Published November 6, 2025 | Version v1

Labiobaetis paraoperosus Kaltenbach & Gattolliat 2018

  • 1. Naturéum, Muséum cantonal des Sciences Naturelles, Département de zoologie, Palais de Rumine, Place Riponne 6, CH- 1005 Lausanne, Switzerland & Department of Ecology and Evolution, University of Lausanne (UNIL), CH- 1015 Lausanne, Switzerland
  • 2. Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, Thailand & Biodiversity Center Kasetsart University (BDCKU), Bangkok, Thailand
  • 3. Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand

Description

Labiobaetis cf. paraoperosus Kaltenbach & Gattolliat, 2018

Material examined.

Thailand • 3 larvae; Ranong Prov., Mueang Distr., Punyaban Waterfall; 10°03'54"N, 98°40'13"E; 52 m; 19.vi.2018; leg. C. Suttinun; on slides; GBIFCH 01223074, GBIFCH 00596156; VMCMU; GBIFCH 00592514; MZL • 9 larvae; Ranong Prov., Mueang Distr., Huai Por Ta Hin Rao; 09°52'08"N, 98°37'32"E; 20 m; 20.vi.2018; leg. C. Suttinun; in alcohol; GBIFCH 00763804; VMCMU; GBIFCH 00763803; MZL.

Diagnosis.

Larva. Following combination of characters differentiate L. paraoperosus from other species of the group operosus: maxillary palp much longer than galea-lacinia, segment II with slight distolateral excavation; labial palp segment II with broad thumb-like, apically rounded distolateral protuberance; labial palp segment III oblong.

Remark.

The larva has no morphological difference to L. paraoperosus from Indonesia (Sumatra), but there is a genetic distance of 12 % (COI, K 2 P).

Distribution.

Thailand (Fig. 32 c), but L. paraoperosus is known from Sumatra (Indonesia).

Notes

Published as part of Kaltenbach, Thomas, Gattolliat, Jean-Luc, Boonsoong, Boonsatien & Suttinun, Chanaporn, 2025, New species of Labiobaetis Novikova & Kluge from Thailand (Ephemeroptera, Baetidae), pp. 213-276 in ZooKeys 1258 on pages 213-276, DOI: 10.3897/zookeys.1258.166681

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Linked records

Additional details

References

  • Kaltenbach T, Gattolliat J-L (2018) The incredible diversity of Labiobaetis Novikova & Kluge in New Guinea revealed by integrative taxonomy (Ephemeroptera, Baetidae). ZooKeys 804: 1-136. https://doi.org/10.3897/zookeys.804.28988