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 Glenbog State Forest Gossan Hill Hall Cemetery Hall Horse Paddocks Kowen Escarpment Lake Ginninderra Monga National Park Mongarlowe River Mount Ainslie Mount Painter Mundoonen Nature Reserve Penrose Piney Ridge Rugosa Sherwood Forest Tallaganda National Park Wingecarribee Local Government AreaPlaces
Aranda, ACT Bungendore, NSW Hall, ACT O'Connor, ACT Upper Pappinbarra, NSW