Journal Search Engine
Search Advanced Search Adode Reader(link)
Download PDF Export Citaion korean bibliography PMC previewer
ISSN : 1225-0171(Print)
ISSN : 2287-545X(Online)
Korean Journal of Applied Entomology Vol.57 No.4 pp.271-273
DOI : https://doi.org/10.5656/KSAE.2018.08.0.033

First Report of Genus Hylis Gozis, 1886 (Coleoptera: Eucnemidae) with a Species, Hylis harmandi (Fleutiaux, 1923) from Korea

Jinbae Seung and Seunghwan Lee*
Insect Biosystematics Laboratory, Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Korea
*Corresponding author: seung@snu.ac.kr
July 28, 2018 August 30, 2018 September 28, 2018

Abstract


An eucnemid genus, Hylis Gozis, 1886, is firstly recognized based on a species, Hylis harmandi (Fleutiaux, 1923), from Korea. Redescription, images of diagnostic characters are provided.



Hylis Gozis, 1886 (딱정벌레목: 어리방아벌레과)에 속하는 한국 미기록종 Hylis harmandi (Fleutiaux, 1923)에 대한 보고

승진배,이승환*
서울대학교 농생명공학부 곤충계통분류학실험실

초록


어리방아벌레과에 속하는 Hylis Gozis, 1886 속의 Hylis harmandi (Fleutiaux, 1923)가 한국에서 처음 확인되었다. 이 종에 대한 재기재와 중요한 형질 사진이 제시되었다.



    The genus HylisGozis, 1886 is a genus belonging to tribe Epiphanini (Eucnemidae: Melasinae). They are widely distributed in Holarctic, Australian, and Oriental region. This group consists of 18 species worldwide, among them, 11 species are presented in Palaearctic region, including four Japanese species (Muona, 2007, 2011;Otto, 2016).

    The members of Hylis are known as saproxylic beetles. Adults of several species were observed on Carya, Fagus, Populus, Picea, Carpinus, Castaneus, Fraxinus, Quercus, and Tilia (Blatchley, 1910;Leiler, 1976;Leseigneur, 1978;Muona, 1993).

    In the present study, we firstly report the genus Hylis with a species, Hylisharmandi (Fleutiaux, 1923) from Korea. We provide redescription and images of diagnostic characters.

    Materials and Methods

    All samples examined for the present study were collected by the flight intercept traps (FIT, window trap) from Gangwon province in 2015. All collected samples were preserved in 95% ethyl alcohol (ETOH) and made into dried specimens by double mounted method. Morphological images were taken with a digital camera (EOS-600D, CANON, Japan) through MP-E 65 mm lens. All examined specimens are deposited in the insect collection of the College for Agriculture and Life Sciences, Seoul National University (CALS, SNU, Seoul, Korea).

    Systematic accounts

    Family Eucnemidae Eschscholtz, 1829

    Subfamily Melasinae Fleming, 1821

    Tribe Epiphanini Muona, 1993

    Genus HylisGozis, 1886

    HylisGozis, 1886: 21. Type species: Eucnemis procerulus Mannerheim, 1823.

    Diagnosis. Body oblong, narrowing craniad and caudad; antennae more or less serrate, antennomeres mostly keeled medially, antennomere IV shorter than II-III combined; hypomeron simple, without antennal groove; metepisternum gradually widened posterad; metacoxal plate expanded inward; aedeagus dorsoventrally compressed, median lobe deeply bifurcate apically (Bonvouloir, 1875; Fleutiaux, 1923, 1935;Hisamatsu, 1985;Muona 2000, 2011;Otto, 2016).

    Hylisharmandi (Fleutiaux, 1923)

    Hypocoelus harmandiFleutiaux, 1923: 326.

    Redescription.Male (Fig. 1A, C, and D). Body length 3.4-3.9 mm with mostly black surface. Head weakly inserted into prothorax; frons with one distinct crest with dense hair; apical margin of frontoclypeal region broadly rounded, about 2.5 times wider than distance between antennal sockets (Fig. 1G). Antennae (Fig. 1E) weakly serrate; antennomere III about 1.45 times longer than wide, 1.85 times longer than II, and 1.2 times longer than IV; antennomeres IV-X gradually lengthened; apical antennomere about 2.9 times longer than wide, 1.65 times longer than X. Pronotum abruptly narrowed anterad from basal two-thirds, about 1.2 times wider than long; disc with one weak medio-longitudinal groove at basal half. Elytra gradually narrowed posterad; ratio length to combined width about 2.3. Prosternum gradually widened anterad. Hypomeron simple, without antennal groove. Metepisternum (Fig. 1I) gradually widened posterad. Metacoxal plate (Fig. 1K) expanded inward, medially about 2.3 times wider than laterally. Legs slender; metatarsomere I about 1.4 times longer than II-IV combined; metatarsomere II about 1.4 times longer than III; metatarsomere V about 1.1 times longer than II (Fig. 1J). Abdomen strongly connate; abdominal ventrite V truncate at apex (Fig. 1L). Aedeagus (Fig. 1M and N) about 4.6 times longer than wide, pubescent at dorsal surface; median lobe elongate, deeply bifurcate at apex; lateral lobes slender, with inward apical tooth. FeMale (Fig. 1B). Similar to Male, but can be distinguished from Male by following characters: Body length 3.9-4.7 mm; frons with indistinct crest, simply pubescent; frontoclypeal region wider at base, anterior edge about 2.2 times wider than distance between antennal sockets (Fig. 1H); antennomere III about 1.5 times longer than wide, about 1.7 times longer than II and IV; antennomeres IV-X more stubby; apical antennomere about twice longer than wide (Fig. 1F).

