Asian lady beetles are attracted to illuminated surfaces, and they tend to congregate on the sunnier, southwest sides of buildings illuminated by afternoon sun. They are also attracted to soft-bodied crop and garden pests like aphids. Here are some additional factors that attract Asian lady beetles:

• Light: Asian lady beetles are attracted to light, especially during the fall when they are looking for a place to overwinter.

• Warmth: In the first warm days of early spring, Asian lady beetles are often seen congregating on the sunny sides of buildings as they emerge from their overwintering sites.

• Scent: If Asian lady beetles find a favorite overwintering site, they can produce an attractant scent that draws more beetles to the area.

It is important to note that Asian lady beetles generally do not injure humans and are mainly a nuisance.