New distributional records for the plant bug genus, Cimidaeorus Hsiao and Ren (Hemiptera: Miridae: Deraeocorinae) from the Korean Peninsula

New distributional records for the plant bug genus, Cimidaeorus Hsiao and Ren (Hemiptera: Miridae: Deraeocorinae) from the Korean Peninsula

Journal of Asia-Pacific Entomology 18 (2015) 249–251 Contents lists available at ScienceDirect Journal of Asia-Pacific Entomology journal homepage: ww...

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Journal of Asia-Pacific Entomology 18 (2015) 249–251

Contents lists available at ScienceDirect

Journal of Asia-Pacific Entomology journal homepage: www.elsevier.com/locate/jape

New distributional records for the plant bug genus, Cimidaeorus Hsiao and Ren (Hemiptera: Miridae: Deraeocorinae) from the Korean Peninsula Ram Keshari Duwal a, Tomohide Yasunaga b,d, Yukinobu Nakatani c, Seunghwan Lee a,⁎ a

Insect Biosystematics Laboratory, Research Institute for Agriculture and Life Science, Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea Ministry of Agriculture & Irrigation, c/o JICA Myanmar Office, #701 Sakura Tower, No. 339, Bogyoke Aung San Road, Kyauktada, Yangon, Myanmar c Natural Resources Inventory Center, National Institute for Agro-Environmental Sciences, Kannondai, 3-1-3, Tsukuba, Ibaraki 305-8604, Japan d Research Associate,Division of Invertebrate Zoology, American Museum of Natural History, New York, NY 10024, USA b

a r t i c l e

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Article history: Received 29 December 2014 Revised 27 January 2015 Accepted 31 January 2015 Available online 7 February 2015 Keywords: Cimidaeorus hasegawai Cimidaeorus nigrorufus New record the Korean Peninsula

a b s t r a c t Two little-known species of deraeocorine plant bugs, Cimidaeorus nigrorufus Hsiao et Ren, 1983 and Cimidaeorus hasegawai Nakatani, Yasunaga et Takai, 2000 are reported from the Korean Peninsula for the first time. The finding also represents the first distributional record for the genus Cimidaeorus from the Peninsula. A key to species, diagnosis of each taxon, images of dry preserved specimens and illustration of the female genitalia are provided to aid their identification. © 2015 Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society. Published by Elsevier B.V. All rights reserved.

Introduction

Genus Cimidaeorus Hsiao et Ren, 1983

Cimidaeorus (Hsiao et Ren, 1983), belonging to the plant bug subfamily Deraeocorinae, is one of a little-known genus, consisting of two described species from the Eastern Asia. Among two species, Cimidaeorus nigrorufus Hsiao et Ren, originally described from China, and Cimidaeorus hasegawai Nakatani, Yasunaga et Takai from Japan, were found to occur in Korea for the first time during our recent survey. This paper represents a part of a continuing attempt by the first author to document mirid fauna of Korea (Duwal et al., 2012, 2013a,b, 2014a,b, c). All measurements are in millimeters. As all available specimens belonging to Cimidaeorus in Korea are female, we provide illustrations of female genital structures only. The principal terminology follows major works treating the taxa of the Deraeocorinae (Nakatani et al., 2000). The specimens examined are deposited in the Insect Museum, Seoul National University (SNU). In the synonymic lists of known taxa, selected references only are cited, as comprehensive catalogs are available (Kerzhner et Josifov, 1999; Schuh, 1995, 2002–2013).

Cimidaeorus Hsiao and Ren, 1983: 72; Schuh, 1995: 599; Kerzhner and Josifov, 1999: 34; Nakatani et al., 2000: 321; Yasunaga et al., 2001: 194. Type species: C. nigrorufus Hsiao and Ren, 1983, original designation. Diagnosis. Recognized by the robust, thick, broad body, more than 7 mm in length, densely distributed pale pubescence on the dorsum and venter, except for the scutellum, the comparatively small eyes, the strongly clavate antennal segment II, the remarkably short antennal segments III and IV, the carinate lateral margin of pronotum, and the cylindrical hind tibiae, somewhat broadened at the apex. Distribution. Eastern Asia (China, Japan, Korea). Remarks. Cimidaeorus is a small genus, with two described species. The type species, C. nigrorufus is known from Fujian, China, whereas C. hasegawai is from Honshu, Shikoku and Kyushu, Japan. Thus, the members of this genus inhabit a warm temperate zone. Nakatani et al. (2000) assumed that species of Cimidaeorus are associated with the margarodid scales (Hemiptera: Sternorrhyncha). Key to species of Cimidaeorus

⁎ Corresponding author. Tel.: +82 2 88 4691; fax: +82 2 873 2319. E-mail addresses: [email protected] (R.K. Duwal), [email protected] (T. Yasunaga), [email protected] (Y. Nakatani), [email protected] (S. Lee).

