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ISSN : 1225-0171(Print)
ISSN : 2287-545X(Online)
Korean Journal of Applied Entomology Vol.58 No.2 pp.129-131
DOI : https://doi.org/10.5656/KSAE.2019.05.0.023

Bolitobius princeps (Sharp) (Coleoptera: Staphylinidae: Tachyporinae) New to Korea

Woo-Jin Jeong, Kee-Jeong Ahn*
Department of Biology, Chungnam National University, Daejeon 34134, Korea
Corresponding author:kjahn@cnu.ac.kr
April 1, 2019 May 9, 2019 May 15, 2019

Abstract


Bolitobius princeps (Sharp) is identified for the first time in the Korean Peninsula. Illustrations of habitus and diagnostic characters are provided.



한반도 미기록 갈색어깨무늬뾰족반날개 (딱정벌레목: 반날개과: 뾰족반날개아과)의 보고

정 우진, 안 기정*
충남대학교 생물과학과

초록


갈색어깨무늬뾰족반날개[Bolitobius princeps (Sharp)]를 한반도에서 처음으로 보고한다. 외형사진과 식별형질의 그림을 제시한다.



    The tachyporine genus Bolitobius Leach contains 20 species in the Palaearctic region including two species in Russia (Far East), three species in China (North-East), and four species in Japan. In Korea, Bolitobius parasetiger Schülke and Bolitobius setiger (Sharp) have been recorded (Ahn et al., 2017). They are found from fungi.

    Members of Bolitobius are characterized by the combination of the following features: head small; labial palpus with 3 palpomeres, apical palpomere very large; elytra longer than pronotum with five discal rows. As a result of a taxonomic study of Korean Bolitobius, we discovered Bolitobius princeps (Sharp) for the first time in Korea. Photographs of adult habitus and diagnostic characters with line drawing are provided.

    Materials and Methods

    The specimens used in this study are deposited in the Chungnam National University Insect Collection (CNUIC), Daejeon, Korea.

    Taxonomic accounts

    Genus Bolitobius Leach, 1819

    Bolitobius princeps (Sharp, 1874) 갈색어깨무늬뾰족반날개 (신칭) (Figs. 1~7)

    Megacronus princepsSharp, 1874: 19; 1888: 461.

    Bryocharis princeps Bernhauer & Schubert, 1916: 464.

    Bolitobius princeps: Nakane, 1963: 95; Schülke, 1993: 757; L.-Z. Li and Sakai, 1998: 84; Herman, 2001: 696.

    Diagnosis. Body length 5.8-6.2 mm. Head, pronotum and abdomen black; elytra brown; antennomeres 1-2 brown, 3-7 or 3-9 black, 8-11 or 10-11 light yellow; mouthparts brown; legs reddish brown to black. Head small, ocular setae as long as eye length. Antenna long, relative length of 11 antennomeres 15: 7: 10: 9: 8: 8: 7: 7: 7: 7: 15. Labial palpus (Fig. 3) with apical palpomere large, 2.8 times as long as second. Pronotum convex. Elytra 2.1 times as long as wide; setigerous punctures arranged in rows; sutural row with 12; posterior row with 5-6, lateral row with 12, each discal row with 9-11 punctures. Male sternite VIII (Fig. 4) with a pair of patches of setae on middle of apex; male sternite IX (Fig. 5) with some setae on apex. Paramere (Figs. 6, 7) long, slender and curved with 7-8 setae on middle. Median lobe robust; internal sac well sclerotized.

    Materials examined. KOREA: Chungnam Prov.: 1♂, Daejeon-city, Dong-gu, Daejeon Univ., 1 VII-22 VII 2006, Malaise trap; 2♂2♀, Daejeon-city, Dong-gu, Daejeon Univ., 1-17 V 2006, Malaise trap (1♂1♀ on slide) 1♂, Daejeon-city, Dong-gu, Daejeon Univ., 16 V-5 VI 2006, Malaise trap; 1♂, Daejeon-city, Dong-gu, Daejeon Univ., 21 VII - 9 VIII, Malaise trap; 1♂ on slide, Daejeon-city, Yuseong-gu, Chungnam Univ., 15 V-4 VI 2003, JH Choi, DH Lee, SM Choi, ex FIT; 1♂, Daejeon-city, Yuseong-gu, Chungnam Univ., 4-18 VI 2003, JH Choi, DH Lee, SM Choi, ex FIT; 1♂, Buyeo-gun, Gyuammyeon, Sumok-ri, 1-15 VI 2005, JW Lee, ex Malaise trap.

    Distribution. Korea, China (Beijing, Jilin), Japan.

    Remarks. This species can be easily distinguished from the other Korean species by brown elytra and male sternite VIII with a pair of patches of setae.

    Acknowledgements

    This work was supported by a grant from the National Institute of Biological Resources (NIBR), funded by the Ministry of Environment (MOE) of the Republic of Korea (NIBR201839201 and NIBR201901201).

    KSAE-58-2-129_F1.gif

    Bolitobius princeps. 1: Habitus, dorsal view, 5.9 mm; 2: habitus, lateral view.

    KSAE-58-2-129_F2.gif

    Bolitobius princeps. 3: Labium, ventral view; 4: male sternite VIII, ventral view; 5: male sternite IX, ventral view; 6: male genitalia, dorsal view; 7: male genitalia, lateral view. Scale bars = 0.5 mm.

    Reference

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    2. Bernhauer, M. , Schubert, K. ,1916. Staphylinidae V, in: Schenkling, S. (Ed.), Coleopterorum Catalogus. 5: 409-498. Berlin: Junk. [Note: Date of publication: March 30, 1916].
    3. Herman, L.H. ,2001. Catalog of the Staphylinidae Part II. Bull. Am. Mus. Nat. Hist. 265, 708-711.
    4. Leach, W.E. ,1819. In G. Samouelle, The Entomologist’s useful compendium; or an introduction to the knowledge of British insects, comprising the best means of obtaining and preserving them, and a description of the apparatus generally used; together with the genera of Linné, and the modern method of arranging the classes Crustacea, Myriapoda, spiders, mites, and insects from their affinities and structure, according to the views of Dr. Leach. Also an explanation of the terms used in entomology; a calendar if the times of appearance, and usual situations of near 3000 species of British insects; with instructions for collection and fitting up objects for the microscope. 496 pp, London: Thomas Boys.
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