Abstract
The biology of the earwig,Doru taeniatum (Dohrn), a reported predator ofSpodoptera frugiperda (J. E. Smith), was studied in the laboratory.D. taeniatum under laboratory conditions was easily reared, mated readily and females tended eggs and first instar nymphs.D. taeniatum developed through 4 nymphal instars and reached imago in approximately 30 days. It is an omnivore in the laboratory and capable of developing and reproduction on plant pollen alone, and on Lepidoptera eggs (Sitotroga carealella) (Olivier) alone. Immatures developed most rapidly and females were most fecund when fed either a combination ofS. cereallea eggs and pollen, orS. cerealella eggs alone.
Résumé
La biologie du perce oreille,Doru taeniatum (Dohrn) prédateur signalé deSpodoptera frugiperda (J. E. Smith) a été étudiée au laboratoire. Dans les conditions du laboratoire,D. taeniatum s'élevait facilement, s'accouplait rapidement et les ♂ ♂ prenaient soin des œufs et des premiers stades larvaires.D. taeniatum passait par 4 stades larvaires et atteignait le stade adulte en 30 jours environ. C'est un omnivore au laboratoire, capable de se développer et de se reproduire soit sur le pollen des plantes seul, soit sur les œufs de Lépidoptères (Sitotroga cerealella) seuls. Les stades immatures se développaient le plus vite et les ♂ ♂ étaient les plus fécondes quand la nourriture était soit une combinaison d'œufs deS. cerealella et de pollen, soit des œufs deS. cerealella seuls.
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Approved as TA 20744 by Director, Texas Agricultural Experiment Station.
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Jones, R.W., Gilstrap, F.E. & Andrews, K.L. Biology and life tables for the predaceous earwig,Doru taeniatum [Derm.: Forficulidae]. Entomophaga 33, 43–54 (1988). https://doi.org/10.1007/BF02372312
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DOI: https://doi.org/10.1007/BF02372312