Common cattle grub vs Kosrae Flying Fox

Hypoderma lineatum compared with Pteropus ualanus

Key Differences

• Common cattle grub is Extinct while Kosrae Flying Fox is Endangered.

Taxonomic Classification

Rank	Common cattle grub	Kosrae Flying Fox
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Diptera (Diptera)	Chiroptera (Bats)
Family	Oestridae	Pteropodidae (Fruit Bats)
Genus	Hypoderma	Pteropus (Flying Foxes)
Species	Hypoderma lineatum	Pteropus ualanus

Evolutionary Relationship

Common cattle grub and Kosrae Flying Fox share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common cattle grub

EX — Extinct

Kosrae Flying Fox

EN — Endangered

Physical Characteristics

Attribute	Common cattle grub	Kosrae Flying Fox
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common cattle grub

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Japan, Norway, Sweden, and United States.

Kosrae Flying Fox

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common cattle grub

<em>Hypoderma lineatum</em>, commonly known as the common cattle grub, is a parasitic fly species with documented occurrences in Japan, Norway, Sweden, and the United States. It typically inhabited terrestrial and freshwater environments, often associated with cattle and other large ungulates on which its larvae develop as subcutaneous parasites. The species is classified as Extinct on the IUCN Red List, indicating that it is no longer known to exist in the wild. Common cattle grub belongs to the genus <em>Hypoderma</em> within the family Oestridae. Adult flies do not feed and are short-lived, while larvae burrow under the skin of host animals, causing a condition known as hypodermosis or warble fly infestation. The decline and extinction of this species has been linked to widespread and highly effective veterinary treatment programs targeting warble fly larvae in cattle, which drastically reduced host populations and ultimately eliminated the species. Biological traits such as average lifespan, body length, and mass of this species remain poorly documented in the scientific literature.