It's also a good idea to avoid excessive watering for a few days prior to the event so guests don't sink into squishy ground. If it is likely that some women will be in high heels, arrange the area so that part of it covers a solid area, such as a sidewalk or parking lot. An alternative would be to lay out a portable dance floor, just to be sure the ladies have something solid to stand on. If insects could be a problem, have the area sprayed six hours before the event. If this is not feasible, ask the host to advise the guests not to wear perfume, which attracts insects.
Perfumes are flower based and attract all kinds of winged insects, including bees and wasps.
Bright colors also attract bees. Likewise, while it may be nice to hold the event in the middle of a flower garden, remember that bugs and bees find flowers attractive also. Plan your party so that guests can see and enjoy the flowers without being close enough to upset stinging creatures. Mosquitos love warm, moist, moving bodies. Guests that are warm, perspiring and wearing perfume are the best targets.