摘要：

The Pentatomoidea include devastating pests, as well as beneficial predators. In the pest, Nezara viridula , males liberate a long-range attractant pheromone containing a trans -epoxide of ( Z )-α-bisabolene as the major component, and in Eurygaster integriceps , vanillin and ethyl acrylate from males attract nearby females after the bugs migrate to wheat fields. Males of an African cotton pest, Sphaerocoris annulus , emit a blend of ( Z )- and ( E )-4,8-nonadienal, ( Z )-4-nonenal, and nonanal that is probably an attractant pheromone. In the cottonseed-feeding Tectacoris diophthalmus , males that have not found females produce a crystalline deposit of 3,5-dihydroxy-4-pyrone which may be an aphrodisiac and/or an attractant. Pheromones attractive to flying adults have been identified from male predaceous pentatomids (Asopinae) in the genus Podisus and artificially mimicked; R -(+)-α-terpineol, ( E )-2-hexenal, and benzyl alcohol for P . maculiventris , S -(+)-linalool, ( E )-2-hexenal, and benzyl alcohol for P . fretus . Antipodes of chiral monoterpenols are inactive but not inhibitory, and the pheromones are not mutually inhibitory. A complex of parasitoids use these pheromones to locate hosts. Males of 5 other asopine species that prey upon pestiferous beetles yield pheromones comprised of 6,10,13-trimethyltetradecanol and/or the isovalerate ester of this alcohol.

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