Lasiurus cinereus semotus

Hawaiian Hoary Bat

FWS Focus


Hawaiian hoary bat is an endangered endemic mammal found in the Hawaiian archipelago. Listed as a subspecies of the hoary bat (Lasiurus cinereus), this species is distributed across all of the major islands of the Hawaiian archipelago, including Kauai, Oahu, Lanai, Maui, Molokai, and Hawaii. Most recently, it has been observed visiting the island of Kahoolawe (KIRC 2017). The Hawaiian hoary bat is a distinctively marked bat with long narrow wings. Its fur is long and soft, dark brown to black at the base, followed by a broad band of cream color, then a slightly narrower band of mahogany brown, tipped with white. The outer three colors are visible from the surface, giving the fur a hoary appearance. The bat has a distinctive yellowish-brown collar under its chin and yellowish ears edged in black. Dense fur extends to the tip of its tail and just beyond the wrists along the undersides of its wings, with distinctive white patches on the shoulders and wrists. Its forearm measures 50-57 mm and this bat weighs 20-38 g. It can be distinguished from all others by its coloration and size. ??pe?ape?a roost alone or with dependent young in native and nonnative trees, typically more than 4.6 meters (15 feet) tall (Amlin and Siddiqi 2015)

Scientific Name

Lasiurus cinereus semotus
Common Name
Hawaiian Hoary Bat
FWS Category

Location in Taxonomic Tree

Identification Numbers



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