Screwworm Fly vs Asian Lady Beetle (Harlequin)
Side-by-side species comparison
| Attribute | Screwworm Fly | Asian Lady Beetle (Harlequin) |
|---|---|---|
| Scientific Name | Cochliomyia hominivorax | Harmonia yedoensis |
| Order | Diptera | Coleoptera |
| Family | Calliphoridae | Coccinellidae |
| Size | 8-12 mm | 6-9 mm |
| Habitat | Forests | Forests |
| Diet | Blood Feeders | Omnivores |
| Regions | Central America, South America, Caribbean | East Asia, Japan |
| Conservation | Least Concern | Least Concern |
Screwworm Fly
A devastating parasitic fly whose larvae feed on living tissue of warm-blooded animals. It was eradicated from North America using the sterile insect technique.
Did You Know?
The sterile male release program that eradicated it from the US is considered one of the greatest triumphs in pest control history.
Asian Lady Beetle (Harlequin)
A large ladybug native to Japan, closely related to the invasive Asian lady beetle. Found in forest canopies where it feeds on aphids. Distinguished by its slightly more elongated body shape.
Did You Know?
Unlike its more famous relative Harmonia axyridis, this species has stayed in its native range and has not become a worldwide invasive pest.