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ISSN : 1225-0171(Print)
ISSN : 2287-545X(Online)
Korean Journal of Applied Entomology Vol.55 No.3 pp.197-203
DOI : https://doi.org/10.5656/KSAE.2016.05.0.003

Three New Records of the Genus Anteon Jurine, 1807 (Hymenoptera: Dryinidae: Anteoninae) from South Korea

Chang-Jun Kim, Jong-Wook Lee*
Department of Life-Sciences, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
Corresponding author:jwlee1@ynu.ac.kr
January 27, 2016 May 26, 2016 June 7, 2016

Abstract

Three newly recorded species of the genus Anteon Jurine (Hymenoptera: Dryinidae: Anteoninae), A. brachycerum (Dalman, 1823), A. confusum Olmi, 1991 and A. infectum (Haliday, 1837), are reported from South Korea. A revised identification key to the South Korean species, diagnosis, illustrations and photographs of the diagnostic characteristics are provided herein.


한국산 원집게벌속 (벌목: 집게벌과: 원집게벌아과)의 한국 미기록 3종의 보고

김 창준, 이 종욱*
영남대학교 생명과학과

초록

한국산 원집게벌속(Anteon)의 국내 미기록 3종, 짧은원집게벌(Anteon brachycerum (Dalman)) (신칭), 한줄원집게벌(Anteon confusum Olmi) (신칭), 광교원집게벌(Anteon infectum (Haliday)) (신칭)을 기록한다. 검색표, 식별형질, 주요 형질에 대한 그림 및 사진을 함께 제시한다.


    National Institute of Biological Resources
    NIBR201601207Ministry of Environment

    Genus AnteonJurine, 1807 is one of the largest genera of the family Dryinidae, including 423 valid species in all world and 48 species in the Eastern Palaearctic region (Xu et al., 2013; Olmi & Xu, 2015). In East Asia, 107 species are recorded in China, 18 species in Japan and 10 species in the Russian Far East (Xu et al., 2013; Olmi & Xu, 2015). The South Korean species of Anteon were studied in recent years mainly by Kim et al. (2012) and Kim and Lee (2013, 2014), resulting in 31 recorded species.

    During our recent studies on Dryinidae, more than 500 Anteon specimens were examined. They were collected in various countries of the Eastern Palaearctic region (South Korea, China, Japan, Russian Far East). As result of this, three newly recorded species of Anteon were identified in South Korea. They are described and illustrated herein. In addition, an updated identification key to Anteon species from South Korea is presented.

    Materials and Methods

    All specimens are deposited in the Yeungnam University (YNU), Gyeongsan, South Korea. The terminology used in the present study follows that of Olmi (1984, 1994, 1999). The following abbreviations are used: OL, distance between the inner edges of a lateral ocellus and the median ocellus; OOL, distance from the outer edge of a lateral ocellus to the compound eye; OPL, distance from the posterior edge of a lateral ocellus to the occipital carina; POL, distance between the inner edges of two lateral ocelli; TL, distance from the posterior edge of an eye to the occipital carina; MT, Malaise trap.

    Systematic accounts

    Genus AnteonJurine, 1807

    AnteonJurine 1807: 302. Type species: Anteon jurineanum Latreille, 1809, by monotypy.

    Anteon brachycerum (Dalman, 1823) 짧은원집게벌 (신칭) (Figs 1, 4, 7)

    Dryinus brachycerus Dalman, 1823: 12.

    Anteon brachycerum (Dalman): Richards, 1939: 250.

    Diagnosis of female. Body length 2.35 mm. Head, antenna, mesosoma, legs and metasoma black except mandible, tibiae and tarsus brown. Antennal segments in following proportions: 24: 11: 11: 10: 9: 10: 10: 10: 9: 15. Head dull and granulate, frontal line complete and indistinct; POL: 13; OL: 6; OOL: 14; OPL: 5; TL: 8; occipital carina complete. Pronotum, scutum and scutellum shiny and punctate. Notauli incomplete, reaching approximately 0.3× length of scutum. Propodeum reticulate rugose, with strong transverse keel between dorsal and posterior surface; posterior surface with two longitudinal keels and median area shiny and smooth, rugose near margins. Forewing hyaline, without dark transverse bands; stigmal vein curved, distal part of stigmal vein much shorter than proximal part (11: 20). Segment I of protarsus 3.0× length of segment IV. Enlarged claw with proximal prominence bearing one long bristle. Segment V of protarsus with 10 bristles; distal apex with about 5 lamellae.

