Abstract
A new genus of eumolpine chrysomelid is described from the Three Kings Islands, New Zealand: Tyrannomolpus rex gen. nov., sp. nov. Tyrannomolpus rex is the largest endemic chrysomelid species from New Zealand, and most closely resembles members of the endemic New Zealand genus Pilacolaspis Sharp. A key to genera of New Zealand Eumolpinae is provided.
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