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A unique new species of halophilous water strider of the genus Aquarius Schellenberg (Hemiptera: Gerridae: Gerrinae) endemic to Omura Bay, Nagasaki, Japan

Published online by Cambridge University Press:  01 May 2018

Tomohide Yasunaga Open the ORCID record for Tomohide Yasunaga [Opens in a new window] ,
Haruka Asanabe ,
Akiko Hirano ,
Hitomi Momosaka ,
Tetsuya Nagashima  and
Masami Hayashi
Tomohide Yasunaga*
Affiliation:
Research Associate, Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79th Street, New York, New York, 10024, United States of America
Haruka Asanabe
Affiliation:
Super Science High School, Biology Section, Nagasaki, West High School, Takenokubo 12-9, Nagasaki, 852-8014, Japan
Akiko Hirano
Affiliation:
Super Science High School, Biology Section, Nagasaki, West High School, Takenokubo 12-9, Nagasaki, 852-8014, Japan
Hitomi Momosaka
Affiliation:
Super Science High School, Biology Section, Nagasaki, West High School, Takenokubo 12-9, Nagasaki, 852-8014, Japan
Tetsuya Nagashima
Affiliation:
Super Science High School, Biology Section, Nagasaki, West High School, Takenokubo 12-9, Nagasaki, 852-8014, Japan
Masami Hayashi
Affiliation:
Professor Emeritus, Saitama University, Shimo-Okubo 255, Saitama, 338-8570, Japan
*
1Corresponding author (e-mail: [email protected])
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Abstract

A new species of halophilous water strider, Aquarius haliplous Yasunaga, Asanabe, and Nagashima new species (Hemiptera: Gerridae: Gerrinae), is diagnosed and described. This species is endemic to Omura Bay, Nagasaki, southwestern Japan, and has a unique adaptation to this mixohaline habitat. Based on unique morphology and ecology both in the adult and immature forms, this new Aquarius Schellenberg species can be separated unequivocally from a similar species inhabiting freshwater, A. paludum (Fabricius). A key is provided to facilitate identification of the Japanese species and subspecies of Aquarius.

Type
Systematics & Morphology
Information
The Canadian Entomologist , Volume 150 , Issue 4 , August 2018 , pp. 413 - 439
Copyright
© Entomological Society of Canada 2018 

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