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Green lacewings (Chrysopidae) are important predators of many soft-bodied pest insects, for instance aphids. Previous studies reported attraction of  Chrysoperla carnea  species-complex to a ternary floral bait. The larvae of these lacewings are important generalist predators in agroecosystems, however adults are non-predatory, they feed on pollen, nectar or honeydew. Squalene, a plant originated compound was previously reported to be attractive to the nearctic  Chrysopa nigricornis . In the current study squalene was tested alone and in combination with the ternary bait in field experiments in Hungary. In our experiments, traps baited with squalene attracted predatory males of  Chrysopa formosa . Traps baited with squalene and the ternary floral bait attracted adults of both  C .  formosa  and  C .  carnea  complex lacewings. To our knowledge this is the first report of a bait combination attractive to both  Chrysoperla  and  Chrysopa  species. This finding is of special interest considering the remarkably different feeding habits of the adults of these lacewings. Potential perspectives in biological control are discussed.

New perspectives for simultaneous attraction of Chrysoperla and Chrysopa lacewing species for enhanced biological control (Neuroptera: Chrysopidae)