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First Records of Three Genera of Metopiinae (Hymenoptera, Ichneumonidae) from South Korea with Description of One New Species

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First Records of Three Genera of Metopiinae (Hymenoptera, Ichneumonidae) from South Korea with Description of One New Species Journal of Asia-Pacific Biodiversity 9 (2016) 461e467 HOSTED BY Contents lists available at ScienceDirect Journal of Asia-Pacific Biodiversity journal homepage: http://www.elsevier.com/locate/japb Original article First records of three genera of Metopiinae (Hymenoptera, Ichneumonidae) from South Korea with description of one new species Jin-Kyung Choi 1, Kyong-In Suh 2, Jong-Wook Lee 1,* 1 Department of Life Sciences, Yeungnam University, Gyeongsan, South Korea 2 Korean Entomological Institute, Korea University, Seoul, South Korea article info abstract Article history: Trieces koreanus Choi & Lee, sp. nov. is described and illustrated in the South Korean fauna. The genera Received 13 April 2016 Periope, Stethoncus, and Trieces are recorded for the first time from South Korea. Description with pho- Received in revised form tographs of the new species and diagnoses for each species are provided. 27 April 2016 Copyright Ó 2016, National Science Museum of Korea (NSMK) and Korea National Arboretum (KNA). Accepted 7 May 2016 Production and hosting by Elsevier. This is an open access article under the CC BY-NC-ND license (http:// Available online 13 May 2016 creativecommons.org/licenses/by-nc-nd/4.0/). Keywords: Korea Periope Stethoncus taxonomy Trieces Introduction In this study, we report a new species and four newly recorded species from South Korea. Metopiinae Förster, 1869 is a moderately large ichneumonid group comprising more than 830 described species worldwide. Materials and methods According to Baltazar (1964), the group consists of koinobiont endoparasitoids in pyraloids and tortricoids of lepidopterous Materials used in this study were collected by sweeping and larvae, which emerge from the pupae of their hosts. The genus Malaise trapping, after which they were deposited in the animal Trieces Townes, 1946 comprises 69 species (Tolkanitz 2010; Yu et al systematic laboratory of Yeungnam University (YNU, Gyeongsan, 2012; Zhang et al 2016), including the newly described species, South Korea). Morphological terminology follows mostly that of Trieces etuokensis Sheng, 2016, from China by Zhang et al (2016). Gauld et al (2002). Specimens were examined using an AxioCam Also, the genera Periope Haliday, 1838 and Stethoncus Townes & MRc5 camera attached to a stereomicroscope (Zeiss SteREO Dis- Townes, 1959 comprise only 5 species worldwide (Yu et al 2012). covery. V20; Carl Zeiss, Göttingen, Germany), processed using The genera Periope, Stethoncus, and Trieces have not been studied AxioVision SE64 software (Carl Zeiss), and optimized using a Delta yet in South Korea. Three genera of South Korean Metopiinae are imaging system (i-solution; IMT i-Solution Inc., Vancouver, Can- discussed here: Periope with one species, Stethoncus with one ada). Distributional data mainly follow that of Yu et al (2012). species, and Trieces with three species (one of them new to science). Species description and diagnoses are based on South Korean specimens. Abbreviations are as follows: GN, Gyeongsangnam-do; GG, Gyeonggi-do. AEI, American Entomological Institute, Gainesville, FL, USA (H. Townes collection); HU, Hokkaido University, Faculty of * Corresponding author. Tel.: þ82 53 810 2376. E-mail address: [email protected] (J.-W. Lee). Agriculture, Entomological Institute, Sapporo, Japan; MZ, Musée Peer review under responsibility of National Science Museum of Korea (NSMK) and Zoologique, Place Riponne, Switzerland; TMA, Termeszettudoma- Korea National Arboretum (KNA). nyi Muzeum Allattara, Budapest, Hungary. http://dx.doi.org/10.1016/j.japb.2016.05.001 pISSN2287-884X eISSN2287-9544/Copyright Ó 2016, National Science Museum of Korea (NSMK) and Korea National Arboretum (KNA). Production and hosting by Elsevier. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). 462 JK Choi et al. / Journal of Asia-Pacific Biodiversity 9 (2016) 461e467 Systematic accounts and mid legs, hind trochanter and tibia except apically, hind tarsi and tegula yellow (Figures 1A and 1B). Antenna except scape and Family Ichneumonidae Latreille, 1802 first flagellomere brown. Subfamily Metopiinae Förster, 1869 Face rugosely punctate. Malar space granulate, shorter than Genus Periope Haliday, 1838 basal width of mandible. Projection of upper face recurved. Vertex Periope Haliday, 1838:112e121. Type species: Periope auscultator densely punctate. Antenna with at least 21 flagellomeres. Pronotum Haliday. polished, with hairs. Scutellum convex. Epicnemial carina incom- Monoplectron Holmgren, 1856:1e104. Type species: Monoplectron plete; mesopleuron densely punctate; speculum shiny (Figure 1C). zygaenator