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Zenodo
2026
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| Accés en línia: | https://doi.org/10.5281/zenodo.19566513 |
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- <p><b><i>Sierola kalarku</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 5BEB8F22-ADE0-465C-8859-7AB69A48D7C5</p><p>Figs 98, 110</p><p><b>Diagnosis</b></p><p>Namesake of the <i>kalarku</i> species group, with the mandible strongly twisted and shiny, head more or less triangular in dorsal view, vertex slightly concave, frons microsculpture smooth, clypeus without any trace of a carina, and basal wing cells nearly glabrous. Distinguished from related species by the combination of the head ventrally weakly convex (without a distinct genal angle), malar space distinct, propodeum with a polished basal triangle extending only 1/3 distance to the declivity, and vein Rs joining the anterior wing margin.</p><p><b>Etymology</b></p><p>Named for the Kalarku people (alt. Kalaako, Galaagu), the Aboriginal inhabitants of the area where the type was collected. It is a noun in apposition.</p><p><b>Type material</b></p><p><b>Holotype</b></p><p>AUSTRALIA – <b>Western Australia</b> • ♀; Moir’s Rock, 42 km NNW of Salmon Gums; 32°39′ S, 121°25′ E; 3 Jan. 1987; G. and A. Daniels leg.; QM T262161.</p><p><b>Description</b></p><p><b>Female</b></p><p>HEAD. Clypeal process semicircular, apex rounded; dorsally flat, not carinate, slightly convex only laterally (basally somewhat convex); in profile evenly sloping, nearly straight. Mandible narrow, slightly broadened at base and apex, ventral margin weakly concave; strongly twisted, outwardly shining but with distinct, fine microsculpture; in ventral view obtusely elbowed. Apex of mandible vertical, with teeth distinctly stronger ventrally. Malar space 1/3 as long as width of base of mandible. Dorsal setae of head about as long as flagellar width or slightly shorter. Frons with distinct, uneven punctures, 1–3 pit widths apart. Vertex and gena setae similar to and only slightly longer than setae of frons. Frons microsculpture evident but smooth, shining. Vertex in dorsal view broadly, shallowly concave; occipital margin narrowly rounded. Lateral ocelli nearly touching vertex crest. Ocellar triangle anterior angle right. Head rounded shortly posterior to eyes. Eye setae short, only about as long as 1–2 ommatidia. Dorsum of head in lateral view slightly convex, head deepest on line through posterior margin of eye. Venter of head posterior to mandible convex in lateral view, with relatively sparse setae. Head weakly convex ventrally, genal angle absent. Side of head posterior to eye with a line of tesselate microsculpture extending from posteroventral margin of eye to vertex crest, distinctly different from smoother sculpting dorsally and ventrally. Gena ventral to eye convex; sculpture smooth and polished posterolaterally, finely microreticulate ventrally, with broad band of tesselate-colliculate sculpture extending diagonally from anterior margin of eye to posteroventral margin of head. Postgenal depression very shallow, nearly absent. Antenna extending to pronotum.</p><p>MESOSOMA. Anterior margin of dorsal pronotal area in lateral view strongly angulate, pronotal disc distinctly flattened. Pronotal setae about as long as flagellar width or scarcely longer. Propodeal disc laterally finely, weakly striate; median carina absent, with a distinct median triangular polished area extending about 1/3 distance from base to declivity; transverse carina absent, brow of declivity broadly rounded; metapleural carinae complete. Profemur robust, about twice as long as wide and strongly convex dorsally, with both anterior and posterior surfaces convex, not strongly compressed, more or less straight in dorsal view.</p><p>METASOMA. Shining, with faint microsculpture laterally. S2–5 each with a single sparse apical row of setae. Sixth sternum broadly glabrous medially, with sparse setae laterally.</p><p>COLOR. Body entirely dark brown to black. Antenna brown on base of scape and apical flagellomeres, yellow medially. Mandible black. Coxae and femora brown, tibiae brown, tarsi yellow.</p><p>WINGS. Membrane hyaline. Basal cells of fore wing nearly glabrous, with only a few scattered setae. Cell 1M weakly convex posteriorly, corner posteroapical. Distal portion of vein Rs nearly straight, meeting anterior wing margin at right angle.</p><p>MEASUREMENTS. LFW 1.26 mm; LM 0.75 mm; WH/LH 0.83; DH/LH 0.49; EV/HE 0.46; EV/WF 0.48; WF/HE 0.95; WH/WF 1.84; OOL/WOT 1.38; DM/LM 0.35; FL/FW 2.00; HFL/HFW 2.06; A3 L/ W 1.00; 2R1 L/ W 2.92.</p><p><b>Distribution</b></p><p>Western Australia; known only from the holotype, collected in the semi-arid zone.</p>