What do multicolored Asian lady beetles look like?
- Size: 1/3-inch
- Color: Yellowish-orange to red coloring, variable black spots on the back (may be faint or missing), a black "W" marking on the thorax
- Body Structure: Head, thorax, and abdomen
Characteristics of multicolored Asian lady beetles
Like boxelder bugs and other occasional invaders, multicolored Asian lady beetles (MALB) are insects primarily found outdoors, but may enter homes by accident or when searching for overwintering sites.
Multicolored Asian lady beetles have four life stages: egg, larva, pupa, and adult. The eggs that lady beetles lay on host plants in early spring hatch in three to five days and then larvae start feeding on aphids and other soft-bodied arthropods they find on plants. Larvae molt four times, becoming larger after each molt and entering the immobile pupal stage after the last one. After several days adult beetles emerge from the pupal case.
When are multicolored asian lady beetles most active?
Where are multicolored Asian lady beetles commonly found?
During the spring and summer months, these plant-feeding pests that attack a variety of trees, ornamentals, and agricultural crops as they search for food. Once fall arrives, the MALB population will prepare to overwinter and start seeking out potential spots. During this time, it's very common to find these pests congregating on sunny, exposed surfaces or slipping through cracks, gaps, and openings on the exterior of homes.
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