Parasitoid Wasps Prefer the Decaying Wood of Primary Forest (image) University of Turku Share Print E-Mail Caption Parasitoid wasps prefer the decaying wood of primary forest. The photo shows a male Epirhyssa ghesquierei rhyssine wasp and a decaying Uvariopsis congensis tree trunk. Credit Tapani Hopkins Usage Restrictions The photos are free to use in news concerning the topic. The photographer must be credited when using the photos. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.