The Cave Cricket looks like a spider and jumps like crazy. They are harmless. Here are some photos and video along with aliases:
Camel Crickets
Spider Crickets
Creepers
Spricket
Criders
These are all the same insect. There are slight color variations. They have a few different names. They live outdoors, in caves, and basements.
Crickets eat food and avoid predators. Some have stripes, long legs, and wings.