Giant Asian mantis preys on small brown treesnakes?
Bjorn Lardner and Julie Savidge, Colorado State University biologists working on the brown treesnake on Guam have recently published an article describing an observation where a giant Asian mantis attacked a small brown treesnake. A video of the encounter was made and can be seen near the end of Bjorn's Snakes on an Island video.
In this case, the snake escaped unharmed. Would be fun to put some mantids and small snakes in a cage to see who emerges as the victor.