Records are widely but sparsely distributed from Yorkshire southwards, including in the south-west, with no obvious clustering anywhere. The only putative Scottish record is from Orkney in 1832 and requires verification as an extreme outlier before it can be treated as present in Scotland. Low numbers of recent records make the calculation of EOO values problematic, but a drop from six to four locations in the last two decades (notable against a backdrop of an increase in overall sawfly recording) and an AOO of just 36 km2 leads to a status of Vulnerable under Criterion B2.