head-body length 12mm

forewing with distinct 1r

3rd interval of M distinctly shorter than 2nd, but longer than half length of 2r-m

(note: the genus description for Levothynnus describes the 2nd and 3rd intervals as ‘subequal’)

antennal prominence strongly raised above rest of frons

antennal prominence delineated by transverse and lateral carinae (so U-shaped from this angle)

antennal prominence with short, vertical carina below (so broadly Y shaped in frontal view)

clypeus long, broadly truncate apically, without sagittal carina

clypeus long, moderately convex, without sagittal carina

clypeus: broadly truncate apically; black, with narrow pale stripes near lateral margins (but not extending across apical margin)

mandibles: black, with small pale marks not reaching either the base nor the apex

antennae moderately long, reaching back to propodeum

most antennal segments long, more than 2x longer than wide

pronotum: relatively long mid dorsally; slightly narrower than head; anterior margin slightly curved, sharply carinate, acutely produced laterally

fore coxae flat, very slightly concave but without raised edges

apex rounded, with long, inner triangular process (arrow indicates tip of triangular process)

apex rounded, with long, inner triangular process

without digitate, ventrolateral tubercle (see Key step 6)

mesosternal lamella long (arrow indicates posterior tip), completely covering base of mid coxa (see Key step 4)

mesopleuron extensively red, with long broad scrobal groove

S3-S5 with raised oblique area

sternites not spinose

S1 longitudinally medially raised but not carinate or tuberculate

“broad, subapical, transverse carina becoming curved laterally to form broad, medially flat U-shaped carina” (Brown, 2025, p. 723 … from genus diagnosis)

“broad, subapical, transverse carina becoming curved laterally to form broad, medially flat U-shaped carina” (Brown, 2025, p. 723 … from genus diagnosis)

“hypopygium trispinose although basal lobes often rounded, lateral margins between basal and apical spines slightly raised, separated by polished, non-carinate, shallowly convex region” (Brown, 2025 p. 725 … from genus description)

apical spine continuous with carina along ventral midline

lateral margins raised, apical spine slightly upturned