Ichneumonidae (Hymenoptera) are commonly known as “parasitoids” which are clearly the most important resources of biological control agents. Also, they as parasitoids provide the substantial economic and environmental benefits to natural ecosystem and human agricultural production (LaSalle and Gauld, 1993). This family is divided into 51 subfamilies including four fossil groups, with more than 24,281 species classified into 1,579 genera worldwide (Yu et al., 2012). The family is cosmopolitan, with 603 species known from South Korea, 1,527 species from Japan, 2,039 species from China, and 3,418 species from Russia (Yu et al., 2012).
In this study, we report new host records of four ichneumon species from South Korea. Psilomastax pyramidalis Tischbein (Hymenoptera: Ichneumonidae) emerged from the pupae of Apatura metis Freyer (Lepidoptera: Nymphalidae). A. iris (Lepidoptera: Nymphalidae) and Hestina assimilis Linnaeus (Lepidoptera: Nymphalidae) have been recorded as hosts of P. pyramidalis (Yu et al., 2012). Podoschistus scutellaris (Desvignes) (Hymenoptera: Ichneumonidae) was reared from the pupae of Allotraeus sphaerioninus Bates (Coleoptera: Cerambycidae), and the wasp species is also known to be a parasitoid of Lampra mirifica (Mulsant) (Coleoptera: Buprestidae), Pissodes harcyniae (Herbst) (Coleoptera: Curculionidae), Saperda carcharias (Linnaeus) (Coleoptera: Cerambycidae), and Tetropium castaneum (Linnaeus) (Coleoptera: Cerambycidae) (Yu et al., 2012). Apechthis rufata (Gmelin) (Hymenoptera: Ichneumonidae) and Pimpla disparis Viereck (Hymenoptera: Ichneumonidae) parasitized pupae of Ivela auripes (Butler) (Lepidoptera: Lymantriidae).
Diagnoses, illustrations, host record, and distribution information of each species are provided. We also provide a list of ichneumon parasitoids on pupae of Ivela auripes (Butler) (Lepidoptera: Lymantriidae) from Korea (Table 4).
Materials and Methods
The specimens are deposited at the Animal Systematic Laboratory of Yeungnam University (YNU), National Institute of Biological Resources (NIBR), and Korea National Arboretum (KNA). The morphological terminology is mostly that of Gupta and Maheshwary (1977). Distribution data and host records are taken from Yu et al. (2012). Specimens were examined using an AxioCam MRc5 camera attached to a stereo microscope (Zeiss SteREO Discovery. V20; Carl Zeiss, Göttingen, Germany), processed using AxioVision SE64 software (Carl Zeiss), and optimized with a Delta imaging system (i-solution, IMT i-Solution Inc. Vancouver, Canada).
The following abbreviations are used in this paper: HU, Hokkaido University, Faculty of Agriculture, Entomological Institute, Sapporo, Japan.
KNA, Korea National Arboretum, Pocheon, Korea. KNPRI, Korea National Park Research Institute, Wonju, Korea NHM, The Natural History Museum, Department of Entomology, London, England, United Kingdom.
NIBR, National Institute of Biological Resources, Incheon, Korea.
NR, Naturhistoriska Riksmuseet, Sektionen för Entomologi, Stockholm, Sweden.
USNM, U.S. National Museum of Natural History, Smithsonian Institute, Washington, D.C., U.S.A.
YNU, Animal Systematic Laboratory of the Yeungnam University, Gyeongsan-si, South Korea ZSM, Zoologisches Staatsammlung, Münchhausenstrasse, München, Germany.
CB, Chungcheongbuk-do; GW, Gangwon-do; GG, Gyeonggido; GN, Gyeongsangnam-do; TD, Type depository.
Results and Discussion
Systematic accounts: First record on host of Ichneumonidae
1. Psilomastax pyramidalisTischbein, 1868 피라미맵시벌
(Figs. 1A-C) Psilomastax pyramidalisTischbein, 1868: 255. Type: female; TD: lost.
Psilomastax pictusKriechbaumer 1882: 176. Lectotype: female; TD: ZSM.
Psilomastax pyramidalis: Kim, 1970: 412; Lee et al., 2012: 65. Diagnosis. Head yellow with black marks at clypeus, malar space, frons, central face. Vertex black. Antenna black with median white band, 36 flagellomeres. Epomia distinct. Pronotum yellow with black spot medially and sparsely punctate. Mesoscutum without notaulus. Mesoscutellum yellow, with projection; postscutellum flat and yellow. Mesopleuron and legs yellow with black spots. Propodeum wrinkle with strong median longitudinal carina. Fore wing with areolet. Nervellus intercepted at 0.1 lower part; discoidella present. Metasoma densely punctate and longitudinal striate, with strong thyridium.
