The family Pteromalidae is one of the numerous and economically important groups of parasitoids, but our knowledge of this group in South Korea is limited. To date, only 39 species of 27 genera belonging to five subfamilies have been recorded from this region (Chang, Youn, 1983; Chang et al., 1994; Cho et al., 2014; Chun et al., 1993; Kamijo, Grissell, 1982; Kamijo, 1983; Mitroiu, 2011; Paik, 1978, 1994; Peck, 1963; Ryoo et al., 1990; Rueda, 1997; Shin et al., 2000; Sureshan, 2003; Sureshan, Narendran, 2001, 2003; Thompson, 1958; Tselikh, 2011).
This study is based on the material from the Applied Entomology Division, Department of Agricultural Biology, National Academy of Agricultural Science (NAAS) and Yeungnam University, Gyeongsan, South Korea (YNU). As a result of this works, three genera (Diglochis Förster, Paracarotomus Ashmead, Stictomischus Thomson) and eight species (Diglochis sylvicola (Walker), Lariophagus obtusus Kamijo, Mokrzeckia lazoensis Tselikh, Paracarotomus cephalotes Ashmead, Lamprotatus duplicatus (Kamijo), L. hikosanus (Kamijo), Stictomischus momoii Kamijo, S. scaposus Thomson) are recorded for the first time in South Korea. Therefore, 35 species of 27 genera in Pteromalinae and 9 species of 6 genera in Miscogastrinae are recorded from South Korea.
Materials and Methods
The present study is based on examination of the material from collections of the Applied Entomology Division, Department of Agricultural Biology, National Academy of Agricultural Science, South Korea (NAAS) and Yeungnam University, Gyeongsan, South Korea (YNU). Morphological terminology, including sculpture and wing venation nomenclature, follows that of Gibson (1997) and Graham (1969). The following abbreviations are used for morphology: POL - posterior ocellar line, minimum distance between posterior ocelli; OOL - ocellocular line, minimum distance between posterior ocellus and compound eye. The following abbreviations are used for type: TD - type depository; TL - type locality; TS - type species; The Natural History Museum, London, England (BMNH); Hokkaido University, Japan (EIHU); Zoological Museum of the Lund University, Sweden (LUZN); Naturhistorisches Museum, Vienna, Austria (NHMV); Queensland Museum, Brisbane, Australia (QMB); South Australian Museum, Adelaide, South Australia (SAMA); United States Museum of Natural History, Washington D.C., United States of America (USNM); Zoological Institute, St. Petersburg, Russia (ZISP); Zoologische Staatssammlung München, Munich, Germany (ZSMM). Finally, the following abbreviations are used for geographical territories: CB - Chungcheongbuk-do; CN - Chungcheongnam-do; GB - Gyeongsangbuk-do; GG - Gyeonggi-do; GN - Gyeongsangnamdo; GW - Gangwon-do; JN - Jeollanam-do.
Systematic accounts
A key to the genera of South Korean Pteromalinae and Miscogastrinae (modified from Bouček, Rasplus, 1991)
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1 Notauli incomplete, not traceable in posterior quarter of mesoscutum. Margin of clypeus with symmetric teeth or without teeth (Fig. 1A). ····················· Pteromalinae …… 2
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- Notauli complete, reaching transscutal groove. Margin of clypeus with distinctly asymmetric teeth (Fig. 1B). ··········· ·························································Miscogastrinae …… 5
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2 Head much wider than pronotum in dorsal view; gena with strong lamina in posterior part. Mesosoma high and compact. Mid coxae with transverse carina in anterior part. Gaster on distinct petiole. ·························· Paracarotomus Ashmead
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3 Postmarginal vein only about as long as or even shorter than stigmal vein. Antenna clavate and stout, inserted below centre of face. - Eyes with distinctly pilosity. Marginal and postmarginal vein with thin bristles. Propodeum with coarse irregular reticulation in posterior part. ···················· ······························································ Diglochis Forster
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4 Hind corners of propodeum prominent and sharp. Propodeum often with punctate nucha. Lower face swollen. Margin of first tergite prodused. ····················· Lariophagus Crawford
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5 Fore wing almost completely pilose, speculum reduced to narrow bare line along basal fold or to bare isolated oval area below parastigma or absent; stigma without bilobed lower margin. ······························· Stictomischus Thomson
Family Pteromalidae Dalman, 1820 금좀벌과
Subfamily Pteromalinae Dalman, 1820 금좀벌아과
Genus DiglochisFörster, 1856 큰입금좀벌속(신칭)
DiglochisFörster, 1856: 65; TS: Pteromalus complanatus Ratzeburg, by monotypy.
