The fourth instar larva of Lutzomyia (Lutzomyia) longipalpis (Phlebotomidae: Phlebotominae) was studied by scanning electron microscope. Based on three-dimensional observations, the fine structure and setal position (using of setal numeration) of the larva are presented.
Lutzomyia longipalpis; fourth instar; larva; morphology; chaetotaxy; scanning electron microscopy