Aulacia is a genus of leaf beetles in the subfamily Eumolpinae. It is distributed in Malaysia, Indonesia and the Philippines. It is closely related to the genera Colaspoides and Aulacioides.

Species Aulacia bicoloricollis (Medvedev & Romantsov, 2014) – Borneo (Sabah) Aulacia bipustulata Baly, 1867 – Borneo (Sabah, Sarawak) Aulacia brunnea Jacoby, 1894 – Malay Peninsula, Sumatra Aulacia cechovskyi Medvedev, 2016 – Malay Peninsula Aulacia cyaneipennis (Medvedev, 2010) – Borneo (Sabah) Aulacia diversa Baly, 1867 – Singapore, Malay Peninsula Aulacia femorata Baly, 1867 – Borneo (Sabah, Sarawak) Aulacia flavifrons Jacoby, 1896 – Sumatra Aulacia fulva Medvedev, 2004 – Malay Peninsula Aulacia fulviceps Baly, 1867 – Borneo (Sabah, Sarawak) Aulacia fulvicollis (Jacoby, 1899) – Sumatra Aulacia guskovae Romantsov, 2024 – Singapore Aulacia limbipennis Romantsov, 2024 – Borneo (Sabah) Aulacia longicostata Romantsov, 2024 – Borneo (Sabah) Aulacia minuta (Medvedev, 1995) – Philippines (Palawan) Aulacia montana Takizawa, 2017 – Borneo (Sabah) Aulacia moseykoi Romantsov, 2024 – Borneo (Sabah) Aulacia nigella (Weise, 1922) – Philippines (Luzon, Mindoro) Aulacia ornata Jacoby, 1896 – Sumatra Aulacia riedeli Medvedev, 2004 – Borneo (Sabah)

Species transferred to Aulacioides: Aulacia laeta Medvedev, 2004 – Malay Peninsula

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