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An Unexpected Mixture of Substances in the Defensive Secretions of the Tubuliferan Thrips, Callococcithrips fuscipennis (Moulton)
- Tschuch, Gunther, Lindemann, Peter, Moritz, Gerald
- Journal of chemical ecology 2008 v.34 no.6 pp. 742-747
- chemical composition, Eriococcidae, acetates, monoterpenoids, scale insects, iridoids, alkanes, Phlaeothripidae, defensive secretions
- Adults and larvae of the thrips Callococcithrips fuscipennis (Moulton) (Thysanoptera: Tubulifera: Phlaeothripidae) live in the sticky wax masses of adult females of the felt scale insect Callococcus acaciae (Maskell) (Sternorrhyncha: Coccoidea: Eriococcidae). The scale is sessile and feeds on Kunzea shrubs (Myrtales: Myrtaceae). If stressed, the thrips produce droplets of secretions. The mixture contains pentadecane, tridecane, two monoterpenoids, hexadecyl butanoate, and smaller amounts of 15 other esters of long-chain unbranched alcohols identified as acetates, butanoates, hexanoates, and octanoates. The monoterpenoids are dolichodial, an iridoid, and an unknown substance with a mass spectrum very similar to that of anisomorphal and peruphasmal, diastereomers of dolichodial, but with a different retention time. Iridoids, butanoates, hexanoates, and octanoates have not been previously identified in Thysanoptera.