Bald-faced hornet coloring differentiates it from its mostly black and yellow genus mates. Baldfaced hornets are distinguished from other yellowjackets by their white and black coloring. It has a white or "baldfaced" head, which is the source of its colloquial name. These wasps also have three white stripes at the end of their bodies. They are notably larger than other species of "Dolichovespula", as adults average about in length. Queen and worker wasps have similar morphologies. However, workers are covered by small hairs while the queen remains hairless. Queens are always larger than workers in their colonies, though size distributions can vary
Bald-faced hornet temporal specifics vary depending on location. In Washington State, nest initiation occurs during mid-May, and workers emerge during mid-June. Large cell building starts during mid-July, and the first queens emerge during mid-August. The colony terminates during mid-September, for a life cycle of approximately four months (122 days). Lower latitudes correlate with longer life cycles. In Indiana, colonies were observed to begin in early May and terminate in late September, a life cycle of five months (153 days), and in Central California nests are initiated as early as the end of March. These nests survive between 155 and 170 days. Active