wings a lady bug has
A regular bee. Bees can bee (get it? 'Bee' instead of 'be') red, blue, or green.
The black bug with two red stripes on its body is commonly known as the "milkweed bug."
a millipede
The purpose of the wings on a bug is to help it fly and move around in its environment.