| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Hydrophilus | triangularis | 169 |
| 2 | Hydrophilus | ovatus | 117 |
| 3 | Hydrophilus | piceus | 27 |
| 4 | Hydrophilus | insularis | 13 |
| 5 | Hydrophilus | aculeatus | 9 |
| 6 | Hydrophilus | acuminatus | 4 |
| 7 | Hydrophilus | latipalpus | 4 |
| 8 | Hydrophilus | senegalensis | 3 |
| 9 | Hydrophilus | pistaceus | 3 |
| 10 | Hydrophilus | ensifer | 3 |
| 11 | Hydrophilus | aterrimus | 1 |
| 12 | Hydrophilus | brevispina | 1 |
| 13 | Hydrophilus | ater | 1 |