Headfly vs Merriam’s Pocket Mouse

Hydrotaea irritans compared with Perognathus merriami

Key Differences

• Headfly is Not Evaluated while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Headfly	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Diptera (Diptera)	Rodentia (Rodents)
Family	Muscidae	Heteromyidae
Genus	Hydrotaea	Perognathus
Species	Hydrotaea irritans	Perognathus merriami

Evolutionary Relationship

Headfly and Merriam’s Pocket Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Headfly

NE — Not Evaluated

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Headfly	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Headfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, and Sweden.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.