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Camponotus vicinus
Bicolored Carpenter Ant
Camponotus vicinus is a large, conspicuous carpenter ant distributed across western North America from Alaska to Mexico and east to Texas and Manitoba. Unlike many carpenter ants that nest in wood, this species typically nests in soil under stones and other objects, though it also uses fallen, decomposing logs in higher elevation conifer forests. It is a prominent scavenger and predator in terrestrial ecosystems and is one of the most abundant ground-dwelling arthropods in California's higher elevation conifer forests. The species belongs to a genetically diverse species complex with cryptic diversity, including localized populations of conservation interest such as an undescribed species endemic to the Channel Islands.