Predaceous diving beetles are primarily carnivores, but will eat certain underwater plants if need be. Normally, when the diving beetle waits for its prey, it rears back and opens its mandibles wide, waiting for the prey to come close enough for it to strike. But occasionally this predator gets impatient. When this is the case it will approach its victim and quickly bite it and kill it then and there. It also secretes digestive enzymes to help aid in the digestion process and ends up digesting its food and then ingesting it.

predaceous diving beetles courtesy of

Click HERE to read more about the reproduction and differing life stages of a diving beetle

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