Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 5837 No. 2: 23 Jun. 2026
Type: Article
Published: 2026-06-23
DOI: 10.11646/zootaxa.5837.2.2
Page range: 240-256
Abstract views: 85
PDF downloaded: 8

Two new species of Coecobrya Yosii (Collembola: Entomobryidae) from Yunnan, China

Department of Entomology; College of Plant Protection; Nanjing Agricultural University; Nanjing; China; State Key Laboratory of Agricultural and Forestry Biosecurity; College of Plant Protection; Nanjing Agricultural University; Nanjing; China
Department of Entomology; College of Plant Protection; Nanjing Agricultural University; Nanjing; China; State Key Laboratory of Agricultural and Forestry Biosecurity; College of Plant Protection; Nanjing Agricultural University; Nanjing; China
Department of Entomology; College of Plant Protection; Nanjing Agricultural University; Nanjing; China; State Key Laboratory of Agricultural and Forestry Biosecurity; College of Plant Protection; Nanjing Agricultural University; Nanjing; China
Department of Entomology; College of Plant Protection; Nanjing Agricultural University; Nanjing; China; State Key Laboratory of Agricultural and Forestry Biosecurity; College of Plant Protection; Nanjing Agricultural University; Nanjing; China
Collembola DNA barcode southwestern China cave-dwelling species chaetotaxy

Abstract

This study describes two new species of Coecobrya Yosii, 1956 (Collembola: Entomobryidae) from the Nangunhe National Nature Reserve in Yunnan, China: Coecobrya tianfucavica sp. nov., collected from bat guano inside a cave, is distinguished by the presence of macrochaeta m2i on abdominal segment I, only three macrochaetae each on abdominal segments II and III, and a highly reduced chaetotaxy on the posterior side of the ventral tube; and Coecobrya pentatriacra sp. nov., collected from forest litter and distinguished by its orange body markings and a unique chaetotaxy pattern of five central and three lateral macrochaetae on the tergite of abdominal segment IV. Both species belong to the tenebricosa-group. Molecular phylogenetic analysis based on the mitochondrial COI gene supports the independent status of both new species. The minimum genetic distances between each of them and their closely related species exceed the reported barcoding gap threshold for known species in Entomobryidae. This study provides detailed morphological descriptions, comparative analyses with similar species, and a phylogenetic tree and K2P genetic distance analysis based on DNA barcode data, thereby contributing to a better understanding of Coecobrya diversity in southwestern China.

