| # | Scientific name | Vernacular name | Local names | State/province | Waterbody | Date added | Contributor |
|---|---|---|---|---|---|---|---|
| 1 | Naucoridae | Creeping water bugs | Not given | Simiyu | River | Leach, 1815 | |
| 2 | Corixidae | Water boatman | Not given | Simiyu | River | Leach,1815 | |
| 3 | Leptophlebiidae | Prong-gilled mayflies | Not given | Simiyu | River | ||
| 4 | Caenidae | Small squaregilled Mayflies | Not given | Simiyu | River | ||
| 5 | Baetidae | Small minnow flies | Not given | Simiyu | River | Leach, 1815 | |
| 6 | Naucoridae | Creeping water bugs | Not given | Simiyu | River | Leach, 1815 | |
| 7 | Belostomatidae | Giant water bugs | Not given | Simiyu | River | Leach,1815 | |
| 8 | Caenidae | Small squaregilled Mayflies | Not given | Simiyu | River | ||
| 9 | Oligochaeta | Earthworms� | Not given | Simiyu | River | Brinkhurst &Jamieson, 1971 | |
| 10 | Culicidae | Biting Flies | Not given | Simiyu | River | Meigen, 1818 |