Material examined. 1 male, Korea, GW, Pyeongchang-gun, Yongpyeong-myeon, Imok-ri, 8.vi.2014, H.Y. Lee (leg) (ex. from pupa of Apatura metis) (NIBR).
Host:Apatura metis Freyer (Lepidoptera: Nymphalidae) (new record from Korea); Apatura iris (Lepidoptera: Nymphalidae), Hestina assimilis (Lepidoptera: Nymphalidae) (Yu et al., 2012).
Distribution: Korea, Austria, China (Guangdong, Heilongjiang, Hungary, Japan, Netherlands, Poland, Switzerland, United Kingdom.
Region: Eastern Palaearctic, Oriental, Western Palaearctic.
2. Podoschistus scutellaris (Desvignes, 1856) 줄동양납작맵 시벌(Figs. 1D-F)
Xorides scutellarisDesvignes 1856: 1-120. Lectotype: female; TD: NHM.
Xorides wahlbergiHolmgren, 1860: 65. Type: male; TD: NR.
Xorides erosusTschek, 1869: 269-280. Type: unknown; TD: unknown.
Podoschistus scutellaris: Suh et al., 2013: 137.
Diagnosis. Face and clypeus small, with scattered punctures.
Malar space very short. Upper half of temple coarsely denticulate. Antenna black with median yellow band, 36 flagellomeres. Epomia distinct. Pronotum broadly concaved at the center and matt. Mesoscutum strongly trilobite and coarsely punctate. Notauli strongly convergent and touching posteriorly. Mesoscutellum and postscutellum yellow. Propodeum wrinkle. Fore and mid legs yellowish brown. Hind coxa black with yellow spot at inner part; trochanter yellow, trochantellus black; femur and tibia brown to dark brown apically. Fore wing without areolet. Nervellus intercepted 1/4 of upper part; discoidella present. Metasoma densely and finely punctate. Tergites black with apical rim of each tergites yellow. Ovipositor straight and as long as metasoma.
Material examined. 1 female, Korea, GG, Gapyeong-gun, Cheongpyeong-myeon, 3.v.2013, E.Y. Kang (leg) (ex. from Allotraeus sphaerioninus) (NIBR).
Host:Allotraeus sphaerioninus Bates (Coleoptera: Cerambycidae) (new record from Korea); Lampra mirifica (Coleoptera: Buprestidae); Saperda carcharias (Coleoptera: Cerambycidae), Tetropium castaneum (Coleoptera: Cerambycidae); Pissodes harcyniae (Coleoptera: Curculionidae) (Yu et al., 2012).
Distribution: Korea, Austria, Belgium, Bulgaria, Czech Republic, Slovakia, France, Germany, Hungary, India, Poland, Romania, Russia (Bryansk, Sankt Petersburg), Sweden, United Kingdom.
Region: Eastern Palaearctic, Oriental, Western Palaearctic.
3. Pimpla disparisViereck, 1911 나방살이납작맵시벌 (Fig. 2A)
Pimpla disparisViereck, 1911: 475-480. Type: female; TD: USNM.
Pimpla porthetriae Viereck, 1911: 475-480. Type: male; TD: USNM.
Diagnosis. Body black. Face convex, clypeus flat, separated from face by carina. Antenna black, with 30 flagellomeres. Epomia distinct. Pronotum coarsely punctate with central stripes. Mesoscutum with notaulus. Mesoscutellum and post scutellum convex and black. Propodeum rugosely and coarsely punctate. Fore and mid legs reddish brown except coxa and trochanter black. Hind leg black except femur reddish brown anterior part. Fore wing with areolet. Nervellus intercepted at 2/3 of the upper part; discoidella present. 1-2 tergites coarsely punctate, 3-6 tergites finely punctate. Ovipositor straight and dark reddish brown.
