Haplophthalmus danicus Budde-Lund, 1880

Common name

Spurred Ridgeback


GB IUCN status: Least Concern

ID Difficulty



This small white to buff species (to 4mm) has eyes composed of a single black ocellus.  As with all trichoniscid woodlice the antennal fagellum comprises a tapered cone (of indistinct segments) bearing a terminal bristle. The longitudinal dorsal ridges, which are characteristic of the genus, are much less distinct than seen in H.mengii and H.montivagus, and it also lacks the pair of prominent projections on the third pleonite that is characteristic of those two species. Characteristically, Haplophthalmus species have a continuous body outline (all other trichoniscid woodlice have a stepped body outline).


J.P. Richards
J.P. Richards
Keith Lugg
J.P. Richards
J.P. Richards
Warren Maguire
Warren Maguire
Warren Maguire
Keith Lugg

Distribution and Habitat









BRC Code