Scape considerably longer ventrally than dorsally. Only slightly emarginate laterally (dotted arrow).

Forewing vein 3-CU1 not markedly narrowed posteriorly and not narrower than vein CU1b.
1st subdiscal cell evenly setose.
Vein 2-1A not strongly curved or angled.

Scape not angularly narrowed basally (i.e. not petiolate).

Four thickened setae at apex of C+SC+R. Note also, a single slightly thickened bristle sub-apically (dotted arrow).

Four thickened setae at apex of hind wing vein C+SR+R.

Claw simple, not bifurcate.

1st subdiscal cell 1.8 times longer than wide.
Vein r 0.4 times length of vein m-cu

r-m vein largely sclerotized, with 2 distinct bullae.

1-SR+M curved/bent posteriorly after arising from 1-SR.
Angle between veins 1-SR and C+SC+R approximately 60 degrees (yellow).
See inset for comparison (Fig. 114, p. 59 in Quicke, 1987), showing Stenobracon, and illustrating method used for estimating the angle. Note that in Stenobracon, the angle is less than 50 degrees.

Ovipositor shorter than forewing.
Ovipositor length (the part extending beyond apex of metasoma) = 9mm.
Forewing length = nearly 10mm.

Small, pre-apical, dorsal bump (‘nodus’) (green arrow).
Series of ventral serrations (white arrows).
Note: the pre-apical nodus is so small that I find it a bit unconvincing. However, the alternative in the key leads to Vipiellus (& it’s not that) and Iphiaulax. Quicke (1991) describes the ovipositor apex of Iphiaulax as “without distinct preapical ventral serrations” (p. 65) … so I conclude that the tiny bump at the green arrow (above), is indeed a ‘pre-apical nodus’.

Ventral serrations are more apparent in this image.

Moderately elongate, smooth and shiny.

3rd metasomal tergite 2.16 times wider than minimally long.

Pair of posteriorly diverging, sub-lateral grooves (dotted green arrows).
Well-developed pair of posteriorly converging grooves (solid white arrows) defining a mid-basal triangular are which almost reaches the posterior margin of the tergite (see Fig. 220).

Pair of posteriorly diverging, sub-lateral grooves (dotted green arrows).
Well-developed pair of posteriorly converging grooves (solid white arrow) defining a mid-basal triangular are which almost reaches the posterior margin of the tergite (see Fig. 220).
Suture between T2 and T3 well-defined, but not obviously crenulate.
T3 without antero-lateral areas (see Fig. 239).

Lateral margins of the sclerotized part of the 2nd metasomal tergite (arrows) concave behind the spiracles (see Fig. 239).

Lateral margins of the sclerotized part of the 2nd metasomal tergite (arrow) concave behind the spiracles (see Fig. 239).

Forewing vein cu-a interstitial or nearly so.
Based on the couplet, I interpret ‘interstitial’ to mean in line with 1-M, as the other option is ‘post-furcal’.

Hypopygium sharply pointed.

Hypopygium sharply pointed.

Join between T2 and T3 (arrows) is narrow, shallow and smooth. It is also sinuous, distinctly curved anteriorly in the middle.
Posterior margin of T3 is banded white.

Vein 1-SR+M (arrows) sharply angled posteriorly, then more or less straight to junction with m-cu.

Orange throughout, including in ocellar area (the ‘stemmaticum’).

Frons orange throughout. Tips of mandibles black.

Head orange. Palps black. Propleuron (arrow) black.

Long and narrow. Around 3 times longer than wide.

Long and narrow. Around 3 times longer than wide.

Figures from Austin et. al. 1994

Flattened, viewed dorsally

Flattened, viewed dorsally

Flattened, viewed ventrally

Flattened, viewed ventrally