Distribution; world
South westernmost "Europe" The species is endemic to the Canary Islands and is found on Tenerife (subspecies arctifrons), Hierro (subspecies glandarium), La Palma (subspecies glandarium), and Gran Canaria (subspecies optatum) (Ebmer 1974, 1993, Warncke 1975, Hohmann et al. 1993):
ES-IC