Copelatus japonicus Sharp 1884
- 1. State Key Laboratory of Biocontrol and Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China. zhuoyin _ jiang @ 126. com; https: // orcid. org / 0000 - 0001 - 6825 - 4283
- 2. Guangzhou Customs Technology Center, Nansha District, Guangzhou, China.
- 3. Brilliant Landscaping and Gardening Company Limited, Macau.
- 4. State Key Laboratory of Biocontrol and Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China. fenglongjia @ aliyun. com; lssjfl @ mail. sysu. edu. cn; http: // orcid. org / 0000 - 0003 - 2391 - 5038
- 5. Department of Entomology, National Museum, Cirkusová 1740, CZ- 193 00 Praha 9 - Horní Počernice, Czech Republic. jiri. hajek @ nm. cz; https: // orcid. org / 0000 - 0001 - 5779 - 1542
Description
Copelatus japonicus Sharp, 1884
(Figs 8, 39–40)
Copelatus japonicus Sharp, 1884: 445.
Type locality. “Kiishiu” [Japan, Honshu Island, Wakayama Prefecture].
Type material. Syntype ♂ (BMNH), labelled: “ Copelatus / japonicus. / Type D.S. / Japan. Lewis [hw] // Type [round label with red frame, p] // Sharp Coll / 1905-313.”; Syntype ♀ (BMNH), labelled: “Kii, 1879 / Wada [hw] // Japan. / G. Lewis. / 1910–320. [p] // Copelatus / japonicus. [hw] // Copelatus / japonicus, / ♀ Sharp. / teste. D.Sharp. [hw]”.
Additional material examined. CHINA: Shanghai: 1 ♂, 1 ♀, Jiading District, Jiading new town, 10.ix.2021, D. Zhou leg. (SYSU).
Diagnosis. Larger (TL: 5.3–5.7 mm), oblong-oval species. Head brown, with reddish clypeus and two oval spots on vertex; pronotum brown, laterally broadly orange, anterior and posterior margin orange translucent; elytra pale brown on disc, base and lateral sides yellowish brown. Pronotum with only several short longitudinal strioles laterally. Each elytron with six complete discal striae and one submarginal stria: all striae beginning at base; stria 1 longest, ending close to apex, odd striae somewhat longer than even ones; stria 6 shortest, ending at apical fourth; submarginal stria long, beginning before elytral mid-length and ending at apical fourth (Fig. 8). Median lobe of aedeagus in lateral view simple, sickle shaped, strongly curved; broad in basal half and slender in apical half; apex pointed (Fig. 39). Parameres slender, ‘C’-shaped; apex short and broad; apical lobes moderately long, club-shaped (Fig. 40). Female similar to male; strioles on pronotum more numerous, microreticulation of pronotum and elytra slightly more impressed.
Comments on the classification. This Japanese species was recorded from several Chinese provinces by various authors (see Nilsson 1995 for summary), also under the names C. chinensis and C. collocallosus which were synonymized with C. japonicus by Guignot (1952) and Satô (1985) respectively. However, the study of the type material of C. chinensis proved that it is a valid species separate from C. japonicus, while the extensive material collected recently in various localities in southern China belongs to numerous taxa new to science. At present, we are aware of only a single reliable record of C. japonicus from China – Shanghai, presented above.
Distribution. A species occurring in Japan, South Korea and eastern China (Shanghai) (Fig. 81).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- BMNH , SYSU
- Event date
- 2021-09-10
- Family
- Dytiscidae
- Genus
- Copelatus
- Kingdom
- Animalia
- Order
- Coleoptera
- Phylum
- Arthropoda
- Scientific name authorship
- Sharp
- Species
- japonicus
- Taxon rank
- species
- Type status
- holotype , syntype
- Verbatim event date
- 2021-09-10
- Taxonomic concept label
- Copelatus japonicus Sharp, 1884 sec. Jiang, Zhao, Yang, Jia & Hájek, 2022
References
- Sharp, D. (1884) The water-beetles of Japan. The Transactions of the Entomological Society of London, 1884, 439 - 464.
- Nilsson, A. N. (1995) Noteridae and Dytiscidae: Annotated check list of the Noteridae and Dytiscidae of China (Coleoptera). In: Jach, M. A. & Ji, L. (Eds.), Water beetles of China. Vol. I. Zoologisch-Botanische Gesellschaft in Osterreich and Wiener Coleopterologenverein, Wien, pp. 35 - 96.
- Guignot, F. (1952) Description de dytiscides inedits de la collection Regimbart. Revue Francaise d'Entomologie, 19, 17 - 31.
- Sato, M. (1985) The genus Copelatus of Japan (Coleoptera: Dytiscidae). Transactions of the Shikoku Entomological Society, 17, 57 - 67.