Tetragonitidae

Tetragonitidae is a family of small, often minute, beetles belonging to the superfamily Cucujoidea. They are characterized by their elongated, oval-shaped bodies and are typically found in decaying plant material, such as fallen leaves and wood. The family is cosmopolitan in distribution, with species occurring in various habitats across the world.

The larvae of Tetragonitidae are known for their unique feeding habits. They are often associated with fungi and are considered mycofaunistic, meaning they live in or on fungi. This relationship is mutualistic, as the larvae provide nutrients to the fungi while the fungi provide a suitable habitat and food source.

The family Tetragonitidae is divided into several genera, with the most well-known being Tetragonita. This genus includes species such as Tetragonita viridis, which is commonly found in Europe and North America. The adults of Tetragonita are small, greenish beetles with a distinctive pattern on their elytra.

Despite their small size and often overlooked nature, Tetragonitidae play an important role in the ecosystem by contributing to the decomposition of organic matter and by serving as a food source for various predators. Their unique biology and ecology make them an interesting subject for further study.