Boisea

Boisea is a genus of scentless plant bugs in the family Rhopalidae. These insects are commonly found in North America and are known for their association with boxelder trees ( Acer negundo) and other Acer species.

Description: Boisea bugs are typically small to medium-sized insects, ranging from 11 to 14 millimeters in length. They are characterized by their elongated, oval shape and a mostly dark brown or black coloration, often with reddish-orange markings on the wings and abdomen. Nymphs (immature stages) can vary in color and pattern.

Distribution and Habitat: The most well-known species, Boisea trivittata (the boxelder bug), is widely distributed throughout North America. They are commonly found wherever boxelder trees grow, including urban environments, forests, and agricultural areas. Other Boisea species have more restricted geographic ranges.

Life Cycle and Behavior: Boisea bugs have a hemimetabolous life cycle, meaning they undergo incomplete metamorphosis. Eggs are laid on host plants in the spring. Nymphs hatch and go through several molts before becoming adults. Boxelder bugs, in particular, are known for their tendency to congregate in large numbers during the fall, seeking shelter in buildings and other structures to overwinter. This behavior can be a nuisance to homeowners.

Diet: Boisea bugs feed primarily on the sap of boxelder trees and other Acer species. They can also feed on seeds and fruits. While their feeding activity can cause some minor damage to trees, they are generally not considered to be significant pests of trees or crops.

Ecological Role: Boisea bugs serve as a food source for various predators, including birds, spiders, and other insects. They also play a role in nutrient cycling and seed dispersal within their ecosystems.

Species: Some notable species in the genus Boisea include:

• Boisea trivittata (Say, 1825) - Boxelder bug