Skip to main content Skip to main navigation menu Skip to site footer
Article
Published: 2022-04-29

Rhomeocalpsua torosa gen. et sp. nov., a unique lineage of Endomychidae from mid‑Cretaceous Burmese amber (Coleoptera: Coccinelloidea)

State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, and Centre for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing 210008, China; School of Earth Sciences, University of Bristol, Life Sciences Building, Tyndall Avenue, Bristol BS8 1TQ, UK
Museum and Institute of Zoology, Polish Academy of Sciences, Wilcza 64, 00-679 Warszawa, Poland
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, and Centre for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing 210008, China
Museum and Institute of Zoology, Polish Academy of Sciences, Wilcza 64, 00-679 Warszawa, Poland
Coleoptera Coccinelloidea Endomychidae Merophysiinae Anamorphidae fossil Cretaceous Burmese amber

Abstract

A new fossil genus and species of the family Endomychidae, Rhomeocalpsua torosa Li, Tomaszewska & Cai, gen. et sp. nov., is described and illustrated from the mid-Cretaceous Burmese amber. The new genus is characterised by the relatively elongate body, antennae composed of nine antennomeres with unique club morphology, unmodified pronotum, mesocoxal cavities broadly closed laterally, femora with deep and long grooves, and 3-3-3 tarsi. Detailed morphological comparisons between the Cretaceous fossils and extant relatives suggest that its unique character combination does not fit into any existing subfamilies of Endomychidae, Mycetaeidae, Eupsilobiidae or Anamorphidae.

