This species has a wider range than its closer relative linearis, with records north to Perthshire. Assessments against all criteria give no reason to consider it threatened, although there has been a small decline in AOO in recent years.

Distributed north to Yorkshire although more scarce in the north-west. The foodplant tends to be found in drier habitats than that of the very similar P. xanthostoma. Assessments against all criteria give no reason to consider it threatened, although there has been a moderate decline in AOO in recent years.

Records are sparsely but widely distributed around southern England, north to Cheshire, with a single old record from south Wales. The species is still being recorded occasionally to the present but this seems to be a species that is present at low density and/or very unobtrusive. Assessments against all criteria give no reason to consider it threatened, although this is admittedly based on low numbers of records in total.

Benson (1951) said this species was found south-east of the Wash/Severn line although there have been several more recent records in northern England, plus single records in Scotland and Wales. The majority of records remain in the south, however, including a fair number in Devon and Cornwall. It feels likely that this species is probably very overlooked but at present, assessments against all criteria give no reason to consider it threatened.

Common, occurring throughout much of England north to southern Cumbria. More sparsely distributed in Wales and south-west England, and no records from Scotland to date. Assessments against all criteria give no reason to consider it threatened.

Common, sometimes abundant, throughout much of England south-east of a line between the Tees and the Severn. More sparsely distributed in Wales and south-west England, and no records from Scotland to date. Assessments against all criteria give no reason to consider it threatened.

Quite widespread as far north as Yorkshire, although decidedly local in eastern areas, the south-west and much of Wales. Benson (1951) was aware of only a few records, but there has been a steady accumulation since then. Assessments against all criteria give no reason to consider it threatened.

Perhaps the most widespread cephid in Britain, with records as far north as the Moray Firth. Assessments against all criteria give no reason to consider it threatened.

Widespread from Yorkshire southwards, with a few records also north to Fife. Assessments against all criteria give no reason to consider it threatened.

Benson (1951) felt there were two populations: a native one in the Caledonian pine forests and a more southern population associated with more recently established conifers. However, the distribution now suggests no differentiation would be possible and the species can be encountered anywhere in Britain; it is one of the few sawflies recorded on Shetland for example. Undoubtedly overly well recorded in comparison with most species as a result of its striking appearance; many records originate from interested non-specialists submitting photos to online systems. Assessments against all criteria give no reason to consider it threatened.