See text Pharmacus is a genus of cave wētā in the family Rhaphidophoridae, endemic to New Zealand.

[2] Pharmacus has a geographical range that extends from Nelson south to central Otago and Fiordland.

[3] All species exhibit dark brown to black pigmentation of the body and legs.

[3] For example, Pharmacus montanus is known as the Mount Cook flea because of its habit of leaping out of rock crevices on to mountain climbers.

[1] Pharmacus may also feed on the rich red algal growth that coats snow-fields during the summer season.

[1] Pharmacus are alpine specialists and are found throughout the mountain ranges of New Zealand's South Island.