Sierola camptostega Magnacca, 2026, sp. nov.
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2026
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| author | Magnacca, Karl |
| author_facet | Magnacca, Karl |
| contents | <p><b><i>Sierola camptostega</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 34421DD1-A60E-47ED-ABDF-B460A6C90210</p><p>Figs 20, 36</p><p><b>Diagnosis</b></p><p>Among species with the basal wing cells setose and head convex dorsally, forming a species pair with <i>S. cecidophila</i> sp. nov. based on the black mandible, head long posterior of the eye (EV/HE ~1.00), and clypeus in profile high, blunt and recurved apically. Distinguished by having the head ventrally flat or very weakly convex, parallel-sided posterior of the eye, and narrower and more compressed (WH/LH ~0.71, DH/LH ~0.49).</p><p><b>Etymology</b></p><p>From the Greek ‘ <i>kamptos</i> ’, ‘twisted’, + ‘ <i>stegos</i> ’, ‘roof’, referring to the sinuate ridgeline of Mount Baker 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>South Australia</b> • ♀; Mt Barker near summit; Dec. 1985; A.D. Austin leg.; <i>Acacia</i> scrub, Malaise trap; SAMA.</p><p><b>Description</b></p><p><b>Female</b></p><p>HEAD. Clypeal process semi-elliptical, apex broadly rounded; dorsally with a low carina, distinctly visible only when viewed directly down towards mandibles, or with a sharp carina; in profile weakly sloping dorsally but strongly rounded and recurved at apex, or steep and short, evenly curved. Mandible moderately broad, weakly to distinctly narrowed medially and broadened at apex, ventral margin concave; apical half of mandible strongly convex outwardly, teeth arrayed on frontal and dorsal surfaces, outwardly coriaceous, somewhat dull; in ventral view evenly, moderately curved. Apex of mandible vertical, with teeth distinctly stronger ventrally. Malar space very small. Dorsal setae of head about as long as flagellar width or scarcely longer. Frons with shallow, uneven punctures, 1–3 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; occipital margin not carinate but forming a pronounced ridge. Lateral ocelli distinctly separate from vertex crest by less than ocellus length. Ocellar triangle anterior angle weakly to strongly acute. Head more or less parallel-sided for some distance posterior to eyes. Eye setae moderate, about as long as 2–3 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 to nearly flat 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 posterolaterally, coriaceous ventrally, with broad band of tesselate-colliculate sculpture extending diagonally from anterior margin of eye to posteroventral margin of head. Postgenal depression absent. Antenna short, scarcely extending beyond head.</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; 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>COLOR. Body entirely dark brown to black. Antenna brown on base of scape and apical flagellomeres, yellow medially. Mandible black. Coxae and femora dark brown to black, tibiae brown, tarsi yellow.</p><p>WINGS. Membrane tinged with yellow. Basal cells of fore wing sparsely setose, cell R somewhat densely setose apically. 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 1.90 mm; LM 0.95 mm; WH/LH 0.71; DH/LH 0.49; EV/HE 1.03; EV/WF 0.95; WF/HE 1.07; WH/WF 1.67; OOL/WOT 1.82; DM/LM 0.33; FL/FW 1.99; HFL/HFW 2.22; A3 L/ W 0.90; 2R1 L/ W 2.78.</p><p><b>Distribution</b></p><p>South Australia; known only from the holotype, collected near Adelaide.</p><p><b>Remarks</b></p><p>The unique type is missing the metasoma, but based on the appearance of the head and mandibles it is almost certainly a female.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19566182 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Sierola camptostega Magnacca, 2026, sp. nov. Magnacca, Karl Biodiversity Taxonomy Animalia Arthropoda Insecta Hymenoptera Bethylidae Sierola Sierola camptostega <p><b><i>Sierola camptostega</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 34421DD1-A60E-47ED-ABDF-B460A6C90210</p><p>Figs 20, 36</p><p><b>Diagnosis</b></p><p>Among species with the basal wing cells setose and head convex dorsally, forming a species pair with <i>S. cecidophila</i> sp. nov. based on the black mandible, head long posterior of the eye (EV/HE ~1.00), and clypeus in profile high, blunt and recurved apically. Distinguished by having the head ventrally flat or very weakly convex, parallel-sided posterior of the eye, and narrower and more compressed (WH/LH ~0.71, DH/LH ~0.49).</p><p><b>Etymology</b></p><p>From the Greek ‘ <i>kamptos</i> ’, ‘twisted’, + ‘ <i>stegos</i> ’, ‘roof’, referring to the sinuate ridgeline of Mount Baker 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>South Australia</b> • ♀; Mt Barker near summit; Dec. 1985; A.D. Austin leg.; <i>Acacia</i> scrub, Malaise trap; SAMA.</p><p><b>Description</b></p><p><b>Female</b></p><p>HEAD. Clypeal process semi-elliptical, apex broadly rounded; dorsally with a low carina, distinctly visible only when viewed directly down towards mandibles, or with a sharp carina; in profile weakly sloping dorsally but strongly rounded and recurved at apex, or steep and short, evenly curved. Mandible moderately broad, weakly to distinctly narrowed medially and broadened at apex, ventral margin concave; apical half of mandible strongly convex outwardly, teeth arrayed on frontal and dorsal surfaces, outwardly coriaceous, somewhat dull; in ventral view evenly, moderately curved. Apex of mandible vertical, with teeth distinctly stronger ventrally. Malar space very small. Dorsal setae of head about as long as flagellar width or scarcely longer. Frons with shallow, uneven punctures, 1–3 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; occipital margin not carinate but forming a pronounced ridge. Lateral ocelli distinctly separate from vertex crest by less than ocellus length. Ocellar triangle anterior angle weakly to strongly acute. Head more or less parallel-sided for some distance posterior to eyes. Eye setae moderate, about as long as 2–3 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 to nearly flat 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 posterolaterally, coriaceous ventrally, with broad band of tesselate-colliculate sculpture extending diagonally from anterior margin of eye to posteroventral margin of head. Postgenal depression absent. Antenna short, scarcely extending beyond head.</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; 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>COLOR. Body entirely dark brown to black. Antenna brown on base of scape and apical flagellomeres, yellow medially. Mandible black. Coxae and femora dark brown to black, tibiae brown, tarsi yellow.</p><p>WINGS. Membrane tinged with yellow. Basal cells of fore wing sparsely setose, cell R somewhat densely setose apically. 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 1.90 mm; LM 0.95 mm; WH/LH 0.71; DH/LH 0.49; EV/HE 1.03; EV/WF 0.95; WF/HE 1.07; WH/WF 1.67; OOL/WOT 1.82; DM/LM 0.33; FL/FW 1.99; HFL/HFW 2.22; A3 L/ W 0.90; 2R1 L/ W 2.78.</p><p><b>Distribution</b></p><p>South Australia; known only from the holotype, collected near Adelaide.</p><p><b>Remarks</b></p><p>The unique type is missing the metasoma, but based on the appearance of the head and mandibles it is almost certainly a female.</p> |
| title | Sierola camptostega Magnacca, 2026, sp. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Hymenoptera Bethylidae Sierola Sierola camptostega |
| url | https://doi.org/10.5281/zenodo.19566182 |