Jumping thing

Jumping thing

Observation - Jumping thing - UK and Ireland. Description: Seen on a notebook, about 5mm long with two appendages at the back. It jumped vertically several times. Is it a springtail, a silverfish or what? Would be interested to know.

Seen on a notebook, about 5mm long with two appendages at the back. It jumped vertically several times. Is it a springtail, a silverfish or what? Would be interested to know.