Sigaus homerensis is a grasshopper endemic to the southern South Island of New Zealand.

[1] S. homerensis is one of three known alpine grasshoppers found in Fiordland, the other species being Alpinacris tumidicauda and Sigaus takahe.

Known sites of S. homerensis are regularly swept clear of tall plants by avalanches, making these areas more sparsely vegetated than the surrounding.

This region receives high rainfall (about 8000 mm/year) coupled with the lowest sunshine hours in New Zealand (1400 to 1600 h/year).

New Zealand Acrididae are diurnal sun-baskers and require basking surface to become active for the day.