Three-banded Lady Beetle © Erika Mitchell

Three-banded Lady Beetle, © Eric Knopf

The Three-banded Lady Beetle is native to North America. There are three subspecies: Coccinella trifasciata perplexa, Coccinella trifasciata subversa, Coccinella trifasciata trifasciata. It’s red to reddish-brown in color with three black bands across its wing covers.

Status

Native

Globally, the status of the Three-Banded Lady Beetle is considered to be Secure (very low risk of extinction or population collapse). However, the Three-banded Lady Beetle is listed as Vulnerable  (moderate risk of extinction or population collapse) in Manitoba Province and Imperiled (high risk of extinction or population collapse) in New York State.

The decline of Three-Banded Lady Beetles in parts of their range is thought to be caused by several factors. Non-native lady beetles likely are predators of the Three-banded Lady Beetle and outcompete them for food and habitat. This, coupled with habitat loss (decline in farming and open habitats associated with them) along with pesticide use are likely causes of decline.

Last Seen

2020

Fun Fact

The Three-banded Lady Beetle is considered a Species of Greatest Conservation Need in New York State.

Identification

The Three-banded Lady Beetle is a small beetle, between 4 and 5 mm in length.

Habitat

Often found in fields, meadows, gardens, yards, and in brambles or shrubby vegetation. Seems to have a strong preference for alfalfa.

General Range

Food

Mostly soft-bodied insects, such as aphids. Three-banded Lady Beetles will also eat pollen.

Life Cycle

Three-banded Lady Beetles can be found from April to October in Vermont. They seem to be easiest to find in early summer, before it gets too dry. More information is needed about the life history, but it appears they follow the usual lady beetle life history: egg, several instar phases of the larvae, pupae, and adult.

More Information

You can find more information about Three-banded Lady Beetles using the following links:

Vermont Distribution

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