Cluster Bat vs Common Drill

Myotis sodalis compared with Dichrorampha petiverella

Key Differences

• Cluster Bat is Near Threatened while Common Drill is Least Concern.

Taxonomic Classification

Rank	Cluster Bat	Common Drill
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Chiroptera (Bats)	Lepidoptera (Butterflies & Moths)
Family	Vespertilionidae	Tortricidae
Genus	Myotis	Dichrorampha
Species	Myotis sodalis	Dichrorampha petiverella

Evolutionary Relationship

Cluster Bat and Common Drill share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Cluster Bat

NT — Near Threatened

Common Drill

LC — Least Concern

Physical Characteristics

Attribute	Cluster Bat	Common Drill
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cluster Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Drill

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Cluster Bat

Myotis sodalis, the Indiana bat or cluster bat, is a medium-sized insectivorous bat in the family Vespertilionidae endemic to the eastern United States. It is one of the most endangered bats in North America, listed as Endangered under the U.S. Endangered Species Act and classified as Near Threatened by the IUCN. The species is named for its behavior of clustering in extremely dense hibernation groups—sometimes thousands of bats per square meter—in specific limestone caves and mines during winter. These few critical hibernacula make the species extremely vulnerable to disturbance and disease. Since 2007, Indiana bats have suffered severe mortality from white-nose syndrome, a fungal disease caused by Pseudogymnoascus destructans that disrupts hibernation and causes mass starvation. During summer, Indiana bats roost under loose bark of dead trees and forage for insects over forested landscapes and riparian areas. Foraging individuals consume moths, beetles, and flying insects. Conservation efforts include cave gate protection, white-nose syndrome research, and summer habitat management on public and private lands across the eastern US.

Common Drill

<em>Dichrorampha petiverella</em>, the common drill, is a moth in the family Tortricidae. This species is distributed across Belgium, Denmark, Norway, Sweden, and the United States, typically inhabiting terrestrial and freshwater environments including meadows, grasslands, and woodland margins. The common drill is a small, cryptically patterned tortricid moth, often with brownish or grayish wing markings that provide camouflage against bark and plant surfaces. Adults are generally nocturnal and are often attracted to light. Larvae of <em>Dichrorampha petiverella</em> are typically root-boring, feeding internally within the roots of herbaceous plants, particularly members of the family Asteraceae. This feeding habit can occasionally cause economic damage to cultivated plants but is generally considered minor in natural ecosystems. The species is assessed as Least Concern, reflecting stable populations across its range. Biological traits of this moth beyond those documented here remain relatively poorly detailed in the broader scientific literature.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States