Diagnosis. Eyes with long and conspicuous pilosity. Antennal strongly clavate. Outer marginal fringe on fore wing present. Propodeum posteriorly with coarse irregular alveolation. Gaster subcircular (Bouček, Rasplus, 1991).
1Diglochis sylvicola (Walker, 1835) 등에살이큰입금좀벌 (신칭) (Fig. 2A)
Pteromalus sylvicolaWalker, 1835: 481; lectotype designated by Graham (1956: 260), female; TL: Sweden, Unknown; TD: BMNH.
Pteromalus complanatusRatzeburg, 1844: 197; holotype, female; TL: Berlin, Germany; type lost. Possible synonym of Anogmus vala (Walker) by Graham, M.W.R. de V. (1969: 632); synonym of Diglochis sylvicola (Walker) by Graham, M.W.R. de V. (1969: 783)
Dirhicnus complanatus (Ratzeburg, 1844); new combination for Pteromalus complanatus Ratzeburg by Kurdjumov, N.V. (1913: 16)
Diglochis hybomitriDzhanokmen, 1979: 248-251; holotype, female; TL: Tyumenskaya Oblast, Russia; TD: ZISP; synonym of Diglochis sylvicola (Walker) by Dzhanokmen, K.A. (2005: 51)
Material examined. [NAAS] South Korea: 1 female, GG, Ansan-si, Sihwaho Lake <Host: reed>, 3.VII.2001, H.C. Park.
Distribution. Western and Eastern Europe, Transcaucasus, Russia, Iran, Kazakhstan, South Korea, Japan.
Biology. The primary parasitoid of many species of Tabanidae (Diptera) (Stubbs, 1998: 76; Noyes, 2016), also reared from lepidopteran Stilpnotia salicis (Linnaeus) (Lymantriidae) (Noyes, 2016) and Panolis flammea (Denis, Schiffermülle) (Noctuidae) (Noyes, 2016).
Remarks. This species differs from all species of Diglochis Förster in having a dark metallic green body with coppery lustre, with yellowish-brown scape and legs (Dzhanokmen, 1978).
Genus LariophagusCrawford, 1909 그물등자루금좀벌속 (신칭)
LariophagusCrawford, 1909: 52; TS: Lariophagus texanus Crawford, 1909, by monotypy.
Uriellomyia Girault, 1915: 319; TS: Uriellomyia resolutaGirault, 1915, original designation; Synonym of Lariophagus Crawford by Bouček, Z. (1988: 414)
Diagnosis. Propodeum with plicae remote from spiracles with a distinct, reticulate nucha. Most funicular segments quadrate or oblong. Lower face swollen; clypeal margin emarginate. Fore wing immaculate. Margin of first tergite produced (Bouček, Rasplus, 1991).
2Lariophagus distinguendus (Förster, 1841) 바구미살이금 좀벌 (Figs 1F, 2B)
Pteromalus distinguendusFörster, 1841: 17; syntype, male; TL: Unknown; TD: NHMV.
Pteromalus calamisWalker, 1849: 207; lectotype, male; TL: Madeira, Portugal; TD: BMNH; synonym of Lariophagus distinguendus (Förster) by Graham, M.W.R. de V. (1969: 824- 825)
Pteromalus oryzinus Rondani, 1877: 195; TL: Italy; type lost; synonym of Lariophagus distinguendus (Förster) by Delucchi, V. (1955: 174) Fig. 2
Meraporus utibilisTucker, 1910: 341-343; holotype, female; TL: Texas, United States of America; TD: USNM; synonym of Lariophagus distinguendus (Förster) by Gahan, A.B. (1921: 239)
Uriellomyia resolutaGirault, 1915: 319; syntypes, female; TL: Australia-Queensland; TD: QMB; synonym of Lariophagus distinguendus (Förster) by Bouček, Z. (1988: 415)
Nasonia miltoniGirault, 1929: 320; holotype, female; TL: South Australia; TD: SAMA; synonym of Lariophagus distinguendus (Förster) by Bouček, Z. (1988: 415)
Material examined. [NAAS] South Korea: 1 female, GW, Hongchon-gun, 10.IX.1993, J.Y. Chio.
Distribution. Western and Eastern Europe, North Africa, Russia, Turkey, Israel, Kazakhstan, China, Thailand, South Korea, Japan, India, Sri Lanka, North and South America, Australia, New Zealand.
