Defensive odor emission from larvae of two sawfly species,Pristiphora erichsonii andP. wesmaeli |
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| Authors: | S. Jonsson G. Bergström B. S. Lanne U. Stensdotter |
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| Affiliation: | (1) Department of Entomology, Uppsala University, Box 561, S-751 22 Uppsala, Sweden;(2) Department of Chemical Ecology, Göteborg University, Box 33 031, S-400 33 Göteborg, Sweden;(3) Department of Zoology, Uppsala University, Box 561, S-751 22 Uppsala, Sweden |
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| Abstract: | The emission of species-specific odors byPristiphora erichsonii andP. wesmaeli is accompanied by a characteristic defensive behavior called  snap bending. When the larvae are disturbed, blends of volatile compounds are emitted from ventral glands. The odor ofP. erichsonii, a colonial species, is composed of bornyl acetate, borneol,trans-pinocarveol, myrtenol, benzaldehyde, and tetradecyl, hexadecyl, and octadecyl acetates, whereas that of the solitaryP. wesmaeli is composed of 3-carene-10-al, linalool, myrtenal, and benzaldehyde. The role of these compounds in the defensive behavior of the larvae is discussed.Hymenoptera: Tenthredinidae. |
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| Keywords: | Larch sawfly Pristiphora erichsonii Hymenoptera Tenthredinidae 3-carene-10-al benzaldehyde bornyl acetate larval snap-bending |
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