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Type: Article
Published: 2021-09-29
Page range: 139-152
Abstract views: 380
PDF downloaded: 52

Definitions of two species groups of Stenothemus Bourgeois (Coleoptera, Cantharidae), with descriptions of three new species from China

The Key Laboratory of Zoological Systematics and Application, School of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding 071002, Hebei Province, China.
Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
The Key Laboratory of Zoological Systematics and Application, School of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding 071002, Hebei Province, China.
The Key Laboratory of Zoological Systematics and Application, School of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding 071002, Hebei Province, China.
Coleoptera comparative morphology genitalia of both sexes new species Oriental region

Abstract

Two new species-groups of the cantharid genus Stenothmeus Bourgeois are defined, S. laterophysus species-group and S. notaticollis species-group. The S. laterophysus species-group is composed of two species, including S. laterophysus Švihla, 2004 and a new species, S. nigritibius Y. Yang et H. Liu, sp. nov., and characterized by the pitch black elytra and bicolored legs, the subrounded pronotum with widely rounded anterior angles and projecting posterior angles, male genitalia with slender ventral processes of parameres which are slightly bent inwards at apical parts, laterophyses tilting ventrally at an angle of more than 45° with dorsal plates, compressed at apical parts, as well as the slender spermathecal duct, extremely long spermatheca and diverticulum. The S. notaticollis species-group consists of five species, including S. notaticollis (Gorham, 1895), S. bourgeoisi Wittmer, 1974, S. tamil Švihla, 2011 and two new species, S. parameratus Y. Yang et S. Ge, sp. nov. and S. acutiapicis Y. Yang et X. Yang, sp. nov., which is differentiated from the S. laterophysus species-group by the more variable body coloration, elytra pitch black or black brown or pale-yellow, male genitalia with thick or flattened ventral processes of parameres which are diverging apically, laterophyses parallel to dorsal plates, expanded at apices, as well as the stout spermathecal duct, moderately long spermatheca and diverticulum. The above species are illustrated with photographs of habitus, male genitalia, abdominal sternites and internal genitalia of female. A key for the identification of these species is provided and a distribution map is presented.

 

References

  1. Allaby, M. (1999) A Dictionary of Zoology. Oxford University Press, Oxford, 979 pp.
    Brancucci, M. (1980) Morphologie comparée, évolution et systématique des Cantharidae (Insecta: Coleoptera). Entomologica Basiliensia, 5, 215‒388.
    Bourgeois, J. (1907a) Sur quelques Malacodermes de l’Inde. Annales de la Société Entomologique de Belgique, 61, 292‒293.
    Bourgeois, J. (1907b) Malacodermes du sud de l’Inde. Annales de la Société Entomologique de Belgique, 51, 99‒105.
    Champion, G. C. (1926) Some Indian (and Tibetan) Coleoptera (20). The Entomologist’s Monthly Magazine, 62, 194‒210.
    Delkeskamp, K. (1977) Pars 165. Fasc. 1. Editio seconda. Cantharidae. In: Wilcox, J.A. (Ed.), Coleopterorum Catalogus Supplementa. W. Junk, The Hague, pp. 1–485.
    Ge, S.-J., Liu, H.-Y., Yang, X.-K. & Yang, Y.-X. (2021a) Five new species of Stenothemus Bourgeois from Guangxi, China (Coleoptera, Cantharidae), Journal of Asia-Pacific Entomology, 744, 119‒144. https://doi.org/10.1016/j.aspen.2021.05.012
    Ge, S.-J., Yang, X.-K., Liu, H.-Y. & Yang, Y.-X. (2021b) Studies on the Stenothemus harmandi species group (Coleoptera, Cantharidae), with descriptions of two new species from China, Biodiversity Data Journal, 9, e68659. https://doi.org/10.3897/BDJ.9.e68659
    Gorham, H.-S. (1895) List of the Coleoptera in the collection of H. E. Andrews Esq. from India and Burma, with descriptions of new species and notes. Families: Malacodermata—Erotylidae—Endomychidae. Annales de la Société Entomologique de Belgique, 39, 293‒330.
    Hsiao, Y. (2015) Description of two new species of the genus Stenothemus from Taiwan (Coleoptera: Cantharidae). Zootaxa, 3937 (2), 386‒392. https://doi.org/10.11646/zootaxa.3937.2.9
    Hsiao, Y., Okushima, Y. & Yang, P.-S. (2016) Review of the genus Stenothemus Bourgeois from Taiwan, with description of three new species (Coleoptera: Cantharidae) and additional distributional records of previously known species. Zootaxa, 4117 (1), 101–114. https://doi.org/10.11646/zootaxa.4117.1.5
    Kazantsev, S. & Brancucci, M. (2007) Cantharidae. In: Löbl, I. & Smetana, A. (Eds.), Catalogue of Palaearctic Coleoptera. Vol. 4. Apollo Books, Stenstrup, pp. 234–298.
    Okushima, Y. (2005) A taxonomic study on the genus Lycocerus (Coleoptera, Cantharidae) from Japan, with zoogeographical considerations. Japanese Journal of Systematic Entomology, Monographic Series 2, 1‒383.
    Okushima, Y. & Satô, M. (1997) Two new species of the genus Stenothemus (Coleoptera, Cantharidae) from Taiwan. Elytra, 25 (1), 85‒91.
    Okushima, Y. & Satô, M. (1999) Cantharid beetles of the genus Stenothemus (Coleoptera, Cantharidae) from Taiwan. Elytra, 27 (1), 131‒140.
    Švihla, V. (2004) New taxa of the subfamily Cantharinae (Coleoptera, Cantharidae) from southeastern Asia with notes on other species. Entomologica Basiliensia, 26, 155‒238.
    Švihla, V. (2005) New taxa of the subfamily Cantharinae (Coleoptera: Cantharidae) from south-eastern Asia with notes on other species II. Acta Entomologica Musei Nationalis Pragae, 45, 71‒110.
    Švihla, V. (2006) New species of the family Cantharidae (Insecta: Coleoptera) from Nepal. In: Hartmann, M. & Weipert, J. (Eds.), Biodiversität und Naturausstatung im Himalaya II. Verein der Freunde und Förderer des Naturkundemuseums Erfurt e. V., Erfurt, pp. 457‒461.
    Švihla, V. (2011) New taxa of the subfamily Cantharinae (Coleoptera: Cantharidae) from south-eastern Asia, with notes on other species III. Zootaxa, 2895 (1), 1‒34. https://doi.org/10.11646/zootaxa.2895.1.1
    Wittmer, W. (1974) Zur Kenntnis der Gattung Stenothemus Bourg. (Col. Cantharidae). Mitteilungen der Schweizerischen Entomologischen Gesellschaft, 47 (1‒2), 49‒62.
    Yang, Y.-X., Su, J.-Y. & Yang, X.-K. (2014) Review of the Stenothemus harmandi species-group (Coleoptera, Cantharidae), with description of six new species from China. Zootaxa, 3847 (2), 203‒220. https://doi.org/10.11646/zootaxa.3847.2.2
    Yang, Y.-X., Ge, S.-J., Yang, X.-K. & Liu, H.-Y. (2021a) Review of the Stenothemus species from Southeast China. European Journal of Taxonomy, 744, 119‒144. https://doi.org/10.5852/ejt.2021.744.1307
    Yang, Y.-X, Ge, S.-J., Yang, X.-K. & Liu, H.-Y. (2021b) Taxonomic revision of Stenothemus species from Southwest China (Coleoptera, Cantharidae). European Journal of Taxonomy, 757, 1‒36. https://doi.org/10.5852/ejt.2021.757.1409

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