Identification of trail pheromone of larva of eastern tent caterpillarMalacosoma americanum (Lepidoptera: Lasiocampidae)
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Previous studies have shown that larvae of the eastern tent caterpillar (Malacosoma americanum F.) mark trails, leading from their tent to feeding sites on host trees, with a pheromone secreted from the posterior tip of the abdominal sternum. 5β-Cholestane-3,24-dione (1) has been identified as an active component of the trail. The larvae have a threshold sensitivity to the pheromone of 10−11 g/mm of trail. Several related compounds elicit the trail-following response. Two other species of tent caterpillars also responded positively to the pheromone in preliminary laboratory tests.
Key WordsEastern tent caterpillar Malacosoma americanum Lepidoptera Lasiocampidae larva trail pheromone recruitment 5β-cholestane-3,24-dione
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- Augustine, R.L., 1972a, 1972b, Steroid Hydrogenation in “Organic Reactions in Steroid Chemistry” Vol. 1, p. 130, p. 123, J. Fried and J.A. Edwards eds., Van Nostrand Reinhold New York.Google Scholar
- Combe, M.G.,Henbest, H.B., andJackson, W.R. 1967. Aspects of Stereochemistry. Part XXI.J. Chem. Soc. (C) 2467–2469.Google Scholar
- Fitzgerald, T.D., andEdgerly, J.S. 1982. Site of secretion of the trail marker of the eastern tent caterpillar.J. Chem. Ecol. 8:31–39.Google Scholar
- Fitzgerald, T.D., andPeterson, S.C. 1983. Elective recruitment communication by the eastern tent caterpillar (Malacosoma americanum).Anim. Behav. 31:417–423.Google Scholar
- Jaffe, K. andHowse, P.E. 1979. The mass recruitment system of the leaf cutting ant,Atta cephalotes (L.).Anim. Behav. 27:930–939.Google Scholar
- Long, D.B. 1955. Observations on sub-social behaviour in two species of lepidopterous larvae,Pieris brassicae L. andPlusia gamma L.Trans. R. Entomol. Soc. London 11:421–437.Google Scholar
- McManus, M.L., andSmith, H.R. 1972. Importance of silk trails in the diel behavior of late instars of the gypsy moth.Environ. Entomol. 1:793–795.Google Scholar
- Morgan, E.D. 1984. Chemical words and phrases in the language of pheromones for foraging and recruitment, pp. 169–194,in Lewis, T. (ed.). Insect Communication. Academic Press, New York.Google Scholar
- Ochi, K., Matsunaga, I., Shinodo, M., andKaneko, C. 1979. Synthetic studies of vitamin D3 analogues from bile acids. Part 2.J. Chem. Soc. Perkin 1:161–164.Google Scholar
- Still, W.C., Kahn, M., andMitra, A. 1978. Rapid Chromatographic technique for preparative separations with moderate resolution,J. Org. Chem. 43:2923–2925.Google Scholar
- Tumlinson, J.H., Moser, J.C., Silverstein, R.M., Brownlee, R.G., andRuth, J.M. 1972. A volatile trail pheromone of the leaf-cutting ant,Atta texana.J. Insect. Physiol. 18:805–814.Google Scholar