Castiarina setifera Barker, new species (Figs 1 c, 2 e)

Type material: Holotype male, Mt Rufus, Lake St Clare, Tas., 20.iii.1997, J. Balderson & P.K. Christensen, SAMA I 21 713.

Size. Holotype, 17.0 x 5.5 mm. Female unknown.

Description. Colour: Head royal blue. Antennomeres 1–3 royal blue; 4–7 blue (rest missing). Pronotum royal blue laterally, black medially. Scutellum missing. Elytra dark blue with purple reflections and following markings: elongate yellow mark on each elytron from base to post­medially; pre­apical red mark extending along margin; very small red mark on margin beneath humeral callus on each elytron. Ventral surface and legs royal blue. Setae silver.

Shape & sculpture: Head, thorax, ventral surface and legs covered with long setae. Head closely punctured, short mouthparts. Antennomeres: 1–3 obconic; 4–7 triangular. Pronotum closely punctured, anterior margin projecting medially, basal margin almost straight posteriorly, sides extensively damaged. Scutellum missing. Elytra punctate­striate, intervals from before middle to apex convex, laterally angled outwards from base, rounded at humeral callus, faintly concave, rounded post­medially and narrowed to spineless apex, margin indented to suture. Ventral surface shallowly punctured. S7: truncate in male.

Aedeagus: Parameres parallel­sided from basal piece, widening before middle, rounded to apex. Penis sharp. Apophysis of basal piece short (Fig. 1 c).

Remarks. The unique holotype was picked up dead on a walking track and had been crushed. The image was digitally restored and the illustration made from the restoration. I am unable to match this species with any other.

Distribution. Vicinity of Lake St Clair, Tasmania.

Etymology. Named for its setose condition (seta; L., bristle).