Unknown Red and Black beetles

[fishman10]

I was walking the backyard yesterday trying to find something to photograph and came across these red and black beetles. There were hundreds of them in a single 1 square foot area. I have no idea what kind they are. If you have any guess let me know. Found in North Texas


Pictures
Unknown Red and Black Beetles


video

 

[Dracaena]

Makes me think of nymph stages of the red fire bug.