Skip to page content
This is the Grooved Diving Beetle (Acilius sulcatus) and it reaches an impressive size of 16-18mm.
I have finally managed to make a photo of it upside down. You can see the 'peddle mechanism' of its legs which I think is interesting enough to share with you.
(More photos here: http://www.gardensafari.net/en_picpages/acilius_sulcatus.htm )