1. Body comparatively short and broad, posterior margin of pronotum uniformly black, vertex dark with a small red spot near each eye … C. hasegawai

http://dx.doi.org/10.1016/j.aspen.2015.01.008 1226-8615/© 2015 Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society. Published by Elsevier B.V. All rights reserved.

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– Body elongate, posterior margin of pronotum red, and vertex with distinctly red posterior margin interrupted medially … C. nigrirufus Cimidaeorus hasegawai Nakatani, Nakatani et al., 2000 (Figs. 1A, C, 2A–B) Cimidaeorus hasegawai Nakatani et al., 2000: 321; Yasunaga et al., 2001: 194, Aukema et al., 2013: 178. Diagnosis. Recognized by the flat, broad body, comparatively smaller than C. nigrorufus, mostly dark or black dorsum and appendages except for the red lateral and mesal margin on pronotum and hemelytron, and the pale apical margin of clypeus, small red spot on posterior margin of vertex near each eye, the shagreened pronotal colar, and the shining black venter except for the sternum (Fig. 1A). For a more detailed description and illustrations of male genitalia, see Nakatani et al., 2000: 321. Female. Genitalia (Fig. 2A–B). Bursa copulatrix with a paired elongated process on each sclerotized ring facing inward, and posterior wall with a semicircular carina not reaching inner marginal line.

Measurements. (♀) (n = 1). Total body length 7.89; length from apex of clypeus to cuneal fracture 5.89; head length 1.04; width of head across eyes 1.33; width of vertex 0.77, lengths of antennal segments 0.63, 2.22, 0.54, 0.37; mesal length of pronotum 1.66; basal width of pronotum 3.10; maximum width across hemelytron 4.28; and lengths of metafemur, tibia and tarsus 2.18, 2.91, and 0.55. Specimen examined. South Korea: 1♀, Gyeonggi-do, Gapyeong-gun, Cheongypeong-myeon, Samhoe-ri, Mt. Hwaya, 29.v.2014, on Acer sp. (Aceraceae), R.K. Duwal (SNU). Distribution. Japan (Honshu, Shikoku, Kyushu), Korea (Gyeonggi-do). Remarks. The biology and specific host for C. hasegawai is yet to be determined. However, a single available specimen in Korea was collected from a maple tree by sweeping. The species is assumed to prey on Drosicha corpulenta (Kuwana) (Hemiptera, Margarodidae) (Fig. 1B), to which this deraocorine bugs (particularly its immatures) presumably mimic (Nakatani et al., 2000; Yasunaga et al., 2001). Cimidaeorus nigrorufus Hsiao and Ren, 1983 (Figs. 1D, 2C–D)

Fig. 1. Habitus images of Cimidaeorus (A, C–D) and assumed prey of C. hasegawai (B). A, C. C. hasegawai, female adult. B. Drosicha corpulenta (Kuwana) (Hemiptera: Sternorrhyncha). D. Cimidaeorus nigrorufus, female adult.

R.K. Duwal et al. / Journal of Asia-Pacific Entomology 18 (2015) 249–251

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Fig. 2. Female genitalic structures of Cimidaeorus. A–B. C. hasegawai. C–D. C. nigrorufus. A, C. Bursa copulatrix. B, D. Posterior wall. Scale bar: 1.0 mm.

