Carpenter Ant Camponotus sp.

Color:
Common species all black. Some species are rust-red and black.

Size:
The most common species is 1/4inch or larger. Any black ant in New Jersey which is black and larger than 1/4 inch is a carpenter ant. Some minor species are smaller.

Habits:
Usually nests outdoors in hollow trees or other cavities. Will hollow out wood but do not feed on it. Will nest indoors under insulation, wall cavities, and other natural voids. If wood is attacked to create a nest site, the wood is usually softened by water and decay fungi. Feed on other insects and honey dew from aphids. Will forage up to 100 yards for food. Red and black species seldom nest indoors.

Habitat:
Wooded areas. Usually nest outdoors but sometimes nest indoors in high moisture areas. May forage indoors for water during dry, summer periods.

Threat:
: May cause some damage during nest building but damage is usually restricted to a local area in a structure.

Prevention:
Do not store firewood against buildings. Cut tree limbs back so ants can’t reach the building overhead. Repair leaks to keep structural elements dry.