Abstract
The larval defensive gland ofSchizura concinna (J.E. Smith) is situated in the thorax and consists of two sacs joined by an interglandular neck. Its orifice opens into a transverse invagination of the integument at the cervical margin of the prosternite. The major component of the defensive secretion, formic acid, was identified as itsp-bromophenacyl ester. Ancillary components decyl acetate, dodecyl acetate, and 2-tridecanone from the anterior portion of the gland were identified by GLC and GS-MS.
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Detwiler, J.D. 1922. The ventral prothoracic gland of the red-humped apple caterpillar (Schizura concinna Smith and Abbot).Can. Entomol. 54:176–191.
Eisner, T., Meinwald, J., Monro, A., andGhent, R. 1961. Defence mechanisms of arthropods. I. The composition and function of the spray of the whipscorpion,Mastigoproctus giganteus (Lucas) (Arachnida, Peripalpida).J. Insect Physiol. 6(4):272–298.
Eisner, T., Meinwald, Y.C., Alsop, D.W., andCarrel, J.E. 1968. Defense mechanisms of arthropods. XXI. Formic acid andn-nonyl acetate in the defensive spray of two species ofHelluomorphoides.Ann. Entomol. Soc. Am. 61:610–613.
Eisner, T., Kluge, A.F., Carrel, J.E., andMeinwald, J. 1972. Defense mechanisms of arthropods. XXXIV. Formic acid and acyclic ketones in the spray of a caterpillar.Ann. Entomol. Soc. Am. 65:765–766.
Grisdale, D. 1970. An improved laboratory method for rearing large numbers of spruce budworm,Choristoneura fumiferana (Lepidoptera: Tortricidae).Can. Entomol. 102:1111–1117.
Hermann, H.R., andBlum, M.S. 1967. The morphology and histology of the hymenopterous poison apparatus. II.Pogonomyrmex badius (Formicidae).Ann. Entomol. Soc. Am. 60:661–668.
Herrick, D.W., andDetwiler, J.D. 1919. Notes on the repugnatorial glands of certain notodontid caterpillars.Ann. Entomol. Soc. Am. 12:44–48.
Hintze, C. 1969. Histologische Untersuchungen am Wehrsekretbeutel vonCerura vinula L. undNotodonta anceps Goeze (Notodontidae: Lepidoptera).Z. Morphol. Tiere 64:1–8.
Humason, G.L. 1967. Animal Tissue Techniques, 2nd ed. W.H. Freeman and Co., San Francisco.
Locke, M., Krishnan, N., andMacMahon, J.T. 1971. A routine method for obtaining high contrast without staining actions.J. Cell Biol. 50:540–544.
Pavan, M., andValcurone-Dazzini, M. 1976. Sostanze di difensa dei lepidotteri.Pubbl. 1st. Entom. Agr. Univ. Pavia 3:3–23.
Regnier, F.E., andWilson, E.O. 1971. Chemical communication and “propaganda” in slave maker ants.Science 172:267–269.
Weatherston, J., andPercy, J.E. 1978. Venoms of Coleoptera, pp. 511–548in S. Bettini (ed.).Arthropod Venoms, Handbook of Pharmacology. Springer Verlag, Heidelberg.
Weatherston, J., MacDonald, L.M., Blake, T., Benn, M.H., andHuang, Y.Y. 1978. Analytical methods for the identification of small carboxylic acids isolated from arthropods.J. Chromatogr. 161:347–351.
Wilson, E.O., andRegnier, F.E. 1971. The evaluation of the alarm-defense system in formicine ants.Am. Nat. 105:279–289.
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Weatherston, J., Percy, J.E., MacDonald, L.M. et al. Morphology of the prothoracic defensive gland ofSchizura concinna (J.E. Smith) (Lepidoptera:Notodontidae) and the nature of its secretion. J Chem Ecol 5, 165–177 (1979). https://doi.org/10.1007/BF00988232
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DOI: https://doi.org/10.1007/BF00988232