• Title/Summary/Keyword: Parasitoids

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Taxonomic Study of the Genus Scolobates (Hymenoptera: Ichneumonidae: Ctenopelmatinae) from Korea

  • Lee, Jong-Wook;Suh, Kyong-In;Choi, Jin-Kyung;Kim, Chul-Heun
    • Animal Systematics, Evolution and Diversity
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    • v.22 no.2
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    • pp.179-184
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    • 2006
  • Korean species of the genus Scolobates are reviewed. Three species, Scolobates nigriabdominalis (Uchida, 1952), S. ruficeps (Uchida, 1932), and S. testaceus (Morley, 1913) are newly included in Korean fauna. A revised key to the species, redescriptions and photographs of all Korean species are provided.

New Records of Five Species of Triclistus (Hymenoptera, Ichneumonidae, Metopiinae) from South Korea

  • Jin-Kyung Choi;Jong-Wook Lee
    • Animal Systematics, Evolution and Diversity
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    • v.39 no.3
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    • pp.77-85
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    • 2023
  • Five species of South Korean species of the genus Triclistus Förster, 1869 are newly discovered; Triclistus crassus Townes & Townes, 1959, T. mimerastriae Kusigemati, 1971, T. nigrifemoralis Kusigemati, 1971, T. planus Momoi & Kusigemati, 1970, and T. uchidai Kusigemati, 1971. We report those five species of Triclistus herein. Diagnoses, photographs of newly recorded species of this genus, and key to South Korean Triclistus are provided.

Taxonomic study of the genus Brachynervus Uchida (Hymenoptera: Ichneumonidae: Anomaloninae) from South Korea

  • Jin-Kyung Choi
    • Journal of Species Research
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    • v.13 no.2
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    • pp.131-135
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    • 2024
  • Two unrecorded species, Brachynervus beijingensis and B. confusus are described from South Korea for the first time. A taxonomic study of the South Korean Brachynervus was initiated by Uchida (1955). Until now only one species, B. tsunekii, has been recorded from South Korea. In the study, we provide the diagnoses and photos of two unrecorded species of Brachynervus.

First Record on the Exotic Parasitoids Anisopteromalus apiovorus Rasplus (Hymenoptera: Pteromalidae) in Korea (외래기생봉 권연벌레살이금좀벌(국명신칭), Anisopteromalus apiovorus Rasplus (Hymenoptera: Pteromalidae)의 한국 내 신 분포 기록)

  • Cho, Bong-Kyun;Kim, Il-Kwon;Yoon, Chun-Sik;Kim, Hyoung-Gon;Cheong, Seon-Woo
    • Journal of Environmental Science International
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    • v.23 no.8
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    • pp.1463-1468
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    • 2014
  • An exotic parasitic wasp Anisopteromalus apiovorus of Pteromalidae was newly recorded in Korea. Specimens of this species have been collected in Gimhae of Korea since 2012. External morphology of this species was described in detail and diagnostic differences of this species from the related species and the host insect were also given. The funicle segments of female antennae are 1.2 to 1.5 times longer than those of Anisopteromalus calandrae, an sister species. Body color is gold-glossy black and with dense creamy-white hairs on the surface. This exotic species has been originated from the African continent including Democratic Republic of Congo and Cote d'Ivoire, and then intruded into other countries, for instance, Korea. This is the first distribution record of this species except the country of origin after original description as a new species. Although little is known about the life history or ecology of this species, we found that a new host of this small parasitic wasp is Lasioderma serricorne of coleoptera through present study. And this species possibly be a new agent of biological control for economic pests. It was presumed that the invasion of Anisopteromalus apiovorus into Korea was prior to November of 2012.

Life History, Seasonal Occurrence and Natural Enemies of Caloptilia theivora (Lepidoptera: Gracillariidae) at Tea Tree Plantation (동백가는나방(Caloptilia theivora)의 생활사, 발생소장 및 천적의 종류)

  • 이승찬;김상수;김도익
    • Korean journal of applied entomology
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    • v.34 no.3
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    • pp.229-233
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    • 1995
  • The life history, seasonal occurrence of larval population and natural enemies of Tea leaf roller (Caloptilia theivora (Walshingham) were investigated in field-age. C. theivora had 6 generations a year. The developmental periods from egg to adult emergence were 32.1~38.6 days in spring and fall, and 24.8~32.7 days in summer. The average longevities of adults were 8.4~14.5 days in spring and fall, and 6.3~8.6 days in summer. The average number of eggs laid by a female were 55~71 throughout the season. Larval population density of C. theivora showed 3~4 peaks from middle may in 1992 and 1993. However, population density of 194 was pretty low in early season and exhibited a peak in late September-early October. C. theivora overwintered in pupal stage on the leaves. Four hymenopterous parasitoids of C. theivora larvae were identified ; they are Stenomesius japonicus (Ashmead), Sympiesis ringoniellae Kamijo, Elasmus sp., and S. dolichogaster Ashmead which is dominant.

