Tribolium castaneum (image) Indiana University Share Print E-Mail Caption The study was conducted in four varieties of the flour beetle Tribolium castaneum. Credit Michael J. Wade Usage Restrictions Credit author 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.