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(Figs 1, 2, 21, 22, 24)
Types. Holotype worker, Australia, Queensland, 3km NE Mt. Webb, 15° 03S 145° 09E, 30 April-3 May, 1981, J. E. Feehan (ANIC) (ANIC 32-031017); paratype workers, 33 (same data as holotype) (ANIC 32-001260) (ANIC, MCZC, QMBA).
Diagnosis. Hairs on venter of head randomly distributed and not forming a distinct psammophore (Fig. 2); head relatively broad (Fig. 21), its posterior margin broadly arched in full face view (Fig. 1); scape relatively short (Fig. 22); erect hairs on mesosomal dorsum tapering to sharp points; propodeal spines long, the dorsal surfaces of propodeum and propodeal spines connected through a gentle concavity followed by a gentle convexity (so that the base of each spine is raised slightly above the dorsal surface of the propodeum) (Fig. 2). This species can be separated from the similar A. kimberleyensisHNS by the broader head and shorter scapes (see that species for additional notes on separating these taxa).
Description. Posterior margin of head broadly arched in full face view, the arch beginning at the occipital collar and with at most a weak angle separating the posterior and lateral margins of the head (often posterior and lateral margins forming a continuous surface). Hairs on venter of head randomly distributed and not forming a distinct psammophore. Mandibular sculpture composed of regularly sized striations. Erect hairs on mesosomal dorsum tapering to sharp points. Propodeal spines long. Dorsal surfaces of propodeum and propodeal spines connected through a gentle concavity followed by a gentle convexity (so that the base of each spine is raised slightly above the dorsal surface of the propodeum). Petiolar node (in dorsal view) longer than broad.
Measurements. Worker (n = 12). CI 84-91; EI 17-20; EL 0.20-0.24; HL 1.22-1.51; HW 1.04-1.29; ML 1.82-2.17; MTL 1.23-1.62; SI 133-156; SL 1.55-1.82.
Material examined (in ANIC unless otherwise noted). Queensland: 10km E Mareeba (Lowery,B.B.); 12km N Collinsville (Lowery,B.B.); 14km W by N Hope Vale Mission (Feehan,J.E.); 15km S Eton (Lowery,B.B.); 15mi. W Mt. Garnet (Lowery,B.B.); 20km N Monto (Lowery,B.B.); 24mi. NE Clermont (Dowse,J.E.; Lowery,B.B.); 25km W Mt. Garnet (Lowery,B.B.); 30mi. N Tambo (Lowery,B.B.); 39mi. NNW Taroom; 50km S Mackay (Lowery,B.B.); 5km E Pentland (Lowery,B.B.); 8km E Woodstock (Greenslade,P.J.M.); Camel Ck. Stn (Harrington,S.A.); Emu Creek, Mareeba (Lowery,B.B.); Expedition Ra., 50km E Rolleston (Lowery,B.B.); Koah (Wheeler,W.M.); Mareeba, 3km along Davies Ck. Road (Lowery,B.B.); Mundubbera(Lowery,B.B.); vic. Mt. Garnet (Taylor,R.W.).
Comments. This is a fairly common and widely distributed Queensland species (Fig. 24) which had previously been confused with A. pythiaHNS. However, it differs significantly from A. pythiaHNS and there is little chance of confusing these two species. Aphaenogaster barbaraHNS occurs in drier forested habitats such as dry sclerophyll and savannah woodlands. Nests are typical for the genus with large funnel-shaped entrances.
Found most commonly in these habitats: 4 times found in Dry sclerophyll, 3 times found in Ridgelands granodiorite, undulating rise, 3 times found in Savannah woodland, 2 times found in Hilly savannah woodland, 1 times found in Sandy plain, box-pine, 1 times found in Savannah woodland, sandy soil, 1 times found in dry sclerophyll woodland, 1 times found in Dry sclerophyll, reddish sandy soil, 1 times found in Dry sclerophyll, rich volcanic soil, 1 times found in Dry sclerophyll, sandy nr. creek.
Found most commonly in these microhabitats: 3 times loamy surface, brown texture contrast, 1 times Under log, smooth deep funnels abundant, 1 times Rimmed cones going deep into soil, 1 times Large funnel craters, 1 times Large entrances to nest, in ground, under log, 1 times In soil nr. creek, 1 times Huge open funnels in soil, 1 times Huge open craters, 1 times Deep funnel craters, 1 times Deep funnel, 1 times Abundant typical funnels, ...
Elevations: collected at 900 m
Collect Date Range: collected between 1914-10-31 and 2009-12-18