Familia	Cerambycidae (Latreille, 1802)
Subfamilia	Prioninae (Latreille, 1802)
Tribus	Prionini (Latreille, 1804)
Genus	Orthosoma (Audinet-Serville, 1832)
Subgenus
Species	brunneum (Forster, 1771)
Synonyms	unicolor (Drury, 1773) pennsylvanicus (Degeer, 1775) cylindricus (Fabricius, 1781) cylindroides (Gmelin, 1790) sulcatus (Olivier, 1795) amplians (Casey, 1912) spadix (Casey, 1912)
other names	Cerambyx brunneus (Forster, 1771) Cerambyx unicolor (Drury, 1773) Cerambyx pennsylvanicus (Degeer, 1775) Prionus cylindricus (Fabricius, 1781) Prionus cylindroides (Gmelin, 1790) Lamia brunnea (Olivier, 1792) Prionus sulcatus (Olivier, 1795) Orthosoma cylindricum (Audinet-Serville, 1832) Prionus Orthosoma pennsylvanicus (Drury & Westwood, 1837) Orthosoma Orthosoma unicolor (Castelnau, 1840) Prionus unicolor (Harris, 1841) Orthosoma unicolor (LeConte, 1852) Orthosoma pennsylvanicum (White, 1853) Prionus pennsylvanicus (Emmons, 1854) Orthosoma pensylvanicum (Thomson, 1864) Derobrachus Orthosoma brunneus (Lameere, 1911) Orthosoma amplians (Casey, 1912) Orthosoma spadix (Casey, 1912) Orthosoma brunneum amplians (Casey, 1924) Derobrachus brunneus (Kirk & Knull, 1926) Orthosoma Orthosoma brunneus (Goldman, 1933) Derobrachus digueti (Monné, 1995)
Lifezones:	West hemisphere
Body length:
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Distribution:	United States (E), Canada (SE)
Occurrence:	I II III IV V VI VII VIII IX X XI XII