European house borer images

Page last updated: Tuesday, 31 October 2017 - 11:01am

Please note: This content may be out of date and is currently under review.

EHB detection can be improved by viewing the range of images provided and becoming familiar with what to look out for around your property.

The appearance of EHB larvae and beetles may vary according to the circumstances in which they are discovered. The images provided, taken both in the laboratory and the natural environment, offer a number of views for comparison.

EHB Larvae

EHB larvae have distinctive mouth parts
EHB larvae have distinctive mouth parts      
EHB larvae tunnelling through pinewood
EHB larvae tunnelling through pinewood       
EHB larvae next to a five cent piece
EHB larvae next to a five cent piece        
Close-up of EHB larvae
Close-up of EHB larvae         
EHB create tunnels in pinewood
EHB create tunnels in pinewood          
EHB larvae behind glass demonstrate how larvae create long tunnels packed with frass
EHB larvae behind glass demonstrate how larvae create long tunnels packed with frass          

Adult EHB beetle

Male and female EHB beetles
Male and female EHB beetles next to a five cent piece.
EHB beetle front view
EHB beetle front view
EHB female beetles are larger than the male
EHB female beetles are larger than the male
EHB beetles can range in colour from blackish grey to brown tones
EHB beetles can range in colour from blackish grey to brown tones
A recently emerged EHB beetle
A recently emerged EHB beetle  

EHB eggs

EHB lay eggs in batches of around 200 in the cracks of seasoned pinewood
EHB lay eggs in batches of around 200 in the cracks of seasoned pinewood
Beetles lay eggs in wood cracks
Beetles lay eggs in wood cracks  

EHB Damage

Over time EHB can cause severe structural damage.  The surface of wooden beams show little of the damage occuring until it is too late.

Severe EHB damage to untreated pine roof beams
Severe EHB damage to untreated pine roof beams   
This section of wood shows how EHB tunnelling damages the structural integrity of roof beams
This section of wood shows how EHB tunnelling damages the structural integrity of roof beams    
Roof beam damage
Roof beam damage     

Signs of EHB infestation

EHB exit holes run with the wood grain
EHB exit holes run with the wood grain
EHB exit holes on a fallen pine tree
Multiple EHB exit holes on a fallen pine tree          
Multiple EHB exit holes on a pinewood beam
Multiple EHB exit holes on a pinewood beam           

Commonly mistaken insects

There are several species of insects found in Western Australia which are commonly mistaken from EHB.

The below insects are NOT European house borer.

Picture of a Longicorn beetle
Longicorn beetle
Picture of a Mole cricket
Mole cricket
A picture of a native jewel beetle specimen
Native jewel beetle
A photograph of a Click beetle
Click beetle
Photograph of three different sized Jewel beetles of differing colours
Jewel beetles
EHB next to a fifty cent piece and other insects often mistaken for EHB
EHB (circled in red) next to insects commonly mistaken for EHB.

 

Asian longhorned beetle
Asian longhorned beetle