Afronurus pallescens ( Navás, 1936 )

Ying, Xiaoli & Zhou, Changfa, 2021, The exact status and synonyms of three Chinese Afronurus Lestage, 1924 established by Navás in 1936 (Ephemeroptera: Heptageniidae), Zootaxa 5082 (1), pp. 95-100 : 95-96

Afronurus pallescens ( Navás, 1936)

Ecdyonurus pallescens Navás, 1936: 121 , fig. 81 (male, female). Types: male, female, Kuling , Jiangxi province, China .

Ecdyonurus pallescens — Gui 1985: 87.

Cinygmina obliquistriata You et al., 1981: 26 , pl. 1, figs 1–13 (male, female). Types: male, female, Yixing, Jiangsu Prov. New Synonym .

Cinygmina obliquistriata —Wu et al. 1986: 65, figs 12–22 (nymph).

Cinygmina obliquistriata — Gui 1985: 86; Zhang & Cai 1991: 237; You & Gui 1995: 51, fig. 50 (male); Su et al. 1995: 41; Gui et al. 1999: 330, figs 11-10 (male); Zhou & Zheng 2003: 756, figs 9, 12, 16 (male and nymph).

Afronurus obliquistriatus — Braasch & Jacobus 2011: 65; Zhang et al. 2021: 109 .

Remarks: Both imagoes ( Figs. 1B, 1C ) and nymphs of C. obliquistriata have remarkable oblique abdominal stripes that clearly match the original descriptions and drawings ( Fig. 1A ) of E. pallescens by Navás (1936). Therefore, we propose the following synonymy: Ecdyonurus pallescens Navás, 1936 (= Cinygmina obliquistriata You et al., 1981 ). In addition, since the types of this species are lost (Alba–Tercedor & Peters 1985), we redesign a neotype for it.

Neotype designation for Afronurus pallescens ( Navás, 1936) : male imago, China, Jiangxi Province, Wu- Yuan County, Qing-Hua Town (29°41′55.49″ N, 117°78′11.82″E), 2-VIII-2015, collected by Juanyan Luo, Junzhi Sun, Yike Han. The neotype designed here was collected from the same province and in a very nearby locality of the original types, and has typical characters mentioned in the original description.

Other material examined: 19 male imagoes, 2 female imagoes, same data as the neotype; male imago (holotype of Cinygmina obliquistriata You et al., 1981 ), Jiangsu Province, Yi-Xing County, Ming-Ling Town (31°10′50.20″ N, 119°40′17.52″ E), 21–31-VII-1980, collected by Tian Wu ; 12 male imagoes (paratypes), same data as the holotype ; 15 male imagoes, 18 female imagoes, 20 nymphs, Zhejiang Province, Lin-An city, Yu-Qian Town, Tianmu Mountain (30°32′11.91″ N, 119°44′73.71″ E), 3-IV-2019, collected by Wei Zhang, Zhenxing Ma; 2 male imagoes, 2 female subimagoes, Hubei Province, Yi-Chang City , Yang-Lin-Qiao Town (30°74′79.01″ N, 110°76′60.72″ E), 13-VIII-2019, collected by Ran Li, Wei Zhang ; 20 male imagoes, 10 male subimagoes, 14 female imagoes, 10 female subimagoes, 12 nymphs, Hunan Province, Yi-Yang City, An-Hua County, Liu-Bu-Xi Nature Reserve (28°31′16.95″ N, 110°82′65.41″ E), 17-VIII-2019, collected by Ran Li, Wei Zhang.

Distribution: almost all Chinese mainland except the Qinghai-Tibet Plateau.

Figures

FIGURE 1. Abdomen of Afronurus pallescens (Navás, 1936) male imago. A: Original drawing from Navás (1936). B: Lateral view. C: Dorsal view. Scale bars = 1.0 mm.