Biology. The primary parasitoid of many insects of Anobiidae, Bostrychidae, Bruchidae, Curculionidae, Dryophthoridae, Ptinidae, Tenebrionidae (Coleoptera) and Cecidomyiidae (Diptera). Secondary parasitoid of hymenopterous insects of family Braconidae, Ichneumonidae and Pteromalidae (Noyes, 2016).
Remarks. This species differs from all species of Lariophagus in having a hind tibia with one spur, combined length of pedicel and flagellum longer than breadth of the head, eye height 1.5× larger than malar space, head in dorsal view 1.7-1.8× broader than length, apical margin of fore wing without cilia, marginal vein shorter than postmarginal vein (Kamijo, 1981).
3Lariophagus obtususKamijo, 1981 그물등자루금좀벌(신 칭) (Figs 1D, 2C)
Lariophagus obtususKamijo, 1981: 84-85; holotype, female; TL: Hokkaido, Japan; TD: EIHU.
Material examined. [NAAS] South Korea: 1 female, JN, Gwangju-si, 15.VI.1994, J.Y. Chio.
Distribution. Russian Far East, South Korea, Japan.
Biology. The primary parasitoid of Ptinus japonicus Reitter (Coleoptera, Ptinidae) (Kamijo, 1981; Noyes, 2016).
Remarks. This species is similar to L. kuwayamai (Kamijo), but differs in having the anterior margin of clypeus without fovea, POL less than 1.5× OOL, nucha occupying at most 0.4× the length of the propodeum, pronotal collar 0.2-0.3× as long as the mesoscutum (Kamijo, 1981).
Genus MokrzeckiaMokrzecki, 1934 고치금좀벌속(신칭)
MokrzeckiaMokrzecki, 1934: 143; TS: Pteromalus piniHartig, 1838, by monotypy.
Beierina Delucchi, 1958: 271; TS: Pteromalus piniHartig, 1838, original designation; synonym of Mokrzeckia Mokrzecki by Bouček, Z. (1961: 74)
Diagnosis. Fore wing with marginal vein 1.5 to 2.0 × as long as the stigmal vein. Anterior margin of clypeus with two curved lobes, between which there is a narrow incision. Propodeum with deeply arcuately excised hind margin, thin and narrowly upturned; median area reticulate. Each flagellar segment generally with two rows of dense sensilla. Hind tibia with two apical spurs (Bouček, Rasplus, 1991; Tselikh, 2012).
4Mokrzeckia lazoensis Tselikh, 2012 태백고치금좀벌(신 칭) (Figs 1C, 2D)
Mokrzeckia lazoensis Tselikh, 2012: 293, 295-296; holotype, female; TL: Primor'skiy Terr., Russia; TD: ZISP.
Material examined. [NAAS] South Korea: 1 female, GW, Mt. Taebaek, Temp. Yuil-sa, 20.VI-11.VII.1999, D.S. Gu.
Distribution. Russian Far East, South Korea.
Biology. Unknown.
Remarks. This species is similar to M. orientalis Subba Rao, but differs in that head is 1.3-1.4× as broad as mesoscutum, lower margin of clypeus is wider than its upper margin, scape 4.0-5.0 × as long as pedicel, pedicel 1.3-1.5 × as long as broad, metasoma green with golden reflections, distance between the lower margin of clypeus of male 3.1× larger than distance between toruli and median ocellus (Tselikh, 2012).
5Mokrzeckia pini (Hartig, 1838) 고치금좀벌
Pteromalus piniHartig, 1838: 253; lectotype, female; TL: Germany; TD: ZSMM.
Pteromalus halidayanusRatzeburg, 1848: 207; type lost; TL: Germany; synonym of Mokrzeckia pini (Hartig) by Kurdjumov, N.V. (1913: 23); Graham, M.W.R. de V. (1969: 478-479); Tselikh, E.V. (2012: 292)
Mokrzeckia halidayana (Ratzeburg, 1848: 1-24); new combination for Pteromalus halidayanus Ratzeburg by Kurdjumov, N.V. (1913: 23)
Schizonotus paillotiFerrière, Faure, 1925: 229; holotype, female; TL: France; TD: BMNH; synonym of Beierina pini (Hartig) by Delucchi, V. (1958: 271)
Mokrzeckia pini (Hartig); new combination for Pteromalus pini Hartig by Mokrzecki, A. (1934: 143); compared with Mokrzeckia picta Yang, Yao by Yang, Z.Q.; Yao, Y.X.; Cao, L.M. (2015: 47, 230)
Beierina pini (Hartig, 1838); new combination for Pteromalus pini Hartig by Delucchi, V. (1958: 271)
Material examined. Unexamined.
Korean records. South Pyongan (Kamijo, 1983: 302).
