The propodeal enclosure is small and triangular, as in the female. It is quite smooth, lacking the striations of many species.

The median lobe is weakly convex, the apical margin bearing 3 small, rounded teeth (white arrows). Lateral lobes bear brushes of long, amber hairs (green arrows).

Petiole longer than wide, nearly parallel-sided, bearing some long, pale setae.

Maximum width of T2 is ~2.3x that of petiole (see pink lines)

In some Cerceris species, the male flagella have ‘tyli’ on the last 2 or more segments. Tyli are “elongate welts or smooth, polished streaks on the under surface”. No such modifications are discernible on this specimen.

dorsal view of wasp, (but as the antenna is curved, lateral view of underside of terminal segments)

Same antenna as in previous image.

ventral view of wasp, (but as the antenna is curved, medial/dorsal view of terminal segments)

Size: length ~8mm; fore wing 6.2mm
(Evans’ plesiallotype: length 10mm; fore wing 7mm)

Face extensively yellow.

The flagellum is dark above, pale below. The scape has a pale spot below/anteriorly.

ventral view

Pair of yellow spots on pronotum (green arrows).

Tegulae spotted yellow (white arrow)

dorsal view of thorax

Gaster generally black, with yellow bands or spots on T2 and T4-6.

dorsal view, gaster

OOL (white line) greater than POL (green line)

Pronotal carinae not quite reaching dorsal surface (blue arrows)