Similar to the Grapevine Moth (P. glycinae) but has different wing markings. See:
http://www1.ala.org.au/gallery2/main.php?g2_itemId=24101
The larva feeds on Epilobium and Oenothera.
Phalaenoides tristifica is listed in the following regions:
Canberra & Southern Tablelands | Southern Highlands | Grampians
Maps
ANBG Aranda Bushland Bimberi Nature Reserve Black Flat at Corrowong Bluetts Block (402, 403, 12, 11) Bruce Ridge Budjan Galindji (Franklin Grassland) Reserve Callum Brae City Renewal Authority Area Conder Community Wetlands Cotter Reserve Emu Creek Fadden Hills Pond Flea Bog Flat to Emu Creek Corridor Genoplesium vernale target area Gibraltar Pines Gigerline Nature Reserve Googong Foreshore Googong Reservoir Gordon Pond Illilanga & Baroona Jerrabomberra Wetlands Kama Kambah Pool Kosciuszko National Park Lake Burley Griffin West Lake Ginninderra Lions Youth Haven - Westwood Farm A.C.T. Lower Cotter Catchment Lyneham Wetland Maragle State Forest MichaelBedingfied's Home Garden Molonglo River Reserve Mongarlowe River Mount Ainslie to Black Mountain Mount Majura Mt Holland Mulligans Flat Namadgi National Park National Arboretum Forests Pine Island to Point Hut Piney Ridge Point Hut to Tharwa Rob Roy Range Sth Tablelands Ecosystem Park Stony Creek Stranger Pond Sullivans Creek, Lyneham South The Pinnacle The Tops at Nurenmerenmong Tidbinbilla Nature Reserve Urambi Hills Uriarra Recreation Reserve Wandiyali-Environa Conservation Area West Belconnen PondPlaces
Bonython, ACT Booth, ACT Braidwood, NSW Brindabella, NSW Bungendore, NSW Cotter River, ACT Googong, NSW Greenway, ACT Jerrabomberra, NSW Michelago, NSW Mongarlowe, NSW Mount Clear, ACT Nimmitabel, NSW O'Connor, ACT Rendezvous Creek, ACT Strathnairn, ACT Tharwa, ACT The Angle, NSW Wallaroo, NSW