About Hygrobia hermanni (Fabricius, 1775)
Hygrobia hermanni, commonly called the screech beetle, is a beetle species that belongs to the family Hygrobiidae. This species is native to Southern and Western Europe and North Africa, where it lives in stagnant, muddy bodies of water. It is capable of producing a strident grating noise, which is how it got the common name screech beetle. This sound is created when the sharp edge of the 7th abdominal tergite rubs against a subapical median file located on the undersurface of the elytra.