Carinibipogonia Li, Kundrata & Cai, 2022

Li, Yan-Da, Kundrata, Robin, Huang, Di-Ying & Cai, Chen-Yang, 2022, First Artematopodidae from mid-Cretaceous amber of northern Myanmar (Coleoptera: Elateroidea), Zootaxa 5129 (2), pp. 257-271 : 265

Genus Carinibipogonia Li, Kundrata & Cai gen. nov.

Type species. Carinibipogonia xiai sp. nov., here designated.

Etymology. The generic name is based on the latin “ carina ” referring to its paired prosternal carinae and the name Bipogonia . The name is feminine in gender.

Diagnosis. Antennomeres distinctly serrate, less than twice as long as wide ( Fig. 10G ). Anterior edge of frontoclypeus dentate ( Fig. 10F ). Mandibles with subapical tooth ( Fig. 10F ). Apical maxillary palpomere not clearly expanded apically ( Fig. 10A, F ). Prosternum in front of coxae with paired longitudinal ridges; ridges not extending to anterior half of prosternum ( Fig. 10B ). Elytra with 10 puncture rows. Inner posterobasal angle of radial cell almost right ( Fig. 9C ).

Description. Since this genus is monotypic, see the species description below.

Remarks. Carinibipogonia gen. nov. is generally very similar to Bipogonia gen. nov. Both genera share the anteriorly dentate frontoclypeus, strongly serrate antennae, and mandibles with a subapical tooth. The only major difference between them appears to be the presence of paired prosternal ridges in Carinibipogonia . The prosternal ridges generally extend to the anterior margin of prosternum in other artematopodids with prosternal ridges. However, in Carinibipogonia , the ridges disappear in the anterior half of prosternum. Carinibipogonia xiai sp. nov. differs from B. fortis sp. nov. additionally in having a more elongated radial cell. However, this character state cannot be observed in B. trivialis sp. nov. since the hind wings are not exposed in the available specimens.

Figures

FIGURE 9. Details of Carinibipogonia xiai Li, Kundrata & Cai gen. et sp. nov., holotype, NIGP179432, under widefield fluorescence. A, Head and prothorax, dorsal view. B, Head and prothorax, ventral view. C, Hind wing, dorsal view. D, Abdomen, ventral view. E, Elytron, ventral view.Abbreviations: an, antenna; el, elytron; lbp, labial palp; md, mandible; mt, mentum; mxp, maxillary palp; pn, pronotum; ps, prosternum; ptb, protibia; R, radial cell; v1–5, ventrites 1–5. Scale bars: 500 μm.

FIGURE 10. Details of Carinibipogonia xiai Li, Kundrata & Cai gen. et sp. nov., holotype, NIGP179432, under confocal microscopy. A, Head, ventral view. B, Prothorax, ventral view, showing the paired longitudinal ridges (arrowhead). C, Fore and mid legs. D, Elytral apex, showing the interlocking tongue (arrowhead). E, Abdominal apex, ventral view. F, Head, dorsal view. G, Antenna, dorsal view. H, Elytron, dorsal view. I, Ovipositor, dorsal view. Abbreviations: a1–11, antennomeres 1–11; cl, clypeus; gs, gonostylus; lbp, labial palp; md, mandible; mstb, mesotibia; msts, mesotarsus; mt, mentum; ps, prosternum; ptb, protibia; pts, protarsus; v5, ventrite 5. Scale bars: 300 μm.