• Korean journal of applied entomology
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• v.32 no.4
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• pp.414-419
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• 1993

Species and seasonal occurrences of Sencinae, Melolonthinae and Rutelinae chafers captured b by blacklight traps were investigated from 1989 to 1991 in Suwon and Chonju. Numbers of s species captured in Suwon and Chonju were 6 and 6 for Sericinae, 8 and 7 for Melolothinae, 7 a and 8 for Rutelinae, 21 and 21 in total, respectively. Species with more captures from both districts in each subfamily were Maladera orientalis of Sericinae, Holotrichia morosa and H. diomphalia of Melolonthinae, and Anomala corpulenta, and A. rufocuprea of Rutelinae. Adults of t the above five species were captured 1O~20 days earlier in Chonju than in Suwon. H. d diomphalia adults occurred mamly In odd years in Chonju, which is the same pattern as in S Suwon.

• Journal of Ginseng Research
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• v.15 no.3
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• pp.200-204
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• 1991

Densities and larval food habits of Holotrichia titanis belonging to Melolonthinae, and of Anomala corpulenta and A. mfocuprea belonging to Rutelinae, collected from surroundings of ginseng fields, were investigated to determine potentia]s as ginseng pests in scarabaeids. H. titanis had similar food habit to the ginseng pests, H. morosa and H. diomphalia, although the density of H. titanis was relatively low during the period of survey, which indicates that the scarabaeid may have potentials to be a major pest with build-up or the population in the fields. However, A. corpulenta and A. rufacuprea with higher populations than H. morose and H. dicmphalia had no or low potency as ginseng pests since they had little preference to ginseng roots or did not feed on these. The latter two species in Rutelinae showed different food habits in relation to dead organic matter.

• Korean journal of applied entomology
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• v.34 no.1
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• pp.9-14
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• 1995

From a chemist's perspective, Scarabaeidae is one of the most exciting group of insects to work on the isolation, identification, and synthesis of sex pheromones because-as opposed to Lepidoptera, which by and large utilizes straight chain alcohols, aldehydes, and acetates-the pheromonal chemistry of scarab beetles is remarkably diverse. While species in the subfamily Rutelinae utilize pheromone constituents, which are presumably fatty acid derivatives, the more primitive species in the subfamily Melolonthinae use phenolic, amino acid derivative, and terpenoid compounds. Here, I discuss the recent advances we have accomplished in the identification of scarab sex pheromones with especial emphasis on their chemical diversity. Also, I discuss the potential role of these sex pheromones in insect pest management. Field tests revealed that, in contrast to what has been frequently observed in the Lepidoptera, the higher the dosage of sex pheromone loaded in the traps the greater the capture of scarab beetles. These data suggest that mass trapping is more likely to be useful for scarab pest management than mating distruption.

• Korean journal of applied entomology
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• v.23 no.3 s.60
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• pp.181-182
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• 1984