living female soon after collection on 11/4/25
living female soon after collection on 11/4/25
body length 14.5mm
Dorsal view - identities of thoracic and abdominal segments
- after euthenasia on 12/4
Abdomen with two yellow bands
anterior band confined to tergum 3 dorsally
posterior yellow band is exposed intersegmental membrane between terga 6 and 7
Abdomen with two yellow bands
anterior yellow band fills tergum 3 laterally and just crosses into tergum 4
posterior yellow band extends ventrally into tergum 7, expanding to its posterior edge and crossing into tergum 8
saw extended
Extended saw - area in rectangle shown in next photo
photomicrograph of tooth #10
34 denticulations present on this tooth - Benson (1938) reports 28-40 denticulations present in P. cinctus
Drawing of saw tooth #10 of P. cinctus
from Benson (1938) fig. 6
Abdomen with two yellow bands
anterior yellow band expands onto sternum 3, making a complete band around segment 3
posterior yellow band expands to ventral border of tergum 7 and 8
tergum 10 (pygidium) is also yellow
small cerci visible
Head and antennal morphology - frontal view
Head black; short, fine pale pubescence; shining, without punctures
Head and antennal morphology - labelled
apex of clypeus emarginate
malar space less than ½ breadth of mandible at base (=0.45)
distance between eyes in front subequal to length of eye (=1.1)
breadth of clypeus no more than 2/3 length of eye (=0.6)
23 antennomeres - scape and pedicel black; 8 basal flagellomeres yellow; apical 13 black; pecten directed antero-ventrally on each flagellum, becoming longer in apical flagellomeres; most apical antennomere is clubbed
Head morphology
apex of clypeus emarginate
malar space less than ½ breadth of mandible at base (=0.45)
distance between eyes in front subequal to length of eye (=1.1)
breadth of clypeus no more than 2/3 length of eye (=0.6)
Head - lateral view
mouthparts labelled
Drawing of Pterygophorus cinctus head - frontal view
shows eyes converging in front so that length of eye is about equal to distance between eyes in front - Benson (1938) fig. 1
Thorax morphology and colour
short, fine, pale pubescence over thorax
accessory furrow on pronotum (arrow) subparallel with side margin of pronotum
pronotum yellow with black anterior border and black behind accessory furrow
mesepisternum black with large central yellow area
Pterygophorus cinctus pronotum lateral view
shows accessory furrow on pronotum - Benson (1938) fig.5
Thorax morphology
side portion of pronotum cut off by accessory furrow (arrow) is broader than length of malar space (arrow) - separates P. cinctus, P. distinctus, P. insignis and P. facielonga from P. turneri.
thorax covered by short, fine, pale pubescence
Thorax morphology and colour
Pronotum and mesoscutellum pale yellow, shiny between sparse punctures
Metascutellum black with pale yellow central patch
Mesoscutum black
Forewing dorsal view
wing hyaline with dark brown band extending along anterior border to wing apex, covering 1st cubital and radial cells completely and half of 2nd and 3rd cubital cells (but not 1st discoidal cell)
costa and stigma yellowish-brown
venation black in basal and anterior regions, brown in apical region
Leg colour
coxa, trochanter and femur - black in all legs
tibia black in all legs, except for dorsal side of basal third, which is whitish-yellow
tarsomeres black in all legs, except for basal third (in some tarsomeres more), which is whitish yellow
Leg colour
coxa, trochanter and femur - black in all legs
tibia black in all legs, except for dorsal side of basal third, which is whitish-yellow
tarsomeres black in all legs, except for basal third (in some tarsomeres more), which is whitish yellow
