Philanthus basilaris (image) Max Planck Institute for Chemical Ecology Share Print E-Mail Caption A female of the beewolf species Philanthus basilaris at its nest entrance, Utah, USA. Three genera of these solitary wasps cultivate defensive Streptomyces symbionts that protect the wasps' offspring from pathogenic fungi by producing a mixture of up to 45 different antibiotic compounds. Credit Martin Kaltenpoth, Johannes Gutenberg University (JGU), Mainz; Germany Usage Restrictions None 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.