References

  1. Alekseev, V.I. & Tomaszewska, W. (2018) New handsome fungus beetles (Coleoptera: Coccinelloidea: Anamorphidae, Endomychidae) from European amber of the Upper Eocene. Palaeontologia Electronica, 21.1.6A, 1–23. https://doi.org/10.26879/832
  2. Arriaga-Varela, E., Tomaszewska, W., Huo, L. & Seidel, M. (2018) On Neotropical Merophysiinae with descriptions of a new genus and new species (Coleoptera, Endomychidae). ZooKeys, 736, 1–41. https://doi.org/10.3897/zookeys.736.21628
  3. Cai, C.Y., Engel, M.S., Newton, A.F., Eldredge, K.T. & Huang, D.Y. (2017a) Early evolution of specialized termitophily in Cretaceous rove beetles. Current Biology, 27, 1229–1235. https://doi.org/10.1016/j.cub.2017.03.009
  4. Cai, C.Y., Leschen, R.A.B., Hibbett, D.S., Xia, F.Y. & Huang, D.Y. (2017b) Mycophagous rove beetles highlight diverse mushrooms in the Cretaceous. Nature Communications, 8, 14894. https://doi.org/10.1038/ncomms14894
  5. Cai, C.Y., Escalona, H.E., Li, L.Q., Yin, Z.W., Huang, D.Y. & Engel, M.S. (2018) Beetle pollination of cycads in the Mesozoic. Current Biology, 28, 2806–2812. https://doi.org/10.1016/j.cub.2018.06.036
  6. Cai, C.Y., Clarke, D.J., Yin, Z.W., Fu, Y.Z. & Huang, D.Y. (2019a) A specialized prey-capture apparatus in mid-Cretaceous rove beetles. Current Biology, 29, R116–R117. https://doi.org/10.1016/j.cub.2019.01.002
  7. Cai, C.Y., Lawrence, J.F., Yamamoto, S., Leschen, R.A., Newton, A.F., Ślipiński, A., Yin, Z.W., Huang, D.Y. & Engel, M.S. (2019b) Basal polyphagan beetles in mid-Cretaceous amber from Myanmar: biogeographic implications and long-term morphological stasis. Proceedings of the Royal Society B, 286, 20182175. https://doi.org/10.1098/rspb.2018.2175
  8. Cai, C.Y., Tihelka, E., Giacomelli, M., Lawrence, J.F., Ślipiński, A., Kundrata, R., Yamamoto, S., Thayer, M.K., Newton, A.F., Leschen, R.A.B., Gimmel, M.L, Lü, L., Engel, M.S., Bouchard, P., Huang, D.Y., Pisani, D. & Donoghue, P.C.J. (2022) Integrated phylogenomics and fossil data illuminate the evolution of beetles. Royal Society Open Science, 9, 211771. https://doi.org/10.1098/rsos.211771
  9. Fu, Y.Z., Li, Y.D., Su, Y.T., Cai, C.Y. & Huang, D.Y. (2021) Application of confocal laser scanning microscopy to the study of amber bioinclusions. Palaeoentomology, 4 (3), 266–278. https://doi.org/10.11646/palaeoentomology.4.3.14
  10. Gimmel, M.L., Szawaryn, K., Cai, C.Y. & Leschen, R.A. (2019) Mesozoic sooty mould beetles as living relicts in New Zealand. Proceedings of the Royal Society B, 286, 20192176. https://doi.org/10.1098/rspb.2019.2176
  11. Li, Y.D., Liu, Z.H., Jarzembowski, E.A., Yin, Z.W., Huang, D.Y. & Cai, C.Y. (2019) Early evolution of Cupedidae revealed by a mid-Cretaceous reticulated beetle from Myanmar (Coleoptera: Archostemata). Systematic Entomology, 44, 777–786. https://doi.org/10.1111/syen.12355
  12. Li, Y.D., Yamamoto, S., Huang, D.Y. & Cai, C.Y. (2020) A miniaturized ommatid beetle in mid-Cretaceous Burmese amber (Coleoptera: Archostemata: Ommatidae). Papéis Avulsos de Zoologia, 60, e20206063. https://doi.org/10.11606/1807-0205/2020.60.63
  13. Li, Y.D., Kundrata, R., Tihelka, E., Liu, Z.H., Huang, D.Y. & Cai, C.Y. (2021a) Cretophengodidae, a new Cretaceous beetle family, sheds light on the evolution of bioluminescence. Proceedings of the Royal Society B, 288, 20202730. https://doi.org/10.1098/rspb.2020.2730
  14. Li, Y.D, Kundrata, R., Packova, G., Huang, D.Y. & Cai, C.Y. (2021b) An unusual elateroid lineage from mid-Cretaceous Burmese amber (Coleoptera: Elateroidea). Scientific Reports, 11, 21985. https://doi.org/10.1038/s41598-021-01398-w
  15. Li, Y.D., Tihelka, E., Dahan, L., Huang, D.Y. & Cai, C.Y. (2021c) On the Nosodendridae from mid-Cretaceous amber of northern Myanmar (Coleoptera: Nosodendroidea). Zootaxa, 5082 (3), 223–244. https://doi.org/10.11646/zootaxa.5082.3.2
  16. Li, Y.D., Huang, D.Y. & Cai, C.Y. (2021d) New species of Omma Newman from mid-Cretaceous Burmese amber (Coleoptera, Archostemata, Ommatidae). Deutsche Entomologische Zeitschrift, 68, 341–348. https://doi.org/10.3897/dez.68.74174
  17. McKenna, D.D., Shin, S., Ahrens, D., Balke, M., Beza-Beza, C., Clarke, D.J., Donath, A., Escalona, H.E., Friedrich, F., Letsch, H., Liu, S., Maddison, D., Mayer, C., Misof, B., Murin, P.J., Niehuis, O., Peters, R.S., Podsiadlowski, L., Pohl, H., Scully, E.D., Yan, E.V., Zhou, X., Ślipiński, A. & Beutel, R.G. (2019) The evolution and genomic basis of beetle diversity. Proceedings of the National Academy of Sciences, USA, 116, 24729–24737. https://doi.org/10.1073/pnas.1909655116
