Rugilus

Rugilus is a genus of beetles belonging to the family Staphylinidae, also known as rove beetles. These beetles are generally small in size, often elongated and cylindrical in shape, and are found in a variety of habitats including leaf litter, soil, and under decaying organic matter.

Rove beetles in the Rugilus genus are characterized by their shortened elytra (wing covers), which leave several abdominal segments exposed. This feature is common among Staphylinidae and allows for greater flexibility. They are typically predaceous, feeding on other small insects and invertebrates.

Identification to the species level within Rugilus often requires microscopic examination of specific morphological features, such as the structure of the antennae, mouthparts, and genitalia. As such, accurate identification typically necessitates expert knowledge.

The distribution of Rugilus species is widespread, with representatives found on multiple continents. Their specific ecological roles depend on the species and the habitat they occupy. They play a part in nutrient cycling and contribute to the regulation of invertebrate populations.