Fungus Beetle

Fungus beetle is a general term covering several different beetles associated with damp, humid conditions where fungi, molds and mildew occur. The beetles are small reddish brown to black in colour and 2-3 mm long. 

Eggs are laid on food material such as poorly-seasoned green lumber, wet plaster and chalk board, moldy grains, etc. and the larvae develop in the molds. Development from egg to adult depends on temperature. Their life cycle can be completed in 25 to 36 days and up to five months and longer at lower temperatures. 

Fungus beetles are attracted to lights and feed on mold or mildews and are attracted to anything that is musty smelling. Moisture levels in new buildings will often attract these insects. They will be concentrated in areas of high humidity.