  18. Pakaluk, J. & Ślipiński, S.A. (1990) Review of Eupsilobiinae (Coleoptera: Endomychidae) with descriptions of new genera and species from South America. Revue Suisse de Zoologie, 97, 705–728. https://doi.org/10.5962/bhl.part.79759
  19. Reike, H.P., Alekseev, V.I., Gröhn, C., Arlt, T. & Manke, I. (2020) First extinct species of the genus Holoparamecus (Coleoptera: Merophysiidae: Holoparamecinae) from Eocene amber deposits. Studies and Reports, Taxonomical Series, 16, 241–255.
  20. Robertson, J.A., Ślipiński, A., Moulton, M., Shockley, F.W., Giorgi, A., Lord, N.P., Mckenna, D.D., Tomaszewska, W., Forrester, J., Miller, K.B., Whiting, M.F. & McHugh, J.V. (2015) Phylogeny and classification of Cucujoidea and the recognition of a new superfamily Coccinelloidea (Coleoptera: Cucujiformia). Systematic Entomology, 40, 745–778. https://doi.org/10.1111/syen.12138
  21. Sasaji, H. (1978a) On the larva of a predaceous endomychid, Saula japonica Gorham (Coleoptera). Kontyû, Tokyo, 46, 24–28.
  22. Sasaji, H. (1978b) Notes on the Japanese Endomychidae, with an establishment of a new subfamily (Coleoptera). Memoirs of the Faculty of Education, Fukui University Series II (Natural Science), 28, 1–31.
  23. Sasaji, H. (1987) On the higher classification of the Endomychidae and their relative families (Coleoptera). Entomological Journal of Fukui, 1, 44–51.
  24. Sasaji, H. (1990) The family Mychothenidae of Japan (Coleoptera). Esakia, Spec. Issue 1, 65–75. https://doi.org/10.5109/2528
  25. Shockley, F.W., Tomaszewska, K.W. & McHugh, J.V. (2009a) An annotated checklist of the handsome fungus beetles of the world (Coleoptera: Cucujoidea: Endomychidae). Zootaxa, 1999 (1), 1–113. https://doi.org/10.11646/zootaxa.1999.1.1
  26. Shockley, F.W., Tomaszewska, K.W. & McHugh, J.V. (2009b) Review of the natural history of the handsome fungus beetles (Coleoptera: Cucujoidea: Endomychidae). Insecta Mundi, 72, 1–24.
  27. Shockley, F.W. & Alekseev, V.I. (2014) Glesirhanis bercioi, a new genus and species from Baltic amber (Coleoptera: Endomychidae: Leiestinae) with a checklist and nomenclatural notes regarding fossil Endomychidae. Zootaxa, 3755 (4), 391–400. https://doi.org/10.11646/zootaxa.3755.4.5
  28. Strohecker, H.F. (1978) The American species of Trochoideus (Coleoptera: Endomychidae). The Coleopterists Bulletin, 32, 349–354.
  29. Tihelka, E., Huang, D.Y. & Cai, C.Y. (2019) New notocupedin beetle in Cretaceous Burmese amber (Coleoptera: Archostemata: Ommatidae). Palaeoentomology, 2 (6), 570–575. https://doi.org/10.11646/palaeoentomology.2.6.5
  30. Tihelka, E., Li, L.Q., Fu, Y.Z, Su, Y.T., Huang, D.Y. & Cai, C.Y. (2021a) Angiosperm pollinivory in a Cretaceous beetle. Nature Plants, 7, 445–451. https://doi.org/10.1038/s41477-021-00893-2
  31. Tihelka, E., Li, Y.D., Huang, D.Y. & Cai, C.Y. (2021b) Are wounded-tree beetles living fossils? A new nosodendrid genus from Burmese amber with bilobed tarsi (Coleoptera: Nosodendridae). Palaeoentomology, 4 (1), 50–56. https://doi.org/10.11646/palaeoentomology.4.1.10
  32. Tomaszewska, K.W. (1999) A new genus and species of Epipocinae (Coleoptera: Endomychidae) from Pakistan. Revue Suisse de Zoologie, 106, 277–284. https://doi.org/10.5962/bhl.part.80078
  33. Tomaszewska, K.W. (2000a) Morphology, phylogeny and classification of adult Endomychidae (Coleoptera: Cucujoidea). Annales Zoologici, 50, 449–558.
  34. Tomaszewska, K.W. (2000b) A review and a phylogenetic analysis of the genera of Leiestinae (Coleoptera, Endomychidae). Mittelungen aus dem Museum für Naturkunde zu Berlin, Deutsche Entomologische Zeitschrift, 47, 65–86.
  35. Tomaszewska, K.W. (2005) Phylogeny and generic classification of the subfamily Lycoperdininae with a re-analysis of the family Endomychidae (Coleoptera, Cucujoidea). Annales Zoologici, 55 (Supplement 1), 1–172.
  36. Tomaszewska, W. (2010) Endomychidae Leach, 1815. In: Leschen, R.A.B., Beutel, R.G. & Lawrence, J.F. (Eds), Handbook of Zoology, Arthropoda: Insecta, Coleoptera, beetles, Vol. 2: morphology and systematics (Elateroidea, Bostrichiformia, Cucujiformia partim). Walter de Gruyter, Berlin and New York, pp. 442–454. https://doi.org/10.1515/9783110911213.442
  37. Tomaszewska, W. (2011) On African Eupsilobiinae (Coleoptera: Endomychidae) with descriptions of a new genus and species. Journal of Insect Science, 11, 166. https://doi.org/10.1673/031.011.16601
  38. Tomaszewska, W., Ślipiński, A., Bai, M., Zhang, W.W. & Ren, D. (2018) The oldest representatives of Endomychidae (Coleoptera: Coccinelloidea) from the Upper Cretaceous Burmese amber. Cretaceous Research, 91, 287–298. https://doi.org/10.1016/j.cretres.2018.07.001