Sierola amphilyke Magnacca, 2026, sp. nov.
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| author | Magnacca, Karl |
| author_facet | Magnacca, Karl |
| contents | <p><b><i>Sierola amphilyke</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 97DA401A-F111-446B-A131-70302A2F482E</p><p>Figs 14, 18</p><p><b>Diagnosis</b></p><p>Among species with the head convex and setose basal wing cells, distinguished by the combination of a short, almost transverse clypeus which is evenly sloping in profile, and ocellar triangle right with lateral ocelli nearly touching the vertex crest. Closest to <i>S. exleyae</i> sp. nov. and <i>S. nauo</i> sp. nov., both of which have the clypeus distinctly curved in profile.</p><p><b>Etymology</b></p><p>From the Greek ‘ <i>amphilyke</i> ’, ‘gray of dawn’, referring to the collection of the holotype on the easternmost coast of Tasmania. It is a noun in apposition.</p><p><b>Type material</b></p><p><b>Holotype</b></p><p>AUSTRALIA – <b>Tasmania</b> • ♀; 13 km S of Falmouth; 41°32′ S, 148°16′ E; 6 Feb. 1992; C.J. Burwell leg.; ex ethanol; QM T262153.</p><p><b>Description</b></p><p><b>Female</b></p><p>HEAD. Clypeal process semi-elliptical to very short, almost transverse, extending only slightly beyond lateral portion of clypeus, apex broadly rounded to truncate; dorsally with a low carina, distinctly visible only when viewed directly down towards mandibles; in profile almost evenly sloping, nearly straight (very slightly curved). Mandible moderately narrow at base, distinctly broader on apical half, ventral margin distinctly concave; not twisted, at most weakly convex outwardly, outwardly coriaceous, somewhat dull; in ventral view evenly, moderately curved. Apex of mandible vertical, with teeth distinctly stronger ventrally. Malar space almost absent. 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 similar to and only slightly longer than setae of frons. Frons microsculpture coriaceous, matte but without strong surface texture. Vertex in dorsal view more or less straight, corners strongly rounded off; occipital margin broadly rounded. Lateral ocelli nearly touching vertex crest. Ocellar triangle anterior angle right. 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 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 evenly 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 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 very shallow, nearly absent. Antenna extending to pronotum.</p><p>MESOSOMA. Anterior margin of dorsal pronotal area in lateral view evenly rounded. Pronotal setae longer than flagellar width. Propodeal disc laterally coarsely striate; median carina absent, with median anterior and posterior triangular polished areas narrowly connected; transverse carina absent, brow of declivity broadly rounded; 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 faint microsculpture laterally. 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. Antenna brown on base of scape and apical flagellomeres, yellow medially. Mandible black. Coxae and femora brown, protibia and tarsus and all trochanters yellow, meso- and metatibiae and tarsi brownish.</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 nearly straight, meeting anterior wing margin at right angle.</p><p>MEASUREMENTS. LFW 1.49 mm; LM 0.72 mm; WH/LH 0.86; DH/LH 0.58; EV/HE 0.73; EV/WF 0.71; WF/HE 1.03; WH/WF 1.79; OOL/WOT 1.37; DM/LM 0.45; FL/FW 2.10; HFL/HFW 2.22; A3 L/ W 0.93; 2R1 L/ W 2.25.</p><p><b>Distribution</b></p><p>Tasmania; known only from the holotype, collected on the northeast coast.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19566083 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Sierola amphilyke Magnacca, 2026, sp. nov. Magnacca, Karl Biodiversity Taxonomy Animalia Arthropoda Insecta Hymenoptera Bethylidae Sierola Sierola amphilyke <p><b><i>Sierola amphilyke</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 97DA401A-F111-446B-A131-70302A2F482E</p><p>Figs 14, 18</p><p><b>Diagnosis</b></p><p>Among species with the head convex and setose basal wing cells, distinguished by the combination of a short, almost transverse clypeus which is evenly sloping in profile, and ocellar triangle right with lateral ocelli nearly touching the vertex crest. Closest to <i>S. exleyae</i> sp. nov. and <i>S. nauo</i> sp. nov., both of which have the clypeus distinctly curved in profile.</p><p><b>Etymology</b></p><p>From the Greek ‘ <i>amphilyke</i> ’, ‘gray of dawn’, referring to the collection of the holotype on the easternmost coast of Tasmania. It is a noun in apposition.</p><p><b>Type material</b></p><p><b>Holotype</b></p><p>AUSTRALIA – <b>Tasmania</b> • ♀; 13 km S of Falmouth; 41°32′ S, 148°16′ E; 6 Feb. 1992; C.J. Burwell leg.; ex ethanol; QM T262153.</p><p><b>Description</b></p><p><b>Female</b></p><p>HEAD. Clypeal process semi-elliptical to very short, almost transverse, extending only slightly beyond lateral portion of clypeus, apex broadly rounded to truncate; dorsally with a low carina, distinctly visible only when viewed directly down towards mandibles; in profile almost evenly sloping, nearly straight (very slightly curved). Mandible moderately narrow at base, distinctly broader on apical half, ventral margin distinctly concave; not twisted, at most weakly convex outwardly, outwardly coriaceous, somewhat dull; in ventral view evenly, moderately curved. Apex of mandible vertical, with teeth distinctly stronger ventrally. Malar space almost absent. 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 similar to and only slightly longer than setae of frons. Frons microsculpture coriaceous, matte but without strong surface texture. Vertex in dorsal view more or less straight, corners strongly rounded off; occipital margin broadly rounded. Lateral ocelli nearly touching vertex crest. Ocellar triangle anterior angle right. 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 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 evenly 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 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 very shallow, nearly absent. Antenna extending to pronotum.</p><p>MESOSOMA. Anterior margin of dorsal pronotal area in lateral view evenly rounded. Pronotal setae longer than flagellar width. Propodeal disc laterally coarsely striate; median carina absent, with median anterior and posterior triangular polished areas narrowly connected; transverse carina absent, brow of declivity broadly rounded; 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 faint microsculpture laterally. 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. Antenna brown on base of scape and apical flagellomeres, yellow medially. Mandible black. Coxae and femora brown, protibia and tarsus and all trochanters yellow, meso- and metatibiae and tarsi brownish.</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 nearly straight, meeting anterior wing margin at right angle.</p><p>MEASUREMENTS. LFW 1.49 mm; LM 0.72 mm; WH/LH 0.86; DH/LH 0.58; EV/HE 0.73; EV/WF 0.71; WF/HE 1.03; WH/WF 1.79; OOL/WOT 1.37; DM/LM 0.45; FL/FW 2.10; HFL/HFW 2.22; A3 L/ W 0.93; 2R1 L/ W 2.25.</p><p><b>Distribution</b></p><p>Tasmania; known only from the holotype, collected on the northeast coast.</p> |
| title | Sierola amphilyke Magnacca, 2026, sp. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Hymenoptera Bethylidae Sierola Sierola amphilyke |
| url | https://doi.org/10.5281/zenodo.19566083 |