Tuesday, 19 November 2002

This presentation is part of : Display Presentations, Subsection Cb. Apiculture and Social Insects

Intraspecific variation of cuticular hydrocarbon profiles of the Japanese hornets

Masahiko Tokoro and Shun'ichi Makino. Forestry and Forest Products Research Institute, Forest Insect Section, Norin P.O.Box 16, Tsukuba, Japan

The Influence of individual cuticular hydrocarbons on nestmate recognition in the Japanese hornets was investigated. Cuticular hydrocarbons were extracted with n-hexane from individuals of several colonies of japanese hornet, Vespa analis Fablicius (Hymenoptera : Vespidae) and analyzed by combined Gas-chromatography - mass spectrometry. Cuticular hydrocarbons were also extracted from individuals which caught by traps made with liquor and orange juice. On the results of the GC-MS analyses, 12 major hydrocarbons and more than 20 miner components were detected from the extracts of the individual hornet, V. analis, even from the extracts of the individuals caught by a liquor orange-juice trap in short-term. The results showed some intraspecific variation of the quantities of each component of the hydrocarbon profiles, even in a same colony and same cast.

Species 1: Hymenoptera Vespidae Vespa analis (hornets, yellowjackets)
Keywords: cuticular hydrocarbons, nestmate recognition

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