Chestnut Pigmy vs Ecuadorian Sac-winged Bat

Stigmella samiatella compared with Balantiopteryx infusca

Key Differences

• Chestnut Pigmy is Least Concern while Ecuadorian Sac-winged Bat is Endangered.

Taxonomic Classification

Rank	Chestnut Pigmy	Ecuadorian Sac-winged Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Chiroptera (Bats)
Family	Nepticulidae	Emballonuridae
Genus	Stigmella	Balantiopteryx
Species	Stigmella samiatella	Balantiopteryx infusca

Evolutionary Relationship

Chestnut Pigmy and Ecuadorian Sac-winged Bat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Chestnut Pigmy

LC — Least Concern

Ecuadorian Sac-winged Bat

EN — Endangered

Physical Characteristics

Attribute	Chestnut Pigmy	Ecuadorian Sac-winged Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Ecuadorian Sac-winged Bat

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Colombia and Ecuador. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Chestnut Pigmy

The Chestnut Pigmy (Stigmella samiatella) is a species in the genus Stigmella. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.