Title: | Unusual periodicity of sex pheromone production in the large black chaferHolotrichia parallela |
Author(s): | Leal WS; Sawada M; Matsuyama S; Kuwahara Y; Hasegawa M; |
Address: | "Department of Insect Physiology and Behavior, National Institute of Sericultural and Entomological Science, Tsukuba, 305, Ibaraki, Japan" |
ISSN/ISBN: | 0098-0331 (Print) 0098-0331 (Linking) |
Abstract: | "(R)-(-)-Linalool was identified as a minor component sex pheromone of the scarab beetleHolotrichia parallela (Coleoptera: Scarabaeidae). Field evaluations revealed that, although not attractive per se, (R)-(-)-linalool enhances the attractiveness of the major sex pheromone,L-isoleucine methyl ester (LIME). Analyses of the pheromone titers in the glands of field-collected females demonstrated the occurrence of peak levels of 48-hr ('circabidian') periodicity. The levels of LIME in the glands of 45-day-old virgin females increased over three times from the scototo the photophase of a calling day, but the amounts of (R)-(-)-linalool did not significantly change. Virgin females had in average two times more LIME and 3.6 times more (R)-(-)-linalool than the average amount found in the field-captured beetles throughout the season" |
Notes: | "PubMed-not-MEDLINELeal, W S Sawada, M Matsuyama, S Kuwahara, Y Hasegawa, M eng 1993/07/01 J Chem Ecol. 1993 Jul; 19(7):1381-91. doi: 10.1007/BF00984883" |