Predation Rate of Larval Corethrella Brakeleyi (Diptera: Chaoboridae) on Mosquito Larvae

R. E. McLaughlin

Abstract


Corethrella brakeleyi (Coquillett) larvae were collected from a small roadside pond in Alachua County, Florida, and offered 2nd instar Anopheles quadrimaculatus larvae in cups in a laboratory feeding test. The average number of mosquito larvae consumed/day by the 65 predator larvae ranged from 3.00 to 9.32 during the 19 days of the feeding test. The average total number of mosquito larvae consumed/C. brakeleyi larva was 76.9. The population of C. brakeleyi larvae in the pond, sampled by the standard mosquito larva dipper method between 3 February and 14 November 1989, ranged between 0.62 and 8.3 larvae/dip.

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