Published January 30, 2026 | Version v1
Taxonomic treatment Open

Rheocricotopus (Psilocricotopus) kongi Lin & Wang 2020

  • 1. 84 - 3 Abeguchishinden, Aoi-ku, Shizuoka 421 - 2114 Japan.
  • 2. Life Science and Technology College, Jinan University, Guangzhou 510632, China.

Description

Rheocricotopus (P.) kongi Lin & Wang, 2020

Fig. 12A

Rheocricotopus (Psilocricotopus) kongi Lin & Wang in Lin et al., 2020: 286.

Type material

Holotype CHINA – Hainan • ♂; Baisha, Yinggeling NNR; 19°05′ N, 109°30′ E; 3 Dec. 2010; F.Q. Kong leg.; NKU XL-1857.

Paratype CHINA – Hainan • 1 ♂; same data as for holotype; NKU XL-1853.

Distribution

So far, this species is known only from the type locality, Hainan Province in Oriental China.

Remarks

We re-examined the holotype and one paratype. Although in the holotype the hypopygium is crushed during the mounting procedure (see Lin et al. 2020: 288 fig. 5), the paratype can be seen to have two projections, a triangular, bare ventral projection and a rounded, setigerous inner projection, behind the inferior volsella which is short, stout, apically lump-like (Fig. 12A). The feature separates the species from others in this genus.

Further, the authors (Lin et al. 2020: 289) wrote in the original description: “A pale and oval humeral pit presents in R. kongi sp. n., which not fitting the diagnosis of the R. orientalis group (Wang & Saether 2001)”. Indeed, this species possesses a large and oval humeral pit.

The female and the immature stages are unknown.

Notes

Published as part of Niitsuma, Hiromi & Tang, Hongqu, 2026, Taxonomic review of Rheocricotopus Brundin, 1956 (Diptera: Chironomidae: Orthocladiinae) from East Asia, with descriptions of twelve new species, pp. 1-114 in European Journal of Taxonomy 1037 on page 45, DOI: 10.5852/ejt.2026.1037.3157, http://zenodo.org/record/18507203

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Linked records

Additional details

Biodiversity

Collection code
NKU
Material sample ID
NKU XL-1853 , NKU XL-1857
Event date
2010-12-03
Verbatim event date
2010-12-03
Scientific name authorship
Lin & Wang
Kingdom
Animalia
Phylum
Arthropoda
Order
Diptera
Family
Chironomidae
Genus
Rheocricotopus
Species
kongi
Taxon rank
species
Type status
holotype , paratype
Taxonomic concept label
Rheocricotopus (Psilocricotopus) kongi Lin, 2020 sec. Niitsuma & Tang, 2026

References

  • Lin X., Yu H., Wang Q., Bu W. & Wang X. 2020. DNA barcodes and morphology confirm a new species of Rheocricotopus (Psilocricotopus) orientalis group (Diptera: Chironomidae). Zootaxa 4768 (2): 282-290. https://doi.org/10.11646/zootaxa.4768.2.9
  • Wang X. & Saether O. A. 2001. Two new species of the orientalis group of Rheocricotopus (Psilocricotopus) from China (Diptera: Chironomidae). Hydrobiologia 444: 237-240. https://doi.org/10.1023/A:1017548204492