Colour: mesoscutum & scutellum orange/red; metanotum & propodeum black; head & metasoma dark metallic-blue; wings heavily infuscated brown

Forewing venation: 3 submarginal cells; stigma well-developed; apex of marginal cell on wing margin

Strong sculpturing on head and thorax

Colour: pronotum black; mesopleura orange/red

Scopae on hind legs (femora & tibia)

Facial fovea: linear

Mandibles broad, multidentate

Mandibles tridentate (arrows)

Propodeum enclosure not delineated laterally, except by shallow sulci. Remainder of dorsal propodeum gently rounded, dropping off abruptly at sides.

Propodeum enclosure not delineated laterally, except by shallow sulci. Remainder of dorsal propodeum gently rounded, dropping off abruptly at sides. The interface between dorsal and lateral surfaces might be considered a carina, or at least a ridge.

Pygidial plate: slender, parallel-sided.

Female (note 10 flagellomeres)

Size ~ 4mm

Scopae: absent

Head shape: quadrate

Eye shape: extends beyond anterior articulation of mandible

Clypeus: appears recessed, relative to supraclypeal region (not forming continuous arc)

Clypeus: appears recessed, relative to supraclypeal region (not forming continuous arc)

Hind femur and tibia (viewed anteriorly): basitibial plate edged by small tubercles

Hind tibia (viewed dorsally): basitabial plate not clearly defined

Tomentum: orange basal bands on T2 & T3; orange patches on mesoscutum, posterolaterally,and metanotum, medially

Forewing: 3 submarginal cells, SCIII much shorter than SCI, SCIII longer than SCII; basal vein strongly curved; first recurrent vein interstitial SCII & SCIII; marginal cell apex acute, situated on wing vein

Tomentum: orange basal bands on T2 & T3; orange patches on mesoscutum, posterolaterally,and metanotum, medially

Tomentum: orange patches on pronotal collar, laterally; white fringe on pronotal lobes

Scopae: well-developed on hind femur; shorter, less dense on hind tibia

Proboscis tip, viewed dorsally. Galea closely associated (‘applied’) to stipes.

Proboscis, showing relative length of cardo and prementum.

Proboscis: long prementum; short, acute glossa; 6-segmented maxillary palp

Proboscis, viewed ventrally, showing prementum and labial palps, flanked laterally by stipes.

Proboscis tip, viewed ventrally. Note that the glossa is curved upwards and so not visible in this image.

Size: 11-12mm, robust.

Body colour: dark metallic blue-green throughout.

Body colour: dark metallic blue-green throughout.

Long hairs over most of head, mesosoma, and legs.

Long hairs over most of head, mesosoma, and legs.

Long hairs over most of head, including genae

Forewing: 3 submarginal cells; stigma well-developed, tapering apically to marginal cell vein well inside marginal cell (see p. 105, Houston 2018)

Forewing: 3 submarginal cells; stigma well-developed, tapering apically to marginal cell vein well inside marginal cell (see p. 105, Houston 2018)

Female (note 10 flagellar segments)

Mandibles long. Labrum with transverse ridges.

Hind tibia (and base of basitarsus), viewed anteriorly

Hind tibia (viewed posteriorly): scopae long, particularly dense above (dorsally); hairs beneath include mixture, with some particularly long, and obviously plumose.

Front basitarsus: short, dense bristles (compare images p. 107 Houston 2018)

Pygidial plate: present

Head and thorax strongly sculptured.
Antennae: long; 11 flagellomeres (male)

Size: ~7mm

Head and thorax strongly sculptured.
Compare antennae and head shape with image e Houston (2018), page 101.

Forewing: 3 submarginal cells; basal vein not strongly arched; stigma well developed; apex of marginal cell on wing margin; strongly tinted brown, veins nearly black

Mid tibia (anterior view)

Front tibia and tarsus (anterior view)

Size: ~6mm

Scopae: absent

TI with long median groove.

Forewing: 2 submarginal cells; SCII about half as long as SCI; basal angle of SCI distinctly less than 90º; posterior vein of SCI sinuate; first recurrent vein joining SCII

Base of hind tibia, viewed dorsally

Base of hind tibia, viewed dorsally

Hind basitarsus

Apex of metasoma, viewed dorsally.

Apex of hind basitarsus, viewed anteriorly: penicillus present

T5: with hair fringe divided medially by a nearly hairless strip

T6: pygidial plate present

Facial marking consistent with Exley 1974, Figs. 9J-K

Antenna with 10 flagellomeres (female)

Pygidial plate: present