- Genus of hard-bodied ticks
| Species (Common Name[s]) | Distribution | Diseases Transmitted |
|---|---|---|
| Ixodes scapularis (black-legged tick, deer tick) | eastern US and southern Ontario | Lyme disease, babesiosis, anaplasmosis, ehrliciosis, Powassan virus |
| Ixodes pacificus (western black-legged tick) | Pacific coast of US and Canada | Lyme disease, anaplasmosis |
| Ixodes persulcatus | tick-borne encephalitis | |
| Ixodes ovatus | Japan | tick-borne encephalitis |
| Ixodes ricinus | Eastern Europe and Scandinavia | tick-borne encephalitis |
