Strange Bug

Strange Bug

Observation - Strange Bug - UK and Ireland. Description: Any ideas what this could be? Spotted following flooding in Cork City (Ireland). Guess to be 3-4 cms long. Twin bifurcated structure to rear may aid ID.

Any ideas what this could be? Spotted following flooding in Cork City (Ireland). Guess to be 3-4 cms long. Twin bifurcated structure to rear may aid ID.