    Male. Unknown in South Korea (see description in Olmi & Xu., 2015).

    Material examined. South Korea: 1♀, Gyeongsangbuk-do, Cheongdo-gun, Unmun-myeon, Mt. Unmunsan, Ssalbawi (U7), 35°38'08"N, 129°01'27"E, 20.IV-6.VI.2013 (MT), J.W. Lee (YNU).

    Hosts. Cicadellidae Macropsinae: Oncopsis flavicollis (Linnaeus) (Russia), Oncopsis sp. (United Kingdom).

    Distribution. South Korea (new record), Austria, Belgium, Czech Republic, Denmark, Esthonia, Finland, France, Germany, Hungary, Ireland, Japan, Nepal, Netherlands, Norway, Romania, Russia (European), Sweden, United Kingdom.

    Remarks. The unique female specimen from South Korean has notauli shorter than in females from other countries (South Korean specimens=3:10; other country specimens=4-5:10).

    Anteon confusumOlmi, 1991 한줄원집게벌 (신칭) (Figs. 2, 5, 8)

    Anteon confusumOlmi, 1991: 171.

    Diagnosis of female. Body length 3.78 mm. Head black, except clypeus, mandible, face between the antennal toruli yellowish brown; antenna yellowish brown except segments I-II yellow, dorsal part of VIII-X darker; mesosoma and metasoma black, except posterior margin of pronotum and lower part of lateral region of pronotum brown; legs yellow. Antennal segments in following proportions: 24: 12: 24: 20: 18: 17: 18: 16: 16: 23. Head shiny and punctate, except ocellar region unsculptured; anterior half of face and vertex behind the ocelli rugose to reticulate, frontal line complete; POL: 10; OL: 8; OOL: 12; OPL: 10; TL: 10; occipital carina complete. Pronotum, scutum and scutellum shiny and sparsely punctate except anterior part of pronotum rugose. Notauli incomplete, reaching approximately 0.9× length of scutum. Propodeum reticulate rugose, with strong transverse keel between dorsal and posterior surface; posterior surface with two longitudinal keels and median area as rugose as lateral areas. Forewing hyaline, without dark transverse bands; stigmal vein curved, distal part of stigmal vein much shorter than proximal part (1: 2). Segment I of protarsus 2.0× length of segment IV. Enlarged claw with proximal prominence bearing one long bristle. Segment V of protarsus with one row of 23 lamellae; distal apex with about 8 lamellae.

    Male. Unknown.

    Material examined. South Korea: 1♀, Gyeonggi-do, Anyangsi, Manan-gu, Gwanak Arb., Alt. 140 m, 37°25'06"N, 126°56'50"E, 26.VI-4.VII.2007 (MT), J.O. Lim (YNU).

    Hosts. Unknown.

    Distribution. South Korea (new record), China (Shanxi, Taiwan).

    Remarks.Anteon confusum is a very rare species, and formerly only three female specimens were collected: 2♀♀ from Taiwan (Oriental China) and 1♀ from Shanxi (Eastern Palaearctic China).

    Anteon infectum (Haliday, 1837) 광교원집게벌 (신칭) (Figs. 3, 6, 9)

    Dryinus infectus Haliday in Walker, 1837: 419.

    Anteon infectum (Haliday): Richards, 1939: 258.

    Diagnosis of male. Body length 4.28 mm. Head black, except mandible yellowish brown; antenna brown with dorsal part of segments II-VIII dark banded; mesosoma and metasoma black; legs yellowish brown, except basal half of metacoxa black, apical half of metafemur dark brown. Antenna filiform; antennal segments in following proportions: 16: 8: 10: 9: 9: 9: 9: 9: 9: 14. Head shiny and reticulate rugose, frontal line complete; POL: 16; OL: 8; OOL: 12; OPL: 10; TL: 10; occipital carina complete. Pronotum, scutum and scutellum shiny and punctate. Notauli incomplete, reaching approximately 0.5× length of scutum. Propodeum reticulate rugose, with strong transverse keel between dorsal and posterior surface; posterior surface with two longitudinal keels and median area shiny and smooth, rugose near margins. Forewing hyaline, without dark transverse bands; stigmal vein curved, distal part of stigmal vein much shorter than proximal part (2: 7). Male genitalia without distal inner process, with dorsal membranous process.

    Female. Unknown in South Korea (see description in Olmi & Xu., 2015).

    Material examined. South Korea: 1♀, Gyeonggi-do, Suwon-si, Jangan-gu, Sangwanggyo-dong, Mt. Gwanggyosan, 20.IV- 5.VIII.2011 (MT), J.W. Lee (YNU).

