Mosquito
Mosquitoes of the genus "Toxorhynchites" never drink blood. This genus includes the largest extant mosquitoes, the larvae of which prey on the larvae of other mosquitoes. These mosquito eaters have been used in the past as mosquito control agents, with varying success.
List of largest insects
The largest species of this diverse, huge order are the giant water bugs "Lethocerus grandis" and "L. maximus". These can surpass a length of , although they are more slender and less heavy than most other insects of this size (principally the huge beetles).