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Genus Monarthrum

Huge Pronotum! - Monarthrum fasciatum Bark Beetle - Monarthrum fasciatum Scolytinae - Monarthrum mali Monarthrum mali - female Monarthrum? - Monarthrum fasciatum Apple Wood Stainer - Monarthrum mali Monarthrum dentigerum Monarthrum scutellare - male
Classification
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 Curculionoidea (Snout and Bark Beetles)
Family Curculionidae (Snout and Bark Beetles)
Subfamily Scolytinae (Bark and Ambrosia Beetles)
Tribe Scolytini (Typical Bark Beetles)
Subtribe Corthylina
Genus Monarthrum
Explanation of Names
Monarthrum Kirsch 1866
'one-segmented' (refers to the antennal club)
Numbers
5 spp. in our area, >130 total(1)
Size
1.4–4.8 mm(1)
Range
US to Argentina(1); in our area, 2 spp. are chiefly eastern (M. fasciatum MA-WI-IA-TX-FL, Mexico; M. mali, ME-ON-MN-IA-TX-FL, BC, CA, Mexico(2)); other 3, western(3)
Food
Attack logs and boles of dying hardwoods, esp. oaks(3)
Internet References
Works Cited
1.Mercado J.E. (2011) Bark beetle genera of the United States
2.Atkinson T.H. (200_-2014) Bark and ambrosia beetles
3.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.