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The adventive arrival of biological control agents circumvents the regulatory process by introducing exotic species to control invasive pests and is generally followed by post hoc risk evaluation. The bean plataspid,    Megacopta   cribraria    (Fabricius) (  Hemiptera  :   Plataspidae  ), is an invasive pest of leguminous crops in the south-eastern United States that was eventually followed by two parasitoid wasps from its range in the eastern hemisphere,    Paratelenomus   saccharalis    (Dodd) (  Scelionidae  ) and    Ooencyrtus   nezarae    Ishii (  Encyrtidae  ). In North Central Florida, sentinel egg masses, intended to capture    Paratelenomus   saccharalis   , instead yielded    Ooencyrtus   nezarae   , which was previously known only from Alabama (Ademokoya et al. 2018). Two generations of    O.   nezarae    were subsequently reared in the laboratory. COI sequences from the Florida population of    O.   nezarae    differed by 1.3% from the Alabama population and the presence of a different haplotype suggests the possibility of a separate introduction. Laboratory parasitism rates, sex ratios, morphology, molecular diagnosis and implications for agriculture are discussed.

A fortuitous find: a unique haplotype of Ooencyrtus nezarae Ishii ( Encyrtidae : Encyrtinae ) discovered in Florida