Four-spotted Spurleg Lady Beetle © bob15noble (iNaturalist)

Four-spotted Spurleg Lady Beetle © John Abbott

Four-spotted Spurleg Lady Beetle © Alain Hogue

The Four-spotted Spurleg Lady Beetle is native to North America. Two subspecies exist: Brachiacantha quadripunctata quadripunctata and Brachiacantha quadripunctata flavifrons. Both subspecies look very similar: black wing covers with four red spots (two near their pronotum and two at their rear). This species was found in Vermont in 2020 for the first time since 1976.

Status

Native

Not ranked in the United States or in Canada

Last Seen

2020

Fun Fact

The Four-spotted Spurleg Lady Beetle’s species name (quadripunctata) means “four-pointed”, referring to their four spots.

Identification

The Four-spotted Spurleg Lady Beetle is 2.5 to 4.4 mm in length. Four-spotted Spurleg Lady Beetles are dimorphic – males and females can be differentiated by distinctions on the head, pronotum and elytra.

Habitat

Arboreal – usually recorded on trees or along forest edges. Has been collected on Maple trees infested with plant lice.

General Range

In Vermont, we have the subspecies Brachiacantha quadripunctata quadripunctata. Ranges of the two subspecies do not overlap.

Food

Likely aphids, scale insects, and other small insects. Larvae feed in ant nests.

Life History

One study found the highest capture rate of Four-spotted Spurleg Lady Beetles to be in May and June, with a second slight increase in the number found in the fall, before hibernation. Larvae have been found in ant nests, and seem to be associated with them. Little information is available on this species.

More Information

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

Vermont Distribution

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