Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Margarinotus merdarius

Histeridae - Margarinotus merdarius
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Staphyliniformia)
Superfamily Hydrophiloidea (Water Scavenger and Clown Beetles)
Family Histeridae (Clown Beetles)
Subfamily Histerinae
Tribe Histerini
Genus Margarinotus
No Taxon (subgenus Ptomister)
Species merdarius (Margarinotus merdarius)
Explanation of Names
Margarinotus merdarius (Hoffmann 1803)
6.0-8.5 mm(1)
native to Europe, adventive in our area and established in the northeast (New England to MB and IN) and along the Pacific (BC-CA)(2)(3)
dung, poultry houses; in Europe, primarily in bird nests, also in dung, fungi, and decaying plant material(2)(3); synanthropic species associated with stables, hen houses, mills, granaries, and other animal/storage facilities(1)
earliest record in our area: 1845(4)
Works Cited
1.The insects and arachnids of Canada. Part 24. Coleoptera Histeridae
Bousquet Y., Laplante S. 2006. NRC Research press, Ottawa. 485 pp.
2.The Beetles of Northeastern North America, Vol. 1 and 2.
Downie, N.M., and R.H. Arnett. 1996. The Sandhill Crane Press, Gainesville, FL.
3.A review of California Margarinotus Marseul (Coleoptera:Histeridae: Histerinae:Histerini), with descriptions of two new species
Caterino M.S. 2010. The Coleopterists Bulletin 64: 1–12.
4.Contributions to the knowledge of Atlantic Canadian Histeridae (Coleoptera)
C.G. Majka. 2008. ZooKeys 2: 189-202.