• Korean journal of applied entomology
• /
• v.43 no.2
• /
• pp.163-168
• /
• 2004

Reproductive behavior of the red-striped golden stink-bug, Poecilocoris lewisi Distant, was investigated in a room at 25${\pm}$1$^{\circ}C$, 60${\pm}$5％ R.H. and the 16L：8D photo regimen. Mating of adults started on the 9th day after emergence, peaked 84.5％ on the 21st day. Mating behavior of this insect was observed as follows : approach, antennal contact, mount, abdominal approach and copulation (end-to-end position). Males were quite active and produced by rubbing their body with the cages while searching for the females. However, the females responded passively during mating. Studios were further carried to see the response of virgin pairs under controlled conditions. It was observed that 69％ of pairs succeeded in mating within one hour after the lights were switched on. Females remained unreceptive for 7 days of first mating, however, males were very much positive subject to the availability of virgin females. Although the remating frequency of female was positively correlated with fertility, but a male showed lower fertility as its frequency increased.

• Proceedings of the Korean Society of Sericultural Science Conference
• /
• 2000.10a
• /
• pp.109-109
• /
• 2000

• Korean journal of applied entomology
• /
• v.42 no.2
• /
• pp.133-138
• /
• 2003

To establish the successive rearing of red-striped golden stink bug, Poecilocoris lewisi Distant, developmental characteristics, host plant and oviposition preference were investigated. Raw peanuts were supplied to the insect as a substitute food at 25$\pm$$1^{\circ}C$, 60$\pm$5% R.H. and under 16Lㆍ8D photo regimen. Total developmental period was 48 days: 8.2$\pm$0.4, 5.4$\pm$0.2, 8. $\pm$0.5, 6.4$\pm$0.4, 7.4$\pm$0.3 and 12.6$\pm$0.8 days for egg, first though fifth instar, respectively. The instar survival rate was 57.1% and the sex ratio was estimated to be 53 : 47 (male : female). Adult longevity was on the average 30.8 in male and 35.4 days in female, respectively. Egg of P. lewisi was globular ($\phi$1.8-1.9mm) with milky white in color The number of eggs oviposited per clutch was mostly 14. Pre-oviposition period was 25.8 days and mean frequencies of oviposition were 4.4. Female preferred to oviposit on the host plant when available, but oviposited on the artificial leaf successively when the host is not around. On the other hand P. lewisi preferred to suck the nectar of stem or fruit of Phellodendron amurense Ruprecht, Zanthoxylum schinifolium Siebold et zuccarini, Cornus officinalis Siebold et zuccarini and Cornus controversa Hemsley among the 18 plant species tested.

• Korean journal of applied entomology
• /
• v.52 no.2
• /
• pp.93-100
• /
• 2013

In this study, the distribution of Cantao ocellatus in Korea occurred at Jindo, Tongyoung, Gwangju and Taean including Jejudo in 2012 and was coincidentally in accordance with the distribution of Mallotus japonicus as a host plant. The adult emerges in M. japonicus occur from late June to early July and can be observed until the end of October. The investigation of the female and male was measured, developmental characteristics, host plant and oviposition preference under the conditions of temperature $25^{\circ}C({\pm}2)$, humidity 65%(${\pm}2$), day length 16L:8D, by indoor breeding. For females and males respectively, average body lengths were 26.20 mm and 23.88 mm, body widths 11.35 mm and 10.57 mm, head widths 3.84 mm and 3.64 mm, probosics lengths 7.90 mm and 7.27 mm, antennal lengths 9.87 mm and 9.69 mm, anterior leg lengths 12.50 mm and 12.27 mm, intermediate leg lengths 14.61 mm and 13.12 mm, posterior leg lengths 16.90 mm and 16.53 mm, and fresh weights 0.46 g and 0.31 g. It was seen that two kinds of C. ocellatus had prickles at the end of the pronotum which had developed in the fifth instars. The female is distinguished from the male by the reproductive organ and the spotted pattern on the abdominal segment. The preference of drinks was fruit, leafstalk, midrib, and branch in Mallotus japonicus (Thunb.) Muell. Arg., Mallotus japonicus 'Variegatus', Ricinus communis L., Lonicera japonicus var. repens (Siebold) Rehder, Citrus sinensis (L.) Osbeck and Zelkova serrata (Thunb.) Makino.

