First report for the Neotropics of predation by the waterscorpion Ranatra (Hemiptera: Nepidae) on a member of Gerromorpha (Hemiptera)

The water scorpion Ranatra pittieri was observed preying on an adult of the water strider Eurygerris flavolineatus in a closed laboratory system. This is the first report for the Neotropics of the predation by a member of the infraorder Nepomorpha on a species of Gerromorpha.KEYWORDWaterscorpions, Heteroptera, Gerridae, Nepomorpha, Costa Rica, Central America