Glucosinolates (GLS) are secondary plant metabolites that as a result of tissue damage, for example due to herbivory, are hydrolysed into toxic compounds that negatively affect generalist herbivores. Specialist herbivores have evolved specific adaptations to detoxify GLS or inhibit the formation of toxic hydrolytic products. Although rarely studied, GLS and their breakdown products may also aff...

Department of Zoology, Tel Aviv University, Ramat Aviv 69978, Israel H. A . Lloyd Laboratory of Chemistry, National Heart Lung and Blood Institute, Bethesda. MD 20892, USA Z. Naturforsch. 42c, 1027—1029 (1987); received March 30/June 11, 1987 Messor ebeninus, Poison Gland. Dufour's Gland, Exocrine Chemistry. Anabasine Anabasine is the major volatile product in the poison gland exudate of Messor...

Five new ichneumon wasp species are described from South Africa: Campoplex baal sp. n., diablo mephisto Casinaria brachycera n. and Hyposoter nanodraco An updated identification key to the Afrotropical is given. Dusona miranda (Szépligeti, 1908) first reported Kenya, hitherto unknown male described. anomala (Seyrig, 1935) Ethiopia, Charops electrinus Vas, 2020 reunionis (Benoit, 1957) Africa.

A comparative study of the exocrine chemistry of Messor bouvieri, M. barbarus, M. lusitanicus, M. marocanus, M. arenarius, M. ebeninus, M. rugosus, M. angularis, and M. cephalotes has been carried out. Anabasine and related nicotinoids were detected in all these species except for M. barbarus, M. lusitanicus, and M. rugosus. The alkenes from the Dufour’s glands of these ants were shown to be 1-...