The duration of pre.ovipositign, egg stage, larval instars and pupal stage including adult life-span of Toxorhynchites spJendens (Wiedemann) and its predation over the larvae of Aedes aegypti have been reported. The average larval duration of the predator was 17.5 ISD 1.28 days, during this period average 256.64:1::SD 20.88 and 1735:1::SD 43.0 Ae. aeg…