Wharfborer Nacerdes melanura
Adult beetle
Size: 10-15mm
Shape: long beetle shape
Colour: dark brown, sometimes with black legs
Antennae: long
Distinguishing features: large, elongate beetle, superficially like a longhorn beetle. The wingcases have faint longitudinal ridges and dark tips.
Adults eat: very little
Larvae eat: waterlogged wood.
Damage is: tunnels, large exit holes
Other info: Wharf borers are found in waterlogged wood, in canals and non-saline parts of rivers. The adults fly some distance from the source. They are frequently confused with Soldier beetles, Rhagonycha, which are reddish brown and commonly found mating on cow parsley.
Size: 10-15mm
Shape: long beetle shape
Colour: dark brown, sometimes with black legs
Antennae: long
Distinguishing features: large, elongate beetle, superficially like a longhorn beetle. The wingcases have faint longitudinal ridges and dark tips.
Adults eat: very little
Larvae eat: waterlogged wood.
Damage is: tunnels, large exit holes
Other info: Wharf borers are found in waterlogged wood, in canals and non-saline parts of rivers. The adults fly some distance from the source. They are frequently confused with Soldier beetles, Rhagonycha, which are reddish brown and commonly found mating on cow parsley.
Wharfborer Nacerdes melanura
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