Abstract
A new genus and a new species of erotine net-winged beetles, Damzenium rivnense gen., sp. nov., are described from late Eocene Rovno amber of Ukraine. The new taxon is placed in the tribe Erotini (Lycidae: Erotinae) based on the general appearance, structure of pronotal carinae and elytral costae. Its elytral primary costa 3 is very stout and forms the humeral edge. Primary costa 4 is weak and we have not been able to clearly identify regular four rows of cells in the wide external interstice. Similar modification of elytral longitudinal costae is known from the related tribe Dictyopterini. This discovery increases the number of Baltic and Rovno amber taxa of Lycidae to six genera and seven species. Remarkably, five genera and six species of these belong in the subfamily Erotinae, which has never been reported from other amber deposits. This quite species-poor group of net-winged beetles is still represented almost exclusively in the Holarctic fauna.
References
Alekseev, V.I. (2017) Coleoptera from the middle-upper Eocene European ambers: generic composition, zoogeography and climatic implications. Zootaxa, 4290 (3), 401–443. https://doi.org/10.11646/zootaxa.4290.3.1
Bocak, L. & Bocakova, M. (1987) Notes on the taxonomy of some European species of the family Lycidae (Coleoptera). Acta Entomologica Bohemoslovaca, 84, 111–121.
Ferreira, V.S., Solodvnikov, A., Ivie, M.A. & Kundrata, R. (2022) Dominican Amber Net-Winged Beetles suggest stable Paleoenvironment as a driver for Conserved Morphology in a Paedomorphic lineage. Scientific Reports, 12, 5820. https://doi.org/10.1038/s41598-022-09867-6
Greenwood, D.R. & Wing, S.L. (1995) Eocene continental climates and latitudinal temperature gradients. Geology, 23 (11), 1044–1048. https://doi.org/10.1130/0091-7613(1995)023%3C1044:ECCALT%3E2.3.CO;2
Kazantsev, S.V. (1997) A recent species of the fossil genus Kolibaceum Winkler (Coleoptera, Lycidae) from Eastern China. Entomologica Basiliensia, 20, 159–164.
Kazantsev, S.V. (2004) Phylogeny of the tribe Erotini (Coleoptera, Lycidae), with descriptions of new taxa. Zootaxa, 496 (1), 1–48. https://doi.org/10.11646/zootaxa.496.1.1
Kazantsev, S.V. (2005) Morphology of Lycidae with some considerations on evolution of the Coleoptera. Elytron, 2004, 17–18 et Coleopterological Monographs, 3, 73–248.
Kazantsev, S.V. (2011) An annotated checklist of Cantharoidea (Coleoptera) of Russia and adjacent territories. Russian Entomological Journal, 20 (4), 387–410. https://doi.org/10.15298/rusentj.20.4.05
Kazantsev, S.V. (2012) A review of Erotinae and Dictyopterinae (Lycidae, Coleoptera), with description of new taxa and a note on biogeography of the subfamilies. Russian Entomological Journal, 21 (4), 395–414. https://doi.org/10.15298/rusentj.21.4.05
Kazantsev, S.V. (2013) A new fossil genus of net-winged beetles, with a brief review of amber Lycidae (Insecta: Coleoptera). Zootaxa, 3608 (1), 94–100. https://doi.org/10.11646/zootaxa.3608.1.8
Kazantsev, S.V. (2019) Protolycus gedaniensis gen. n., sp. n., the first Baltic amber representative of Lycini (Coleoptera, Lycidae, Lycinae). Palaeoentomology, 3 (1), 327–332. https://doi.org/10.11646/palaeoentomology.2.4.5
Kazantsev, S.V. (2020) First fossil representative of the net-winged beetles genus Plateros Bourgeois, 1879 (Insecta: Coleoptera: Lycidae) from Mexican amber, with redescription of Electropteron avus gen. n., sp. n. from Dominican amber and a note on the time of origin of the family. Russian Entomological Journal, 29 (4), 377–387. https://doi.org/10.15298/rusentj.29.4.04
Kazantsev, S.V. (2021) New and little known taxa of neotenic lyropaeine net-winged beetles (Coleoptera: Lycidae). Zootaxa, 4965 (3), 437–460. https://doi.org/10.11646/zootaxa.4965.3.2
Kazantsev, S.V. & Perkovsky, E.E. (2022) Imprint of a Helcophorus Fairmaire, 1881: the first net-winged beetle (Coleoptera: Lycidae) from Rovno amber. Zootaxa, 5128 (1), 84–90. https://doi.org/10.11646/zootaxa.5128.1.4
Kleine, R. (1933) Pars 123: Lycidae. Coleopterorum Catalogus auspiciis et auxilio W. Junk editus a Schenkling. W. Junk, Berlin, 145 pp.
Kleine, R. (1940) Eine Lycidae aus dem Baltischen Bernstein. Entomologische Blätter, 36 (6), 179–180.
Kleine, R. (1941) Nachtrag zu meiner Arbeit: “Eine Lycidae aus dem baltischen Bernstein”. Entomologische Blätter, 37, 47.
Klebs, R. (1910) Über Bernstein Einschlüsse im allgemeinen und die Coleopteren meiner Bernsteinsammlung. Schriften der Physikalisch-ökonomischen Gesellschaft zu Königsberg, 51 (3), 217–242.
Kusy, D., Motyka, M., Bocek, M., Masek, M. & Bocak, L. (2019) Phylogenomic analysis resolves the relationships among net-winged beetles (Coleoptera: Lycidae) and reveals the parallel evolution of morphological traits. Systematic Entomology, 44 (4), 911–925. https://doi.org/10.1111/syen.12363
Li, Y., Pang, H. & Bocak, L. 2017. The taxonomy of neotenic net-winged beetles from China based on morphology and molecular data (Coleoptera: Lycidae). Annales Zoologici, Warszawa, 67 (4), 679–687. https://doi.org/10.3161/00034541ANZ2017.67.4.005
Masek, M., Motyka, M., Kusy, D., Bocek, M., Li ,Y. & Bocak, L. (2018) Molecular Phylogeny, Diversity and Zoogeography of Net-Winged Beetles (Coleoptera: Lycidae). Insects, 9, 154. https://doi.org/10.3390/insects9040154
Motyka, M., Kusy, D., Bocek, M., Bilkova, R., Vogler, A. P. & Bocak, L. (2021a). Phylogenomic and mitogenomic data can accelerate inventorying of tropical beetles during the current biodiversity crisis. eLife, 10, e71895 https://doi.org/10.7554/eLife.71895
Motyka, M., Kusy, D., Masek, M., Bocek, M., Li, Y., Bilkova, R., Kapitán, J., Yagi, T. & Bocak, L. (2021b) Conspicuousness, phylogenetic structure, and origins of Müllerian mimicry in 4000 lycid beetles from all zoogeographic regions. Scientific Reports, 11 (5961), 1–19. https://doi.org/10.1038/s41598-021-85567-x
Nakane, T. (1969) Fauna Japonica. Lycidae (Insecta: Coleoptera). Academic Press of Japan, Tokyo, 224 + viii pp., 8 pls.
Winkler, J.R. (1987) Three new genera of fossil Lycidae from Baltic Amber. Mitteilungen der Münchner Entomologischen Gesellschaft, 77, 61–78.
Zachos, J., Pagani, M., Sloan, L., Thomas, E. & Billups, K. (2001) Trends, rhythms, and aberrations in global climate 65 Ma to present. Science, 292, 686–693. https://doi.org/10.1126/science.1059412