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''Sigaus homerensis'' is a grashopper endemic to southern South Island of New Zealand. It is only known from Fiordland, in three isolated populations. ==Distribution and habitat== The distribution of ''S. homerensis'' is not known to overlap with that of any other grasshopper species and is known only from the Earl Mountains.〔Morris, S.J. 2003: Two new species of ''Sigaus'' from Fiordland, New Zealand (Orthoptera: Acrididae). ''New Zealand entomologist'', 26: 65–74. (PDF )〕 ''Sigaus homerensis'' is only one of three known alpine grasshoppers that is found in Fiordland, the other species are 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 . File:Sighom2.JPG|A overview of the ''S. homerensis'' habitat. File:Sighom3.jpg|A closeup view of the ''S. homerensis'' habitat. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sigaus homerensis」の詳細全文を読む スポンサード リンク
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