Taxonomic revision of the species of Stenothemus from Southwest China (Coleoptera, Cantharidae), with the descriptions of five new species

  • Yuxia Yang 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 https://orcid.org/0000-0002-3118-6659
  • Shujuan Ge 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
  • Xingke Yang Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
  • Haoyu Liu 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.
Keywords: Stenothemus, new species, new combination, new synonymy, new status

Abstract

The species of Stenothemus Bourgeois, 1907 from Southwest China are reviewed. Three species are transferred to this genus, S. davidi (Pic, 1926) comb. nov. (from Malthacus Kirby, 1837), S. minutissimus (Pic, 1933) comb. nov. (from Micropodabrus Pic, 1920) and S. singularicollis (Pic, 1933) comb. nov. (from Lycocerus Gorham, 1895). Two new synonyms are suggested, S. dinshuiensis Švihla, 2011 syn. nov. is synonymized with S. davidi and S. melleus Švihla, 2005 syn. nov. with S. singularicollis. Stenothemus shaanxiensis Švihla, 2004 stat. nov. is raised to species level from a subspecies of S. benesi Švihla, 2004. Five new species are described, S. gracilis Y. Yang & X. Yang sp. nov., S. chongqingensis Y. Yang & H. Liu sp. nov., S. flavicollis Y. Yang & S. Ge sp. nov., S. jindraimimus Y. Yang & X. Yang sp. nov. and S. laticornis Y. Yang & H. Liu sp. nov., which are illustrated with photographs of habitus, aedeagi, abdominal sternites VIII and internal genitalia of the female. Characters of the female reproductive system are described for the first time for the following species: S. diffusus Wittmer, 1974, S. dundai Švihla, 2004, S. grahami Wittmer, 1974, S. jindrai Švihla, 2004, S. tryznai Švihla, 2004 and S. singularicollis. Some additional distribution information is added for previously known species. A key for the identification of all studied species is provided.

References

Brancucci M. 1980. Morphologie comparée, évolution et systématique des Cantharidae (Insecta: Coleoptera). Entomologica Basiliensia 5: 215‒388.

Delkeskamp K. 1977. Cantharidae. Editio seconda. In: Wilcox J.A. (ed.) Coleopterorum Catalogus Supplementa 165 (1): 1‒485. W. Junk, The Hague.

Ge S.J., Liu H.Y., Yang X.K. & Yang Y.X. 2021. Five new species of Stenothemus Bourgeois from Guangxi, China (Coleoptera, Cantharidae). Journal of Asia-Pacific Entomology. https://doi.org/10.1016/j.aspen.2021.05.012

Kazantsev S.V. & Brancucci M. 2007. Cantharidae. In: Löbl I & Smetana A. (eds) Catalogue of Palaearctic Coleoptera, Vol. 4: 234‒298. Apollo Books, Stenstrup.

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. 1999. Cantharid beetles of the genus Stenothemus (Coleoptera, Cantharidae) from Taiwan. Elytra 27 (1): 131‒140.

Paschini T.V. & Martin G.F. 2017. The insect spermatheca: an overview. Zoology 121: 56 ‒71. https://doi.org/10.1016/j.zool.2016.12.001

Pic M. 1926. Nouveaux coléoptères exotiques. Bulletin du Muséum d’histoire naturelle 32: 354‒359.

Pic M. 1933a. Schwedisch-chinesische wissenschaftliche Expedition nach den nordwestlichen Provinzen Chinas unter Leitung von Dr. Sven Hedin und Prof. Sü Ping-chang. Insekten gesammelt vom schwedischen Arzt der Expedition Dr. David Hummel 1927‒1930. 16. Coleoptera. 2. Helmidae, Dermestidae, Anobiidae, Cleridae, Malaeodermata, Dascillidae, Heteromera (ex p.), Bruchidae, Cerambycidae, Phytophaga (ex p.). Arkiv för Zoologi A27 (2): 1‒14.

Pic M. 1933b. Malacodermes exotiques. L’Échange, Revue Linnéenne 49 [hors-texte] (451‒454): 109‒112, 113‒116, 117‒120.

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. 2011. New taxa of the subfamily Cantharinae (Coleoptera: Cantharidae) from south-eastern Asia, with notes on other species III. Zootaxa 2895: 1‒34. https://doi.org/10.11646/zootaxa.2895.1.1

Takahashi K. 2007. Taxonomic status of Malthacus (Coleoptera, Cantharidae). Japanese Journal of Systematic Entomology 13 (2): 241‒256.

Wittmer W. 1954. 13. Beitrag zur Kenntnis der indo-malayischen Malacodermata (Coleoptera). Philippine Journal of Science 83 (1): 75‒81.

Wittmer W. 1969. Synonymische und systematische Notizen über Coleopteren. Mitteilungen der Schweizerischen Entomologischen Gesellschaft 42 (1‒2): 126‒134.

Wittmer W. 1972. Beitrag zur Kenntnis der palaearktischen Cantharidae und Malachiidae (Col.). Entomologische Arbeiten aus dem Museum G. Frey 23: 122‒141.

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., Ge S., Yang X. & Liu H. 2021. Review of the species of Stenothemus from Southeast China (Coleoptera, Cantharidae). European Journal of Taxonomy 744 (1): 119–144. https://doi.org/10.5852/ejt.2021.744.1307

Published
2021-06-25
How to Cite
Yang, Y., Ge, S., Yang, X., & Liu, H. (2021). Taxonomic revision of the species of Stenothemus from Southwest China (Coleoptera, Cantharidae), with the descriptions of five new species. European Journal of Taxonomy, 757(1), 1–36. https://doi.org/10.5852/ejt.2021.757.1409
Section
Research article