Adults obtained from laboratory cultures of the insidious flower bug, Orius insidiosus (Say), and big-eyed bug, Geocoris punctipes (Say) were exposed to ten insecticides, including three newer insecticides with novel modes of action, using a residual insecticide bioassay. There was considerable variation in response among both species tested to the insecticides. Spinosad was less toxic than other insecticides tested on both species.