Rediscovery of a Malaysian Endemic Woodwasp, Eriotremex purpureipennis (Hymenoptera, Siricidae)

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Based on a newly acquired specimen, which is probably the third specimen ever recorded, Eriotremex purpureipennis (Westwood, 1874) is briefly redescribed and illustrated. The convex and medially longitudinally carinate precornal basin and the short and robust apical sheath are useful to distinguish E. purpureipennis from the closely resembling E. insignis (Smith, 1859).