a small exotic fameluned, it is a great animal, why i know this; i have 1 myself
The bug that is 2 inches long and has six legs, wings, and a triangle on its back sounds like a stinkbug. When it is disturbed, this bug will let out a very fowl odor.
a water bug
a stink bug...
lady bug!
Depending on where it was found, it could possibly be an Odontotaenius disjunctus. I am not an entomologist, but it is the only insect that I have personally encountered with similar traits.
The Missouri bug is obviously the black beetle.
Milkweed bug
A lady bug is a round looking insect that is usually red with black spots, and release a bad smell when killed or agitated. They are usually 2 to 3 millimeters tall.
A black scaly bug that has tentacles is known as a black turpentine beetle. These beetles use their tentacles as sensory organs.
between 2 and 5 inches
That would be Castelia city.
5 inches tall