These flies are parasites of moth caterpillars.
Trigonospila sp. (genus) is listed in the following regions:
Canberra & Southern Tablelands | Southern Highlands | South Coast | Greater Sydney | Barwon South West | Wide Bay
Maps
ANBG ANBG South Annex Aranda Bushland Black Mountain Bluetts Block (402, 403, 12, 11) Bungonia National Park City Renewal Authority Area Denman Prospect 2 Estate Deferred Area (Block 12) Dryandra St Woodland Endeavour Reserve (Bombala) Gibraltar Pines Goulburn Mulwaree Council Haig Park Higgins Woodland Hughes Grassy Woodland McQuoids Hill Mount Ainslie Mount Majura Mount Painter Namadgi National Park Piney Ridge Red Hill to Yarralumla Creek Tidbinbilla Nature Reserve Wandiyali-Environa Conservation AreaPlaces
Aranda, ACT Braddon, ACT Brindabella, NSW Bungendore, NSW Florey, ACT Higgins, ACT Melba, ACT Watson, ACT Yaouk, NSW