Marsh-Hopper

Marsh-Hoppers are small creatures that explode upon touching their intruder, acting like a kamikaze troop.

Origin
Marsh hoppers are small strange organisms that originate from the planet Rigil Kentaurus and have a suicidal instinct for protecting their territory, so much that they leap up to their intruders and explode, by over-inflating themselves. Upon explosion, toxic slime released from their intestines splashes over their victim.