Hygrobia hermanni

Hygrobia hermanni
	Hygrobia hermanni Size: 8,5-11 mm
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Family:	Hygrobiidae
Genus:	Hygrobia
Species:	H. hermanni
Binomial name
	Hygrobia hermanni; (Fabricius, 1775) [1]

Hygrobia hermanni the screech beetle is a species of beetle in family Hygrobiidae. It is found in the Palearctic [2] (South Europe, West Europa, North Africa [3] ) and is found in stagnant and muddy waters. It able to make a strident grating noise hence the name screech beetle. The sound is produced when the sharp edge of the 7th abdominal tergite is rubbed against a subapical median file on the elytral undersurface.

References

Fabricius, J.C. 1775: Systema Entomologiae, sistens insectorum classes, ordines, genera, species... Flensburgh and Leipzig, Library Kortii.
Joy, N 1932 A Practical Handbook of British Beetles
Fauna Europaea

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[1] Fabricius, J.C. 1775: Systema Entomologiae, sistens insectorum classes, ordines, genera, species... Flensburgh and Leipzig, Library Kortii.

[2] Joy, N 1932 A Practical Handbook of British Beetles

[3] Fauna Europaea