Scydmaeninae are a subfamily of small beetles, commonly called ant-like stone beetles or scydmaenines. These beetles occur worldwide, and the subfamily includes some 4,500 species in about 80 genera. Established as a family, they were reduced in status to a subfamily of Staphylinidae in 2009 
|Ant-like stone beetles|
Many scydmaenine species have a narrowing between head and thorax and thorax and abdomen, resulting in a passing resemblance to ants that inspires their common name. The largest measure just 3 millimeters long, while some very small species only reach half a millimeter in length. Scydmaenids typically live in leaf litter and rotting logs in forests, preferring moist habitats. A number of types are known to feed on oribatid mites, using "hole scraping" and "cutting" techniques to get through the mite's hard shells.
- Elacatophora Schaufuss, 1884 (including Borneosabahia)
- Euconnus Thomson, 1859
- Horaeomorphus Schaufuss, 1889
- Loeblites Franz, 1986
- Microscydmus Saulcy & Croissandeau, 1893
- Parastenichnaphes Franz, 1984
- Penicillidmus Jałoszyński, 2014
- Protoscydmus Franz, 1992
- Siamites Franz, 1989
- Stenichnus Thomson, 1859
- Synidcus Motschulsky, 1851
- Grebennikov, V.V. and Newton, A.F. 2009. Good-bye Scydmaenidae: or why the ant-like stone beetles should become megadiverse Staphylinidae sensu latissimo (Coleoptera). European Journal of Entomology 106: 275-301.
- Jałoszyński, Paweł (February 2019). "Three new species of Penicillidmus in the Philippines (Coleoptera, Staphylinidae, Scydmaeninae)". Zootaxa. Magnolia Press. 4563 (1). doi:10.11646/zootaxa.4563.1.11. ISSN 1175-5334. Retrieved 10 July 2019.
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