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Extension > Garden > Diagnose a problem > What insect is this? > Insects found indoors > Winged Insects - 1/2 inch and greater > Wood wasps

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Wood wasps

Xiphydriidae

Jeff Hahn, University of Minnesota


Size: 1/2 - 3/4 inch long

Description: Cylindrically shaped insects; generally dark-colored but can also have white, yellow, or red markings; they have a round, distinct head, often with a noticeable neck between the head and the thorax; females possess a conspicuous ovipositor.

Where/When: Occasionally found indoors, primarily in the winter. Wood wasps are associated with wood, especially firewood.

Significance: They are harmless to people and do not re-infest wood or otherwise damage property; they are just a nuisance.

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