Predation by solenopsis invicta buren (hymenoptera

Formicidae) on eggs, larvae, and pupae of aedes albopictus skuse (Diptera: Culicidae)

R. E. Duhrkopf, R. S. Baldridge, O. L. Crino, J. Dillen

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Red imported fire ant, Solenopsis invicta Buren, was studied to determine if it preys on eggs, fourth-instar larvae, and pupae of the Asian tiger mosquito, Aedes albopictus (Skuse), under laboratory and field conditions. Fire ant workers removed eggs, larvae, and pupae from dampened filter paper and larvae and pupae from standing water. In experiments for a 12-hour period during daytime hours in the field, as many as 71.1% of the eggs were removed (mean = 15.8%, n = 50), while during the same period during nighttime hours, as many as 78.2% of the eggs were removed (mean = 16.1%, n = 50). As many as 97.2% of the eggs were removed during a 24-hour period, (mean = 40.8%, n = 50), and as many as 96.8% of the eggs were removed during a 48-hour period (mean = 30.8%, n = 50). Under field conditions, red imported fire ants removed some larvae and pupae from 96% of the experiments (n = 25, range = 60-100%) with larvae and pupae exposed on dampened filter paper for 12 hours and from 60% of experiments (n = 25, range = 10-100%) with larvae and pupae in standing water for 24 hours. In the laboratory (n = 20), 100% of Asian tiger mosquito larvae and pupae were removed from dampened filter paper within 60 minutes, 45% of larvae were removed from standing water within 24 hours following a 48-hour period of food and water deprivation (n = 5), and 100% of all larvae were removed from standing water within 48 hours without 48 hours of food and water deprivation (n = 3).

Original languageEnglish
Pages (from-to)119-124
Number of pages6
JournalSouthwestern Entomologist
Issue number2
Publication statusPublished - Jun 2011


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