It's unfortunately that time of year again when masses of red and black bugs begin swarming homes in southern Ontario in an effort to escape the cold. Boxelder bugs (Boisea trivittata), are native to North America and get their name from the boxelder tree, whose seeds are a food source for the nuisance pests. The boxelder bug can be identified by its almond-shaped body, which is black with red edges and approximately two centimetres long. Sightings of clustered boxelder bugs have been reported through the app in Cornwall, Ottawa, London, Windsor, Toronto, Amherstburg, and Kingston, just over the past week. While the massive clusters might look frightening, boxelder bugs rarely bite humans or cause any extensive damage to your property with their chewing.