AT A GLANCE
- Common Name: Painted Bat
- Scientific Name: Kerivoula picta
- Category: Mammals
- Subcategory: Bats
- Range: South and Southeast Asia, from India and Sri Lanka east through Bangladesh, Myanmar, Thailand, Cambodia, Vietnam, and southern China to Peninsular Malaysia and Indonesia (Sumatra, Java, Moluccas)
- Habitat Type: Dry deciduous forests, secondary brushlands, banana and plantain plantations, orchards, and agricultural groves at low to moderate elevations
- IUCN Red List Status: Near Threatened
- Lifespan: 6 to 10 years
- Diet: Insectivorous (aerial hawking for small nocturnal moths, flies, winged ants, termites, and small beetles)
- Average Size/Weight: Head-and-body length 3.5 to 5.5 cm; forearm length 3.1 to 3.9 cm; wingspan 18 to 24 cm; weight 4 to 6 g
- Key Defining Feature: Vivid, butterfly-like microbat clothed in fiery orange or scarlet woolly fur, with black wing membranes strikingly patterned with bright orange along the digits and arms
Overview
The Painted Bat (Kerivoula picta), also known as the Painted Woolly Bat, is one of the most visually extraordinary and vividly colored flying mammals on Earth. Belonging to the vespertilionid family Vespertilionidae, this tiny microbat defies the typical drab grey and brown hues of its kin with a blazing coat of bright fiery orange, bright scarlet, or pumpkin-orange fur. Its wings are equally breathtaking, featuring translucent jet-black flight membranes interrupted by bold, contrasting orange stripes tracing each elongated finger bone, giving it the uncanny appearance of a colorful monarch butterfly or fallen autumnal leaf when resting.
Biology and Physical Characteristics
Kerivoula picta is a delicate, diminutive bat with long, silky, distinctly woolly pelage covering its head, body, and even parts of the interfemoral membrane. Its muzzle is pointed with a delicate pink nose pad, surrounded by small dark eyes and large, funnel-shaped translucent ears equipped with long, slender tragus blades that enhance high-frequency biosonar processing. Its wing coloration is a masterclass in disruptive camouflage: the dark black patches break up its bodily silhouette against foliage, while the bright orange sections match the yellowing leaves and withered bracts of tropical trees. It possesses thirty-eight small, needle-sharp teeth adapted for puncturing the hard chitinous exoskeletons of small flying insects.
Behavior and Ecology
Unlike cave-dwelling bats that roost in massive colonial swarms, the Painted Bat is solitary or lives in small family groups of two to six individuals. By day, it roosts in remarkably exposed, arboreal shelters—tucked inside dead curled banana leaves, hanging beneath weaver bird nests, under thatched roofs of rural huts, or suspended amid dry plantain foliage. Its bizarre bright coloration provides near-invisible cryptic camouflage against dead yellow and orange leaves swaying in the breeze. Emerging late at dusk, it possesses an erratic, fluttering, moth-like flight style, foraging close to vegetation and snatching small aerial insects with agile maneuvers through dense undergrowth.
Conservation and Human Impact
The Painted Bat is classified as Near Threatened on the IUCN Red List. Although broadly distributed across South and Southeast Asia, it is nowhere common and is experiencing steady population declines. Major threats include habitat loss from intensive plantation agriculture, widespread agricultural pesticide spraying that decimates insect prey, and increasing targeted collection for the commercial novelty curiosity and taxidermy pet trade, where dried specimens are sold as framed decorative items.
Interesting Factoid
The Painted Bat is often mistaken for a giant butterfly when fluttering at dusk, and its bright orange-and-black wings allow it to hide in plain sight by perfectly mimicking a dried, curled banana leaf.