Cryptolaemus montrouzieri - Mealybug Destroyer - 1,000 adultsShips Monday Thursday. Ships via Overnight methods. These Small, Predatory Beetles Feed On All Mealybug Species As Well As Aphids & Soft Scale! Cryptolaemus montrouzieri are effective predators for use as a biological control of mealybugs and other soft scale. These fast feeding, highly mobile ladybird beetles actively seek out mealybugs, consuming upwards of 250 mealybugs in a lifetime. Both larvae and adults are predatory and reduce the need for