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| Natura: | Recurso digital |
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Zenodo
2026
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| Accesso online: | https://doi.org/10.5281/zenodo.19566525 |
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- <p><b><i>Sierola koala</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 45E30C3F-ED4B-4FCB-9486-D118F59E9D3C</p><p>Figs 100–101</p><p><b>Diagnosis</b></p><p>Part of a species complex with <i>S. platyrhyncha</i> sp. nov. and <i>S. samiata</i> sp. nov., characterized by the broad, flat clypeus which is curved in profile, highly polished, and largely impunctate; head broad and compressed; and vertex concave in dorsal view. Separated from the other two by having the basal wing cells sparsely setose rather than glabrous, frons distinctly broader than an eye length, ocellar triangle anterior angle right to weakly acute rather than strongly obtuse, and propodeum with a narrow polished strip.</p><p><b>Etymology</b></p><p>Named for the resemblance of the large polished clypeus to the prominent black nose of the iconic Australian mammal. It is a noun in apposition.</p><p><b>Type material</b></p><p><b>Holotype</b></p><p>AUSTRALIA – <b>Victoria</b> • ♀; The Grampians, Rose’s Gap; 3–5 Mar. 1990; R. Wharton leg.; SAMA.</p><p><b>Description</b></p><p><b>Female</b></p><p>HEAD. Clypeal process broad, elongate, semicircular at the apex, apex broadly rounded; dorsally flat, margins dropping off vertically; in profile elongate, evenly curved, apex acute. Mandible narrow, more or less parallel-sided except at base; not twisted, at most weakly convex outwardly, outwardly coriaceous, somewhat dull; in ventral view weakly curved. Apex of mandible strongly oblique, with ventral tooth largest, three dorsal teeth equal. Malar space 1/4 as long as width of base of mandible. Dorsal setae of head about as long as flagellar width or scarcely longer. Frons moderately punctate, about 2–3 pit widths apart. Vertex and gena setae distinctly longer than frons setae but only about as thick, not particularly conspicuous. Frons microsculpture evident but smooth, shining. Vertex in dorsal view broadly, shallowly concave, corners strongly rounded off; occipital margin not carinate but forming a pronounced ridge. Lateral ocelli nearly touching vertex crest. Ocellar triangle anterior angle right to weakly acute. Head narrowed 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 concave in lateral view, with relatively sparse setae. Head nearly flat ventrally, genal angle absent. Side of head posterior to eye distinctly angulate, rounded carina with distinct tesselate microsculpture extending from posteroventral margin of eye to vertex crest. Gena ventral to eye flat; sculpture weakly microreticulate 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 absent. Antenna extending to pronotum.</p><p>MESOSOMA. Anterior margin of dorsal pronotal area in lateral view strongly angulate. Pronotal setae about as long as flagellar width or scarcely longer. Propodeal disc laterally shining, with weak microsculpture; median carina absent, median area with a narrow polished strip extending from base to declivity; transverse carina absent, brow of declivity broadly rounded; metapleural carinae complete. Profemur strongly broadened, less than twice as long as wide, strongly laterally compressed, slightly arcuate in dorsal view.</p><p>METASOMA. Shining, apical tergites laterally punctate and with faint microreticulation. S3–6 each with a pair of long erect setae, progressively longer on apical segments. Sixth sternum glabrous medially, with a mix of long and short setae laterally.</p><p>COLOR. Body entirely dark brown to black. Antenna with scape and base of flagellum pale, becoming darker over apical half. Mandible reddish brown. Coxae and femora dark brown to black, tibiae, tarsi, and trochanters yellow.</p><p>WINGS. Membrane hyaline. Basal cells of fore wing sparsely setose, with one or two rows of setae in each cell. Cell 1M weakly convex posteriorly, corner posteroapical. Distal portion of vein Rs strongly curved, meeting anterior wing margin at oblique angle.</p><p>MEASUREMENTS. LFW 1.55 mm; LM 0.88 mm; WH/LH 0.93; DH/LH 0.41; EV/HE 0.45; EV/WF 0.36; WF/HE 1.26; WH/WF 1.66; OOL/WOT 1.13; DM/LM 0.38; FL/FW 1.80; HFL/HFW 2.24; A3 L/ W 1.30; 2R1 L/ W 2.67.</p><p><b>Distribution</b></p><p>Victoria; known only from the holotype collected in the Grampian range.</p>