''Ropalopus sanguinicollis'' is a species of

long-horned beetle The longhorn beetles (Cerambycidae), also known as long-horned or longicorns, are a large family of beetles, with over 35,000 species described. Most species are characterized by extremely long antennae, which are often as long as or longer than ...

in the family Cerambycidae. It is found in the northeastern United States and southern Canada.

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