Fifteen-spotted Lady Beetle © mothvet (iNaturalist)

Fifteen-spotted Lady Beetle © Jimmy Dee

Fifteen-spotted Lady Beetle © Tom Murray

The Fifteen-spotted Lady Beetle is native to North America. Its colors can range from light grey to dark purple with black spots. This species feeds on aphids and is found primarily in forested areas from April to July.

Status

Native

Ranked as Apparently Secure in Ontario and New Brunswick; and as Vulnerable in Indiana.

Last Seen

2018

Fun Fact

Fifteen-spotted Lady Beetles darken with age, to the point where their spots become almost invisible.

Identification

The Fifteen-spotted Lady Beetle is 7.2 to 9.5 mm in length, and appears as a “rounded oval” in shape. Like other species in the Anatis genus, it darkens with age, with the spots sometimes no longer being distinguishable from the rest of the elytra at the end of its life because it is so dark.

Habitat

Arboreal. Can sometimes be found in aggregations on beaches.

General Range

West to Colorado, south to Texas, east to the Atlantic Ocean, north to Manitoba.

Food

Feeds on aphids, scale insects, mites, and other small insects on deciduous and coniferous trees

Life History

From BugGuide data, the Fifteen-spotted Lady Beetle is most abundant from April to July. Fifteen-spotted Lady Beetles have one generation per year. Little information is available on Fifteen-spotted Lady Beetles.

More Information

You can find more information about Fifteen-spotted Lady Beetles using the following links:

Vermont Distribution

Visit the iNaturalist Observation Map and Occurrence Records to find out where Fifteen-spotted Lady Beetles have been seen in Vermont.