- orange antennae, longer than distance between insertions
- black head, dorsal yellow patch on vertex
- orange pronotum
- shining black mesoscutum
- smooth, hairless, yellow scutellum with small hind lobes
- dorsum of abdomen shining greenish black
- forewings pale brown hyaline
- hind femora dark orange, apex black on dorso-medial side
- hind tarsus shorter than hind tibia

- genae black with orange dorsal patch, pilose
- clypeus and labrum orange
- mandibles black and chestnut with tips black
- pronotum dark yellow, pilose dorsally
- mesepisternum black with large central pale yellow patch, moderately heavily punctate
- mesepimeron black
- metepimeron white
- metepisternum black
- mesosternum shiny black, unpunctured
- lateral folds of terga, venter shiny green black, unpunctured
- abdomen with green-black iridescence
- sawsheath orange with pale yellow hairs, with considerable space between each hair, tips of hairs spoon-shaped
- saw (lance and lancet) dark orange
- coxa black basally, pale yellow apically
- all femora dark orange
- all tibiae orange

- antennal flagellum orange, scape black and orange, pedicel orange
- inner orbits, genae black, strongly punctated
- mesosternum, lateral folds of terga and venter shining black
- sawsheath orange with pale yellow hairs
- all coxae yellow with paler medial sides
- all femora orange with hind femora dark orange
- all tibiae and tarsi orange

body length 22mm

- hind ocelli closer together so that POL (distance between posterior ocell) is less than OOL (distance between ocellus and eye)
- postocellar region is longer than its breadth in front, POL only about half as long as distance between hind ocellus and hind margin of head

- abdomen with green-black iridescence
- hairs of sawsheath well spaced apart, tips of hairs spooned
- saw-bench relatively short and broad
- hind basitarsus about as long as next three tarsal segments together

lower genae with dense, short hairs

hairs of sawsheath well spaced apart, tips of hairs spooned

abdomen with green-black iridescence

sawsheath in #PW043 Perga affinis‍ (iNaturalist observation, Chris Seager)
- hairs on sawsheath are more closely spaced than in P. dorsalis and lack their spoon shape

- wings yellowish-brown infuscate
- vertex without small glabrous area at meson (=midline?)

- hind basitarsus about as long as the three following tarsal segments together
- next to last tarsal segment clearly longer than broad
- mesepimeron with a distinct pale patch
- abdomen with green-black iridescence

- coxae black in part

flagellum much longer than front margin of clypeus

- vertex without small glabrous area at meson (=midline?)
- lower genae with dense, short hairs

- lower gena with dense, short hairs

- hind ocelli closer together so that POL (distance between posterior ocell) is less than OOL (distance between ocellus and eye)
- postocellar region is longer than its breadth in front, POL only about half as long as distance between hind ocellus and hind margin of head
- lower genae with dense, short hairs

- flattened “saw-bench” relatively short and broad, with seven or eight obvious longitudinal striae
- hairs of ovipositor valves with a considerable margin between each hair, tips of hairs spooned
- extreme apices of valves diverging when viewed from beneath