    Hosts. Cicadellidae Iassinae: Iassus scutellaris (Fieber) (Italy), Iassus lanio (Linnaeus) (Italy, United Kingdom).

    Hyperparasitoids. Ismaridae: Ismarus halidayi Förster (United Kingdom).

    Distribution. South Korea (new record), Transpalaearctic from Europe to Russian Far East, Japan.

    Key to the South Korean species of Anteon

    Females (unknown in A. albonigrum Olmi, A. autumnale Olmi, A. devriesi Olmi, A. ingenuum Olmi, A. peterseni Olmi, A. pilosum Xu, Olmi & He, A. songyangense Xu, He & Olmi, A. sulawesianum Olmi, A. yuani Xu, He & Olmi, A. worakense Kim & Lee)

    • 1. Segment IV of protarsus at most 0.50x as long as or much shorter than segment I; protarsal segment III or IV produced into hook ········································································· 2

      • - Segment IV of protarsus as long as, or longer than, or little shorter than segment I (in the last case, at least 0.66x as long as segment 1); usually protarsal segment 2 produced into hook ·············································································· 11

    • 2. Posterior surface of propodeum without longitudinal keels ······················································································· 3

      • - Posterior surface of propodeum with two longitudinal keels ······················································································· 4

    • 3. Notauli absent or hardly shortly visible near anterior margin of scutum ··········································· A. metuendum Olmi

      • - Notauli reaching about 0.30-0.50x length of scutum ·········· ······················································ A. jurineanum Latreille

    • 4. Segment V of protarsus laterally expanded and forming wide lamina ···································································· 5

      • - Segment V of protarsus normally shaped, not expanded to form wide lamina ···························································· 6

    • 5. Notauli reaching approximately 0.50x length of scutum; head with POL about as long as OOL ······························· ·················································· A. magnatum Kim & Lee

      • - Notauli very short, only shortly visible near anterior margin of scutum; head with POL longer than OOL ····················· ······························································ A. wushense Olmi

    • 6. Head completely and strongly reticulate rugose; segment IV and occasionally also segment III of protarsus produced into hook ········································································· 7

      • - Head not or partly reticulate rugose; segment III of protarsus produced into hook ·························································· 8

    • 7. Notauli reaching about 0.30x length of scutum; head with OOL about as long as OL ··············· A. reticulatum Kieffer

      • - Notauli reaching about 0.40-0.50x length of scutum; head with OOL much longer than OL ········ A. esakii Yasumatsu

    • 8. Notauli reaching approximately 0.65-0.90x length of scutum ······················································································· 9

      • - Notauli at most reaching 0.30-0.60x length of scutum ··· 10

    • 9. Head black, except mandible testaceous ··· A. medium Olmi

      • - Head black, except mandible, clypeus and part of face testaceous ·························· A. nanlingense Xu, Olmi & He

    • 10. Distal part of segment V of protarsus approximately as long as proximal part ··· A. septentrionale Xu, He & Olmi

      • - Distal part of segment V of protarsus much shorter than proximal part ······························································· 11

    • 11. Antenna black; OOL much longer than OL; notauli reaching 0.40-0.50x length of scutum ····························· ··············································· A. brachycerum (Dalman)

      • - Antenna yellow; OOL shorter than OL; notauli reaching 0.30x length of scutum ················ A. flavicorne (Dalman)

    • 12. Posterior surface of propodeum without longitudinal keels ························································ A. achterbergi Olmi

      • - Posterior surface of propodeum with two longitudinal keels ············································································ 13

    • 13. Posterior surface of propodeum with median area shining, mostly smooth and unsculptured or partly rugose ······· 14

      • - Posterior surface of propodeum with median area dull, completely rugose, approximately as rugose as lateral regions ········································································· 15

    • 14. Posterior surface of pronotum as long as, or longer than scutum ················································· A. munitum Olmi

      • - Posterior surface of pronotum transverse, much shorter than scutum ································································· 15

    • 15. Segment V of protarsus with lamellae not extending continuously to distal apex ······· A. koreanum Kim & Lee

      • - Segment V of protarsus with lamellae extending continuously to distal apex ·································· A. infectum (Haliday)

    • 16. Basal part of segment V of protarsus longer than distal part ·························································· A. confusum Olmi

      • - Basal part of segment V of protarsus shorter than distal part ···················································································· 17

    • 17. Basal part of segment V of protarsus slightly shorter than distal part ············································· A. insertum Olmi

