Thursday, 1 December 2016

Five newly recorded species of the genus Streblocera Westwood (Hymenoptera: Braconidae: Euphorinae) from Korea

Published Date
1 December 2016, Vol.9(4):468471, doi:10.1016/j.japb.2016.09.003
Open Access, Creative Commons license, Funding information

Original Article

Author 
  • Hye-Rin Lee a,b,,
  • Tae-Ho An a
  • Bong-Kyu Byun b
  • Deok-Seo Ku a
  • aThe Science Museum of Natural Enemies, Geochang, South Korea
  • bDepartment of Biological Science and Biotechnology, Hannam University, Yuseong-gu, Daejeon, South Korea

Abstract

Five species of the genus Streblocera (Hymenoptera: Braconidae: Euphorinae) are reported for the first time from Korea: Streblocera (Eutanycerus) affinis Belokobylskij, Streblocera (E.) galinae Belokobylskij, Streblocera (E.) lienhuachihensis Chou, Streblocera (E.) major Belokobylskij, and Streblocera (Streblocera) spasskensisBelokobylskij. Diagnosis and photographs for the species are provided.

Keywords

  • Braconidae
  • Hymenoptera
  • Korea
  • New record
  • Streblocera

  • Introduction

    The genus Streblocera is characterized by the raptorial antenna of the female, probably an adaptation to grasping the host (Shaw, 1985 and Chou, 1990). This genus has 98 species recorded throughout the world, including 26 species in the East Palaearctic fauna (Yu et al 2012).
    Belokobylskij (1987) divided Streblocera Westwood into three subgenera: Aisastreblocera Belokobylskij, Cosmophoridia Hedqvist, and Streblocera Westwood. Chen and van Achterberg (1997) reassessed the subgeneric division into five subgenera: Aisastreblocera Belokobylskij, Cosmophoridia Hedqvist, EutanycerusFoerster, Villocera Chen and van Achterberg, and Streblocera Westwood. Belokobylskij (2000b) agrees with the establishment of Cosmophoridia and Eutanycerus, but Villocera Chen and van Achterberg, a junior synonym of Eutanycerus Foerster. We followed the taxonomic treatment by Belokobylskij (2000b)in this paper.
    The host of Streblocera is almost unknown, except for only two species: Streblocera okadai Watanabe, known as a solitary endoparasitoid of Galerucinae, and Medythia nigrobilineata (Motschulsky; Chrysomelidae), its mature larva emerge from the adult of the host (Watanabe, 1942Maeto and Nagai, 1985 and Chen and van Achterberg, 1997). Also, Streblocera fulviceps is a parasitoid of Chaetocnema cilindrica Baly (Chrysomelidae; He, 1984 and Chen and van Achterberg, 1997).
    To date 10 species of Streblocera in Korea are known (Papp, 1985Ku, 1997 and Belokobylskij and Ku, 1998Ku et al 2001). In this study, five species of Strebloceraare reported for the first time from Korea. We provide a diagnosis and photographs for the species.

