The nine-spotted ladybug was considered so common, charismatic and crop-friendly that it was adopted as New York's official state insect in 1989. As it turns out, the species may have disappeared from ...

“There are hundreds of them,” my friends in Belfast told me last week. “Thousands.” They pointed to several tiny buglike silhouettes meandering across the living room window and in the curtains.

Ladybugs are not just pretty little insects; they’re also great for plant life. The beetles eat insects such as aphids that attack plants and crops. On Friday, in honor of Earth Day weekend, the ...

If you live in the U.S. or Europe and ladybugs lurked inside your house last winter, loitering on your windowsills or walls through the cold season, they were probably members of an invasive species ...