L. gomezi Male (image) Smithsonian Tropical Research Institute Share Print E-Mail Caption Traditionally, entomologists depended on characters like this male terminal segment to distinquish sand fly species. Because females (the vectoring sex) have less distinquishing morphological characters, this survey used the COI barcoding gene to confirm species identities. Credit Don Windsor Usage Restrictions Credit: STRI 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.