Distribution. North Korea, Japan.
Biology. Unknown.
Remarks. This species recorded from North Korea by Kamijo (1983), but unexamined from South Korea.
Genus ParacarotomusAshmead, 1894 꽃등에살이금좀벌 속(신칭)
ParacarotomusAshmead, 1894: 335; Paracaratomus cephalotes Ashmead, by monotypy.
Stirogenium Dzhanokmen, 1984: 152; Stirogenium asiaticum Dzhanokmen, original designation and monotypy; synonym of Paracarotomus Ashmead by Dzhanokmen, K.A., Grissell, E.E. (2003: 536-537)
Diagnosis. Head very large; gena posteriorly with strong lamina. Mesosoma high and compact. Mid coxae in frontal part with horizontal shelf which is anteriorly delimited by crosscarina. Petiole slender and fully as long as the steep propodeum. Gaster high at base, compressed laterally behind middle (Bouček, Rasplus, 1991).
6Paracarotomus cephalotesAshmead, 1894 꽃등에살이금 좀벌(신칭) (Figs 1A, 2E)
Paracarotomus cephalotesAshmead, 1894: 336; holotype, male; TL: Morgantown, United States of America; TD: USNM.
Stirogenium asiaticumDzhanokmen, 1984: 152-153; holotype, female; TL: Tselinograd Obl., Kazakhstan; TD: ZISP; synonym of Paracarotomus cephalotes Ashmead by Dzhanokmen, K.A., Grissell, E.E. (2003: 537)
Material examined. [NAAS] South Korea: 1 Male, JN, Gwangyang-si, Jinwol-myeon, Singu-ri, 26.V.2005, J.D. Yeo.
Distribution. Western and Eastern Europe, Transcaucasus, Russia, Iran, Kazakhstan, South Korea, India, Sri Lanka, South Africa, America, Australia.
Biology. The primary parasitoid of Syrphidae (Diptera) (Noyes, 2016).
Remarks. This species has a head in dorsal view about 2.4× broader than long, gena with strong lamina, propodeum at least 0.5× as long as scutellum, marginal vein 2.4-3.2× longer than stigmal vein and postmarginal vein about 2.0× longer than stigmal vein (Dzhanokmen, 1985).
Subfamily Miscogastrinae Walker, 1833 가시금좀벌아과 (신칭)
Genus Lamprotatus, Westwood, 1833 가시금좀벌속(신칭)
LamprotatusWestwood, 1833: 121; TS: Lamprotatus splendens Westwood, by monotypy.
Skeloceras Delucchi, 1953: 216; TS: Skeloceras seiunctum Delucchi, original designation; subgenus Lamprotatus Westwood by Bouček, Z. (1991: 203)
Octofuniculus Liao, 1982: 358-359, 369; TS: Octofuniculus chagyabensis Liao, original designation and monotypy; synonym of Skeloceras Delucchi by Huang, Da-Wei (1990: 289)
Diagnosis. Frenal area of scutellum bearing coarse longitudinal rugae, shiny, only on sides sometimes with slight reticulation. Forewing with large speculum and basal cell bare; stigma with bilobed lower margin. Body length often 3-4 mm. Flagellum with 6-7 funicular segments and 2-3 segmented clava (Bouček, Rasplus, 1991).
7Lamprotatus cariniferum (Kamijo, 1960) 가시금좀벌
Skeloceras cariniferum Kamijo, 1960: 40; holotype, female; TL: Hokkaido, Japan; TD: EIHU.
Material examined. Unexamined.
Korean records. Ryang-gang (Kamijo, 1983: 305).
Distribution. North Korea, Japan.
Biology. Unknown.
Remarks. This species has been recorded from North Korea by Kamijo (1983), but is unexamined from South Korea.
8Lamprotatus duplicatus (Kamijo, 1960) 광택다리가시금 좀벌 (신칭)(Figs 2F, 3D)
Skeloceras duplicatumKamijo, 1960: 37; holotype, female; TL: Hokkaido, Japan; TD: EIHU.
Material examined. [NAAS] South Korea: 1 female, GW, MT. Taebaek, Temp. Yuil, 20.VI-11.VII.1999, D.S. Gu. [YNU] South Korea: 1 female, CB, Mt. Sobaek, Namchun, 18. VII.1994. W. Y. Chio; 1 female, CN, Buyeo-gun, Gyuammyeon, 14-25.V.2005, J.W. Lee; 1 female, GB, Chilgok-gun, Dongmyeong-myeon, Hakmyeong-ri, Gasansanseong, N36° 02'11.74" E128°34'18.17", 9-22.V.2015, J.W. Lee; 1 female, GB, Cheongdo-gun, Gakbuk-myeon, Mt. Biseul, 24.V. -8.VI. 2015, J.W. Lee; 1 female, GN, Changnyeong-gun, Yueo-myeon, Daedae-ri, Upo Wetland, 3.VII.2015, Tselikh, G.H. Ko.
