A small species, covered in a dense array of whitish setae patches, with the frons deeply depressed between the eyes, and an unusual tripartite aedeagus. Elytra black with golden reflections about the scutellum, pronotum with deep blue reflections, and scutellum bronze-gold.

Named for its distinctive tripartite aedeagus which has a pair of brush-tipped accessory arms arising from near its base.

The first SA record is an early Blackburn collection from Quorn (in the southern Flinders Ranges), held in the SA Museum and cited by Barker, 2001.

It appears not to have been recorded again in SA until December 2008 when I collected a single specimen in the Barossa Range.

More recently, specimens were collected from the Adelaide Parklands by A. and P. Stolarski, in late November 2023 and in early February 2024.

The holotype and 'allotype' from Pilliga East Forest in NSW were collected from Dodonaea sp. in mid-September. The paratype collections are from a wide variety of adult hosts including Acacia longifolia (which also occurs in SA), as well as A. linifolia, Leptospermum, Baeckea, Dodonaea, Jacksonia, and flowers of Bursaria.

In SA, the single adult collected in the Barossa Range was obtained by sweeping Sheoak (Allocasuarina verticillata) foliage.

The third SA collection was made from general sweeping of a variety of plants in an area revegetated with local native species. However, a second specimen was obtained later from the same area by sweeping foliage of Sticky Hopbush, Dodonaea viscosa ssp. spatulata. Evidence pointing to Dodonaea being a larval host is mounting.