Details of Trematosphindus newtoni gen. et sp. nov., holotype, NIGP175114, under confocal microscopy. A: Head, anteroventral view. B: Prothorax, ventral view. C: Fore legs. D: Posterior portion of metathorax and anterior portion of abdomen, ventral view. E: Posterior portion of abdomen, ventral view. F: Head, dorsolateral view, with arrowhead showing the cavity at anterior pronotal angle. G: Prothorax, dorsal view. H: Elytral base, dorsal view. I: Elytral apex and pygidium, posterodorsal view, with arrowhead showing the distinct median groove on pygidium. Abbreviations: an, antenna; cl, clypeus; el, elytron; fr, frons; lbp, labial palp; md, mandible; mtf, metafemur; mttb, metatibia; mtts, metatarsus; mtv, metaventrite; mxp, maxillary palp; pc, procoxa; pf, profemur; pn, pronotum; ps, prosternum; ptb, protibia; sc, scutellum; v1–5, ventrites 1–5. Scale bars: 200 μm.

  Part of: Li Y-D, Tihelka E, Liu Z-H, Huang D-Y, Cai C (2021) New mid-Cretaceous cryptic slime mold beetles and the early evolution of Sphindidae (Coleoptera: Cucujoidea). Arthropod Systematics & Phylogeny 79: 587-597.