Beneath the hemelytra is another pair of wings, which allows these large insects to fly and migrate from one water surface to another if conditions become unsatisfactory.

At the end of the abdomen, there are two tubular spiracles that serve to absorb oxygen from the surface, while the animal is immersed with its whole body and is waiting for prey.

[3] Lethocerus patruelis inhabits a large territory, from southeastern Europe and the south of the Balkan Peninsula through Asia Minor, Pakistan, India all the way to Myanmar.

Due to the recent climate changes, the progress of this species in the direction of the north on the territory of the Balkan Peninsula has been noticed.

When it catches prey, the giant water bug injects its saliva rich in digestive enzymes, and then sucks the dissolved tissue into the liquid with its rostrum.