Complex sentence: An entomologist named Roderick Rose, the Hellgrammite subjected himself to a mutagenic process that transformed him into a grasshopper-like humanoid insect possessing superhuman strength and leaping abilities, the power to secrete adhesives and weave transformative or imprisoning cocoons, and a durable exoskeleton.
Split into simpler sentences: An entomologist named Roderick Rose, the Hellgrammite subjects himself to a mutagenic process that transforms him into a grasshopper-like humanoid insect. He possesses superhuman strength and leaping abilities, the power to secrete adhesives and weave transformative or imprisoning cocoons, and a durable exoskeleton.