    Specimens examined. 1♂1♀, Yeongheung-ri, Yeongwoleup, Yeongwol-gun, Gangwon-do, Korea, 19.vi-02.vii.2015, J.B. Seung and S.H. Lee leg., on FIT; 1♀ Yeongheung-ri, Yeongwol-eup, Yeongwol-gun, Gangwon-do, Korea, 02-16.vii. 2015, J.B. Seung and S.H. Lee leg., on FIT; 1♂ Yeongheung-ri, Yeongwol-eup, Yeongwol-gun, Gangwon-do, Korea, 16-30.vii. 2015, J.B. Seung and S.H. Lee leg, on FIT.

    Distribution. Korea (New record), China (Northeast), Japan, Russia (Far East).

    Remarks.Hylisharmandi is easily distinguished from other eucnemids by densely hairy crest on frons in Male. Hisamatsu (1985) described that combined length of antennomeres IV-V about 1.7-1.9 times longer than III. In the result of present study, ratio 1.7 is corresponded to Male and 1.9 is relevant to feMale.

    Acknowledgements

    We are very thankful to Mr. Seunghyun Lee for assistance to collect samples for this study. This study 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 (NIBR201801103).

    KSAE-57-271_F1.gif

    Hylisharmandi (Fleutiaux, 1923). A, C-E, G, I-N, Male; B, F, H, feMale. A-B, dorsal habitus; C, ventral habitus; D, lateral habitus; E-F, antenna; G-H, frons; I, metepisternum; J, metatarsi; K, metacoxal plate; L, abdominal ventrite 5; M-N, aedeagus (scale bar for A-F: 1 mm; G-N: 0.5 mm).

    Reference

    1. Blatchley, W.S. (1910). An illustrated descriptive catalogue of the Coleoptera or beetles (exclusive of the Rhynchophora) known to occur in Indiana, with bibliography and descriptions of new species. Indianapolis, Burford, 1386 pp.
    2. Bonvouloir, H .A.de. (1875). Monographie de la Famille des Eucnémides, 4th part. Annales de la Société entomologique de France. 40 Suppl., 561-907, 37-42 pls.
    3. Eschscholtz, J.F.G. (1829). Elaterites, Eintheilung derselben in Gattungen . Thon’s Entomologisches Archiv.2(1), 31-35.
    4. Fleming, E. (1821). Coleoptera. Synopsis to the 4th, 5th and 6th editions of Encyclopedia Britannica 5, 48-51.
    5. Fleutiaux, E. (1923). Les Melasidae du Japon . Annales de la Société Entomologique de France91, 291-328.
    6. Fleutiaux, E. (1935). Essai d’un genera des Eucnemididae paléarctiques . Revue Française d’Entomologie2, 1-18.
    7. Gozis, M.P. (1886). Recherche de l’espéce typique de quelques ancient genres. Rectifications synonymiques et notes diverses, 36 pp.
    8. Hisamatsu, S. (1985). Eucnemidae. Colored illustrations of the Coleoptera of Japan, vol. III. Osaka, pp. 40-51, 8-9 pls.
    9. Leiler, T.E. (1976). Zur Kenntnis der Entwicklungsstadien und der Lebensweise nord und mitteleuropaischer Eucnemiden (Col.) . Entomologische Blatter72(1), 10-50.
    10. Leseigneur, L. (1978). Les Hypocoelus (Col. Eucnemidae) de la faune France Systematique et distribution . L’Entomologiste34(3), 105-123.
    11. Mannerheim, C.G. (1823). Eucnemis, insectorum genus, Monographice tractatum iconibusque íllustratum. Petropoli ex offícina directorii institutionis publicae. 13-36, 2 pl.
    12. Muona, J. (1993). Review of the phylogeny, classification and biology of the family Eucnemidae (Coleoptera) . Entomol. Scand.Suppl. 44, 1-133.
    13. Muona, J. (2000). A revision of the Nearctic Eucnemidae . Acta Zool. Fenn.212, 1-106.
    14. Muona, J. (2007) Family Eucnemidae, in: Löbl, I. , Smetana, A. (Eds.), Catalogue of Palaearctic Coleoptera, Vol. 4, Elateroidea—Derodontoidea—Bostrichoidea—Lymexyloidea—Cleroidea—Cucujoidea. Apollo Books, Stenstrup, Denmark, pp. 81-86.
    15. Muona, J. (2011) Eucnemidae.info, in: Finnish Museum of Natural History. http://dol.luomus.fi:8080/ (Accessed on 15 May, 2018).
    16. Otto, R.L. (2016) The false click beetles (Coleoptera: Eucnemidae) of Laos . Entomol. Basiliensia et Collectionis Frey35, 181-427.