The First Described Nymphs and Detailed Imagoes of the Species <i>Thalerosphyrus cingulatus</i> Navás Revealing a New Mayfly Genus from Eastern China (Ephemeroptera: Heptageniidae, Ecdyonurinae)

The nymph and detailed imaginal morphology of the Chinese mayfly <i>Thalerosphyrus cingulatus</i> have not been reported since it was named by Navás in 1933. Here based on newly collected nymphal and associated imaginal materials of this species from eastern China, we find both nymphs an...

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Main Authors:	Zhiming Lei, Dewen Gong, Wei Zhang, Changfa Zhou
Format:	article
Language:	EN
Published:	MDPI AG 2021
Subjects:	heptageniid mayfly <i>Regulaneuria</i> gen. nov. morphology classification insect Science Q
Online Access:	https://doaj.org/article/80a7a5e2ea7148d48e6fb55cefdad18d
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spelling	oai:doaj.org-article:80a7a5e2ea7148d48e6fb55cefdad18d2021-11-25T17:59:51ZThe First Described Nymphs and Detailed Imagoes of the Species <i>Thalerosphyrus cingulatus</i> Navás Revealing a New Mayfly Genus from Eastern China (Ephemeroptera: Heptageniidae, Ecdyonurinae)10.3390/insects121110202075-4450https://doaj.org/article/80a7a5e2ea7148d48e6fb55cefdad18d2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4450/12/11/1020https://doaj.org/toc/2075-4450The nymph and detailed imaginal morphology of the Chinese mayfly <i>Thalerosphyrus cingulatus</i> have not been reported since it was named by Navás in 1933. Here based on newly collected nymphal and associated imaginal materials of this species from eastern China, we find both nymphs and adults have several extraordinary characters. In adults, forewings have less crossveins in costal and subcostal sections, others crossveins arranged into five regular rows; tibiae and tarsi of midlegs and hindlegs subequal in length; male compound eyes widely separated and penes simple and fused. The nymphs have greatly extended lateral pronotum, round supracoxal spurs and extended dorsal lamellae of gills, especially those of the gills VII; maxillae have two independent distal dentisetae. These combined characters represent a new generic taxon. Therefore, <i>Regulaneuria</i> Zhou, gen. nov. is established here to include the species <i>Regulaneuria cingulata</i> (Navás, 1933) comb. nov. The forewing venation of the species <i>R</i>. <i>cingulata</i> is unique in the family Heptageniidae but similar to some counterparts of Leptophlebiidae and Baetidae.Zhiming LeiDewen GongWei ZhangChangfa ZhouMDPI AGarticleheptageniid mayfly<i>Regulaneuria</i> gen. nov.morphologyclassificationinsectScienceQENInsects, Vol 12, Iss 1020, p 1020 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	heptageniid mayfly <i>Regulaneuria</i> gen. nov. morphology classification insect Science Q
spellingShingle	heptageniid mayfly <i>Regulaneuria</i> gen. nov. morphology classification insect Science Q Zhiming Lei Dewen Gong Wei Zhang Changfa Zhou The First Described Nymphs and Detailed Imagoes of the Species <i>Thalerosphyrus cingulatus</i> Navás Revealing a New Mayfly Genus from Eastern China (Ephemeroptera: Heptageniidae, Ecdyonurinae)
description	The nymph and detailed imaginal morphology of the Chinese mayfly <i>Thalerosphyrus cingulatus</i> have not been reported since it was named by Navás in 1933. Here based on newly collected nymphal and associated imaginal materials of this species from eastern China, we find both nymphs and adults have several extraordinary characters. In adults, forewings have less crossveins in costal and subcostal sections, others crossveins arranged into five regular rows; tibiae and tarsi of midlegs and hindlegs subequal in length; male compound eyes widely separated and penes simple and fused. The nymphs have greatly extended lateral pronotum, round supracoxal spurs and extended dorsal lamellae of gills, especially those of the gills VII; maxillae have two independent distal dentisetae. These combined characters represent a new generic taxon. Therefore, <i>Regulaneuria</i> Zhou, gen. nov. is established here to include the species <i>Regulaneuria cingulata</i> (Navás, 1933) comb. nov. The forewing venation of the species <i>R</i>. <i>cingulata</i> is unique in the family Heptageniidae but similar to some counterparts of Leptophlebiidae and Baetidae.
format	article
author	Zhiming Lei Dewen Gong Wei Zhang Changfa Zhou
author_facet	Zhiming Lei Dewen Gong Wei Zhang Changfa Zhou
author_sort	Zhiming Lei
title	The First Described Nymphs and Detailed Imagoes of the Species <i>Thalerosphyrus cingulatus</i> Navás Revealing a New Mayfly Genus from Eastern China (Ephemeroptera: Heptageniidae, Ecdyonurinae)
title_short	The First Described Nymphs and Detailed Imagoes of the Species <i>Thalerosphyrus cingulatus</i> Navás Revealing a New Mayfly Genus from Eastern China (Ephemeroptera: Heptageniidae, Ecdyonurinae)
title_full	The First Described Nymphs and Detailed Imagoes of the Species <i>Thalerosphyrus cingulatus</i> Navás Revealing a New Mayfly Genus from Eastern China (Ephemeroptera: Heptageniidae, Ecdyonurinae)
title_fullStr	The First Described Nymphs and Detailed Imagoes of the Species <i>Thalerosphyrus cingulatus</i> Navás Revealing a New Mayfly Genus from Eastern China (Ephemeroptera: Heptageniidae, Ecdyonurinae)
title_full_unstemmed	The First Described Nymphs and Detailed Imagoes of the Species <i>Thalerosphyrus cingulatus</i> Navás Revealing a New Mayfly Genus from Eastern China (Ephemeroptera: Heptageniidae, Ecdyonurinae)
title_sort	first described nymphs and detailed imagoes of the species <i>thalerosphyrus cingulatus</i> navás revealing a new mayfly genus from eastern china (ephemeroptera: heptageniidae, ecdyonurinae)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/80a7a5e2ea7148d48e6fb55cefdad18d
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The First Described Nymphs and Detailed Imagoes of the Species <i>Thalerosphyrus cingulatus</i> Navás Revealing a New Mayfly Genus from Eastern China (Ephemeroptera: Heptageniidae, Ecdyonurinae)

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