    Materials and methods

    All examined materials are deposited in the Science Museum of Natural Enemies (SMNE), Geochang, Korea. The specimens were photographed with Leica DMS 1000 using the Leica Application Suite (Leica Camera; Aktiengesellschaft, Wetzlar, Germany). Terminology used in this paper follows that of van Achterberg (1993). Abbreviations used in this study are as follows: LT, light trap; MT, malaise trap.
    • Systematic accounts
    • Family Braconidae Nees, 1811
    • Genus Streblocera Westwood, 1833 (긴자루마디고치벌속 :신칭)
    • Streblocera (Eutanycerusaffinis Belokobylskij, 1987 유사긴자루마디고치벌 (신칭)
    • Figures 1–8. Adults of Streblocera spp.. 1, Habitus of S. (Eutanycerusaffinis ♀, lateral aspect; 2, antennae and metasoma of S. (E.) affinis ♀, lateral aspect; 3, habitus of S. (E.) affinis ♂, lateral aspect; 4, antennae and mesosoma of S. (E.) affinis ♂; 5, habitus of S. (E.) galinae ♂, lateral aspect; 6, antennae of S. (E.) galinae ♂, lateral aspect; 7, habitus of S. (E.) lienhuachihensis ♀, lateral aspect; 8, antennae and head of S. (E.) lienhuachihensis ♀, lateral aspect.
    • Streblocera (Cosmophoridiaaffinis Belokobylskij, 1987: 172.
    • Streblocera (EutanycerusaffinisBelokobylskij, 2000a: 322.
    Diagnosis. Body length 4.7 mm. Antenna 24-segmented. Width of head twice its median length. Ninth antennal segment with a weakly expressed outgrowth apically. Scape 1.3 times as long as height of head. Seven basal flagellar segments not fused. Seventh flagellar segment with short ventroapical prominences. Sternauli deep. First abdominal tergite covered with coarse rugae. Pterostigma black.
    Material examined. KOREA: 1♀, Oeunsa Palgongsa, Dongsan-ri, Bugye-myeon, Gunwi, Gyeongbuk (LT), 20-21 vii 1998 (So-Yeon Kim); 1♀, Suraenumu, Mt. Chiak, Gangrim-ri, Gangrim-myeon, Wonju, Gangwon (ML), 24 viii 1996 (Jung-Suk Park); 1♀, Yangpyeong Youth Training Center, Yongmunsa, Yongcheon-ri, Okcheon-myeon, Yangpyeong, Gyeonggi (LT), 28-29 vii 2000 (Seung-Hyeon Baek); 1♀, same locality, (Tae-Ho An); 3♂, same locality, (Seung-Hyeon Baek); 2♂, same locality, (Tae-Ho An); 1♂, same locality, (Jung-Suk Park)-coll. SMNE.
    Distribution. Korea (new record), Russia (Khabarovsk Kray, Primorsky Krai).
    Host. Unknown.
    Diagnosis. Body length 2.7 mm. Antenna 21–23-segmented. Basal segment of antenna a little shorter than the height of the head. Eighth and ninth antennal segments without outgrowth. Scape slightly shorter than height of head. Seven basal flagellar segments not fused. Sternauli small. First abdominal tergite with very weakly expressed rugae, sometimes almost smooth. Body black or dark brown, pterostigma pale yellow.
    Material examined. KOREA: 1♂, Seong-Bok Lee (birthplace), Nodong-ri, Yongpyeong-myeon, Pyeongchang, Gangwon, 24 vi 1993 (Yu-Hyeon Baek)-coll. SMNE.
    Distribution. Korea (new record), Russia (Khabarovsk Kray, Primorsky Krai, Sakhalin Oblast).
    Host. Unknown.
    Diagnosis. Body length 4.3 mm. Antenna 20-segmented. Scape long, incrassate, in basal 0.3 with horn. Flagellum geniculated at seventh flagellar segment. First flagellar segment with 11 sensilla; 1.9 times as long as wide. Sixth flagellar segment and seventh flagellar segment produced beneath into hook-like prominences at apex. Notauli crenulate. Sternaulus foveolate. First abdominal tergite costate. Legs yellowish brown, pterostigma brown.
    Material examined. KOREA: 2♀, Mt. Imyeong, jikjeon-ri, Bukcheon-myeon, Hadong, Gyeongnam (LT), 28-29 ⅷ 2000 (Ju-Hwan Son); 2♀, same locality, 8-9 ⅶ 1997 (Jin-Seong Park)-coll. SMNE.
    Distribution. Korea (new record), China (Hubei), Taiwan.
    Hosts. Unknown.
    • Streblocera (Eutanycerusmajor Belokobylskij, 1987 큰긴자루마디고치벌 (신칭)
    • Figures 9–12. Adults of Streblocera spp.. 9, habitus of S. (E.) major ♀, lateral aspect; 10, antennae of S. (E.) major ♀, lateral aspect; 11, habitus of S. (Strebloceraspasskensis ♀, lateral aspect; 12, antennae and mesosoma of S. (S.) spasskensis ♀, lateral aspect.
    • Streblocera (Cosmophoridiamajor Belokobylskij, 1987: 170.
    • Streblocera (EutanycerusmajorBelokobylskij, 2000a: 319.
    Diagnosis. Body length 4.6–5.1 mm. Antenna 23–24-segmented. Frons with strong striae medially. Temple long. Eye transverse diameter equal to or slightly greater. Scape with small tooth; short outgrowth. Second flagellar segment to sixth flagellar segment longer than maximum width. Sixth flagellar segment with distinct apical prominence. Thorax and first abdominal tergite reddish brown to black.
    Material examined. KOREA: 2♀, Mt. Hakga, Shinjeon, Pukhu, Andong Gyeongbuk, 19 ⅶ 1998 (Deok-Seo Ku); 1♀, Mt. Cheonggye, Chenggyesa, Cheonggye, Uiwang, Gyeonggi, 16 ⅵ 1998 (Deok-Seo Ku); 1♀, Dogyeswimteo, Banyabong (Mt. Jiri), Jwasa-ri, Sandong-myeon, Gurye, Jeonnam (LT), 12-13 ⅶ 2002 (Tae-Ho An)-coll. SMNE.
    Distribution. Korea (new record), Russia (Primorsky Krai).
    Host. Unknown.
    Diagnosis. Body length 2.6–2.8 mm. Antenna 17-segmented. Scape strongly incrassate, short; in basal 0.4 with large wide and curved up tooth. First flagellar segment flat, wide and irregularly triangular. Notauli entirely sculptured. Prescutellar depression long and deep. Sternauli shallow, weakly curved. First tergite uniformly widened from base to apex. Pterostigma light brown or brown.
    Material examined. KOREA: 1♂, Seoksan, Deokho-ri, Hai-Myeon, Goseong, Gyeongnam (LT), 9-10 ⅷ 1999 (Je-Sik Jeon)-coll. SMNE.
    Distribution. Korea (new record), Russia (Primorsky Krai).
    Host. Unknown.

    Acknowledgments

    This work was supported by a grant from the National Institute of Biological Resources, funded by the Ministry of Environment of the Republic of Korea(NIBR201501203).

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    • Peer review under responsibility of National Science Museum of Korea (NSMK) and Korea National Arboretum (KNA).
    • ∗ 
      Corresponding author.
    Copyright © 2016, National Science Museum of Korea (NSMK) and Korea National Arboretum (KNA). Production and hosting by Elsevier.
    Open access funded by Korean Biodiversity Information Facility (KBIF) in National Science Museum of Korea and Korea

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