Capniella khingana Cao & Murányi & Yang & Li 2025, comb. nov.

Capniella khingana (Teslenko, 2019), comb. nov. (Figs. 1–3) Capnia khingana Teslenko, 2019: 465. Material examined. 1 male (HIST), CHINA: Heilongjiang Province, Yichun City, Wuying area, Lesser Khingan Mountains, Fenglin National Nature Reserve, Primeval red pine forest area, 300 m, 48.0383°N, 128.9730°E, 2012. IV.18, leg. Junchao Wang. Distribution. Previously known only from the Russian Far East, this species is recorded in China for the first time. In China, it was found in the Fenglin National Nature Reserve, located on the northern section of the southern slope of Lesser Khingan Mountains in northeast Heilongjiang Province. Remarks. This species was also collected from the Lesser Khingan (Xiao Hinggan Range), the same mountain range as mentioned in Teslenko (2019). Based on the structure of the epiproct that divided longitudinally into ventral and dorsal halves, and the presence of the posteromedial process on male tergum 7, C. khingana was provisionally assigned to the C. atra species group (Zhiltzova 2001; Teslenko, 2019). However, upon examination of its visible characters, it was identified as a member of genus Capniella, instead of a member of genus Capnia for the following reasons. Forewing: R1 vein strongly curved, A1 vein straight, typical of Capniella (Fig. 1a). There are slight differences in curvature of the A 1 in forewing from that described in Teslenko (2019), but such differences of curvature of the A1 veins had been already suggested Capniella (Murányi et al. 2014). Hindwing is generally similar to the types (Fig. 1b). The male subgenital plate is weakly fused with the base of the sternum 9, and the base of the sternum is weakly fused with the tergum as well (Fig. 2a–c), however, those are also widely fused in Capnia sensu stricto (Fig. 2e). The fusion plate is very broad (Fig. 2d), a character typical in Capniella, whereas the plate is medium wide in Capnia sensu stricto (Fig. 2e). The lower portion of the main sclerite is sclerotized, basally narrowing and long, apex weakly sclerotized and hook curved upward then downward with a wide and blunt apex (Fig. 3a–b) which is not clearly described and shown in original illustrations in Teslenko (2019); in fact, that character is most closely related to Capniella gibba Hwang, Li & Murányi, 2021.

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Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2025-05-16
DOI
https://doi.org/10.5281/zenodo.15481021
Primary Topic
Diatoms and Algae Research
Type
article
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article

Capniella khingana Cao & Murányi & Yang & Li 2025, comb. nov.

Zenodo (CERN European Organization for Nuclear Research)
Diatoms and Algae Research
article

Capniella khingana Cao & Murányi & Yang & Li 2025, comb. nov.

article en

Abstract

Capniella khingana (Teslenko, 2019), comb. nov. (Figs. 1–3) Capnia khingana Teslenko, 2019: 465. Material examined. 1 male (HIST), CHINA: Heilongjiang Province, Yichun City, Wuying area, Lesser Khingan Mountains, Fenglin National Nature Reserve, Primeval red pine forest area, 300 m, 48.0383°N, 128.9730°E, 2012. IV.18, leg. Junchao Wang. Distribution. Previously known only from the Russian Far East, this species is recorded in China for the first time. In China, it was found in the Fenglin National Nature Reserve, located on the northern section of the southern slope of Lesser Khingan Mountains in northeast Heilongjiang Province. Remarks. This species was also collected from the Lesser Khingan (Xiao Hinggan Range), the same mountain range as mentioned in Teslenko (2019). Based on the structure of the epiproct that divided longitudinally into ventral and dorsal halves, and the presence of the posteromedial process on male tergum 7, C. khingana was provisionally assigned to the C. atra species group (Zhiltzova 2001; Teslenko, 2019). However, upon examination of its visible characters, it was identified as a member of genus Capniella, instead of a member of genus Capnia for the following reasons. Forewing: R1 vein strongly curved, A1 vein straight, typical of Capniella (Fig. 1a). There are slight differences in curvature of the A 1 in forewing from that described in Teslenko (2019), but such differences of curvature of the A1 veins had been already suggested Capniella (Murányi et al. 2014). Hindwing is generally similar to the types (Fig. 1b). The male subgenital plate is weakly fused with the base of the sternum 9, and the base of the sternum is weakly fused with the tergum as well (Fig. 2a–c), however, those are also widely fused in Capnia sensu stricto (Fig. 2e). The fusion plate is very broad (Fig. 2d), a character typical in Capniella, whereas the plate is medium wide in Capnia sensu stricto (Fig. 2e). The lower portion of the main sclerite is sclerotized, basally narrowing and long, apex weakly sclerotized and hook curved upward then downward with a wide and blunt apex (Fig. 3a–b) which is not clearly described and shown in original illustrations in Teslenko (2019); in fact, that character is most closely related to Capniella gibba Hwang, Li & Murányi, 2021.

Zenodo (CERN European Organization for Nuclear Research)
Eszterhazy Karoly Catholic University (HU), Henan Institute of Science and Technology (CN), China Agricultural University (CN)
Life in Land
Openalex Percentile: Top 70%
Diatoms and Algae Research
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