Black Blow Fly vs New Zealand Sandfly

Side-by-side species comparison

Attribute Black Blow Fly New Zealand Sandfly
Scientific Name Phormia regina Austrosimulium ungulatum
Order Diptera Diptera
Family Calliphoridae Simuliidae
Size 9-13 mm 2-4 mm
Habitat Farmland Rivers & Streams
Diet Carrion Feeders Blood Feeders
Regions North America, Europe New Zealand, especially South Island
Conservation Least Concern Least Concern

Black Blow Fly

A dark metallic blow fly that is among the first insects to colonize a corpse. It is a key species in forensic entomology across North America.

💡

Did You Know?

It can detect a dead body from over a mile away using chemoreceptors on its antennae.

New Zealand Sandfly

A small black fly endemic to New Zealand that inflicts painful bites, particularly notorious in the South Island's West Coast and Fiordland regions. Despite being called sandflies locally, they are actually black flies in the family Simuliidae. They breed in fast-flowing rivers and streams.

💡

Did You Know?

Maori legend says the sandfly was created by the goddess Hine-nui-te-po to prevent humans from lingering too long in the beautiful Fiordlands.