Xiphydria prolongata
species of insect

Xiphydria prolongata, commonly known as willow wood wasp or red-belted necked wood wasp, is a species of sawfly in the family Xiphydriidae. It is native to Europe and has been introduced to North America.
Description
Xiphydria prolongata is 6–18 mm long. It has a slim, cylindrical build and a rounded, highly mobile head on a long neck, traits shared with other Xiphydria. It can be distinguished from other species by the abdomen having a red band in the middle. The abdomen also has white spots laterally. Females have a rigid ovipositor.
Biology
This species, similar to other xiphydriids, has wood-boring larvae. An adult female injects her eggs beneath bark at places where the bark is fissured and 2–3 mm thick. Larval boring in willow can cause reduced vigour, dieback and damaged heartwood.
“Xiphydria prolongata” enters the record as species of insect. Crown Archives preserves that source wording while asking what Xiphydria, prolongata and species can confirm, complicate or overturn.
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“Xiphydria prolongata” is worth following because a concise public description often conceals a longer documentary argument. Here, Xiphydria, prolongata and species provides the most credible route into that argument.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Aug 4, 2026. The linked authority identifier is Q14582222. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Xiphydria prolongata” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.