Assessment Rationale:

This species has a total area of occupancy under 10 km² with only one area where the species has been found alive. Like for L. calva, habitat has been subject to changing land-use practice, with footpath creation and changing vegetation, and as such the quality of the habitat has declined. It is therefore considered as Critically Endangered (CR)  B2ab(iii).

Geographic Range:

This species is endemic to the Madeiran islands; Wollaston (1878) only found this species on the north-east side of Madeira in Ribeira do Fayal. It has not been found in recent surveys, and hence the localities have not been confirmed. However, it is abundant in the fossil beds of Caniçal, suggesting it was once more widespread on Madeira (Cook et al.1993).

 

Population:

It has not been found in recent surveys, and hence the localities have not been confirmed.

Habitat and Ecology

This species is found under stones on steep grassy slopes, amongst Sempervivum on crags at high elevations and in the litter of ledges and at the base of perpendicular crags (Wollaston 1878).

Major Threat(s):

The treats to this species are unknown.

Conservation Actions

Further surveys are required to establish whether this species is extinct.