Fulling Mill Croston's Bung Buzzer Olive - Barbless (Red)

The quiet one of the four

The quiet one of the four. Olive matches the paler pupae that come out of weedy, fertile water, and it is the colour to swap to when the water is clear, the light is high and a black buzzer is being looked at and left. Nothing about it is loud. Hang it static under the bung and give it longer than feels reasonable before you decide it is not working.