Pronotum is long mid-dorsally (double arrow), the posterior edge weakly concave (single arrow heads)

The pronotum is free (i.e. distinct) from scutum (dotted arrows) and reaches the tegula, the posterolateral apex rounded (‘pronotal lobe’).

Ventrally the apex appears double-edged, both rounded and acute.

Pair of lightly pigmented (i.e. thin?) plates either side of midline (arrows) project posteriorly from mesosternum and partially conceal the mesocoxae.

Bases of mid coxae partially concealed by mesosternal lobes. Fig. 42.32L, Tiphiidae*, mesosoma ventral, male. (Naumann, 1991)
(* most Australian genera in Tiphiidae at the time of Naumann’s work were subsequently elevated to the family Thynnidae.)

Antennal bases (broken arrows) very slightly obscured by small overhanging ridges (solid arrows).

Antennal bases (broken arrows) very slightly obscured by small overhanging ridges (solid arrows).

Arrows indicate location of torulus (antennal socket).

Extract from Thynnidae key in Brown 1993, page 180. (See associated text in next image)

Extract from Thynnidae key in Brown 1993, page 180. (See associated figure in next image)

Seven exposed tergites, consistent with male Thynnidae (females have just six). At the apex of the metasoma is a simple cup-like structure (arrow) without visible spines, hooks or other projections.

Arrow showing apex, which appears to be the epipygium

Arrows showing epipygium/T7

Arrows showing epipygium/T7

The first submarginal cell shows a trace of a spur vein, although it is not cuticularised and therefore less obvious than in many Thynninae.

Overall length ~10mm

Forewing length ~7mm

Forewing vein 2m-cu is received distally to 2r-m (which contrasts with the arrangement in Diamminae … see this iNaturalist sighting for illustration in Diamma bicolor male)

Flagellum with 11 segments (‘flagellomeres’) = male