%0 Journal Article %T The First Instar Larva of Lutzomyia longipalpis (Diptera: Phlebotomidae) %A Leite Ant£¿nio Cesar Rios %A Williams Paul %J Mem¨®rias do Instituto Oswaldo Cruz %D 1997 %I Instituto Oswaldo Cruz, Minist¨¦rio da Sa¨²de %X The morphology and chaetotaxy of the first instar larva of Lutzomyia (Lutzomyia) longipalpis are described based on observations made under scanning electron microscope. Because three-dimensional images were studied, some terminological changes are proposed to give a more realistic description of the positions of the setae. On the larval body, the pairs of setae have the following number: 9 on the head, 12 on the prothorax, 8 on the meso- and metathorax, 6 on the first to eighth abdominal segments, and 8 on the ninth abdominal segment %K Lutzomyia longipalpis %K morphology %K first instar %K larva %K chaetotaxy %K scanning electron microscopy %U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761997000200011