Sigaus homerensis
Sigaus homerensis is a grasshopper endemic to the southern South Island of New Zealand. It is known only from three isolated populations in Fiordland. Distribution and habitat. The distribution of "S. homerensis" is not known to overlap with that of any other grasshopper species and it is known only from the Earl Mountains. "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. Similar  terrain and vegetation is found outside the known distribution, however, "S. homerensis" are not found in these areas. A possible explanation of this could be associated with avalanches, vegetation height and sunshine hours. This region receives high rainfall (about 8000 mm/year) coupled with the lowest sunshine hours in New Zealand (1400 to 1600 h/year). It appears that these small cleared areas are better for "S. homerensis" than avalanche-free areas with their taller vegetation. New Zealand Acrididae are diurnal sun-baskers and require basking surface to become active for the day. "S. homerensis" prefer altitudes between , however, it  can be found as low as and as high as . Species description. The wings on "S. homerensis" are micropterous (small wings) between making this species flightless like most of New Zealand grasshoppers. Male body length ; Female body length . Polymorphism. Two colour morphs are known for adults "S. homerensis", 'Drab gold' and 'Dark blue-grey'. Approximately two-thirds of the adults "S. homerensis" are of the 'Drab Gold' colour morph.