Observations of the parasitism of Phloeoborus punctatorugosus (Curculionidae: Scolytinae) by Apechoneura longicauda (Ichneumonidae: Labeninae) are presented. This is the first host record for a species of Apechoneura. Based on the very long and flexible ovipositor of A. longicauda, it was previously suggested that this and closely related species do not drill into wood, but rather thread the ovipositor through host tunnels. We provide field observations that support this suggestion.