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Registro da Ocorrencia de cybocephalus sp. (coleoptera: nitidulidae) predando especies-praga de diaspididae (hemiptera), no estado de alagoas

Author:
Lima, I.M.M.
Source:
Neotropical entomology 2002 v.31 no.1 pp. 157-159
ISSN:
1519-566X
Subject:
coconuts, Opuntia ficus-indica, Opuntia, Morus alba, Apocynaceae, Aspidiotus destructor, Diaspididae, insect pests, Cybocephalus, Diaspis, insect control, biological control agents, biological control, oviposition, sexual dimorphism, sex ratio, predators, males, females, Diaspis echinocacti, Brazil
Abstract:
Specimens of Cybocephalus sp. were collected preying on Aspidiotus destructor (Signoret) infesting coconut trees (Dwarf cultivar) and on Diaspis echinocacti (Bouche) 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 (Brethes) (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).
Agid:
1465383