Countries of Occurrence:
Spain - Canaries
Neubert, E., Cuttelod, A., Bilz, M. & Ward, J.
Facilitators / Compilers/s:
This species is endemic to south-eastern La Gomera in the area of San Sebastian. Its range is restricted and it is threatened by the extension of the city of San Sebastian. It is therefore considered as Near Threatened (NT), almost meeting criteria B.
This species is endemic to south-eastern La Gomera in the area of San Sebastian. H. quadricincta quadricincta is known from the lowlands and H. quadricincta subauctaWollaston, 1878 from higher elevations on the south-eastern slope of Cumbre. Neiber et al. (2011) found it from the same region (Las casetas and Lomo de las Nieves) and give detailed genetic analysis of these two specimens. Bank et al. (2002) features specimens from Alajeró. Also, Klaus Groh found several sites around San Sebastian. The extent of occurrence is estimated to be less than 60 km² and the extent of occurrence is thought to be less than 20 km².
The population is presumed to be stable.
This species is known from temperate shrubland areas (Piso basal).
The main threat to this species is the increased urbanisation of San Sebastian.
There are no conservation measures for this species.