Material examined. 2 females, 2males, Korea, GN, Gyejae-si, Ilun-myeon, Gujola-ri, 11.v.2014, H.Y. Oh (leg) (NIBR); 2 females, 2 males, GG, Pocheon-si, Korea National Arboretum, 26.v.2014, M.H. Kim (leg) (9-10.vi.2014, ex. from a psupa of Ivela auripes) (KNA); 1 female, ditto, 19.v.2014, Y.M. Shin, I.J. Choi, J.W. Nam (leg) (12.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 female, ditto, 21.v.2014, Y.M. Shin, S.Y. Park (leg) (9-10.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 female, 1 male, ditto, 23.v.2014, Y.M. Shin, I.K. Kim (leg) (17.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 female, ditto, 26.v.2014, M.H. Kim (leg) (13-15.vi. 2014, ex. from a pupa of Ivela auripes) (KNA); 1 female, ditto, 26.v.2014, M.H. Kim (leg) (16.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 4 females, 10 males, ditto, 23.v.2014, Y.M. Shin, I.K. Kim (leg) (4-8.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 2 males, ditto, 26.v.2014, M.H. Kim (leg) (17.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 male, ditto, 26.v.2014, M.H. Kim (leg) (20-25.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 female, 3 males, ditto, 26.v.2014, M.H. Kim (leg) (4-8.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 male, ditto, 21.v.2014, Y.M. Shin, S.Y. Park (leg) (9-10.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 male, ditto, 23.v.2014, Y.M. Shin, I.K. Kim (leg) (20-25.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 female, ditto, 23.v.2014, Y.M. Shin, I.K. Kim (leg) (12.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 male, ditto, 26.v.2014, M.H. Kim (leg) (10.vi.2014, ex. from a pupa of Ivela auripes) (KNA).
Host: Host records of P. disparis Viereck are summarized in Table 1.
Distribution: Korea, Canada, China (Anhui, Beijing, Fujian, Gansu, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Menggu, Ningxia, Shaanxi, Shandong, Shanghai, Shanxi, Sichuan, Tianjin, Xizang, Yunnan, Zhejiang), India, Japan, Mongolia, Russia (Amur, Buryatskaya Respublika, Irkutsk, Khabarovsk Kray, Primor'ye Kray, Sakhalin), U.S.A..
Region: Eastern Palaearctic, Nearctic, Oriental.
4. Apechthis rufata (Gmelin, 1790) 그멜린납작맵시벌(Figs 2B-C)
Ichneumon rufataGmelin, 1790: 2674-2722. Type: female; TD: lost.
Pimpla flavonotataHolmgren, 1860: 1-76. Type: unknown; TD: unknown.
Pimpla rufithoraxStrobl, 1902: 3-48. Type: female; TD: unknown.
Apechthis geometriaeUchida, 1928: 1-115. Type: female; TD: HU.
Apechthis rufata: Choi et al., 2015: 17.
Diagnosis. Body black. Face convex, with yellow line at inner margins of eyes. Clypeus flat, separated from face by groove. Antenna yellow in ventral view and dark brown in dorsal view, with 25 flagellomeres. Epomia distinct. Pronotum glabrous centrally. Mesoscutum with yellow marks and notaulus. Mesoscutellum and postscutellum convex, yellow. Propodeum coarsely punctate with vestigial carinae. Fore and mid legs yellowish brown. Hind coxa and femur reddish brown; hind tibia black with yellow band; apical area of 1-3 tarsomeres and 4-5 tarsomeres blackish brown. Fore wing with areolet. Nervellus intercepted 2/3 of upper part; discoidella present. Metasoma coarsely punctate, with strong thyridium. Ovipositor downcurved and dark reddish brown.
Material examined. 1 female, Korea, GG, Pocheon-si, Korea National Arboretum, 26.v.2014, M.H. Kim (leg) (9-10. vi.2014, ex. from a pupa of Ivela auripes) (KNA).
Host: Host records of A. rufata (Gmelin) are summarized in Table 2.
Distribution: Korea, Armenia, Austria, Azerbaijan, Belarus, Belgium, Bulgaria, China (Gansu, Heilongjiang, Henan, Hubei, Hunan, Zhejiang), Croatia, Czech Republic, Denmark, Estonia, Finland, France, Georgia, Germany, Greece, Hungary, Ireland, Italy, Japan, Kazakhstan, Latvia, Lithuania, Luxembourg, Macedonia, Moldova, Netherlands, Norway, Pakistan, Poland, Romania, Russia (Astrakhanskaya, Chita, Irkutsk, Kamchatka, Khabarovsk Kray, Kirov, Krasnodar Kray, Kursk, Lipetsk, Moscow, Novosibirsk, Primor'ye Kray, Ryazan, Sakhalin, Sankt Petersburg, Tomsk, Voronezhskaya, Yaroslavl), Serbia and Montenegro, Slovakia, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom, Yugoslavia.
Region: Eastern Palaearctic, Oriental, Western Palaearctic.
