Oriental wood borer Heterobostrychus aequilus

Adult beetle found in imported wood

There are many species of these woodborers, sometimes called false powder post beetles or auger borers. They are members of the group Bostrychidae, which range in size from 2-15mm.

Size: This is one of the largest at 15mm

Shape: Squarish

Colour: Black 

Antennae: Small with larger segments on the end. Not often visible

Distinguishing features: Head underneath, not visible from the top, thorax and wing cases with two large spikes

Larvae are pests of: starchy wood

Damage: Often extensive, with large quantities of fine, powdery frass.

Adults eat: Not known

Often found on: Imported, starchy (new) wood.

Oriental wood borer Heterobostrychus aequilus