Agathidium angulare is a species of round fungus beetle. They are found in both the United States and Canada. They are known by the common name "angulated round fungus beetle."
Description Agathidium angulare beetles are relatively large compared to other beetles of their genus, reaching approximately 2.5mm in length. They have dark red heads, red pronotum, elytra, and venter, and a yellow mesosternum. Their antennae, palpi, and legs are brownish in color. Adult males have a long mandibular horn.
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