Holmgren. Metapleuron slightly punctate. Propodeum with parallel median Oligoplectron Förster, 1869:135e221. Type species: Periope longitudinal carinae (Figure 1D). Fore wing with stalked areolet auscultator Haliday. New name for primary homonym. (Figure 1E). Hind wing with nine distal hamuli. Tergites coarsely Monoplectrochus Heinrich, 1949:101e127. Type species: punctate; first tergite with lateral carinae at anterior half of first Monoplectrochus hoerhammeri Heinrich tergite in lateral view. Material examined. South Korea: [GG] 1_, Bokwangsa, 1 v 1984 Periope hoerhammeri (Heinrich, 1949) (JW Lee). Monoplectrochus hoerhammeri Heinrich, 1949:101e127. Type: Distribution. South Korea (new record), Japan, Germany, male; Type depository: AEI. Lithuania, Poland, Russia (Primor’ye Kray), Ukraine. Diagnosis. Color. Black. Labrum, palpi, projection of upper face, fore and mid legs except basal coxae, spots on dorsal femora of fore Genus Stethoncus Townes & Townes, 1959 Figure 1. Periope hoerhammeri. A, Head, frontal view; B, Habitus, lateral view; C, Head and mesosoma, lateral view; D, Propodeum, dorsal view; E, Fore wing. <scale bars: 0.2 mm (A, D); 0.5 mm (C, E); 1 mm (B)> JK Choi et al. / Journal of Asia-Pacific Biodiversity 9 (2016) 461e467 463 Stethoncus Townes & Townes, 1959: 167. Type species: Stethoncus elongate and polished, without lateral carina. Propodeum well- arcticus Townes & Townes. developed carinae (Figure 2E); propodeal spiracle round, reach pleural carina. Metapleuron glabrous. Fore wing without areolet. Stethoncus sulcator Aubert, 1963 Hind wing with five distal hamuli. Legs stout. Tergites shiny and Stethoncus sulcator Aubert, 1963:82e86. Type: male; Type impunctate; first tergite with median longitudinal carinae. depository: MZ. Material examined. South Korea: [GN] 1_, Sancheong-gun, Diagnosis. Color. Black. Palpi, mandible, antenna, tegula and legs Sicheon-myeon, Naedae-ri Jirisan National Park, Saeseoksanjang, yellowish brown; hind coxa darkened (Figures 2A and 2B). 12 Â 2001 (JW Lee). Face coarsely and sparsely punctate; projection of upper face 90 Distribution. South Korea (new record), Austria, Bulgaria, France, recurved. Frons convex, sparsely punctate (Figure 2B). Malar space Germany, Japan, Poland, Russia (Buryatskaya Respublika, Krasnodar longer than basal width of mandible. Occipital carina indistinct; Kray), Switzerland, Ukraine. occiput sunken. Pronotum sunken and glabrous except upper area (Figure 2C). Mesopleuron swollen, shiny, and sparsely punctate. Genus Trieces Townes, 1946 Mesoscutum sparsely punctate, with notauli (Figure 2D). Scutellum Trieces Townes, 1946: 60. Type species: Exochus texanus Cresson. Figure 2. Stethoncus sulcator. A, Habitus, lateral view; B, Head, frontal view; C, Head and mesosoma, lateral view; D, Head and mesoscutum, dorsal view; E, Scutellum and pro- podeum, dorsal view. <scale bars: 0.2 mm (B, C, D, E); 1 mm (A)> 464 JK Choi et al. / Journal of Asia-Pacific Biodiversity 9 (2016) 461e467 Key to species of South Korean Trieces Pronotum glabrous, upper corner of pronotum sparsely punctate (Figure 3C). Mesopleuron sparsely punctate anteriorly; speculum 1. Metapleuron with vertical slit-shaped depression posteriorly. area glabrous and flat, without pit (Figure 3C). Mesoscutum convex, Occipital carina present..................2 without notaulus (Figure 3D). Metapleuron shiny; lower and pos- - Metapleuron without vertical slit-shaped depression posteri- terior area of metapleuron with transverse wrinkles; without ver- orly. Occipital carina absent.......T. bellulus Kusigemati tical slit-shaped depression posteriorly. Scutellum elongate, with 2. Head not widened posteriorly behind eyes in dorsal view. lateral carinae. Propodeum rugosely punctate. Fore wing without Temple not convex, shorter than transverse eye diameter in areolet (Figure 3F). Hind wing with six distal hamuli. Legs stout. First lateral view. Face yellowish brown (Figure 4B). Antenna with to third tergites rugosely punctate; first to basal half of third tergites less than 24 flagellomeres.......T. homonae Kusigemati with lateral carinae in lateral view. Second to half of third tergites - Head widened posteriorly behind eyes in dorsal view. Temple with median longitudinal carinae distinctly in dorsal view convex, longer than transverse eye diameter in lateral view. (Figure 3E). Fourth to seventh tergites finely punctate. Face black with yellow projection (Figure 4B). Antenna with 33 Material examined. South Korea: 1\, Daegu-si, Dalseo-gu, flagellomeres.........T. koreanus Choi & Lee sp. nov. Daegok-dong, Daegu Arboretum, alt. 88 m, 22e23 viii 2012 (SG Kang). Trieces bellulus Kusigemati, 1984 Distribution. South Korea (new record), Mongolia, Russia (Chita Trieces bellulus Kusigemati, 1984: 245e263. Type: female; Type Oblast, Kamchatka Oblast, Primor’ye Kray, Tuvinskaya Respublika). depository: TMA. Diagnosis. Color. Black.
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