Published May 21, 2020 | Version v1
Taxonomic treatment Open

Indocloeon (Hindocloeon) longistylus Kluge & Suttinun 2020, comb. n.

  • 1. Department of Entomology, Saint Petersburg State University, Universitetskaya nab., 7 / 9, Saint Petersburg, 199034, Russia Website: http: // www. insecta. bio. spbu. ru. n. kluge @ spbu. ru; https: // orcid. org / 0000 - 0001 - 9741 - 7790
  • 2. Animal Systematics and Ecology Speciality Research Unit (ASESRU), Department of Zoology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand. chana. suttinun @ gmail. com; https: // orcid. org / 0000 - 0002 - 0380 - 1554

Description

Indocloeon (Hindocloeon) longistylus (Demoulin 1969) comb. n.

(Fig. 105)

Cloeon longistylus Demoulin 1969: 231 (♂ imago).

Comments. This species was briefly described based on 3 male imagines. It was placed in the genus Cloeon Leach 1815, which at that time represented an artificial group and comprised various species with single marginal intercalaries on the fore wing and no hind wings. The structure of genitals figured in the original description (Demoulin 1969: fig. 7b) clearly testify that this species belongs to Indocloeon s. l. Judging by this figure, the distal (3rd) segment of the gonostylus is as long as the proximal (1st +2nd) segment (Fig. 105), and this distinguishes Indocloeon longistylus from other known species, whose distal segment is shorter than the proximal segment, both in the imaginal and subimaginal stages (Figs 101–104).

Distribution: Balabac and Palawan Islands of the Philippines (Demoulin 1969).

Notes

Published as part of Kluge, Nikita J. & Suttinun, Chanaporn, 2020, Review of the Oriental genus Indocloeon Müller-Liebenau 1982 (Ephemeroptera: Baetidae) with descriptions of two new species, pp. 451-484 in Zootaxa 4779 (4) on page 479, DOI: 10.11646/zootaxa.4779.4.1, http://zenodo.org/record/3839329

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Additional details

Biodiversity

References

  • Demoulin, G. (1969) Les Ephemeropteres recoltes par la mission danoise du Noona Dan aux iles Philippines et Bismarck. Entomologiske Meddelelser, 37 (3), 225 - 241.
  • Leach, W. E. (1815) Entomology. Brewster's Edinburgh Encyclopedia, 9 (1), 57 - 172.