      • - Basal part of segment V of protarsus much shorter than distal part ····································································· 18

    • 18. Segment IV of protarsus about twice as long as segment 1 ································································· A. hilare Olmi

      • - Segment IV of protarsus as long as, or shorter than, or less than twice as long as segment 1 ··································· 19

    • 19. Pronotum with posterior surface transverse, more than twice as broad as long ················································· 20

      • - Pronotum with posterior surface approximately as long as broad; occasionally broader than long, but then never more than twice as broad as long ·········································· 21

    • 20. Prothorax reddish-brown; posterior surface of pronotum less than three times as broad as long ····· A. hikense Olmi

      • - Prothorax black; posterior surface of pronotum at least three times as broad as long ·············· A. exiguum (Haupt)

    • 21. Head black; scutum completely or mainly black; pronotum reddish, or yellow, or testaceous; segment V of protarsus with two rows of lamellae ···················· A. gaullei Kieffer

      • - At least head partly yellow, or reddish; occasionally head and scutum dark brown or black, then pronotum dark brown, or black, or blackish; segment V of protarsus with 1-2 rows of lamellae ···················································· 22

    • 22. Head and mesosoma usually partly or totally testaceous, or yellow, or reddish, never totally black with frons partly testaceous ·································· A. ephippiger (Dalman)

      • - Head and mesosoma black, occasionally with mandible or frons partly testaceous ················································· 23

    • 23. Notauli reaching approximately 0.40x length of scutum · ······························································· A. takenoi Olmi

      • - Notauli at most reaching 0.50-0.70x length of scutum ····· ·························································· A. japonicum Olmi

    Males (unknown in Anteon confusum Olmi, A. hikense Olmi, A. koreanum Kim & Lee, A. magnatum Kim & Lee, A. medium Olmi, A. metuendum Olmi, A. nanlingense Xu, Olmi & He, A. wushense Olmi)

    • 1. Posterior surface of propodeum without longitudinal keels ························································································ 2

      • - Posterior surface of propodeum with two longitudinal keels ······················································································ 4

    • 2. Paramere without distal inner process ······························· ····················································· A. jurineanum Latreille

      • - Paramere with distal inner process ··································· 3

    • 3. Distal inner process of paramere very large and extended along entire paramere ······························ A. devriesi Olmi

      • - Distal inner process of paramere smaller ··························· ··························································· A. achterbergi Olmi

    • 4. Head black, with anterior half of face testaceous ··············· ··························································· A. albonigrum Olmi

      • - Head completely black or brown; at most mandible testaceous; occasionally clypeus testaceous; face always completely black ················································································ 5

    • 5. Paramere without distal inner more or less pointed process ························································································ 6

      • - Paramere with distal inner more or less pointed or rounded process ·········································································· 25

    • 6. Posterior surface of propodeum with median area smooth, almost completely not rugose ·········································· 7

      • - Posterior surface of propodeum with median area as rugose as lateral areas ······························································· 15

    • 7. Head more or less finely punctate and unsculptured among the punctures or granulate, not rugose; face without areolae or strong punctures resembling areolae ··························· 8

      • - Head more or less reticulate rugose (at least on vertex behind ocelli or temples); occasionally head apparently not reticulate rugose, but with strong punctures resembling areolae on the anterior region of the frons ····················· 14

    • 8. Head granulate ························· A. brachycerum (Dalman)

      • - Head more or less finely punctate and unsculptured among the punctures ··································································· 9

    • 9. Proximal membranous process of parameres with inner margin provided of numerous bristles ······························· ················································ A. pilosum Xu, Olmi & He

      • - Proximal membranous process of parameres with inner margin not provided of numerous bristles ······················ 10

    • 10. Notauli reaching approximately 0.3-0.55x length of scutum ··················································································· 11

      • - Notauli reaching approximately 0.6-0.8x length of scutum ···················································································· 12

    • 11. Notauli reaching approximately 0.3-0.55x length of scutum; paramere much shorter than penis ······· A. peterseni Olmi

      • - Notauli reaching approximately 0.50-0.55x length of scutum; paramere approximately as long as penis ············ ·························································· A. autumnale Olmi

    • 12. Notauli reaching approximately 0.7-0.8x length of scutum ······································· A. songyangense Xu, He & Olmi

      • - Notauli reaching approximately 0.5-0.6x length of scutum ···················································································· 13

    • 13. Paramere approximately as long as penis ························ ···························································· A. munitum Olmi

      • - Paramere much shorter than penis ··································· ·················································· A. yuani Xu, He & Olmi

