A transatlantic caterpillar

Abstract

Background: Saddleback caterpillar sting has been very rarely reported in European countries. We report a French case of a stung toddler.

Case: A 2-year-old girl was brought to the pediatric emergency department after being stung by a caterpillar in a furniture store. The emergency department physical examination revealed an inflammatory edema of the stung finger, normal vital signs, and no fever. Three hours after presentation, she was discharged with local ointment prescription. The caterpillar brought in by the parents was unusual compared to common French caterpillar species. The regional poison center was unable to identify it. With the help of the Internet, we succeeded in its identification as a saddleback caterpillar. Tracing its transatlantic importation was the most difficult.

Conclusions: Saddleback caterpillars can be imported to France and carried across the Atlantic Ocean on house or garden plants especially Areca trees. French garden store owners should be informed about this risk and should check and treat host plants (especially Areca trees) at the arrival time.