Female soon after emergence on 2/3/26
Lateral view
Dorsal view 11 March 2026 - abdomen with two coloured bands
anterior pale orange band confined to T3 dorsally with small triangular midline patch at posterior border of T2
posterior orange band on exposed intersegmental membrane between T6 and T7
Ventral view
body length 14.0mm
Dorsal view
anterior pale orange band confined to T3 dorsally with small triangular midline patch at posterior border of T2
posterior orange band on exposed intersegmental membrane between T6 and T7
Head, thorax morphology and colour
Head all black; short, fine pale pubescence; shining, without punctures
Pronotum orange, mesoscutellum pale orange, shiny between sparse punctures
Metascutellum pale orange
Mesoscutum black
Thorax morphology and colour
mesoscutum black with side lobes shining between scarce punctures and short, pale pubescence on posterior and medial regions
mesoscutellum orange, shining with scarce punctures and short, pale scattered pubescence
Anterior abdomen colour and morphology
anterior pale orange band confined to T3 dorsally with small triangular midline patch at posterior border of T2
metascutellum orange
Posterior abdomen morphology and colour
anterior pale orange band confined to T3 dorsally with small triangular midline patch at posterior border of T2
posterior orange band on exposed intersegmental membrane between T6 and T7
Latero-ventral view
posterior orange band extends laterally to fill T7 to ventral border; crosses into T8, filling it to posterior and ventral borders
T10 (pygidium) orange
Abdomen with two coloured bands
anterior pale orange band expands onto sternum 3, making a complete band around segment 3, and partially into sternum 4
posterior orange band expands to ventral border of T7 and fills lateral region of T8 to its ventral border
tergum 10 (pygidium) is orange
small orange cerci visible
Ventral view of end of abdomen
- saw retracted
- sawsheath visible, no apparent teeth along medial edge or long protruding hairs; contrast with Perga dorsalis sawsheath, shown in next two images
Ventral view of abdomen of Perga dorsalis
see next image for details of structures
Sawsheath of Perga dorsalis
Saw dissected from female
area within rectangle shown in next image
Teeth #9, 10, 11 from saw tip
area within square - tooth #10 - shown in next image
Tooth #10 showing denticulations (serrulae)
46 denticulations (serrulae) on tooth #10
Head and antennal morphology - frontal view
head black; short, fine pale pubescence (but hairs longer on face); shining, without punctures
distance between eyes in front subequal to length of eye (0.98)
breadth of clypeus no more than 2/3 length of eye (0.66)
22 antennomeres - scape and pedicel black; 8 basal flagellomeres pale orange; apical 12 black; pecten directed antero-ventrally on each flagellum, becoming longer in apical flagellomeres; most apical antennomere is clubbed
Head and mouthpart morphology
apex of clypeus emarginate
malar space less than ½ breadth of mandible at base (0.29)
Thorax morphology and colour
short, fine, pale pubescence over thorax
pronotum orange with black anterior border and black behind accessory furrow
accessory furrow on pronotum subparallel with side margin of pronotum
mesepisternum black with large central orange area
Forewing ventral view
wing hyaline with dark brown band extending along anterior border to wing apex, covering radial and 1st cubital cells completely and part of 2nd and 3rd cubital and 1st discoidal cells
costa and stigma yellowish-brown
venation black in anterior and basal regions, dark brown in posterior and apical regions
Leg colour
coxa, femur and trochanter black in all legs
fore and mid tibiae pale with outer face black apically, hind tibia all pale
tarsi pale in all legs
Hind tarsus
hind basitarsus only slightly longer (1.1X) than next tarsal segment