Annotated catalog, biological notes and diagnoses of the flower bugs (Heteroptera: Anthocoridae sensu lato) in the Korean Peninsula

Jung, Sunghoon,Yamada, Kazutaka,Lee, Seunghwan Korean Society of Applied Entomology 2013 Journal of Asia-Pacific Entomology Vol.20 No.1

The flower bugs or minute pirate bugs, Anthocoridae sensu lato, are represented by 12 genera and 24 species in the Korean Peninsula. The present catalog includes three newly recorded species to the fauna: Anthocoris confusus Reuter, Bilia japonica Carayon et Miyamoto, and Montandoniola pictipennis (Esaki). Distributional data and bibliographical references of each taxon are included. Biological notes (habitats, prey types, etc.) and diagnoses based on the local materials of the Korean Peninsula are also presented for the field of applied entomology.

Development and mating behavior of Osmia cornifrons (Hymenoptera: Megachilidae) in the constant temperature

Lee, K.Y.,Yoon, H.J.,Lee, K.S.,Jin, B.R. Korean Society of Applied Entomology 2016 Journal of Asia-Pacific Entomology Vol.19 No.2

<P>Osmia cornifrons is a cavity-nesting solitary species used as an apple pollinator in Korea. To elucidate the developmental characteristics of O. cornifrons, we investigated its development from the egg to adulthood, including a dormant prepupal phase and mating through indoor rearing (25 degrees C, 65% R.H.). The egg durations of the female and male bees were 3.6 +/- 0.8 days and 3.1 +/- 1.3 days, respectively. During larval development, the head widths of the 1st to 5th instars ranged from 0.7 +/- 0.1 mm to 1.3 +/- 0.1 mm. The peak of the growth in head width was the 2nd instar. The larval lengths ranged from 3.7 +/- 0.6 mm to 13.6 +/- 1.3 mm. The peak of growth was the 4th instar. The larval weights ranged from 4.5 +/- 1.2 mg to 78.3 +/- 16.1 mg. The peak of growth was the 3rd instars. The total larval durations of from the 1st to 5th instars for the females and males were 14.0 +/- 6.0 days and 13.2 +/- 5.8 days, respectively. The spinning durations of the females and males were 22 0.7 days and 2.3 +/- 0.8 days, the prepupation durations were 55.5 +/- 5.9 days and 55.8 +/- 2.9 days, and the pupation durations were 26.4 +/- 2.1 days and 25.3 +/- 2.3 days, respectively. The average longevity of the female adults and male adults was 21.8 +/- 8.7 days and 24.4 +/- 12.4 days, respectively. The total duration of from the egg to an adult bee of the O. cornifrons females and males was 1235 days and 124.1 days, respectively. Mating consisted of the three following phases: the precopulatory (courtship and attempting copulation), copulation and postcopulatory phases. The mating times of the precopulatory, copulation and postcopulatory phases were 159.6 +/- 288.9, 8.4 +/- 7.1, 12.9 +/- 4.5, and 198.8 +/- 69.8 s. (C) 2016 Published by Elsevier B.V. on behalf of Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society.</P>

New records of phoretic mites (Acari: Mesostigmata) associated with dung beetles (Coleoptera: Scarabaeidae) in Korea and their ecological implication

Keum, E.,Takaku, G.,Lee, K.,Jung, C. Korean Society of Applied Entomology 2016 Journal of Asia-Pacific Entomology Vol.19 No.2

<P>Phoresy is one of the dispersal mechanisms of wingless microarthropods such as mites attached on the winged host. Mites associated with two scarabaeid beetles, Copris ochus and C. tripartitus (Coleoptera: Scarabaeidae) were collected from the ex-situ conservation site in Heongseong, Gangwon province in Korea. Among them, four species Copriphis hastatellus Berlese, 1910 (Eviphididae); Holostaspella scatophila Takaku, 1994 (Macrochelidae); Macrocheles japonicus Evans and Hyatt, 1963 (Macrochelidae); and Onchodellus siculus Berlese, 1892 (Pachylaelapidae) were recorded for the first time in Korea. Also, Parasitus consanguineus Oudemans and Voigts (Parasitidae) was previously recorded from the specimen in northern part of Korea in 1904, but since then no record has been made for a century. This is the second observation of this species over 100 years in the Korean peninsula. Description of this species is presented for comparison with the original description. Further discussion explored the relationship between the mites and dung beetles, and possible implication for the conservation of the endangered species. (C) 2016 Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society. Published by Elsevier B.V. All rights reserved.</P>

