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Bibliographic Details
Main Author:	Magnacca, Karl
Format:	Recurso digital
Language:
Published:	Zenodo 2026
Subjects:	Biodiversity Taxonomy Animalia Arthropoda Insecta Hymenoptera Bethylidae Sierola Sierola lophotes
Online Access:	https://doi.org/10.5281/zenodo.19566620
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Sierola lophotes sp. nov.urn:lsid:zoobank.org:act: FA0ADF84-3D43-4DFD-81C1-B5BB5F8AF421Figs 108, 119DiagnosisPart of the large complex of species with the head convex dorsally, basal wing cells setose, and head compressed. Separated from similar species by the elongate, conspicuous vertex and gena setae, moderately compressed head (DH/LH ~0.51), densely setose basal wing cells, and broadly rounded occipital margin. Closest to S. gingera sp. nov. and S. paraptoma sp. nov.; separated from the former by the narrower mandible and ocellar triangle right to weakly obtuse, from the latter by the less strongly convex head and propodeum lacking a median polished area, and from both by the reddish brown mandible and DH/LH.EtymologyFrom the Greek ‘ lophos ’, ‘ridge’, referring to the type locality. It is a noun in apposition.Type materialHolotypeAUSTRALIA – Queensland • &female;; Acacia Ridge, Brisbane; Oct. 1976; E.C. Dahms leg.; Malaise trap; QM T262164.ParatypeAUSTRALIA – Queensland • 1 &female;; Teewah, Cooloola; 15–16 Aug. 1981; G. Sarnes leg.; QM.DescriptionFemaleHEAD. Clypeal process semicircular to semi-elliptical, apex rounded; dorsally weakly carinate; in profile evenly curved from base to apex, apical angle slightly acute. Mandible narrow, more or less parallel-sided except at base; not twisted, at most weakly convex outwardly, outwardly shining but with distinct, fine microsculpture; in ventral view weakly curved. Apex of mandible vertical, with equally strong teeth. Malar space almost absent. Dorsal setae of head about as long as flagellar width or scarcely longer. Frons with shallow punctures, dense near antennae, 2–3 pit widths apart posterior of midpoint of eyes. Vertex and gena setae conspicuous, nearly twice as long as setae of frons and stronger, erect and directed anterior. Frons microsculpture finely microreticulate, surface weakly matte. Vertex in dorsal view more or less straight; occipital margin broadly rounded. Lateral ocelli nearly touching vertex crest. Ocellar triangle anterior angle right to weakly obtuse. 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 flat in lateral view, with relatively sparse setae. Genal angle broadly rounded. 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 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 very shallow, nearly absent. Antenna extending to pronotum.MESOSOMA. Anterior margin of dorsal pronotal area in lateral view evenly rounded. Pronotal setae about as long as flagellar width or scarcely longer. Propodeal disc laterally coarsely striate; median carina absent; 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.METASOMA. Shining, with faint microsculpture laterally. S4–6 each with a pair of moderately long erect setae, those on S6 twice as long as others. Sixth sternum broadly glabrous medially, with sparse setae laterally.COLOR. Body entirely dark brown to black. Antenna brown on base of scape and apical flagellomeres, yellow medially. Mandible reddish brown. Coxae and femora brown, tibiae, tarsi, and trochanters yellow.WINGS. Membrane tinged with yellow. Basal cells of fore wing densely and conspicuously setose. Cell 1M weakly convex posteriorly, corner posteroapical. Distal portion of vein Rs nearly straight, meeting anterior wing margin at right angle.MEASUREMENTS. LFW 1.19 mm; LM 0.66 mm; WH/LH 0.85; DH/LH 0.51; EV/HE 0.54; EV/WF 0.54; WF/HE 1.00; WH/WF 1.79; OOL/WOT 1.20; DM/LM 0.33; FL/FW 1.85; HFL/HFW 2.06; A3 L/ W 0.85; 2R1 L/ W 3.18.DistributionQueensland; known from two specimens collected in the southeast.RemarksAlthough not particularly long or dense, the pale head setae of this species are unusually conspicuous.

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