Afronurus yixingensis ( Wu & You, 1986 )

Zhang, Wei, Lei, Zhi-Ming, Li, Wen-Juan & Zhou, Chang-Fa, 2021, A contribution to the genus Afronurus Lestage, 1924 in China (Ephemeroptera: Heptageniidae, Ecdyonurinae), European Journal of Taxonomy 767 (1), pp. 94-116 : 111-113

publication ID

https://doi.org/ 10.5852/ejt.2021.767.1491

publication LSID

lsid:zoobank.org:pub:B606054C-025E-43AC-9507-14E755343A7A

DOI

https://doi.org/10.5281/zenodo.5528181

persistent identifier

https://treatment.plazi.org/id/03EA87D9-5574-FFD2-1E37-F9A2FEB3F6DC

treatment provided by

Felipe

scientific name

Afronurus yixingensis ( Wu & You, 1986 )
status

 

Afronurus yixingensis ( Wu & You, 1986) View in CoL

Figs 6F View Fig , 7M–O View Fig , 12E View Fig , 13I–J View Fig

Cinygmina yixingensis Wu & You, 1986: 280 , figs 1–13 (male, female). Types: male, female, from Jiangsu, China.

Cinygmina yixingensis – Gui 1985: 86. — Wu et al. 1986: 66, figs 23–33 (nymph). — Zhang & Cai 1991: 237. — She et al. 1995: 79. — You & Gui 1995: 53, fig. 52 (male). — Zhou & Zheng 2003: 758, figs 10, 14, 18 (adults and nymph).

Afronurus yixingensis View in CoL – Braasch & Jacobus 2011: 65.

Material examined

Holotype CHINA • ♂; Jiangsu Province, Yi-Xing city, Ming-Ling village ; 31°10′5.02″ N, 119°40′17.52″ E; alt. 67 m; 15 Jul. 1980; T. Wu leg.; NNU. GoogleMaps

Paratypes CHINA • 10 ♂♂, 2 ♂♂ subimagoes, 6 ♀♀; same collection data as for holotype; NNU GoogleMaps .

Additional material

CHINA • 12 ♂♂ (some reared from mature nymphs), 15 ♀♀ subimagoes, 40 nymphs; Hainan Province, Chang-Jiang County, Ba-Wang-Ling National Forest Park ; 19°07′16.28″ N, 109°05′0.56″ E; alt. 304 m; 12–14 Nov. 2014; Q. Si, J.Z. Sun and J.Y. Luo leg.; NNU GoogleMaps .

Description

Nymph

See Zhou & Zheng (2003: 758, fig. 10, first description).

Male imago

See Wu & You (1986: 280, figs 1–13, original description).

Egg ( Fig. 6F View Fig )

Ovoid, small KCTs concentrated at each pole, large KCTs and oval micropyles located equatorially.

Remarks

Among the six valid Chinese Afronurus species , A. yixingensis and A. hunanensis are separated into one group because of the similar color patterns of the head capsule in nymphs. However, as stated above for A. hunanensis , the nymphs can be separated by shape of hypopharynx, glossae, gills VII, number of comb-shaped setae on maxillae and color patterns of caudal filaments. In the male imago, they can easily be differentiated by shape of penes, titillators and projection between penial lobes.

Distribution

China (Hebei, Hubei, Hunan, Anhui, Jiangxi, Guizhou, Jiangsu, Zhejiang, Fujian, Hainan).

Ecology

Among the six Chinese Afronurus species studied in this paper, A. obliquistriatus , A. rubromaculatus and A. yixingensis are more common than the others and they are frequently found at the collecting sites. The last instar nymphs of A. obliquistriatus are recorded molting at about 10:00–12:30 AM or 17:00–19:30 PM while the last instar nymphs of A. rubromaculatus and A. yixingensis molted at about 16:00–19:00 PM local time, and these three species are observed molting underwater. The subimagoes persisted for 1–2 days and molted at 12:00–15:00 PM, the whole process lasting about 2–4 minutes. Moreover, in another observed species, A. drepanophyllus sp. nov., the last instar nymph molted at about 17:00–18:00 PM and the male subimago molted at 15:00–16:00 PM, the process lasting about 90 seconds.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Ephemeroptera

Family

Heptageniidae

Genus

Afronurus

Loc

Afronurus yixingensis ( Wu & You, 1986 )

Zhang, Wei, Lei, Zhi-Ming, Li, Wen-Juan & Zhou, Chang-Fa 2021
2021
Loc

Afronurus yixingensis

Braasch D. & Jacobus L. M. 2011: 65
2011
Loc

Cinygmina yixingensis

Wu T. & You D. S. 1986: 280
1986
Loc

Cinygmina yixingensis

Zhou C. F. & Zheng L. Y. 2003: 758
She S. S. & Gui H. & You D. S. 1995: 79
You D. S. & Gui H. 1995: 53
Zhang J. & Cai W. D. 1991: 237
Gui H. 1985: 86
1985
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