Micropeplus is easily recognized due to its nine segmented antennae with an enlarged terminal segment, forming a club (Fig. 1.3.1). The body is elongate oval in shape and the entire dorsal surface is covered with a variety of ridges (Fig. 1.3.1). The genus is widely distributed in North America.

In ECAS, species of Micropeplus can be sifted from leaf litter on the forest floor, in boggy areas (Campbell 1968), or along streams (Campbell 1973). They sometimes occur on carrion and in beaver lodges (Campbell, 1968). Sweeping field vegetation in the evening often yields specimens (Campbell 1968) that are probably dispersing. The species of Micropeplus are mycophagous, feeding on the spores and conidia of moulds and other fungi (Hinton and Stephens 1942; Thayer 2005).