Little Black Ant

Little Black Ant

The little black ant (Monomorium minimum) is a species of ant native to North America. It is a shiny black color, the workers about 1 to 2 mm long and the queens 4 to 5 mm long. It is a monomorphic species, with only one caste of worker, and polygyne, meaning a nest may have more than one queen. A colony is usually moderately sized with only a few thousand workers.

Little Black Ant

Little Black Ant. Image from Wikimedia Commons. Author: April Nobile.

Monomorium minimum is a scavengers that will consume anything from bird droppings to dead insects. Workers may forage in households, but nest in soil mounds. It also tends aphids such as the soybean aphid (Aphis glycines), harvesting honeydew.

During mid-summer the queens and males perform the nuptial flight, mating in midair. The males die shortly after. Each queen constructs a new nest, sheds its wings, and lays eggs. The development from egg to adult takes about a month.
In a laboratory setting queens were found to live about one year and workers about four months.

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