    • 14. Metafemur completely or partly black or brown ········· 15

      • - Metafemur wholly testaceous ······································ 16

    • 15. Vertex behind the ocellar triangle with two oblique keels connecting posterior ocelli to occipital carina ················· ························································ A. esakii Yasumatsu

      • - Vertex behind the ocellar triangle without keels ·············· ························································· A. infectum Haliday

    • 16. Paramere with inner fold provided of mosaic drawing ···· ················································ A. worakense Kim & Lee

      • - Paramere without inner fold provided of mosaic drawing ··························································· A. ingenuum Olmi

    • 17. Scutum punctate, unsculptured among punctures, not granulated ··································································· 18

      • - Scutum granulated, or with anterior half or fourth strongly reticulate rugose and with posterior region strongly punctate ······································································· 27

    • 18. Head shiny, punctate, unsculptured among punctures, at most very slightly rugose on temple and behind ocellar triangle ········································································ 19

      • - Head more or less reticulate rugose, at most with smooth area in front of anterior ocellus ···································· 23

    • 19. Paramere with inner fold provided of mosaic drawing ···· ················································ A. worakense Kim & Lee

      • - Paramere without inner fold provided of mosaic drawing ···················································································· 20

    • 20. Notauli reaching about 0.25-0.35x length of scutum ······· ······························································· A. takenoi Olmi

      • - Notauli reaching about 0.4-0.8x length of scutum ········ 21

    • 21. Notauli reaching about 0.6-0.8x length of scutum; POL less than twice as long as OL ···················· A. hilare Olmi

      • - Notauli reaching about 0.4-0.6x length of scutum; POL more than twice as long as OL ····································· 22

    • 22. Vertex of head behind ocellar triangle not rugose ··········· ···································· A. septentrionale Xu, He & Olmi

      • - Vertex of head behind ocellar triangle slightly rugose ····· ····························································· A. insertum Olmi

    • 23. Notauli reaching about 0.5-0.6x length of scutum ··········· ························································ A. esakii Yasumatsu

      • - Notauli reaching about 0.25-0.30x length of scutum ···· 24

    • 24. Frontal line complete ···················· A. reticulatum Kieffer

      • - Frontal line incomplete, distinct only in front of anterior ocellus ···················································· A. takenoi Olmi

    • 25. Scutum granulated ······················ A. jurineanum Latreille

      • - Scutum punctate, unsculptured among punctures, with anterior half, or third, or fourth, rugose ························ 26

    • 26. Scutum with anterior half rugose; remaining area punctate and unsculptured among the punctures ······· A. japonicum

      • - Scutum with anterior third or fourth rugose; remaining area punctate and unsculptured among the punctures ······· ······························································· A. takenoi Olmi

    • 27. Distal inner process of paramere extended medially and with inner margin excavated ······· A. flavicorne (Dalman)

      • - Distal inner process of paramere extended apically and with inner margin convex or straight, rarely slightly excavated ···················································································· 28

    • 28. Genitalia with dorsal membranous process short, reaching about 0.5x length of parameres ········· A. exiguum (Haupt)

      • - Genitalia with dorsal membranous band long, reaching about 0.6-0.8x length of parameres ······························ 29

    • 29. Head more strongly punctate, unsculptured among punctures, with a short or long frontal line ······································· ···························································· A. gaullei Kieffer

      • - Head finely punctate, smooth, unsculpture among punctures, without frontal line ······················································ 30

    • 30. Head with POL as long as OOL; notauli reaching 0.5x length of scutum ························ A. ephippiger (Dalman)

      • - Head with POL much shorter than OOL; notauli reaching about 0.6-0.7x length of scutum ··· A. sulawesianum Olmi

    Acknowledgments

    The authors thank Dr. M. Olmi (Tropical Entomology Research Center, Viterbo, Italy) for kindly reading and providing many comments on the manuscripts. 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 (NIBR201601207).

    KSAE-55-197_F1.gif

    Head in dorsal view (1–3), Scutum in dorsal view (4–6). 1, 4. Anteon brachycerum, female; 2, 5. A. confusum, female; 3, 6. A. infectum, male. Scale bars: 0.2 mm for 2, 3, 5, 6; 0.1 mm for 1, 4.

    KSAE-55-197_F2.gif

    7. Female chela of Anteon brachycerum; 8. Female chela of A. confusum ; 9. Male genitalia of A. infectum (right half remove). Scale bars: 0.1 mm for 8, 9; 0.05 mm for 7.

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