Bristly fungus beetle

Systematic position. The bristly fungus beetle (Cis hispidus) is a member of the order Coleoptera and the family Ciidae. These beetles are highly specialized organisms that have evolved to inhabit the complex structures of wood-decaying fungi.

Crops damaged. This species does not damage live agricultural crops or healthy trees directly. Instead, it colonizes the fruiting bodies of various polypore fungi found on deciduous trees, including oak, beech, and birch, effectively acting as a consumer of fungal biomass within forest ecosystems.

Biology and life cycle. The life cycle of Cis hispidus is completed entirely within the fungus. Females lay eggs in the fungal tissue, where the emerging larvae feed and create extensive tunnel networks. The developmental rate is highly dependent on ambient temperature and the moisture content of the host fungus.

Character of damage and economic significance. The damage is characterized by the perforation of fungal fruiting bodies. While this activity is part of the natural decomposition process, high populations of these beetles can cause the premature collapse of fungal bodies, which may disrupt the spore dispersal process of the fungi.

Control measures. Standard chemical pesticides are generally not required or recommended for this species. Integrated management strategies focus on habitat hygiene:

• Removal and destruction of excessively decayed logs and debris.
• Regular monitoring of tree stands for fungal infections.
• Promotion of general forest health to mitigate the overgrowth of wood-decaying fungi.