Lasiurini

Lasiurini is a taxonomic tribe within the subfamily Vespertilioninae, which is part of the family Vespertilionidae (vesper bats). This tribe encompasses a group of bat species commonly referred to as hairy-tailed bats.

Characteristics:

Lasiurini bats are generally characterized by their distinctive fur, particularly the dense, hairy covering on their tails, from which their common name derives. They are typically medium-sized bats with a relatively broad wing shape, suggesting adaptation for slower flight and maneuverability. Their coloration often includes shades of red, brown, or gray, providing camouflage within their natural habitats.

Distribution and Habitat:

Bats belonging to the tribe Lasiurini are found primarily in the Americas, ranging from North America through Central America and into South America. They typically inhabit forested areas, utilizing trees as roosting sites. Some species are migratory, undertaking long-distance flights between breeding and overwintering areas.

Genera:

The tribe Lasiurini typically includes the following genera:

• Lasiurus (Hairy-tailed Bats): This is the primary genus within the tribe, containing the majority of species.
• Aeorestes: Some classifications recognize this as a distinct genus, separate from Lasiurus, although the distinction is debated. Aeorestes species are often referred to as Hoary Bats.

Ecology and Behavior:

Lasiurini bats are primarily insectivorous, feeding on a variety of flying insects caught in flight. They are typically nocturnal and emerge at dusk to forage. Roosting behavior varies among species, with some utilizing tree foliage and others favoring tree cavities or crevices. Migratory species may exhibit complex social behaviors during migration.

Conservation Status:

The conservation status of Lasiurini bats varies depending on the species. Some species are relatively common and widespread, while others face threats from habitat loss, pesticide use, and wind turbine mortality. Further research is often needed to fully assess the population trends and conservation needs of specific Lasiurini species.