The transition of noteworthy rice diseases and their control in Korea

Park J. S. Korean Society of Applied Entomology 1965 한국식물보호학회지 Vol.4 No.-

In Korea the most important plant industry is the rice-growing but she has not yet attained self-sufficiency with regard to rice which is the basic food of Korean. In the past, various measures of increasing rice production have been tried with some success but the increasing rate of did not show the sufficient result. Judging from experiences, disease control may be the most important factor which has influence on increasing of rice production in Korea. During the past 60 years three periods divided by the transition of rice diseases were noted, and especially the recent transition attracted much attention . That is, sheath blight and stripe which were minor diseases in the past have promptly spread all over the country and caused heavy losses to rice plant, and also local outbreak of bacterial leaf blight and dwarf were noticed. Various environmental factors are related to such transition of rice disease. Above all, cultivated varieties susceptible to these diseases, increase of application of nitrogenous fertilizer, earlier transplanting and density of transplanting are considered to be lucre closely related to the development of these diseases and successive development of blast. On the other hand. application of forage fungicides such as organic mercury compounds specific to blast contributed to reduce prevalent area if blast in spite of wide spread of susceptible varieties and increase of application of nitrogenous fertilizer. These facts were confirmed by Korean investigators At the present which various diseases to control coexist in the same region, no one variety resistant to all of these diseases is provided and cultural practices for the control of these diseases often do not produce sufficient yield of rice. it is emphasized that a role of pesticides is very great.

Monitoring and evaluation of differential insecticide resistance profiles in the immigrant vs. indigenous populations of the small brown planthopper (Laodelphax striatellus Fallen) in Korea

Jeong, I.H.,Lee, S.W.,Choi, B.R.,Lee, S.H.,Kwon, D.H. Korean Society of Applied Entomology 2016 Journal of Asia-Pacific Entomology Vol.19 No.1

<P>The small brown planthopper (SBPH), Laodelphax striatellus Fallen, is an important pest that causes severe yield losses by transmitting plant viruses to rice. For the efficient control of SBPH in Korea, the respective resistance levels in the immigrant and indigenous populations need to be discerned. The resistance levels to 10 insecticides (three carbamates, an organophosphate, four neonicotinoids, and a phenylpyrazole) were evaluated in 21 field populations collected from either SBPH-immigrating or indigenous regions during two different seasons (spring vs. summer). Imidacloprid resistance was most widely observed in many regional populations, followed by thiamethoxam resistance. Interestingly, the resistance level to imidacloprid was significantly higher in both immigrant and late-summer-collected populations than in indigenous and early spring-collected populations, respectively [33- (p = 0.018) and 2.6-fold (p = 0.026)]. Moreover, the late summer immigrant population exhibited higher imidacloprid resistance (2.4-fold) than the early spring-collected population from the same region, suggesting that the migratory SBPH that immigrated into Korea already exhibited imidacloprid resistance traits and were further selected after inhabitation. All field populations showed little resistance to fipronil (0.1- to 0.7-fold), suggesting that it is the most effective among the tested insecticides to control field populations of SBPH. The coefficient of variation of the resistance ratio (RR) among different regional populations and the correlation co-efficient of RR among different insecticides have been suggested as supplementary parameters when determining appropriate insecticides as respective indicators for the dispersion status of resistance among SBPH populations and the possibility of cross resistance among tested insecticides. (C) 2015 Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society, Published by Elsevier B.V. All rights reserved.</P>

남한산 큰자색호랑꽃무지의 종 동정 (딱정벌레목, 풍뎅이과, 꽃무지아과)

한태만,박인균,김기경,세르게이 이바노브,박해철,Han, Taeman,Park, In Gyun,Kim, Ki-Kyoung,Ivanov, Sergey,Park, Haechul Korean Society of Applied Entomology 2017 한국응용곤충학회지 Vol.56 No.3

The South Korean hermit beetle has previously been identified as Osmoderma opicum, which is distributed in Japan. Because of its rarity, this species is classified as an endangered species. To date, however, the identity of this species in South Korea has not been conclusively confirmed. To assess the taxonomic status of the hermit beetle occurring in South Korea, we performed a comparative study with the beetle's Eurasian congeners, based on morphological examination and molecular analysis using COI gene sequences. The results clearly showed that the South Korean hermit beetle is identical to Osmoderma caeleste, which has been described from the Russian Far East. Therefore, we suggest that the taxonomic identity of the South Korean hermit beetle is O. caeleste.

