Not quite a Cockamouse, but scary.

http://www.nytimes.com/2011/12/13/science/leaping-cockroach-discovered.html?ref=science

Scientists in South Africa have discovered a new type of cockroach with an interesting quality-it can jump 50 of it's body lengths-equivocating it with a grasshopper in terms of jumping power. The cockroach both walk and jumps. So next time you're cleaning you're kitchen, watch your back.