Biodiversity Data Journal :
Single Taxon Treatment
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Corresponding author: Tadashi Ishikawa (chuishikawa@gmail.com)
Academic editor: Laurence Livermore
Received: 13 Feb 2018 | Accepted: 18 Apr 2018 | Published: 24 Apr 2018
© 2018 Haruka Tachi, Tadashi Ishikawa
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Tachi H, Ishikawa T (2018) New record of the pentatomine stink bug species Caystrus orientalis Zhang and Lin (Hemiptera: Pentatomidae) from Japan. Biodiversity Data Journal 6: e24439. https://doi.org/10.3897/BDJ.6.e24439
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To date, the stink bug species Caystrus orientalis Zhang and Lin, 1985, was known to occur only in China.
A species known as “Caystrus sp.” and “Neodinus sp.” in Japan has been identified as C. orientalis, which has been recorded from Japan for the first time.
Caystrini, Caystrus orientalis, Heteroptera, Japan, Kyushu, Pentatomidae, Pentatomini, Ryukyu Islands
The stink bug species Caystrus orientalis Zhang and Lin, 1985, belonging to the pentatomine tribe Caystrini, was described based on one female in Fujian Province, China (
In Japan, two species of the genus Caystrus Stål, C. depressus (Ellenrieder, 1862) and C. obscurus (Distant, 1901), have been recorded by
The present paper reports Caystrus orientalis as the third representative of Caystrus in Japan, providing diagnostic morphological characters with photographic images to aid in accurate identification; the habit and habitat preference are also briefly discussed.
Dried specimens were used. Morphological observations, including those of genital structures, were made under Olympus SZ60 and SZX16 binocular microscopes. Digital images of the specimens were captured using a Nikon D200 digital camera body and Nikon AF Micro-Nikkor 60 mm f/2.8D lens and using a KEYENCE digital microscope system (VHX-1000 digital microscope, VHX-S50 observation system, VHX-1100 multi-scan camera and VH-Z20R zoom lens). The terminology used herein generally follows that of
Caystrus orientalis:
Neodius sp.:
Caystrus sp.:
Caystrus orientalis can be distinguished by a combination of the following characters: body 11.9–14.1 mm long (average 13.5 mm); body generally dark brown to blackish (Fig.
Genitalia of Caystrus orientalis from Japan.
Japan: Kyushu (Nagasaki Prefecture, Kumamoto Prefecture), the Ryukyu Islands (Okinawa Island, Ishigaki Island, Iriomote Island, Yonaguni Island); China (Fujian Province, Jiangxi Province, Yunnan Province).
As mentioned above, two species of the genus Caystrus, C. depressus (Ellenrieder, 1862) and C. obscurus (Distant, 1901), were previously reported in Japan (
According to
We are extremely grateful to the following persons for kindly offering material and/or providing references: Tomohide Yasunaga (American Museum of Natural History, USA), Tatsuya Nozaki (Wesco Co., Ltd., Japan), Kiyoshi Tanaka (Nagasaki North High School, Japan) and Reo Ito (Oita City, Japan). We also indebted to Laurence Livermore (Natural History Museum, UK) and Tomohide Yasunaga (American Museum of Natural History, USA) for their critical reading of the manuscript and for giving valuable comments. We would also like to thank Editage (www.editage.jp) for English language editing.