The value of Colombian phlebotomine eggs for species determination was studied with a scanning electron microscope. The species diversity and medical importance of the verrucarum group were the bases to select Lutzomyia youngi, Lutzomyia evansi, Lutzomyia columbiana and Lutzomyia longijlocosa. The egg surface was poligonal. Lutzomyia youngi, and Lutzomyia columbiana had pentagonal or hexagonal pattems; Lutzomyia evansi elongated polygons and Lutzomyia longijlocosa irregular polygonal sculpturing, frequently rectangular. Egg scanning electron microscopy is reliable to identify species of the verrucarum group.
Keywords: electronic microscopy, lutzomyia, verrucarum group, sculpturing models, poligonal model