Cimidaeorus nigrorufus Hsiao and Ren, 1983: 73; Schuh, 1995: 599; Kerzhner and Josifov, 1999: 34. Diagnosis. Recognized by the elongate body, comparatively larger than C. hasegawai, mostly castaneous brown dorsum and appendages with reddish, lateral, mesal and posterior margins of pronotum, and lateral and costal margin of hemelytron, pale apical margin of clypeus and margin below the eye, red coloration on posterior margin of vertex interrupted at the middle, castaneous brown venter except for the black thoracic sternites, and the shagreened collar and sternum (Fig. 1D). For a more detailed description and illustrations of male genitalia, see Hsiao and Ren, 1983: 73. Female. Genitalia (Fig. 2C–D). Bursa copulatrix similar to that of the preceding species, but with paired elongate process on each sclerotized ring facing opposite direction and posterior wall with a deep semicircular carina, extending beyond inner marginal line. Measurements. (♀) (n = 1). Total body length 8.12; length from apex of clypeus to cuneal fracture 6.16; head length 1.17; width of head across eyes 1.45; width of vertex 0.74: lengths of antennal segments 0.70, 2.40, 0.43, and 0.38; mesal length of pronotum 1.71; basal width of pronotum 3.10; maximum width across hemelytron 4.04; and lengths of metafemur, tibia and tarsus 2.36, 2.93, and 0.68. Specimen examined. South Korea: 1♀, Gyeonggi-do, Gunpo-si, Sokdal-dong, Mt. Suri, 07.vi.1968, G.R. Choi (SNU). Distribution. China (Fujian), Korea (Gyeonggi-do). Remarks. No information is currently available on its biology. Acknowledgments We are grateful to Dr G.R. Choi (Chungnam National University) for his invaluable collection, the specimen which is deposited at SNU. Thanks are extended to Dr. T.J. Henry (Systematic Entomology Laboratory, c/o US National Museum of Natural History, Washington D.C.) and Dr. K. Yamada (Tokushima Prefectural Museum, Tokushima, Japan) for improving manuscript with valuable comments and suggestions.

Support for research in this paper was made possible by grants from: the National Institute of Biological Resources (NIBR), funded by the Ministry of Environment (MOE) of the Republic of Korea (NIBR No. 201402-001); the Research of Animal and Plant Quarantine Agency (Project Code No. Z-1541745-2013-15-01); and the Korean National Arboretum (KNA1-1-8). References Aukema, B., Rabitsch, W., Reiger, C.H., 2013. Catalogue of the Heteroptera of the Palaearctic Region. VI. Supplement. xxii. The Netherlands Entomological Society, Amsterdam, pp. 1–629. Duwal, R.K., Yasunaga, T., Jung, S., Lee, S.H., 2012. The plant bug genus Psallus (Heteroptera: Miridae) in the Korean Peninsula with descriptions of three new species. Eur. J. Entomol. 109, 603–632. Duwal, R.K., Jung, S., Lee, S.H., 2013a. Resurrection of the genus Parapsallus Wagner (Hemiptera: Heteroptera: Miridae: Phylinae: Phylini). Zootaxa 3647 (4), 597–600. Duwal, R.K., Jung, J., Lee, S.H., 2013b. Taxonomic revision of the genus Campylomma Reuter (Hemiptera: Miridae: Phylinae: Phylini) from Korea. J. Asia Pac. Entomol. 16, 389–394. Duwal, R.K., Jung, S., Lee, S., 2014a. Review of Europiella Reuter (Hemiptera: Hetroptera: Miridae: Phylinae: Phylini) from Korea, with a description of a new genus. Zootaxa 3795 (3), 383–393. Duwal, R.K., Jung, J., Lee, S., 2014b. A taxonomic review of the plant bug tribe Pilophorini (Hemiptera: Miridae: Phylinae) from the Korean Peninsula. J. Asia Pac. Entomolo. 17, 257–271. Duwal, R.K., Jung, J., Lee, S., 2014c. Taxonomic revision of the tribe Hallodapini Van Duzee (Hemiptera: Miridae: Phylinae) from Korea. J. Asia Pac. Entomolo. 17, 601–607. Hsiao, T.-Y., Ren, S.-Z., 1983. New genus and new species of Deraeocorinae from China (Heteroptera: Miridae). Acta Entomol. Sin. 26, 69–77. Kerzhner, I.M., Josifov, M., 1999. Cimicomorpha II, Miridae. In: Aukema, B., Reiger, C.H. (Eds.), Catalogue of the Heteroptera of the Palearctic Region. Vol. 3. The Netherlands Entomological Society, Amsterdam, pp. 1–577 (i–xiv). Nakatani, Y., Yasunaga, T., Takai, M., 2000. New or little known deraeocorine plant bugs from Japan (Heteroptera: Miridae). Tijdschr. Entomol. 142, 317–326. Schuh, R.T., 1995. Plant bugs of the world (Insecta: Heteroptera: Miridae): systematic catalog, distributions, host list, and bibliography. N.Y. Entomol. Soc. (i–xi), 1–1329. Schuh, R.T., 2002–2013. On-line systematic catalogue of plant bugs (Insects: Heteroptera: Miridae). (Available from), http://research.amnh.org/pbi/catalog (Accessed 22 Nov. 2014). Yasunaga, T., Takai, M., Kawasawa, T., 2001. A Field Guide to Japanese Bugs II. Zenkoky Noson Kyoiku Kyokai, Publ. Co. Ltd, Tokyo, Japan (350 pp. (In japanese)).