5. Cobunus pallidiolus (Matsumura, 1912) 담색맵시벌(Fig. 3A)
Ichneumon pallidiolusMatsumura, 1912: 235. Type: female; TD: HU.
Cobunus pallidiolus: Kim, 1955: 434; 1963: 78; 1970: 394; Lee et al., 2012: 40.
Diagnosis. Body reddish yellow. Face convex and clypeus flat. Antenna blackish brown in ventral view and reddish brown in dorsal view, with 41-42 flagellomeres. Epomia distinct.
Mesoscutum with weak notaulus. Mesoscutellum convex. Propodeum coarsely punctate with areola. Fore wing with areolet. Nervellus intercepted 1/3 of lower part; discoidella present. Metasoma densely punctate, with strong thyridium. 5-7 tergites black.
Material examined. 2 males, 2 females, Korea, GG, Pocheonsi, Korea National Arboretum, 26.v.2014, M.H. Kim (leg) (9-10.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 female, ditto, (4-8.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 male, ditto, (20-25.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 male, 1 female, CB, Danyang-gun, Yeongchun-myeon, Namcheon-ri, Sobaeksan National Park, Namcheon valley, 23.v.2014, Y.J. Kim (leg) (6.vi.2014, ex. from a pupa of Ivela auripes) (YNU).
Host:Ivela auripes (Butler) (Lepidoptera: Lymantriidae).
Distribution: Korea, India, Japan.
Region: Eastern Palaearctic, Oriental.
Remark: Ivela auripes has been recorded as host of this species from several literatures (Uchida, 1930; Minamikawa, 1969; Kusigemati, 1987), and we confirmed this based on the results of the present study.)
6. Apechthis capulifera (Kriechbaumer, 1887) 황다리납작 맵시벌 (Fig. 3B)
Pimpla capuliferaKriechbaumer, 1887: 113-121. Type: female; TD: ZSM.
Pimpla japonicaDalla Torre, 1902: 545-1141. Type: unknown; TD: unknown.
Apechtis orbitalisAshmead, 1906: 169-201. Type: female; TD: USNM.
Apechtis sapporoensisAshmead, 1906: 169-201. Type: female; TD: USNM.
>Apechthis japonica nigriorbitalisUchida, 1928: 1-115. Lectotype: female; TD: HU.
Apechthis capulifera: Choi et al., 2015: 16.
Diagnosis. Body black. Face convex, with yellow line at inner margins of eyes. Clypeus flat, separated from face by groove. Antenna yellow at outer part and dark brown at inner part, with 27 flagellomeres. Epomia distinct. Pronotum glabrous centrally. Mesoscutum with weak notaulus. Mesoscutellum and postscutellum convex, yellow. Propodeum coarsely punctate except median part glabrous. Fore and mid legs yellowish brown except mid coxa black basally. Hind leg black except femur dark reddish brown, hind tibia with yellow band. Fore wing with areolet. Nervellus intercepted at 2/3 of upper part; discoidella present. Metasoma densely punctate, with strong thyridium. Ovipositor downcurved and dark reddish brown.
Material examined. 4 males, GG, Pocheon-si, Korea National Arboretum, 21.v.2014, Y.M. Shin, S.Y. Park (leg) (9-10.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 female, 1 male, ditto, 26.v.2014, M.H. Kim (leg) (9-10.vi.2014, ex. from a pupa of Ivela auripes) (KNA); 1 female, CB, Danyang-gun, Yeongchunmyeon, Namcheon-ri, Sobaeksan National Park, Namcheon valley, 23.v.2014, Y.J. Kim (leg) (6.vi.2014, ex. from a pupa of Ivela auripes) (YNU).
Host: Host records of >A. capulifera (Kriechbaumer) are summarized in Table 3.
Distribution: Korea, Austria, Azerbaijan, Belarus, Bulgaria, China (Gansu, Hebei, Heilongjiang, Henan, Hunan, Nei Menggu, -Shanxi, Sichuan), Taiwan, Czech Republic, Slovakia, Germany, Japan, Latvia, Norway, Poland, Romania, Russia (Amur, Astrakhanskaya, Buryatskaya Respublika, Irkutsk, Kaliningrad, Khabarovsk Kray, Krasnoyarsk Kray, Nizhegorodskaya, Novosibirsk, Primor'ye Kray, Sakhalin, Tambov, Yevreyskaya), Sweden, Switzerland, Ukraine.
Region: Eastern Palaearctic, Oriental, Western Palaearctic. Remark: Ivela auripes has been recorded as host of this species (Minamikawa, 1969), and we confirmed this based on the results of the present study.