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Zenodo
2026
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| Online Access: | https://doi.org/10.5281/zenodo.19566682 |
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- <p><b><i>Sierola namatjira</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 37A429FF-8CD7-4C16-B6A0-4E7A76E605A6</p><p>Figs 26, 136</p><p><b>Diagnosis</b></p><p>A very distinctive species, easily recognized by the combination of the head flat dorsally and flat to weakly convex ventrally, very deep (DH/LH ~0.59), mandible moderately broad and parallel-sided, and basal wing cells densely setose.</p><p><b>Etymology</b></p><p>Named for Albert Namatjira, the Aboriginal artist who was born near the collecting site and for whom the road where it was taken is named. It is a noun in apposition.</p><p><b>Type material</b></p><p><b>Holotype</b></p><p>AUSTRALIA – <b>Northern Territor</b> y • ♀; Kamatjira [sic; Namatjira] Drive; 23°45′02″ S, 132°54′20″ E; elev. 810 m; 13 Mar. 2002; J. Heraty leg.; UCRC 437204.</p><p><b>Description</b></p><p><b>Female</b></p><p>HEAD. Clypeal process semicircular, apex rounded; dorsally with a low carina, distinctly visible only when viewed directly down towards mandibles; in profile evenly sloping, nearly straight. Mandible moderately broad, more or less parallel-sided except at base; not twisted, at most weakly convex outwardly, outwardly coriaceous, somewhat dull; in ventral view obtusely elbowed. Apex of mandible vertical, with second ventral tooth largest. Malar space very small. Dorsal setae of head shorter than flagellar width. Frons with relatively regular, moderately close punctures, 1–2 pit widths apart. Vertex and gena setae similar to and only slightly longer than setae of frons. Frons microsculpture dull, granular. Vertex in dorsal view more or less straight; occipital margin broadly rounded. Lateral ocelli separated from vertex crest by about their own length. Ocellar triangle anterior angle strongly acute. Head more or less parallel-sided for some distance posterior to eyes. Eye setae short, only about as long as 1–2 ommatidia. Dorsum of head in lateral view nearly flat posterior to middle of inner eye margin, head deepest on line through posterior margin of eye. Venter of head posterior to mandible convex in lateral view, with relatively sparse setae. Head nearly flat ventrally, genal angle absent. Side of head posterior to eye convex. Gena ventral to eye convex; sculpture coriaceous ventrally and posterolaterally, with broad band of tesselate-colliculate sculpture extending diagonally on each side from anterior margin of eye to posteroventral margin of head. Postgenal depression very shallow, nearly absent. Antenna extending to anterior margin of pronotum.</p><p>MESOSOMA. Anterior margin of dorsal pronotal area in lateral view weakly angulate. Pronotal setae about as long as flagellar width or scarcely longer. Propodeal disc laterally coarsely striate; median carina absent; transverse carina faintly present laterally, obsolete medially; metapleural carinae complete. Profemur robust, about twice as long as wide and strongly convex dorsally, strongly laterally compressed, slightly arcuate in dorsal view.</p><p>METASOMA. Shining, with very faint microreticulation over posterior terga. S2–5 each with a single sparse apical row of setae. Sixth sternum glabrous medially, with a mix of long and short setae laterally.</p><p>COLOR. Body entirely dark brown to black (metasomal terga with slightly paler W-shaped marks). Antenna yellow, tinged with brown dorsally. Mandible black. Coxae and femora brown, tibiae, tarsi, and trochanters yellow.</p><p>WINGS. Membrane hyaline. Basal cells of fore wing densely and conspicuously setose. Cell 1M distinctly convex posteriorly, corner medioapical. Distal portion of vein Rs nearly straight, meeting anterior wing margin at right angle.</p><p>MEASUREMENTS. LFW 1.76 mm; LM 1.00 mm; WH/LH 0.81; DH/LH 0.59; EV/HE 0.79; EV/WF 0.81; WF/HE 0.98; WH/WF 1.77; OOL/WOT 1.64; DM/LM 0.41; FL/FW 1.94; HFL/HFW 2.19; A3 L/ W 0.93; 2R1 L/ W 2.20.</p><p><b>Distribution</b></p><p>Northern Territory; known only from the holotype, collected in the desert interior.</p><p><b>Remarks</b></p><p>The affinities of this species are obscure; although not particularly divergent, it does not appear to be close to any other known species.</p>