A species of longhorn beetle

Monochamus sartor

preview hoet 00036 monochamus sartor langhornbockTypical for most beetles is that they possess two differently arranged pairs of wings. The hard forewings are not used for flight, but must be raised in order to move the hind flight membranous wings. That can be well observed with a large beetle like this one.

This beetle lives dispersed - and unfortunately ever more rarely - in coniferous forests, in the alpine region up to the timber line. It flies on hot summer days. Its flight noise is rather loud and lets one think of a small helicopter. When landing, one can observe the complicated folding mechanism of its wings well. It takes some time, until the insect has completely folded up and shut its wings again.