• Korean Journal of Agricultural Science
• /
• v.9 no.2
• /
• pp.519-539
• /
• 1982

An preliminary study was made with special references on the insect fauna of Mt. Gyeryong during the period from mid-May to mid-September 1981. The results were obtained as follows; 1. 673 species of insects within 156 families of 20 orders were identified and listed herewith. 2. The 16 species are first records from Korea : Phaneraptera nigro-antennata (Tettigoniidae : Orthop.), Phraraortes kumamotoensis(Phasmidae : Phasm.), Nesogaster lewisi (Nesogasteridae : Dermap), Polymerus palustris(Miridae : Hemip.), Agrosteomela indica (Chrysomelidae:Col.), Monochimus sparsutus (Cermbicidae : Col.), Oberthiiria ialcigera (Bombycidae: Lep.), Alcis albiiera (Geometridae : Lep.), Proplepsis diazama (G eometridae : Lep.) Pandemis cinnamomeana (Tortricidae : Lep.), Hypenodes squalida (Noctuidae : Lep.), Hypolimnas bolina (Nymphalidae : Lep.), Ctenophora nohirae (Tipulidae: Dip.), Ortalotrypeta isshiki (Trypetidaedae : Dip.), Trypeta artemisicola (Trypetidae : Dip.), Ichneumom 8-guttatus ( Ichneumonidae : Hymenop.). 3. We could find a considerable number of Oriental fauna species, Lepismachilis nipponica, Nezara antennata, Parapolybia varia, Anthophora zonata, Parnara guttata, Byasa alcinous, Eurema laeta, Pieris canidia, Eizera maha, Kaniska canace, Danaus sita including two newly recorded species, Monochimus sparstus and Hypolimnas bolina.

• Korean Journal of Environment and Ecology
• /
• v.23 no.5
• /
• pp.411-417
• /
• 2009

This research is intended to discover physiological and biochemical defense mechanisms against herbivores of 8 species of the genus Acerby examining the morphological characteristics of the leaf, the structure and number of leaf domatia, herbivores insects and mites feeding on leaves, which were collected from the trees growing in Mt. Chiak, Mt. Cheongtae, Mt. Jungwang, Mt. Bangtae, Mt. Taebaek and Wonju City. This research was conducted from May through July, 2009, and the results are as follows. The domatia of A. pseudosieboldianum, A. pictum subsp. mono and A. mandshuricum belongs to tuft type; that of A. palmatum, A. triflorum and A. tschonoskii pocket+tuft type; and that of A. tegmentosum pocket type. The number of domatia per leaf turned out to be the highest in the case of A. tegmentosum(20.2), and the lowest in the case of A. ginnala (4.2). Leaf surface trichomes of A. palmatum, A. pseudosiebotdianum, A. ginnala and A. mandshuricum are covered with villi; those of A. pictum subsp. mono and A. triflorum with soft, pilose type of hair, and those of A. tschonoskii with stiff, strigose hair. The trichome density of lower leaf surface is found to be higher than that of the upper leaf surface. Only in the case of A. palmatum, A. pseudosieboldianum, A. tegmentosum and A. tschonoskii, a small amount of nectar is found to be secreted from the distal vein parts of the leaf margin. The number of mites on each leaf are found to be significantly different among tree species, and average mites number per leaf was the highest in the case of A. tschonoskii (9.2/leaf), and A. mandshuricum, A. pseudosieboldianum, and A. triflorum follow it in decreasing order. Minute insects attacking the leaf of Acer spp. include Periphyllus californiensis, P. viridis, Psylla spp, and gall mites, and the number of these insects are found in Periphyllus californiensis, Psylla spp, P. viridis, and Cicadellidae sp. in decreasing order. The natural enemies of these herbivores insects are predatory mites, such as Chilocorus rubidus, Coccinella septempunctata and the nymph, Aphidius ervi, Poecilocoris lewisi and its larva, and Poecilocoris lewisi. Lasius japonicus and Formica japonica are symbiotic with aphids, and supports herbivores. Finally, our research confirmed that predatory mites attack Periphyllus californiensis and suck the body fluid of their victim. This proves that mites form a symbiotic relationship with plants through the mediation of leaf domatia. This also indicates that a protective mutualism may be more conspicuous in temperate broad-leaved trees.