Many Hemiptera suck plant juices although some have evolved to suck blood and body fluids. Hemiptera groups include water scorpions, water boatman, backswimmers, water striders, plant bugs, bed bugs, assassin bugs, flat bugs, seed bugs, red bugs and stink bugs.
Assassin bugs gain their sinister name from their habit of lying in ambush for their insect prey. With speed and precision, this bug injects its victim with a lethal toxin that dissolves tissue. Although many bugs use their sucking mouthparts for sipping plant juices, some have evolved as predators. When the food supply is limited, this insect will give up its ambush routine for a more active approach.