Family Gryllidae.
Rentz & Su in 'A guide to crickets of Australia' (CSIRO, 2019) call this the 'Southern longtail' cricket. It is widely distributed in southern and eastern Australia, but may actually comprise several distinct but similar-looking species.
Eurepa marginipennis is listed in the following regions:
Canberra & Southern Tablelands | Southern Highlands | Albury, Wodonga | South Coast | New South Wales North Coast
Maps
ANBG Aranda Bushland Birrigai Black Mountain Bluetts Block (402, 403, 12, 11) Bruce Ridge Bruce Ridge to Gossan Hill Crace Grasslands Dryandra St Woodland Gossan Hill Hall Cemetery Hall Horse Paddocks Higgins Woodland Kowen Escarpment Lake Ginninderra Monga National Park Mongarlowe River Mount Ainslie Mount Painter Mundoonen Nature Reserve Piney Ridge Rugosa Sherwood Forest Tallaganda National ParkPlaces
Aranda, ACT Bruce, ACT Bungendore, NSW Evatt, ACT Hall, ACT Higgins, ACT O'Connor, ACT