New Zealand Status: Endemic
Conservation Status: Unknown
Psepholax sulcatus is a pit-boring weevil. From outside the bark of a fallen tree or other decaying wood, the female chews a 20mm long tunnel the width of her body, then lays her eggs. The tunnel is then lengthened for another cluster of eggs, and so on. The larvae radiate from those points and eventually pupate. The new adults leave the surface peppered with their circular emergence holes.
Psepholax sulcatus utilise wood that is degrading but still sound, that is, before the wood is invaded by fungi.
© Geografpix Photography, Steve Reader