Thatching ants

Description:

Most species of thatching ants are bicolored red and black (Fig. 2). A few are all black. They are medium to large ants, averaging from 4–8 mm (3 /16–5 /16 inch) long, with a notch or depression on the top of the thorax when viewed from the side.

Habitat:

This small colony of thatching ants was found hibernating under a rock on the edge of a road.