Dorcadion wagneri is a species of beetle in the family Cerambycidae. It was described by Küster in 1846. It is known from Turkey, Iran, and Armenia.^[1]Wagner's longhorn beetle is characterized by its elongated body, typically measuring around 15 to 20 millimeters in length. The adults have a black or dark brown coloration with distinctive yellowish markings on their elytra (wing covers). These markings can vary in shape and intensity, but usually consist of bands, spots, or lines. The larvae of Dorcadion wagneri develop within the wood of various deciduous trees, such as oak, beech, and other broad-leaved species. They feed on the inner layers of the wood, causing damage to the trees. The larvae can spend several years in the wood before pupating and emerging as adults. Wagner's longhorn beetle is typically active during the summer months, from June to August. The adults can be found in meadows, forest edges, and other open habitats, where they feed on nectar and pollen from flowers. They are often observed on plants such as thistles, umbellifers, and legumes.

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