References

  1. Baquero, E., Arbea, J.I., Nunes, E., Aguin-Pombo, D., Mateos, E. & Jordana, R. (2023) Collembola of the Cavalum and Landeiro Caves (Madeira, Portugal). Insects, 14 (6), 525. https://doi.org/10.3390/insects14060525
  2. Baquero, E., Jordana, R. & Fadrique, F. (2024) Two new species of Collembola (Arthropoda, Hexapoda) from Cova Urbana, a cave under a city. Subterranean Biology, 49, 163–184. https://doi.org/10.3897/subtbiol.49.120956
  3. Bellinger, P.F., Christiansen, K.A. & Janssens, F. (1996–2024) Checklist of the Collembola of the world. Available from: http://www.collembola.org (accessed 4 February 2026)
  4. Brook, G. (1882) On a new genus of Collembola (Sinella) allied to Degeeria Nicolet. Zoological Journal of the Linnean Society, 16 (95), 541–545. https://doi.org/10.1111/J.1096-3642.1882.TB02398.X
  5. Börner, C. (1913) Die Familien der Collembolen. Zoologischer Anzeiger, 41, 315–322.
  6. Chen, J.X. & Christiansen, K.A. (1997) Subgenus Coecobrya of the genus Sinella (Collembola: Entomobryidae) with special reference to the species of China. Annals of the Entomological Society of America, 90, 1–19. https://doi.org/10.1093/aesa/90.1.1
  7. Chen, J.X., Wang, F. & Christiansen, K.A. (2002) A New Species of the Subgenus Coecobrya from Hungary (Collembola: Entomobryidae). Journal of the Kansas Entomological Society, 75 (1), 43–47.
  8. Christiansen, K.A. (1960) The genus Sinella Brook in Nearctic caves. Annals of the Entomological Society of America, 53, 481–491. https://doi.org/10.1093/aesa/53.4.481
  9. Deharveng, L. (1990) Fauna of Thai caves. II. New Entomobryioidea Collembola from Chiang Dao cave, Thailand. Occasional Papers of the Bernice Pauahi Bishop Museum of Polynesian Ethnology and Natural History, 30, 279–287.
  10. Fjellberg, A. (1999) The labial palp in Collembola. Zoologischer Anzeiger, 237, 309–330.
  11. Folmer, O., Black, M., Hoeh, W., Lutz, R. & Vrijenhoek, R. (1994) DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine Biology and Biotechnology, 3 (5), 294–299.
  12. Gisin, H. (1967) Espèses nouvelles et lignées évolutives de Pseudosinella endogés. Memórias e Estudos do Museu Zoológico da Universidade de Coimbra, 301, 5–25.
  13. Handschin, E. (1926) Ost-Indische Collembolen. III. Beitrag zur Collembolenfauna von Java und Sumatra. Treubia, 8 (3–4), 446–461.
  14. Jordana, R. & Baquero, E. (2005) A proposal of characters for taxonomic identification of Entomobrya species (Collembola, Entomobryomorpha), with description of a new species. Abhandlungen und Berichte des Naturkundemuseums Goerlitz, 76, 117–134.
  15. Jordana, R. & Baquero, E. (2008) Coecobrya kennethi n. sp. (Collembola, Entomobryomorpha) and presence of Arrhopalites caecus (Tullberg, 1871) from Ana Roiho cave (Maunga Hiva Hiva), Rapa Nui-Easter Island. Euryale (Revista de ciencias - Zientziak aldizkaria), 2, 68–75.
  16. Katoh, K. & Standley, D.M. (2013) MAFFT multiple sequence alignment software version 7: Improvements in performance and usability. Molecular Biology and Evolution, 30 (4), 772–780. https://doi.org/10.1093/molbev/mst010
  17. Kimura, M. (1980) A simple method for estimating evolutionary rates of base substitutions through comparative studies of nucleotide sequences. Journal of Molecular Evolution, 16 (2), 111–120. https://doi.org/10.1007/BF01731581
  18. Kumar, S., Stecher, G., Suleski, M., Sanderford, M., Sharma, S. & Tamura, K. (2024) MEGA12: Molecular evolutionary genetic analysis version 12 for adaptive and green computing. Molecular Biology and Evolution, 41 (12), 263. https://doi.org/10.1093/molbev/msae263
  19. Manee, N., Deharveng, L., D’Haese, C.A., Nilsai, A., Shimano, S. & Jantarit, S. (2025) The Thermal Tolerance of Springtails in a Tropical Cave, with the Description of a New Coecobrya Species (Collembola: Entomobryidae) from Thailand. Insects, 16 (1), 80. https://doi.org/10.3390/insects16010080
