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Peer-Review Article



Syrphid flies of many species visit blossoms to obtain nectar and pollen (see Waldbauer 1983 for referencesl. Many of these syrphids, in common with other insects (Parker 1978), also find mates at the blossoms. Males of these syrphid species make aerial patrols of inflorescences frequented by females, alternating these patrols with sitting on foliage. l11ey pounce on or chase insects of various species and swiftly initiate copulation with can specific females (Collet and Land 1975; Maier 1978; Maier and Waldbauer 1 979a,b).

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