Review of Korean Dacetini (Hymenoptera, Formicidae, Myrmicinae)

Lyu, Dong-Pyeo,Choi, Byeong-Moon,Cho, Soo-Won Korean Society of Applied Entomology 2001 INSECTA KOREANA Vol.18 No.3

Most current systematic changes in the tribe Dacetini are applied to the Korean dacetine ants. The tribe Dacetini of Korea include Strumigenys lewisi, Pyramica incerta, p. japonica, P mutica, and P. hexamerus. Taxonomic positions are revised, new informations are added, and a full reference list is provided.

Seasonal Occurrence and Morphological Measurements of Pine Sawyer, Monochamus saltuarius Adults (Coleoptera: Cerambycidae)

Han, Ju-Hwan,Yoon, Chang-Mann,Shin, Sang-Chul,Kim, Gil-Hah Korean Society of Applied Entomology 2007 Journal of Asia-Pacific Entomology Vol.10 No.1

To investigate the seasonal occurrence of the pine sawyer, Monochamus saltuarius, its emergence rate was observed in pine log and Korean white pine log conditions after the logs were cut to a regular size and placed in a netted cage. Numerical measurement was also conducted for sex ratios, fresh weight, body length and width, head width, and length of adult antennae. In the Korean white pine logs, the first day of emergence occurred on May 2, the day of peak emergence observed on May 29, and the last day of emergence was on June 10. In the pine logs, the first day of emergence occurred on May 7, the day of peak emergence was observed on May 22, and the last day of emergence was on May 30. The period of seasonal occurrence observed for the pine logs was shorter than that of Korean white pine logs. Sex ratios were 0.58; the average fresh weights of males (331) and females (379) were 0.21 g and 0.23 g; body lengths were 17.6 mm and 18.4 mm; body widths were 5.47 and 5.81 mm; head widths were 3.30 mm and 3.42 mm; and antennal lengths were 40.28 mm and 26.40 mm, respectively. The ratio of the length of the antenna to the body length was measured to be 2.0 in males and 1.4 in females.

Taxonomic Review of the family Platygastridae (Hymenoptera: Platygastroidea) from the Korean Peninsula

Buhl Peter Neerup,Choi June-Yeol Korean Society of Applied Entomology 2006 Journal of Asia-Pacific Entomology Vol.9 No.2

A total of 41 species were investigated, including only one species in the check list of Korean insects, which contains five platygastrids. Eleven species of the family Platygastridae are described as new to science from Korea, viz. Allostemma bicolor Buhl & Choi, Amblyaspis koreana Choi & Buhl, Leptaeis koreana Buhl & Choi, L. ocellaris Choi & Buhl, Platygaster ciliata Buhl & Choi, P. flavifemorata Buhl & Choi, P. kui Choi & Buhl, P. tripotini Buhl & Choi, Synopeas eollinus Choi & Buhl, S. kimi Choi & Buhl, and S. pumilus Buhl & Choi. Further nineteen species are recorded from The Korean Peninsula for the first time, and some new records are added for eleven species, already known from the Peninsula. Keys are given to the genera and species of Platygastridae hitherto recorded from The Korean Peninsula. As a result, platygastrid fauna of The Korean Peninsula is composed of 68 species up to now.

Revision of the Fauna of Korean Spiders (Arachnida: Araneae)

Namkung, Joon,Kim, Seung-Tae,Lee, Joon-Ho Korean Society of Applied Entomology 2000 INSECTA KOREANA Vol.17 No.4

A list of Korean spiders was revised, including 46 families 225 genera 622 species which were reported by December 1999. Of these 61 added species and 37 alterated scientific names were supplemented, and 3 species, which have been reported since June 1994, were newly synonymized. The spider fauna of Korea is composed of 12 Cosmopolitan, 34 Holarctic, 66 Palearctic and 136 Korean endemic species. The spider fauna of Korea has much more similarity with Japanese spider fauna than with those of other countries.