Lamyctes emarginatus

Most references don't include a vernacular name for this species but at least one site calls it One-eyed Centipede which seems logical.

These was keyed using the AIDGAP key by Barber. One was already dead when retrieved from the pitfall trap and the other nearly so, so neither presented themselves well for a photo shoot (but at least they didn't run away). When I examined them both were dry and I couldn't straighten them without breaking them so don't have an accurate measurement of their length: the first was 7.1mm (excluding appendages) in its slightly curled state so I'd guess it was no more than 8mm or so in life. I noted from the BMIG website that there is a second Lamyctes species in the UK now and attempted to eliminate this by counting the antennomeres. That proved harder than I thought (not least because both only had one complete antenna): I'm pretty sure they both had more than 25 antennomeres (the best one seemed to be 26 or 27 depending on whether it had one long but slightly broken apical antennomere or two shorter ones). However, both had two pairs of three forcipular coxosternite teeth which seems to rule out the very unlikely africanus.

Lamyctes emarginatus after head (in side view, front to right), forcipular coxosternite, hind leg and hind tarsal claw, Wendling Beck Environment Project (Norfolk, UK), 25th to 26th August 2025

second Lamyctes emarginatus after head (in side view, front to right), forcipular coxosternite, hind leg and hind tarsal claw, Wendling Beck Environment Project (Norfolk, UK), 25th to 26th August 2025