Section I: Recognition and Identification of Phlebotomine Sand Flies
Under the 'scope: Is it a male or female?
If the tip of the abdomen looks something like this, then it is a male. The males have large terminalia (clasping structures) on the end of their abdomen. Not all male terminalia are as obvious as the examples below, however. You may need to look closely as they are often small and folded shut like a pocket knife, especially in newly emerged males.
Lutzomyia isovesperlilionis male genitalia