  20. Nilsai, A., Zeppelini, D., Bellini, B.C., Lima, E.C.A. & Jantarit, S. (2022) First record of the boneti-group of Coecobrya Yosii, 1956 (Collembola: Entomobryidae) from Thailand, with the description of three new cave species of the genus. Zootaxa, 5214 (3), 365–392. https://doi.org/10.11646/zootaxa.5214.3.3
  21. Soto-Adames, F.N. (2008) Postembryonic development of the dorsal chaetotaxy in Seira dowlingi (Collembola, Entomobryidae); with an analysis of the diagnostic and phylogenetic significance of primary chaetotaxy in Seira. Zootaxa, 1683, 1–31. https://doi.org/10.11646/zootaxa.1683.1.1
  22. Szeptycki, A. (1979) Morpho-systematic studies on Collembola. IV. Chaetotaxy of the Entomobryidae and its phylogenetical significance. Polska Akademia Nauk, Zakład Zoologii Systematycznej i Doświadczalnej, Państwowe Wydawnictwo Naukowe, Warszawa, Kraków, 219 pp.
  23. Tömösvary, Ö. (1882) Adatok hazánk Thysanura-Faunájához. Magyar Tudományos Akadémia Mathematikai és Természettudományi Közlemények, 18, 119–131.
  24. Wang, F., Chen, J.X. & Christiansen, K. (2002) A New Species of the Subgenus Coecobrya (Collembola: Entomobryidae) from China. Journal of Entomological Science, 37 (3), 213–218. https://doi.org/10.18474/0749-8004-37.3.213
  25. Ye, M., Huang, C., Yu, D., Sun, X., Godeiro, N.N., Jiang, J., Li, Z., Luan, Y., Wu, D. & Zhang, F. (2025) The first checklist of the Collembola of China in the 21th century. Zoological Systematics, 50 (1), 1–94.
  26. Yosii, R. (1956) Hohlencollembolen Japans II. Japanese Journal of Applied Entomology and Zoology, 11 (5), 609–627.
  27. Yosii, R. (1964) Some Collembola from Okinawa caves, with notes on Sinella-Coecobrya complex of Japan. Bulletin of the Akiyoshi-dai Science Museum, 3, 25–34.
  28. Yoshii, R. & Suhardjono, Y.R. (1989) Notes on the Collembolan Fauna of Indonesia and its vicinities I. Miscellaneous Notes, with special references to Seirini and Lepidocyrtini. Acta Zoologica Asiae Orientalis, 1, 23–90.
  29. Zhang, F., Bedos, A. & Deharveng, L. (2016) Cave-dwelling Coecobrya from southern China with a survey of clypeal chaetae in Entomobryoidea (Collembola). European Journal of Taxonomy, 226, 1–21. https://doi.org/10.5852/ejt.2016.226
  30. Zhang, F., Deharveng, L. & Chen, J.X. (2009) New species and rediagnosis of Coecobrya (Collembola: Entomobryidae), with a key to the species of the genus. Journal of Natural History, 43, 2597–2615. https://doi.org/10.1080/00222930903243970
  31. Zhang, F., Jantarit, S., Nilsai, A., Stevens, M.I., Ding, Y.H. & Satasook, C. (2018a) Species delimitation in the morphologically conserved Coecobrya (Collembola: Entomobryidae): A case study integrating morphology and molecular traits to advance current taxonomy. Zoologica Scripta, 47, 342–356. https://doi.org/10.1111/zsc.12279
  32. Zhang, F., Man, L.C. & Deharveng, L. (2011a) A review of the boneti-group of the genus Coecobrya (Collembola: Entomobryidae). Zootaxa, 2748, 61–68. https://doi.org/10.11646/zootaxa.2748.1.7
  33. Zhang, F. & Pan, Z.X. (2020) Homology of labial chaetae in Entomobryoidea (Collembola). Zootaxa, 4766 (3), 498–500. https://doi.org/10.11646/zootaxa.4766.3.8
  34. Zhang, F., Yu, D.Y., Luo, Y.Z., Ho, S.Y.W., Wang, B.X. & Zhu, C.D. (2014) Cryptic diversity, diversification and vicariance in two species complexes of Tomocerus (Collembola, Tomoceridae) from China. Zoologica Scripta, 43 (4), 393–404. https://doi.org/10.1111/zsc.12056
  35. Zhang, F., Yu, D.Y., Stevens, M.I. & Ding, Y.H. (2018b) Colouration, chaetotaxy and molecular data provide species-level resolution in a species complex of Dicranocentrus (Collembola: Entomobryidae). Invertebrate Systematics, 32 (6), 1298–1315. https://doi.org/10.1071/IS18019
  36. Zhang, F., Yu, D.Y. & Xu, G.L. (2011b) Transformational homology of the tergal setae during postembryonic development in the Sinella-Coecobrya group (Collembola: Entomobryidae). Contributions to Zoology, 80 (4), 213–223. https://doi.org/10.1163/18759866-08004001

How to Cite

Sun, Y.-F., Lu, J.-C., Zhan, Z.-H. & Zhang, F. (2026) Two new species of Coecobrya Yosii (Collembola: Entomobryidae) from Yunnan, China. Zootaxa, 5837 (2), 240–256. https://doi.org/10.11646/zootaxa.5837.2.2