Flea features
| Ctenidia | Thorax | Hind Tibia | |
|---|---|---|---|
| Genal – below the eye [moustache] |
Pronotal – at dorsal head/thorax interface [collar] |
 |
|
Horizontal
|
Vertical
|
Reduced thorax
|
6 notches
|
Oblique
|
No ctenidia
|
Thorax not reduced
|
8 notches
|