This beetle family contains around 500 species, including several important grain storage pests. Many species are fungal feeders and live under the bark of trees.
The adults are flat, small to medium sized and often with teeth along the lateral margin of the pronotum. They have 5 trasal segments on all legs. The 3rd segment is lobed beneath and the 4th shorter than the 1st. Many have clubbed antennae.
For details see the respective page in Wikipedia.
The following genera and individual species are currently entered under Silvanidae: