Larrisson spinosus Pulawski 2012

Male. Width of face across clypeus and vertex = 60:58, least interocular distance 30. Orbital fovea rudimentary. Clypeal lobe prominent, its free margin arcuate, not angulate laterally (Fig. 16a). Length of scape (excluding radicle) 2.7 × width, length equal to flagellomeres I–III + half IV combined. Mesopleuron with obtuse, transverse crest in front of midcoxa; mesothoracic venter sparsely punctate on each side of median zone (punctures several diameters apart). Metanotum with conspicuous median spine (Fig. 16b). Propodeal dorsum with conspicuous spine behind spiracle; side ridged; posterior surface ridged both mesodorsally and mesoventrally. Outer surface of hindtibia largely impunctate and asetose between spines in dorsal half. Setae all silvery, appressed on head, thorax, propodeum, and legs, partly concealing integument on clypeus and pronotal collar, concealing integument from most angles on lower frons except for glabrous scapal basin, concealing or not concealing on mesopleuron, not concealing on mesothoracic venter, forming ill-defined apical fasciae on terga I–III. Hindfemoral ventral surface asetose, inner (= posterior) surface setose except ventrally in holotype and specimen from Calperum Station. Head, thorax, and propodeum black except the following are pale yellow: scape, pedicel, mandible (except apically), and pronotal lobe, whereas flagellum is light brown ventrally and light brown to black dorsally. Forefemur black basally (reddish brown in specimen from Cocata Conservation Park), pale yellow apically and in apical half ventrally; midfemur reddish brown basally, pale yellow apically and in apical third ventrally; hindfemur reddish brown, pale yellow apically; tibiae pale yellow, partly reddish brown; forebasitarsus pale yellow (reddish brown on inner surface), remaining article yellowish brown; mid- and hindtarsi pale yellow except apical tarsomeres light brown. Gastral terga I, II, and VII reddish brown, remaining terga reddish brown laterally and on apical depressions, otherwise black. Posterior mandibular margin not expanded between base and notch, inner margin with obtuse tooth near midlength (Fig. 16a). Flagellum cylindrical; dorsal length of flagellomere I about equal to apical width. Metanotum with conspicuous spine (Fig. 16b). Propodeum with conspicuous spine behind spiracle (spine longer than that on metanotum). Legs unmodified except hindfemur concave ventrally, slightly expanded ventrad at apex, carinate between ventral and posterior (= inner) surfaces; forebasitarsus with four rake spines; apical spine of foretarsomere III equal to apical width of basitarsus. Tergum VII punctate throughout, rounded apically. Sternum II with transverse swelling behind midlength, swelling glabrous, similar to that of quintus. Sterna III–VII with long, erect setae at bases of apical depressions, otherwise practically asetose. Sternum VIII flat, glabrous, rounded apically. Length 8.4–9.6 mm. Genitalia similar to those of quintus. Female. Unknown.

(Fig. 11). South Australia and Western Australia.

Male. Width of face across clypeus and vertex = 60:58, least interocular distance 30. Orbital fovea rudimentary. Clypeal lobe prominent, its free margin arcuate, not angulate laterally (Fig. 16a). Length of scape (excluding radicle) 2.7 × width, length equal to flagellomeres I–III + half IV combined. Mesopleuron with obtuse, transverse crest in front of midcoxa; mesothoracic venter sparsely punctate on each side of median zone (punctures several diameters apart). Metanotum with conspicuous median spine (Fig. 16b). Propodeal dorsum with conspicuous spine behind spiracle; side ridged; posterior surface ridged both mesodorsally and mesoventrally. Outer surface of hindtibia largely impunctate and asetose between spines in dorsal half. Setae all silvery, appressed on head, thorax, propodeum, and legs, partly concealing integument on clypeus and pronotal collar, concealing integument from most angles on lower frons except for glabrous scapal basin, concealing or not concealing on mesopleuron, not concealing on mesothoracic venter, forming ill-defined apical fasciae on terga I–III. Hindfemoral ventral surface asetose, inner (= posterior) surface setose except ventrally in holotype and specimen from Calperum Station. Head, thorax, and propodeum black except the following are pale yellow: scape, pedicel, mandible (except apically), and pronotal lobe, whereas flagellum is light brown ventrally and light brown to black dorsally. Forefemur black basally (reddish brown in specimen from Cocata Conservation Park), pale yellow apically and in apical half ventrally; midfemur reddish brown basally, pale yellow apically and in apical third ventrally; hindfemur reddish brown, pale yellow apically; tibiae pale yellow, partly reddish brown; forebasitarsus pale yellow (reddish brown on inner surface), remaining article yellowish brown; mid- and hindtarsi pale yellow except apical tarsomeres light brown. Gastral terga I, II, and VII reddish brown, remaining terga reddish brown laterally and on apical depressions, otherwise black. Posterior mandibular margin not expanded between base and notch, inner margin with obtuse tooth near midlength (Fig. 16a). Flagellum cylindrical; dorsal length of flagellomere I about equal to apical width. Metanotum with conspicuous spine (Fig. 16b). Propodeum with conspicuous spine behind spiracle (spine longer than that on metanotum). Legs unmodified except hindfemur concave ventrally, slightly expanded ventrad at apex, carinate between ventral and posterior (= inner) surfaces; forebasitarsus with four rake spines; apical spine of foretarsomere III equal to apical width of basitarsus. Tergum VII punctate throughout, rounded apically. Sternum II with transverse swelling behind midlength, swelling glabrous, similar to that of quintus. Sterna III–VII with long, erect setae at bases of apical depressions, otherwise practically asetose. Sternum VIII flat, glabrous, rounded apically. Length 8.4–9.6 mm. Genitalia similar to those of quintus. Female. Unknown.

(Fig. 11). South Australia and Western Australia.