The diagram illustrates the process by which small and large Venus Flytrap species capture and digest small prey to maximize the use of digestive enzymes.
Both use similar mechanism, which allows them to recognize preys with an unique feature called trigger hairs and release digestive enzymes to dissolve their feat into nutrition.
The large trap, however, demonstrates a more complex sequence. Like the small trap, it is activated when prey comes into contact with its trigger hairs. The trap closes tightly to trap the insect inside. The small trap doesn’t miss any prey since it tends to hold and digest every victims trapped inside when the large one takes an additional function to release the prey which is the inconsiderable source of energy.
In summary, while both small and large Venus Flytrap species use digestive enzymes for nutrient absorption, the large trap differs by showing the advanced skill to reopen and save their valuable enzymes for their next bigger prey.