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Mystery woodlouse

Observed: 9th June 2013 By: Joe BottingInvertebrates expert

4 mm long, from dry moss at the base of oak in hanging woodland. No gills (at least, none obvious). Antennal flagellum with two sections (basal one short) - see second photo. Surface covered by tiny spines, and weak transverse ridge on pereon segments (cf. Porcellionides cingendus, which I'm sure it isn't).
Any ideas..?

Species interactions

No interactions present.


Joe Botting's picture


Thanks for that, Andy - and I thought I had something odd there. There were several of the same size in a small area , so I foolishly assumed it wasn't just juveniles of one of the big ones. I had no idea this species has spines as juveniles, as well as the normal surface bumps.