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The first description of the nymph of Potamanthodes macrophthalmus You, 1984 and reinstatements of the genera Potamanthodes Ulmer, 1920 and Stygifloris Bae, McCafferty, and Edmunds, 1990 (Ephemeroptera: Potamanthidae)

The first description of the nymph of Potamanthodes macrophthalmus You, 1984 and reinstatements... Abstract The Chinese endemic mayfly Potamanthodes macrophthalmus You, 1984 is the single species relating the taxon Potamanthodes Ulmer, 1920 to other generic taxa of the family Potamanthidae because it has larger compound eyes and longer penes than congeners. However, its nymphs remained unknown and its detailed imaginal morphology is incomplete until now. Upon newly collected materials and type specimens, the main diagnostic characters of its nymph, which is described for the first time here, are revealed. This includes relatively large eyes, tiny mandibular tusks and remarkable body colour pattern. In imaginal stage, besides longer penes and larger eyes, the blunt apex of penis and shape of bent R1 vein of hindwing are additional recognisable characters. Taxonomically, Potamanthodes presents unique characters, such as MP2 originating at base of CuA in forewing, partially pigmented forewings, acute costal projection on hindwings of imagoes and bristle-like setae row on nymphal forefemora. Therefore, Potamanthodes and Stygifloris Bae, McCafferty, and Edmunds, 1990 stat. rev. are reinstated as genera in this study. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aquatic Insects Taylor & Francis

The first description of the nymph of Potamanthodes macrophthalmus You, 1984 and reinstatements of the genera Potamanthodes Ulmer, 1920 and Stygifloris Bae, McCafferty, and Edmunds, 1990 (Ephemeroptera: Potamanthidae)

Li, Wenjuan; Zhou, Changfa
Aquatic Insects , Volume 44 (1): 12 – Jan 2, 2023
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12 pages

The first description of the nymph of Potamanthodes macrophthalmus You, 1984 and reinstatements of the genera Potamanthodes Ulmer, 1920 and Stygifloris Bae, McCafferty, and Edmunds, 1990 (Ephemeroptera: Potamanthidae)

Abstract

Abstract The Chinese endemic mayfly Potamanthodes macrophthalmus You, 1984 is the single species relating the taxon Potamanthodes Ulmer, 1920 to other generic taxa of the family Potamanthidae because it has larger compound eyes and longer penes than congeners. However, its nymphs remained unknown and its detailed imaginal morphology is incomplete until now. Upon newly collected materials and type specimens, the main diagnostic characters of its nymph, which is described for the first time...
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Publisher
Taylor & Francis
Copyright
© 2022 Informa UK Limited, trading as Taylor & Francis Group
ISSN
1744-4152
eISSN
0165-0424
DOI
10.1080/01650424.2022.2074043
Publisher site
See Article on Publisher Site

Abstract

Abstract The Chinese endemic mayfly Potamanthodes macrophthalmus You, 1984 is the single species relating the taxon Potamanthodes Ulmer, 1920 to other generic taxa of the family Potamanthidae because it has larger compound eyes and longer penes than congeners. However, its nymphs remained unknown and its detailed imaginal morphology is incomplete until now. Upon newly collected materials and type specimens, the main diagnostic characters of its nymph, which is described for the first time here, are revealed. This includes relatively large eyes, tiny mandibular tusks and remarkable body colour pattern. In imaginal stage, besides longer penes and larger eyes, the blunt apex of penis and shape of bent R1 vein of hindwing are additional recognisable characters. Taxonomically, Potamanthodes presents unique characters, such as MP2 originating at base of CuA in forewing, partially pigmented forewings, acute costal projection on hindwings of imagoes and bristle-like setae row on nymphal forefemora. Therefore, Potamanthodes and Stygifloris Bae, McCafferty, and Edmunds, 1990 stat. rev. are reinstated as genera in this study.

Journal

Aquatic Insects – Taylor & Francis

Published: Jan 2, 2023

Keywords: Mayfly; classification; morphology; biology; China

References

  • Phylogenetic Systematics of the Potamanthidae (Ephemeroptera)
  • Stygifloris, a New Genus of Mayflies (Ephemeroptera: Potamanthidae) from Southeast Asia
  • An Announcement of New Genera of the Ephemeridae
  • IX. New Species of Ephemeridae from the Tenasserim Valley
  • A Catalog of the Ephemeroptera of China
  • The Genus Rhoenanthus Eaton, 1881 in China with the Redescription of R. hunanensis You & Gui, 1995 (Ephemeroptera: Potamanthidae)
  • Ephemeroptera of Manchoukuo, Inner Mongolia, and Chosen
  • Behningiidae and Potamanthidae (Insecta, Ephemeroptera) in Thailand
  • The Imaginal Characters of Neoephemera projecta Showing Its Plesiomorphic Position and a New Genus Status in the Family (Ephemeroptera: Neoephemeridae)
  • Anthopotamus, a New Genus for North American Species Previously Known as Potamanthus (Ephemeroptera: Potamanthidae)
  • Übersicht Über Die Gattungen Der Ephemeropteren, Nebst Bemerkungen Über Einzelne Arten
  • A Revision of Genus Potamanthodes with A Description of Two New Species (Ephemeroptera, Potamanthidae)
  • Studies on the Chinese Genus Potamanthodes (Ephemeroptera: Potamanthidae)
  • A Species List of Chinese Mayflies (Insecta: Ephemeroptera)
  • A New Species of the Genus Neoephemera McDunnough from China (Ephemeroptera: Neoephemeridae)