Heliconius Butterfly with both the Dennis and Ray Pattern (image) University of Cambridge Share Print E-Mail Caption One of the Heliconius butterfly species, melpomene aglaope, with both the dennis forewing red patches and ray hindwing red pattern is shown. Research shows these two red color patterns are controlled by separate genetic switches that arose in completely different species. Credit Jiggins group, Cambridge. Usage Restrictions pls credit 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.