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Natural Enemies of Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae) and Their Seasonal Prevalence of Adult Emergence in Korea (밤나무혹벌의 천적종류와 발생소장)

  • 김종국
    • Korean journal of applied entomology
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    • v.32 no.3
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    • pp.285-290
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    • 1993
  • This study was conducted to mvestigate the natural enemies of chestnut gall wasp, Dryocosmus kuriphilus Yasumatsu and their seasonal prevalence of adult emergence. The natural enemies Identified were as follows: Torymus sinensis, Torymus geranii, Eutytoma Brunniventris, Eurytoma s Setlgera, Megastigmus nipponicus, Megastigmus maculipennis, Ormyrus flavrtrbwlis, Ormyrus punctiger, Eupelmus urozonus, Euplmus sp., Sycophila vanegata, and Diptem sp. Among these natural enemies of the chestnut gall wasp, Torymus sinensis, Eurytoma setigem, and Eupelmus sp. were newly recorded this time In Korea. The seasonal prevalence of parasItic wasps have been investigated in Kyonggi ProvInce. Torymus sinensis which seems to be the most dominant parasitoid emerged from withered galls formed in the previous year April to eary May. The four parasitoids such as Torymus geranii, Sycophila variegata, Eupelmus urozonus and Eupelmus sp. emerged from withered previous year galls in April to May and also from current year galls in June to August. The other parasitoids emerged from only current year galls in June to August.

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Egg Parasitism of Green Rice Leafhopper, Nephotettix cincticeps Uhler by Gonatocerus sp. and Paracentrobia andoi in Southern Rice Cultural Areas (남부지방에 있어서 끝동매미충 난기생봉의 종류 및 기생율에 관한 조사연구)

  • Chang Y.D.
    • Korean journal of applied entomology
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    • v.19 no.2 s.43
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    • pp.109-112
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    • 1980
  • This study was carried out to investigate the distribution of egg parasitoids from green rice leafhopper, Nephotettix cincticeps Uhler, from the middle of August through the early September in southern rice cultural areas. The results were obtained as follow. 1. Four species of egg parasitoids, Gonatocerus sp. A and B, Paracentrobia andoi and Anagrus sp. are newly recorded from the eggs of green rice leafhopper. 2. Egg parasitism rates of Gonatocerus sp. were varied from $41.0\~73.9\%$ on an egg mass basis and from $29.7\~49.0\%$ on basis of egg. Percent parasitism rates by Paracentrobia andoi were $0\~9.7\%$ on an egg mass basis and from $2.1\~12.6\%$ on basis of egg. Gonatocerus sp. was dominant egg parasitoid in the parasitism rate than Paracentrobia andoi.

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Egg Parasitism of Scirpophaga incertulas Walker (Lepidoptera: Pyralidae) by Hymenopterous Parasitoids in IRRI Rice Fields (국제미작연구소포장(國際米作硏究所圃場)에 있어서 기주봉(寄生蜂)에 의한 Scirpophaga incertulas의 난기생율(卵寄生率)에 대하여)

  • KIM, H.S.;Heinrichs, E.A.;Mylvaganam, P.
    • Korean journal of applied entomology
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    • v.25 no.1 s.66
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    • pp.37-40
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    • 1986
  • We surveyed the IRRI farm to determine the extent of parasitization of yellow stemborer egg masses. The egg masses were randomly collected at weekly intervals from July to October 1984 from rice fields, 15-20 days after transplanting, and brought to the laboratory for collection of emerging parasites. Three species of hymenopterous parasitoids-Tetrasticus schoenobii, Telenomus rowani, and Trichogramma japonicum-were found from 700 egg masses. We introduced a method to calculate percent parasitism as based on parasite biology and behaviour. Among the three species, the combination of T. rowani and T. japonicum was the highest multiparasitization of yellow stem borer egg masses, and T. rowani, a solitary parasite had the highest number based on immature and adult stages counted. However, T. schoenobii may be the most efficient parasite because two to four host eggs are needed to complete the larval period, and it took $10{\sim}14$ days for one generation.

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