Record of Cybocephalus sp. (Coleoptera: Nitidulidae) preying on pest species of diaspididae (Hemiptera), in the state of Alagoas, Brazil

IRACILDA M.M. LIMA About the author

Specimens of Cybocephalus sp. were collected preying on Aspidiotus destructor (Signoret) infesting coconut trees (Dwarf cultivar) and on Diaspis echinocacti (Bouché) present on Opuntia ficus-indica Mill. and Nopalea cochenillifera (L.) Lyons (Cactaceae). In the later case the nitidulid was associated with another predator: Coccidophilus citricola (Brèthes) (Coleoptera: Coccinellidae). The eggs were laid inside the scale of the diaspidid (one egg per scale); all life stages were detected. No sexual dimorphism was observed, and the natural sex ratio was 0.52 which represents a sexual proportion of 1.1 females : 1 male. Cybocephalus specimens were also collected preying on coccids on Alamanda cathartica L. (Apocynaceae) and on Morus alba L. (Moraceae).

Insecta; biological control agents; Aspidiotus destructor; Diaspis echinocacti

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