Distribution. Russian Far East, South Korea, Japan.
Biology. Unknown.
Remarks. This species is similar to L. hikosanus (Kamijo) and L. cariniferum (Kamijo), but differs from both species in having a bare costal cell of hind wing, subrectangular stigma of fore wing, a shorter antennal clava, subquadrate petiole and all femora metallic green (Kamijo, 1960).
9Lamprotatus hikosanus (Kamijo, 1960) 비슬가시금좀벌 (신칭) (Figs 1E, 3A)
Skeloceras hikosanusKamijo, 1960: 38; holotype, female; TL: Kyushu, Japan; TD: EIHU.
Material examined. [NAAS] South Korea: 1 female, GW, Chuncheon-si, Balsan 2-ri, <Host: Fine tree>, 8.X.1998, H.C. Park. [YNU] South Korea: 1 female, CN, Buyeo-gun, Gyuammyeon, 14-25.V.2005, J.W. Lee; 1 female, GB, Cheongdo-gun, Gakbuk-myeon, Mt. Biseul, 10-24.V.2015, J.W. Lee; 3 female; GB, Chilgok-gun, Dongmyeong-myeon, Hakmyeong-ri, Gasansanseong, N36°02'11.74" E128°34'18.17", 9-22.V.2015, J.W. Lee; 1 female; GB, Gyeongsan-si, Daehak-ro 280, Yeungnam Univ., N 35°49'30" E 128°45'39", 4.V.2015, J.W. Lee; 1 female, JN, Jangseong-gun, Bukha-myeon, Sajabong, N 36°24'14.1" E126°52'12.9", 21.VI.2005, K.B. Kim.
Distribution. South Korea, Japan.
Biology. Unknown.
Remarks. This species is very similar to L. cariniferum (Kamijo), but it is very distinct differs from its by the transwerse petiole with sharp anterior margin, flagellum as long as mesosoma, a shorter first claval segment, irregular median carina of propodeum and metallic green fore femora (Kamijo, 1960).
Genus StictomischusThomson, 1876 큰무늬가시금좀벌속 (신칭)
StictomischusThomson, 1876: 278; TS: Stictomischus scaposus Thomson, by subsequent designation of Ashmead W.H. (1904: 278).
Diagnosis. Petiole of gaster reticulate, at most slightly transverse and usually as long as or longer than broad. Stigma of fore wing large or moderately large. Prepectus with vertical carina or, if rarely this indistinct then fore wing with isolated bare area below parastigma (Bouček, Rasplus, 1991).
10Stictomischus momoiiKamijo, 1960 큰무늬가시금좀벌 (신칭) (Figs 1G, 3B, E)
Stictomischus momoiiKamijo, 1960: 32; holotype, female; TL: Hokkaido, Japan; TD: EIHU.
Material examined. [NAAS] South Korea: 1 female, GW, MT. Taebaek, Temp. Yuil, 20.VI-11.VII.1999, D.S. Gu.
Distribution. Russian Far East, South Korea, Japan.
Biology. Unknown.
Remarks.Stictomischus momoii Kamijo is similar to S. japonicus Kamijo, but differs from this species in having an antennal scape less elongated, numerous and irregularly sensillae of funicular segments, basal part of costal cell of fore wing with numerous hairs (Kamijo, 1960).
11Stictomischus scaposus Thomson, 1876 굴파리살이가 시금좀벌(신칭) (Figs 1H, 3C)
Stictomischus scaposus Thomson, 1876: 235; lectotype, female; TL: Smaland, Sweden; TD: LUZN. Fig. 3
Material examined. [YNU] South Korea: 1 female, GB, Mungyeong-si, Gaeun-eup, Wanjang-ri, Mt. sogli, N 36°40'59", E 127°57'07", 21.V.-16.VI.2013, J. K. Choi.
Distribution. Western and Eastern Europe, South Korea.
Biology. Reared in England as a parasite of Phytobia (=Dizygomyza) hilarella (Zett.) (Diptera: Agromyzidae) (Noyes, 2016).
Remarks. This species is similar to S. marginatus Kamijo, but can be distinguished by the shape of the petiole and by the scape, which is much longer than the combined length of the first and second funicle segments (Kamijo, 1960).