• Korean journal of applied entomology
• /
• v.31 no.2
• /
• pp.113-121
• /
• 1992

The study was conducted to investigate the community structure of superfamily Coreoidea (Geocorisae: Hemiptera) in Mt. Kyeryongsan from August, 1989 to August, 1990. The collected coreoid insects were composed of 17 species, 13 genera, and 2 families. Percentages of coreoid insects found in each observed zone were 47.4% (13 species) in the paddy bank, 37.4 % (13 species) in the weedy field and 15.2% (11 species) in the shrubs. Dominant species and Simpson's dominance indices were Riptortus clavatusa and Stictopleurus crassicornis ($\lambda$=0.128) in the paddy field, Cletus schmidti and Homoeocerus dilatatus ($\lambda$=0.141) in the weedy field, Riptortus clavatus and Homoeocerus dilatatus ($\lambda$=0.199) in the shrubs. Seasonal dominant species were Cletus trigon us and Rhopalus maculatus ($\lambda$=0.149) in Spring, Cletus schmidti and Homoeocerus dilatatus ($\lambda$=0.132) in Summer, and Riptortus clavatus and Cletus schmidti ($\lambda$=0. 386) in Autumn. Species diversity indices(H') in the paddy bank, weedy field, and shrubs were 0.931, 0.916, and 0.810, respectively. Eveness indices(J') were 0.836, 0.800, and 0.778, respectively. Community structures were almost similar between the paddy bank and the weedy field.

• Journal of Wetlands Research
• /
• v.12 no.2
• /
• pp.35-46
• /
• 2010

This study was conducted for searching the fauna, altitudinal distribution, and food patterns of the aquatic insects on Jeju island. The samples were collected from 102 freshwater wetlands during 2004 to 2008. The identified species were 100 belonged to 73 genera, 32 families, and 7 orders. One species of the genus Ephemeroptera, 23 of the Odonata, 1 of the Plecoptera, 23 of the Hemiptera, 47 of the Coleoptera, 3 of the Trichoptera, and 2 of the Diptera were identified in this study. The most widely distributed species was Sigara substriata, which was followed by Crocothemis servilia, Orthetrum albistylum, Gerris latiabdominis, and Anisops ogasawarensis. Sixteen species including Gynacantha japonica were very restrictedly distributed, which were sampled from only one site, respectively. The restrictedly distributed species (R) were classified into three altitudinal ranges, low (L), middle (M), and high (H). Ten species including Ranatra unicolor were RL type, only one species, Berosus japonicus, was RM, and 6 species including Nemoura KUb were RH. Narrowly distributed species (N) were 44 including Lethocerus deyrollei and intermediately distributed species (I) were 18 including Hesperocorixa distanti, and widely distributed species (W) were 21 including Nepa hoffmanni. According food uptake patterns, 75 species were carnivores, 18 herbivores, 5 omnivores, and 2 detritivores. Especially almost W were carnivores. From these results, we could concluded that the most aquatic insects species of Jeju island were characterized by their very limited altitudinal distribution range and carnivorous preference.