none Entered Attractiveness of spiders and other insect predators and parasitoids to potentially beneficial flowering plants was investigated in an agricultural field cultivated organically at Kiire, Kagoshima City, Japan, in 2013 and 2014. In 2013, five plant species, Salvia farinacea Benth. (mealy cup sage), Mentha spicata L. (spearmint), Foeniculum vulgare Mill. (fennel), Fagopyrum esculentum Moench (buckwheat) and Anethum graveolens L. (dill) were compared for their attractiveness to true spiders using a direct count method. S. farinacea attracted significant numbers of crab spiders (Thomisidae) and M. spicata attracted tangle-web spiders (Theridiidae), while the other flowering plants attracted fewer numbers of spiders. In 2014, another set of five flowering plant species, Salvia farinacea Benth., Matricaria recutita L. (chamomile), Achillea millefolium L. (yarrow), Petunia atkinsiana D. Don ex Loudon (petunia), and Alyssum maritimum (L.) Desv. (sweet alyssum) were compared for their attractiveness to some insect predators and parasitoids; crab spiders (Thomisidae), ichneumon wasps (Ichneumonoidea), chalcidoid wasps (Chalcidoidea), predatory bugs (Anthocoridae), and hoverflies (Syrphidae). Samples were collected weekly from each plant species using a sweeping net. Crab spiders and predatory bugs clearly preferred S. farinacea compared to other plants in this study, whereas chalcidoid wasps preferred S. farinacea and A. Millefolium. It was concluded that S. farinacea is a superior insectary plant as it attracted the highest numbers of predators and parasitoids; including crab spiders, predatory bugs and chalcidoid wasps. This study may be the first to investigate the attractiveness of S. farinacea and M. spicata to thomisid and theridiid spiders in an agricultural field. 2015