Afronurus species

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 : 113-114

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.5528183

persistent identifier

https://treatment.plazi.org/id/03EA87D9-5576-FFD5-1CA8-FCC3FAE5F6E4

treatment provided by

Felipe

scientific name

Afronurus species
status

 

Key to six common Chinese Afronurus species View in CoL View at ENA (nymph)

1. Anterior margin of head capsule without pale dot ............................................................................ 2

– Anterior margin of head capsule with pale dots ............................................................................... 3

2. Lingua and superlinguae subequal in length (as in Fig. 8B View Fig ); crown of galea-lacinia with 12–14 comb-shaped setae; caudal filaments pale but with brown dots on articulations ( Fig. 7O View Fig ); glossae slightly oblong (as in Fig. 2F View Fig ) ........................................................ A. yixingensis ( Wu & You, 1986) View in CoL

– Lingua obvious shorter than superlinguae ( Fig. 10B View Fig ); crown of galea-lacinia with 16–18 combshaped setae; proximate part of caudal filaments pale but other parts yellowish brown ( Fig. 7F View Fig ); glossae lobe rounded ( Fig. 10E View Fig ) ............................................... A. hunanensis ( Zhang & Cai, 1991) View in CoL

3. Head capsule with two rows of pale dots (8–9) on anterior margin ( Fig. 7G, J View Fig ); caudal filaments with brown stripes on articulations ( Fig. 7I, L, O View Fig ) ................................................................................... 4

– Head capsule with 2–5 pale dots on anterior margin ( Figs 1A View Fig , 7A View Fig ); caudal filaments pale to yellowishbrown, without any stripe ( Figs 1A View Fig , 7C View Fig ) .......................................................................................... 5

4. Abdominal terga with oblique stripes laterally ( Fig. 7H View Fig ); crown of galea-lacinia with 11–13 combshaped setae; posterolateral projections of segments III–VIII moderately developed ( Fig. 7H View Fig ); lingua shorter than superlinguae (as in Fig. 10B View Fig ) ................................. A. obliquistriatus ( You et al., 1981) View in CoL

– Abdominal terga without oblique stripes; crown of galea-lacinia with 14–16 comb-shaped setae; posterolateral projections of segments III–VIII weakly developed (as in Fig. 7E View Fig ); lingua and superlinguae subequal in length (as in Fig. 2C View Fig ) ..................... A. rubromaculatus ( You et al., 1981) View in CoL

5. Gill I sickle-like ( Fig. 3F View Fig ); glossae slightly oblong ( Fig. 2F View Fig ) .................. A. drepanophyllus sp. nov.

– Gill I banana-shaped ( Fig. 9F View Fig ); glossae lobe rounded ( Fig. 8E View Fig ) ........................................................ ...................................................................................................... A. furcatus ( Zhou & Zheng, 2003) View in CoL

Key to six common Chinese Afronurus species (male imago)

1. Penes with plate-like titillators ......................................................................................................... 2

– Penes with spine-like titillators ......................................................................................................... 3

2. Penes connected by foliated structure at ⅔ length from base; titillators about ⅔ of penes in length ( Fig. 13A–B View Fig ) ................................................................................ A. furcatus ( Zhou & Zheng, 2003) View in CoL

– Penes lobes widely divergent; titillators about half of penes in length ( Fig. 13C–D View Fig ) ........................ ................................................................................................... A. hunanensis ( Zhang & Cai, 1991) View in CoL

3. Remarkable projection between divergent penial lobes ................................................................... 4

– Penial lobes divergent but without projection between them ........................................................... 5

4. Spine-like projection between two penial lobes ( Fig. 13I–J View Fig ); abdominal terga with two yellowishbrown longitudinal stripes submedially ( Fig. 12E View Fig ) ....................... A. yixingensis ( Wu & You, 1986) View in CoL

– Cone-shaped projection between two penial lobes ( Fig. 13G–H View Fig ); abdominal terga I–IX with distinguishable reddish stripes laterally ( Fig. 12D View Fig ) ................ A. rubromaculatus ( You et al., 1981) View in CoL

5. Abdominal terga transparent, with brown oblique stripes laterally ( Fig. 12C View Fig ); penial lobes slightly divergent and with a narrow V-shaped cleft between them ( Fig. 13E–F View Fig ) .......................................... .................................................................................................... A. obliquistriatus ( You et al., 1981) View in CoL

– Abdominal terga with broad longitudinal stripe and pair of pale dots medially ( Fig. 12A View Fig ); penial lobes obviously divergent and with a deep U-shaped cleft between them ( Fig. 5D–E View Fig ) ..................... .................................................................................................................. A. drepanophyllus sp. nov.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Ephemeroptera

Family

Heptageniidae

SubFamily

Ecdyonurinae

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