Hump-backed Fly vs Rat Flea

Side-by-side species comparison

Attribute Hump-backed Fly Rat Flea
Scientific Name Megaselia scalaris Xenopsylla brasiliensis
Order Diptera Siphonaptera
Family Phoridae Pulicidae
Size 2-3 mm 1.5-2.5 mm
Habitat Underground Underground
Diet Carrion Feeders Blood Feeders
Regions Worldwide Africa, South America, India
Conservation Least Concern Least Concern

Hump-backed Fly

A tiny scuttle fly with a distinctly humped thorax that breeds in an extraordinary range of organic matter. It is forensically important especially in enclosed burial sites.

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Did You Know?

It can colonize buried or concealed bodies that are inaccessible to larger blow flies.

Rat Flea

A tropical rat flea found across Africa and South America that can transmit plague. It is second to the oriental rat flea in importance as a plague vector.

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Did You Know?

Despite its name suggesting Brazilian origin, it is most commonly found on rats throughout sub-Saharan Africa.