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

Species Macrosiagon cruenta

Beetle - Macrosiagon cruenta Ripiphoridae - Macrosiagon ? - Macrosiagon cruenta Wedge-shaped beetle - Macrosiagon cruenta - male small Wedge-shaped Beetle - Macrosiagon? - Macrosiagon cruenta - female Macrosiagon cruenta? - Macrosiagon cruenta - female Macrosiagon? - Macrosiagon cruenta Texas - Beetle? - Macrosiagon cruenta Red-winged wedge beetle - Macrosiagon cruenta
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 Cucujiformia)
Superfamily Tenebrionoidea (Fungus, Bark, Darkling and Blister Beetles)
Family Ripiphoridae (Wedge-shaped Beetles)
Subfamily Ripiphorinae
Genus Macrosiagon
Species cruenta (Macrosiagon cruenta)
Explanation of Names
Macrosiagon cruenta (Germar 1824)
cruenta = 'bleeding, bloody'
5.0-8.0 mm(1)
VA-FL to SK-TX; Cuba, Mexico(1)(2)(3)
May-Sep at lower elevations in NC(4)
Life Cycle
Parasitize wasps (Tiphiidae, Scoliidae, Vespidae, Specidae)(5), attacks eumenids in twig and mud nests(6)
beetle emerging from Eumenes smithii nest:
Works Cited
1.Beetles of Eastern North America
Arthur V. Evans. 2014. Princeton University Press.
2. A distributional checklist of the beetles (Coleoptera) of Florida.
Peck & Thomas. 1998. Florida Department of Agriculture and Consumer Services, Gainesville. 180 pp.
3.Checklist of beetles (Coleoptera) of Canada and Alaska. Second edition
Bousquet Y., Bouchard P., Davies A.E., Sikes D.S. 2013. ZooKeys 360: 1–402.
4.Insects of North Carolina
C.S. Brimley. 1938. North Carolina Department of Agriculture.
5.Field Guide to Beetles of California
Arthur V. Evans and James N. Hogue. 2006. University of California Press.
6.The Wasps
Howard Ensign Evans, Mary Jane West Eberhard. 1970. University of Michigan Press.